When sperm meets egg, the chemical instructions that tag sperm cells must be erased so that human life can start anew. One way these instructions are erased is through demethylation, the removal of specific chemical tags ...
Cell & Microbiology
Sep 22, 2011
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African ranchers often prefer to keep wild grazers like zebra off the grass that fattens their cattle. But a new study by UC Davis and Kenyan researchers shows that grazing by wild animals doesn't always harm -- and can sometimes ...
Ecology
Sep 22, 2011
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Why does a solid metal that is engineered for ductility become brittle, often suddenly and with dramatic consequences, in the presence of certain liquid metal impurities?
Condensed Matter
Sep 22, 2011
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Changes in the ratio of nitrate to phosphorus in the oceans off the coasts of Korea and Japan caused by atmospheric and riverine pollutants may influence the makeup of marine plants and influence marine ecology, according ...
Environment
Sep 22, 2011
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Students who attend sex-segregated schools are not necessarily better educated than students who attend coeducational schools, but they are more likely to accept gender stereotypes, according to a team of psychologists.
Social Sciences
Sep 22, 2011
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Not long after the development of the first laser in 1960 scientists discovered that shining a beam through certain crystals produced light of a different color; more specifically, it produced light of exactly twice the frequency ...
Nanophysics
Sep 22, 2011
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By successfully confining atoms of antihydrogen for an unprecedented 1,000 seconds, an international team of researchers called the ALPHA Collaboration has taken a step towards resolving one of the grand challenges of modern ...
General Physics
Sep 22, 2011
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In the hunt for new medicines, any technique that expedites drug candidates into the clinic is a welcome advance. A team led by Hiroyuki Osada at the RIKEN Advanced Science Institute, Wako, recently developed a faster way ...
Analytical Chemistry
Sep 22, 2011
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(PhysOrg.com) -- According to a new study published in Biology Letters, the climate changes and melting of ice in the Northwest Passage are leading to the mingling of two bowhead whale populations that have been separated ...
Bijou is an 18-month old French bulldog that appears perfectly normal at first glance. She is healthy and her behavior is exemplary. However, her owner brought her to the Université de Montréal Faculty of Veterinary ...
Plants & Animals
Sep 22, 2011
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