Sabtu, 19 Maret 2011

ScienceDaily Environment Headlines

for Saturday, March 19, 2011

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Human prejudice has ancient evolutionary roots (March 18, 2011) -- The tendency to perceive others as "us versus them" isn't exclusively human but appears to be shared by our primate cousins, a new study has found. ... > full story

Human gender roles influence research on animals, Swedish biologists argue (March 18, 2011) -- Biologists have shown that animals' and plants' traits and behavior in sexual conflicts are colored by a human viewpoint. They want to raise awareness of the issue and provoke discussion among their colleagues in order to promote objectivity and broaden the research field. ... > full story

Ecologists use 70-year-old pressed plants to chart city's vanishing native flora (March 18, 2011) -- More than half of the world's population now lives in cities, yet we know little about how urbanization affects biodiversity. In one the first studies of its kind, ecologists in Indianapolis, USA have used 70-year-old dried plant specimens to track the impact of increasing urbanization on plants. ... > full story

Hospital infections: Unique antibody from llamas provide weapon against Clostridium difficile (March 18, 2011) -- Researchers say they are gaining a deeper understanding of virulent hospital infection and are closer to developing a novel treatment using antibodies from llamas. ... > full story

Record-breaking 2010 Eastern European/Russian heatwave (March 18, 2011) -- Scientists have compared the hot summers of 2003 and 2010 in detail for the first time. Last year’s heatwave across Eastern Europe and Russia was unprecedented in every respect: Europe has never experienced so large summer temperature anomalies in the last 500 years. ... > full story

Scientists take a look at systems biology and cellular networking (March 18, 2011) -- Systems biology holds promise for advances in such important areas as pharmaceuticals, environmental remediation and sustainable energy, but, according to two leading authorities, its most profound impact is that it might one day provide an answer to the central question: What is life? ... > full story

Japanese tsunami underscores need for elder disaster preparedness (March 18, 2011) -- The oldest segment of Japan's population will likely be the hardest hit as a result of the recent earthquake and subsequent tsunami, based on data from previous catastrophic events. Approximately 23 percent of Japanese citizens currently are age 65 and above. ... > full story

Dine or dash? Genes help worm decide when to look for new food (March 18, 2011) -- Researchers have identified a genetic circuit that helps worms decide whether to dine or dash. For worms, choosing when to search for a new dinner spot depends on many factors, both internal and external: how hungry they are, for example, how much oxygen is in the air, and how many other worms are around. A new study demonstrates this all-important decision is also influenced by the worm's genetic make-up. ... > full story

Insight into parasite 'family planning' could help target malaria (March 18, 2011) -- Fresh insight into the way the parasite that causes malaria reproduces could lead to new treatments to help curb the spread of the disease. ... > full story

New technologies to crack down on counterfeit whisky (March 18, 2011) -- Experts are working to create a handheld device which will detect fake whisky and wine – through the bottle. ... > full story

Flowering plant study 'catches evolution in the act' (March 18, 2011) -- A new study shows when two flowering plants are crossed to produce a new hybrid, the new species' genes are reset, allowing for greater genetic variation. ... > full story

World first: Localized delivery of an anti-cancer drug by remote-controlled microcarriers (March 18, 2011) -- Soon, drug delivery that precisely targets cancerous cells without exposing the healthy surrounding tissue to the medication's toxic effects will no longer be an oncologist's dream but a medical reality, new research suggests. Using a magnetic resonance imaging (MRI) system, scientists have successfully guided microcarriers loaded with a dose of anti-cancer drug through the bloodstream of a living rabbit, right up to a targeted area in the liver, where the drug was successfully administered. ... > full story


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