ScienceDaily Top Science Headlines -- for Sunday, April 3, 2011

ScienceDaily Top Science Headlines

for Sunday, April 3, 2011

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Optical transistor advance: Physicists rotate beams of light with semiconductor (April 2, 2011) -- Physicists have managed to control the rotation of light by means of a ultra thin semiconductor. The advance could potentially be used to create a transistor that works with light instead of electrical current. ... > full story

Engineered protein fragment blocks the AIDS virus from entering cells (April 2, 2011) -- In what could be a potential breakthrough in the battle against AIDS and a major development in the rational design of new drugs, scientists have engineered a new protein that prevents the virus from entering cells. ... > full story

Skywalker enzyme ensures optimal communication between neurons (April 2, 2011) -- Scientists have discovered the mechanism that ensures neurons can continue to send the right signals for long consecutive periods -- a process that is disrupted in neurological diseases such as Parkinson's. They discovered that an enzyme called Skywalker controls the subtle balance in communication. ... > full story

Soy increases radiation's ability to kill lung cancer cells, study shows (April 2, 2011) -- A component in soybeans increases radiation's ability to kill lung cancer cells, according to a new study. ... > full story

Manage biological invasions like natural disasters, biologists say (April 2, 2011) -- Biological invasions are often more economically damaging than natural disasters and warrant correspondingly large investments in preparedness and response planning, according to biologists. Such measures seem absent in most developed nations. ... > full story

Older and stronger: Progressive resistance training can build muscle, increase strength as we age (April 2, 2011) -- It's often thought that older adults must tolerate the strength and muscle loss that come with age. But analyses of current research reveal that not only can we fight the battle of strength and muscle loss as we age, we can even build muscle and strength well into our golden years. ... > full story

New nanomaterial can detect and neutralize explosives (April 2, 2011) -- Scientists have described the development and successful initial tests of a spray-on material that both detects and renders harmless the genre of terrorist explosives responsible for government restrictions on liquids that can be carried onboard airliners. It is an ink-like explosive detector/neutralizer. ... > full story

Insulin could be Alzheimer's therapy (April 2, 2011) -- A low dose of insulin has been found to suppress the expression in the blood of four precursor proteins involved in the pathogenesis of Alzheimer's disease, according to new clinical research. ... > full story

When food is scarce, hungry female spiders alter mating preferences (April 2, 2011) -- Weather and environmental change can bring alterations -- and scarcity -- in food resources. In looking at how such changes might affect mating choices and subsequent reproduction, researchers studied how hunger affects the mating preferences of common female spiders. ... > full story

Surprising finding from smoke inhalation study (April 2, 2011) -- A new study includes some unexpected findings about the immune systems of smoke-inhalation patients. Contrary to expectations, patients who died from their injuries had lower inflammatory responses in their lungs than patients who survived. ... > full story

Sun and shade leaves play different roles in tree canopies (April 2, 2011) -- "Outer" tree canopy leaves influence the sunlight reaching inner canopy leaves by changing their shape, says a new study. ... > full story

Out of work? Your resume is no good here: Unemployed Americans face discrimination, study finds (April 2, 2011) -- Through a series of simple experiments, researchers found that unemployed Americans face discrimination that is unrelated to their skills or conditions of departure. ... > full story

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