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Fri, 18 May 12
New exception to a decades-old rule about RNA splicing uncovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bkqiE7D1LQc/120517193139.htm
There are always exceptions to a rule, even one that has prevailed for more than three decades, as demonstrated by a new study on RNA splicing, a cellular editing process. The rule-flaunting exception uncovered by the study concerns the way in which a newly produced RNA molecule is cut and pasted at precise locations called splice sites before being translated into protein.

Fri, 18 May 12
Ancient history of circumarctic peoples illuminated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EteH-4VYF5Q/120517193137.htm
Scientists have discovered new information about the migration patterns of the first humans to settle the Americas. The studies identify the historical relationships among various groups of Native American and First Nations peoples and present the first clear evidence of the genetic impact of the groups' cultural practices.

Fri, 18 May 12
Phase I clinical trial shows drug shrinks melanoma brain metastases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iE4JhzJ44iI/120517193135.htm
An experimental drug targeting a common mutation in melanoma successfully shrank tumors that spread to the brain in nine out of 10 patients in part of an international phase I clinical trial report.

Fri, 18 May 12
Bioinformatics: We can learn a lot from other species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oRL4iYbDwdI/120517192929.htm
Researchers have confirmed the long-held belief that studying the genes we share with other animals is useful. The study shows how bioinformatics makes it possible to test the fundamental principles on which life science is built.

Fri, 18 May 12
Giant galaxy-packed filament revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Eqm92fqOlZ8/120517143639.htm
Astronomers have discovered a giant, galaxy-packed filament ablaze with billions of new stars. The filament is the first structure of its kind spied in a critical era of cosmic buildup when colossal collections of galaxies called superclusters began to take shape. The glowing galactic bridge offers astronomers a unique opportunity to explore how galaxies evolve and merge to form superclusters.

Fri, 18 May 12
Slew of rare DNA changes following population explosion may hold clues to common diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VGme1MQIqyQ/120517143635.htm
Scientists have taken a first step toward understanding how rare genetic differences among people contribute to leading chronic illnesses. One-letter DNA code changes occur frequently in human genomes, but each variant is usually found in only a few individuals. This phenomenon is consistent with the population explosion of the past 5,000 years. Studying the evolution of rare genetic variants and their health impact is critical as low cost, rapid sequencing enters clinical use. Such information would help doctors interpret personal genomes.

Fri, 18 May 12
Religion is a potent force for cooperation and conflict, research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mTPR_w6AaS0/120517143631.htm
Across history and cultures, religion increases trust within groups but also may increase conflict with other groups, according to a new analysis.

Fri, 18 May 12
Babies' susceptibility to colds linked to immune response at birth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RgUEUzhu5jk/120517143508.htm
Innate differences in immunity can be detected at birth, according to new research. And babies with a better innate response to viruses have fewer respiratory illnesses in the first year of life.

Fri, 18 May 12
In chemical reactions, water adds speed without heat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/g1Vu7Ek60ks/120517143506.htm
Scientists have discovered how adding trace amounts of water can tremendously speed up chemical reactions -â€” such as hydrogenation and hydrogenolysis â€”- in which hydrogen is one of the reactants, or starting materials.

Fri, 18 May 12
Forest diversity from Canada to the sub-tropics influenced by family proximity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W79B207tSYY/120517143504.htm
How species diversity is maintained is a fundamental question in biology. Biologists have shown for the first time that diversity is influenced on a spatial scale of unparalleled scope, in part, by how well tree seedlings survive under their own parents.