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Health, Science & Technology News

How a genetic locus protects adult blood-forming stem cells
A particular location in DNA, called the Dlk1-Gtl2 locus, plays a critical role in protecting hematopoietic, or blood-forming, stem cells -- a discovery revealing a critical role of metabolic control in adult stem cells, and providing insight for potentially diagnosing and treating cancer, according to researchers from the Stowers Institute for Medical Research.

Shedding light on oil behaviors before the next spill
A comprehensive scientific report released today by The Royal Society of Canada has concluded that there are still critical research gaps hampering efforts to both assess the environmental impacts of crude oil spills and to effectively remediate them.

New gene map reveals cancer's Achilles heel
Scientists have mapped out the genes that keep our cells alive, creating a long-awaited foothold for understanding how our genome works and which genes are crucial in disease like cancer.

Closing the loop on an HIV escape mechanism
A collaborative six-university research team finds that the motion of a specific protein in a human cell regulates whether HIV will infect other cells. The finding may lead to promising new ways to thwart the virus that causes AIDS.

Researchers assess use of drug-susceptible parasites to fight drug resistance
Researchers at the University of Georgia have developed a model for evaluating a potential new strategy in the fight against drug-resistant diseases. The strategy would take advantage of parasite refugia--host populations not treated with drugs, thereby serving as 'safe zones' where parasites don't develop drug resistance. When parasites from refugia mix with their drug-resistant counterparts in the general population, they could reduce the incidence of drug-resistance overall, which may help prolong a drug's effectiveness.

Stanford technology makes metal wires on solar cells nearly invisible to light
Stanford University scientists have discovered how to make the electrical wiring on top of solar cells nearly invisible to incoming light. The new design, which uses silicon nanopillars to hide the wires, could dramatically boost solar-cell efficiency.

Data scientists create world's first therapeutic venom database
What doesn't kill you could cure you. A growing interest in the therapeutic value of animal venom has led a pair of Columbia University data scientists to create the first catalog of known animal toxins and their physiological effects on humans.

Peering into cell structures where neurodiseases emerge
In the Proceedings of the National Academy of Sciences, a Univeristy of Delaware-led research team reveals for the first time -- atom by atom -- the structure of CAP-Gly, a protein that binds to the latticework of microtubules in your cells. When mutations occur in CAP-Gly, neurological diseases and disorders occur, including Perry syndrome and distal spinal bulbar muscular dystrophy.

A changing season means a changing diet for bison
North American bison adjust their diet seasonally in order to take full advantage of the growing season when grasses become less nutritious, a new study led by researchers at the University of Colorado Boulder has discovered.

Halteres, essential for flight in all flies, are needed by some to climb walls
Research from Case Western Reserve University indicates sensory organs called halteres may play multiple roles in how flies behave, providing clues to how brains absorb and use multiple streams of information.

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