Reflected solar particles can reveal details about the surfaces of other worlds
Continue reading about Team Detects High-Speed Hydrogen Atoms Coming From the Moon
Throughout the animal kingdom brilliant colors or elaborate behavioral displays serve as “advertisements” for attracting mates. But, what do the ads promise, and is there truth in advertising? Researchers theorize that when males must provide care for the survival of their offspring, the males’ signals will consistently be honest — and they may devote more [...]
Continue reading about Mate Selection: Honesty In Advertising Pays Off
Despite great strides in treating childhood leukemia, a form of the disease called T-cell acute lymphoblastic leukemia (T-ALL) poses special challenges because of the high risk of leukemic cells invading the brain and spinal cord of children who relapse. Now, a new study reveals the molecular agents behind this devastating infiltration of the central nervous [...]
Continue reading about Key Found To How Tumor Cells Invade The Brain In Childhood Cancer
Scientists have identified the key substances in exhaled breath associated with healthy and diseased kidneys — raising expectations, they say, for development of long-sought diagnostic and screening tests that literally sniff out chronic renal failure (CRF) in its earliest and most treatable stages.
Continue reading about Toward An ‘Electronic Nose’ To Sniff Out Kidney Disease In Exhaled Breath
A radically different approach to choosing the best treatment options for early breast cancer has been proposed by an international panel of experts. The report represents the consensus on early breast cancer treatment that emerged from the conference of more than 4,800 participants from 101 countries, which took place in March 2009.
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Researchers have completed the genome sequence of Azotobacter vinelandii, uncovering important genetic information that will contribute to a more complete understanding of the biology of this versatile, soil-living bacterium and pave the way for new applications, including the possible use of A. vinelandii for the production of other proteins.
Continue reading about Genome Of Nitrogen-fixing, Soil-living Bacterium Sequenced
Between 2003 and 2007, the progress made in the 1990s and early 2000s in improving teen contraceptive use and reducing teen pregnancy and childbearing stalled, and may even have reversed among certain groups of teens, according to a new study.
The sun is in the pits of a century-class solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why. Researchers have discovered that a jet stream deep inside the sun is migrating slower than usual through the star’s interior, giving rise to [...]
Continue reading about Mystery Of The Missing Sunspots Solved?
It is possible to determine which patients run a high risk of developing Alzheimer’s disease and the dementia associated with it, even in patients with minimal memory impairment.
Continue reading about Cerebrospinal Fluid Shows Alzheimer’s Disease Deterioration Much Earlier
Climate change is altering North American winter bird communities in ways that models currently favored by ecologists fail to predict. Current distributions of animals among different climate zones suggest that, as habitats warm, numbers of species will increase and that those species will be smaller in size and restricted to narrower geographic ranges, but only [...]
Continue reading about ‘Weedy’ Bird Species May Win As Temperatures Rise