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Nine Lives: Cats' Central Nervous System Can Repair Itself And Restore Function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yj-ECYvxtCo/090330200722.htm
Scientists studying a mysterious neurological affliction in cats have discovered a surprising ability of the central nervous system to repair itself and restore function.
Tue, 31 Mar 09
New Radiation-free Targeted Therapy Detects And Eliminates Breast Cancer Tumors In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lO61zI1GSbE/090330200726.htm
Combining a compound known as a gallium corrole with a protein carrier results in a targeted cancer therapy that is able to detect and eliminate tumors in mice with seemingly fewer side effects than other breast-cancer treatments, according to new research.
Tue, 31 Mar 09
'Green' Hair Bleach May Become Environmentally Friendly Consumer Product
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yl3Ilhsma8M/090324171420.htm
Scientists from Japan are reporting development of what could be the world's first "green" hair bleach, an environmentally friendly preparation for lightening the color of hair on the head and other parts of the body without the unwanted effects of the bleaches used by millions of people each year.
Tue, 31 Mar 09
Common Fragrance Ingredients In Shampoos And Conditioners Are Frequent Causes Of Eczema
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rEzJBmikq8s/090327112543.htm
Considerably more people than previously believed are allergic to the most common fragrance ingredient used in shampoos, conditioners and soap. Researchers found that over five percent of those who underwent patch testing were allergic to the air oxidized form of the fragrance ingredient linalool.
Tue, 31 Mar 09
'Alarming' Use Of Energy In Modern Manufacturing Methods
http://feeds.sciencedaily.com/~r/sciencedaily/~3/M-jdQ9J3HBo/090327112547.htm
Modern manufacturing methods are spectacularly inefficient in their use of energy and materials, according to a detailed MIT analysis of the energy use of 20 major manufacturing processes.
Tue, 31 Mar 09
Mechanism For Social Development Found To Be Absent In Autistic Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fdne-G32HU0/090330200827.htm
Two-year-olds with autism lack an important building block of social interaction that prompts newborn babies to pay attention to other people. Instead, these children pay attention to physical relationships between movement and sound and miss critical social information.
Tue, 31 Mar 09
New Theory On Largest Known Mass Extinction In Earth's History
http://feeds.sciencedaily.com/~r/sciencedaily/~3/skqwmp0xJAQ/090330102659.htm
The largest mass extinction in the history of the earth could have been triggered off by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation was irretrievably damaged. At the Permian/Triassic boundary, 250 million years ago, about 90 percent of the animal and plant species ashore became extinct. Previously it was thought that volcanic eruptions, the impacts of asteroids, or methane hydrate were instigating causes.
Tue, 31 Mar 09
Pregnancy: Bad Oral Hygiene Can Lead To Complications In Pregnancy And Problems For Babies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gRExqDt7PU8/090330200712.htm
Bacteria from a mother's mouth can be transmitted through the blood and amniotic fluid to her unborn child. This could contribute to the risk of a premature delivery, a low birth-weight baby, premature onset of contractions, or infection of the newborn child. This evidence could have an important implication for women and babies' heath since simple improvement of dental hygiene may help to reduce the incidence of unknown complications in pregnancy and newborn babies.
Tue, 31 Mar 09
Licorice May Block Effectiveness Of Drug Widely Used By Transplant Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AqOJD8hq_co/090324171417.htm
Chemists in Taiwan are reporting that an ingredient in licorice -- widely used in various foods and herbal medicines -- appears to block the absorption of cyclosporine, a drug used by transplant patients to prevent organ rejection. This drug interaction could potentially result in illness and death among transplant patients and others taking cyclosporine and licorice together, they caution.
Tue, 31 Mar 09
Tiny But Toxic: Mechanism Of Neurodegeneration In Alzheimer's Disease Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YOktZt9upmQ/090326120841.htm
Particles of amyloid beta that have not clumped into plaques severely disrupt neurotransmission and delivery of key proteins in Alzheimer's disease, scientists show.
Tue, 31 Mar 09
Groundbreaking Study Reveals Intermediary Steps Of Genetic Encoding For The First Time
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9wrfzeb97Kg/090327124421.htm
Scientists have shed light on a crucial step in the complex process by which human genetic information is transmitted to action in the human cell and frequently at which point genetic disease develops in humans.
Tue, 31 Mar 09
Handwashing More Important Than Isolation In Controlling MRSA Superbug Infection, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_KY3PHuqvzw/090330200708.htm
Regular handwashing by hospital staff and visitors did more to prevent the spread of the MRSA superbug than isolating infected patients. The rates of cross infection with MRSA when patients were not moved to single rooms or nursed in separate MRSA bays were compared to the periods when patients were moved. There was no evidence of increased transmission of infection when patients were not moved.
Tue, 31 Mar 09
Mice And Humans Should Have More In Common In Clinical Trials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X5GzlGIFR14/090330142422.htm
Just as no two humans are the same, scientists have shown treating mice more as individuals in laboratory testing cuts down on erroneous results and could significantly reduce the cost of drug development.
Tue, 31 Mar 09
Slow-growing TB Bacteria Point The Way To New Drug Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/urJplFiyLpI/090329205447.htm
The discovery of a large number of slow-growing Mycobacterium tuberculosis bacteria, which cause tuberculosis, in the lungs of TB patients could be an important step forward in the design of new anti-TB drugs.
Tue, 31 Mar 09
Ice Storms Devastating To Pecan Orchards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QuZm7YlX0s8/090324131456.htm
Ice storms and other severe weather can have devastating impacts on pecan trees. Typical damage, cleanup, and recovery from four ice storms that hit the region from 2000 to 2007 were reported in a recent study. Trees less than 15 feet tall typically had the least damage; trees 15 to 30 feet tall incurred as much or more damage than larger trees and cleanup costs were greater.
Tue, 31 Mar 09
Targeting Oxidized Cysteine Through Diet Could Reduce Inflammation And Lower Disease Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dF_Cyteqt3M/090327112541.htm
High levels of oxidized cysteine in the blood drive white blood cells to send out inflammatory messages, providing a direct link between a key marker of oxidative stress and inflammation. Targeting cysteine with antioxidants could reduce inflammation, which contributes to heart disease and neurodegenerative diseases. Adding cysteine to specialized nutrition formulations could reduce the impact of inflammation and sepsis in critical care patients.
Tue, 31 Mar 09
Simple Method Devised To Predict Rises In Ebro River Level
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-jp0rpjebLA/090329205549.htm
A team of researchers in Spain has developed a new mathematical method to easily predict rises in the level of the Ebro River in Zaragoza based on water flow recorded in Castejón (Navarre). The system has a 97.5% success rate for 20-hour predictions.
Tue, 31 Mar 09
Virtual Music School Becomes A Reality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G1UJmts6MFk/090329205554.htm
Students of popular musical instruments may soon be learning to play with the help of a new generation of intelligent, interactive computer programs, thanks to European researchers.
Tue, 31 Mar 09
Hundreds Of Natural-selection Studies Could Be Wrong, Study Demonstrates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/en_hZ4H73Oc/090330200821.htm
Hundreds of natural-selection studies could have made incorrect conclusions because several statistical methods commonly used by biologists to detect natural selection at the molecular level tend to produce incorrect results, according to new research. The study suggests that, for a more realistic picture of natural selection, biologists should pair experimental data with their statistical data, whenever possible.
Tue, 31 Mar 09
New Test May Predict Breast Cancer Metastasis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/h00ONztRF1M/090327152403.htm
Researchers have identified a new marker for breast cancer metastasis called TMEM, for Tumor Microenvironment of Metastasis. Density of TMEM was found to be associated with the development of distant organ metastasis via the bloodstream -- the most common cause of death from breast cancer.
Tue, 31 Mar 09
Cancer Genomics Browser Gives Cancer Researchers A Powerful New Tool
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_t70eLpobQw/090330142425.htm
A Cancer Genomics Browser provides a new way to visualize and analyze data from studies aimed at improving cancer treatment by unraveling the complex genetic roots of the disease.
Tue, 31 Mar 09
Mechanism That Regulates Cancer-causing Gene Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G7iTsYI3OWM/090326114413.htm
Scientists have revealed how a cancer causing protein is regulated by reactive oxygen species -- a type of stress signal. Their findings provide new insight into how this protein normally behaves in human cells and may help in the design of drugs targeting specific cancers.
Tue, 31 Mar 09
Statistical Road Safety Illuminated By Mathematics Of Eighteenth Century Minister
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YCrXOpeI4-Q/090327092904.htm
What possible connection could there be between an eighteenth century British Presbyterian minister and preventing road traffic accidents in Hartford, Connecticut? Everything, according to a report in the International Journal of Intelligent Systems Technologies and Applications.
Tue, 31 Mar 09
Pregnant Women Who Smoke Urged To Give Up Before 15-week 'Deadline'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Eq4mJyTpqBw/090326215058.htm
Women who stop smoking before week 15 of pregnancy cut their risk of spontaneous premature birth and having small babies to the same as non-smokers, according to new research.
Tue, 31 Mar 09
New Step Towards Quantum Computers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A5yd0Ol5Ctg/090329205547.htm
The intrinsic rotation of electrons -- the "spin" -- is a promising property for future electronics devices. If use as an information carrier were possible, the processing power of electronic components would suddenly increase to a multiple of the present capacity. Physicists have now succeeded in aligning electron spin, bringing it to a controlled "waver" and reading it out. The electron spin can also be realigned as required at any time using optical pulses.
Tue, 31 Mar 09
New Target For Alzheimer's Disease Therapy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w6J3eRAa8OU/090325114529.htm
Researchers have discovered that the unfolded protein response contributes to nerve cell death in Alzheimer's Disease.
Tue, 31 Mar 09
Most Detailed Malaria Map Ever Highlights Hope And Challenges Facing Global Community
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f71YpD0aN78/090323211913.htm
The most detailed map ever created of malaria risk worldwide has been published by an international team of researchers. The Malaria Atlas Project will be a powerful tool for helping target malaria control programs and suggests that elimination of malaria in three-quarters of the world's at-risk areas might be less difficult than previously thought.
Tue, 31 Mar 09
Combination Of Very Low LDL And Normal Systolic Blood Pressure Attenuate Coronary Artery Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fzgv7Lfdk9Y/090323212027.htm
New data show that patients with coronary artery disease (CAD) who achieve very low levels of low-density lipoprotein (LDL) cholesterol along with normal systolic blood pressure have the slowest progression of CAD. The results suggest that patients with CAD should be treated to the most stringent target levels so that they can achieve optimal results from their lipid lowering and antihypertensive therapies.
Tue, 31 Mar 09
Making A Point: Picoscale Stability In A Room-temperature AFM
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SjS6ZQGmObE/090325132334.htm
A research team has shown how to detect and monitor the tiny amount of light reflected directly off the needle point of an atomic force microscope probe, and in so doing has demonstrated a 100-fold improvement in the stability of the instrument's measurements under ambient conditions, work that potentially affects a broad range of research from nanomanufacturing to biology.
Tue, 31 Mar 09
In The Age Of Facebook, Researcher Plumbs Shifting Online Relationships
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wjH6_yZ8IX8/090330091555.htm
A professor is researching details of relationships forged on social networking sites and determining their significance, depth and potential. She has discovered that across the social networking sites, online friendships range from close relationships with strong ties to looser affiliations -- but both types of friendships are useful.
Tue, 31 Mar 09
Team Approach Appears To Work Best For Insect Colonies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L_1obdYK5cM/090327124423.htm
Ants and bees have long been recognized as tireless workers, but now new research suggests they behave like model citizens, too. Unlike herds of bison or shoals of fish -- where individuals may appear to be team players but actually behave according to their own interests -- some animals, including ants and bees, really do have the best interests of the group at heart.
Tue, 31 Mar 09
Egg Makes Sure That Sperm Don't Get Too Old
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TU-oDLbBl8s/090325132448.htm
In contrast to women, men are fertile throughout life. But new research in Sweden has now shown that a fertilizing sperm can get help from the egg to rejuvenate. The result is an important step towards future stem cell therapy.
Tue, 31 Mar 09
Glass You Can Build With: Metallic Glass That's Stronger And Lasts Longer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V5p5qG4NVJk/090324091211.htm
Bulk metallic glass has no crystalline structure, and many kinds of metallic glasses are stronger than their crystalline cousins. But until now they have exhibited poor fatigue resistance -- in other words, they wear out much too fast. Materials scientists have solved the problem with a new way of making metallic glass.
Tue, 31 Mar 09
New Data On Cancer Survival In Europe Show More Patients Are Cured
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_PqU3I7FyNs/090323212114.htm
New data and analyses from a long-running study of cancer survival in Europe have shown that the number of people actually cured of cancer -- rather than just surviving for at least five years after diagnosis -- is rising steadily.
Tue, 31 Mar 09
Coenzyme Rare To Bacteria Critical To Mycobacterium Tuberculosis Survival
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9WkDLu-_lYo/090323212031.htm
Coenzyme F420 is common in archaea, some of which thrive in extreme environments, but rare in bacteria. However, it also helps the bacterium that causes tuberculosis to survive the defenses of the human immune system. Scientists have now discovered at least one way F420 helps to arm the pathogen.
Tue, 31 Mar 09
Why Some People Shake Off The Flu In A Couple Of Days, While Others Suffer Longer, Or Die
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OzC9SFcGMLQ/090326100706.htm
For some people it is a certainty: as soon as the annual flu season gets underway, they are sure to go down with it. It is little comfort to know that there are other people who are apparently resistant to flu or overcome the illness after just a couple of days. It is this phenomenon that is now being investigated using various strains of mice.
Tue, 31 Mar 09
Month Of Conception Linked To Birth Defects In United States
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oNE6vxmNJIg/090330130235.htm
Birth defect rates in the US are highest for women conceiving in the spring and summer, new findings indicate. Researchers also found that this period of increase risk correlated with increased levels of pesticides in surface water across the US.
Tue, 31 Mar 09
Male Circumcision Reduces Risk Of Genital Herpes And HPV Infection, But Not Syphilis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ex6eJrW_y6w/090325180705.htm
Heterosexual men who undergo medical circumcision can significantly reduce their risk of acquiring two common sexually transmitted infections -- herpes simplex virus type 2 (HSV-2), the cause of genital herpes, and human papillomavirus, which can cause cancer and genital warts, according to a new report. In the study, circumcision had no effect on their risk of becoming infected with the bacterium that causes syphilis.
Tue, 31 Mar 09
Superbug Risk To War Wounded
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pJ-qR5fon5Q/090329205451.htm
Soldiers who survive severe injuries on battlefields such as those in Iraq and Afghanistan can be at risk from developing infections of their wounds with multidrug resistant bacteria. The potentially lethal microbes include superbugs such as methicillin resistant Staphylococcus aureus, Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella species and Escherichia coli.
Tue, 31 Mar 09
New Study Suggests Rx Estrogen Delivery Through The Skin May Show Safety Benefits As Opposed To Oral Delivery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pxh-DpZ4yzY/090326134024.htm
Transdermal delivery of estrogen therapy available by prescription "seems not to alter" the risk of venous thromboembolism, or blood clotting, in postmenopausal patients when compared to oral delivery, a new study suggests.
Tue, 31 Mar 09
Computer Simulations Help Fine-tune Laser Attack On Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wEbb3v30Gxg/090325170600.htm
Two lasers may be better than one when attacking cancer cells, according to scientists who are using computer simulations to quantify the effect of heating nanoparticles with near-infrared lasers to kill cancer tumors without damaging healthy tissue.
Tue, 31 Mar 09
Viewers Can Learn A Lot About Objects In Their Field Of Vision, Even Without Paying Attention
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eRzeIYMJVEk/090325150619.htm
Contrary to a common belief on attention, visual learning study indicates that viewers can learn a great deal about objects in their field of vision even without paying attention.
Tue, 31 Mar 09
New Portable Energy Source Utilizes Microbes To Turn Electricity Directly To Methane
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K8QMcinxNJQ/090330111257.htm
A tiny microbe can take electricity and directly convert carbon dioxide and water to methane, producing a portable energy source with a potentially neutral carbon footprint, according to engineers. The process does not sequester carbon, but it does turn carbon dioxide into fuel, according to researchers.
Tue, 31 Mar 09
Autism Skews Developing Brain With Synchronous Motion And Sound
http://feeds.sciencedaily.com/~r/sciencedaily/~3/izxASS1hLKY/090329143314.htm
Individuals with autism spectrum disorders tend to stare at people's mouths rather than their eyes. Now, a study in 2-year-olds with the social deficit disorder suggests why they might find mouths so attractive: lip-sync -- the exact match of lip motion and speech sound. Such audiovisual synchrony preoccupied toddlers who have autism, while their unaffected peers focused on socially meaningful movements of the human body, such as gestures and facial expressions.
Tue, 31 Mar 09
Drop In Daddy Long Legs Is Devastating Bird Populations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nSSYH8vyww0/090326092356.htm
Research shows how climate change is having an impact on upland bird species such as the golden plover.
Tue, 31 Mar 09
Simple Finger Device May Help Predict Heart Attacks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HiboMaYvv3k/090326134026.htm
A simple, noninvasive finger sensor test is "highly predictive" of a major cardiac event, such as a heart attack or stroke, for people who are considered at low or moderate risk, according to researchers.
Tue, 31 Mar 09
New Form Of Destructive Terrorist Material Unlikely, Chemists Report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u8NffJtKrLc/090324200927.htm
Concerns that terrorists could produce a new and particularly dangerous form of the explosive responsible for airport security screening of passengers' shoes and restrictions on liquids in carryon baggage are unfounded, a group of scientists is reporting. Their study demonstrates that a new form of destructive terrorist material is unlikely.
Tue, 31 Mar 09
Activity Of Individual Brain Cells Predicts Cognitive Flexibility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uicS9N-zrQ4/090325132159.htm
A new study provides intriguing insights into mechanisms of cognitive flexibility at the single cell level. The research may help to explain how we can change our point of view when faced with conflict.
Mon, 30 Mar 09
Action Video Games Improve Vision, New Research Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pHthMFFc5C0/090329143326.htm
Video games that involve high levels of action, such as first-person-shooter games, increase a player's real-world vision, according to new research. The ability to perceive changes in shades of gray improves up to 58 percent.
Mon, 30 Mar 09
Starve A Yeast, Sweeten Its Lifespan: Molecular Mechanisms Link Sugar Production And Longevity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f003wDsthn8/090324101801.htm
Researchers have discovered a new energy-making biochemical twist in determining the lifespan of yeast cells, one so valuable to longevity that it is likely to also functions in humans.
Mon, 30 Mar 09
Why Parachutists Die
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dDPNitlOgc0/090323161223.htm
What makes parachuting dangerous? Some people think that it is the risk that the parachute won’t open, but new research shows that carelessness or lack of skill in controlling your body or your parachute through the air is considerably more dangerous.
Mon, 30 Mar 09
Single Embryo Transfer Is Cheapest And Most Effective Strategy For Assisted Reproduction, Studies Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0a1_7aXW8vk/090324200929.htm
Two studies are shedding new light on single embryo transfer (SET). The first presents data from one of the longest running consecutive series of patients who chose SET, and shows that several cycles of fresh or frozen single embryo transfer is more effective and cheaper than double or multiple embryo transfers. The second paper shows that, over three consecutive IVF cycles, combining several different transfer stategies (eSET, DET or standard treatment) was not cost-effective.
Mon, 30 Mar 09
New Material Could Lead To Faster Chips: Graphene May Solve Communications Speed Limit
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rnY3uGnQroA/090324081443.htm
New research findings could lead to microchips that operate at much higher speeds than is possible with today's standard silicon chips, leading to cell phones and other communications systems that can transmit data much faster.
Mon, 30 Mar 09
Video Games, Cell Phones And Academic Performance: Some Good News
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cGZqJ34HQ24/090324131454.htm
Using cell phones and playing video games may not be as harmful to children's academic performance as previously believed, according to new research.
Mon, 30 Mar 09
Fish Oils Reduce Greenhouse Gas Emissions From Flatulent Cows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tyikMhqJP-k/090329205457.htm
Omega 3 fatty acids in fish oils can improve meat quality and reduce methane emissions in cows. Methane given off by farm animals is a major contribution to greenhouse gas levels. Researchers report that by including 2 percent fish oil in the diet of cattle, they achieved a reduction in the amount of methane released by the animals.
Mon, 30 Mar 09
Genetic Changes Outside Nuclear DNA Suspected To Trigger More Than Half Of All Cancers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_CBJJivfutc/090324101759.htm
A buildup of chemical bonds on certain cancer-promoting genes, a process known as hypermethylation, is widely known to render cells cancerous by disrupting biological brakes on runaway growth. Now, scientists say the reverse process -- demethylation -- which wipes off those chemical bonds may also trigger more than half of all cancers.
Mon, 30 Mar 09
Plastic Protein Protects Bacteria From Stomach Acid's Unfolding Power
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FpH3Kih-0Jc/090323212033.htm
A tiny protein helps protect disease-causing bacteria from the ravaging effects of stomach acid, researchers at the University of Michigan and Howard Hughes Medical Institute have discovered.
Mon, 30 Mar 09
Family History Associated With Increased Risk Of Blood Clots
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JPIdkoLECEs/090323161119.htm
Children and siblings of those with venous thrombosis, or blood clots in the veins, appear to have more than double the risk of developing the condition than those without a family history, according to a new article.
Mon, 30 Mar 09
Quantum Effect May Hold Promise For Low-cost DNA Sequencing, Sensor Applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yV1cxcYCop0/090322154420.htm
A ghostly property of matter, called quantum tunneling, may aid the quest for accurate, low-cost genomic sequencing, according to a new article.
Mon, 30 Mar 09
Psychiatric Disorders Are Common In Adults Who Have Had Anorexia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PCL93Ae9tl8/090326134012.htm
Many adults who were diagnosed as teenagers to be suffering from anorexia nervosa cannot work due to psychiatric disorders. A follow-up 18 years after the onset of anorexia has shown that one in four are on disability benefit or have been signed off sick.
Mon, 30 Mar 09
Food Choices Evolve Through Information Overload
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WOPUVH9yir4/090323212116.htm
Ever been so overwhelmed by a huge restaurant menu that you end up choosing an old favorite instead of trying something new? Psychologists have long since thought that information overload leads to people repeatedly choosing what they know. Now, new research has shown that the same concept applies equally to hundreds of animal species, too.
Mon, 30 Mar 09
Strategy Discovered For Fighting Persistent Bacterial Infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZT602qKzKpk/090323143910.htm
Researchers have discovered a promising strategy for destroying the molecular scaffolding that can make Pseudomonas bacterial infections extremely difficult to treat in cystic fibrosis patients.
Mon, 30 Mar 09
Efficiency Of Blue Organic Light-emitting Diode Boosted By 25%
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A3mGd8PxBG4/090322154424.htm
Researchers have designed new host materials for a blue phosphorescent OLED that boost efficiency by at least 25 percent and help solve "weakest link" in development of cost-effective white OLEDs.
Mon, 30 Mar 09
Genomic Variations In African-American And White Populations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jIrcxbC5mnM/090323211921.htm
Deletions, duplications or rearrangements of genomic regions in the human genomes produce differences in gene copy numbers, referred to as copy number variations (CNV). Those variations account for a substantial portion of human genetic diversity, and in a few cases, have been associated with behavioral traits or increased susceptibility to disease. A new study describes a CNV map of the African-American genome, and compares frequencies of CNVs between African-American and white American/European populations.
Mon, 30 Mar 09
TV Crime Drama Compound Highlights Immune Cells' Misdeeds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IY2SEElmKZU/090322154439.htm
Detectives on television shows often spray crime scenes with a compound called luminol to make blood glow. Researchers have now applied the same compound to much smaller crime scenes: sites where the immune system attacks the body's own tissues.
Mon, 30 Mar 09
Mending A Broken Heart: Closer Look At 'Broken Heart Syndrome'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gXSeBu1yEF0/090326092354.htm
Researchers have created a registry of 70 patients with the medical phenomenon known as "broken heart syndrome."
Mon, 30 Mar 09
Optimal Running Speed Associated With Evolution Of Early Human Hunting Strategies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VvctnP2_kd0/090319142411.htm
Runners, listen up: If your body is telling you that your pace feels a little too fast or a little too slow, it may be right. A new study shows that the efficiency of human running varies with speed and that each individual has an optimal pace at which he or she can cover the greatest distance with the least effort. Such efficient locomotion probably provided our ancestors with an advantage for hunting and gathering food.
Mon, 30 Mar 09
Vitamin D Supplements Associated With Reduced Fracture Risk In Older Adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7lw_quWsI3w/090323161115.htm
Oral vitamin D supplements at a dose of at least 400 international units per day are associated with a reduced risk of bone fractures in older adults, according to results of a meta-analysis.
Mon, 30 Mar 09
Improved Antibiotic: Genes For Synthesizing Thiostrepton Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EmUjk0L4gY8/090323161123.htm
Researchers have identified the genetic machinery responsible for synthesizing thiostrepton, a powerful antibiotic produced by certain bacteria. The drug is effective against the dangerous MRSA (methicillin-resistant Staphylococcus aureus) and vancomycin-resistant enterococci.
Mon, 30 Mar 09
High Triglyceride Levels Common, Often Untreated Among Americans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UkqGDZuD6vM/090323161117.htm
High concentrations of blood fats known as triglycerides are common in the United States, according to a new article. Lifestyle changes are the preferred initial treatment for hypertriglyceridemia (the resulting condition), but physical inactivity, obesity and other modifiable risk factors remain prevalent.
Mon, 30 Mar 09
'Leaf Tatters' Linked To Herbicides: Study Explores Effects Of Herbicide Drift On White Oak
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e36d4J4kVyo/090325162624.htm
Herbicide drift, when pesticides "drift" from the targeted application area to a nontargeted area was studied by researchers who evaluated the effects of field corn herbicides on white oak seedlings. White oak, a popular landscape and forest species native to the eastern United States, has been suffering from an abnormality called "leaf tatters." The study simulated herbicide drift using herbicides commonly applied to corn and previously found to injure plants.
Mon, 30 Mar 09
US Hospitals Extremely Slow To Adopt Electronic Health Records, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x0r_FsSzv4M/090325180703.htm
Researchers found that less than two percent of surveyed hospitals had implemented comprehensive EHR; further, less than eight percent had basic EHR in place. It is the first nationally representative study of the prevalence of EHR in hospitals.
Mon, 30 Mar 09
Vertigo Linked To Osteoporosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lln6WYbs4mU/090323161107.htm
People who have osteoporosis are more likely to also have vertigo, according to a new study. Vertigo is an inner ear disorder that is a common cause of dizziness.
Mon, 30 Mar 09
Time (and PPAR-beta/delta) Heals All Wounds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q-WZSjXQFhU/090323092709.htm
Mammalian skin requires constant maintenance, but how do skin cells know when to proliferate and at what rate? Scientists reveal that skin fibroblasts use a protein called PPAR²/´ to make sure overlying epithelial cells don't proliferate too quickly. Their results highlight how communications between different cell types are critical to maintain the skin as a barrier against the outside world.
Mon, 30 Mar 09
Possible Risk Group For Statin Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_b9G5Iqat5Y/090323143904.htm
In a study of over 1,000 individuals with coronary artery disease, researchers have found that high levels of an enzyme called PLTP significantly increased the risk of heart attack in the subset of patients taking statins, suggesting that high levels of PLTP in the blood should be a consideration for potential statin treatment.
Mon, 30 Mar 09
Pulp Waste Could Be Useful In Cement Production
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6JKCItqVrDY/090323161229.htm
An alternative to landfill disposal for waste products of the paper industry that can be used to make clinker for cement production, according to new research.
Mon, 30 Mar 09
New Guidelines Will Help Detect And Study Counterfeit Medicines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ap6zsEWz9Cg/090323211917.htm
New guidelines proposed by a group of international experts will help better study the prevalence and geography of counterfeit and other poor quality medicines that threaten public health across the world.
Sun, 29 Mar 09
Researchers Pump Up Artificial Muscles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XndMlBO_-Og/090328163057.htm
Engineers are exploring the field of artificial muscles to invent "smart" devices that can grab and move objects.
Sun, 29 Mar 09
Stem Cell Research: New Way To Make Stem Cells Avoids Risk Of Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9pf0bNumwHs/090326141547.htm
Scientists have found a way to endow human skin cells with embryonic stem cell-like properties without inserting potentially problematic new genes into their DNA. They have now created induced human pluripotent stem (iPS) cells completely free of viral vectors and exotic genes.
Sun, 29 Mar 09
American Birds Sending Troubling Message About The Environment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z_Y6_SG5gbE/090323113103.htm
A new report based on 40 years of data shows that birds are sending an important and troubling message about the state of the environment. The report also shows that investment in conservation works, exemplified by the remarkable recoveries of waterfowl after more than 30 million acres of wetlands were restored and managed.
Sun, 29 Mar 09
Super Micro-surgery Offers New Hope For Breast Cancer Patients With Lymphedema
http://feeds.sciencedaily.com/~r/sciencedaily/~3/74x1gl_pMgk/090323101819.htm
Breast cancer patients with lymphedema in their upper arm experienced reduced fluid in the swollen arm by up to 39 percent after undergoing a super-microsurgical technique known as lymphaticovenular bypass.
Sun, 29 Mar 09
Keeping Golf Courses Green When Fresh Water Is Limited
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FjC2NLdAWSQ/090321103813.htm
Utilizing "treated sewage effluent," or "reuse water," for landscape irrigation in southern Nevada is an environmentally acceptable alternative to the current system of discharging waste water into rivers and lakes. Golf course superintendents have expressed concerns over the use of reuse water because of hidden costs. Researchers conducted a monitoring program on nine golf courses in the Las Vegas valley for 4.5 years to assess the impact of reuse water on soil-turfgrass systems.
Sun, 29 Mar 09
Exercise Program Reduces Migraine Suffering
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KNnpt43q00Q/090326141557.htm
While physical exercise has been shown to trigger migraine headaches among sufferers, a new study describes an exercise program that is well tolerated by patients. The findings show that the program decreased the frequency of headaches and improved quality of life.
Sun, 29 Mar 09
Cassini Provides Virtual Flyover Of Saturn's Moon Titan
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3YEAMNJMPuc/090328163312.htm
New movies and images from Cassini of Saturn's moon Titan are providing a bird's-eye view of the moon's Earth-like landscapes.
Sun, 29 Mar 09
Structure Of Protein That Makes Cancer Cells Resistant To Chemotherapy Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k5bJ6yAqfpI/090326141555.htm
Scientists have obtained the first glimpse of a protein that keeps certain substances, including many drugs, out of cells. The protein, called P-glycoprotein or P-gp for short, is one of the main reasons cancer cells are resistant to chemotherapy drugs. Understanding its structure may help scientists design more effective drugs.
Sun, 29 Mar 09
New Method Of Assessing Women's Eggs Could Enhance IVF Success, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CZt52LZi8s0/090323143908.htm
A professor of obstetrics and gynecology recently published findings on a way to "profile" a woman's eggs to determine which are more likely to result in pregnancies.
Sun, 29 Mar 09
Gene Variant Associated With Chronic Obstructive Pulmonary Disease Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kn5ExlSnT1k/090319224528.htm
Researchers have, for the first time, identified a gene variant on chromosome 4 that may be a potential risk factor for chronic obstructive pulmonary disease.
Sun, 29 Mar 09
Understanding Sea Temperature-atmospheric Pressure Links In North Atlantic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0YUZcev68CY/090325155634.htm
Feedback effects between the ocean and atmosphere are important to understanding the mechanisms affecting climate variations. Previous studies have found that atmospheric anomalies associated with a variation in atmospheric pressure above the North Atlantic Ocean called the North Atlantic Oscillation produce a three-part pattern (tripole) of sea surface temperature anomalies at midlatitudes.
Sun, 29 Mar 09
Stairwell Evacuation Study Finds 'What We Know We Don't Know'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d0cTbdYFmmw/090325132344.htm
Most of the time, we use the stairs in buildings -- especially in high-rise structures -- only as a back-up for faster elevators and escalators, but during a fire or other emergency, stairs become our primary passage to survival. In a new study, researchers examined what we know about how stairs work as an emergency evacuation route and found that the answer is... not nearly enough.
Sun, 29 Mar 09
Early Agriculture Left Traces In Animal Bones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UTUYu0g3XcU/090324081439.htm
Unraveling the origins of agriculture in different regions around the globe has been a challenge for archeologists. Now researchers report finding evidence of early human experiments with grain cultivation in East Asia. They gathered this information from an unlikely source -- dog and pig bones.
Sun, 29 Mar 09
Mouse Model Of Human Psoriasis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bzmWwTU_tOM/090325114654.htm
Researchers have developed a new mouse model to study human psoriasis.
Sun, 29 Mar 09
Insight Into The Way Nicotine Works In The Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jj0gDy_F3ho/090323161121.htm
A tiny genetic mutation is the key to understanding why nicotine -- which binds to brain receptors with such addictive potency -- is virtually powerless in muscle cells that are studded with the same type of receptor.
Sun, 29 Mar 09
Malaria: New Findings Highlight The Role Of Endothelial Cell Activation In Children With Cerebral Malaria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SdTjg5FYzl4/090319224530.htm
Researchers have identified a novel pathway that may contribute to the high mortality associated with severe malaria in sub-Saharan African children. The study reports that severe Plasmodium falciparum infection results in disruption of the endothelium, causing release of ultra-large von Willebrand factor protein.
Sun, 29 Mar 09
Study Assesses Impact Of Fish Stocking On Aquatic Insects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eG9JGZ8aNaQ/090326162749.htm
The impact fish stocking has on aquatic insects in mountain lakes can be rapidly reversed by removing non-native trout, according to a new study.
Sun, 29 Mar 09
Catering To Car Buyers’ Desires
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uxm9pDc1ngY/090325092111.htm
Buying a new car is one of the biggest purchases most people make. But how can you be sure that the car you order will live up to your expectations? European and Asian researchers are using immersive virtual reality and emotional design to offer a solution.
Sun, 29 Mar 09
Does Prebiotic Material Exist In Outer Space?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Syp37e4GESQ/090326152507.htm
Both a Spanish and a French astrophysicist have identified a band in the infrared range that serves to track the presence of organic material rich in oxygen and nitrogen in the interstellar dust grains. Should any telescope detect this band, the presence in space of aminoacids and other substances, which are the precursors to life, could be confirmed.
Sun, 29 Mar 09
Gene Variants May Determine Lung Function And Susceptibility To Maternal Smoking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YVyewo6nsH8/090326084748.htm
A tiny variation within a single gene can determine not only how quickly and well lungs grow and function in children and adolescents, but how susceptible those children will be to exposure to second-hand tobacco smoke, even in utero.
Sun, 29 Mar 09
Analysis Of Windmill Pitching Shows Risk Of Injury To Biceps In Softball Players
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ADICPCAdVBM/090324171600.htm
Contrary to common belief, softball pitching subjects the biceps to high forces and torques when the player's arm swings around to release the ball, according to an analysis of muscle firing patterns.
Sun, 29 Mar 09
New Gene Linked To Low Levels Of Magnesium
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-gf1wF_M8oE/090324213335.htm
A small number of individuals have genetic mutations that cause them to have very low levels of magnesium, which can cause altered heart beats, seizures, and involuntary muscle contraction.
Sun, 29 Mar 09
New Biometric ID: A Quick X-ray Snapshot Of A Person's Knees
http://feeds.sciencedaily.com/~r/sciencedaily/~3/340qFUguSNQ/090325150611.htm
Forget LED thumb-pad identification devices, complex retinal laser scanning, or even computerized iris recognition. The way forward for biometric validation is a quick X-ray snapshot of a person's knees, according to a new report.
Sun, 29 Mar 09
Brain Activity Predicts People's Choices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lh6qNSHzcmk/090324171554.htm
The activity in one brain structure can predict people's preferences, according to new research. The study shows that even when people rate options similarly, they will choose the one that causes more activation in the caudate nucleus, a brain region involved in anticipating reward.
Sun, 29 Mar 09
New Sun-Watching Instrument To Monitor Sunlight Fluctuations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6u8arXCkaRQ/090328163643.htm
During the Maunder Minimum, a period of diminished solar activity between 1645 and 1715, sunspots were rare on the face of the sun, sometimes disappearing entirely for months to years. At the same time, Earth experienced a bitter cold period known as the "Little Ice Age." Were the events connected? Scientists cannot say for sure, but it's quite likely.
Sun, 29 Mar 09
Rust Resistance Genes In Soybeans Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b2iD-BFrtlI/090328152908.htm
Using state-of-the-art genomics techniques, scientists have identified a cluster of soybean genes that provide resistance to the fungus which causes Asian soybean rust. The discovery will help defend the $27 billion U.S. soybean crop against the disease, through conventional breeding or biotechnological means.
Sun, 29 Mar 09
New Device Helps Control Disease-causing Ticks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JOtVlPujEVc/090328152625.htm
Spring is finally here, and with it comes tick season. Scientists are reporting the latest in a series of related studies on the effectiveness of a new technology that reduces tick populations.
Sun, 29 Mar 09
Need Wild Bees? Plastic Totes Make A Superb Bee 'Nursery'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_nIwfxhgHUQ/090328152243.htm
Corrugated plastic bins like the kind sold for handling mail and packages can be quickly and easily converted into a durable "nursery" for wild bees, according to a research entomologist.
Sun, 29 Mar 09
New Clues Discovered About Divergent Origin Of Sudden Oak Death Pathogen
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JMZTTosf0Nc/090328152029.htm
Sudden oak death not only causes nearly instant death to the mighty oak trees of the western United States, but also has forced many tree nurseries out of business in that region. But a new discovery about the disease pathogen's distant past--perhaps as long ago as half a million years -- may offer clues to scientists about ways to thwart the disease.
Sat, 28 Mar 09
Sexual Reproduction: Birds Do It, Bees Do It; Termites Don't, Necessarily
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BUVwcX672Bw/090326141549.htm
Scientists have shown for the first time that it is possible for certain female termite "primary queens" to reproduce both sexually and asexually during their lifetimes. The asexually produced babies mostly grow to be queen successors -- so-called "secondary queens" -- that remain in the termite colony and mate with the king. This produces large broods of babies without the dangers of inbreeding, as secondary queens have no genes in common with the king.
Sat, 28 Mar 09
Drinking Very Hot Tea Can Increase The Risk Of Throat Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sSw8P05Phjk/090326215100.htm
People are advised to wait a few minutes before drinking a cup of freshly-boiled tea today as a new study finds that drinking very hot tea (70 degrees C or more) can increase the risk of cancer of the esophagus, the muscular tube that carries food from the throat to the stomach.
Sat, 28 Mar 09
Hollow Gold Nanospheres Show Promise For Biomedical And Other Applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4iOgsr_PLxI/090322154415.htm
A new metal nanostructure has already shown promise in cancer therapy studies and could be used for chemical and biological sensors and other applications as well. The hollow gold nanospheres have a unique set of properties, including strong, narrow and tunable absorption of light.
Sat, 28 Mar 09
Environmental Cleaning Intervention Reduces Transmission Of Multidrug-resistant Organisms In ICUs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l2PIkshjklk/090320092107.htm
A new study presents hospital cleansing methods to reduce spread of infectious diseases such as MRSA and VRE.
Sat, 28 Mar 09
Underground Subatomic-particle Measurements Yield Meteorological Clues
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nO6pAFA9viE/090325155429.htm
When high-energy cosmic rays interact with molecules in the atmosphere, they produce muons, negatively charged elementary particles that can be detected at ground level or underground. The rate of these muons detected by underground detectors has been found to correlate strongly with temperature changes in the upper air.
Sat, 28 Mar 09
Visual Learners Convert Words To Pictures In The Brain And Vice Versa, Says Psychology Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V-YNy0zH2Sc/090325091834.htm
Using functional magnetic resonance imaging technology, a new study reveals that people who consider themselves visual learners, as opposed to verbal learners, have a tendency to convert linguistically presented information into a visual mental representation. The opposite also appears to be true from the study's results.
Sat, 28 Mar 09
Smokers May Have Increased Risk Of Pancreatitis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D-xAUx1sC10/090323161113.htm
Smoking appears to be associated with an increased risk of acute and chronic pancreatitis, according to a new article. In addition, the risk of developing the disease may be higher in those who smoke more.
Sat, 28 Mar 09
Climate And Habitat Diversity Affect Variety Of Animal Species In Spain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/03QmH9T8lr4/090320092245.htm
The Iberian Peninsula is one of the richest regions of Europe in terms of animal biodiversity. Spanish researchers have shown that the variation in terrestrial vertebrate diversity in Spain is influenced above all by climate.
Sat, 28 Mar 09
New Protein Important In Breast Cancer Gene's Role In DNA Repair Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nvkGYXpmE0U/090318104328.htm
A new study has identified genes associated with the BRCA1 protein and their involvement in the DNA repair pathway, helping to clear the way for researchers to better understand what goes wrong when the BRCA1 gene is mutated and the repair pathway goes haywire. Identifying patients with mutations in these BRCA1-associated genes may help better fight breast cancer.
Sat, 28 Mar 09
Airborne Acid May Help Soot Turn Into Cloud Seeds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rkrLOFnLX4w/090325155535.htm
Carbon soot aerosols from combustion of fossil fuels and forest fires directly influence the Earth-atmosphere heat balance by absorbing sunlight. Fresh soot particles repel water and hence have little effect on properties and lifetimes of clouds. As soot particles age, they are thought to undergo a weathering process that allows them to absorb water, potentially transforming particles into cloud condensation nuclei.
Sat, 28 Mar 09
Structure More Effective In High School Science Classes, Study Reveals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NlT5dOvBVS4/090326114415.htm
Self-led, self-structured inquiry may be the best method to train scientists at the college level and beyond, but it's not the ideal way for all high school students to prepare for college science. That's according to findings of a new study.
Sat, 28 Mar 09
Airborne Dust Reduction Plays Larger Than Expected Role In Determining Atlantic Temperature
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t-6PvnJg-T8/090326141553.htm
The recent warming trend in the Atlantic Ocean is largely due to reductions in airborne dust and volcanic emissions during the past 30 years, according to a new study.
Sat, 28 Mar 09
Missing Or Mutated 'Clock' Gene Linked To Vascular Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bFwIsvslPlw/090325142513.htm
The circadian clocks that set the rhythmic motion of our bodies for wakeful days and sleepy nights can also set us up for vascular disease when broken.
Sat, 28 Mar 09
Proteins From Garden Pea May Help Fight High Blood Pressure, Kidney Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UyyWkIiFE84/090322154407.htm
Researchers in Canada are reporting that proteins found in a common garden pea show promise as a natural food additive or new dietary supplement for fighting high blood pressure and chronic kidney disease. Those potentially life-threatening conditions affect millions of people worldwide.
Sat, 28 Mar 09
Stem Cell Administration Study Demonstrates Improved Quality Of Life For Patients Suffering From Spinal Cord Injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TUK79skhOks/090312130650.htm
Scientists are reporting the safety and feasibility of a new acute and chronic spinal cord injury treatment platform. Their study demonstrates that administering adult autologous bone marrow derived stem cells via multiple routes is feasible, safe, and most importantly, improves the quality of life for both acute and chronic spinal cord injury patients.
Sat, 28 Mar 09
New Tool Differentiates Artificial From Natural Nitrogen-oxide Pollution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eC58okStoQM/090325155829.htm
Nitrogen oxides in the atmosphere, which are produced by lightning, biomass burning, and soil outgassing, are converted into atmospheric nitrate through oxidation reactions. Nitrogen oxide, itself a pollutant, controls the production of ozone, which in turn is a greenhouse gas and a pollutant at ground levels. Atmospheric nitrate contributes to the load of atmospheric particulate matter and, along with sulfate, to acid rain.
Sat, 28 Mar 09
Education Slowing AIDS In Sub-Saharan Africa
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l9ZcKIHXbq4/090322154441.htm
Increased schooling across sub-Saharan Africa may be lowering new HIV infections among younger adults, according to sociologists, suggesting a shift in a decades-long trend where formal education is considered an AIDS risk factor.
Fri, 27 Mar 09
Crabs Not Only Suffer Pain, But Retain Memory Of It
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aoDLwloHrBk/090327072759.htm
New research has shown that crabs not only suffer pain but that they retain a memory of it. The study looked at the reactions of hermit crabs to small electric shocks.
Fri, 27 Mar 09
New Nanogenerator May Charge IPods And Cell Phones With A Wave Of The Hand
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U2Kp3Lt-wJc/090326114403.htm
A new nanogenerator may charge iPods and cell phones with a wave of the hand. Scientists have described technology that converts mechanical energy from body movements or even the flow of blood in the body into electric energy that can be used to power a broad range of electronic devices without using batteries.
Fri, 27 Mar 09
New Research Highlights Dramatically Reduced Risk Of Developing Dementia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wd5ZANNdMJc/090323093013.htm
People with memory problems are less at risk of developing dementia than previously thought, a new study reveals.
Fri, 27 Mar 09
Recipe For Dog Bite Injuries: Kids, Dogs And Warm Weather
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9hjmTtix1ek/090319171332.htm
If you and your child are romping in the park or enjoying a stroll on a warm spring day and a dog approaches, be ultra vigilant. Children, warm weather, and dogs, even family dogs, don't mix well, according to a new study.
Fri, 27 Mar 09
Biopsy Of Recurrent Breast Cancer Can Alter Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9RHx9tfJ1dU/090318211238.htm
For women with recurrent breast cancer, the treatment the doctor chooses is usually based on the properties of their original breast cancer.
Fri, 27 Mar 09
What's Driving Specific Patterns Of Gene Expression Among Cell Types?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N1FN9i9GGX0/090318140518.htm
Providing another tool to help to understand gene regulation on a global scale, a nationwide research team has identified and mapped 55,000 enhancers, short regions of DNA that act to enhance or boost the expression of genes. The map will help scientists understand how cells control expression of genes specific to their particular cell type.
Fri, 27 Mar 09
Good Dog/Bad Dog: Geriatrician Notes Dangers Of Pet-Related Falls
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R-SlxmgJ7EI/090326181720.htm
"Falling all over" a pet usually refers to indulging or pampering a four-legged companion, but a new report shows that many Americans, particularly the elderly, are falling over their dogs and cats literally... and hurting themselves.
Fri, 27 Mar 09
Face Recognition: The Eyes Have It
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JMjfCL4l3o8/090326215054.htm
Our brain extracts important information for face recognition principally from the eyes, and secondly from the mouth and nose, according to a new study. This result was obtained by analyzing several hundred face images in a way similar to that of the brain.
Fri, 27 Mar 09
Alarming New Data Shows TB-HIV Co-infection A Bigger Threat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BGmO9DGht9Y/090324131600.htm
The World Health Organization released staggering new data about the threat of tuberculosis and the toll it takes on people with HIV/AIDS March 24, in recognition of World TB Day.
Fri, 27 Mar 09
Carbonated Oceans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y45oVVofWe4/090320164659.htm
The loading of carbon dioxide into oceans is a consequence of fossil fuel use that has only begun to be widely recognized as problematic in the past decade. Its subsequent effects on seawater chemistry have the potential to spread ecological disaster to a variety of industries dependent on the seas.
Fri, 27 Mar 09
3-D Snapshots Of Eyes Reveal Details Of Age-related Blindness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Eou5lQeWrLw/090319171334.htm
To get a better look at the abnormalities that cause age-related macular degeneration, the leading cause of vision loss in Americans and Europeans over 50, researchers have created ultra-detailed 3-D images of the eyes of more than 2,000 people from different ethnic groups, 400 of whom have AMD.
Fri, 27 Mar 09
New Technique Used To Profile Anthrax Genome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YaIa1e7NsZw/090320102134.htm
Scientists have used a new approach, known as RNA-Seq, to profile the gene expression of the bacterium that causes anthrax. Their study marks the first time any bacterial transcriptome has been comprehensively defined, and provides a much more detailed view of how bacteria regulate their gene expression.
Fri, 27 Mar 09
Retired National Football League Linemen Have High Incidence Of Sleep Apnea
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w7g8YaqK35k/090326150552.htm
Sleep disordered breathing, also known as sleep apnea, is highly prevalent among retired National Football League players, and particularly in linemen. This study, involving 167 players, adds to the growing body of research examining the relationship between sleep apnea and heart disease, the investigators say.
Fri, 27 Mar 09
Nanoparticles In Cosmetics, Personal Care Products May Have Adverse Environmental Effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/32IPSB7nSMo/090326162747.htm
Using aquatic microbes as their "canary-in-a-cage," scientists from Ohio are reporting that nanoparticles now being added to cosmetics, sunscreens, and hundreds of other personal care products may be harmful to the environment.
Fri, 27 Mar 09
Molecular Fingerprints Point The Way To Earlier Cancer Diagnosis And More Targeted Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8JmrwcnGMC8/090323110500.htm
Metabolites are molecular fingerprints of what your cells are up to and researchers wants to know the impression made by cancer.
Fri, 27 Mar 09
One Quarter Of The World’s Population Depends On Degrading Land
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6SZw1SpbUr4/090320092249.htm
A new study attempts for the first time to measure the extent and severity of land degradation across the globe and concludes that 24% of the land area is degrading -- often in very productive areas. Land degradation -- the decline in the quality of soil, water and vegetation -- is of profound importance but until now there have been no consistent global data by which to assess its extent and severity.
Fri, 27 Mar 09
Road Map For Elimination Of Central Line-associated Bloodstream Infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E35CUL1aaxQ/090321103805.htm
Central line-associated bloodstream infections fell by more than 90 percent during the past three years at the Hospital of the University of Pennsylvania due to a novel, multi-pronged approach.
Fri, 27 Mar 09
Hormone-mimics In Plastic Water Bottles Act As Functional Estrogens
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X1HhUrPdgVo/090326100714.htm
Plastic packaging is not without its downsides, and if you thought mineral water was "clean," it may be time to think again. According to new research, plastic mineral water bottles contaminate drinking water with estrogenic chemicals. Substances leaching out of plastic food packaging materials act as functional estrogens.
Fri, 27 Mar 09
Public Transit Users Three Times More Likely To Meet Fitness Guidelines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7rlKaD4uodo/090326134014.htm
A new study suggests taking public transit may help you keep fit.
Fri, 27 Mar 09
Proteins By Design: Biochemists Create New Protein From Scratch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8mLXgW4wO4k/090323154349.htm
Using design and engineering principles learned from nature, a team of biochemists have built -- from scratch -- a completely new type of protein. This protein can transport oxygen, akin to human neuroglobin, a molecule that carries oxygen in the brain and peripheral nervous system. Some day this approach could be used to make artificial blood for use on the battle field or by emergency-care professionals.
Fri, 27 Mar 09
Brain Activity Associated With Phantom Limbs, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PE8RfNhrYuQ/090325162626.htm
Phantom limbs, often described after amputation, are also experienced as an extra limb in patients who are paralyzed on one side following a stroke. Referred to as supernumerary phantom limb, patients can usually perceive these limbs as a vivid somatosensory presence of an extra limb, but generally cannot see or intentionally move them.
Fri, 27 Mar 09
New Surface Material That Resists Biofilm Growth Created
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3GoEFtIxR2I/090319142435.htm
This is the tale of two biological substances -- cells from mammals and bacteria. It's a story about the havoc these microscopic entities can wreak on all manner of surfaces, from mighty ships to teeth and medical devices, and how two researchers are discovering new ways prevent the damage.
Fri, 27 Mar 09
World’s First Successful ViKY Robot-assisted Surgery For Pancreatic Tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0aQhhH4VcVs/090324131602.htm
Doctors performed the world's first successful minimally invasive distal pancreatectomy using the ViKY system's revolutionary robotic, compact laparoscope holder. The technology, developed in France and tested on thousands of patients in Europe, made its debut in a cancer setting in the United States at Fox Chase.
Fri, 27 Mar 09
Why Is There More Matter Than Antimatter In The Natural World?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a985hVqZpuQ/090325132855.htm
Mathematicians have for the first time estimated, from mathematical symmetry arguments, the size of a fundamental imbalance pervading the subatomic world. This imbalance, called the CP violation, distinguishes matter from antimatter and is essential to understanding why matter predominates over antimatter in the natural world.
Fri, 27 Mar 09
TV Shows Convey Mixed Messages About Alcohol Consumption In Youth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hAzzA7kS8jg/090325142515.htm
Efforts to dissuade youth consumption through negative alcohol consumption depictions can be thwarted by portrayals of positive consumption in prime-time television programming. A new study reveals that television series often portray mixed messages about alcohol, but the positive and negative messages were shown differently.
Fri, 27 Mar 09
Why Certain Fishes Went Extinct 65 Million Years Ago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U_3AbL6HGeY/090326134020.htm
Large size and a fast bite spelled doom for bony fishes during the last mass extinction 65 million years ago (the same one that led to the extinction of thousands of species of flora and fauna, including dinosaurs). Today, those same features characterize large predatory bony fishes, such as tuna and billfishes, that are currently in decline and at risk of extinction themselves. The hardest hit species are consistently big predators.
Fri, 27 Mar 09
Bioengineered Proteins: Trial Confirms New Way To Tackle Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KqwY837VOp4/090325222010.htm
Re-engineering a protein that helps prevent tumors spreading and growing has created a potentially powerful therapy for people with many different types of cancer. In a new study, Canadian researchers modified the tumor inhibiting protein, von Hippel-Lindau, and demonstrated that it could suppress tumour growth in mice.
Fri, 27 Mar 09
New Listening Device Should Help Find Trapped Miners
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qaq-3UMPWt8/090326084756.htm
Scientists devised a new way to find miners trapped by cave-ins. The method involves installing iron plates and sledgehammers at regular intervals inside mines, and sensitive listening devices on the ground overhead.
Fri, 27 Mar 09
Anti-microbial Catheter To Cut Infection Risk For Dialysis Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wLHPEg8dGXE/090324131718.htm
Medical experts have shown that an innovative anti-microbial catheter could vastly improve treatment and the quality of life for many community-based dialysis patients.
Fri, 27 Mar 09
Dewdrop-sized Motes Serve As Invisible Security Guards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S4f_nrK3Zvk/090326120839.htm
Dewdrop-sized motes serve as invisible security guards. Scattered outdoors on rocks, fence posts and doorways, or indoors on the floor of a bank, the dewdrops are a completely new and cost-effective system for safeguarding and securing wide swathes of property.
Fri, 27 Mar 09
Financial Advice Causes 'Off-loading' In The Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ixMI77ob6Po/090323211931.htm
A study using functional magnetic resonance imaging shows that expert advice may shut down areas of the brain responsible for decision-making processes, particularly when individuals are trying to evaluate a situation where risk is involved.
Fri, 27 Mar 09
Why Animals Migrate: New Understandings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KVYfleJ9BiA/090326141543.htm
For the first time, engineers have observed the initiation of a mass gathering and subsequent migration of hundreds of millions of animals -- in this case, fish.
Fri, 27 Mar 09
Imaging Technique May Trace Development Of Parkinson's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6IVZgBfg1GM/090324151953.htm
While finding a biomarker for Parkinson's disease that would let physicians screen for or track progression of the disease remains an elusive goal, neuroscientists have shown that a noninvasive brain scanning technique offers promise.
Fri, 27 Mar 09
Gorilla Gets MRI At Bronx Zoo
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d-pkRW9vDNY/090326134018.htm
A brain scan was performed on a gorilla at the Bronx Zoo. The on-site procedure—performed by dozens of wildlife veterinarians, zookeepers, and medical personnel from several institutions—was made possible by the Bobby Murcer Mobile MRI Unit, a 48-foot-long MRI facility on wheels that conducted a comprehensive neurological scan on the brain of Fubo, a 42-year-old western lowland gorilla.
Fri, 27 Mar 09
Eating Soy Early In Life May Reduce Breast Cancer Among Asian Women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BFVxkvZ4bGw/090324131442.htm
Asian-American women who ate higher amounts of soy during childhood had a 58 percent reduced risk of breast cancer, according to a new study.
Fri, 27 Mar 09
High-speed Signal Mixer Demonstrates Capabilities Of Transistor Laser
http://feeds.sciencedaily.com/~r/sciencedaily/~3/krNuFaIPjss/090319132925.htm
Scientists have successfully demonstrated a microwave signal mixer made from a tunnel-junction transistor laser. Development of the device brings researchers a big step closer to higher speed electronics and higher performance electrical and optical integrated circuits.
Fri, 27 Mar 09
Neuronal Cause Of 'Money Illusion': Inflation Felt To Be Not So Bad As A Wage Cut
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1fQ12SEF_Ew/090323211919.htm
Many people view a rise in their income as a good thing, even when the increase is completely negated again by inflation. Researchers have discovered the cerebro-physiological cause underlying this so-called "money illusion." This effect is of great practical relevance in that it explains, for instance, why financial policy and inflation can have a beneficial effect on employment and economic growth.
Fri, 27 Mar 09
A Venomous Tale: How Lizards Can Shed Their Tail When Predators Attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Aj-IOtTtwhU/090325170604.htm
Ecologists have answered a question that has puzzled biologists for more than a century: What is the main factor that determines a lizard's ability to shed its tail when predators attack?
Fri, 27 Mar 09
New Measurement Standard For Vitamin D May Lead To Better Bone Health
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EnljltjLWLk/090325132153.htm
In a development that could help improve the prevention and treatment of osteoporosis, rickets, and other bone-related diseases, government chemists are reporting major progress toward developing an accurate, reliable set of standards for measuring vitamin D levels in the blood.
Fri, 27 Mar 09
New Wheat Disease Could Spread Faster Than Expected
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x9NFDKqBE4U/090325132147.htm
Both plant and human diseases that can travel with the wind have the potential to spread far more rapidly than has been understood, according to a new study, in findings that pose serious concerns not only for some human diseases but also a new fungus that threatens global wheat production.
Fri, 27 Mar 09
Ovarian Cancers Detected Early May Be Less Aggressive, Questioning Effectiveness Of Screening
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nCG7XE5weiA/090324131452.htm
The biology of ovarian cancers discovered at an early stage may render them slower growing and less likely to spread than more aggressive cancers, which typically are discovered in an advanced stage, according to a new study. This finding has implications for the question of whether screening for ovarian cancer could save lives.
Fri, 27 Mar 09
Zinc Oxide Gives Green Shine To New Photoconductors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qWfOleOq7Gw/090318171158.htm
Northwestern University researchers have designed a high-performing photoconducting material that uses zinc oxide -- an environmentally friendly inorganic compound found in baby powder and suntan lotion -- instead of lead sulfide. The best performing photoconductor is based on lead sulfide nanoparticles. The new material converts light into electricity but, unlike conventional materials, also features a novel combination of attractive attributes: environmentally benign chemistry, low-cost production, a high level of detectivity, mechanical flexibility and wavelength tunability.
Fri, 27 Mar 09
Inconsistent Performance Speed Among Children With ADHD May Underlie How Well They Use Memory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wWBeylaD0Zc/090324141047.htm
Children with attention-deficit hyperactivity disorder show more variable or inconsistent responses during on "working" or short-term, memory tasks when compared with typically developing peers, a new study has found.
Fri, 27 Mar 09
Hair Structures Of Blind Cavefish Inspire New Generation Of Sensors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wMTgc6doAl4/090324101745.htm
The fish species Astyanax fasciatus cannot see, but their unique technique for sensing their environment and the movement of water around them with gel-covered hairs that extend from their bodies may inspire a new generation of sensors that perform better than current active sonar.
Fri, 27 Mar 09
Surgery Safe For Babies And Toddlers Suffering From Seizures, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w6ZXzdC71go/090323134309.htm
Surgery for babies and toddlers suffering from epilepsy is relatively safe and is effective in controlling seizures, according to a new study. The findings also show that early surgery may have a positive impact on babies' brain development.
Fri, 27 Mar 09
North West Tidal Barrages Could Provide 5% Of UK's Electricity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iOXbJdyRbgI/090325092203.htm
Engineers claim that building estuary barrages in the North West could provide more than 5% of the UK's electricity. Researchers examined ways to generate electricity from tidal sources of renewable energy in the Eastern Irish Sea. The study showed that four estuary barrages, across the Solway Firth, Morecambe Bay and the Mersey and Dee estuaries, could be capable of meeting approximately half of the North West region's electricity needs.
Fri, 27 Mar 09
South Asians With Diabetes More Likely To Lose Their Eyesight Earlier Than White Europeans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uCehyZhtkmk/090324101608.htm
South Asians with type 2 diabetes are significantly more at risk of losing their eyesight and losing it at an earlier age, compared to white Europeans with the same condition.
Fri, 27 Mar 09
Drug Used To Treat Skin Conditions Is A Marine Pollutant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-A3jvY5Wo7I/090324101612.htm
Clotrimazole is a common ingredient in over-the-counter skin creams. Recent results from research in Sweden now show that it is associated with major environmental risks. "The pharmaceuticals and chemicals in everyday use form a mixture in the ocean that has a direct impact on the growth and reproduction of organisms," says scientist Tobias Porsbring.
Thu, 26 Mar 09
Asteroid Impact Helps Trace Meteorite Origins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N5HzabwS0Bc/090325142507.htm
The car-sized asteroid that exploded above the Nubian Desert last October was the first instance of an asteroid spotted in space before falling to Earth. Researchers rushed to collect the resulting meteorite debris, and a new study reports on this first-ever opportunity to calibrate telescopic observations of a known asteroid with laboratory analyses of its fragments.
Thu, 26 Mar 09
Fructose Metabolism By The Brain Increases Food Intake And Obesity, Review Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/abSI3qJ_ZCY/090325091811.htm
Scientists have built on the suggested link between the consumption of fructose and increased food intake, which may contribute to a high incidence of obesity and type 2 diabetes.
Thu, 26 Mar 09
Fast Magnetic Fix For Sepsis? Micromagnetic-microfluidic Device Could Quickly Pull Pathogens From The Bloodstream
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kL8OgF1pyFI/090325162621.htm
An innovative new device uses magnetism to quickly pull disease pathogens out of an infected bloodstream. The device could become a first-line defense for blood infections like sepsis, which causes over 200,000 deaths in the US per year.
Thu, 26 Mar 09
Monoclonal Antibodies Primed To Become Potent Immune Weapons Against Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tf3DtjIiaZo/090320102128.htm
New research suggests that monoclonal antibody therapy of cancer can be improved to be much more powerful than it is today.
Thu, 26 Mar 09
Periodic Table's Blank Spaces Filled In By Solving A Subatomic Shell Game
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2RfDOm6CguQ/090323143912.htm
Physicists have filled in some longtime blank spaces on the periodic table, calculating electron affinities of the lanthanides, a series of 15 elements known as rare earths.
Thu, 26 Mar 09
Neuroscientists Identify Physiological Link Between Trial And Error And Learning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2Kb8Mnbm-5Q/090325132155.htm
Learning through trial and error often requires subjects to establish new physiological links by using information about trial outcome to strengthen correct responses or modify incorrect responses. New findings establish a physiological measure linking trial outcome and learning.
Thu, 26 Mar 09
Gene Exchange Common Among Sex-manipulating Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BggfTMhUxvU/090325132450.htm
Certain bacteria have learned to manipulate the proportion of females and males in insect populations. Now researchers have mapped the entire genome of a bacterium that infects a close relative of the fruit fly. The findings reveal extremely high frequencies of gene exchange within this group of bacteria. In the future sex-manipulating bacteria may be used as environmentally friendly pesticides against harmful insects.
Thu, 26 Mar 09
Anesthesia Exposure Linked To Learning Disabilities In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e6UzC2UsBrI/090324091205.htm
Researchers have found that children who require multiple surgeries under anesthesia during their first three years of life are at higher risk of developing learning disabilities later.
Thu, 26 Mar 09
When Intestinal Bacteria Go Surfing: Molecular Signal Pathway In Diarrhea Illnesses Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/42GW1zsZlg8/090319102311.htm
The bacterium Escherichia coli is part of the healthy human intestinal flora. However, E. coli also has pathogenic relatives that trigger diarrhea illnesses: enterohemorrhagic E.coli bacteria. During the course of an infection they infest the intestinal mucosa, causing injury in the process, in contrast to benign bacteria.
Thu, 26 Mar 09
Genetic Link To Blood Cancers Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tVAQvCU56cU/090320092247.htm
A new study has shown that susceptibility to a series of blood cancers, known as myeloproliferative disorders (MPDs), is linked to a particular area of the patient's DNA, which is prone to developing mutations.
Thu, 26 Mar 09
Bees Prefer Shortest Distance Between Two Flowers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/stcVq2x4Bj8/090321103809.htm
Honeybees and bumble bees are predictable in the way they move among flowers, typically moving directly from one to another in the same row of plants. The bees' flight paths affect their ability to hunt for pollen and generate "gene flow," fertilization and seed production that results when pollen moves from one plant to another. The study of gene flow has increased due to the introduction of genetically modified organisms into the environment.
Thu, 26 Mar 09
Synthetic Biology: The Next Biotech Revolution Is Brewing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6g9WObGrSqU/090325091809.htm
The safety of early applications of synthetic biology may be adequately addressed by the existing regulatory framework for biotechnology, especially in contained laboratories and manufacturing facilities. But further advances in this emerging field are likely to create significant challenges for US government oversight, according to a new report. Synthetic biology promises major advances in areas such as biofuels, specialty chemicals, and agriculture and drug products.
Thu, 26 Mar 09
Forget It! A Biochemical Pathway For Blocking Your Worst Fears?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U_mWFt3Ve3s/090324171422.htm
A receptor for glutamate, the most prominent neurotransmitter in the brain, plays a key role in the process of "unlearning," report researchers at the Salk Institute for Biological Studies. Their findings could eventually help scientists develop new drug therapies to treat a variety of disorders, including phobias and anxiety disorders, particularly post-traumatic stress disorder.
Thu, 26 Mar 09
Therapeutic Cloning Gets A Boost With New Research Findings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tQyZ9I5OM0k/090325091805.htm
New research offers the first direct demonstration that cloning by somatic cell nuclear transfer does not lead to an increase in the frequency of point mutations.
Thu, 26 Mar 09
Chemists Create More Efficient Palladium Fuel Cell Catalysts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2Zmrr2H1Az8/090319102321.htm
Chemists have overcome a challenge to fuel cell reactions using palladium catalysts. The scientists produced palladium nanoparticles with about 40 percent greater active surface area than commercially available palladium particles, and the nanoparticles remain intact four times longer.
Thu, 26 Mar 09
Heart Bypass Surgery Better Than Angioplasty For Certain Patients, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x6Z64D0jCgA/090319203850.htm
Results of a new study that involved data from almost 8,000 patients show that for patients suffering from multi-vessel coronary artery disease who have diabetes and for patients older than 65, coronary artery bypass graft may be a better treatment choice than percutaneous coronary intervention (commonly known as coronary angioplasty), the technique of using balloons or stents to widen obstructed blood vessels. In patients 55 years and younger, PCI may be the best choice.
Thu, 26 Mar 09
How Salmonella Survives In Environment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7RgATznWDWs/090323101817.htm
Scientists have demonstrated how a single-celled organism, living freely in the environment, could be a source of Salmonella transmission to animals and humans.
Thu, 26 Mar 09
Design Revolution: How Manufacturers Could Reduce Costs By Simply Designing For Reliability
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-VSvXluZm0Q/090324101606.htm
A revolutionary approach to the design of consumer products -- from automobiles to plasma TVs -- could cut manufacturers' warranty costs significantly. Writing in a forthcoming issue of the International Journal of Six Sigma and Competitive Advantage, US researchers explain how manufacturers should simply design for reliability.
Thu, 26 Mar 09
New Anti-cancer Drug: 200 Times More Active In Killing Tumor Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d5Rsg_GnkK0/090325132458.htm
A team of researchers from the US, Europe, Taiwan and Japan has engineered a new anti-cancer agent that is about 200 times more active in killing tumor cells than similar drugs used in recent clinical trials.
Thu, 26 Mar 09
Early Brain Marker For Familial Form Of Depression: Structural Changes In Brain's Cortex
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pxCgjESOWcQ/090324081437.htm
Findings from one of the largest-ever imaging studies of depression indicate that a structural difference in the brain -- a thinning of the right hemisphere -- appears to be linked to a higher risk for depression, according to new research.
Thu, 26 Mar 09
Software Fits Flexible Components
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oXFx6F4r45Q/090323093127.htm
Can the newly designed dashboard be easily installed? What paths should the assembly robot take so that the cables do not hit against the car body? A new software program simulates assembly paths and also factors in the pliability of components.
Thu, 26 Mar 09
Paradigm Shift In Immune Response Regulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s1GIz28QOyM/090319132950.htm
Over the past decade various pieces of the puzzle how signal transmission controls immunity have been coming together. Now, scientists report a paradigm shift in the regulation of immune response. Their results show that interaction with a linear ubiquitin chain is crucial for nuclear factor kappa B activation. Their findings may also contribute towards structure-based drug design to target the defective NF-kappa-B pathway in diseases such as cancer, inflammation and immunodeficiency.
Thu, 26 Mar 09
Climate Change Found To Have Paradoxical Effects In Coastal Wetlands
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jV-fyUAheRI/090323212035.htm
Rising atmospheric carbon dioxide is largely responsible for recent global warming and the rise in sea levels. However scientists have found that this same increase in carbon dioxide may ironically counterbalance some of its negative effects on one of the planet's most valuable ecosystems -- wetlands.
Thu, 26 Mar 09
E-waste Reduced By Fees At Time Of Purchase, According To Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7mFAs1EVF1g/090325162638.htm
The large amount of waste that follows the sale of computers and electronics is reduced when states charge consumers a fee at the time of sale, according to a new study.
Wed, 25 Mar 09
Deep-sea Rocks Point To Early Oxygen On Earth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NzG7e9k54j0/090324131458.htm
Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologists.
Wed, 25 Mar 09
Abnormal EKG Can Predict Death In Stroke Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fzXIyT3Rv3Q/090320092104.htm
People who suffer an ischemic stroke and also have an abnormality in the heart's electrical cycle are at a higher risk of death within 90 days than people who do not have abnormal electrical activity at the time of emergency treatment, according to new research.
Wed, 25 Mar 09
Atomic Fountain Clocks Are Becoming Still More Stable
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OhLdYh5W2GU/090318090148.htm
Atomic fountain clocks are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a certain measurement time.
Wed, 25 Mar 09
Right Warfarin Dose Determined By Three Genes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lyX9a9zq-ys/090319224522.htm
Researchers have now found all the genes the determine the dosage of the blood-thinning drug warfarin.
Wed, 25 Mar 09
Cloud Computing Helps Scientists Run High Energy Physics Experiments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_3okyBHoMaY/090324131552.htm
A novel system is enabling high energy physicists at CERN in Switzerland, to make production runs that integrate their existing pool of distributed computers with dynamic resources in "science clouds."
Wed, 25 Mar 09
Naltrexone Can Help Heavy Social Drinkers Quit Smoking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wEvlfopgZTc/090319161458.htm
Naltrexone, an opioid antagonist approved in 1994 by the US Food and Drug Administration for alcohol-dependence treatment, can reduce relapse rates among AD patients. Research on naltrexone's effectiveness on nicotine dependence is less clear, although researchers believe it may be helpful for specific smoker subgroups. A new study has found that naltrexone can help non-AD smokers who drink heavily on a social basis.
Wed, 25 Mar 09
New Possibilities For Hydrogen-producing Algae
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l6OEyvZHnrY/090324171556.htm
Photosynthesis produces the food that we eat and the oxygen that we breathe -- could it also help satisfy our future energy needs by producing clean-burning hydrogen? Researchers studying a hydrogen-producing, single-celled green alga, Chlamydomonas reinhardtii, have unmasked a previously unknown fermentation pathway that may open up possibilities for increasing hydrogen production.
Wed, 25 Mar 09
Social Isolation Makes Strokes More Deadly, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2mhEY8DU9Ec/090323212019.htm
New research in mice suggests that social isolation may promote more damaging inflammation in the brain during a stroke. Researchers found that all the male mice that lived with a female partner survived seven days after a stroke, but only 40 percent of socially isolated animals lived that long.
Wed, 25 Mar 09
Touch Helps Make The Connection Between Sight And Hearing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6KQUjcJXRME/090318112937.htm
The sense of touch allows us to make a better connection between sight and hearing and therefore helps adults to learn to read. These results should improve learning methods, both for children learning to read and adults learning foreign languages.
Wed, 25 Mar 09
'Less Is More' When It Comes To Treating High Blood Pressure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JbwmxEhnfBI/090319142431.htm
A newly published study found patients actually have more control of their high blood pressure (hypertension) when treated with less medication. The study recommends a simplified and more effective method of treating hypertension using low doses of single pill combinations, rather than multiple pills.
Wed, 25 Mar 09
Licorice Compound Offers New Cancer Prevention Strategy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_1RUlof706s/090324081433.htm
A chemical component of licorice may offer a new approach to preventing colorectal cancer without the adverse side effects of other preventive therapies, researchers report.
Wed, 25 Mar 09
The Brain Maintains Language Skills In Spite Of Alcohol Damage By Drawing From Other Regions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d-DK8SDmb1I/090319161501.htm
Researchers know that alcoholism can damage the brain's frontal lobes and cerebellum, regions involved in language processing. Nonetheless, alcoholics' language skills appear to be relatively spared from alcohol's damaging effects. New findings suggest the brain maintains language skills by drawing upon other systems that would normally be used to perform other tasks simultaneously.
Wed, 25 Mar 09
Evolution Of Fins And Limbs Linked With That Of Gills
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YzejWHhHeQg/090323212021.htm
The genetic toolkit animals use to build fins and limbs is the same one that controls the development of part of the gill skeleton in sharks. Also, the skeleton of any animal appendage is probably patterned by the developmental genetic program that regulates the formation of shark gills. This finding is consistent with an old theory, often discounted in textbooks, that fins and (later) limbs evolved from the gills of an extinct vertebrate.
Wed, 25 Mar 09
Auditory Regions Of Brain Convert To Sense Of Touch, Hearing Loss Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tr3rjuI1GfM/090324111600.htm
Researchers have discovered that adult animals with hearing loss actually re-route the sense of touch into the hearing parts of the brain.
Wed, 25 Mar 09
Why We Have Difficulty Recognizing Faces In Photo Negatives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UAlvroMTxmg/090318171204.htm
Humans excel at recognizing faces, but how we do this has been an abiding mystery in neuroscience and psychology. In an effort to explain our success in this area, researchers are taking a closer look at how and why we fail. A new study looks at a particularly striking instance of failure: our impaired ability to recognize faces in photographic negatives.
Wed, 25 Mar 09
Epigenetic Mark Guides Stem Cells Toward Their Destiny
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RzQPDnUWFU0/090319132921.htm
Scientists have uncovered a gene control mechanism that guides the development and differentiation of epidermal skin stem cells in mouse embryos, and shown that this mechanism tempers the development of the skin barrier. The findings provide insights that could lead to therapeutic advance in treating prematurely born infants who have not yet fully formed the skin.
Wed, 25 Mar 09
Wild Bees Can Be Effective Pollinators
http://feeds.sciencedaily.com/~r/sciencedaily/~3/72aPRU4LfTA/090324131550.htm
A three-year study of 15 southwestern Michigan blueberry farms found 112 wild bee species which were active during the blueberry blooming period. Many of these species visit more flowers per minute and deposit more pollen per visit than honey bees, and they are not affected by colony collapse disorder.
Wed, 25 Mar 09
Increased Risk Of Injury Even After First Alcoholic Drink
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HxCjnIzaytM/090323093015.htm
Most alcohol-related damage occurs after moderate consumption, according to new research. Physical injury related to alcohol consumption causes substantial costs to society. But while the link between severe intoxication, road accidents and violence is well-known, the consequences of "normal" drinking are much less researched.
Wed, 25 Mar 09
Super-sized Supernova: Scientists Observe Largest Exploding Star Yet Seen
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6GQMa4SBtYg/090323092717.htm
In the first observation if its kind, scientists have watched what happens when a star the size of 50 suns explodes. As they continued to track the spectacular event, they found that most of the star's mass collapsed in on itself, resulting in a large black hole.
Wed, 25 Mar 09
Discovery May Result In New Test To Determine Predisposition To Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aXtBb7EcPuE/090325091836.htm
Researchers have developed an assay that may be used to help identify new genes that can predict a predisposition to cancer.
Wed, 25 Mar 09
Swimming Pool Game 'Marco Polo' Used To Develop Robot Control
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9p9tgkENfmQ/090318140614.htm
Scientists have used a popular kids swimming pool game to guide their development of a system for controlling moving robots that can autonomously detect and capture other moving targets.
Wed, 25 Mar 09
Omega-3 Fatty Acids Reduce Risk Of Advanced Prostate Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yeTEHNkzHTg/090324131444.htm
Omega-3 fatty acids appear protective against advanced prostate cancer, and this effect may be modified by a genetic variant in the COX-2 gene, according to a report in Clinical Cancer Research.
Wed, 25 Mar 09
Inorganic Chameleon Show Promise In Energy And Nano Research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T4ckPLxES-0/090323161227.htm
The multifaceted material perovskite could be of benefit in three key applications: fuel cells, gas separation prior to the storage of carbon dioxide and nanocomponents in electronic products. Consequently, the material can be of significance to both energy systems of the future and the development of nanoelectronics, according to new research.
Wed, 25 Mar 09
Listening To Pleasant Music Could Help Restore Vision In Stroke Patients, Suggests Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wmPcfGiIcYw/090323212120.htm
Patients who have lost part of their visual awareness following a stroke can show an improved ability to see when they are listening to music they like, according to a new study.
Wed, 25 Mar 09
Deep-sea Corals May Be Oldest Living Marine Organism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6ZC2wmAJoi4/090324091209.htm
Deep-sea corals from about 400 meters off the coast of the Hawaiian Islands are much older than once believed and some may be the oldest living marine organisms known to man. Researchers have determined that two groups of Hawaiian deep-sea corals are far older than previously recorded.
Wed, 25 Mar 09
Vaccine To Prevent Colon Cancer Being Tested In Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_ucUWx7yFlo/090319132927.htm
Researchers have begun testing a vaccine that might be able to prevent colon cancer in people at high risk for developing the disease. If shown to be effective, it might spare patients the risk and inconvenience of repeated invasive surveillance tests, such as colonoscopy, that are now necessary to spot and remove precancerous polyps.
Wed, 25 Mar 09
Lab-on-a-chip Homes In On How Cancer Cells Break Free
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4xPX8xDQaq0/090318122004.htm
Engineers have invented a method to help figure out how cancer cells break free from neighboring tissue, an "escape" that can spread the disease to other parts of the body.
Wed, 25 Mar 09
New Theoretical Model Of Tumor Growth And Metastasis Based On Differences In Tissue Pressure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t1hd4C8FIsQ/090323143902.htm
A new article describes a theoretical model of tumor growth and metastasis based on differences in tissue pressure.
Wed, 25 Mar 09
Scientists Cable Seafloor Seismometer Into California's Earthquake Network
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yE--vs3xzDU/090319102423.htm
Earthquake monitoring stations are almost always on land, but what about the 70 percent of the Earth's surface under water? California's first permanent seafloor seismic station has now been linked real-time into the Northern California seismic network, allowing scientists to get a more complete picture of the state's fault system -- especially the San Andreas Fault, which runs along the coast.
Wed, 25 Mar 09
New View Of The Way Young Children Think
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A4_IaiZL5vw/090324131554.htm
For parents who have found themselves repeating the same warnings or directions to their toddler over and over to no avail, new research offers them an answer as to why their toddlers don't listen to their advice: they're just storing it away for later.
Wed, 25 Mar 09
Brain Wave Patterns Can Predict Blunders, New Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DbQ94HxD5lo/090323122439.htm
Everyone makes an occasional error due to lack of attention. Now scientists have found a distinct electric signature in the brain which predicts that such an error is about to be made. The discovery could prove useful in a variety of applications, from developing monitoring devices that alert air traffic control operators that their attention is flagging, to devising and monitoring new strategies to help children cope with attention deficit hyperactivity disorder.
Wed, 25 Mar 09
To Fight Drug Addiction, Researchers Target The Brain With Nanoparticles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6RY0cchF8R0/090324101747.htm
A precise, new nanotechnology treatment for drug addiction may be on the horizon. Scientists have developed a stable nanoparticle that delivers short RNA molecules in the brain to "silence" or turn off a gene that plays a critical role in many kinds of drug addiction.
Wed, 25 Mar 09
Device Provides Household Energy Savings of 12%
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lJ3kGuiY22I/090318090348.htm
A new device, which disconnects electronic appliances in stand-by mode and reduces their power consumption to zero, will provide household energy savings of 12%.
Wed, 25 Mar 09
Protein Is Key To Embryonic Stem Cell Differentiation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T_4fyGIiNmg/090318140528.htm
Investigators have learned that a protein called Shp2 plays a critical role in the pathways that control decisions for differentiation or self-renewal in both human embryonic stem cells and mouse embryonic stem cells.
Wed, 25 Mar 09
Tobacco Makes Medicine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4Q8auWAEtKQ/090318211236.htm
Tobacco isn't famous for its health benefits. But now scientists have succeeded in using genetically modified tobacco plants to produce medicines for several autoimmune and inflammatory diseases, including diabetes.
Wed, 25 Mar 09
Codeine Use And Accident Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9ngNt8YlPFM/090324101749.htm
The risk of being involved in a traffic accident with personal injury is significantly higher among codeine users than non-users. However, sporadic or moderate use of codeine alone does not carry an increased risk, according to a new study from Norway.
Wed, 25 Mar 09
Earliest Evidence Of Domesticated Maize Discovered: Dates Back 8,700 Years
http://feeds.sciencedaily.com/~r/sciencedaily/~3/srH-1_9ggb4/090323212037.htm
Maize was domesticated from its wild ancestor more than 8,700 years according to biological evidence uncovered by researchers in the Mexico's Central Balsas River Valley. This is the earliest dated evidence -- by 1,200 years -- for the presence and use of domesticated maize.
Wed, 25 Mar 09
Intensively Lowering Blood Glucose In Critically Ill Patients Increases The Risk Of Death, Trial Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_O9ApMnQuwE/090324101604.htm
The current practice of intensively lowering blood glucose in critically ill patients increases the risk of death by 10 percent. Results of the largest trial of intensive glucose lowering in critically ill patients indicate that international clinical guidelines need urgent review.
Wed, 25 Mar 09
Electronic Nose Sniffs Hazards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VbaUgyOiZig/090318090138.htm
An advanced sensor and data processing used to monitor air quality inside space station is now being used in an innovative fire protection system for Stockholm's metro system.
Wed, 25 Mar 09
Preterm Birth Rate Drops
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b1YGVKs0onU/090318140620.htm
The rate of preterm births (less than 37 weeks gestation) dropped to 12.7 percent in 2007 from 12.8 percent in 2006, a small but statistically significant decrease. the March of Dimes hopes the finding will prove to be the start of a new trend in improved maternal and infant health. The preterm birth rate declined for babies born at 34-36 weeks gestation (late preterm) and among babies born to African American and white women.
Wed, 25 Mar 09
Taking The Conversation Inside: Enhancing Signals In Cell Interior
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G6CEKT-Ebv4/090319132917.htm
Scientists used to think most of the exchange of information between cells was conducted at the surface, where cell receptors receive signals from other cells. Now researchers have discovered how a switching station beneath the cell surface is crucial to processing signals from outside the cell.
Wed, 25 Mar 09
Extensive Patient Sharing Among Hospitals Could Impact Spread Of Infectious Diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Hp9Xtmr9zCc/090319102307.htm
A renowned research expert on infectious disease and epidemiology has released a new study on patient sharing and how to track and prevent the spread of infectious disease.
Wed, 25 Mar 09
'Master Regulator' Of Skin Formation Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/56vjmtSOR-c/090324171608.htm
Researchers have found one gene in the human body that appears to be a master regulator for skin development, in research that could help address everything from skin diseases such as eczema or psoriasis to the wrinkling of skin as people age.
Wed, 25 Mar 09
Epilepsy: Seizures Caused By Intractable Epilepsy Reduced By More Than 50 Percent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DSd93DoETKk/090318140616.htm
A unique nerve-stimulation treatment called trigeminal nerve stimulation reduced the number of seizures over 50 percent. The results, though preliminary, are very encouraging.
Wed, 25 Mar 09
Cancer Medication? Potential Tumor Suppressor Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z0_WxhX7wBY/090318090144.htm
The Myc-gene plays an important role in cell regulation; in about 50% of all tumors this gene is mutated. Scientists have shown that the gene BASP1 specifically inhibits the effect of this oncogene, thereby preventing uncontrolled cell growth which is typical for tumors.
Wed, 25 Mar 09
Regulatory Molecule For Tumor Formation Or Suppression Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aVImg8Vvuc4/090317153041.htm
One of the small regulatory molecules, named microRNA-125b, is a novel regulator of p53, an important protein that safeguards cells against cancers, scientists report.
Wed, 25 Mar 09
Pilot Study Shows Effectiveness Of New, Low-cost Method For Monitoring Hand Hygiene Compliance
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gTgNj1HOa7Q/090318085926.htm
Epidemiologists and computer scientists have created a new low-cost, green technology for automatically tracking the use of hand hygiene dispensers before healthcare workers enter and after they exit patient rooms. This novel method of monitoring hand hygiene compliance will help with the essential priority of infection control in hospitals.
Wed, 25 Mar 09
Black Girls Are 50 Percent More Likely To Be Bulimic Than White Girls
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MPwb-ABy3W8/090318140532.htm
An important new study challenges the widespread perception that bulimia primarily affects privileged, white teenagers such as "Gossip Girl" character Blair Waldorf, who battled bulimia on a television show earlier this season. Rather, girls who are African American are 50 percent more likely than girls who are white to be bulimic, the researchers found.
Tue, 24 Mar 09
'Ice That Burns' May Yield Clean, Sustainable Bridge To Global Energy Future
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VV7chFlBAe8/090323143858.htm
In the future, natural gas derived from chunks of ice that workers collect from beneath the ocean floor and beneath the arctic permafrost may fuel cars, heat homes, and power factories. Government researchers are reporting that these so-called "gas hydrates," a frozen form of natural gas, show increasing promise as an abundant, untapped source of clean, sustainable energy.
Tue, 24 Mar 09
Human Adult Testes Cells Can Become Embryonic-like
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RaKMx-zXmgc/090323134307.htm
Using what they say is a relatively simple method, scientists have extracted stem/progenitor cells from testes and have converted them back into pluripotent embryonic-like stem cells. Researchers say that the naïve cells are now potentially capable of morphing into any cell type that a body needs, from brain neurons to pancreatic tissue.
Tue, 24 Mar 09
Synthesizing The Most Natural Of All Skin Creams
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8lbqPt6xvVc/090317095032.htm
New research could help millions of people with skin problems. Even after nine months soaking in the womb, a newborn’s skin is smooth – unlike an adult’s in the bath. While occupying a watery, warm environment, the newborn manages to develop a skin fully equipped to protect it in a cold, dry and bacteria-infected world.
Tue, 24 Mar 09
Biological Clue In Brain Tumor Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gQm9V0t3xbk/090318104326.htm
Scientists have uncovered a vital new biological clue that could lead to more effective treatments for a children's brain tumor that currently kills more than 60 percent of young sufferers.
Tue, 24 Mar 09
Slimmer, Stickier Nanorods Give Boost To 3-D Computer Chips
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eaWAwHfL0I4/090317125232.htm
Researchers have developed a new technique for growing slimmer copper nanorods, a key step for advancing integrated 3-D chip technology. These thinner copper nanorods fuse together, or anneal, at about 300 degrees Celsius. This relatively low annealing temperature could make the nanorods ideal for use in heat-sensitive nanoelectronics, particularly for "gluing" together the stacked components of 3-D computer chips.
Tue, 24 Mar 09
Suicide Bombings: Exact Location Where A Person Stands Makes A Difference
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eHcfSXB9_pA/090323161125.htm
Researchers have determined that where a person is standing in a room or other location during a suicide terrorist attack can have a great bearing on survival and injuries.
Tue, 24 Mar 09
Cancer Breakthrough: Tales Of 'Trojan Horse Drug' And 'Miracle Dogs'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4k0kuBxwT8I/090323143856.htm
Scientists are reporting promising results with a drug called nitrosylcobalamin (NO-Cbl) in battling cancer in dogs without any negative side effects. While it gives profound hope to dog owners, NO-Cbl also points to a powerful new cancer treatment for humans -- one that infiltrates cancer cells like a biological Trojan horse.
Tue, 24 Mar 09
Heightened Level Of Amygdala Activity May Cause Social Deficits In Autism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1CYlfq31R2c/090319132956.htm
An increased pattern of brain activity in the amygdalas of adults with autism that may be linked to the social deficits that typically are associated with the disorder. Previous research has shown that abnormal growth patterns in the amygdala are commonly found among young children diagnosed with autism.
Tue, 24 Mar 09
Fuzzy Logic And Grey Science
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dydV6nzSZHA/090317095030.htm
Identifying cancer cells in a medical image and altering the trajectory of airplanes at take-off and landing to reduce noise pollution are just two of the goals of new research projects based on the use of fuzzy logic. This mathematical technique, which emerged in the 1960s and is now widely used in industrial control systems and electrical appliances, is central to the development of artificial intelligence and can also be used to quantify the vagueness of qualitative concepts.
Tue, 24 Mar 09
Human Genes Required For Hepatitis C Viral Replication Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UZ1382tr1nI/090318140516.htm
Researchers are investigating a new way to block reproduction of the hepatitis C virus -- targeting not the virus itself but the human genes the virus exploits in its life cycle. They report finding nearly 100 genes that support the replication of HCV and show that blocking several of them can suppress viral replication in cultured cells.
Tue, 24 Mar 09
Motor Proteins May Be Vehicles For Drug Delivery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HBVjwGxqGmw/090320131517.htm
Specialized motor proteins that transport cargo within cells could be turned into nanoscale machines for drug delivery, according to bioengineers. Chemical alteration of the proteins' function could also help inhibit the growth of cancerous tumors.
Tue, 24 Mar 09
Fear Or Romance Could Make You Change Your Mind, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A4EFXSAPiXg/090323134313.htm
New research suggests that the effectiveness of common persuasion tactics can be dramatically altered by two primal emotions -- fear and romantic desire.
Tue, 24 Mar 09
Eating Red And Processed Meat Associated With Increased Risk Of Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iMAztGLMvqs/090323161109.htm
Individuals who eat more red meat and processed meat appear to have a modestly increased risk of death from all causes and also from cancer or heart disease over a 10-year period, according to a new article. In contrast, a higher intake of white meat appeared to be associated with a slightly decreased risk for overall death and cancer death.
Tue, 24 Mar 09
Gulf War Veterans Display Abnormal Brain Response To Specific Chemicals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IukaT6mXGNE/090323092800.htm
Scientists have pinpointed damage inside the brains of veterans suffering from Gulf War syndrome -- a finding that links the illness to chemical exposures and may lead to diagnostic tests and treatments.
Tue, 24 Mar 09
Augmented Reality Under Water
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5aOmh6iZNYc/090317095028.htm
Scientists have created an Augmented Reality system for use under water. A diver's mask with a special display lets the diver see his or her real submarine surroundings overlaid with computer-generated virtual scenes. In the pilot application, an AR game, the player sees a coral reef with shoals, mussels and weeds, instead of a plain indoor pool. Applications for professional divers are being investigated.
Tue, 24 Mar 09
Dance By Protein Linked To Parkinson's And Alzheimer's Diseases Reveals Unprecedented Twists And Turns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cO-5HS7q5VI/090316173423.htm
Much remains to be understood about what role alpha-synuclein, a protein mostly associated with Parkinson's disease, plays in the brain, either in a normal or diseased state. Researchers have now used high-sensitivity single-molecule methods to show that it is a highly mobile protein, and can rapidly switch shapes depending on its environment.
Tue, 24 Mar 09
No Small Measure: Origins Of Nanorod Diameter Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZSnxfq3vmpA/090319111330.htm
A new study answers a key question at the very heart of nanotechnology: Why are nanorods so small? Researchers have discovered the origins of nanorod diameter, demonstrating that the competition and collaboration among various mechanisms of atomic transport hold the key to nanorod size. The researchers say it is the first study to identify the fundamental reasons why nearly all nanorods have a diameter on the order of 100 nanometers.
Tue, 24 Mar 09
Stroke Survivors Improve Balance With Tai Chi
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KCMj0AXVnTc/090323110458.htm
A new study of stroke survivors found they did better at balance control after practicing tai chi than did a control group doing more conventional exercises. Tai chi requires no equipment and can be practiced at home, making it an inexpensive form of therapy.
Tue, 24 Mar 09
No More Cold Sores? Scientists Find Cellular Process That Fights Herpes Virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KuBuPJiYZPo/090323112058.htm
Scientists have discovered a new way for our immune system to combat the elusive virus responsible for cold sores: type 1 herpes simplex. A group of virus hunters has identified a cellular process that seeks out and fights herpes.
Tue, 24 Mar 09
Increasing Number Of Americans Have Insufficient Levels Of Vitamin D
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ywv6xqqm4Oc/090323161111.htm
Average blood levels of vitamin D appear to have decreased in the United States between 1994 and 2004, according to a new article.
Tue, 24 Mar 09
Magnetic Properties Of Iron-based Superconductors Explored
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5TISm2-UcLI/090316133433.htm
Scientists have proposed theoretical models to explain the normal magnetic properties in iron-based superconductors. This research builds on earlier work by the same scientists proposing a theoretical model for superconductivity in newly discovered iron-based superconductors.
Tue, 24 Mar 09
Lung Cancer: Molecular Scissors Determine Therapy Effectiveness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KskWVbqnkw8/090317111900.htm
Metastasizing cancer cells use a kind of molecular scissors to cut a trail for the cancer when it invades surrounding tissue. Scientists have now shown that this cutting tool, called u-PAR, might be an indicator of therapy effectiveness in non-small cell lung cancer: the more u-PAR tumor cells produce, the less the anti-cancer drug cetuximab is effective.
Tue, 24 Mar 09
Understanding Channel-Like Erosion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wKL6hQ4ZWLI/090320164313.htm
A new article examines how groundwater flow beneath the surface of the earth impacts the rate of erosion. The topic has local interest because it has recently been observed that significant erosion is occurring on New Orleans area levees primarily caused by seepage driven flow.
Tue, 24 Mar 09
Public Nuisance Laws Can Control Damage To Ecosystems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ihmpix95EBo/090319111436.htm
Scientists and legal experts in the U.K. have found a legal route to limit damage to the environment -- such as uncontrolled scallop dredging, using the common law of public nuisance. They have shown that the use of 'ecosystem services' can extend the reach of the common law. This can support public nuisance actions relating to damage to ecosystems, and assist in framing legal action to resist the damage or claim compensation.
Tue, 24 Mar 09
New 'Green' Pesticides Are First To Exploit Plant Defenses In Battle Of The Fungi
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZkNj-wjawR0/090323110447.htm
Exploiting a little-known punch/counterpunch strategy in the ongoing battle between disease-causing fungi and crop plants, scientists in Canada are reporting development of a new class of "green" fungicides that could provide a safer, more environmentally-friendly alternative to conventional fungicides.
Tue, 24 Mar 09
New TB Test Developed That Will Dramatically Cut Diagnosis Time
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_wlkuyjUB9o/090319132952.htm
Researchers have developed an on-site method to quickly diagnose tuberculosis (TB) and expose the deadly drug-resistant strains that can mingle undetected with treatable TB strains. Tiny viruses are engineered to inject TB bacteria with green-glowing protein for a fast, on-site diagnosis.
Tue, 24 Mar 09
Fish Health Claims May Cause More Environmental Harm Than Good, Researchers Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iRDsyLyBJFo/090317142843.htm
The health benefits of fish consumption have been over-dramatized and have put increased pressure on wild fish, according to a new research.
Tue, 24 Mar 09
New Tumor Markers Determine Therapy Intensity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4w4ulVztxpQ/090317125215.htm
Characteristic changes in the DNA of medulloblastoma, the most frequent malignant brain tumor in childhood, indicate precisely how aggressively the tumor will continue to spread and what the chances of disease relapse are. Researchers have discovered this correlation. With this new set of tumor markers, the intensity of treatment can be adjusted individually and the potentially damaging effects reduced.
Tue, 24 Mar 09
'Delicious' New Grape Debuts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fU0O639VcTo/090321103807.htm
Researchers have introduced "Delicious," a new muscadine grape cultivar. "Delicious" ripens early, produces high yields and is disease-resistant. The black fruit features exceptional taste and texture with an edible skin, making it well-suited for fresh fruit consumption and the potential for wine production. The name "Delicious" was selected based on the comments of vineyard visitors who sampled the fruit.
Tue, 24 Mar 09
Physical Abuse Raises Women's Health Costs Over 40 Percent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vm_3bkWw31s/090323110454.htm
Women experiencing physical abuse from intimate partners spent 42 percent more on health care per year than non-abused women, according to a long-term study of more than 3,000 women. And the costs don't end when the abuse does. The study revealed that women who suffered physical abuse five or more years earlier still spent 19 percent more per year on health care than women who were never abused.
Tue, 24 Mar 09
Gliding Bristletails Give Clues On Evolution Of Flight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Rk2epyTWKjc/090319165141.htm
Biologists are providing new insights on the evolution of winged flight. The scientists observed how arboreal bristletails -- evolutionary precursors to insects -- in the Amazon Forest can leap tree trunk to tree trunk by manipulating a filament on their bodies as a primitive rudder system.
Tue, 24 Mar 09
6.5 Million More Patients Might Benefit From Statins To Prevent Heart Attacks, Strokes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ruITpl2bMLw/090318171202.htm
Millions more patients could benefit from taking statins, drugs typically used to prevent heart attacks and strokes, than current prescribing guidelines suggest, Johns Hopkins doctors report in a new study.
Tue, 24 Mar 09
Flies May Spread Drug-resistant Bacteria From Poultry Operations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/59pA7SIFd_c/090316120846.htm
Researchers found evidence that houseflies collected near broiler poultry operations may contribute to the dispersion of drug-resistant bacteria and thus increase the potential for human exposure to drug-resistant bacteria. The findings demonstrate another potential link between industrial food animal production and exposures to antibiotic resistant pathogens.
Tue, 24 Mar 09
Obesity Gene Associated With Susceptibility To Polycystic Ovary Syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NarrbyK5MnQ/090316191137.htm
Researchers have shown that a gene implicated in the development of obesity is also associated with susceptibility to polycystic ovary syndrome. The FTO gene has recently been shown to influence a person's predisposition to obesity, and is now the first gene to be associated convincingly with susceptibility to PCOS.
Tue, 24 Mar 09
Maggot Therapy Similar To Standard Care For Leg Ulcers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FMLG6OMu1rc/090319224534.htm
Larval (maggot) therapy has similar health benefits and costs compared with a standard treatment for leg ulcers, find two studies.
Tue, 24 Mar 09
Drug Being Used To Improve Cognition Affects Dopamine, Suggesting Potential For Abuse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qGBEIlDxzWM/090317162840.htm
Preliminary research in healthy men suggests that the narcolepsy drug modafinil, increasingly being used to enhance cognitive abilities, affects the activity of dopamine in the brain in a way that may create the potential for abuse and dependence, according to a new study.
Tue, 24 Mar 09
New Stem Cell Therapy May Lead To Treatment For Deafness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IZIllklV3sg/090323093129.htm
Researchers have successfully isolated human auditory stem cells from fetal cochleae (the auditory portion of the inner ear) and found they had the capacity to differentiate into sensory hair cells and neurons.
Tue, 24 Mar 09
Potential Target For Cancer, Wound Healing And Fibrosis Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cjWkw4VRkrA/090318162622.htm
New research provides insights that may help scientists design novel approaches to control wound healing and fight diseases such as cancer and fibrosis.
Tue, 24 Mar 09
Dancing 'Adatoms' Help Chemists Understand How Water Molecules Split
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sBwKaUzsF9M/090316133442.htm
Single oxygen atoms dancing on metal oxide have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a chemical reaction that had previously only been talked about. The scientists made the discovery while studying the basics of how titanium dioxide -- a compound sometimes found in sunscreen -- breaks down water, reactions that are central to processes such as hydrogen production, decomposing pollutants, and solar energy.
Tue, 24 Mar 09
Steroid Nasal Wash Appears To Improve Health Of Patients With Chronic Rhinosinusitis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b328j94PIJg/090316173325.htm
A nasal wash containing the corticosteroid budesonide appears to reduce symptoms of chronic rhinosinusitis without suppressing the function of the adrenal glands, a known complication of this type of drug that would indicate absorption throughout the whole body, according to a new report.
Tue, 24 Mar 09
Vigilant Windows Know The Difference Between A Would-be Robber And A Neighborhood Cat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BvFij886vuU/090317095024.htm
Is someone sneaking around in front of the window trying to break in? Windows and doors are now being sensitized to suspicious movements: they can detect whether and how quickly something is moving. If it is a person, the system sounds an alarm.
Tue, 24 Mar 09
Effects Of Stress Last For Life In Birds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XoV4utI5ehU/090317201137.htm
Researchers have discovered the first direct evidence that exposure to stress in young birds affects the way they react to stress when adult. This research greatly improves our understanding of how the environment during development influences birds' subsequent physiology, health and survival.
Tue, 24 Mar 09
Artificial Genetics: New Type Of DNA Has 12 Chemical Letters Instead Of Usual 4
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZnIWUBArDgE/090323122437.htm
In a dramatic rewrite of the recipe for life, scientists from Florida describe the design of a new type of DNA with 12 chemical letters instead of the usual four. This artificial genetic system already is helping to usher in the era of personalized medicine for millions of patients with HIV, hepatitis and other diseases, they say.
Tue, 24 Mar 09
Genomic Fossils In Lemurs Shed Light On Origin And Evolution Of HIV And Other Primate Lentiviruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zhkh7az0i68/090319224524.htm
A retrovirus related to HIV became stably integrated into the genome of several lemurs around 4.2 million years ago, according to new research. The analysis of prosimian immunodeficiency virus offers new insights into the evolution of lentiviruses.
Tue, 24 Mar 09
Superbug Complicates Treatment Of Infections In Cystic Fibrosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HXowi9Qgx_4/090317200946.htm
"Superbugs" from the Burkholderia cepacia complex (Bcc) could affect treatment of cystic fibrosis (CF). Mannitol inhalation for CF works by attracting moisture into the lungs, thinning the mucus produced. Researchers report that when Bcc are grown on mannitol they produce exopolysaccharide which could contribute to the very problem that the mannitol therapy was designed to solve.
Tue, 24 Mar 09
Special Yogurt Fights Stomach Ulcer Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WdE8ZdAkNI8/090322154405.htm
A new type of yogurt appears to benefit your gut. Results of the first human clinical studies confirm that the new yogurt fights the bacteria that cause gastritis and stomach ulcers with what researchers describe as almost vaccine-like effects, scientists in Japan are reporting.
Tue, 24 Mar 09
Stem Cell Infusion And Hyperbaric Oxygen Treatment Improve Islet Function In Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VswSTr7U9PM/090312130653.htm
A study examining if patients with type 2 diabetes could benefit from patient self-donated stem cell infusion combined with before and after hyperbaric (above normal pressure) oxygen treatment has found significant patient benefits in terms of improved glycemic control and reduced insulin requirements. The treatment could reduce morbidity and mortality, researchers suggested, as the treatments might induce the growth of blood vessels in the pancreas and provide an anti-inflammatory effect.
Tue, 24 Mar 09
New Patch: Extending Useful Life Of Aircraft, Increase Their Reliability And Reduce Repair Costs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1-AU_IiHZAE/090318090146.htm
Scientists are developing a new technology for repairing aircraft by means of composite patches applied to both aluminum and to the new generation of compound materials aircraft. The goal of the project is to extend the life of the aircraft, increase their reliability and reduce the costs of repairs.
Mon, 23 Mar 09
Mice With Disabled Gene That Helps Turn Carbs Into Fat Stay Lean Despite Feasting On High-carb Diet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Cu3yJzuCtl8/090319132919.htm
Researchers have identified a gene that plays a critical regulatory role in the process of converting dietary carbohydrate to fat. Mice that had this gene disabled had lower levels of body fat than their normal counterparts, despite being fed the equivalent of an all-you-can-eat pasta buffet.
Mon, 23 Mar 09
Ten Genes Associated With A Risk Factor For Sudden Cardiac Death Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FfZ-umVrd44/090322154422.htm
That an abnormality in his heart's electrical system had managed to stay on the Q.T. -- until it proved lethal -- is characteristic of sudden cardiac death, which annually claims more than a quarter million Americans. A dearth of discernable symptoms and lack of detectable molecules circulating in the blood makes the prediction of sudden cardiac death largely dependent on genetic risk factors.
Mon, 23 Mar 09
Genetic Mechanism In Mole Rats Can Be Targeted In Cancer Research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yUeF1xL9FHc/090315223845.htm
Cellular mechanisms that subterranean mole rats have developed in order to survive the low levels of oxygen in their underground habitat are similar to the mechanisms used by tumors to survive and progress in humans. Based on a new study, the mole rat can represent the human tumor in research, and the gene targeted in mole rats can be targeted for development of anti-cancer drugs.
Mon, 23 Mar 09
Wet Combing More Accurate Than Visual Inspection For Identifying Active Head Lice Infestation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6j0L_c7mubY/090316173321.htm
Combing through a child's wet hair may lead to more accurate identification of active head lice infestation than visual inspection, according to a new report. However, visual inspection may yield a more precise assessment of the number of children who have eggs or nits (larvae) in their hair.
Mon, 23 Mar 09
Brain On A Chip?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TDHzqDDHOio/090318090142.htm
How does the human brain run itself without any software? Find that out, say European researchers, and a whole new field of neural computing will open up. A prototype ‘brain on a chip’ is already working.
Mon, 23 Mar 09
Longer Bouts Of Exercise Help Prevent Childhood Obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/URf6R37RYJY/090318113604.htm
Children who exercise in bouts of activity lasting five minutes or longer are less likely to become obese than those whose activity levels are more sporadic and typically last less than five minutes each, researchers have discovered.
Mon, 23 Mar 09
First Automated Carbohydrate 'Assembly Line' Opens Door To New Field Of Medicine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/C_ZdRXKLwMU/090322154409.htm
Scientists from Germany have reported a major advance toward opening the doors of a carbohydrate-based medicine chest for the 21st century. Much more than just potatoes and pasta, these carbohydrates may form the basis of revolutionary new vaccines and drugs to battle malaria, HIV, and a bevy of other diseases.
Mon, 23 Mar 09
Common Anti-seizure Medications May Increase Risk Of Cardiovascular Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5MClWJj_MJ0/090318085928.htm
An important clinical repercussion in the treatment of epilepsy has been discovered. Medical researchers have determined that two of the most commonly prescribed anti-seizure medications may lead to significantly increased levels of cholesterol, C-reactive protein and other markers of cardiovascular disease risk.
Mon, 23 Mar 09
How Proteins Find The Right DNA Sequences
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TPcUP0-JQsM/090316092008.htm
Researchers have developed a new theoretical model to explain how proteins can rapidly find specific DNA sequences, even though there are many obstacles in the way on the chromosomes.
Mon, 23 Mar 09
New Type Of Botulinum Toxin Appears To Be Well Tolerated And May Help Reduce Forehead Wrinkles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/61-HYMmldLw/090316173319.htm
Injections with a new type of botulinum toxin appears to be well tolerated and may help to improve the appearance of moderate to severe forehead lines with no evidence of diminishing treatment response over 13 months, according to a new report.
Mon, 23 Mar 09
Scientists One Step Closer To Stopping Bone Loss During Spaceflight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3ryVaU8ZVgE/090320150710.htm
By simulating spaceflight conditions through the use of long-duration bedrest, researchers have found -- for the first time -- a way to prevent bone loss in a specific region of the hip.
Mon, 23 Mar 09
Severe Vomiting Sickness With Chronic Cannabis Abuse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sZveVeE6bHY/090320102130.htm
Marijuana, a commonly abused drug among high school and college students, is linked to a severe form of vomiting syndrome and compulsive bathing behavior. This form of severe vomiting sickness is increasingly recognized with widespread abuse of marijuana. The syndrome usually subsides with strict abstinence from marijuana abuse.
Mon, 23 Mar 09
Shifting Sound To Light May Lead To Better Computer Chips
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jIGf8axAY3k/090316142436.htm
By reversing a process that converts electrical signals into sounds heard out of a cell phone, researchers may have a new tool to enhance the way computer chips, LEDs and transistors are built.
Mon, 23 Mar 09
Mechanism Of Alzheimer's Suggests Combination Therapy Needed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dK0453BTlzg/090317171948.htm
Researchers have discovered a mode of action for mysterious but diagnostic protein snarls found in the brains of Alzheimer's patients that suggests a one-two punch of therapy may be needed to combat the neurodegenerative disease.
Mon, 23 Mar 09
First Discovery Of 'Animals-only' Pigment Bilirubin In Plants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6DuvLbdXDg0/090316093001.htm
In a first-of-its-kind discovery that overturns conventional wisdom, scientists in Florida are reporting that certain plants — including the exotic "White Bird of Paradise Tree" — make bilirubin. Until now, scientists thought that pigment existed only in animals. The finding may change scientific understanding of how the ability to make bilirubin evolved, researchers say.
Mon, 23 Mar 09
Dendritic Cells Ensure Immune Tolerance
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D-8T840Buvk/090316075851.htm
One of the most important tasks of the immune system is to identify what is foreign and what is self. If this distinction fails, then the body's own structures will be attacked, the result of which could be an autoimmune disease such as diabetes mellitus type 1 or multiple sclerosis. The only way to protect against these afflictions is to destroy all immune factors that turn against the body’s own tissue – in other words: immune tolerance. Scientists have now investigated exactly what role dendritic cells play in this process.
Mon, 23 Mar 09
Internet Can Warn Of Ecological Changes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FHXyW4erWdI/090319104033.htm
The Internet could be used as an early warning system for potential ecological disasters, according to researchers in Sweden and England.
Mon, 23 Mar 09
Link Between Religious Coping And Aggressive Treatment In Terminally Ill Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6x21dr0kPQ0/090317162842.htm
In a new study of terminally ill cancer patients, researchers at Dana-Farber Cancer Institute found that those who draw on religion to cope with their illness are more likely to receive intensive, life-prolonging medical care as death approaches -- treatment that often entails a lower quality of life in patients' final days.
Mon, 23 Mar 09
Curious Pair Of Galaxies: Best Image Ever Of Strange And Chaotic Duo
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6ckf0Z17YJU/090316111407.htm
The ESO Very Large Telescope has taken the best image ever of a strange and chaotic duo of interwoven galaxies. The images also contain some surprises -- interlopers both far and near.
Mon, 23 Mar 09
MRSA Study Suggests Strategy Shift Needed To Develop Effective Therapeutics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KzLPHCZ6xsA/090317125226.htm
USA300 -- the major epidemic strain of methicillin-resistant Staphylococcus aureus (MRSA) causing severe infections in the United States during the past decade -- inherits its destructiveness directly from a forefather strain of the bacterium called USA500 rather than randomly acquiring harmful genes from other MRSA strains.
Mon, 23 Mar 09
New Platinum Catalysts For The Dehydrogenation Of Propane Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ukyI857ssbQ/090313150113.htm
The process to turn propane into industrially necessary propylene has been expensive and environmentally unfriendly. That was until scientists devised a greener way to take this important step in chemical catalysis.
Mon, 23 Mar 09
Obesity Associated With Worse Outcomes After Pancreatic Cancer Surgery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W3YgvhewusA/090316173315.htm
Obese patients with a body mass index of more than 35 appear more likely to have cancer that has spread to their lymph nodes, lower rates of survival and higher rates of recurrence following surgery for pancreatic cancer, according to a new report.
Mon, 23 Mar 09
Tree Species Composition Influences Nitrogen Loss From Forests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LCubpBJgjeg/090316133438.htm
The Catskill Mountains receive some of the highest nitrogen deposition rates in North America due to pollutants drifting, and a recent study in this region demonstrates how some forested watersheds are more capable than others in absorbing nitrogen. While nitrogen is an important nutrient for plant growth, excess levels are capable of acidifying soils and decreasing water quality.
Mon, 23 Mar 09
Financial Security, More Than Money Alone, May Be Key To Happiness, Study Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9gwMgNr56xk/090317125228.htm
A study of the mental state of the modern American woman has found a powerful link between concerns over financial security and satisfaction with one's life. In looking toward the future, women who concentrated much of their thinking on financial matters were much less likely to be happy with their lives, according to the study.
Mon, 23 Mar 09
Nanotech Batteries For A New Energy Future
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ySnYGujrIqI/090320173859.htm
Scientists have developed new systems for storing electrical energy derived from alternative sources that are, in some cases, 10 times more efficient than what is commercially available.
Mon, 23 Mar 09
Combination Therapy Restores T Cell Numbers In HIV-infected Individuals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pATutb6bsnA/090316173313.htm
CD4+ T cell depletion by HIV is a major blow to the immune system. Combination antiretroviral therapy (c-ART) restores the T cell population, however not all patients respond to this therapy. Researchers report that administration of interleukin-7 (IL-7) to c-ART--treated, HIV-infected patients with low T cell counts, boosted T cell numbers and was well tolerated for 48 weeks. HIV-infected patients may benefit from intermittent IL-7 therapy in combination with c-ART.
Mon, 23 Mar 09
Stem Cells Yield New Clues To Glut Of Glial Cells In Down's Syndrome, Glioblastoma, And Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AkHnI9WaKwI/090313150123.htm
A newly identified molecular pathway that directs stem cells to produce glial cells yields insights into the neurobiology of Down's syndrome and a number of central nervous system disorders characterized by too many glial cells, according to a recent study.
Mon, 23 Mar 09
Selected Men With Low-risk Prostate Cancer Have Good Clinical Outcomes Without Immediate Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/grVDoeWqWHQ/090316075723.htm
A 16-year study across four institutions finds that certain men with low-risk prostate cancer may be getting "overtreated" and in many cases don't need therapy or surgery.
Mon, 23 Mar 09
New Experiments Constrain Higgs Mass
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RGU5-pHB9bs/090313110741.htm
The territory where the Higgs boson may be found continues to shrink. The latest data from the collider experiments at the Department of Energy's Fermilab now exclude a significant fraction of the allowed Higgs mass range established by earlier measurements. Those experiments predict a Higgs mass between 114 and 185 GeV/c^2. The CDF and DZero results carve out a section in the middle of this range and exclude a mass between 160 and 170 GeV/c^2.
Mon, 23 Mar 09
One In Four Americans Lacks Timely Access To Optimal Care During Time-sensitive Medical Emergencies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TpA6s-W1zAc/090317125221.htm
Although most Americans live close to some type of emergency room, as many as one in four Americans are more than an hour away from the type of hospital that's most prepared to save their life during a time-sensitive medical emergency, according to a new study.
Sun, 22 Mar 09
Living Model Of Basic Units Of Human Brain Created
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3fOp-YCsBhQ/090317095326.htm
Researchers are developing a novel new way to model how the human brain works by creating a living representation of the brain. They are using cells originally from a tumor which have been 'reprogrammed' to stop multiplying. Using the same natural molecule the body does to stimulate cellular development, the cells are turned into a co-culture of nerve cells and astrocytes - the most basic units of the human brain. The research could lead to improved treatments for Alzheimer's and other neurodegenerative diseases.
Sun, 22 Mar 09
Cause For Severe Pediatric Epilepsy Disorder Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KD4yiZ_v3Rw/090316173222.htm
Researchers have discovered that convulsive seizures in a form of severe epilepsy are generated, not on the brain's surface as expected, but from within the memory-forming hippocampus. The scientists hope that their findings -- based on a mouse model of severe epilepsy -- may someday pave the way for improved treatments of childhood epilepsy, which affects more than two percent of children worldwide.
Sun, 22 Mar 09
Synthetic Biology: Transforming Cells Into Microscopic Biological Computers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OmOyUIcIvuY/090317095324.htm
Synthetic biology is an emerging discipline through which scientists hope to transform cells into microscopic biological 'computers' programmed to perform specific tasks. Such capabilities would have a range of applications, including detecting toxic agents, generating clean energy, and large-scale drug manufacturing.
Sun, 22 Mar 09
HPV Vaccine May Prevent Preterm Births
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PLOMMQU7SeY/090317113810.htm
Chronic human papilloma virus (HPV) infections can lead to cellular changes in the cervix that can be a pre-stage to cervical cancer. Surgical treatment of these pre-stages gives an increased risk of preterm birth in subsequent pregnancies. As the HPV vaccine can prevent pre-stages of cervical cancer, it may therefore reduce the number of preterm births. A new Norwegian study has calculated the benefits of HPV vaccination.
Sun, 22 Mar 09
Nanotechnology Boosts Efficiency In Converting Solar Energy Into Hydrogen In Fuel Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hKIdJgZRvv4/090320173135.htm
Researchers find great promise in a process that could use solar energy to use hydrogen, the third most abundant element on earth's surface, as the ultimate alternative to fossil fuels. This process increase dramatically the efficiency of titania photoanodes used to convert solar energy into hydrogen in fuel cells.
Sun, 22 Mar 09
The Brain 'Joins The Dots' When Drawing A Cartoon Face From Memory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SN2nf5r14ac/090319102319.htm
Scientists used a brain scanner to record the brain's activity in each stage of the process of drawing faces. The researchers found that the captured visual information is stored as a series of locations or action plans to reach those locations. It is as if the brain remembers key locations and then "joins the dots" with a straight or curved line to achieve the desired image on the page.
Sun, 22 Mar 09
Climate Warming Affects Antarctic Ice Sheet Stability
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tLQ-hXBjW1k/090318140522.htm
A five-nation scientific team has published new evidence that even a slight rise in atmospheric concentrations of carbon dioxide, one of the gases that drives global warming, affects the stability of the West Antarctic Ice Sheet. The massive WAIS covers the continent on the Pacific side of the Transantarctic Mountains. Any substantial melting of the ice sheet would cause a rise in global sea levels.
Sun, 22 Mar 09
Search For Blood Pressure Secrets Reveals A Surprising New Syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hUbqSnEb134/090316173327.htm
Researchers investigating the genetic causes of blood pressure variation have identified a previously undescribed syndrome associated with seizures, a lack of coordination, developmental delay and hearing loss.
Sun, 22 Mar 09
Four Of Saturn's Moons Parade By Their Parent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NMvh-k15bds/090317125224.htm
A new Hubble Space Telescope image shows four of Saturn's moons circling the ringed planet.
Sun, 22 Mar 09
New Target For Heart Failure Therapy Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-0J7-FopEgY/090316173419.htm
A novel signaling pathway plays a significant role in the production of aldosterone, a hormone that promotes heart failure after a myocardial infarction, according to a study conducted by Thomas Jefferson University researchers.
Sun, 22 Mar 09
Supercooled Silicon: Liquid-liquid Phase Transition In Silicon Confirmed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gUz5HN0Kznc/090316111409.htm
Using rigorous computer calculations, researchers have established evidence that supercooled silicon experiences a liquid-liquid phase transition, where at a certain temperature two different states of liquid silicon exist. The two states each have unique properties that could be used to develop new silicon-based materials. Furthermore, the methods developed can be applied to gain a better understanding of other materials.
Sun, 22 Mar 09
Scots And Irish At Greater Risk Of Drink-related Death, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9KeEJLUAU6o/090319102317.htm
Alcohol-related deaths in England and Wales are twice as high among people born in Scotland or Ireland compared with the rest of the population, a new study has shown.
Sun, 22 Mar 09
Water Acts As Catalyst In Explosives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dCdqc71hmS0/090320150721.htm
The most abundant material on Earth exhibits some unusual chemical properties when placed under extreme conditions. Scientists have now shown that water, in hot dense environments, plays an unexpected role in catalyzing complex explosive reactions.
Sun, 22 Mar 09
Hormone Offers Promise As Fertility Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HWPnqMXkCf4/090316191139.htm
New research suggests the hormone kisspeptin shows promise as a potential new treatment for infertility. Scientists have shown that giving kisspeptin to women with infertility can activate the release of sex hormones which control the menstrual cycle. This research could lead to a new fertility therapy for women with low sex hormone levels.
Sun, 22 Mar 09
Collagen Injections Can Help Some Incontinence Patients When Surgery Fails, Researcher Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zYtFDHnpKSU/090317094723.htm
Collagen injections can benefit women who still suffer from stress urinary incontinence even after urethral or periurethral surgery, researchers have found.
Sun, 22 Mar 09
Radiologic Exams On Pregnant Women More Than Doubled Over 10 Years
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1TCkOGWZd54/090317094717.htm
Researchers have found that over a 10-year period radiologic exams on pregnant women have more than doubled, according to a new study.
Sun, 22 Mar 09
Breakthrough In Chemical Separation Captures Fluorocarbons Dynamically
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w79--lvr9B4/090317094849.htm
Scientists have made a breakthrough in chemical separation. The new chemical separations using porous solids mostly rely on size selection, meaning that compounds too large to squeeze through the pores are excluded. The work by the research group describes a class of ionic solids that can selectively capture certain fluorocarbons dynamically.
Sun, 22 Mar 09
Racial Disparities In Cancer Mortality Rates Between Blacks And Whites Quantified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kD2g7j9AlLI/090321103811.htm
A new study finds that the disparity in mortality between blacks and whites is almost entirely due to the fact that African Americans are more likely to get cancer in the first place. African-American men live 1.47 fewer years than white men, and African-American women 0.91 fewer years than white women, due to all cancers combined.
Sun, 22 Mar 09
Carbon Sinks Losing The Battle With Rising Emissions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/abdO7AkI3XY/090317094729.htm
The stabilizing influence that land and ocean carbon sinks have on rising carbon emissions is gradually weakening, scientists who attended the international Copenhagen Climate Change Conference.
Sun, 22 Mar 09
Novel Spinal Cord Stimulator Sparks Hope For Parkinson's Disease Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oR69xnmg-0k/090319142357.htm
A novel stimulation method, the first potential therapy to target the spinal cord instead of the brain, may offer an effective and less invasive approach for Parkinson's disease treatment, according to pre-clinical data published in the journal Science.
Sun, 22 Mar 09
Can Cherries Relieve The Pain Of Osteoarthritis?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Usc2qilXQA4/090319164327.htm
For the estimated 27 million Americans who suffer from osteoarthritis, pain relief may come with a cherry on top. According to researchers, tart cherries, in pill form, may be a promising pain-reliever for this common and debilitating form of arthritis.
Sun, 22 Mar 09
Moderate Intensity Walking Means 100 Steps Per Minute
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DvhY8rxvLyA/090317094719.htm
It is recommended that people engage in 30 minutes of moderate intensity physical activity daily, 5 times a week. Pedometers, widely used as a monitoring tool, are unable to measure activity intensity. Researchers have determined that a rate of at least 100 steps/minute achieves moderate intensity activity.
Sun, 22 Mar 09
Fuel Removal And Prescribed Burns Reduce Wildfire Severity But May Invite Invasives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k97h2a9sUVk/090319121552.htm
Scientists compared the effectiveness of fire fuel reduction methods under the U.S. National Fire and Fire Surrogate Study. Four articles examine the effects of prescribed burns, mechanical treatment (usually thinning of the smallest trees) and a combination of both with control plots at 12 study sites in forests across the United States.
Sun, 22 Mar 09
Light To Moderate Drinking And Socialization Are Jointly Good For Cardiovascular Health, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CTyvF1GlRKE/090319161456.htm
While heavy drinking is associated with a greater risk of stroke, light-to-moderate drinking has been linked to a lesser risk of ischemic stroke and coronary heart disease. New findings show that social support may enhance the beneficial effects of light-to-moderate alcohol consumption on risk of cardiovascular disease.
Sun, 22 Mar 09
Focus On Treating Malnutrition In Cancer Patients, Researchers Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ufr2k6ZLqXs/090321103803.htm
Cancer patients who are malnourished experience significantly greater levels of psychological distress than those who are more adequately nourished, according to new results.
Sat, 21 Mar 09
Fossil Fragments Reveal 500-million-year-old Monster Predator
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0C83sIHwXOA/090319142403.htm
Hurdia victoria was originally described in 1912 as a crustacean-like animal. Now, researchers reveal it to be just one part of a complex and remarkable new animal that has an important story to tell about the origin of the largest group of living animals, the arthropods.
Sat, 21 Mar 09
Early Detection Of Second Breast Cancers Halves Women’s Risk Of Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zX1JTHT1o1c/090317201133.htm
The first reliable evidence has been found that early detection of subsequent breast tumours in women who have already had the disease can halve the women's chances of death from breast cancer. According to the research, if the second breast cancer was picked up at its early, asymptomatic stage, then the women's chances of survival were improved by between 27-47% compared to women whose second breast cancer was detected at a later stage when symptoms had started to appear.
Sat, 21 Mar 09
New Organic Material May Speed Internet Access; Telecom Breakthrough Mimics The Settling Snow
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WzauPwLDCUs/090315155108.htm
The next time an overnight snow begins to fall, take two bricks and place them side by side a few inches apart. In the morning, the bricks will be covered with snow and barely discernible. What you will see resembles a phenomenon that, when it occurs at the smallest of scales on an integrated optical circuit, could hasten the day when the Internet works at superfast speeds.
Sat, 21 Mar 09
New Technology Opens Gateway To Studying HIV-specific Neutralizing Antibodies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nEza1zS3NwE/090316092010.htm
A new research endeavor has assembled a group of state-of-the-art techniques for the first time to study the phenomenon of natural antibody-mediated HIV neutralization. The project demonstrates how this system can isolate dozens of HIV-specific antibodies from a single HIV-infected individual, something never accomplished before.
Sat, 21 Mar 09
Yeast Biology Yields Insights Into Human Knowledge Expansion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eJRWHKD2Yto/090319224520.htm
How does human knowledge expand over time? Intriguing as the question is, it's not easy to investigate, due to the difficulty of measuring knowledge and its spread.
Sat, 21 Mar 09
Is Parenting A Joy Or A Trial?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s4Twutox72k/090319152210.htm
An economist is claiming that the idea that parenting makes us happy is an illusion. He offers an explanation to one of the most surprising conclusions of recent research into well-being -- that having children does not increase our level of happiness.
Sat, 21 Mar 09
Finding Twin Earths Is Harder Than Thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FItJ-vc4u0E/090320131521.htm
Does a twin Earth exist somewhere in our galaxy? Astronomers are getting closer and closer to finding an Earth-sized planet in an Earth-like orbit. NASA's Kepler spacecraft just launched to find such worlds. Once the search succeeds, the next questions driving research will be: Is that planet habitable? Does it have an Earth-like atmosphere? Answering those questions will not be easy.
Sat, 21 Mar 09
Ticking Of Body's 24-hour Clock Turns Gears Of Metabolism And Aging
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HEQcI_XY_tU/090319142401.htm
Our internal 24-hour clock or circadian rhythm creates a daily oscillation of body temperature, brain activity, hormone production and metabolism. Now researchers report finding how the biological circadian clock mechanism communicates with processes that govern aging and metabolism.
Sat, 21 Mar 09
New View Of Oceanic Phytoplankton
http://feeds.sciencedaily.com/~r/sciencedaily/~3/srXRZfURbik/090310100839.htm
Oceanographers describe a novel strategy for phytoplankton growth in the vast nutrient-poor habitats of tropical and subtropical seas.
Sat, 21 Mar 09
Alzheimer's Disease Therapeutic Prevents Long-term Damage From TBI In Pre-clinical Studies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y788gkDxrBY/090315155056.htm
A class of Alzheimer's disease drugs currently studied in clinical trials appears to reduce damage caused by traumatic brain injury in animals, researchers report.
Sat, 21 Mar 09
What Flies And Worms Have In Common
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d45eSlldeHY/090312215211.htm
Researchers have, for the first time, compared the proteomes of two different multi cellular organisms. They found surprising correlations between two animals that, at first sight, couldn't be more different.
Sat, 21 Mar 09
Contrary To Widely Held Beliefs, Romance Can Last In Long-term Relationships, Say Researchers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iPVrbwgQI6M/090317153039.htm
Romance does not have to fizzle out in long-term relationships and progress into a companionship/friendship-type love, a new study has found. Romantic love can last a lifetime and lead to happier, healthier relationships.
Sat, 21 Mar 09
Not All Bats Land The Same Way
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_s-5aCziy-E/090320102136.htm
Scientists have documented for the first time how bats land. The results are surprising: not all bats land the same way. The findings could offer new insights into how the second-largest order of mammals evolved.
Sat, 21 Mar 09
New Insights Into Parkinson's Disease And Possible Treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WorlNaYV76s/090319142354.htm
Researchers have used light to illuminate how the treatment works, generating surprising insights into the diseased circuitry and also suggesting new ideas to improve Parkinson's therapy.
Sat, 21 Mar 09
New Tracking Tags Are Providing Fish-eye Views Of Ways To Manage Depressed Fisheries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/943V1x8qKBY/090313145941.htm
New tracking and observing technologies are giving marine conservationists a fish-eye view of conditions, from overfishing to climate change, that are contributing to declining fish populations, according to a new study.
Sat, 21 Mar 09
Kidney With Tumor Removed Through Vagina
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BCnal3upejk/090313171320.htm
A kidney with a tumor was removed through the patient's vagina. The operation lasted 220 minutes followed by a two day hospital stay. The patient experienced no complications and was discharged from the hospital with no visible abdominal scar.
Sat, 21 Mar 09
Computerized Female Form For Designers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uuXDXMMQVeA/090312115129.htm
Researchers in Japan have turned to mathematics to build a computerized 3-D model of the female trunk that could help lingerie and other clothes designers make more sensuous, comfortable and better fitting product ranges.
Sat, 21 Mar 09
Grand Prizes Might Help Induce Sports 'Hot Streaks'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lAU_vHb_Yss/090317153043.htm
Dangling a lucrative financial carrot at the end of a professional sport season can cause certain players to exert the effort necessary to put together a string of successful performances, sometimes known in sporting circles as a "hot hand" or "hot streak."
Sat, 21 Mar 09
No Hiding Place For Infecting Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/98DjVvOj6I4/090315202117.htm
Scientists have discovered a new approach to prevent bacterial infections from taking hold. They used enzymes against products of the body's own defense cells to prevent Pseudomonas aeruginosa bacteria from building a protective biofilm which enables them to avoid both the body's immune mechanisms and antibiotics.
Sat, 21 Mar 09
Biodiversity Found In Unexpected Regions: More Than 200 Plant Species Found In Semi-arid Rivers In South Eastern Spain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XupoBhfw38c/090313150250.htm
The prevailing belief to date has been that the streams of south eastern Spain contained nothing of interest. However, environmental researchers have shown that these ecosystems, which are unique in Europe, are home to great plant and animal biodiversity.
Sat, 21 Mar 09
New Measure For Malignancy Of Melanoma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ci-stfwoffc/090312114759.htm
A growth factor which promotes the formation of new blood vessels in a tumor indicates disease progression in malignant melanoma. Besides its effect on vascular wall cells, the growth factor also increases the malignant properties of the cancer cells themselves.
Sat, 21 Mar 09
Engineers Crack Ceramics Production Obstacle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ke0UcL1VKkw/090313080304.htm
New computer-aided ‘predictive technology’ has potential to save industry time, money and reduce wastage.
Sat, 21 Mar 09
Low To Moderate, Not Heavy, Drinking Releases 'Feel-good' Endorphins In The Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IPY8cMke2S8/090319161503.htm
Scientists know that alcohol affects the brain, but the specifics are unclear. New findings show that low and moderate but not high doses of alcohol increase the release of beta-endorphin. Beta-endorphin release produces a general feeling of well-being that reinforces the desire to drink.
Sat, 21 Mar 09
Plant Biologists Discover Gene That Switches On 'Essence Of Male'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Wx5wD-qOKRQ/090319224538.htm
Biologists have completed a new study into plant sex -- and discovered that a particular gene switches on 'the essence of male'. The study takes to a new level understanding of the genes needed for successful plant reproduction and seed production.
Sat, 21 Mar 09
Immune Cells Play Surprising Role In Cystic Fibrosis Lung Damage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MJpRXBu6jxM/090316173220.htm
Immune cells once thought to be innocent bystanders in cystic fibrosis may hold the key to stopping patients' fatal lung disease. New findings show that white blood cells called neutrophils respond strongly to conflicting signals from cystic fibrosis patients' lungs, setting up a molecular fracas that may explain the patients' severe lung damage.
Sat, 21 Mar 09
Byzantine Period Church With Beautiful Mosaics Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SithOGZhdec/090315114041.htm
A church that dates to the Byzantine period which is paved with breathtakingly beautiful mosaics and a dedicatory inscription was exposed in an archaeological excavation.
Sat, 21 Mar 09
Prion Discovery Gives Clue To Control Of Mass Gene Expression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N15GSJwqm_0/090313171316.htm
The discovery of a new yeast prion may provide clues on whether prions, like proteins, can affect mass activation of gene expression.
Sat, 21 Mar 09
Stainless Steel Replaces Platinum In Hydrogen Producing Microbial Electrolysis Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Vwmo5rrwc30/090313145946.htm
Platinum is highly desired in jewelry and as a catalyst, but in both cases it is expensive. Now, researchers have found a way to replace the platinum catalyst in their hydrogen generating microbial electrolysis cells with stainless steel brushes without losing efficiency.
Sat, 21 Mar 09
Moderate Obesity Takes Years Off Life Expectancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BNZvwXWFPvY/090319224823.htm
A new analysis of almost one million people from around the world has shown that obesity can trim years off life expectancy. Moderate obesity, which is now common, reduces life expectancy by about 3 years, and that severe obesity, which is still uncommon, can shorten a person's life by 10 years. This 10 year loss is equal to the effects of lifelong smoking.
Sat, 21 Mar 09
New Human Genetic Link To High Levels Of 'Good' Cholesterol
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TDafBGs81W0/090316173311.htm
HDL cholesterol, or "good" cholesterol, helps eliminate excess "bad" cholesterol that might otherwise block arteries. As such, individuals with high plasma HDL cholesterol levels have a decreased risk of coronary artery disease. Researchers now show that mutations in the LIPG gene, which codes for the enzyme endothelial lipase, result in high plasma HDL cholesterol levels, providing important human genetic evidence that inhibition of endothelial lipase is likely to raise "good" cholesterol levels.
Sat, 21 Mar 09
Earth Science: Lithosphere Deformed And Fractured Under Indian Ocean Much Earlier Than Previously Thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5lqqV3eAks8/090315114430.htm
The discovery by Indian and British scientists that the Earth's strong outer shell -- the 'lithosphere' -- within the central Indian Ocean began to deform and fracture 15.4--13.9 million years ago, much earlier than previously thought, impacts our understanding of the birth of the Himalayas and the strengthening of the Indian-Asian monsoon.
Sat, 21 Mar 09
Preventing Blood Clots With Drug From Magnolia Trees
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S6VTzVqGEME/090312205228.htm
A new drug derived from magnolia trees appears to be able to uncouple two important functions of thrombin in blood clot formation and may offer a way to better control the potentially dangerous complications of bleeding and clot formation during procedures to open blocked coronary arteries, say researchers.
Sat, 21 Mar 09
Fledgling Mantle Plume May Be Cause Of African Volcano's Unique Lava
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UporMEERN3o/090313110733.htm
Nyiragongo, an active African volcano, possesses lava unlike any other in the world, which may point toward its source being a new mantle plume says a geochemist. The lava composition indicates that a mantle plume -- an upwelling of intense heat from near the core of the Earth -- may be bubbling to life beneath the soil of the Democratic Republic of the Congo.
Sat, 21 Mar 09
Cognitive Decline Begins In Late 20s, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-s0U2rKZs6A/090320092111.htm
A new study indicates that some aspects of peoples' cognitive skills -- such as the ability to make rapid comparisons, remember unrelated information and detect relationships -- peak at about the age of 22, and then begin a slow decline starting around age 27.
Sat, 21 Mar 09
Giant Solar Twists Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QuGzmpQSt1A/090320102138.htm
Scientists have made a finding that will help us to understand more about turbulent solar weather and its affect on our planet. The researchers have detected giant twisting waves in the lower atmosphere of the Sun.
Sat, 21 Mar 09
Liquid Saltwater Is Likely Present On Mars, New Analysis Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yqbXmHtZGBE/090319232438.htm
Salty, liquid water has been detected on a leg of the Mars Phoenix Lander and therefore could be present at other locations on the planet, according to analysis by a group of mission scientists. This is the first time liquid water has been detected and photographed outside the Earth.
Fri, 20 Mar 09
Language Of Music Really Is Universal, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CH54ihK2_Bw/090319132909.htm
Native African people who have never even listened to the radio before can nonetheless pick up on happy, sad, and fearful emotions in Western music, according to a new article. The result shows that the expression of those three basic emotions in music can be universally recognized, the researchers said.
Fri, 20 Mar 09
Acetaldehyde In Alcohol: 'Hangover Chemical' May Be Overlooked Risk Factor For Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jRamG1AoJ9Y/090319102419.htm
New evidence shows that drinking alcohol is the greatest risk factor for acetaldehyde-related cancer. Heavy drinkers may be at increased risk due to exposure from multiple sources. The research team also noted, that this risk is compounded by the addition of acetaldehyde exposure from different sources.
Fri, 20 Mar 09
Liking Sweets Makes Sense For Kids
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vhfB1rn6EFk/090318140624.htm
New research indicates that this heightened liking for sweetness has a biological basis and is related to children's high growth rate. The findings suggest that sweet preferences decline during adolescence as physical growth slows and eventually stops.
Fri, 20 Mar 09
Scientists Closer To Understanding How To Control High Blood Sugar
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NBiMFlOo5OE/090318171200.htm
Scientists are closer to understanding which proteins help control blood sugar, or glucose, during and after exercise. This understanding could lead to new drug therapies or more effective exercise to prevent type 2 diabetes and other health problems associated with having high blood sugar.
Fri, 20 Mar 09
New Method For Detecting Explosives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z2_S7QvVNxA/090313150117.htm
Scientists have discovered a way to sensitively detect explosives based on the physical properties of their vapors. Their technology is currently being developed into prototype devices for field testing.
Fri, 20 Mar 09
Female Mammals Follow Their Noses To The Right Mates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uxg1RLbAnQk/090317153045.htm
Historically, most examples of female mate choice and its evolutionary consequences are found in birds. But that doesn't mean mammals aren't just as choosy, researchers say. It just means that mammal mate preferences may be harder to spot.
Fri, 20 Mar 09
Teeth Of Columbus' Crew Flesh Out Tale Of New World Discovery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ovWNfognwws/090319132954.htm
The adage that dead men tell no tales has long been disproved by archaeology. Now, however, science is taking interrogation of the dead to new heights. In a study that promises fresh and perhaps personal insight into the earliest European visitors to the New World, researchers are extracting the chemical details of life history from the teeth of crew members Christopher Columbus left on the island of Hispaniola after his second voyage to America in 1493-94.
Fri, 20 Mar 09
Blocked Enzyme Reverses Schizophrenia-like Symptoms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E5G_gf8ebWc/090319132923.htm
Researchers at MIT's Picower Institute for Learning and Memory have found that inhibiting a key brain enzyme in mice reversed schizophrenia-like symptoms.
Fri, 20 Mar 09
Nanoscopic Probes Can Track Down And Attack Cancer Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LWBNixr5hVM/090316111359.htm
A researcher has developed probes that can help pinpoint the location of tumors and might one day be able to directly attack cancer cells. The professor of agricultural and biological engineering developed the nanoscale, multi-functional probes, which have antibodies on board, to search out and attach to cancer cells.
Fri, 20 Mar 09
Cellular Discovery May Lead To Targeted Treatment For Rare Form Of Anemia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yM9p0httEKc/090315155100.htm
University of Cincinnati researchers have identified the specific biological mechanisms believed to lead to a rare and incurable blood disease known as Diamond Blackfan anemia. Scientists say with further investigation, their discoveries could result in drastic changes to current thinking about treatment for this disease and may lead to promising new drug therapies.
Fri, 20 Mar 09
New Madrid Fault System, U.S., May Be Shutting Down
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s0t8RY75wS0/090313145956.htm
The New Madrid fault system does not behave as earthquake hazard models assume and may be in the process of shutting down, a new study shows.
Fri, 20 Mar 09
Stranger Knows Best: Other People Know More About What Will Make Us Happy Than We Do
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_QqiNFOePJw/090319142352.htm
Want to know what will make you happy? Then ask a total stranger -- or so says a new study from Harvard University, which shows that another person's experience is often more informative than your own best guess.
Fri, 20 Mar 09
Lab-grown Nerves Promote Nerve Regeneration After Injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MPG-5XD6S3I/090319160122.htm
Researchers have engineered transplantable living nerve tissue that encourages and guides regeneration in an animal model. They have successfully grown, transplanted, and integrated axon bundles that act as "jumper cables" to the host tissue in order to bridge a damaged section of nerve.
Fri, 20 Mar 09
Exposure To Insecticide May Play Role In Obesity Epidemic Among Some Women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/prIIDsVTppA/090319111328.htm
Prenatal exposure to an insecticide commonly used up until the 1970s may play a role in the obesity epidemic in women, according to a new study.
Fri, 20 Mar 09
New Super-bouyant Material: Life Preserver Might Float A Horse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/58dREo5qHh4/090316092837.htm
Researchers in China are reporting the development of miniature super-bouyant boats that float so well that an ordinary life preserver made from the same material might support a horse without sinking. The advance, they say, might be difficult to apply to full-size craft. However, it could lead to a new generation of aquatic robots for spy missions and other futuristic devices, the scientists add.
Fri, 20 Mar 09
Serious Infection In Pregnancy: Experimental Vaccine Shows Promise In Preventing Cytomegalovirus Infection In Infants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x6yM6KQrIxE/090318211234.htm
Each year, approximately 8,000 infants in the United States develop severe hearing, mental or movement impairments after becoming infected with cytomegalovirus (CMV), a common virus passed onto them while still in the womb. Now, published results of a trial involving 441 CMV-negative women give rise to optimism that a vaccine to prevent congenital CMV may be closer. Women who received the trial vaccine were 50 percent less likely to later become infected with CMV than were women who received a saline injection.
Fri, 20 Mar 09
Change Of Lighting Could Drastically Reduce Bird Death By Collision With Communication Towers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ke9A622zmOk/090319102421.htm
Each year, it is estimated that millions of birds collide with communication towers. Researchers have discovered that a simple alteration of the lighting scheme on these towers may reduce bird mortality by as much as 71 percent.
Fri, 20 Mar 09
Report Warns Of Jury Service 'Trauma'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gO-DIVXSEi4/090319102313.htm
A new report by psychologists warns of the dangers of jurors facing trauma because of their exposure to harrowing and gruesome evidence. In the first study of its kind, the research highlights how women jurors are more vulnerable, particularly if the trial covers material that resonates with their personal histories.
Fri, 20 Mar 09
Two Dying Red Supergiant Stars Produced Supernovae
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4F4IwFnKLic/090319142405.htm
Where do supernovae come from? Astronomers have long believed they were exploding stars, but by analyzing a series of images, researchers have now shown that two dying red supergiant stars produced supernovae.
Fri, 20 Mar 09
Progress Toward An Alzheimer’s Drug That Saves Brain Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pQSKzNaLHII/090319104027.htm
Scientists have identified a molecule that can form the basis for a new therapy for Alzheimer's disease. This is the first step toward a medicine that could actually stop the progress of Alzheimer's. Existing medicines can at best limit the loss of memory during the first phases of the disease.
Fri, 20 Mar 09
Fast Camera Shows Even Small Variations In Blood Circulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iIqPRFuagSQ/090319104029.htm
A new camera developed by scientists in The Netherlands is capable of imaging even small variations in blood circulation. It is a powerful tool for evaluating burns or other disorders that disrupt the blood flow.
Fri, 20 Mar 09
Iron Is Involved In Prion Disease-associated Neuronal Demise
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uJCt3nHe3N8/090313145954.htm
Imbalance of iron homeostasis is a common feature of prion disease-affected human, mouse, and hamster brains, according to a new study. These findings provide new insight into the mechanism of neurotoxicity in prion disorders, and novel avenues for the development of therapeutic strategies.
Fri, 20 Mar 09
Influenza And Bacterial Pneumonia Make For Harmful Super-infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FQYG8ccOnJ8/090317111904.htm
Influenza, or flu, is an unpleasant affair with fever, cough, as well as head and body ache. When this illness is further complicated by a bacterial pneumonia, a harmful super-infection develops. Until now, researchers thought that the flu facilitates an infection with pneumonia bacteria because it leads to a decrease of immune cells in the blood and thus impairs the body's defenses.
Fri, 20 Mar 09
Majority Of Fire And Ambulance Recruits Overweight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CUM3lTI1ZWI/090319102305.htm
Researchers have found that more than 75 percent of emergency responder candidates for fire and ambulance services in Massachusetts are either overweight or obese. The findings, which appear online in the journal Obesity on March 19, have significant consequences for public health and safety.
Fri, 20 Mar 09
Major Losses For Caribbean Reef Fish In Last 15 Years
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8wqNOnd8Ml4/090319132911.htm
By combining data from 48 studies of coral reefs from around the Caribbean, researchers have found that fish densities that have been stable for decades have given way to significant declines since 1995.
Fri, 20 Mar 09
Daily Drinking Rather Than Binge Drinking Is Biggest Risk Factor In Serious Liver Disease, New Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zgm-C3n3bLc/090319104031.htm
Long-term daily drinking, rather than weekly binge drinking, is by far the biggest risk factor in serious liver disease, according to a new report. The study concludes that increases in UK liver deaths are a result of daily or near daily heavy drinking, not episodic or binge drinking, and this regular drinking pattern is often discernable at an early age. It also recommends that several alcohol-free days a week is a healthier drinking pattern.
Fri, 20 Mar 09
Alzheimer's Disease Neuroimaging Initiative Announces Completion Of Genome-wide Analysis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZDCLG0C3xDo/090316101432.htm
A high-density genome wide analysis of participants in the Alzheimer's Disease Neuroimaging Initiative is more than 95 percent complete. The ADNI data will be used by researchers to search for genes that contribute to the development of Alzheimer's disease.
Fri, 20 Mar 09
Historical Increase In Corn Yield: It's In The Roots
http://feeds.sciencedaily.com/~r/sciencedaily/~3/c6iEBGs0Cic/090316133429.htm
The extraordinary yield advance within the US Corn Belt over the past century has been a significant agricultural development associated with the breeding of hybrids and increased planting density. A new study examines how the root structure of corn has been one of the key factors in the efficiency of these crops.
Fri, 20 Mar 09
As Planet Warms, Poor Nations Face Economic Chill
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UnMpdeopEGc/090316173421.htm
A rising tide is said to lift all boats. Rising global temperatures, however, may lead to increased disparities between rich and poor countries, according to a recent economic analysis of the impact of climate change on growth.
Fri, 20 Mar 09
Ozone: New Simulation Shows Consequences Of A World Without Earth's Natural Sunscreen
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gd4sTOgDuOg/090319090754.htm
The year is 2065. Nearly two-thirds of Earth's ozone is gone -- not just over the poles, but everywhere. The infamous ozone hole over Antarctica is a year-round fixture, with a twin over the North Pole. The ultraviolet (UV) radiation falling on mid-latitude cities is strong enough to cause sunburn in just five minutes. Such is the world we would have inherited if 193 nations had not agreed to ban ozone-depleting substances, according to atmospheric chemists
Fri, 20 Mar 09
Blocking Protein May Help Ease Painful Nerve Condition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QDWUh6MU85E/090315155110.htm
Scientists have identified the first gene that pulls the plug on ailing nerve cell branches from within the nerve cell, possibly helping to trigger the painful condition known as neuropathy, which is a side effect of some forms of chemotherapy and can also afflict patients with cancer, diabetes and other ailments.
Fri, 20 Mar 09
New Therapeutic Approach To Combat Lymphoma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6vHQQLlGMCc/090312214725.htm
Using the human antibody, L19, which they developed themselves and specifically recognizes the blood vessels in tumor tissue, researchers have succeeded in eliminating lymphatic tumors in both mice and humans. For their study, they combined L19 with known anticancer substances.
Fri, 20 Mar 09
Older Patients With One Type Of Heart Failure May Receive Little Or No Benefit From Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VvHz6oUMkeA/090312092432.htm
People over 80 years of age suffering from a certain type of heart failure do not appear to benefit from most commonly prescribed heart medications, according to a study.
Fri, 20 Mar 09
Cells Get Two Chances, Not Just One, To Fix Their Mistakes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aZuszU6LhOg/090312125357.htm
Cells have two chances to fix the same mistake in their protein-making process instead of just one -- a so-called proofreading step -- that had previously been identified, according to new research. Proteins are essential to life and do most of the work in cells, so avoiding mistakes during their production is a critical way to prevent a variety of harmful conditions that result when mutations cause damage or when cells die.
Fri, 20 Mar 09
Changing The Price Of Foods May Significantly Affect Americans' Weight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ALOcuYTSbLA/090318113610.htm
A new article explores how food prices can affect weight outcomes, revealing that pricing interventions can have a significant effect on obesity rates.
Fri, 20 Mar 09
Surprising Changes In Black Hole-powered 'Blazar' Galaxy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ToHIu1yU-Ag/090318162624.htm
Astrophysicists have uncovered surprising changes in radiation emitted by an active galaxy. Like many active galaxies, a blazar emits oppositely directed jets of particles traveling near the speed of light as matter falls into a central supermassive black hole; this process is not well understood. In the case of blazars, the galaxy is oriented such that we're looking right down the jet.
Fri, 20 Mar 09
Hormone Offers Promise As Fertility Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o2YARdaNe5A/090317095448.htm
New research suggests the hormone kisspeptin shows promise as a potential new treatment for infertility. Scientists have shown that giving kisspeptin to women with infertility can activate the release of sex hormones which control the menstrual cycle. This research could lead to a new fertility therapy for women with low sex hormone levels.
Fri, 20 Mar 09
Nanocups Brim With Potential
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dc-QiDLH5H4/090313171318.htm
Researchers have created a metamaterial that could light the way toward high-powered optics, ultra-efficient solar cells and even cloaking devices.
Fri, 20 Mar 09
Diet Rich In Calcium Aids Weight Loss In People With Calcium Deficient Diets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xCRrrXEQwzU/090312115053.htm
Boosting calcium consumption spurs weight loss, according to a study published in the British Journal of Nutrition, but only in people whose diets are calcium deficient.
Fri, 20 Mar 09
Facemasks Help Prevent Adverse Cardiovascular Effects Caused By Pollution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RU06ZM-L-rE/090312205224.htm
Diesel exhaust causes arteries to lose their flexibility. Researchers found that exposure to engine pollution resulted in arterial stiffness in a group of healthy volunteers.
Fri, 20 Mar 09
London Murders: Statistics Theory Shows Numbers Are Predictable
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q1lf6jxPGwQ/090317201131.htm
A leading statistician claims that the number of murders in London last year was not out of the ordinary and followed a predictable pattern. His report argues that shocking headline numbers are not as surprising as one might think.
Fri, 20 Mar 09
Is The Hippopotamus The Closest Living Relative To The Whale?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kX8g6zKXO_U/090318153803.htm
Hippos spend lots of time in the water and now it turns out (or researchers argue), they are the closest living relative to whales. It also turns out, the two are swimming in a bit of controversy.
Fri, 20 Mar 09
First Sister Study Results Reinforce The Importance Of Healthy Living
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9HclLekROeo/090316151033.htm
Women who maintain a healthy weight and who have lower perceived stress may be less likely to have chromosome changes associated with aging than obese and stressed women, according to a pilot study that was part of the Sister Study. The long-term sister study is looking at the environmental and genetic characteristics of women whose sister had breast cancer to identify factors associated with developing breast cancer.
Fri, 20 Mar 09
Doctors Test Targets For Deep Brain Stimulation In Parkinson Surgery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qVY0s0h5wK0/090313150119.htm
Doctors have compared the two current target areas of deep brain stimulation surgery, or DBS. Investigators found that DBS in either brain target effectively treated motor symptoms such as tremors, stiffness and slowness. However, DBS also produced unique effects depending on the target location, especially in patients' moods and mental sharpness.
Fri, 20 Mar 09
Parkinson's-linked Mutation Makes Neurons Vulnerable To Calcium-induced Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Wo3TuB5fTW4/090312125351.htm
A new study reveals the mechanism by which a genetic mutation linked with Parkinson's disease renders dopamine neurons particularly vulnerable to cell injury and death.
Fri, 20 Mar 09
Odds Of Tipping: Better Than Even Chance Of Major Changes In Global Climate System, Experts Predict
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QNHTtiCEiMg/090317095450.htm
According to the estimates of climate scientists in a newly published expert survey, there is more than a 50% chance of major changes in the global climate system if global warming proceeds at the current rate. Should average global temperature increase by more than 4 degrees Celsius, one or several parts of the climate system could tip to a new state.
Fri, 20 Mar 09
How Brain Remembers Single Events
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UgmNYkN4wY4/090318140526.htm
Single events account for many of our most vivid memories -- a marriage proposal, a wedding toast, a baby's birth. Until a recent discovery, however, scientists knew little about what happens inside the brain that allows you to remember such events.
Thu, 19 Mar 09
Microscope Reveals How Soil Bacteria 'Breathe' Toxic Metals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0w1zAIFxAhs/090316151031.htm
Researchers are studying some common soil bacteria that "inhale" toxic metals and "exhale" them in a non-toxic form. The bacteria might one day be used to clean up toxic chemicals left over from nuclear weapons production decades ago.
Thu, 19 Mar 09
Spinal Taps Carry Higher Risks For Infants And Elderly, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DpmvEbmPSlU/090318113559.htm
An X-ray-guided spinal tap procedure fails more than half of the time in young infants and should be used sparingly, if at all, for those patients, according to a new study.
Thu, 19 Mar 09
Silicone Ear Looks Just Like The Real Thing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/03ChNCno4Bw/090318104334.htm
To look at Matthew Houdek, you could never tell he was born with virtually no ear. A surgeon implanted three small metal screws in the side of Houdek's skull. Each screw is fitted with a magnet, and magnetic attraction holds the prosthetic ear in place.
Thu, 19 Mar 09
Strong Links Between Mothers' Diets And Health Of Their Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MaFXS_Wuo7s/090317095332.htm
A new report highlights the links between poor diet in mothers and ill health in their children, and calls for women of childbearing age to be made more aware of the importance of good nutrition.
Thu, 19 Mar 09
The Day The Sun Brought Darkness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ywUw8ptwce0/090316144521.htm
On March 13, 1989 the entire province of Quebec, Canada suffered an electrical power blackout. Hundreds of blackouts occur in some part of North America every year. The Quebec Blackout was different, because this one was caused by a solar storm.
Thu, 19 Mar 09
Depressed People Have Trouble Learning 'Good Things In Life'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FM6BpI7E6bk/090318122006.htm
While depression is often linked to negative thoughts and emotions, a new study suggests the real problem may be a failure to appreciate positive experiences. Researchers found that depressed and non-depressed people were about equal in their ability to learn negative information that was presented to them.
Thu, 19 Mar 09
Shellfish And Inkjet Printers May Hold Key To Faster Healing From Surgeries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lFzE3Erzw3g/090318085923.htm
Using the natural glue that marine mussels use to stick to rocks, and a variation on the inkjet printer, scientists have devised a new way of making medical adhesives that could replace traditional sutures and result in less scarring, faster recovery times and increased precision for exacting operations such as eye surgery.
Thu, 19 Mar 09
Genetic Differences Help Protect Against Cervical Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H1lzd1-xz1o/090312174739.htm
Women with certain gene variations appear to be protected against cervical cancer, according to a new study.
Thu, 19 Mar 09
Missing Piece Of Plant Clock Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UlpUZT6rkFQ/090312150729.htm
A newfound molecule links morning and evening components of the plant daily clock, forming a connection long predicted to be an important element of a reliable biological timepiece.
Thu, 19 Mar 09
Unraveling The Roots Of Dyslexia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O4E1ahS2XHU/090312125349.htm
By peering into the brains of people with dyslexia compared to normal readers a study in Current Biology has shed new light on the roots of the learning disability, which affects four to ten percent of the population.
Thu, 19 Mar 09
Physicists Offer New Theory For Iron Compounds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sZW1BS2Adyk/090312165208.htm
A new theory attempts to both explain and predict the complex quantum behavior of an iron-based class of high-temperature superconductors. The article addresses the quantum magnetic fluctuations that have been observed in iron pnictides (pronounced NIK-tides) and explains how electron-electron interactions govern their behavior.
Thu, 19 Mar 09
Fish Consumption Guidelines Not Environmentally Sustainable, Canadian Experts Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ty_okuAv5qE/090316173212.htm
Recommendations to increase fish consumption because of health benefits may not be environmentally sustainable and more research is needed to clarify the benefits of omega-3 fatty acids, according to experts.
Thu, 19 Mar 09
Earth's Crust Melts Easier Than Previously Thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fR_fQW4ECsQ/090318140520.htm
Earth's crust melts easier than previously thought. Researchers measured how well rocks conduct heat at different temperatures and found that as rocks get hotter in the Earth's crust, they become better insulators and poorer conductors. This finding provides insight into how magmas are formed and will lead to better models of continental collision and the formation of mountain belts.
Thu, 19 Mar 09
New Investigational Treatment For Bladder Cancer Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EWIqAlQ-tCM/090312174737.htm
A new investigational therapy for the treatment of bladder cancer has been identified. The discovery was made using a new research model, using mice, which replicates many aspects of human bladder cancer. The model also enabled the researchers to demonstrate that two major tumor suppressor genes, p53 and PTEN, are inactivated in invasive bladder cancer.
Thu, 19 Mar 09
DNA Shape Is Constrained By Evolution: Structural Approach To Exploring DNA
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qb87PVp-gos/090312140852.htm
A novel approach for uncovering functional areas of the human genome by looking at its three-dimensional structure extends the familiar analysis of sequencing of DNA bases. The chemical and computer analysis focused on the structure of DNA to compare sequences of genomes from humans and 36 mammalian species and discovered that 12 percent of the human genome appears to be constrained by evolution -- double the amount detected by DNA sequencing.
Thu, 19 Mar 09
Estrogen Activates Critical Lung Genes To Improve Lung Function Following Preterm Birth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_k_zJuFZrCI/090312092434.htm
Estrogen may be a new postnatal therapy to improve lung function and other outcomes in preterm infants, researchers have found in an animal study.
Thu, 19 Mar 09
Interaction Between Supersonic Fuel Spray And Its Shock Wave Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RGdhdn27WpI/090312134641.htm
Shock waves are a well tested phenomenon on a large scale, but scientists have made a breakthrough that reveals the interaction between shockwaves created by high-pressure supersonic fuel jets.
Thu, 19 Mar 09
Key To Happiness Is Gratitude, And Men May Be Locked Out
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E75x1F2gbnA/090313145939.htm
Let yourself be grateful -- it's the best way to achieve happiness according to several new studies. Gratitude, the emotion of thankfulness and joy in response to receiving a gift, is one of the essential ingredients for living a good life, researchers say. When it comes to achieving well-being, gender plays a role. He found that men are much less likely to feel and express gratitude than women.
Thu, 19 Mar 09
Particle Oddball Surprises Physicists
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DmqahFDhX4k/090318140618.htm
Scientists at Fermilab have found evidence of an unexpected particle whose curious characteristics may reveal new ways that quarks can combine to form matter.
Thu, 19 Mar 09
Scientists Create Mouse Model Of Melanoma That Generates Hope For The Use Of Targeted Therapies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WDX-xpYI2gc/090312174735.htm
Researchers have developed a new mouse model that allows them to replicate normal pigment cells at the earliest stages of conversion to malignant skin cancer in humans. After testing the mouse with a combination of two drug therapies, the team found the treatment caused a statistically significant regression in cancer cell development.
Thu, 19 Mar 09
Lessons From Hurricane Rita Not Practiced During Hurricane Ike
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oQi1rEsJSGQ/090313110752.htm
A new report released March 12, exactly six months after Hurricane Ike slammed the Texas Gulf Coast, suggests that people did not practice the lessons learned from Hurricane Rita.
Thu, 19 Mar 09
Atrial Fibrillation Linked To An Increased Risk Of Death In Diabetic Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BQbf821axHI/090311223423.htm
Results from a large, international, randomized, controlled trial have shown that there is a strong link between diabetics who have an abnormal heart rhythm (atrial fibrillation) and an increased risk of other heart-related problems and death. The ADVANCE study also showed that if these patients were treated with blood pressure lowering drugs, the risk was reduced: five years of active treatment would prevent one death among every 42 patients with AF.
Thu, 19 Mar 09
Bioinformatics Sheds Light On Evolutionary Origin Of Rickettsia Virulence Genes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jbM7iTETHLo/090311223432.htm
Scientists have revealed that genes for a specific type of molecular secretion system in Rickettsia, a structure that is linked in many cases to virulence, have been conserved over many years of evolution.
Thu, 19 Mar 09
Few Friends Combined With Loneliness Linked To Poor Mental And Physical Health For Elderly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GYaPw_8ESSM/090318113616.htm
Although not having many close friends contributes to poorer health for many older adults, those who also feel lonely face even greater health risks, new research suggests. Older people who are able to adjust to being alone don't have the same health problems. The study is the first to examine the relationships between health and two different types of isolation.
Thu, 19 Mar 09
Killing Young Fish Paradoxically Results In Population Growth, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/neZthAZLeEI/090317143155.htm
If you kill more fish, the total population of the species declines. However, kill only small, young fish, the total number of small, young fish increases. This seemingly paradoxical conclusion has far reaching implications for the sustainable management of oceans.
Thu, 19 Mar 09
Body Clock Regulates Metabolism, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b7W4QVMYzHw/090312140840.htm
Researchers have discovered that circadian rhythms -- our own body clock -- regulate energy levels in cells. The findings have far-reaching implications, from providing greater insights into the bond between the body's day-night patterns and metabolism to creating new ways to treat cancer, diabetes, obesity and a host of related diseases.
Thu, 19 Mar 09
Weighing The Options After Life-altering Stroke
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kZlbpSQacoM/090312114803.htm
Choosing to have aggressive brain surgery after suffering a severe stroke generally improves the patients' lives and allows them to live longer, according to research by neurologists.
Thu, 19 Mar 09
Cell Pathway On Overdrive Prevents Cancer Response To Dietary Restriction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CRgXjL5QDxk/090311153410.htm
Researchers have pinpointed a cellular pathway that determines whether cancerous tumors are susceptible to dietary restriction during their development. When this pathway, known as PI3K is permanently turned "on" via mutation, tumors grow and proliferate independent of the amount of food consumed. However, when the PI3K pathway operates normally, tumors respond to dietary restriction -- defined as food consumption limited to 60 percent of normal -- and become smaller in size.
Thu, 19 Mar 09
Carbon Nanomaterials In Hydrogen Storage: Nano-sized But Big As Catalyst
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZcZzav5dx_I/090312093702.htm
Scientists set out to understand the mechanism behind the catalytic effects of carbon nanomaterials. Experimental and theoretical efforts were combined in a synergistic approach and the results will fasten efforts to develop new catalysts.
Thu, 19 Mar 09
Parents Failing To Recognize Their Children's Risk For Obesity May Be Contributing To Epidemic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1RUJORX8ptU/090318113612.htm
With 17 percent of US children between ages 2 and 19 classified as obese, new research shows that parents may not be recognizing their own children's risk factors. A new study shows that parents are likely to misperceive their child's weight -- especially those parents who are overweight themselves.
Thu, 19 Mar 09
One Mars Rover Sees A Distant Goal; The Other Takes A New Route
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PsaYTPQLgVE/090319090418.htm
On a plain that stretches for miles in every direction, the panoramic camera on NASA's Mars rover Opportunity has caught a first glimpse on the horizon of the uplifted rim of the big crater that has been Opportunity's long-term destination for six months.
Thu, 19 Mar 09
What Perfumes Did Ancient Egyptians Use? Researchers Aim To Recreate 3,500-year-old Scent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_CRQrLdTdIA/090315155106.htm
The Ancient Egyptians cherished their fragrant scents, too, as perfume flacons from this period indicate. In its permanent exhibition, Bonn University's Egyptian Museum has a particularly well preserved example on display. Screening this 3,500-year-old flacon with a computer tomograph, scientists at the university detected the desiccated residues of a fluid, which they now want to submit to further analysis. They might even succeed in reconstructing this scent.
Thu, 19 Mar 09
Variant Form Of Amyloid Beta Hinders Amyloidogenesis And The Development Of Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7bJDNAjOZwA/090312140846.htm
Alzheimer's disease causes misfolding and aggregation of a protein fragment known as amyloid beta and its deposition as plaques in the brain. This process triggers a cascade of event that leads to neurodegeneration. A new study has found that the deadly transformation of amyloid beta into neurotoxic aggregates can be prevented through its interaction with a variant form of the amyloid beta itself. This opens up new prospects for therapies for the disease.
Thu, 19 Mar 09
Tracking Tigers In 3-D
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ab03a6IfF3s/090312134639.htm
New software developed with help from the Wildlife Conservation Society will allow tiger researchers to rapidly identify individual animals by creating a three-dimensional model using photos taken by remote cameras.
Thu, 19 Mar 09
New Pathway That Regulates Inflammation Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nc_8WYFBEuU/090311111017.htm
Researchers have identified a novel pathway that controls the activity of a key protein involved in inflammation. Their findings could have important implications for the treatment of diseases or conditions linked to chronic inflammation.
Thu, 19 Mar 09
Drought, Urbanization Were Ingredients For Atlanta's Perfect Storm
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RlTlItvo394/090311111013.htm
On March 14, 2008, a tornado swept through downtown Atlanta, its 130 mile-per-hour winds ripping holes in the roof of the Georgia Dome, blowing out office windows, and trashing parts of Centennial Olympic Park. It was an event so rare in an urban landscape that researchers immediately began to examine NASA satellite data and historical archives to see what weather and climatological ingredients may have combined to brew such a storm.
Thu, 19 Mar 09
Children Living Near Green Spaces Are More Active
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sdKb888JPUY/090312114757.htm
In this study of children aged 8-10, for every additional park located within a half-mile of their home, girls were twice as likely to walk to school. Boys were 60 percent more likely to walk in leisure time.
Thu, 19 Mar 09
Key Enzyme In Fat Absorption Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FQClXIniaxU/090316092012.htm
Scientists have found that a key enzyme involved in absorbing fat may also be a key to reducing it. The enzyme, acyl CoA: monoacylglycerol acyltransferase 2 or Mgat2 is found in the intestines and plays an important part in the uptake of dietary fat by catalyzing a critical step in making triglyceride, a kind of fat.
Thu, 19 Mar 09
Long, Sexy Tails Not A Drag On Male Birds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UP6Ywbkr694/090312115131.htm
At least two dozen hummingbirds, not to mention hundreds of other birds, sport long tails to attract females. But don't these tails get in the way? By attaching long streamer tails to short-tailed Anna's hummingbirds and testing their wind tunnel flying, researchers show that long-tailed males expend little extra energy to attract the attention of admiring females.
Thu, 19 Mar 09
New Computer Models Successfully Link Donors And Kidney Transplant Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1r1PhA3rCxQ/090311170629.htm
New computer models capable of sifting through data for thousands of donors and patients can now link strangers in life-saving chains of kidney transplants, scientists report the New England Journal of Medicine. The transplant chains can lead to an increase in the number of procedures and overcome obstacles posed by logistics or donors who back out.
Thu, 19 Mar 09
Making Wood A Clean, Efficient Energy Source With New Process
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o3SyQ7376VQ/090311134802.htm
Is wood the new coal? Some researchers now think so, and they working to turn woodchips into a substitute for coal by using a process called torrefaction that is greener, cleaner and more efficient than traditional coal burning.
Thu, 19 Mar 09
Writing After Terrorist Attack Has Positive Medium Term Effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fc4i10CQYqY/090311120435.htm
A new study has analyzed the expressive writing of terrorism victims to analyze their psychosocial processes following the terrorist attacks in New York and Madrid. Despite the cultural differences of the people involved, the results show that the feelings and thoughts experienced following this type of traumatic event are universal.
Thu, 19 Mar 09
Waking Up Dormant HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MVQTi8zQ53w/090316120848.htm
A chemical called suberoylanilide hydroxamic acid, recently approved by the FDA as a leukemia drug, has now been shown to "turn on" latent HIV, making it an attractive candidate to weed out the dormant viruses that HAART treatment misses.
Thu, 19 Mar 09
Process That Regulates Seed Germination Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/39U0nrgqB9A/090311170637.htm
Researchers have determined a process that regulates activity of genes that control seed germination and seedling development. They discovered the step involved in keeping seeds from germinating in adverse conditions such as freezing temperatures or drought, a factor in the survival of plant species.
Thu, 19 Mar 09
New Test Successfully Identifies Life-threatening Heart Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tZiQTNpb09Y/090311170633.htm
A new immunohistochemical test is reliable in diagnosing a dangerous arrhythmic heart disease known as arrhythmogenic right ventricular cardiomyopathy.
Thu, 19 Mar 09
Microbial Societies Do Not Like Oligarchy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kKvf7DpuojY/090312093914.htm
Bacteria and humans tend to live in highly diverse and complex communities. Most interestingly, bacteria and humans appear to prefer to live in a democracy. A new article reports that initial high community evenness is a key factor in preserving functional stability of an ecosystem in the face of selective stress.
Wed, 18 Mar 09
More Evidence That Intelligence Is Largely Inherited: Researchers Find That Genes Determine Brain's Processing Speed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/al_dJpRt59k/090317142841.htm
A new type of brain imaging scanner shows that intelligence is strongly influenced by the quality of the brain's axons or wiring that sends signals throughout the brain. The faster the signaling, the faster the brain processes information. And since the integrity of the brain's wiring is influenced by genes, the genes we inherit play a far greater role in intelligence than was previously thought.
Wed, 18 Mar 09
Goodbye Needle, Hello Smoothie: New Generation Oral Vaccine Uses Dairy Probiotics To Protect Against Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/85FQAI9k-yA/090317162846.htm
Instead of a shot, someday getting vaccinated against disease may be as pleasant as drinking a yogurt smoothie. A researcher has developed a new oral vaccine using probiotics, the healthy bacteria in dairy products. He has successfully used the vaccine to create immunity to anthrax. He also is developing a breast cancer vaccine using probiotics and vaccines for various infectious diseases. Delivering the vaccine to the gut produces the most robust immune response.
Wed, 18 Mar 09
Robot Sub Searches For Signs Of Melting 60 Km Into An Antarctic Ice Shelf Cavity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MAvXUDNQt70/090317113818.htm
Autosub, a robot submarine built and developed in the UK, has successfully completed a high-risk campaign of six missions traveling under an Antarctic glacier. Autosub has been exploring Pine Island Glacier, a floating extension of the West Antarctic ice sheet, using sonar scanners to map the seabed and the underside of the ice as it juts into the sea. Scientists hope to learn why the glacier has been thinning and accelerating.
Wed, 18 Mar 09
Scientists Discover Why A Low GI Meal Makes You Feel Full
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5ZjUh74HdKY/090317201139.htm
Eating a meal with a low GI (glycemic index) increases gut hormone production which leads to suppression of appetite and the feeling of fullness. Researchers studied the effects of a low versus high GI meal on levels of gut hormones. This is the first study to provide clues as to how a low GI meal produces satiety.
Wed, 18 Mar 09
Engineer Devises Ways To Improve Gas Mileage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bA34zzXaAI8/090317125230.htm
A mechanical engineer is developing techniques that will lessen our monetary pain at the pump by reducing the drag of vehicles. Drag is an aerodynamic force that is the result of resistance a body encounters when it moves in a liquid or gaseous medium (such as air). Reduction in drag means less fuel would be required to overcome the fluid resistance encountered by the moving vehicle.
Wed, 18 Mar 09
Vitamin D May Not Be The Answer To Feeling SAD
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WcXsZEgcZWo/090317142847.htm
A lack of Vitamin D, due to reduced sunlight, has been linked to depression and the symptoms of Seasonal Affective Disorder, but new research shows there is no clear link between the levels of vitamin D in the blood and depression.
Wed, 18 Mar 09
Clues To A Secret Of Life Found In Meteorite Dust
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q-FNN3kaAB8/090317153047.htm
NASA scientists analyzing the dust of meteorites have discovered new clues to a long-standing mystery about how life works on its most basic, molecular level.
Wed, 18 Mar 09
Brain Abnormality Found In Boys With Attention Deficit Hyperactivity Disorder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bcn5tn7VBP4/090317142845.htm
Researchers trying to uncover the mechanisms that cause attention deficit hyperactivity disorder and conduct disorder have found an abnormality in the brains of adolescent boys suffering from the conditions, but not where they expected to find it.
Wed, 18 Mar 09
Engineering Flu Vaccines: New Method Could Improve Vaccines For Both Seasonal Flu And Bird Flu
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7tyV5fbcbTI/090317125219.htm
Scientists have developed a new computerized method of testing the effectiveness of both bird flu and seasonal flu vaccines. Tests suggest the computerized approach can better identify vaccines that are effective against multiple flu strains. Data from bird flu outbreaks and more than 30 years of seasonal flu records were used to confirm the findings.
Wed, 18 Mar 09
Low Vitamin D Levels Associated With Several Risk Factors In Teenagers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9L2JVZknGh0/090311153406.htm
Low levels of vitamin D were associated with increased risk of high blood pressure, high blood sugar and metabolic syndrome in teenagers. The highest levels of vitamin D were found in whites, the lowest levels in blacks and intermediate levels in Mexican-Americans.
Wed, 18 Mar 09
Developing Fruit Fly Embryo Is Capable Of Genetic Corrections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kR4mIqJv9F0/090309201259.htm
Animals have an astonishing ability to develop reliably in spite of variable conditions during embryogenesis. New research addresses how living things can develop into precise, adult forms when there is so much variation present during their development stages.
Wed, 18 Mar 09
Mood Player Sorts Music By Moods, Blends Images To Music Rhythms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rC906dXedSw/090317095026.htm
Melancholic songs, dance rhythms or romantic background music? The mood player can recognize musical characteristics and sort songs according to moods. It also blends in suitable images to the rhythm of the music.
Wed, 18 Mar 09
Elephant Shark Genome Sequence Leads To Discovery Of Color Perception In Deep-sea Fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NHuhO0NypsQ/090317162844.htm
The elephant shark, a primitive deep-sea fish that belongs to the oldest living family of jawed vertebrates, can see color much like humans can. This discovery may enhance scientists' understanding of how color vision evolved in early vertebrates over the last 450 million years of evolution.
Wed, 18 Mar 09
Brain Damage Found In Cognitively Normal People With Alzheimer's Marker
http://feeds.sciencedaily.com/~r/sciencedaily/~3/beWUYKVkzgM/090310173556.htm
Researchers have linked a potential indicator of Alzheimer's disease to brain damage in humans with no signs of mental impairment. Although their cognitive and neurological assessments were normal, study participants with lower levels of a substance known as amyloid beta 42 in their cerebrospinal fluid had reduced whole brain volumes, suggesting that Alzheimer's changes might already be damaging their brains.
Wed, 18 Mar 09
Longest Nanowires Ever Made May Lead To Better Fuel Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p80d82macDw/090311153412.htm
Researchers are reporting production of the longest platinum nanowires ever made — an advance that they say could speed development of fuel cells for cars, trucks, and other everyday uses. The wires, 1/50,000 the width of a human hair, are thousands of times longer than any previously made, according to a report in Nano Letters. The creation of long platinum nanowires could soon lead to the development of commercially viable fuel cells by providing significant increases in both the longevity and efficiency of fuel cells.
Wed, 18 Mar 09
Fishing For Microdeletions That Predispose An Embryo To Develop Cancer Syndromes In Later Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Esa0bPObORA/090310221818.htm
Researchers have used a common laboratory technique for the first time to detect genetic changes in embryos that could predispose the resulting children to develop certain cancer syndromes. Current preimplantation genetic diagnosis techniques can detect mutations in very small bits of genes or DNA, but, until now, it wasn't easy to detect deletions involving whole genes or long sections of DNA in embryos.
Wed, 18 Mar 09
Forceful New Method To Sensitively Detect Toxins, Proteins, Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zXJZyx7qdw8/090316111403.htm
Scientists recently reported the detection of toxins with unprecedented speed, sensitivity, and simplicity. The approach can sense as few as a few hundred molecules in a drop of blood in less than 10 minutes, with only four simple steps from sample to answer.
Wed, 18 Mar 09
Guitarists' Brains Swing Together
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cV3VkH6nMF4/090316201501.htm
When musicians play along together it isn't just their instruments that are in time -- their brain waves are too. Research published in the journal BMC Neuroscience shows how EEG readouts from pairs of guitarists become more synchronized, a finding with wider potential implications for how our brains interact when we do.
Wed, 18 Mar 09
Animal Families With The Most Diversity Also Have Widest Range Of Size
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_7S43YDv_kM/090317200944.htm
Somewhere out there in the ocean, SpongeBob SquarePants has a teeny-tiny cousin and a humongous uncle. That's just what one would expect from a new analysis of body sizes across all orders of animal life recently conducted by researchers.
Wed, 18 Mar 09
Folic Acid Supplements Linked To Higher Risk Of Prostate Cancer, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PWV7UggnlOY/090310161436.htm
Men who took a daily folic acid supplement of 1 mg daily had more than twice the risk of prostate cancer compared with men who took a placebo.
Wed, 18 Mar 09
New Technique Developed To Date Forensic Death Based On Corpse Microorganisms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qz_YYcxoDEY/090312093706.htm
This system, related to thermo-microbiology, will permit to determine more accurately the time of a death which has not occurred under controlled natural conditions or as a consequence of a crime. The purpose of the project was to establish the initial methodological basis to create a protocol of general application and provide new complementary tools to the existing criminalistic techniques.
Wed, 18 Mar 09
First Reported Case In The World: 7-Year-Old Girl Has Six Organs Removed For Tumor Surgery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LEfhL3-UUOE/090311181651.htm
A 7-year-old girl from Long Island, NY, is on her way home a little more than four weeks after receiving a historic surgery that involved the removal and partial re-implantation of six organs in order to resect an abdominal tumor that otherwise would be inoperable.
Wed, 18 Mar 09
Tree-eating Bugs Seen By Satellite As They Denude Invasive Tamarisk Trees In Southwest U.S.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JLuQVJJfGkM/090310084729.htm
More than 150 years after a small Eurasian tree named tamarisk or saltcedar started taking over river banks throughout the US Southwest, saltcedar leaf beetles were unleashed to defoliate the exotic invader. Now scientists say their new study shows it is feasible to use satellite data to monitor the extent of the beetle's attack on tamarisk, and whether use of the beetles may backfire with unintended environmental consequences.
Wed, 18 Mar 09
Explaining Trends In Heart Attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GK7IeG0AEhw/090311131614.htm
A report in Circulation from the Framingham Heart Study, which compared acute myocardial infarction incidence in 9824 men and women over four decades, has proposed an explanation for the apparent paradox of improved prevention, falling mortality rates but stable rates of hospitalization.
Wed, 18 Mar 09
Key Sperm-binding Proteins Cloned
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3IMu8FDK8Ag/090317113816.htm
New treatments for infertility could be closer to reality. According to a study published in the journal Molecular Human Reproduction, for the first time researchers have cloned, produced and purified a protein important for sperm maturation, termed Binder of Sperm, which may have implications for both fertility treatments and new methods of male contraception.
Wed, 18 Mar 09
Small Molecules Block Cancer Gene
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y760AdBTdlk/090310152351.htm
Finding molecules that block the activity of the oncogene Stat 3 (signal transducer and activator of transcription) required screening literally millions of compounds, using computers that compared the structure of the cancer-causing gene to those of the small molecules.
Wed, 18 Mar 09
Rock Rose Leaves And Olive And Date Pits Make Up New Anti-pesticide Formula
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fT7Vl1iiJrU/090312153328.htm
A Spanish-Moroccan research team has developed an ecological means of reducing pesticide-related water pollution by using natural organic waste materials, such as olive and date stones, and the leaves of plants such as the rock rose and radish. This new formula could help to reduce this problem that causes damage to health and the environment.
Wed, 18 Mar 09
Genetically Distinct Carriers Of Chagas Disease-causing Parasite Live Together
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PPcXFd7ZELc/090309205319.htm
Researchers have found living together the known carrier species for the Chagas disease-causing parasite Triatoma dimidiata (also known as "kissing bugs") and a cryptic species that looks the same -- but is genetically distinct from -- the known carrier species. The two species haven't interbred for as many as 5 million years, according to a report in PLoS Neglected Tropical Diseases.
Wed, 18 Mar 09
Eutrophication Of Lake Constance Led To Genetic Changes In A Species Of Water Flea
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dsUeLuUFH8k/090310134130.htm
Ecological changes caused by humans affect natural biodiversity. For example, the eutrophication of Greifensee and Lake Constance in the 1970s and 1980s led to genetic changes in a species of water flea which was ultimately displaced. Despite the fact that water quality has since been significantly improved, this species has not been re-established.
Wed, 18 Mar 09
Mansions In Pompeii: Ideal Measurements Of A Pre-Roman Model
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rPyfqDkgPfA/090311085313.htm
Pre-Roman atrium houses exhibited a striking number of similarities as part of a long Italic building tradition. A Dutch researcher has analysed the measurements of primary mansions in Pompeii. As buildings were constructed according to a standard model, the adaptations to that model, required by the economical, practical and social demands of any particular project, provide a lot of information about the social significance of the houses of Pompeii’s elite.
Wed, 18 Mar 09
American Carnivores Evolved To Avoid Each Other, New Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vYuFXDYxCmw/090310100835.htm
A large-scale analysis suggests that strategies that help America's carnivores stay away from each other have been a driving force in the evolution of many of these species, influencing such factors as whether they are active daytime or nighttime, whether they inhabit forests or grasslands, or live in trees or on the ground.
Wed, 18 Mar 09
Genetic Abnormality May Increase Risk Of Blood Disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vcXaSPIyUuk/090315155102.htm
Researchers have shown for the first time that a tendency to develop some blood disorders may be inherited. Their research identifies a common genetic sequence abnormality that enhances the likelihood of acquiring a mutation in a gene linked to certain blood diseases.
Wed, 18 Mar 09
An Altitude Test For Soldiers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/da3W2xPtDR0/090311120401.htm
A student is using his knowledge of sports science to assist soldiers as they prepare to face harsh conditions in Afghanistan.
Wed, 18 Mar 09
New Way The Malaria Parasite And Red Blood Cells Interact
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s9A8NxRWAuI/090310152333.htm
Researchers have discovered a new mechanism the malaria parasite uses to enter human red blood cells, which could lead to the development of a vaccine cocktail to fight the mosquito-borne disease.
Wed, 18 Mar 09
Paper Electrified By Copper Particles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FkOwsLPWPH4/090316101518.htm
Scientists have succeeded in producing nano-sized metallic copper particles. When the size of particles is reduced to a nano-scale (one nanometer being one billionth of a meter), the properties of the material undergo substantial changes. Unlike in bulk materials, in nanoparticles the number of surface atoms is considerably greater than the number of atoms inside the material, which, among other things, makes the melting temperature of nanomaterials very low. With suitable heat treatment, the particles manufactured by the research group can be made to form electricity-conducting layers and patterns on paper.
Wed, 18 Mar 09
Depression Twice As Likely In Seizure Sufferers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w9F_0s56nzc/090316133431.htm
The prevalence of depression is almost twice as high in people with epilepsy compared to the general population.
Wed, 18 Mar 09
Where Does Consciousness Come From?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3_6dqDDTeTg/090316201459.htm
A new paper suggests that four specific, separate processes combine as a "signature" of conscious activity. By studying the neural activity of people who are presented with two different types of stimuli -- one which could be perceived consciously, and one which could not -- researchers show that these four processes occur only in the former, conscious perception task.
Wed, 18 Mar 09
Less Of A Stink In Diabetes Patients?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Eqimm6AK7GI/090316101428.htm
Hydrogen sulfide is commonly associated with smell of rotten eggs, stink bombs and blocked drains but lower blood levels of the gas are possibly linked to cardiovascular complications in some male patients with type II diabetes.
Wed, 18 Mar 09
New Protein Identified In Bacterial Arsenal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y25cN7T_dCc/090310135317.htm
Nearly a billion years ago, bacteria evolved an insidious means of infecting their hosts -- a syringe-like mechanism able to inject cells with stealthy hijacker molecules. These molecules, called virulence factors, play a sophisticated game of mimicry, imitating many of the cells' normal activities but ultimately co-opting them to serve the bacteria's needs.
Wed, 18 Mar 09
Risk Factors In Severity Of 'Flat Head Syndrome' In Babies Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Luq2wqDCoug/090310124901.htm
A new study by physician researchers identifies risk factors for the severity of asymmetrical head shapes, known as deformational plagiocephaly, or more commonly as flat head syndrome.
Wed, 18 Mar 09
Polarizers May Enhance Remote Chemical Detection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oNrDdO6zHn8/090311111019.htm
Chemists have discovered a way to lower the cost and enhance the sensitivity of a tool used for stand-off detection in harsh environments like hazardous waste spills, blast furnaces and nuclear reactors.
Wed, 18 Mar 09
Consuming A Little Less Salt Could Mean Fewer Deaths
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QEkJ8mXkKbo/090311162801.htm
A moderate decrease in daily salt intake could benefit the US population and reduce the rates of heart disease and deaths. All segments of the US population would be expected to benefit, with the largest health benefits experienced by African Americans who are more likely to have hypertension and whose blood pressure may be more sensitive to salt.
Wed, 18 Mar 09
Master Molecular Switch May Prevent The Spread Of Cancer Cells To Distant Sites In The Body
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p9hGYn_yXWc/090316133436.htm
Researchers identified a switch that might prevent cancer cells from metastasizing from a primary tumor to other organs. The switch is a protein that, when in the "on" position, maintains the normal character of cells that line the surface of organs and body cavities. These epithelial cells are the type of cell from which most solid tumors arise. When the switch is turned "off" or absent, the cells can move away from the primary tumor.
Wed, 18 Mar 09
How Cancer Cells Become More 'Gloopy' As They Die
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jgwefgXhY5U/090315155104.htm
The viscosity, or "gloopiness," of different parts of cancer cells increases dramatically when they are blasted with light-activated cancer drugs, according to new images.
Wed, 18 Mar 09
Cleaning Up Oil Spills Can Kill More Fish Than Spills Themselves
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OKhQvWqlwtQ/090316101430.htm
A new study shows that detergents used to clean up spills of diesel oil actually increase its toxicity to fish, making it more harmful.
Wed, 18 Mar 09
Tiny Samples Could Yield Big Predictive Markers For Pancreatic Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V4BWR1qxKVQ/090310155605.htm
A handful of proteins, detected in incredibly tiny amounts, may help doctors distinguish between a harmless lesion in the pancreas and a potentially deadly one. If confirmed, these biomarkers could represent reliable indicators of pancreatic cancer or precancerous pancreatic lesions, which would allow for earlier, perhaps more successful, treatments.
Wed, 18 Mar 09
Smart Heating And Cooling With Nanofluids
http://feeds.sciencedaily.com/~r/sciencedaily/~3/euANTIppyx4/090311120433.htm
Nanofluids can act as smart materials that can be switched on and off to dissipate heat efficiently or poorly.
Wed, 18 Mar 09
Stun Guns May Cause Seizures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XkFvhYLeGk8/090316173210.htm
Stun guns, in certain circumstances, may result in brain-specific complications such as seizures, according to a new case.
Tue, 17 Mar 09
Mini Dinosaurs Prowled North America
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P5egMn3zKus/090316173218.htm
Massive predators like Albertosaurus and Tyrannosaurus Rex may have been at the top of the food chain, but they were not the only meat-eating dinosaurs to roam North America, according to Canadian researchers who have discovered the smallest dinosaur species on the continent to date. Their work is also helping re-draw the picture of North America's ecosystem at the height of the dinosaur age 75 million years ago.
Tue, 17 Mar 09
Shrinking In Hippocampus Area Of Brain Precedes Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-I0YW_Vy1KI/090316173214.htm
People who have lost brain cells in the hippocampus area of the brain are more likely to develop dementia, according to a study in the journal Neurology.
Tue, 17 Mar 09
Measuring The Strength Needed To Move Chromosomes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mxVo7gleLqY/090312214107.htm
It's about as long as the width of a human hair and only half that length across. So it's tiny -- measured in millionths of a meter -- and extremely tricky to manipulate. But the meiotic spindle plays so irresistibly important a role in separating our chromosomes during cell division that scientists are compelled to try to study it.
Tue, 17 Mar 09
Genes Linked To Spinal Disc Degeneration Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/86i9IeYAbXg/090312092438.htm
Lumbar disc degeneration is an uncomfortable condition that affects millions of people, but two researchers have identified some of the genes that are causing problems.
Tue, 17 Mar 09
Black Sea Pollution Could Be Harnessed As Renewable Future Energy Source
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fJthSwuNxlo/090316075849.htm
The Black Sea harbors vast quantities of hydrogen sulfide, the toxic gas associated with the smell of rotten eggs. This noxious gas could be used as a renewable source of hydrogen gas to fuel a future carbon-free economy, according to researchers.
Tue, 17 Mar 09
NCAA Men's Basketball: Odds Are, Seedings Don't Matter After Sweet 16
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vq0j-qh1Y5k/090316092006.htm
A computer science expert says that a top-3 seeded team's odds of winning games past the Sweet 16 round of the NCAA men's basketball tournament are statistically no different than a coin flip.
Tue, 17 Mar 09
Galactic Dust Bunnies Found To Contain Carbon After All
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IjzZ20gWRUM/090316143831.htm
Stars rich in carbon complex molecules may form at the center of our Milky Way galaxy. This discovery is significant because it adds to our knowledge of how stars form heavy elements -- like oxygen, carbon and iron -- and then blow them out across the universe, making it possible for life to develop.
Tue, 17 Mar 09
DNA 'Patch' For Canine Form Of Muscular Dystrophy Developed, First Treatment For Human Muscular Dystrophy In Sight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dgOd1n8Xhb4/090316101426.htm
Using a novel genetic technology that covers up genetic errors, researchers have developed a successful treatment for dogs with the canine version of Duchenne muscular dystrophy, a paralyzing, and ultimately fatal, muscle disease.
Tue, 17 Mar 09
RNA: Master Regulator Of Motor Neuron Firing Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oqZXXYoAWg4/090315091400.htm
When the Human Genome Project was complete, DNA bowed out of the limelight and gave way to RNA as a major player in genetic regulation. Now, new findings mirror this ideological shift, revealing that one of the most important physiological events in the body — the wiring of motor neurons and muscles — is regulated at the level of RNA.
Tue, 17 Mar 09
Platelets Linked To Sepsis-related Organ Failure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ev7eyn4roWg/090310120347.htm
Scientists have identified a previously unknown contributor to organ failure in patients suffering from sepsis: platelets. The finding is the first time doctors have looked at and linked platelets to poor outcomes from this often fatal infection.
Tue, 17 Mar 09
Ultra-thin Chip Embedding For Wearable Electronics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OqAof50f6YE/090310084844.htm
Technologists have created a new 3D integration process enabling flexible electronic systems with a thickness of less than 60 micrometer. This ultra-thin chip package (UTCP) technology allows integrating complete systems in a conventional low-cost flex substrate. This paves the way to low-cost, unobtrusive wearable electronics for e.g. wearable health and comfort monitoring.
Tue, 17 Mar 09
Parents Grossly Underestimate The Influence Their Children Wield Over In-Store Purchases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yZHDFFJZcCk/090316075853.htm
The influence children wield over their parents’ purchase decisions at the point of sale is grossly underestimated by parents. According to a new study by consumer researchers twice as many purchases in supermarkets are triggered by children than their parents are aware of.
Tue, 17 Mar 09
Climate-related Changes Affect Life On The Antarctic Peninsula
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S2Wwni7JhUM/090312140848.htm
Scientists have long established that the Antarctic Peninsula is one of the most rapidly warming spots on Earth. Now, new research using detailed satellite data indicates that the changing climate is affecting not just the penguins at the apex of the food chain, but simultaneously the microscopic life that is the base of the ecosystem.
Tue, 17 Mar 09
Stem Cells Crucial To Diabetes Cure In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BUAaSmX2ECs/090316133425.htm
More than five years ago, scientists cured mice with type 1 diabetes by using a gene to induce liver cells to make insulin. "Now we know how it works," one of the researchers said. "The answer is adult stem cells."
Tue, 17 Mar 09
Old Soles: 800-year-old Shoe Soles Yield Clues About Preservation Of Leather
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lGy7RO1RnNI/090309223456.htm
Ancient garbage can be like gold to archaeologists. During excavation of an 800-year-old trash dump in Lyon, France, scientists discovered the archaeological equivalent of golden shoe soles: A trove of leather soles of shoes, which is helping scientists understand how leather stays preserved in wet, oxygen-free environments.
Tue, 17 Mar 09
Promising Data: Saving Limbs With Drug-eluting Stents
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-ff4SmIzlQE/090310100701.htm
Attempts to treat critical limb ischemia in peripheral arterial disease patients with below-the-knee angioplasty are still thwarted by restenosis (the re-narrowing of the artery at the site of angioplasty or stenting), the need for repeat treatments and the continued progression of atherosclerotic disease, leading to tissue death (gangrene) and amputation.
Tue, 17 Mar 09
Controllable Rubber Trailing Edge Flap To Reduce Loads On Wind Turbine Blades
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jiet1tRDOoo/090311085155.htm
The trailing edge of wind turbine blades can be manufactured in an elastic material that makes it possible to control the shape of the trailing edge. This will reduce the considerably dynamic loads that large wind turbine blades are exposed to during operation.
Tue, 17 Mar 09
'Short-sleepers' May Develop Blood Sugar Abnormality That Can Lead To Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QHuxJldxPwE/090311162803.htm
People who slept less than six hours a night during the work week were nearly five times more likely to develop abnormal fasting blood sugar levels over a six-year period. Impaired fasting blood glucose observed in these "short sleepers" is a possible precursor to type 2 diabetes. Researchers do not believe there is a genetic basis for their findings and hope their study leads to more research on sleep duration and its relationship to disease.
Tue, 17 Mar 09
Catching The Common Cold Virus Genome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jQAgDmwPSZ0/090316142438.htm
A new study on the virus behind nearly half of all cold infections explains how and where evolution occurs in the rhinovirus genome and what this means for possible vaccines.
Tue, 17 Mar 09
New Test Predicts Whether Mild Cognitive Impairment Will Convert To Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KmkmX8qMZao/090316133427.htm
A test capable of confirming or ruling out Alzheimer's disease has been validated and standardized. By measuring cerebrospinal fluid concentrations of two of the disease's biochemical hallmarks -- amyloid beta42 peptide and tau protein -- the test also predicted whether a person's mild cognitive impairment would convert to Alzheimer's disease over time. The test accurately ruled out Alzheimer's disease in 95.2 percent of the subjects.
Tue, 17 Mar 09
New Tool For Study Of Air Quality Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ncfVBCVBVs4/090311085406.htm
Scientists have developed a very sophisticated tool (OPANA) that evaluates the impact of the quality of air on human health with great precision.
Tue, 17 Mar 09
Patients Who Gave Up Smoking Before Surgery Had Half As Many Complications Afterwards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lq1dWANc2vg/090312093700.htm
21% of smokers who received help to quit smoking had post-op problems, compared with 41% who continued smoking. Smokers who took part in the eight-week program were more than twice as likely to be smoke free at 12 months as those in the control group with better success rates if they had a high BMI or were employed.
Tue, 17 Mar 09
Sending Out Internet Warnings For Outages, Viruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aE4MZPPGtEA/090316075847.htm
A long-overdue internet early warning system for Europe could help the region avoid deliberate or inadvertent outages, reduce the spread of new computer viruses, and ensure continuity of services.
Tue, 17 Mar 09
Pregnant With Asthma? Suspending Asthma Treatment Can Increase Risks Of Premature Birth And Hypertension, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y0TTrevUe3k/090310155559.htm
Pregnant women suffering from asthma run a greater risk of giving birth prematurely if they suspend their asthma treatments. The probability of suffering from hypertension during pregnancy also increases for women who interrupt their asthma treatment.
Tue, 17 Mar 09
Mechanism Discovered For Wind Detection In Fruit Flies' Antennae
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3p3nj95NUnQ/090312140858.htm
Tiny, lightweight fruit flies need to know when it's windy out so they can steady themselves and avoid being knocked off their feet or blown off course. But how do they figure out that it's time to hunker down? Scientists have discovered that the flies have evolved a specialized population of neurons in their antennae that let them know not only when the wind is blowing, but also the direction from which it is coming.
Tue, 17 Mar 09
Malaria Immunity Trigger Found For Multiple Mosquito Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6JyhGzrOMw4/090313110744.htm
Researchers have for the first time identified a molecular pathway that triggers an immune response in multiple mosquito species capable of stopping the development of Plasmodium falciparum-the parasite that causes malaria in humans.
Tue, 17 Mar 09
'Map Of Science' Shows Scientists' Virtual Trails Through Online Services
http://feeds.sciencedaily.com/~r/sciencedaily/~3/M2BV3wsf3XA/090311124024.htm
Scientists have produced the world's first Map of Science -- a high-resolution graphic depiction of the virtual trails scientists leave behind when they retrieve information from online services.
Tue, 17 Mar 09
New Role For Immune System Pathway In Post-heart Attack Inflammation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TDffwSwJ9nU/090309191509.htm
A study has found an unexpected new link between inflammation in heart muscle following a heart attack and a previously known enzyme called calcium/calmodulin-dependent protein kinase II or CaM kinase II. The findings also reveal the involvement of an immune system gene -- complement factor B -- that has been implicated in other inflammatory diseases.
Tue, 17 Mar 09
Key Events In Evolutionary History Revealed In Protein Structure Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dd1x6maI8Ak/090310120351.htm
A new study of proteins, the molecular machines that drive all life, also sheds light on the history of living organisms.
Tue, 17 Mar 09
Music Education Can Help Children Improve Reading Skills
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hIimRRa6Ae4/090316075843.htm
Children exposed to a multi-year program of music tuition involving training in increasingly complex rhythmic, tonal, and practical skills display superior cognitive performance in reading skills compared with their non-musically trained peers, according to a new study.
Tue, 17 Mar 09
Atmospheric 'Sunshade' Could Reduce Solar Power Generation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RMasxvB5_T0/090311124022.htm
The concept of delaying global warming by adding particles into the upper atmosphere to cool the climate could unintentionally reduce peak electricity generated by large solar power plants by as much as one-fifth, according to a new study.
Tue, 17 Mar 09
Hepatitis C: Key Molecules That Inhibit Viral Production Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mg5hRpE7G9o/090310131118.htm
Scientists found a way to inhibit viral production of the Hepatitis C virus. The advance has the potential to accelerate future research on the virus life cycle and to aid in the development of novel HVC drugs.
Tue, 17 Mar 09
Student-designed Device Provides New Way To Track Calorie Burning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zAcC4FKBnXc/090311153416.htm
Students have crafted a device that allows individuals to constantly compute the amount of calories they burn -- even as they sleep.
Tue, 17 Mar 09
MicroRNA-based Diagnostic Identifies Squamous Lung Cancer With 96 Percent Sensitivity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oyRm-hTbUGI/090310100833.htm
A new study shows for the first time that a microRNA-based diagnostic test can objectively identify squamous lung cancer with 96 percent sensitivity.
Tue, 17 Mar 09
Electronic Amplifier Capable Of Functioning In Extreme Temperatures Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EuZ0kfKeiYQ/090309210239.htm
Missions to space require "warm" boxes, which protect electronic circuitry from extreme temperatures and exposure to radiation. Electrical engineering researchers have now designed and successfully tested an electronic micro amplifier that can operate directly in the space environment without protection from a warm box.
Tue, 17 Mar 09
Stress May Cause The Brain To Become Disconnected
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DI8BEScXDyw/090316075845.htm
Does stress damage the brain? New research suggests that in learned helplessness, an animal model for depression and PTSD, stress-related reductions in synapses in the hippocampus are directly related to the emergence of depression-like behavior.
Tue, 17 Mar 09
MIT Battery Material Could Lead To Rapid Recharging Of Many Devices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zny1Egapb5Y/090311153408.htm
MIT engineers have created a kind of beltway that allows for the rapid transit of electrical energy through a well-known battery material, an advance that could usher in smaller, lighter batteries -- for cell phones and other devices -- that could recharge in seconds rather than hours.
Tue, 17 Mar 09
Hyperbaric Treatment For Autism Reports Significant Clinical Improvements
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HPi0hYE9HwA/090312205226.htm
Hyperbaric treatment for children with autism has reportedly led to improvements in the condition, though previous studies were uncontrolled. Now is the first controlled trial to report clinical improvements.
Tue, 17 Mar 09
Rabies Deaths From Dog Bites Could Be Eliminated Globally
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ODos9rDYHu8/090312150738.htm
Someone in the developing world -- particularly in rural Africa -- dies from a rabid dog bite every 10 minutes. But global elimination of this horrific disease appears to be possible, according to scientists.
Tue, 17 Mar 09
Cancerous Kidney Removed Through The Naval
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vzLA5a6ooi8/090312115051.htm
Physicians have removed a kidney from a woman diagnosed with kidney cancer, through a single opening. This is the first operation of this type carried out in Spain and one of very few performed throughout the world. Recovery time is reduced by half and the surgical results are far better than those of conventional laparoscopy.
Tue, 17 Mar 09
Random Network Connectivity Can Be Delayed, But With Explosive Results, New Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JoGGr3lulKA/090312140844.htm
A trio of mathematicians studying random networks has provided new evidence that connectivity can be appreciably delayed, but only at a cost. When it finally occurs, the transition is virtually instantaneous, like a film of water abruptly crystallizing into ice.
Tue, 17 Mar 09
Work Stress Associated With Adverse Mental And Physical Health Outcomes In Police Officers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gR44i5Ip6qw/090312165204.htm
Exposure to critical incidents, workplace discrimination, lack of cooperation among coworkers and job dissatisfaction correlated significantly with perceived work stress among urban police officers, according to a new study. Work stress was significantly associated with adverse outcomes, including depression and intimate partner abuse.
Tue, 17 Mar 09
Young Dinosaurs Roamed Together, Died Together
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JTW8gDJPDp8/090316075721.htm
A herd of young birdlike dinosaurs met their death on the muddy margins of a lake some 90 million years ago, according to a team of Chinese and American paleontologists that excavated the site in the Gobi Desert in western Inner Mongolia. The sudden death of the herd in a mud trap provides a rare snapshot of social behavior.
Tue, 17 Mar 09
Not Enough Vitamin D In The Diet Could Mean Too Much Fat On Adolescents
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PnTAPqA5QFc/090312140905.htm
Too little vitamin D could be bad for more than your bones; it may also lead to fatter adolescents, researchers say.
Tue, 17 Mar 09
Leatherback Turtle Threatened By Plastic Garbage In Ocean
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4NIFSOFOOrE/090315224258.htm
Leatherback turtles, the most widely distributed reptiles on Earth, are threatened with extinction themselves, in large part due to the carelessness of humans. A professor addresses the threat of plastics to this endangered species. Since leatherbacks prefer eating jellyfish, it's widely believed they mistake bags or other plastics for their meals.
Tue, 17 Mar 09
Steroid Doping Tests Ignore Vital Ethnic Differences In Hormone Activity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IoM4UOBxbJs/090311223427.htm
Current steroid (testosterone) doping tests should be scrapped for international sport, because they ignore vital ethnic differences in hormone activity, suggests research in the British Journal of Sports Medicine.
Tue, 17 Mar 09
Biofilms: Even Stickier Than Suspected
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dm1jj57ilLw/090312150731.htm
Researchers find evidence for evolution in a single-species biofilm, a type of bacterial colony known to resist antibiotics and clog medical devices. Older cultures tend to be hardier.
Tue, 17 Mar 09
Scientists Predict Click-through Behavior In Web Searches
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ShE14xWsLSU/090311103642.htm
In the world of search engines, clicks mean cash, and in a sluggish economy, companies can benefit by maximizing click-throughs to their Web sites from search engines.
Fri, 13 Mar 09
'Mind-reading' Experiment Highlights How Brain Records Memories
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mWGM18LTD-o/090312114754.htm
It may be possible to "read" a person's memories just by looking at brain activity, according to new research. Scientists show that our memories are recorded in regular patterns, a finding which challenges current scientific thinking.
Fri, 13 Mar 09
Gene Therapy Shows Early Promise For Treating Obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E8xWNQw4FJc/090309191858.htm
With obesity reaching epidemic levels, researchers are studying a potentially long-term treatment that involves injecting a gene directly into one of the critical feeding and weight control centers of the brain.
Fri, 13 Mar 09
New Method For Monitoring Volcanoes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LXsUgTh_3bE/090312093704.htm
Seventeen of the world's most active volcanoes have been supplied with monitoring equipment to measure their emission of sulfur dioxide.
Fri, 13 Mar 09
Well-known Enzyme Is Unexpected Contributor To Brain Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wq7oRq5jXr4/090312092436.htm
An enzyme researchers have studied for years because of its potential connections to cancer, diabetes, heart disease, hypertension and stroke, appears to have yet another major role to play: helping create and maintain the brain.
Fri, 13 Mar 09
Air Pollution: Clear Sky Visibility Over Land Has Decreased Globally, Indicative Of Increased Particulate Matter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U2z_jQ2WLl0/090312140850.htm
Scientists have compiled the first decades-long database of aerosol measurements over land, making possible new research into how air pollution changes affect climate change. Using this new database, the researchers show that visibility over land has decreased globally over the past 30 years, indicative of increasing aerosols, or airborne particulates.
Fri, 13 Mar 09
Scientists Identify Neural Circuitry Of First Impressions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k0FGvf0Ot44/090308142247.htm
Neuroscientists have identified the neural systems involved in forming first impressions of others. The findings, which show how we encode social information and then evaluate it in making these initial judgments, are reported in the journal Nature Neuroscience.
Fri, 13 Mar 09
Human-generated Sounds May Be Killing Fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yyJbOqPU1ts/090312093658.htm
Anthropogenic, or human generated, sounds have the potential to significantly affect the lives of aquatic animals - from the individual animal's well-being, right through to its reproduction, migration and even survival of the species. Marine animals could suffer detrimental effects ranging from a loss of hearing to increased stressed levels as a result of environmental noise - in ways not dissimilar to humans and land animals.
Fri, 13 Mar 09
Iron Induces Death In Tumor Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lVMA6zBbXYw/090311103607.htm
Tumor cells and healthy cells differ considerably in metabolism intensity. Scientists have now taken advantage of this difference; by releasing cellular iron, they were able to induce death selectively in tumor cells.
Fri, 13 Mar 09
New Aerosol Observing Technique Turns Gray Skies To Blue
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jawN69wRNeI/090312134635.htm
Tiny, ubiquitous particles in the atmosphere may play a profound role in regulating global climate. But the scientists who study these particles -- called aerosols -- have long struggled to accurately measure their composition, size, and global distribution. A new detection technique and a new satellite instrument called the Aerosol Polarimetry Sensor should help ease the struggle.
Fri, 13 Mar 09
Maternal Exposure To Chemical Used In Manufacture Of Non-stick Surfaces Not Linked To Low Birth Weight Or Preterm Birth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OeyvcIgEvhU/090305165037.htm
A new study found that maternal exposure to C8, a chemical used in the manufacture of non-stick surfaces, was not associated with either lowered birth weight or increased risk of preterm birth in Little Hocking, Ohio area residents.
Fri, 13 Mar 09
Hospital Mobile Phones 'Superbug' Scare
http://feeds.sciencedaily.com/~r/sciencedaily/~3/c0QG8bpw7HM/090305204324.htm
Mobile phone handsets belonging to hospital workers are covered in bacteria including the "superbug," MRSA. New research describes how mobile phones used by health-care workers may be a source of hospital-acquired infections.
Fri, 13 Mar 09
Feeling Tired? Study Finds Prevalence Of Anergia In People With Failing Hearts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pAksIwPFdbo/090311162805.htm
A noninvasive method of monitoring human activity is helping doctors and researchers shed new light on a syndrome affecting nearly 40 percent of older adults with heart failure: anergia. Anergia, or lack of energy, is a newly delineated, criterion-based geriatric syndrome that is often overlooked or dismissed by doctors and patients alike as simply a natural tiredness associated with "old age."
Fri, 13 Mar 09
Hubble Provides New Evidence For Dark Matter Around Small Galaxies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CLLOusNGPRc/090312093947.htm
NASA's Hubble Space Telescope has uncovered a strong new line of evidence that galaxies are embedded in halos of dark matter.
Fri, 13 Mar 09
Aspirin Improves Survival In Women With Stable Heart Disease, According To Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1nGeGsvFiYI/090312092440.htm
New results provide additional evidence that aspirin may reduce the risk of death in postmenopausal women who have heart disease or who have had a stroke. The study also provides new insight into aspirin dosing for women, suggesting that a lower dose of aspirin (81 milligrams, or mg) is as effective as a higher dose (325 mg).
Fri, 13 Mar 09
First Look At Genetic Dynamics Of Inbreeding Depression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u3fsiCZ6fwQ/090312125403.htm
Declines in reproductive success due to inbreeding are probably due to a few key genes that influence other genes, said an animal biology professor.
Fri, 13 Mar 09
Microbicide Promising As HIV Prevention Method For Women, Clinical Trial Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jlKJg_CkHZQ/090305121735.htm
A clinical trial involving more than 3,000 women in the US and southern Africa demonstrates for the first time the promise of a vaginal microbicide gel for preventing HIV infection in women. According to findings, one 0.5 percent dose of a microbicide designed to prevent HIV from attaching to cells in the genital tract, was 30 percent effective.
Fri, 13 Mar 09
Danger Lurks Underground For Oak Seedlings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gQW1Yizu4ls/090303161419.htm
Scientists trying to understand why oaks are starting to disappear from North American forests may need to look just below the surface to find some answers. Researchers found that pine voles, small rodents that live underground, prefer oak roots to those of other commonly growing seedlings.
Fri, 13 Mar 09
American Adults Flunk Basic Science
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S3omzgGjgpU/090312115133.htm
Are Americans flunking science? A new national survey commissioned by the California Academy of Sciences and conducted by Harris Interactive reveals that the US public is unable to pass even a basic scientific literacy test.
Fri, 13 Mar 09
High IQ Linked To Reduced Risk Of Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4K__-A5LSKk/090312140009.htm
A study of one million Swedish men has revealed a strong link between cognitive ability and the risk of death, suggesting that government initiatives to increase education opportunities may also have health benefits.
Fri, 13 Mar 09
Cleft Lip And Palate: Scientists Discover Gene Locus Associated With Deformity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QNoCdGQ8Wc4/090308142253.htm
Scientists discover the gene locus associated with cleft lip and palate. Comparing 500,000 snippets of human DNA put scientists on the right track. A genetic variant on chromosome 8 occurs with significantly higher frequency in people with cleft lip and palate than in the control group.
Fri, 13 Mar 09
What Drives Brain Changes In Macular Degeneration?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kBKBFmRzL5E/090303171447.htm
In macular degeneration, the most common form of adult blindness, patients progressively lose vision in the center of their visual field, depriving the corresponding part of the visual cortex of input. Previously, researchers discovered that the deprived neurons begin responding to visual input from another spot on the retina -- evidence of plasticity. Just how such plasticity occurred was unknown, but a new study sheds light on the underlying neural mechanism.
Fri, 13 Mar 09
High Blood Pressure Linked To Earlier Death Among African-American Breast Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wQIs5GoCGv8/090304124352.htm
A new study has shown that hypertension, or high blood pressure, is a predictor of mortality among breast cancer patients, especially those who are African-American, and that hypertension accounts for approximately 30 percent of the survival disparity between African-American and white breast cancer patients.
Fri, 13 Mar 09
Major Step Toward Less Energy Loss In New Electromagnetic Materials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5ltLOFsCZ7k/090303084047.htm
Researchers have managed for the first time to measure magnetic properties in new materials quantitatively with the help of electron microscopy -- with unparalleled precision. The secret behind the breakthrough is a successful elaboration of electron microscope technology. The findings means that the energy loss entailed in all electromagnetic materials can ultimately be minimized.
Fri, 13 Mar 09
Hatha Yoga Practice Lessens Fear Of Falling In Older Adults, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_ortAciWh0A/090309162115.htm
Researchers found promising results in an exploratory study involving yoga practice by older adults who expressed a fear of falling. After a 12-week, twice weekly hatha yoga class, taught by a professional yoga therapist, study participants reported a reduced fear of falling, increased lower body flexibility and a reduction in their leisure constraints.
Fri, 13 Mar 09
AIDS Vaccine Gets Closer: Targeting Virus' Achilles Heel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ywRc7eIM5xE/090312114801.htm
AIDS researchers may have turned a corner in their search for a HIV vaccine, taking a piece of HIV that permits the virus to enter cells, putting it on the surface of a common cold virus, and then successfully immunizing animals with it.
Fri, 13 Mar 09
Brain Tumors: New Therapy Surprisingly Successful
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ieRojMQYolM/090306103641.htm
The combination of two drugs produces a critical improvement in the treatment of certain brain tumors.
Fri, 13 Mar 09
Misplaced Metamorphosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4RNvwXegv88/090303161311.htm
Researchers have pinpointed the source of immature cells that spur misplaced bone growth. Unexpectedly, the major repository of bone-forming cells originates in blood vessels deep within skeletal muscle and other connective tissues, not from muscle stem cells themselves. The work also shows that cells important in the inflammatory response to injury trigger skeleton-stimulating proteins to transform muscle tissue into bone.
Fri, 13 Mar 09
Biomarkers Detected For Chikungunya Fever
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RTAaZJB-TyA/090304131222.htm
Three specific biomarkers provide accurate indication of severity of Chikungunya fever, emerging as threat in South-East Asia, Pacific and Europe, according to research conducted in Singapore. Since biomarkers can be easily detected and measured in blood, this finding could expedite patient identification and monitoring.
Fri, 13 Mar 09
Summer Burning May Be Option For Pasture Maintenance
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Gjt63vmWLeo/090304182109.htm
The greater duration of heat in a summer-prescribed burn provides more effective management of encroaching woody or cactus species on rangeland, scientists report. Controlling encroachments of prickly pear, mesquite, juniper and other rangeland plants that compete with grass can be pretty expensive without the use of fire in controlled burn situations.
Fri, 13 Mar 09
What I Was Doing Vs. What I Did: How Verb Aspect Influences Memory And Behavior
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hOLlk-8-WL4/090310161501.htm
If you want to perform at your peak, you should carefully consider how you discuss your past actions. A new study reveals that the way a statement is phrased (and specifically, how the verbs are used), affects our memory of an event being described and may also influence our behavior.
Fri, 13 Mar 09
Wag The Robot? Robot Responds To Human Gestures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/msEcAqWExOU/090311085058.htm
Researchers have demonstrated how a robot can follow human gestures in a variety of environments -- indoors and outside -- without adjusting for lighting. The achievement is an important step forward in the quest to build fully autonomous robots as partners for human endeavors.
Fri, 13 Mar 09
Why Anesthesia Is Associated With Cognitive Impairment And Risk Of Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FB_jJQB1ojQ/090310084840.htm
Scientists report that anesthesia induces phosphorylation of tau. Tau is a key neuronal protein involved in neurodegeneration in Alzheimer's disease (AD) and several other neurodegenerative disorders. Anesthesia has previously been found to be associated with cognitive impairment and the risk for AD. This study helps elucidate the molecular mechanisms underlying these associations.
Fri, 13 Mar 09
Surviving Lung Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BykaFvicOAc/090304160354.htm
A growing trend in the field of radiation oncology doubles a person's chances of surviving early-stage lung cancer, while making treatments easier for patients to bear by cutting the sessions from 35 by conventional radiation to only a handful using a new technique called stereotactic body radiotherapy.
Fri, 13 Mar 09
Obesity Linked To Hormone Imbalance That Impacts Sexual Quality Of Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7hjcXXp9u88/090303082815.htm
Hormonal changes and diminished sexual quality of life among obese men are related to the degree of obesity, and both are improved after gastric bypass surgery, according to a new study.
Fri, 13 Mar 09
Simple Upgrades In Rural Sanitation Could Save 1.2 Million Lives Annually
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EOfC5-pBO70/090309223207.htm
Improving rural sanitation by 65 percent could save as many as 1.2 million lives a year worldwide, scientists in Pennsylvania conclude in a new study on diarrheal disease. Their report found that developing countries in Africa and Asia would experience the greatest savings in life.
Fri, 13 Mar 09
Doctor-patient Conversations At End Of Life Associated With Lower Medical Expenses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VxdG9cXSZOM/090309161957.htm
Few physicians are eager to discuss end-of-life care with their patients. Yet such conversations may result in better quality of life for patients and could lower national health-care expenditures for cancer care alone by tens of millions dollars each year, according to a new study.
Fri, 13 Mar 09
Artificial Photosynthesis: Turning Sunlight Into Liquid Fuels Moves A Step Closer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1CVpjeV6N2E/090311103646.htm
Through photosynthesis, plants use sunlight to convert water and carbon dioxide into sugars they use for fuel. Scientists want to create an artificial version of photosynthesis to produce liquid fuels for transportation. Chemists have taken an important step towards this goal with the discovery that cobalt oxide nanocrystals can effectively carry out the critical photosynthetic reaction of splitting water molecules.
Fri, 13 Mar 09
Anesthesia Or Hypothermia: Warning For Alzheimer's Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ioARrZCr5yo/090311153418.htm
Scientists have shown that a protein associated with Alzheimer's (called "tau") builds up in brain cells at an increased rate when temperatures fall, such as when a patient is anesthetized or experiences hypothermia. This finding should be of immediate concern to surgeons, dentists and any other health care professionals who anesthetize patients with Alzheimer's or patients at an elevated risk for the disease.
Fri, 13 Mar 09
How Cranberry Products Prevent Urinary Tract Infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JFC8aa6Xcd4/090309121937.htm
Chemicals present in cranberries -- and not the acidity of cranberry juice, as previously thought -- prevent infection-causing bacteria from attaching to the cells that line the urinary tract.
Fri, 13 Mar 09
One In Seven U.S. Teens Is Vitamin D Deficient
http://feeds.sciencedaily.com/~r/sciencedaily/~3/J-OTBfdNq3Q/090311124028.htm
One in seven American adolescents is vitamin D deficient, according to a new study.
Fri, 13 Mar 09
Greatest Thing Since Sliced Bread: New Data Offer Important Clues Toward Improving Wheat Yields
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dtta_eP53TM/090310122434.htm
Breed a better crop of wheat? That's exactly what agricultural researchers hope their research will lead to. They analyzed the type of wheat commonly used to make bread in an effort to understand why it is versatile enough to be used around the world and across different climates.
Fri, 13 Mar 09
Study Tests Reliability Of More Accurate Measure Of Patient Pain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bNfGBR-qPWg/090309131721.htm
A new study shows the reliability a newly developed device for assessing pain. This device is called the continuous pain score meter. It enables continuous real time pain score measurement, which is used to obtain exact measurements of pain intensity in humans during the course of a procedure. The findings provide more detailed information on patients' pain perception and may lead to better pain management for certain clinical procedures.
Fri, 13 Mar 09
Spotless Mind? Fear Memories In Humans Weakened With Beta-blocker Propranolol
http://feeds.sciencedaily.com/~r/sciencedaily/~3/34Fp9TCbEKw/090311103611.htm
Dutch scientists have successfully reduced the fear response. They weakened fear memories in human volunteers by administering the beta-blocker propranolol. Interestingly, the fear response did not return over the course of time. Until recently, it was assumed that a fearful memory could not be deleted. However, researchers have now demonstrated that changes can indeed be effected in the emotional memory of human beings.
Fri, 13 Mar 09
'Personalized' Genome Sequencing Reveals Coding Error In Gene For Inherited Pancreatic Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kLvS3QBrzsw/090305141637.htm
Scientists have used "personalized genome" sequencing on an individual with a hereditary form of pancreatic cancer to locate a mutation in a gene called PALB2 that is responsible for initiating the disease. The discovery marks their first use of a genome scanning system to uncover suspect mutations in normal inherited genes.
Fri, 13 Mar 09
New ‘Pollution Radar’ Developed To Provide Unprecedented Picture Of Urban Smog
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XOJV_zaZ4jU/090309122159.htm
Scientists and industrialists have invented a sophisticated new air quality measuring device that can act as a pollution radar over cities. The technology can be placed on satellites to provide unprecedented detail of gases in the atmosphere. Researchers are also developing ground-based instruments this year, which will be able to create 3D maps of atmospheric gases.
Fri, 13 Mar 09
Migraine Mice Exhibit Enhanced Excitatory Transmission At Cortical Synapses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eevJzuYI_cs/090311124018.htm
New research is unraveling the complex brain mechanisms associated with disabling migraine headaches. The study reveals that perturbation of the delicate balance between excitation and inhibition may make the brain more vulnerable to migraine attacks.
Fri, 13 Mar 09
Synthetic Gene Circuit Allows Precise Dosing Of Gene Expression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hp8J3v4Y9aA/090310152339.htm
Researchers have crafted a gene circuit that permits precise tuning of a gene's expression in a cell, an advance that should allow for more accurate analysis of the gene's role in normal and abnormal cellular function.
Fri, 13 Mar 09
Live Fast, Die Young? Maybe Not
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H_rS0kQ6yEg/090309162121.htm
The theory that a higher metabolism means a shorter lifespan may have reached the end of its own life. A new study found that mice with increased metabolism live just as long as those with slower metabolic rates.
Thu, 12 Mar 09
Spin Battery: Physicist Develops Battery Using New Source Of Energy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QGIYOO1m6t8/090311162807.htm
Scientists have been able to prove the existence of a "spin battery," a battery that is "charged" by applying a large magnetic field to nano-magnets in a device called a magnetic tunnel junction. The electrical current made in this process is called a spin polarized current and finds use in a new technology called "spintronics."
Thu, 12 Mar 09
Blood Test For Alzheimer's Possible, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zwE3VBgK3LM/090311103613.htm
Researchers have revealed a direct relationship between two specific antibodies and the severity of Alzheimer's disease symptoms, raising hopes that a diagnostic blood test for the devastating disorder is within reach.
Thu, 12 Mar 09
Buckyballs Could Keep Water Systems Flowing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JG_WdkCSSWU/090305080139.htm
Microscopic particles of carbon known as buckyballs may be able to keep the nation's water pipes clear in the same way clot-busting drugs prevent arteries from clogging up.
Thu, 12 Mar 09
How Stem Cells Develop Into Blood Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vEg5lgTVIj8/090305121651.htm
How messages sent within stem cells through a specific communication pathway can trigger the cells to specialize and become blood cells in humans has been discovered by scientists of the McMaster Stem Cell and Cancer Research Institute.
Thu, 12 Mar 09
Scientists Closer To Making Invisibility Cloak A Reality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P7ftkII9Iss/090305121733.htm
J.K. Rowling may not have realized just how close Harry Potter's invisibility cloak was to becoming a reality when she introduced it in the first book of her best-selling fictional series in 1998. Scientists, however, have made huge strides in the past few years in the rapidly developing field of cloaking. Cloaking involves making an object invisible or undetectable to electromagnetic waves.
Thu, 12 Mar 09
Cannabis Use, Dangerous Driving Behaviors Interrelated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ml4uKDfzec4/090311111006.htm
Thrill-seeking young men are more likely to drive under the influence of cannabis and engage in reckless driving, according to a new study. Men who are sensation-seekers, an average age of 27 and impulsive will consider taking the wheel after consuming cannabis more often than older peers.
Thu, 12 Mar 09
Neuroscientists Map Intelligence In The Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/57VhTM_xY14/090311124020.htm
Neuroscientists have conducted the most comprehensive brain mapping to date of the cognitive abilities measured by the Wechsler Adult Intelligence Scale, the most widely used intelligence test in the world. The results offer new insight into how the various factors that comprise an "intelligence quotient" score depend on particular regions of the brain.
Thu, 12 Mar 09
Muscular Dystrophy: Stem Cells That Repair Injured Muscles Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m-HVfRh3ce0/090305121655.htm
Scientists have identified a type of skeletal muscle stem cell that contributes to the repair of damaged muscles in mice, which could have important implications in the treatment of injured, diseased or aging muscle tissue in humans, including the ravages of muscular dystrophy.
Thu, 12 Mar 09
First Right Whale Sedation Enables Disentanglement Effort
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fjorR6JBkH4/090311180335.htm
For the first time ever, rescuers used a new sedation delivery system to help free an entangled North Atlantic right whale. This is the first time in worldwide history a free-swimming large whale was successfully sedated in the wild.
Thu, 12 Mar 09
Antibody Key To Treating Variant Creutzfeldt-Jakob Disease (vCJD)
http://feeds.sciencedaily.com/~r/sciencedaily/~3/10z5tWDOpfE/090304104244.htm
Scientists have determined the atomic structure of the "binding" between a brain protein and an antibody that could be key to treating patients with diseases such as variant CJD.
Thu, 12 Mar 09
Wenchuan Earthquake Mudslides Emit Greenhouse Gas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DhqFhOPE5tg/090302183250.htm
Mudslides that followed the May 12, 2008, Wenchuan, China earthquake may cause a carbon-dioxide release in upcoming decades equivalent to two percent of current annual global carbon emissions from fossil fuel combustion, a new study shows.
Thu, 12 Mar 09
Obesity Linked To Dangerous Sleep Apnea In Truck Drivers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9ZDThtgecxc/090311111002.htm
Truck crashes are a significant public health hazard causing thousands of deaths and injuries each year, with driver fatigue and sleepiness being major causes. A new study has confirmed previous findings that obesity-driven testing strategies identify commercial truck drivers with a high likelihood of obstructive sleep apnea and suggests that mandating OSA screenings could reduce the risk of truck crashes.
Thu, 12 Mar 09
Long-term Ozone Exposure Linked To Higher Risk Of Death, Finds Nationwide Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/19J1aR-izzY/090311170627.htm
A study analyzing two decades of data for 450,000 people across the nation found that long-term exposure to ground-level ozone, a major component of smog, raises the risk of death from respiratory ailments. It is the first major study connecting chronic exposure to ozone to elevated mortality rates, and could be used in future evaluations of federal standards for acceptable ozone levels.
Thu, 12 Mar 09
Magnetic Nanoparticles Navigate Therapeutic Genes Through The Body
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V7qY9C8ohbU/090305080518.htm
Scientists have developed a highly sensitive measuring method with which the efficiency of gene transfer in cases if cardiovascular diseases can be investigated. The researchers determine, accurate to the picogram per cell, the quantity of magnetic particles that are situated on the gene -- and thus also the quantity of the therapeutically effective genes or cells. By means of the magnetic method it is possible to dramatically increase the efficiency of the gene transfer in comparison to the non-magnetic method.
Thu, 12 Mar 09
'Nanostitching' Could Strengthen Airplane Skins, More
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cc8aQ-tD_zQ/090304131224.htm
MIT engineers are using carbon nanotubes only billionths of a meter thick to stitch together aerospace materials in work that could make airplane skins and other products some 10 times stronger at a nominal increase in cost.
Thu, 12 Mar 09
Discovery Of New Retinal Gene Involved In Childhood Blindness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LIc4yrZzy8M/090305121643.htm
Scientists have discovered a new gene that causes Leber congenital amaurosis and retinitis pigmentosa, two devastating forms of childhood blindness.
Thu, 12 Mar 09
Nanostructure Boosts Efficiency In Energy Transport
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uONbnsBrNQY/090303082819.htm
Chemists have grown a titanium nanostructure that delivers a 33 percent gain in power-collecting efficiency. Part catalyst and part conductor, the novel material could serve clean power applications like water-splitting, where a titanium catalyst has been shown to separate and store hydrogen and oxygen gases.
Thu, 12 Mar 09
Diagnostic Errors: New Focus Of Patient Safety Experts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sHsThGXjlSE/090310161432.htm
Johns Hopkins patient safety experts say it's high time for diagnostic errors to get the same attention from medical institutions and caregivers as drug-prescribing errors, wrong-site surgeries and hospital-acquired infections.
Thu, 12 Mar 09
Best-ever View Of The Cosmos In Gamma Rays
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QXJtBbWTb_I/090311111021.htm
A new map combining nearly three months of data from NASA's Fermi Gamma-ray Space Telescope is giving astronomers an unprecedented look at the high-energy cosmos. To Fermi's eyes, the universe is ablaze with gamma rays from sources ranging from within the solar system to galaxies billions of light-years away.
Thu, 12 Mar 09
Brain Tumor Treatment May Increase Number Of Cancer Stem-like Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZGfQOspZ0K8/090305121641.htm
A new study suggests that the standard treatment for a common brain tumor increases the aggressiveness of surviving cancer cells, possibly leaving patients more vulnerable to tumor recurrence. The research provides valuable insight into the molecular mechanisms that enable cancer stem-like cells to escape cytotoxic treatment and repopulate the tumor.
Thu, 12 Mar 09
New Insights From Cellular Signals Pinpoint A Therapeutic Target To Tackle Cardiovascular Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-7AJSBQCj5I/090227072654.htm
Scientists have identified a new signaling process in the heart. This discovery will help scientists and doctors to understand the complex biochemistry that causes the abnormal thickening of the heart muscle -- called hypertrophy -- in response to conditions such as high blood pressure and coronary heart disease.
Thu, 12 Mar 09
Infection Rates Low With New Cataract Surgery Techniques
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_lVOfiAzFIw/090302214652.htm
It is well known that people with light skin and numerous moles and freckles -- which develop when skin is over-exposed to UV light -- are at higher risk for skin cancer (cutaneous melanoma). But the evidence was less clear on whether moles and freckles also indicate a higher risk of uveal melanoma, cancer of the eye's iris, ciliary body, or choroid.
Thu, 12 Mar 09
'Information Agents' For Faster, Better Emergency Response
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q2f4ZVMWXW4/090304091225.htm
"Information agents" have been developed that could prove invaluable in decision-making and directing the actions of the emergency services in the immediate aftermath of natural disasters or terrorist attacks.
Thu, 12 Mar 09
Close Relationships Can Perpetuate Individual Health Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TbE5hvK_Zhc/090311111004.htm
Human problems rarely occur in a vacuum, but persist as part of ongoing social interaction in which causes and effects are interwoven. One person's behavior can set the stage for what another does.
Thu, 12 Mar 09
Biologists Find World-record Colony Of Amoeba Clones In Texas Cow Pasture
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tCk5i-QbxLg/090311131608.htm
A study of microbes from a Houston-area cow pasture has confirmed once again that everything is bigger in Texas, even the single-celled stuff. The tests revealed the first-ever report of a large natural colony of amoeba clones -- a relatively Texas-sized expanse measuring at least 12 meters across. While clonal colonies of larger organisms like aspen trees and sea anemones are common, the colony of Dictyostelium discoideum is unprecedented.
Thu, 12 Mar 09
Diabetes Linked To Cognitive Deterioration
http://feeds.sciencedaily.com/~r/sciencedaily/~3/367zSpz1Lug/090305121659.htm
Blindness, renal failure, stroke and heart disease are potential complications of type 2 diabetes, which currently afflicts more than 15 million Americans. Now research has found more worrying news -- type 2 diabetes can be a risk factor accelerating cognitive decline and dementia.
Thu, 12 Mar 09
Antioxidants In Midwestern Black Raspberries Influenced By Where They Grow
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CzkZq0X_0yc/090226160753.htm
Black raspberries have been studied for decades by scientists and medical researchers interested in the fruits' apparent ability to limit the onset or severity of degenerative diseases, including cancer. The prospective health benefits of black raspberries and other antioxidant-rich produce has led to increased consumer awareness and demand for fresh, locally produced fruit. This lead researchers to investigate whether antioxidant levels are influenced by where black raspberries are grown.
Thu, 12 Mar 09
New Potential Therapeutic Target Discovered For Genetic Disorder -- Barth Syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2FvmZvaq5Is/090302183258.htm
Researchers may have discovered a new targeted intervention for Barth Syndrome. The new study shows the benefits of targeted intervention with an iPLA2-VIA inhibitor that prevents a major symptom of the disease- cardiolipin deficiency.
Thu, 12 Mar 09
New System Minimizes Pesticide Pollution Of Aquifers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mRr1Dwfsi-o/090306084639.htm
Scientists have developed and patented a encapsulation system for controlled release of herbicides and pesticides. The encapsulation retains the pesticide in a liposome and clay structure, that hold and slowly release the pesticide. The main advantages are a longer effective period for the compound and less pollution of the environment, because the pesticide is not dragged with the water.
Thu, 12 Mar 09
Consumers Stop Buying As Number Of Options Increase
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0NQwrmQJ7A0/090311111008.htm
It is a common belief that having more options is better, and that people tend to go to stores that provide them with more choices. However, a new study in the journal Psychology & Marketing reveals that when people cannot easily determine which option is preferable, they are more likely to leave the store empty-handed.
Thu, 12 Mar 09
Nature’s Origami: Protein Folding Is 'Hit And Miss' Process
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ixInwnbW_Uc/090302090433.htm
Sometimes known as "nature's origami", the way that proteins fold is vital to ensuring they function correctly. But researchers at the University of Leeds have discovered this is a 'hit and miss' process, with proteins potentially folding wrongly many times before they form the correct structure for their intended purpose.
Thu, 12 Mar 09
Oh, My Aching Back: Give Me A Shot Of Ozone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MgzVNQgby2E/090309092832.htm
A minimally invasive interventional radiology treatment -- that safely and effectively uses oxygen/ozone to relieve the pain of herniated disks -- will become standard in the United States in the next few years, researchers predict.
Thu, 12 Mar 09
Airborne Ecologists Help Balance Delicate African Ecosystem
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ufF6q0YqksE/090302182954.htm
The African savanna is world famous for its wildlife, especially the iconic large herbivores such as elephants, zebras, and giraffes. But managing these ecosystems and balancing the interests of the large charismatic mammals with those of other species has been a perpetual challenge for park and game mangers. Now a new study reports the successful test of new remote-sensing technology to monitor the impact of management decisions on the savanna ecosystem.
Thu, 12 Mar 09
Thumbs Down For New Testosterone Patch To Boost Women's Sex Drive
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7gzs8gqEe3Q/090302213824.htm
A new testosterone patch, designed to pep up a woman's flagging sex drive after womb and ovary removal, may not work, and its long term safety is not proven, says Drug and Therapeutics Bulletin.
Thu, 12 Mar 09
Corn-for-ethanol's Carbon Footprint Critiqued
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BpuWeyuL-Co/090302183321.htm
To avoid creating greenhouse gases, it makes more sense using today's technology to leave land unfarmed in conservation reserves than to plow it up for corn to make biofuel, according to a comprehensive study.
Thu, 12 Mar 09
Many Terminally Ill Patients Feel Abandoned By Their Doctors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-cakH1BjzL8/090309161953.htm
Terminally ill patients and their family caregivers often feel abandoned by their doctors and feel a sense of "unfinished business" with them, according to a new study.
Thu, 12 Mar 09
Toxoplasmosis Parasite May Trigger Schizophrenia And Bipolar Disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1gTyteC_QZI/090311085151.htm
Scientists have discovered how the toxoplasmosis parasite may trigger the development of schizophrenia and other bipolar disorders. They have shown that the parasite may play a role in the development of these disorders by affecting the production of dopamine -- the chemical that relays messages in the brain controlling aspects of movement, cognition and behavior.
Thu, 12 Mar 09
Stem Cells Could Halt Osteoporosis, Promote Bone Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PiNOOu9_TBM/090304114252.htm
While interferon gamma sounds like an outer space weapon, it's actually a hormone produced by our own bodies, and it holds great promise to repair bones affected by osteoporosis. Researchers now explain that tweaking a certain group of multipotent stem cells (called mesenchymal stem cells) with interferon gamma may promote bone growth.
Thu, 12 Mar 09
New Design Means Cheaper, More Sustainable Construction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O1SSt3Zsz6k/090303082813.htm
People are always looking for ways to make something less expensive and more environmentally friendly -- and researchers have now figured out how to do both of those things at once when raising the large scale buildings of the future.
Thu, 12 Mar 09
Immune Reaction To Metal Debris Leads To Early Failure Of Joint Implants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NRXwEj1Tq34/090304160358.htm
Researchers have identified a key immunological defense reaction to the metals in joint replacement devices, leading to loosening of the components and early failure.
Thu, 12 Mar 09
Engineers Ride 'Rogue' Laser Waves To Build Better Light Sources
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_5Wt4QkPf6g/090305121729.htm
A freak wave at sea is a terrifying sight. Seven stories tall, wildly unpredictable, and incredibly destructive, such waves have been known to emerge from calm waters and swallow ships whole. But rogue waves of light -- rare and explosive flare-ups that are mathematically similar to their oceanic counterparts -- have recently been tamed by a group of researchers.
Thu, 12 Mar 09
High Prevalence Of Child Marriage In India Fuels Fertility Risks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yQQoNZtUw7w/090309191513.htm
Despite India's economic and educational reform efforts in the last decade, the prevalence of child marriage remains high, fueling the risks of multiple unwanted pregnancies, pregnancy terminations and female sterilizations, according to a new study.
Thu, 12 Mar 09
Dead Gene Comes Back To Life In Humans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MRMdDQXaLnI/090305204321.htm
Researchers have discovered that a long-defunct gene was resurrected during the course of human evolution. This is believed to be the first evidence of a doomed gene -- infection-fighting human IRGM -- making a comeback in the human/great ape lineage.
Thu, 12 Mar 09
New Soldier In War On Cancer: The Blind Mole Rat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UUYfxOkTz8E/090304104248.htm
If someone ever calls you a "dirty rat," consider it a compliment. A new discovery shows that cellular mechanisms used by the blind mole rat to survive the very low oxygen environment of its subterranean niche are the same as those that tumors use to thrive deep in our tissues.
Thu, 12 Mar 09
Huge Corn Plants Developed: Doubling A Gene In Corn Results In Giant Biomass
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N1H412ZF4Yg/090302120106.htm
A plant geneticist has developed a corn plant with enormous potential for biomass, literally. It yields corn that would make good silage, the researcher said, due to a greater number of leaves and larger stalk, which could also make it a good energy crop.
Thu, 12 Mar 09
Drugs That Act On 'Fasting Signal' May Curb Insulin Resistance In Obese
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mPUdfejK7II/090303123804.htm
A molecular switch found in the fat tissue of obese mice is a critical factor in the development of insulin resistance, report scientists. Previously found to increase glucose production by the liver during fasting, the culprit -- a protein known as CREB -- is also activated in fat tissue of obese mice where it promotes insulin resistance.
Thu, 12 Mar 09
NASA Study Finds 'Pre-Existing Condition' Fueled Killer Cyclone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JgZlk13_9pw/090302111153.htm
A "pre-existing condition" in the North Indian Ocean stoked the sudden intensification of last year's Tropical Cyclone Nargis just before its devastating landfall in Burma, according to a new NASA/university study. The cyclone became Burma's worst natural disaster ever and one of the deadliest cyclones of all time.
Thu, 12 Mar 09
Making Super Mario More Realistic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T05zlK0XcYk/090304091504.htm
Computer games are being developed at an ever more rapid pace, and the technical demands are rising, not least regarding graphics boards. Researchers have now found a solution to a problem that often arises when new computer games are constructed, namely how you can efficiently make sure that the animated figures don’t run right through each other.
Wed, 11 Mar 09
3-D View Of Remote Galaxies -- When Universe Was Half Its Current Age
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lsNUlL_xqwk/090310120400.htm
Astronomers have obtained exceptional 3-D views of distant galaxies, seen when the Universe was half its current age, by combining the twin strengths of the NASA/ESA Hubble Space Telescope's acute eye, and the capacity of ESO's Very Large Telescope to probe the motions of gas in tiny objects. By looking at this unique "history book" of our Universe, scientists hope to solve the puzzle of how galaxies formed in the remote past.
Wed, 11 Mar 09
Bacteria-killing Enzyme Cures Mice With Fatal Pneumonia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NshpZifjmk4/090302221316.htm
Before the advent of antibiotics, pneumonia claimed so many lives -- and was so feared -- that it was called the "captain of the ship of death." Now, at a time when the new antibiotics have proved futile against resistant strains of bacteria, researchers are using a different tactic to keep this ship at bay. Instead of using synthetic weapons, they are using nature's: an enzyme that has proved so effective at killing Streptococcus pneumoniae that it has been put on the front lines in the battle against infectious disease.
Wed, 11 Mar 09
New Genre Of Sugar-coated 'Quantum Dots' For Drug Delivery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F5do4LYD8yQ/090309223403.htm
Scientists in Switzerland are reporting an advance that could help tap the much-heralded potential of "quantum dots"-- nanocrystals that glow when exposed to ultraviolet light -- in the treatment of cancer and other diseases.
Wed, 11 Mar 09
Clues To Beating Hearing Loss
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Yah2GYXnMqc/090304092012.htm
Researchers have made a significant step forward in understanding the causes of some forms of deafness.
Wed, 11 Mar 09
Bioencapsulation: Creating A Safe Haven For Sensitive Ingredients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eJQq_CgcbvM/090226105130.htm
Consumers are becoming more health conscious and food manufacturers are pursuing innovative ways to produce food that can deliver specific health benefits without compromising the taste or quality of their products. Incorporation of bioactive compounds, or 'nutraceuticals', into food systems can provide a simple way to develop novel 'functional foods' with health-promoting and/or disease-preventing properties.
Wed, 11 Mar 09
Young Women May Be Drinking Heavily To Get Attention Of Opposite Sex, But Men Not Impressed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JbV0ROV0dpE/090309140654.htm
College women may be drinking to excess to impress their male counterparts on campuses across the country, but a new study suggests most college men are not looking for a woman to match them drink for drink.
Wed, 11 Mar 09
Salt Might Be 'Nature's Antidepressant'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kEu3RYvyN-4/090310152329.htm
Most people consume far too much salt, and now a researcher has discovered one potential reason we crave it: it might put us in a better mood.
Wed, 11 Mar 09
Breath Or Urine Analysis May Detect Cancer, Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u2fvU4QxnFo/090310152343.htm
A researcher is developing a device that will analyze breath or urine samples for volatile markers inside the body that indicate disease. These volatile markers, such as alkanes, acetones or nitric oxide, give doctors clues about what is happening inside the body and can be used as a diagnostic tool.
Wed, 11 Mar 09
New Fish Discovered In Antarctic Ocean
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qoZvi7Au5Zc/090305150919.htm
The new species of Antarctic fish, Gosztonyia antarctica, has been discovered at a depth of 650 meters in the Bellingshausen Sea in the Antarctic Ocean, an area which has not been studied since 1904 and where the fauna is "completely" unknown.
Wed, 11 Mar 09
Obesity Associated With Detrimental Changes In Ovary
http://feeds.sciencedaily.com/~r/sciencedaily/~3/upL_w_K6vnI/090303082817.htm
Obese women have alterations in their ovaries which might be responsible for an egg's inability to make an embryo, according to a new study.
Wed, 11 Mar 09
Wildfires: Why California Should Consider Australia's 'Prepare, Stay And Defend' Policy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AVQVif1J9Ks/090226102308.htm
As debate rages over the safety of the Australian policy of encouraging willing and able residents to stay and defend their property from wildfires, fire researchers say that the strategy is worth consideration in California and other regions in the United States.
Wed, 11 Mar 09
Why Some People Don’t Heed Tornado And Other Severe Weather Warnings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1G8t0itO4Lc/090310115809.htm
The U.S. National Weather Service has analyzed forecasting performance and public response during the second deadliest tornado outbreak in U.S. history. The report addresses a key area of concern: why some people take cover while others try to ride out severe weather. Some people stay put during tornadoes, believing that 'bad things only happen to other people.'
Wed, 11 Mar 09
Rising Sea Levels Set To Have Major Impacts Around The World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IY5k7YehCUI/090310104742.htm
New research shows that the upper range of sea level rise by 2100 could be in the range of about one meter, or possibly more. This means that if emissions of greenhouse gases is not reduced quickly and substantially, even the best case scenario will hit low lying coastal areas housing one in ten humans on the planet hard.
Wed, 11 Mar 09
Human Vaccine Against Bird Flu Within Reach With New Discovery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aH9jZUcNlOo/090302183126.htm
A vaccine to protect humans from a bird flu pandemic is within reach after a new discovery. The discovery reveals how boosting T cell immunity could better protect humans from a bird flu pandemic.
Wed, 11 Mar 09
Inactivity Of Proteins Behind Longer Shelf Life When Freezing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jz9D4SggDJ4/090303084053.htm
Frozen biological material, for example food, can be kept for a long time without perishing. A new study is close to providing answers as to why.
Wed, 11 Mar 09
Universal Vaccination Associated With Decreased Canadian Cases Of Most Deadly Strain Of Meningitis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TJIPLdtqd1g/090302183252.htm
Universal childhood vaccination against meningococcal C appears to reduce Canadian incidence of the most deadly strain of bacterial meningitis, reports new research.
Wed, 11 Mar 09
Mechanism To Increase Magnetic Response Of Ferromagnetic Semiconductor Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/46Z4aKxLlT0/090225132555.htm
When squeezed, electrons increase their ability to move around. In compounds such as semiconductors and electrical insulators, such squeezing can dramatically change the electrical- and magnetic- properties. Now scientists have manipulated electron mobility and pinpointed the mechanism controlling the strength of magnetic interactions -- and hence the material's magnetic ordering temperature.
Wed, 11 Mar 09
What's In A Name? Perhaps More (or Less) Money
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jtF_zYGboKI/090310120357.htm
Before employers have a chance to judge job applicants on their merits, they may have already judged them on the sound of their names. According to a study published in the Journal of Labor Economics, immigrants to Sweden earn more money after they change their foreign-sounding names.
Wed, 11 Mar 09
Genetics Of Fear: Specific Genetic Variations Contribute To Anxiety Disorders, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9UGCJc_W_b8/090310161503.htm
Individuals with specific polymorphisms may be more susceptible to anxiety disorders by being more prone to developing fear and being less likely to overcome that fear by common cognitive behavioral treatments which are based on the extinction principle.
Wed, 11 Mar 09
Potential For Resolving Type 2 Diabetes With Bariatric Surgery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7Aam7xSTyXE/090303082809.htm
The primary risk factor for type 2 diabetes is obesity. 90 percent of all diabetics are overweight or obese. Medical research indicates that surgery to reduce obesity can completely eliminate all manifestations of diabetes. Investigators analyzed 621 studies from 1990 to April of 2006, which showed that 78.1 percent of diabetic patients had complete resolution and diabetes was improved or resolved in 86.6 percent of patients as the result of bariatric surgery.
Wed, 11 Mar 09
Experimental Fire Provides Knowledge About Damage After Forest Fires
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v5qaqeo8wy0/090226110816.htm
An experimental fire that was deliberately set in Portugal has provided researchers in the Netherlands with the first information about the soil erosion that occurs after forest fires. A research team set fire to 10 ha of heathland under controlled conditions. The experiment is not only important for areas in the Mediterranean that have burned or are threatened with fire, but also for Australia, where it is expected that the drinking water supply will be threatened following the recent forest fires.
Wed, 11 Mar 09
Transcriptional Factor SOX9 Renders Melanomas Sensitive To Retinoic Acid And Stops Tumor Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4o38J_mFspo/090309191501.htm
New research indicates that overexpression of the transcription factor SOX9 restores the sensitivity of mouse and human melanomas to the anticancer agent retinoic acid, thereby stopping tumor growth. The authors suggest that a combined therapeutic strategy, increasing the expression of SOX9 while simultaneously treating with RA, may provide new hope to effectively treat RA-resistant cancers such as melanoma.
Wed, 11 Mar 09
First Responders: Random Antenna Arrays Boost Emergency Communications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RcVp69itQWY/090225151337.htm
First responders could boost their radio communications quickly at a disaster site by setting out just four extra transmitters in a random arrangement to significantly increase the signal power at the receiver, according to theoretical analyses, simulations and proof-of-concept experiments.
Wed, 11 Mar 09
Lengthy Daily Stints In Front Of The TV Linked To Doubled Childhood Asthma Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DuWTehgBV8k/090302213822.htm
Young children who spend more than two hours glued to the TV every day double their subsequent risk of developing asthma, indicates new research.
Wed, 11 Mar 09
Yellowstone Alga Found To Detoxify Arsenic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mKmKxnPrpNc/090309191850.htm
Scientists have found Yellowstone alga that detoxifies arsenic. The alga -- a simple one-celled algae called Cyanidioschyzon -- thrives in extremely toxic conditions and chemically modifies arsenic that occurs naturally around hot springs.
Wed, 11 Mar 09
DNA Differences May Influence Risk Of Hodgkin Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jz3VrUGTDBw/090309092943.htm
A new analysis has found that certain variations in genes that repair DNA can affect a person's risk of developing Hodgkin disease.
Wed, 11 Mar 09
New Discovery Paves The Way For New Diagnosis Of Serious Lung Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qHGaICzkr8Q/090302090429.htm
The discovery of a previously unknown protein in the cells of the lower air ways brings new potential for early diagnosis of a serious lung disease. The findings can also provide new knowledge of the cause of common diseases like asthma and chronic bronchitis.
Wed, 11 Mar 09
Old Cells Work Differently: Molecular Control Of Protein Elimination In Old Cells Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DEWJ-fTG0Q8/090302091235.htm
The agglutination and accumulation of proteins in nerve cells are major hallmarks of age-related neurodegenerative illnesses such as Alzheimer's disease. Cellular survival thus depends on a controlled removal of excessive protein. Scientists have now discovered exactly how specific control proteins regulate protein breakdown during the aging process.
Wed, 11 Mar 09
Students Benefit From Depth, Rather Than Breadth, In High School Science Courses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8x6ZZ3T0TSk/090305131814.htm
High school students who study fewer science topics, but study them in greater depth, have an advantage in college science classes over their peers who study more topics and spend less time on each.
Wed, 11 Mar 09
Live Evolution Witnessed In Controlled Environment Of Microbial Predator And Prey
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8sroL2f70X8/090305150917.htm
For the first time, scientists have demonstrated that a coevolutionary process is dependent on ecological conditions. Researchers in France studied two bacteria -- a predator and a prey -- over 300 generations in a controlled environment. Under certain conditions, the prey becomes resistant to the predator, which itself evolves so that it can attack this new prey. In addition, the scientists issued a warning against the previously envisaged use of this predator (Bdellovibrio bacteriovorus) as a "living antibiotic" because, like other antibiotics, this could lead to the selection of resistant pathogenic bacteria.
Wed, 11 Mar 09
Red Wine Vs. White? Both Equal Offenders In Breast-cancer Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T3gJzF_SUvI/090309092838.htm
The largest study of its kind to evaluate the effect of red versus white wine on breast cancer risk concludes that both are equal offenders when it comes to increasing breast cancer risk.
Wed, 11 Mar 09
Tiny Radio Transmitters On Skis Help Competitive Skiers Analyze Every Move
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kJP_Z3FwKkc/090309122203.htm
Whether slalom or alpine skiing, competitive skiing is all about thousandths of a second. Hence, professional athletes must constantly refine their technique. Small radio transmitters will make it possible to analyze pros’ habits more closely.
Wed, 11 Mar 09
Protein Complex Shown To Play Pivotal Role In Stem Cell Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/034il7XwzwM/090302183122.htm
Scientists have identified a protein complex important in controlling whether embryonic stem cells retain their ability to become any cell in the body -- a quality called pluripotency -- or instead embark on a pathway of maturation and specialization.
Wed, 11 Mar 09
Airborne Fungi Linked To Asthma Epidemic In Puerto Rico
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CS5z3qB6mp0/090302115757.htm
High levels of airborne fungi have been linked with the unusually common incidence of asthma in Puerto Rico.
Wed, 11 Mar 09
Popular Kids Earn More When They Grow Up
http://feeds.sciencedaily.com/~r/sciencedaily/~3/imaTNW_tYdc/090309171922.htm
Being popular with your peers at school could mean you earn more as an adult.
Wed, 11 Mar 09
Why People Often Get Sicker When They Are Stressed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0TrBUBWaXXM/090309191507.htm
A newly discovered receptor in a strain of Escherichia coli might help explain why people often get sicker when they're stressed.
Wed, 11 Mar 09
'Miraculous' Effects, Pain Relief Of Osteoplasty Shown For Those Suffering From Metastatic Bone Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qurUp-mfHfM/090309092836.htm
Osteoplasty -- a highly effective minimally invasive procedure to treat the painful effects of metastatic bone disease by injecting bone cement to support weakened bones -- provides immediate and substantial pain relief, often presenting individuals who are suffering terribly with the miraculous so-called "Lazarus effect," according to researchers. Interventional radiologists often couple osteoplasty with heat or cold treatments to kill tumor nerves, if needed.
Wed, 11 Mar 09
Heat Could Be Stifling Turtles’ Swimming Abilities In Australia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0cQc9HyHxuA/090227095000.htm
It seems we're not the only ones struggling to adapt to the summer weather -- Australian researchers have found the increased temperatures may be affecting turtles too. Scientists found that green turtle hatchlings from Heron Island weren't swimming as well as expected.
Wed, 11 Mar 09
Medical Researchers Test Bedside Monitoring Of Brain Blood Flow And Metabolism In Stroke Victims
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IWyI5E8fIOE/090302133308.htm
Scientists have completed the first successful demonstration of a noninvasive optical device to monitor cerebral blood flow in patients with acute stroke, a leading cause of disability and death.
Wed, 11 Mar 09
Nanosensors Quickly Detect Possible DNA Mutations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/edSeG2TTRQw/090302090427.htm
Researchers have developed electrochemical sensors that, amongst other functions, enable the detection of possible mutations in DNA in a more rapid manner that has been achieved to date.
Wed, 11 Mar 09
Feeling Down And Out Could Break Your Heart, Literally
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s62FMvJSwrQ/090309191852.htm
New data suggest that relatively healthy women with severe depression are at increased risk of cardiac events, including sudden cardiac death and fatal coronary heart disease. Researchers found that much of the relationship between depressive symptoms and cardiac events was mediated by cardiovascular disease risk factors, such as high blood pressure, high cholesterol and smoking.
Tue, 10 Mar 09
Rare Single Top Quark Discovered In Collider Experiments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o1jX75bHeyQ/090309131725.htm
Scientists have observed particle collisions that produce single top quarks. The discovery of the single top confirms important parameters of particle physics, including the total number of quarks, and has significance for the ongoing search for the Higgs particle at Fermilab's Tevatron, currently the world's most powerful operating particle accelerator.
Tue, 10 Mar 09
Epstein-Barr Virus May Be Associated With Progression Of Multiple Sclerosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XADT-P5l1a8/090302183248.htm
Epstein-Barr virus, the pathogen that causes mononucleosis, appears to play a role in the neurodegeneration that occurs in persons with multiple sclerosis, researchers have shown.
Tue, 10 Mar 09
Genetic Study Finds Treasure Trove Of New Lizards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-h356Q3DRLg/090303210053.htm
Scientists have discovered that there are many more species of Australian lizards than previously thought, raising new questions about conservation and management of Australia's native reptiles.
Tue, 10 Mar 09
Influenza A Becoming Increasingly Resistant To Drug Oseltamivir
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rEPFSE0vW4c/090302115747.htm
Influenza A viruses (H1N1 subtype) that are resistant to the drug oseltamivir circulated widely in the US during the 2007-2008 influenza season, with an even higher prevalence of drug resistance during the current 2008-2009 influenza season, according to a new study.
Tue, 10 Mar 09
Cleansing Toxic Waste With Vinegar
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Oyx1a9xDrm8/090303084334.htm
Engineers and environmental scientists are developing methods of helping contaminated water to clean itself by adding simple organic chemicals such as vinegar.
Tue, 10 Mar 09
Compulsive Hoarding Poses Safety And Psychological Risks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kBMShC16Oj8/090309211632.htm
Most of us save things -- memorabilia, collectibles, items from our childhood or from our children. But for more than an estimated million Americans, the saving may get out of hand and cross over to a psychiatric condition known as compulsive hoarding.
Tue, 10 Mar 09
Coral Reefs May Start Dissolving When Atmospheric Carbon Dioxide Doubles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Kt3yNT88DPY/090309162125.htm
Rising carbon dioxide in the atmosphere and the resulting effects on ocean water are making it increasingly difficult for coral reefs to grow, say scientists. A new study warns that if carbon dioxide reaches double pre-industrial levels, coral reefs can be expected to not just stop growing, but also to begin dissolving all over the world.
Tue, 10 Mar 09
Teenage Boys Who Eat Fish At Least Once A Week Achieve Higher Intelligence Scores
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tQ9xU-Vs64A/090309092957.htm
Male teenagers who ate fish at least once a week at the age of 15 showed a 6 percent increase in intelligence scores at 18 and those who ate it more than once a week showed an 11 percent increase.
Tue, 10 Mar 09
Potential Therapeutic Target In Osteosarcoma Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8sui8rkhgug/090227200616.htm
A receptor known to be active in bone metastases, but previously unexplored in primary bone tumors, is a potential therapeutic target in osteosarcoma, investigators report in Cancer Research.
Tue, 10 Mar 09
Gray Wolves No Longer To Be Listed As Threatened And Endangered Species In Western Great Lakes, Portion Of Northern Rockies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/miacZ0MhE8E/090309205747.htm
The U.S. Secretary of the Interior has affirmed the decision by the U.S. Fish and Wildlife Service to remove gray wolves from the list of threatened and endangered species in the western Great Lakes and the northern Rocky Mountain states of Idaho and Montana and parts of Washington, Oregon and Utah. Wolves will remain a protected species in Wyoming.
Tue, 10 Mar 09
Gifted Children Shape Their Personalities According To Social Stigma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y9z539GwW70/090303102614.htm
Gifted youths already know what they want to be when they grow up. They usually choose to study applied sciences, but when they are asked why they made their choices, they are not able to explain. "Society identifies the gifted child with high intelligence and is often hasty to identify this intelligence with specific subjects, especially exact or prestigious sciences. The maturing children are quick to adopt this identity, renouncing the process of building self-identity."
Tue, 10 Mar 09
Severe Headaches Associated With Higher Temperatures, Lower Barometric Pressures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NmazV7UXfao/090309161951.htm
A study of more than 7,000 patients provides some of the first large-scale data on how environmental conditions -- weather, as well as air pollution -- influence headache pain.
Tue, 10 Mar 09
Children Of Older Fathers Perform Less Well In Intelligence Tests During Infancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GKTlPfd65rg/090309092941.htm
Children of older fathers perform less well in a range of cognitive tests during infancy and early childhood, according to a study published this week in the open-access journal PLoS Medicine.
Tue, 10 Mar 09
Big-hearted Fish Reveals Genetics Of Cardiovascular Condition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zDzD773jAJk/090225132534.htm
Researchers have found that a human vascular condition called cerebral cavernous malformation is caused by leaky junctions between cells in the lining of blood vessels. By combining studies with zebrafish and mice, they found that the aberrant junctions are the result of mutated or missing proteins in a novel biochemical process, the so-called "Heart-of-glass" CCM pathway.
Tue, 10 Mar 09
Injectable Birth Control Causes Significant Weight Gain And Changes In Body Mass, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3F_3uTWBdi8/090304182111.htm
Women using depot medroxyprogesterone acetate, commonly known as the birth control shot, gained an average of 11 pounds and increased their body fat by 3.4 percent over three years, according to researchers.
Tue, 10 Mar 09
Hemlock Trees Dying Rapidly, Affecting Forest Carbon Cycle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VlWw6vXhkRM/090226122730.htm
The hemlock woolly adelgid is killing hemlock trees faster than expected in the southern Appalachians and rapidly altering the carbon cycle of these forests according to a new study in the journal Ecosystems.
Tue, 10 Mar 09
Suicide In The Workplace 'Contagious,' Swedish Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VwCJawy6bfg/090309093157.htm
It has previously been known that the risk of suicide increases if a family member has taken his/her life. This connection is also confirmed in a new study from Stockholm University in Sweden and the University of Oxford. But the study also reveals something that was previously unknown: suicide in the workplace increases the risk of more people killing themselves. The contagious effect, which is statistically significant only in the case of men, is greater than that of suicide in the family, since more individuals are involved.
Tue, 10 Mar 09
Novel Electric Signals In Plants Induced By Wounding Plant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pWapGsXfz80/090309105030.htm
Scientists have discovered a new form of electrical signaling in different plant species. This electrical signal -- called "system potential" -- is induced by wounding of the plant tissue and then passed from leaf to leaf.
Tue, 10 Mar 09
Ecstasy Could Help Patients With Post-traumatic Stress Disorder, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zFHdusUsgdw/090309092953.htm
Ecstasy may help suffers of post-traumatic stress learn to deal with their memories more effectively by encouraging a feeling of safety, according to an article in the Journal of Psychopharmacology.
Tue, 10 Mar 09
White-nose Syndrome Death In Bats: First Prevention Proposed By Ecologists
http://feeds.sciencedaily.com/~r/sciencedaily/~3/60QBqpXBkYE/090305102709.htm
White-nose syndrome is a poorly understood condition that, in the two years since its discovery, has spread to at least seven Northeastern states and killed as many as half a million bats. Now researchers have suggested the first step toward a measure that may help save the affected bats: providing localized heat sources to the hibernating animals.
Tue, 10 Mar 09
Being Overweight Worsens Osteoarthritis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MmRL3WyYeD4/090305080145.htm
Being fat increases the risk of primary joint replacement in osteoarthritis. A new study found that increased waist circumference and body mass index were associated with the risk of both knee and hip joint replacement.
Tue, 10 Mar 09
Models Present New View Of Nanoscale Friction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L0nYqDet0EM/090225132237.htm
Friction is a force that affects any application where moving parts come into contact; the more surface contact there is, the stronger the force. At the nanoscale -- mere billionths of a meter -- friction can wreak havoc on tiny devices made from only a small number of atoms or molecules. With their high surface-to-volume ratio, nanomaterials are especially susceptible to the forces of friction.
Tue, 10 Mar 09
Regular Family Meals Result In Better Eating Habits For Adolescents
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AQEjRY04f44/090309104710.htm
Good eating habits can result when families eat together. Researchers report on one of the first studies to examine the long-term benefits of regular family meals for diet quality during the transition from early to middle adolescence. In general, the study found adolescents who participated in regular family meals reported more healthful diets and meal patterns compared to adolescents without regular family meals.
Tue, 10 Mar 09
Amazonian Amphibian Diversity Traced To Andes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SjtUKKSXO-k/090309205313.htm
Colorful poison frogs in the Amazon owe their great diversity to ancestors that leapt into the region from the Andes Mountains several times during the last 10 million years, a new study suggests.
Tue, 10 Mar 09
Vitamin A Signals Offer Clues To Treating Autoimmunity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8u9ckzInOmE/090301181421.htm
Dendritic cells, the microbe-sensing alarms of the immune system, can send out a "red alert" to stimulate immunity, or a "calm down" message that tones down excessive immunity that might damage the host. The "calm down" message makes use of vitamin A, providing an explanation for the link between vitamin A deficiency and autoimmune diseases. Bacteria and viruses that cause chronic infections, such as tuberculosis, hepatitis C and HIV, may have evolved strategies that skew this balance of signals in their favor.
Tue, 10 Mar 09
European Satellites Provide New Insight Into Ozone-depleting Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xUmKrVb74Ag/090225132343.htm
Using data from the satellite-based MIPAS and GOME-2 instruments, scientists have for the first time detected important bromine species in the atmosphere. These new measurements will help scientists to better understand sources of ozone-depleting species and to improve simulations of stratospheric ozone chemistry.
Tue, 10 Mar 09
Penile Extender Increased Flaccid Length By Almost A Third, Clinical Study Reports
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lQw0BnyW4yQ/090305080516.htm
Men who used a penile extender every day for six months saw the length of their flaccid penis increase by 32% and their erectile function increase by up to 36%. Researchers at the University of Turin suggest that the treatment could provide a viable alternative to surgery, as the results were significant and patient satisfaction with the technique was high. The measurements were taken six months after the men had stopped using the device.
Tue, 10 Mar 09
200,000 Rice Mutants Available Worldwide For Scientific Investigation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zJxzJQSe6Sw/090304160402.htm
Researchers have estimated the number of different rice mutants needed to have a mutant for every gene as somewhere between 180,698 and 460,000. Two hundred thousand rice mutants are now available and have been mapped.
Tue, 10 Mar 09
Mortality Risk Greater For Elderly Women Who Nap Daily
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YtqlRj5uUok/090304121138.htm
A new study has found that older women who reported taking daily naps had a significantly greater risk of dying. The results of the study are in contrast to a number of prior studies which have indicated that daily napping improves health.
Tue, 10 Mar 09
Quantum Doughnuts Slow And Freeze Light At Will: Fast Computing And 'Slow Glass'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vsHN7YU230k/090309105026.htm
Researchers have found a way to use doughnuts shaped by-products of quantum dots to slow and even freeze light, opening up a wide range of possibilities from reliable and effective light-based computing to the possibility of "slow glass."
Tue, 10 Mar 09
Secrets Of C. Difficile's Protective Shell Revealed, Paving The Way For New Superbug Drugs And Vaccines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8oOursMs-is/090227072652.htm
The detailed structure of a protective 'jacket' that surrounds cells of the Clostridium difficile superbug, and which helps the dangerous pathogen stick to human host cells and tissues, is revealed in part in Molecular Microbiology.
Tue, 10 Mar 09
British Butterfly Reveals Role Of Habitat For Species Responding To Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EhIbsXK3KVE/090224230711.htm
A new study shows it is possible to predict how fast a population will spread and reveals the importance of habitat conservation in helping threatened species survive environmental change. The research tracks the recovery of a rare British butterfly over 18 years and offers hope for the preservation of other species.
Tue, 10 Mar 09
Busy B's: Lymphocyte Uses Multiple Mechanisms To Shape Immune Response
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MMc9dDM5rws/090226122724.htm
New research expands our understanding of how a type of immune cell called a B lymphocyte enables the immune system to mount a successful defense against an intestinal parasite. The study provides some intriguing insight into the variety of mechanisms implemented by B cells to protect the host from infection.
Tue, 10 Mar 09
Calculating Gene And Protein Connections In Parkinson's Disease Model
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EgH3vRDrfdQ/090222142132.htm
Researchers have created an algorithm that meshes existing data to produce a clearer step-by-step flow chart of how cells respond to stimuli. Using this new method, scientists have analyzed alpha-synuclein toxicity to identify genes and pathways that can affect cell survival. Misfolded copies of the alpha-synuclein protein in brain cells are a hallmark of Parkinson's disease.
Tue, 10 Mar 09
Untreated Psychiatric Disorders Common In Single Mothers On Welfare
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VfAt7ePJ8WQ/090302183114.htm
Urban single mothers nearing the end of their welfare eligibility appear more likely to have substance use and psychiatric disorders than women in the general population, and often do not receive treatment, according to a new report.
Tue, 10 Mar 09
Not So Sweet: Over-consumption Of Sugar Linked To Aging
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vK4-p318HlA/090305204328.htm
Biochemists discovered to their surprise that if they removed the gene for a glucose sensor from yeast cells, they lived just as long as those living on a glucose-restricted diet. In short, the fate of these cells doesn't depend on what they eat but what they think they're eating.
Tue, 10 Mar 09
Building Strong Bones: Running May Provide More Benefits Than Resistance Training, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bel1CiqkfHI/090227080005.htm
Osteoporosis affects more than 200 million people worldwide and is a serious public health concern, according to the National Osteoporosis Foundation. Resistance training often is recommended to increase and prevent loss of bone mineral density, although previous studies that examined the effects of resistance training in men produced varied results.
Tue, 10 Mar 09
It's In His Smell: Female Moths Can Discern Male's Ancestry, Age And Possibly Reproductive Fitness From His Smell
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zEqJLW5_fJc/090302213820.htm
A female moth selects a mate based on the scent of his pheromones. An analysis of the pheromones used by the European corn borer shows that females can discern a male's ancestry, age and possibly reproductive fitness from the chemical cocktail he exudes.
Tue, 10 Mar 09
Discovery Provides Hope For Sufferers Of Disfiguring Bone Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ps21DR4fMX4/090302091233.htm
Researchers have made a major genetic discovery that could lead to the effective treatment for sufferers of craniosynostosis - a severe childhood bone disease.
Tue, 10 Mar 09
Shredding Corn Silage Could Produce More Ethanol At Less Cost
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ozH3epbwxgo/090223221541.htm
A researcher has found a way to get more bang for fewer bucks when it comes to processing cellulosic material to make ethanol. By shredding corn stover instead of chopping, as is commonly done, about 40 percent less energy is needed to gain access to more of the material stored in the plant.
Tue, 10 Mar 09
Young Adults With Post-traumatic Stress Disorder May Be More Likely To Attempt Suicide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MSey-p_b38U/090302183116.htm
Posttraumatic stress disorder (PTSD) -- but not exposure to traumatic events without the development of PTSD -- may be associated with subsequent attempted suicide in young adults, according to a new report.
Tue, 10 Mar 09
Stem Cells Replace Stroke-damaged Tissue In Rats
http://feeds.sciencedaily.com/~r/sciencedaily/~3/59fJ5PKrPng/090308222732.htm
Effective stem cell treatment for strokes has taken a significant step forward today as scientists reveal how they have replaced stroke-damaged brain tissue in rats. The team of scientists show that by inserting tiny scaffolding with stem cells attached, it is possible to fill a hole left by stroke damage with brand new brain tissue within seven days.
Tue, 10 Mar 09
Gene Mutations That Cause Childhood Brain Cancer Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oEADVHhebAI/090308142249.htm
Researchers have discovered eight similar genes that, when mutated, appear to be responsible for medulloblastoma -- the most common of childhood brain cancers.
Tue, 10 Mar 09
Crafty Australian Crayfish Cheat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/izloqwEuAaM/090227072419.htm
Australian and British scientists have found how puny crayfish cheat. Biologists explain that weak males cheat by intimidating stronger foes with their large claws. However, this shouldn't work because the tough guys should get wise. Wilson shows that large claws are risky; they make it harder to evade predators. Cheats get away with it because crayfish wouldn't bother to have big claws unless they really meant it.
Tue, 10 Mar 09
Young Athletes Most At Risk Of Knee Injuries Reap Big Benefit From Warm-Up Exercises
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6iiZeqqX7kU/090305171328.htm
Pick an option: the prospect of months on crutches and a season on the sidelines, versus taking 10 minutes to do a short, simple, structured warm up. For athletes, particularly school-aged athletes, the choice should be clear.
Tue, 10 Mar 09
Nanotechnology: Bristly Spheres As Capsules for Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yPWhqLSHDrQ/090306103639.htm
Researchers have produced amphiphilic hybrid particles made of a water-insoluble inorganic nanoparticle at the core surrounded by a bristle-like layer of hydrophilic polymer chains. The polymer-coated spheres offer a simple method for the controlled production of superstructures, such as vesicles to be used to encapsulate drugs or as contrast agents.
Tue, 10 Mar 09
The 'Clean Plate Club' May Turn Children Into Overeaters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bg8UpSPVcFg/090306103649.htm
Preschoolers whose parents forced them to clean their plates, ate 41 percent more snacks when at school. Part of this is because preschool snack time was one place where they could regain control of what they ate. Unfortunately, it was for the worse and not the better.
Mon, 9 Mar 09
It's Raining Pentagons? Novel Ice Structure May Help Seed Clouds And Cause Rain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X4tB9ktSTHE/090308142251.htm
Scientists have discovered a novel one dimensional ice chain structure built from pentagons that may prove to be a step toward the development of new materials which can be used to seed clouds and cause rain.
Mon, 9 Mar 09
Missing Link Between Fructose, Insulin Resistance Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k8KWzjVCSBg/090303123802.htm
A new study in mice sheds light on the insulin resistance that can come from diets loaded with high-fructose corn syrup, a sweetener found in most sodas and many other processed foods.
Mon, 9 Mar 09
New Building Design Withstands Earthquake Simulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/diK54b46BYs/090227080558.htm
Researchers have simulated an off-the-charts earthquake in a laboratory to test their new technique for bracing high-rise concrete buildings. Their technique passed the test, withstanding more movement than an earthquake would typically demand.
Mon, 9 Mar 09
Moderate Alcohol Intake Associated With Bone Protection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WCnkWnCPTY0/090303102733.htm
In an epidemiological study of men and post-menopausal women primarily over 60 years of age, regular moderate alcohol intake was associated with greater bone mineral density (BMD). Associations were strongest for beer and wine and, importantly, BMD was significantly lower in men drinking more than two servings of liquor per day.
Mon, 9 Mar 09
Chicken Manure Biodegrades Crude Oil In Contaminated Soil
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WdLjPbCXKiY/090303102729.htm
It is an unlikely application, but researchers in China have discovered that chicken manure can be used to biodegrade crude oil in contaminated soil. Writing in the International Journal of Environment and Pollution the team explains how bacteria in chicken manure break down 50 percent more crude oil than soil lacking the guano.
Mon, 9 Mar 09
Older Adults Control Emotions More Easily Than Young Adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9MFjJZF8vow/090304114240.htm
A research study found that regulating emotions -- such as reducing negative emotions or inhibiting unwanted thoughts -- is a resource-demanding process that disrupts the ability of young adults to simultaneously or subsequently perform tasks.
Mon, 9 Mar 09
Why Dreams Are So Difficult To Remember: Precise Communication Discovered Across Brain Areas During Sleep
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vMOp4o0A-cw/090225132249.htm
By listening in on the chatter between neurons in various parts of the brain, researchers have taken steps toward fully understanding just how memories are formed, transferred, and ultimately stored in the brain -- and how that process varies throughout the various stages of sleep.
Mon, 9 Mar 09
Blood Test Predicts Chance Of Dementia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gIIU8MLTgtQ/090306084358.htm
Researchers have discovered the amount of growth factor progranulin in blood is a predictor of Frontotemporal Dementia (FTD). Progranulin plays a major role in the survival of brain cells. People producing less progranulin have higher risk of contracting FTD. The researchers developed a test, measuring the amount of progranulin in the blood thus predicting a person's risk. This offers possibilities for early detection.
Mon, 9 Mar 09
Transparent Zebrafish A Must-see Model For Atherosclerosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XfMe31KgI3M/090305164350.htm
We usually think of fish as a "heart-healthy" food. Now fish are helping researchers better understand how heart disease develops in studies that could lead to new drugs to slow disease and prevent heart attacks.
Mon, 9 Mar 09
Certain Combined Medications Following Heart Attack May Increase Risk Of Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GOzg3rmpLMw/090303161307.htm
Following an acute coronary syndrome such as a heart attack or unstable angina, patients who receive a medication to reduce the risk of gastrointestinal bleeding that may be associated with the use of the antiplatelet drug clopidogrel and aspirin have an increased risk of subsequent hospitalization for acute coronary syndrome or death, according to a new study.
Mon, 9 Mar 09
Insecticidal Toxin Useless Without 'Friendly' Bacteria Accomplices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ukMQcgqN7N8/090303193952.htm
The toxin produced by the bacterium Bacillus thuringiensis is a popular insecticide used to control pest moths and butterflies, and in some GM pest-proof crops. In a study published in BMC Biology, researchers show that its effectiveness against a number of susceptible Lepidopteran species depends on the presence of the normally "friendly" bacteria that colonize their guts. Without these bacteria, the Bt toxin can become impotent in some species.
Mon, 9 Mar 09
Fast-food Density And Neighborhood Walkability Linked To Residents' Weight And Waist Size
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m7LSvVUI0FQ/090303161431.htm
Scientists show that a high-density of fast food outlets was associated with an increase of three pounds in weight and .8 inches in waist circumference among neighborhood residents who frequently ate at those restaurants.
Mon, 9 Mar 09
Sea Level Rises Offer New Explanation For Puzzling Biological Divide Along Malay Peninsula
http://feeds.sciencedaily.com/~r/sciencedaily/~3/heRKlEXwQtw/090306103647.htm
More than 58 rapid sea level rises in the last five million years could account for an apparently abrupt switch in the kinds in of mammals found along the Malay Peninsula in southeast Asia -- from mainland species to island species -- in the absence of any geographical barrier, ecologists say.
Mon, 9 Mar 09
Using Hair To Manage HIV/AIDS And Predict Treatment Success
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XJ6VoVGPPL0/090303194002.htm
High levels of antiretrovirals in hair correlated with success in HIV viral suppression in treatment and did so better than any of the other variables usually considered to predict response.
Mon, 9 Mar 09
NASA's Mars Rover Spirit Faces Circuitous Route
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7QfTtO251lk/090308113308.htm
Loose soil piled against the northern edge of a low plateau called "Home Plate" has blocked NASA's Mars Exploration Rover Spirit from taking the shortest route toward its southward destinations for the upcoming Martian summer and following winter.
Mon, 9 Mar 09
'Pre-diabetics' Face Heightened Risk Of Heart Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y8hrhJwoEtg/090303171453.htm
Older adults who have impaired glucose tolerance but who are not considered diabetic are at elevated risk for heart disease and may benefit from preventive therapies, according to a new study.
Mon, 9 Mar 09
Wheat Gene With Resistance To Stripe Rust Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1csVOTR9yiY/090220183417.htm
Experts on wheat biotechnology have discovered a gene that will make bread wheat capable of resisting stripe rust, a fungus that causes crop losses in many states.
Mon, 9 Mar 09
How Multiple Childhood Maltreatments Lead To Greater Adolescent Binge Drinking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Anqcy2OQLkY/090303161315.htm
Researchers examined the relationship of binge drinking with the co-occurence of such specific childhood maltreatments as neglect, physical abuse and sexual abuse in combination and separately on adolescents. The effects of these adverse maltreatments increase an individual's risk for alcohol problems in adolescence.
Mon, 9 Mar 09
Amazon Rainforest Carbon Sink Threatened By Drought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/idmCRgfDKzE/090305141625.htm
The Amazon is surprisingly sensitive to drought, according to new research conducted throughout the world's largest tropical forest. The 30-year study provides the first solid evidence that drought causes massive carbon loss in tropical forests, mainly through killing trees.
Mon, 9 Mar 09
TB Breakthrough Could Lead To Stronger Vaccine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UmhGNxh9ZTA/090303123808.htm
A breakthrough strategy to improve the effectiveness of the only tuberculosis vaccine approved for humans provided superior protection against the deadly disease in a pre-clinical test.
Mon, 9 Mar 09
Scientists Reconstruct An Ancient Greek Musical Instrument, The Epigonion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6EHZskRKMnA/090305080734.htm
The ASTRA project, standing for Ancient instruments Sound/Timbre Reconstruction Application, has revived an instrument that hasn't been played or heard in centuries. Using the Enabling Grids for E-sciencE infrastructure for computing power, scientists have reconstructed the "epigonion," a harp-like, stringed instrument used in ancient Greece.
Mon, 9 Mar 09
Patients With Severe Asthma Benefit From Antibody Injection, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/981hQUWhCos/090304182107.htm
Mepolizumab works by blocking the production of eosinophils. By preventing their production, researchers were able to improve asthma, reduce the need for prednisone and really show that eosinophils are important in causing asthma symptoms in these patients.
Mon, 9 Mar 09
Promising Biofuel Made From Commercial Yeasts Upgraded With A New Enzyme
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t84rQcOiUWo/090224230751.htm
Scientist have discovered a new enzyme which teaches yeast cells to ferment xylose into ethanol. Xylose is an unused waste sugar in the cellulosic ethanol production process.
Mon, 9 Mar 09
TV Ratings For Kids' Shows Don't Reflect Aggressive Content, Psychologists' Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HbexVPyAWiY/090303194004.htm
A new study by psychologists has found that TV ratings don't accurately reflect the aggressive content found in shows popular among children -- even cartoons.
Mon, 9 Mar 09
Humans Can Sense 'Smell Of Fear' In Sweat, Psychologist Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_HpNdlNI3UQ/090306142536.htm
When threatened, many animals release chemicals as a warning signal to members of their own species, who in turn react to the signals and take action. New research suggests a similar phenomenon occurs in humans.
Mon, 9 Mar 09
Big Waist Size Linked To Decreased Lung Function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nnP84yiJ70I/090306084400.htm
A new study has found that a high waist circumference is strongly associated with decreased lung function -- independent of smoking history, sex, body mass index and other complicating factors.
Mon, 9 Mar 09
Unusual Reproductive Life Of The Naked Mole-Rat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vIUjzwD6fWg/090224133328.htm
Naked mole-rats are very ugly, but also very interesting mammals. Now scientists want to find out whether the males influence the distribution of male and female progeny.
Mon, 9 Mar 09
Younger Breast Cancer Patients Have Greater Chance Of Recurrence, Especially After Certain Treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CUi4LVw3XSk/090304144302.htm
Breast cancer patients 35 years old and younger have higher rates of their cancer returning after treatment than older women patients with the same stage of cancer, and their risk of recurrence is greatly impacted by the type of treatment they received, according to a new study.
Mon, 9 Mar 09
New Models Question Old Assumptions About How Many Molecules It Takes To Control Cell Division
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CJTBCSi8l1U/090224154904.htm
A single cell is exquisitely sensitive to its surroundings. It receives input signals, processes the information, makes decisions, and issues commands for making the proper response. As with any control system, noise -- errors, slip-ups, misreads -- can get in the way of correct decision making. Biologists and engineers have created a mathematical model to explore the roles of noise in controlling the basic events of the cell cycle.
Mon, 9 Mar 09
Flexible Approach To Acute Conflict Results In More Frustration and Anger, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qtezLirZI1A/090305080147.htm
Researchers show that having a more flexible approach to resolving an acute conflict interaction results in more frustration and anger. Researchers observed a sample of 65 undergraduate students role-playing a stressful task with a "neighbor" who was portrayed by a research assistant.
Mon, 9 Mar 09
Evolution, Ecosystems May Buffer Some Species Against Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jZSDA7UQCQE/090305141620.htm
Although ecologists expect many species will be harmed by climate change, some species could be buffered by their potential to evolve or by changes in their surrounding ecosystems.
Mon, 9 Mar 09
Turmeric Ingredient Makes Membranes Behave For Better Health
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SIwBMqgDp4Y/090306172615.htm
Revered in India as "holy powder," the marigold-colored spice known as turmeric has been used for centuries to treat wounds, infections and other health problems. In recent years, research into the healing powers of turmeric's main ingredient, curcumin, has burgeoned, as its astonishing array of antioxidant, anti-cancer, antibiotic, antiviral and other properties has been revealed.
Mon, 9 Mar 09
NASA's Kepler Mission Rockets To Space In Search Of Other Earths
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W87sYVxSN3A/090308113204.htm
NASA's Kepler mission successfully launched into space from Cape Canaveral Air Force Station, Fla., aboard a United Launch Alliance Delta II on Friday, March 6. Kepler is designed to find the first Earth-size planets orbiting stars at distances where water could pool on the planet's surface. Liquid water is believed to be essential for the formation of life.
Mon, 9 Mar 09
Grape Extracts May Be Effective Against Harmful Gut Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6SnhDaD9MA4/090304132621.htm
Various grape extracts and their compounds were found to be effective at inhibiting Helicobacter pylori, one of the leading causes of gastritis in humans.
Mon, 9 Mar 09
Cross-dressing Rubidium May Reveal Clues For Exotic Computing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lTAJ-8WeBGM/090225151341.htm
Researchers have learned how to "dress up" neutral atoms with laser light to make them act in ways similar to a charged particle like an electron. The costume scheme could be a way for physicists to study the role of fractionally charged particles in an exotic form of quantum computing.
Mon, 9 Mar 09
Danger of Cell Phone Use: While Walking Or Driving, Cell Phones Increase Traffic, Pedestrian Fatalities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cy8WlvCFI6U/090304160404.htm
Cell phones are a danger on the road in more ways than one. Two new studies show that talking on the phone while traveling, whether you're driving or on foot, is increasing both pedestrian deaths and those of drivers and passengers, and recommend crackdowns on cell use by both pedestrians and drivers.
Sun, 8 Mar 09
Archaeologists Find Earliest Known Domestic Horses: Harnessed and Milked
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aTZcxtjdN3M/090305141627.htm
Archaeologists have uncovered the earliest known evidence of horses being domesticated by humans. The discovery suggests that horses were both ridden and milked. The findings could point to the very beginnings of horse domestication and the origins of the horse breeds we know today.
Sun, 8 Mar 09
Drug Blocks Two Of World's Deadliest Emerging Viruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o1iBL2dlk8E/090305121731.htm
Two highly lethal viruses that have emerged in recent outbreaks are susceptible to chloroquine, an established drug used to prevent and treat malaria, according to a new basic science study in the Journal of Virology.
Sun, 8 Mar 09
Geeks May Be Chic, But Negative Nerd Stereotype Still Exists, Professor Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/52NeTHia9wU/090303123810.htm
Despite the increased popularity of geek culture and the ubiquity of computers, the geek's close cousin, the nerd, still suffers from a negative stereotype in popular culture, according to new research.
Sun, 8 Mar 09
Worm-and-mouse Tale: B Cells Deserve More Respect
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_JXfWCgrM9Q/090226141144.htm
By studying how mice fight off infection by intestinal worms -- a condition that affects more than 1 billion people worldwide -- scientists have discovered that the immune system is more versatile than has long been thought. The work with worms is opening a new avenue of exploration in the search for treatments against autoimmune diseases like diabetes and asthma, where the body mistakenly attacks its own tissues.
Sun, 8 Mar 09
Environmentally-friendly Energy: Sunlight Turns Carbon Dioxide To Methane
http://feeds.sciencedaily.com/~r/sciencedaily/~3/trbjSRXjELY/090305102719.htm
Dual catalysts may be the key to efficiently turning carbon dioxide and water vapor into methane and other hydrocarbons using titania nanotubes and solar power, according to researchers. Burning fossil fuels like oil, gas and coal release large amounts of carbon dioxide, a greenhouse gas, into the atmosphere. Rather than contribute to global climate change, producers could convert carbon dioxide to a wide variety of hydrocarbons, but this makes sense to do only when using solar energy.
Sun, 8 Mar 09
Safer Methadone Use For Treatment Of Pain And Addiction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/93V8CvU25OU/090303102736.htm
New findings may significantly improve the safety of methadone, a drug widely used to treat cancer pain and addiction to heroin and other opioid drugs.
Sun, 8 Mar 09
Virus-free Embryonic-like Stem Cells Made From Skin Of Parkinson's Disease Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lhd_o3gX0e4/090305121649.htm
Deploying a method that removes potentially cancer-causing genes, researchers have "reprogrammed" human skin cells from Parkinson's disease patients into an embryonic-stem-cell-like state. Scientists then used these so-called induced pluripotent stem (iPS) cells to create dopamine-producing neurons, the cell type that degenerates in Parkinson's disease patients. This marks first time researchers have generated human iPS cells, successfully removed the potentially problematic reprogramming genes, and seen the cells maintain their embryonic stem-cell-like state.
Sun, 8 Mar 09
Sudden Collapse Of Healthy Athletes May Be Due To Hereditary Cardiac Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qknTY3PU8EM/090305102717.htm
When young, apparently healthy athletes suddenly collapse, it can be due to hereditary cardiac disease. Researchers have now discovered a genetic modification that leads to cardiac weakness in an animal model. Just one "false" amino acid can give zebrafish a heart condition. Since the fish have a genetic makeup similar to that of humans, these defects could be critical for humans as well.
Sun, 8 Mar 09
What Determines The Size Of Giant Dunes?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6pp982yDiM0/090304133400.htm
Physicists have shown that the size of giant dunes is controlled by the depth of the atmospheric convective boundary layer. More specifically, the physicists have shown that such dunes grow through the accumulation of small superimposed dunes, and that their growth is limited by interaction with a part of the atmosphere called the inversion layer, which confines wind flow around the dunes.
Sun, 8 Mar 09
Muscling In On Type 2 Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_B8NcRLsf54/090226110703.htm
Research by kinesiology investigators has shown that muscle in extremely obese individuals produces large amounts of a protein called myostatin, which normally inhibits muscle growth -- suggesting that for Type 2 diabetics, and the very obese, the task of getting healthy may be more difficult than initially thought.
Sun, 8 Mar 09
New Zealand And New Caledonia Geographically Connected: Ocean's Journey Towards The Center Of The Earth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zNxocOG4uSc/090305091042.htm
Geoscientists have discovered the existence of an ocean floor was destroyed 50 to 20 million years ago, proving that New Caledonia and New Zealand are geographically connected.
Sun, 8 Mar 09
Daytime Sleepiness Provides Red Flag For Cardiovascular Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WrsMdAbY2Bo/090226160743.htm
Clinicians should be alert to patients reporting "excessive" day time sleepiness, says the European Society of Cardiology, after a French study found healthy elderly people who regularly report feeling sleepy during the day have a significantly higher risk of dying from cardiovascular disease.
Sat, 7 Mar 09
How Hyenas 'Inherit' Their Social Status
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xCXXlBjn-lU/090225073209.htm
Scientists have now answered the question how social status is inherited in one of the most social of all mammals, the spotted hyena. The scientists used observations during the last 20 years of rare cases of adoption among hyenas in the Serengeti and Ngorongoro Crater in Tanzania in combination with the latest molecular techniques to identify genetic mothers to demonstrate that hyena mothers pass on their social status by supporting their young during social interactions with other group members.
Sat, 7 Mar 09
Promising Target To Treat Chronic Abdominal Pain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2aCc-nZSKOg/090302133214.htm
High levels of a protein linked to the way pain signals are sent to the brain led to a decrease in abdominal pain in a recent study in mice. Researchers say the finding suggests the protein might someday serve as the basis of new treatments for chronic pain associated with a number of bowel disorders.
Sat, 7 Mar 09
Origins Of Pompeii-style Artifacts Examined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wwX2CbJqjk4/090224133206.htm
Roman artifacts which are nearly two thousand years old with similarities to ancient remains found at Pompeii in Italy have been examined at the Science and Technology Facilities Council's ISIS neutron source.
Sat, 7 Mar 09
Arthritis Hinders Physical Activity For Adults With Heart Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_PpR0ie8hvg/090226122737.htm
Arthritis affects more than half of adults with heart disease and appears to be a substantial barrier to utilizing physical activity to help manage their condition, according to a new study. According to the Arthritis Foundation, the study underscores the importance of physical activity in effective management for adults with both arthritis and heart disease.
Sat, 7 Mar 09
Less Nitrogen Could Increase Profit, Sustainability
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ld1pdUyCxSg/090220183111.htm
More fertilizer doesn't always mean more profit. Research results suggest that when managing fields with relatively high nitrogen levels, farmers could benefit economically from reduced nitrogen fertilization rates.
Sat, 7 Mar 09
Alcohol Abuse May Lead To Depression Risk, Rather Than Vice Versa
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NBcZ8X92fCQ/090302183002.htm
A statistical modeling study suggests that problems with alcohol abuse may lead to an increased risk of depression, as opposed to the reverse model in which individuals with depression self-medicate with alcohol, according to a new report.
Sat, 7 Mar 09
Bizarre Bird Behavior Predicted By Game Theory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q9D7n-gEQcU/090224230705.htm
A team of scientists has used game theory to explain the bizarre behavior of a group of ravens. Juvenile birds from a roost in North Wales have been observed adopting the unusual strategy of foraging for food in 'gangs'. New research explains how this curious behavior can be predicted by adapting models more commonly used by economists to analyze financial trends. This is the first time game theory has been used to successfully predict novel animal behavior in the real world.
Sat, 7 Mar 09
'Silver Nanoparticle' Microscope May Shed New Light On Cancer, Bone Diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uIbwDO9k4qs/090302090138.htm
In a finding that could help speed the understanding of diseases ranging from cancer to osteoporosis, researchers are reporting development of a new microscope technique that uses "silver nanoparticle" mirrors to reveal hidden details inside bones, cancer cells, and other biological structures. The method also can help identify structural damage in a wide variety of materials, including carbon-fiber plastics used in airplanes, the researchers say.
Sat, 7 Mar 09
Health Is Going High Tech WIth Camera Pills, Health Sensors And Ultrasound Maps For Surgeons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PAcey-GHT_8/090223115327.htm
Camera pills and ultrasound creating maps of the body: health has become high technology. Scientists have created a new IT-base window on the inside of the body, a window that makes a patient transparent on a screen when a surgeon inserts operating instruments through small openings in the abdominal wall.
Sat, 7 Mar 09
New Tool Guides Doctors To Save Cancer Patients' Fertility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s49BrkYnwEA/090226122728.htm
The powerful chemotherapy and radiation used to save cancer patients' lives can also destroy their fertility. Research in a new field called oncofertility has advanced the ability of doctors to preserve the reproductive health of cancer patients. Yet, many oncologists aren't familiar with these new strategies. Oncofertility scientists have written a guide to help doctors navigate their patients through the new technologies to preserve their fertility and understand the fertility threats posed by cancer treatments.
Sat, 7 Mar 09
Desert Shrub, Guayule, May Be Fuel Of The Future
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cKyNdnn_8y4/090220183706.htm
Superb natural latex from a desert shrub called guayule (why-YOU-lee) makes high-quality gloves, medical devices, and other in-demand natural rubber products. But guayule may also prove to be an economical, environmentally friendly source of another valuable resource--energy.
Sat, 7 Mar 09
Swimming Lessons Do Not Increase Drowning Risk In Young Children, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/meNFnuhLisQ/090302182950.htm
Providing very young children with swimming lessons appears to have a protective effect against drowning and does not increase children's risk of drowning, researchers report.
Sat, 7 Mar 09
Peptides-on-demand: Radical New Green Chemistry Makes The Impossible Possible
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dtUrOqBzz6g/090224154906.htm
Chemists have discovered an entirely new way of synthesizing peptides using simple reagents, a process that would be impossible in classical chemistry.
Sat, 7 Mar 09
Drinking Wine Lowers Risk Of Barrett's Esophagus, Precursor To Nation's Fastest Growing Cancer, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DxXHrn2l5Oo/090302090133.htm
A new study found drinking one glass of wine a day may lower the risk of Barrett's Esophagus by 56 percent. There was no reduction of Barrett's Esophagus risk among people who drank beer or liquor.
Sat, 7 Mar 09
Students Designing Cockpit For World's Fastest Car: 1,000 Mph Record Attempt Planned
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3VN9O8nzY8Y/090223115324.htm
World land speed challenger Andy Green OBE visited the University of the West of England recently to try out for the first time a mock-up of the cockpit he will use in his 1000 mph record attempt. The cockpit test rig, designed and built by second-year product design students, will ensure that cockpit components such as chair and controls are in the optimum ergonomic position for the challenge.
Sat, 7 Mar 09
Liver Tumors Associated With Metabolic Syndrome Differ From Other Tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UIBR9X8qAyM/090225132553.htm
A new study suggests that the metabolic response to obesity and insulin resistance, particularly as it pertains to the liver, differs among ethnic groups in the US African-Americans are more resistant to the buildup of fat in the abdominal adipose tissue and liver, and to high triglyceride levels associated with insulin resistance.
Sat, 7 Mar 09
Olive Groves May Be Rescued By Helpful Wasp
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d9tz-TIQqMA/090220182740.htm
Olives basking in sunny California groves might find that their new best friend is a small brown wasp. Known to scientists as Psyttalia cf. concolor, the little wasp can help foil the olive fruit fly, a powerful natural enemy of olives.
Sat, 7 Mar 09
Virtual And Real Worlds: Two Worlds Of Kids' Morals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ok66z1BFQfs/090302120102.htm
Children's moral behavior and attitudes in the real world largely carry over to the virtual world of computers, the Internet, video games and cell phones. Interestingly, there are marked gender and race differences in the way children rate morally questionable virtual behaviors, according to new research.
Sat, 7 Mar 09
New Light Shed On Marine Luminescence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qm3EOzm9j9w/090223121359.htm
The mystery of how some marine animals produce light has come one step closer to being solved. Researchers have discovered that krill, the luminous crustacean, can use special and previously unknown muscles to regulate light intensity.
Sat, 7 Mar 09
New Origin Found For Critical Immune Response
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nkrCWuRRugM/090301181419.htm
An immune system response that is critical to the first stages of fighting off viruses and harmful bacteria comes from an entirely different direction than most scientists had thought, according to a new study. This finding will have important implications in vaccine science and autoimmune disease therapy development.
Sat, 7 Mar 09
Collared Coyote Leaves Record Of 150-Mile Trek
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZedC5MbFRc8/090220171507.htm
A coyote collared with a global positioning system tracking device in upstate New York last spring was trapped this winter 150 miles away in eastern Pennsylvania, giving researchers a record -- in unprecedented detail -- of its movements over an eight-month period.
Sat, 7 Mar 09
Better Sequence Searches Of Genes And Proteins Devised
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CvP20xqK12M/090223131125.htm
Often, the sequences of genes and proteins can suggest to us what their function is -- especially if we compare them with known sequences. Researchers have now developed a method that makes such analyses significantly more sensitive.
Sat, 7 Mar 09
Citrus Disease Bacterium Sequenced
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kF329at1nFA/090220182438.htm
Researchers have a new tool to combat citrus Huanglongbing (HLB), a disease threatening the nation's $2.2 billion citrus industry.
Sat, 7 Mar 09
Many Middle-aged And Older Americans Not Getting Adequate Nutrition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Hcufaw9DYBw/090301094252.htm
As older adults tend to reduce their food intake as they age, there is concern that deficits in micronutrients lead to medical problems. Researchers examined how well different ethnic groups met the recommended daily allowances through food intake and supplement consumption. The study determined that many middle-aged and older Americans are not getting adequate nutrition.
Sat, 7 Mar 09
How Moths Key Into Scent Of A Flower
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9AvQUbcgMF4/090305091044.htm
Although a flower's bouquet can be composed of hundreds of chemicals, the tobacco hornworm moth needs to smell just a handful to identify its favorite source of nectar, the sacred datura flower. It is the first time researchers have recorded an insect's brain activity as the animal smelled all the individual chemicals captured from a real flower. Previous research used only synthetic odors.
Sat, 7 Mar 09
Study Of Human Pancreases Links Virus To Cause Of Type 1 Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Gb_u3qDJchA/090305141639.htm
Scientist have found that a common family of viruses (enteroviruses) may play an important role in triggering the development of diabetes.
Sat, 7 Mar 09
Climate Change Hurting Hares: White Snowshoe Hares Can't Hide On Brown Earth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oKGT1Jzvcro/090224220347.htm
Researchers have noticed an exceptional number of white snowshoe hares on brown earth. They contend that climate change and the color mismatch are causing much more hare mortality.
Sat, 7 Mar 09
Protein Encourages Cell Growth And Migration In Prostate Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CNiZwuOm5Ns/090226110659.htm
Researchers have identified a protein, proepithelin, that appears to play a significant role in the growth and migration of prostate cancer cells, especially androgen-independent prostate cancer cells.
Sat, 7 Mar 09
Converting Solar Light To Electricity: Silicon-free Photoelectric Module Integrates Easily
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CdBJO01W5y4/090223083354.htm
European researchers have made a laboratory-scale photoelectric panel which, apart from fulfilling the function of converting solar light into electricity, solves the problems of integratability and availability that current technology presents.
Sat, 7 Mar 09
Inadequate Fruit And Vegetable Consumption Found Among U.S. Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sxDS8GqCRJo/090302183254.htm
Children and adolescents aren't meeting guidelines for fruit and vegetable consumption, according to researcher.
Sat, 7 Mar 09
Unexpected Source Of Gamma Rays Discovered In Space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ymGbeZFxlWg/090305150921.htm
Astrophysicists have discovered a source of very high energy gamma rays in the region of the distant galaxies 3C 66A and 3C 66B. This new gamma emission, observed from the MAGIC telescope in La Palma (Canary Islands) is not consistent with what scientists expected to find, and has resulted in them suggesting three hypotheses to explain their origin.
Sat, 7 Mar 09
Cats' Eye Diseases Genetically Linked To Diseases In Humans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a9cso1F0WkQ/090304114254.htm
About one in 3,500 people are affected with retinitis pigmentosa (RP), a disease of the retina's visual cells that eventually leads to blindness. Now researchers have identified a genetic link between cats and humans for two different forms of RP. This discovery will help scientists develop gene-based therapies that will benefit both cats and humans.
Sat, 7 Mar 09
Crab Claws Pack Strengthening Bromide-rich Biomaterial
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9Al_A7zyo58/090225132532.htm
Next time you have an unlucky encounter with a crab's pincers, consider that the claw tips may be reinforced with bromine-rich biomaterial 1.5 times harder than acrylic glass and extremely fracture resistant.
Sat, 7 Mar 09
Study Shows Benefits Of Hormone Found In Fat Tissue
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k00tRzyJyQ8/090226153114.htm
It's called the obesity paradox. Although obese people are more apt to suffer from inflammatory diseases, such as diabetes, heart disease, and stroke, they are also more likely to survive a major attack caused by one of those conditions. Scientists shed light on the reasons for this phenomenon in a study in Endocrinology.
Sat, 7 Mar 09
Jordan's Fossil Water Source Has High Radiation Levels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/M1G0i2eE9Yw/090224163647.htm
Ancient groundwater being tapped by Jordan, one of the 10 most water-deprived nations in the world, has been found to contain 20 times the radiation considered safe for drinking water.
Sat, 7 Mar 09
Gestures Lend A Hand In Learning Mathematics; Hand Movements Help Create New Ideas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eSqozi7Rd18/090224133204.htm
Gesturing helps students develop new ways of understanding mathematics. Scholars have known for a long time that movements help retrieve information about an event or physical activity associated with action. A new report, however, is the first to show that gestures not only help recover old ideas, they also help create new ones. The information could be helpful to teachers.
Sat, 7 Mar 09
Naked Mole Rats May Hold Clues To Successful Aging
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dMDIdswy1sc/090305171903.htm
Naked mole rats resemble pink, wrinkly, saber-toothed sausages and would never win a beauty contest, even among other rodents. But these natives of East Africa are the champs for longevity among rodents, living nine times longer than similar-sized mice. Not only do they have an extraordinarily long lifespan, but they maintain good health for most of it and show remarkable resistance to cancer.
Sat, 7 Mar 09
Link Between Type 1 Diabetes And Common Viral Infection Suggested By Genetic Mutations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rExVegFaj4c/090305141635.htm
Scientists have discovered four rare mutations of a gene associated with type 1 diabetes (T1D) that reduce the risk of developing the disease. Their findings, published in the journal Science, suggest a link between T1D and the enterovirus (a common virus that enters via the gastrointestinal tract but is often non-symptomatic).
Sat, 7 Mar 09
Predicting Risk Of Stroke From One's Genetic Blueprint
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PCBBPO3H2bQ/090225132522.htm
The ability to predict a person's lifelong risk of stroke would allow clinicians to advise individuals at high risk. Researchers report on such a statistical model, which draws on 1,313 known genetic predictors. Used in 569 patients presenting with possible stroke, the model, known as a Bayesian network, was able to predict the true occurrence of stroke with 86 percent accuracy.
Sat, 7 Mar 09
New Gene-searching Method Uncovers Possible New Targets For Crohn's Disease Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KXBP1czmeqg/090226122726.htm
Discovering the different genes that contribute to a complex disease is like searching in the proverbial haystack for an unknown number of needles. But if some needles are linked to each other by fine threads, you might pull out clumps of them together. A novel approach that combines identifying genes on crucial biological pathways with genome-wide association studies has discovered new genes involved in Crohn's disease, a chronic inflammation of the GI tract.
Sat, 7 Mar 09
Human Role In Indonesian Forest Fires Traced
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p9jqE1lijoI/090222142152.htm
Severe fires in Indonesia -- responsible for some of the worst air quality conditions worldwide -- are linked not only to drought, but also to changes in land use and population density, according to a new study.
Sat, 7 Mar 09
Inappropriate Drug Prescriptions Wasting Millions, Raising Health Risks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QVh05sENcnQ/090304124354.htm
A recent study in Oregon suggests that drugs designed for treating the most severe mental illnesses are often prescribed at inappropriately low doses and at considerable expense, for use in conditions where their benefit has not been established.
Fri, 6 Mar 09
Geologists Map Rocks To Soak Carbon Dioxide From Air
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y7AZET5Q_nY/090305131812.htm
A new report points to an abundant supply of carbon-trapping rock in the US that could be used to help stabilize global warming.
Fri, 6 Mar 09
Muscular Dystrophy: Stem Cell Breakthrough Gives New Hope To Sufferers Of Muscle-wasting Diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Be0ailkghDU/090305102711.htm
An experimental procedure that dramatically strengthens stem cells' ability to regenerate damaged tissue could offer new hope to sufferers of muscle-wasting diseases such as myopathy and muscular dystrophy, according to researchers. The world-first procedure has been successfully used to regrow muscles in a mouse model, but it could be applied to all tissue-based illnesses in humans such as in the liver, pancreas or brain.
Fri, 6 Mar 09
Stem-cell Genes That Help Form Plant Organs Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oqJBq9KJfXo/090224154910.htm
Biologists have identified all the genes expressed in the stem cells of Arabidopsis, a mustard-like plant that is a model for studying plant biology. The achievement paves the way to developing better varieties of crops and plants. Besides revealing the molecular pathways that stem cells employ, the discovery also can help scientists better understand why stem cells -- in both plants and animals -- give rise to specialized cells at all.
Fri, 6 Mar 09
Influence Of 'Obesity Gene' Can Be Offset By Healthy Diet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uVum0BAKKWY/090304091329.htm
Children who carry a gene strongly associated with obesity could offset its effect by eating a low energy density diet, according to new research.
Fri, 6 Mar 09
Climate Change Affecting Europe's Birds Now, Say Researchers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L82jdY9H5Nk/090304091331.htm
Climate change is already having a detectable impact on birds across Europe, according to new research. They have shown a strong link between recent population changes of individual species and their projected future range changes, associated with climate change, among a number of widespread and common European birds, including the goldfinch and the lesser spotted woodpecker.
Fri, 6 Mar 09
Visual Cues Help People Understand Spoken Words
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5fsHlkgrzN0/090304091326.htm
Seeing the lip and face movements as a person speaks can improve your understanding of spoken words by as much as sixfold, according to researchers.
Fri, 6 Mar 09
Assembling Cells Into Artificial 3-D Microtissues, Including A Tiny Gland
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PtT4gn4XwN8/090305091046.htm
Chemists have developed a way to assemble cells into 3-D microtissues and even tiny glands, much like snapping together toy building blocks to make a simple machine. Such microtissues could serve as niches for studying how cells, such as stem cells, work together. Or they could be assembled into larger structures as artificial, implantable organs.
Fri, 6 Mar 09
Novel Pandemic Flu Vaccine Effective Against H5N1 In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wntMmFVeblE/090228075736.htm
Virus-like particles offer a chicken egg-free method of producing influenza vaccines. Immunization with virus-like particles effectively protects mice from H5N1 influenza and could be an attractive mode of vaccination in humans.
Fri, 6 Mar 09
Diversity Of Birds Buffer Against West Nile Virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3sqbhQZq56A/090220191318.htm
Scientists studying West Nile virus have shown that more diverse bird populations can help to buffer people against infection. Since the virus first spread to North America it has reached epidemic proportions and claimed over 1,100 human lives.
Fri, 6 Mar 09
Children With Hypertension Have Trouble With Thinking, Memory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SZl2nkWVjaM/090224133028.htm
Children with high blood pressure are not as good at complicated, goal-directed tasks, have more working memory problems and are not as adept at planning as their peers without hypertension, according to recent research. If they are both hypertensive and obese, they are also more likely to have anxiety and depression.
Fri, 6 Mar 09
Chemists Create Two-armed Nanorobotic Device To Maneuver World's Tiniest Particles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/191LiBzLU7w/090215151807.htm
Chemists have developed a two-armed nanorobotic device that can manipulate molecules within a device built from DNA.
Fri, 6 Mar 09
Autonomous Robot Dancer Identifies Dance And Music In Intelligent Manner
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2f-QmoOhCEU/090225073357.htm
Built from a simple Lego NXT kit, a new student-built robotic system can identify different types of dance and music in an intelligent independent manner. The next step is to create and manage choreography between humanoid robots.
Fri, 6 Mar 09
Glow, Little E. Coli: Making Luminous Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/555SoR1csiU/090305170601.htm
Researchers have discovered how to make a strain of E. coli glow under fluorescent light. The technique could eventually be used to track down all sorts of pathogens and even help in the fight against breast cancer.
Fri, 6 Mar 09
Brain Protein May Be Target For Fast-acting Antidepressants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y10EAAkz6ZE/090225175531.htm
It takes weeks or months for the effect of most antidepressants to kick in, time that can feel like an eternity to those who need the drugs the most. But new research suggests that a protein called p11, previously shown to play a role in a person’s susceptibility to depression, activates a serotonin receptor in the brain known for producing a rapid antidepressant response. If scientists could develop drugs to target this receptor, they might produce an effect in as little as two days.
Fri, 6 Mar 09
Milkweed Oil Tapped For Sunscreen And Other Products
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SypiCmy5Qhs/090220181749.htm
Common milkweed is the only food source of monarch butterfly caterpillars. But for some farmers, the plant is also a valuable source of floss that can be harvested for use as a hypoallergenic filler for high-end pillows, comforters and jacket linings.
Fri, 6 Mar 09
New Formula Could Set Universal Standard For Monitoring Chronic Kidney Disease In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9rGnuum_gAc/090224133013.htm
Children with chronic kidney disorder are often subjected to radioactivity and a large number of blood draws when clinicians measure how well their kidneys are functioning. This process is also time-consuming and costly. A new formula has been developed that accurately estimates the level at which children's kidneys are working using height, gender and measuing variables from just a small sample of blood.
Fri, 6 Mar 09
Ultracold Gas Mimics Ultrahot Plasma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9Z_Z6Yu3dFo/090215151457.htm
A low density, ultra-cold gas cloud behaves strikingly similar to a dense, very hot plasma. Both are near perfect fluids.
Fri, 6 Mar 09
Diagnosis Of 'War-zone Disorder' To Help Stroke Victims
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WHLBc4xk7Fc/090224230703.htm
The recovery of some stroke victims, those who suffer brain hemorrhage, could be vastly improved if they were tested and treated for post-traumatic stress disorder, a distressing psychological condition more commonly known to affect soldiers who have fought in war zones.
Fri, 6 Mar 09
Seven New Species Of Deep-sea Coral Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mf2hTKobj04/090305121657.htm
Scientists identified seven new species of bamboo coral in the deep waters of the Papahanaumokuakea Marine National Monument. Six of these species may represent entirely new genera, a remarkable feat given the broad classification a genus represents. Scientists expect to identify more new species as analysis of samples continues.
Fri, 6 Mar 09
Newly Discovered Gene Plays Vital Role In Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j5xZkTrxkGo/090227072646.htm
Gene p53 protects against cancer and is usually described as the most important gene in cancer research. However, scientists have now shown that a previously unknown gene, Wrap53, controls the activity of p53. As the regulation mechanism is relatively unexplored, the study opens up new routes to solving the mystery of cancer.
Fri, 6 Mar 09
Algal Toxin From Mussels Synthesized
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FsMZykA5SAY/090220124910.htm
Chemists have synthesized an algal toxin that accumulates in mussels. This may help develop a method to detect the toxin in these molluscs before they are served up for human consumption.
Fri, 6 Mar 09
Aneurysms Don't Occur Earlier In Second Generation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T0v0X5HYgQ0/090223221227.htm
People whose parents or aunts and uncles have had a brain aneurysm are more likely to have one themselves, indicating that genetic risk factors passed down by generation are responsible. Prior studies had suggested that aneurysm ruptures affect the offspring or second generation as much as 20 years younger than older generations. A new study shows that may not be the case.
Fri, 6 Mar 09
Forget The Freezer: Novel Way To Control Water Behavior Using Nanometer-sized Spaces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CbxnFRa9y2I/090220102259.htm
Researchers may be able to "freeze" water into a solid, not by cooling but by confining it to narrow spaces less than one-millionth of a millimeter wide. It's more than a neat trick -- a deeper understanding of how thin films of water behave in nanometer-sized spaces may help advance numerous scientific endeavors, including the development of new energy sources, pharmaceuticals and self-cleaning surfaces.
Fri, 6 Mar 09
Young British Armed Forces Ex-servicemen At Increased Risk Of Suicide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-8ZT9sBA4M0/090302091301.htm
Young men who have served in the British Armed Forces are up to three times more likely to take their own lives than their civilian counterparts.
Fri, 6 Mar 09
Seeking Earth-like Planets: NASA's Kepler Mission Set For Launch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YLc75nZi6fs/090305143932.htm
NASA's Kepler mission to seek other Earth-like planets is undergoing final preparations for liftoff Friday, March 6, at Cape Canaveral Air Force Station in Florida. Kepler is designed to find the first Earth-size planets orbiting stars in habitable zones -- regions where water could pool on the surface of the planets. Liquid water is believed to be essential for the formation of life.
Fri, 6 Mar 09
Scientists Block Immune Cell Rush Behind Deadly Sepsis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eXwmMAMfpP4/090224154902.htm
Researchers have found a way to block the ability of white blood cells to sprint toward the sites of infection when such speed worsens the damage done by sepsis, the often fatal, whole-body bacterial infection, according to a new study. The results recommend existing drugs as potential new treatments against sepsis, and suggest improvements in the current treatment that would increase its effect while eliminating a treatment-related risk for internal bleeding.
Fri, 6 Mar 09
Paradigm Shift In MRI Detection Results In Broad Images, Crystal Clear
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_j2g4bPT98g/090220122723.htm
Unconventional thinking led a PhD student to make a discovery that could revolutionize MRI. He succeeded in exciting and imaging nuclear magnetic resonance in the human body by propagating electromagnetic waves.
Fri, 6 Mar 09
Take 2: What Protein And Where It Is Located Are Important For Drug Design
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pJP85oI3pFU/090223221237.htm
Drugs that target a single signaling pathway that drives tumor development and/or progression have been developed successfully to treat a few forms of cancer.
Fri, 6 Mar 09
Lake Michigan Fish Populations Threatened By Decline Of Tiny Creature
http://feeds.sciencedaily.com/~r/sciencedaily/~3/C3E5JXY2nUM/090219081038.htm
The quick decline of a tiny shrimp-like species, known scientifically as Diporeia, is related to the aggressive population growth of non-native quagga mussels in the Great Lakes, say scientists. As invasive mussel numbers increase, food sources for Diporeia and many aquatic species have steadily and unilaterally declined.
Fri, 6 Mar 09
Women With Diabetes Before Or During Pregnancy At Significantly Increased Risk Of Postpartum Depression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cfWMgNMBfXs/090224163615.htm
Pregnant women and new mothers who have diabetes have nearly double the chances of experiencing postpartum depression compared to those without diabetes. Researchers analyzed data from over 11,000 low income mothers in New Jersey. Approximately 1 in 10 of these women who had diabetes developed depression in the year following delivery.
Fri, 6 Mar 09
Scientists Expose 'Buried' Fault That Caused Deadly 2003 Quake In Bam, Iran
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W7ajKsmdtv8/090305085754.htm
Using satellite radar data, NASA-funded scientists have observed, for the first time, the healing of subtle, natural surface scars from an earthquake that occurred on a "buried" fault several miles below the surface-a fault whose fractures are not easily observed at Earth's surface.
Fri, 6 Mar 09
Experimental Vaccine Protects Animals From Deadly Ebola Virus; May Prove Effective In Developing The First Human Vaccine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lP1TNjXDMVA/090227081134.htm
Protection against Ebola, one of the world's deadliest viruses, can be achieved by a vaccine produced in insect cells, raising prospects for developing an effective vaccine for humans, according to new research.
Fri, 6 Mar 09
Historic Sample Of Bomb-grade Plutonium Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7qvA5ep2hXQ/090302130224.htm
Scientists in Washington state are reporting the surprise discovery of the oldest known sample of reactor-produced bomb-grade plutonium, a historic relic from the infancy of America's nuclear weapons program. Their research also represents the first demonstration of how radioactive sodium can be used as a tool in nuclear forensics.
Fri, 6 Mar 09
As Obesity Epidemic Spreads, More Patients Feel It In Their Bones And Joints
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dslwEVJOWjw/090227125943.htm
Common sense suggests that extra body weight severely stresses bones and joints. This higher, unprecedented level of obesity in the U.S. has affected the number of total hip replacements, implanted to restore mobility and relieve the chronic pain of hip degeneration.
Fri, 6 Mar 09
Genome Sequencing Of Fungus May Lead To Improved Bioethanol Production From Wood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/09be0shRpJU/090227072644.htm
Scientists have discovered the mechanisms with which certain types of fungus attacks wood in order to use the cellulose contained within. These results are important for designing processes using wood to produce bioethanol.
Fri, 6 Mar 09
Heart Hazards Of Woeful Wives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uFdK_k9r1yk/090305080143.htm
Women in strained marriages are more likely to feel depressed and suffer high blood pressure, obesity and other signs of "metabolic syndrome," a group of risk factors for heart disease, stroke and diabetes, psychologists found. The same study found men in strained marriages also are more likely to feel depressed, yet -- unlike women -- do not face an increased risk of metabolic syndrome.
Fri, 6 Mar 09
Captive Bred Black Tiger Prawns Lack Lust, 'Prawnography' Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9qdE0tDYAPA/090304091337.htm
A researcher has filmed hours of prawn "sex tapes" to find out why prawns bred in captivity did not go on to breed well.
Fri, 6 Mar 09
Rocket Aims For Cheaper Nudges In Space; Plasma Thruster Is Small, Runs On Inexpensive Gases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G0z-tViCP_Q/090223221524.htm
Satellites orbiting the Earth must occasionally be nudged to stay on the correct path. Scientists are developing a new rocket that could make this and other spacecraft maneuvers much less costly, a consideration of growing importance as more private companies start working in space.
Fri, 6 Mar 09
Immune Cells From Patients With Rheumatoid Arthritis Have Prematurely Aged Chromosomes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4LZXUw9vaJ0/090304182115.htm
Telomeres are the structures that cap the ends of a cell's chromosomes. Their proper maintenance is important for preventing cancer and premature aging. White blood cells from patients with rheumatoid arthritis have a deficiency in maintaining their telomeres, leading to the cells' premature aging and a loss of discriminatory power for the immune system.
Fri, 6 Mar 09
Musicians Have Biological Advantage In Identifying Emotion In Sound
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Sm4eX6fVLac/090303161427.htm
Looking for a mate who in everyday conversation can pick up your most subtle emotional cues? Find a musician, scientists say. They have provided biological evidence that musical training enhances the ability to recognize emotion in sound. "Quickly and accurately identifying emotion has implications in all arenas of interpersonal communication, whether in the predator-infested jungle or classroom, boardroom or bedroom," said a study co-author.
Fri, 6 Mar 09
Cochlear Implant Surgery Is Safe For The Elderly, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1yMF2RxOaWs/090227145144.htm
Contrary to conventional medical wisdom, a new study shows that healthy elderly patients with severe to profound hearing loss can undergo a surgical procedure to receive cochlear implants with minimal risk.
Fri, 6 Mar 09
Frog's Immune System Is Key In Fight Against Killer Virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yd4WBDQ3g-I/090227122252.htm
Scientists have discovered how changes to a frog's immune system may be the key to beating a viral infection which is devastating frog populations across the UK.
Fri, 6 Mar 09
Do Doodle: Doodling Can Help Memory Recall
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zNXhJZ4UmMA/090226210039.htm
Doodling while listening can help with remembering details, rather than implying that the mind is wandering as is the common perception. According to a new study in the journal Applied Cognitive Psychology, subjects given a doodling task while listening to a dull phone message had a 29 percent improved recall compared to their non-doodling counterparts.
Fri, 6 Mar 09
Schizophrenia Could Be Caused By Faulty Signaling In Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/i8jJNgH2BMg/090303082811.htm
Schizophrenia could be caused by faulty signaling in the brain, according to new research published in the journal Molecular Psychiatry. In the biggest study of its kind, scientists looking in detail at brain samples donated by people with the condition have identified 49 genes that work differently in the brains of schizophrenia patients compared to controls.
Fri, 6 Mar 09
Can Parasitic Hookworms Help In Treatment Of Multiple Sclerosis?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P5qnwD55T9k/090304091818.htm
Scientists will study the potential health benefits of parasitic worms as part of a study investigating treatments for people with the autoimmune condition multiple sclerosis (MS).
Fri, 6 Mar 09
Potential On-off Switch For Nanoelectronics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YBkaV0BqPik/090303161429.htm
Researchers have shown that electrical resistance through a molecular junction -- a nanometer scale circuit element that contacts gold atoms with a single molecule -- can be turned "on" and "off" simply by pushing and pulling the junction. This feature has potential for being used as a switch in future nanoscale electronic devices.
Fri, 6 Mar 09
Artificial Disc Replacement As Good Or Better Than Spinal Fusion Surgery, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TsitKgzO0Pg/090227130929.htm
Spine surgeons are reporting that artificial disc replacement works as well and often better than spinal fusion surgery. The two procedures are performed on patients with damaged discs in the neck.
Fri, 6 Mar 09
Self-digestion As A Means Of Survival
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HU6ry0LlK5M/090227093556.htm
In times of starvation, cells tighten their belts: they start to digest their own proteins and cellular organs. Biochemists, cell biologists and geneticists have just come up with an explanation as to how autophagosomes know exactly which proteins and organelles they should degrade.
Thu, 5 Mar 09
Mars Life? Computer Analysis Hints At Water – And Life – Under Olympus Mons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FN4NcYaowQw/090304114246.htm
The Martian volcano Olympus Mons is about three times the height of Mount Everest, but it's the small details that astronomers are looking at in thinking about whether the Red Planet ever had -- or still supports -- life.
Thu, 5 Mar 09
Depression Increases Risk For Heart Disease More Than Genetics Or Environment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LAe40Au70rs/090304182113.htm
A history of major depression increases the risk of heart disease over and above any genetic risks common to depression and heart disease, according to researchers at the School of Medicine and the VA. The findings are reported this week at the annual meeting of the American Psychosomatic Society this week in Chicago.
Thu, 5 Mar 09
Two Food Additives Have Previously Unrecognized Estrogen-like Effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oG2r-yYhEnY/090302125924.htm
Scientists in Italy are reporting development and successful use of a fast new method to identify food additives that act as so-called "xenoestrogens" -- substances with estrogen-like effects that are stirring international health concerns. They used the method in a large-scale screening of additives that discovered two additives with previously unrecognized xenoestrogen effects.
Thu, 5 Mar 09
New Technique For Cancer Screening
http://feeds.sciencedaily.com/~r/sciencedaily/~3/M1NTQb2n-jg/090223121507.htm
Current research suggests that a new technique to determine tumor methylation status can be used in archived tissue samples.
Thu, 5 Mar 09
With Genomes, Bigger May Really Be Better
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hrJs0NfFV_I/090304091242.htm
Biologists analyzing DNA in search of the molecular underpinnings of life have consistently favored species with small genomes, which are cheaper to sequence and lack the repetitive "junk" that clutters bigger genomes. But a new study suggests that when it comes to figuring out how genes are controlled, bigger genomes are much more useful.
Thu, 5 Mar 09
Brain Differences Found Between Believers In God And Non-believers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PeLMZIv_QwY/090304160400.htm
Believing in God can help block anxiety and minimize stress, according to new research that shows distinct brain differences between believers and non-believers.
Thu, 5 Mar 09
Tropical Lizards Can't Take The Heat Of Climate Warming
http://feeds.sciencedaily.com/~r/sciencedaily/~3/c3FopgCaFgI/090303193954.htm
Lizards living in tropical forests in Central and South America and the Caribbean could be in serious peril from rising temperatures associated with climate change. In fact, those forest lizards appear to tolerate a much narrower range of survivable temperatures than do their relatives at higher latitudes and are actually less tolerant of high temperatures, according to biologists.
