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Diversity among the ancestors of such marine creatures as clams, sand dollars and lobsters showed only a modest rise beginning 144 million years ago with no clear trend afterwards, according to an international team of researchers. This contradicts previous work showing dramatic increases beginning 248 million years ago and may shed light on future diversity.
Berkeley -- Rather than suppressing local communities in developing nations, nature reserves attract human settlement, according to a new study by researchers at the University of California, Berkeley.
In an analysis of 306 rural protected areas in 45 countries in Africa and Latin America, the researchers found that, on average, the rate of human population growth along the borders of protected areas was nearly twice that of neighboring rural areas.
GAINESVILLE, Fla. --- A farm irrigation canal would seem a healthier place for toads than a ditch by a supermarket parking lot.
But University of Florida scientists have found the opposite is true. In a study with wide implications for a longstanding debate over whether agricultural chemicals pose a threat to amphibians, UF zoologists have found that toads in suburban areas are less likely to suffer from reproductive system abnormalities than toads near farms where some had both testes and ovaries.
Until now, it was commonly thought that colliding molecules get the shakes as the result of energy transfer solely from the smashing of the molecules, but some new research adds a second means by which colliding molecules become vibrationally excited--it is being called the "Tug o' War Mechanism."
GALWAY, IRELAND In response to the global health crisis, 26 leading authorities in competency-based and accreditation movements in global health promotion, health education, and public health reached an accord last week on what should comprise the domains of core competency in health promotion and health education.
BATON ROUGE LSU associate professor of sociology Troy C. Blanchard recently found that a community's religious environment that is, the type of religious congregations within a locale affects mortality rates, often in a positive manner. These results were published in the June issue of Social Forces, a leading journal in the field of sociology.
WASHINGTON— In an article published today in the journal Science, a group of former senior federal officials call for the establishment of an independent Earth Systems Science Agency (ESSA) to meet the unprecedented environmental and economic challenges facing the nation. They propose forming the new agency by merging the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS).
Diversity among the ancestors of such marine creatures as clams, sand dollars and lobsters showed only a modest rise beginning 144 million years ago with no clear trend afterwards, according to an international team of researchers. This contradicts previous work showing dramatic increases beginning 248 million years ago and may shed light on future diversity.
Toronto, ON, Canada - Acquired Immune Deficiency Syndrome (AIDS) is a global epidemic threatening the lives of millions
of people. Because there is no known cure, prevention of the transmission of the virus that causes AIDS, the Human
Immunodeficiency Virus (HIV), is critical for controlling the disease. The transmitting routes of HIV include breastfeeding, which
passes the virus from mothers to infants. This is a major problem in many areas of Africa, where HIV-positive mothers have no
CAMBRIDGE, Mass., July 3, 2008 -- Sirtris, a GlaxoSmithKline company focused on discovering and developing small molecule drugs to treat diseases of aging such as Type 2 Diabetes, is included among a research team that reported in today's online edition of Cell Metabolism that mice treated at middle-age to the end-of-life with resveratrol showed an overall health improvement, including improved bone health, a reduction in cataracts and cardiovascular dysfunction, and improved balance and motor coordination.
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