ScienceDaily Environment Headlines
for Saturday, May 22, 2010
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Ocean stored significant warming over last 16 years, study finds (May 22, 2010) -- The upper layer of the world's ocean has warmed since 1993, indicating a strong climate change signal, according to a new study. The energy stored is enough to power nearly 500 100-watt light bulbs per each of the roughly 6.7 billion people on the planet. ... > full story
Low-cost, ultra-fast DNA sequencing brings diagnostic use closer (May 22, 2010) -- Researchers show the viability of a novel, more efficient method to sequence DNA using nanopores. By doing it fast and inexpensively, this method brings routine use of DNA sequencing in medical diagnostics closer to reality. ... > full story
Genes and brain centers that regulate meal size in flies identified (May 21, 2010) -- Biologists have identified two genes, the leucokinin neuropeptide and the leucokinin receptor, that appear to regulate meal sizes and frequency in fruit flies. Both genes have mammalian counterparts that seem to play a similar role in food intake, indicating that the steps that control meal size and meal frequency are not just behaviorally similar but are controlled by the same genes throughout the animal kingdom. ... > full story
I am treefrog, feel me shake (May 21, 2010) -- Using experiments involving a mechanical shaker and a robotic frog, researchers have found new evidence that male red-eyed treefrogs communicate with one another in aggressive contests by using vibrations they send through their plant perches. The findings open the door to further study of what has been a neglected channel for vertebrate communication. ... > full story
Better ways to inhibit blood clots revealed by new study (May 21, 2010) -- A new study reveals factors that improve the performance of synthetic fibrin "knobs", which bind to "holes" on fibrinogen molecules to prevent blood clot formation. The study also identifies a novel synthetic knob that displays a 10-fold higher affinity for holes than current synthetic knobs. ... > full story
Personality of geese determines their foraging behaviour (May 21, 2010) -- When searching for food, slow, shy barnacle geese follow information given by their flock mates. On the other hand, fast, bold geese ignore this type of information and go off in search for food on their own. Whether barnacle geese make use of social information (from other individuals) depends on their personality. ... > full story
New breakthrough in fight against lethal CCHF virus (May 21, 2010) -- Crimean-Congo haemorrhagic fever (CCHF) virus is a rare but serious human infection that causes internal bleeding, organ failure and ultimately death. Scientists have developed a new model to study CCHF which should enhance the development of vaccines and antivirals against this deadly disease. ... > full story
Scientists discover the molecular heart of collective behavior (May 21, 2010) -- A group of scientists seeking the answer to the mystery of collective motion has found strong evidence pointing to the idea that collective behavior can arise in cells that initially may not be moving at all, but are prodded into action by an external agent such as a chemical. ... > full story
New associations between diabetes, environmental factors found by novel analytic technique (May 21, 2010) -- Got diabetes? If so, you probably know that the adult-onset form of the disease can be triggered by, among other things, obesity and a fatty diet. You're also more likely to develop diabetes if other family members have it. But a new study suggests that you should also begin looking suspiciously at other aspects of your life -- like your past exposure to certain pesticides or chemicals and even one form of vitamin E. ... > full story
'Scrubbing' chemical-contaminated buildings clean with lasers (May 21, 2010) -- While no terrorist has managed to deploy a dirty bomb, the same cannot be said of chemical agents. In a series of tests still underway researchers are using lasers to scrub surfaces clean of sulfur mustard gas and VX, a nerve agent. The tests have proved successful so far, even on complex, porous surfaces like concrete. ... > full story
Human microbiome project: Diversity of human microbes greater than previously predicted (May 21, 2010) -- The Human Microbiome Project has published an analysis of 178 genomes from microbes that live in or on the human body. The researchers discovered novel genes and proteins that serve functions in human health and disease, adding a new level of understanding to what is known about the complexity and diversity of these organisms. ... > full story
In the green of health: Just 5 minutes of 'green exercise' optimal for good mental health (May 21, 2010) -- How much "green exercise" produces the greatest improvement in mood and sense of personal well-being? A new study has a surprising answer likely to please people in a society with much to do but a little time to do it: Just five minutes of exercise in a park, on a nature trail, or other green space will benefit mental health. ... > full story
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