Scientists report new take on sexual signaling
...his hood. In this way they reach the males burrow quickly and directly and avoid their predators. "When we bait predatory birds into the areaartificially increasing the risk of predation, females show an even greater preference for males who have built hoods," said STRI staff scientist John Christy, who ...Study assesses lung treatments for premature babies
...produce the essential lubricant, and air sacs are quickly damaged trying to function without it, even with ventilator support. Neonatologists try to prevent damage by giving surfactant within the first hour after birth to tide the baby over until his own lungs start producing it some 48 hours later, Dr. B...Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness
...cellular signals. Once activated the receptors are quickly turned-off by an enzyme called a G protein-coupled receptor kinase. This process is called desensitization and can limit the effectiveness of many drugs, such as opiates for pain and adrenaline for asthma, and is further associated with numerous dise...Work with nanoparticles may lead to 'on-the-spot' virus detector
...ological samples, such as blood, a device that can quickly and easily detect them has remained elusive. Typic...ignals from low concentrations of viral particles, quickly indicating whether or not a virus is present on a surface. "The bottleneck was how to transport and ...Study confirms the risk of exposure to secondhand tobacco smoke outdoors
...acco smoke is insignificant, because it dissipates quickly into the air," said Neil Klepeis, assistant professor (consulting) of civil and environmental engineering at Stanford and lead author of the study. "But our findings show that a person sitting or standing next to a smoker outdoors can breathe in wisp...Unstable leukemia stem cells may predispose patients to drug resistance
...onic myeloid leukemia stem cells has a tendency to quickly mutate, and this may help explain why patients are predisposed to resistance to drugs like imatinib that target that gene, according to a study in the May 2 Journal of the National Cancer Institute . Treatment with imatinib causes clinical remiss...Amphibians in losing race with environmental change
...of evolution and the inability of species to adapt quickly enough can explain most of the causes that are leading one species after another of amphibians into decline or outright extinction, say researchers from Oregon State University, in a study published today in the journal BioScience. "We know that th...Smelling for first time results from knowing abnormalities in congenital loss of smell
...rounds us all, and it is with excitement that they quickly begin to learn what different things smell like and to relate those odors to objects they have known all their lives, says Dr. Henkin. Dr. Henkins Experimental Biology presentation, on April 30, is part of the scientific program of The American Phy...'Supermap' of avian flu yields new info on source/spread
... predict where public health officials need to act quickly to begin countermeasures. "There was an interestin...nd to Belgium," says Janies. "While the birds were quickly confined and the virus didn't spread at that point, those cases did show up as a clear anomaly in ou...Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?
...vax. "Another purpose of the study is to see how quickly people can be protected against smallpox after a release of smallpox into the environment," Frey said. Dryvax vaccine is the original Food and Drug Administration (FDA) licensed vaccine that was used to protect humans against smallpox disease. In th...Arming the fight against resistant bacteria
... designed a way to test large numbers of molecules quickly and efficiently. They synthesize molecules directly on a flexible, paper-like sheet, building from the bottom up by adding ingredients one at a time to sections of the sheet. The finished array has dozens of compounds arranged in a grid of dots,...Researchers identify new genetic risk factors for type 2 diabetes
...zing DNA purified from blood or cells, researchers quickly survey each participant's complete set of DNA, or genome, for strategically selected markers of genetic variation. If certain genetic variations are found more frequently in people with the disease compared to healthy people, the variations are sai...Scientists identify key to integrating transplanted nerve cells into injured tissue
... those studies cells injected into injured retinas quickly integrated into the existing retinal tissue. Intrigued by this phenomenon, Young and his team believed that if they could identify and harness the key molecules used by stem cells to gain access into the injured retina, they could potentially impro...Genome-wide search unearths surprising clues for diabetes and triglycerides
...e the best way to understand complex disorders and quickly turn that to therapeutic advantage," said Thomas Hughes, Head of Diabetes and Metabolism Research at the Novartis Institutes for BioMedical Research. Based on initial results, the DGI scientists turned to replicating the most promising findings in...Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck
...curveball. In real-life the process occurs far too quickly to evaluate visually, but by using the supercomputer simulations to break the throw down into a step-by-step process, the scientists can see the precise details of the role of velocity, trajectory, movement, and arm angle. To undertake the large-scal...Mosquito genes explain response to climate change
...ey used to. Many species will be unable to change quickly enough and will become extinct." "Climate change will change the seasonal ecology of many animals," Bradshaw said. "Rather than having a bully coming to beat you up at recess everyday, you can take a body-building course and beat up the bully, or ...How much nitrogen is too much for corn?
... State researchers recently discovered a test that quickly predicts nitrogen levels in the humid soil conditions of the southeastern United States. These scientists report that the Illinois Soil Nitrogen Test (ISNT) can assess the nitrogen levels in soil with more accuracy than current soil-based tests. This...'Junk' DNA now looks like powerful regulator, Stanford researcher finds
...en renamed "regulatory jungles." "It's funny how quickly the field is now evolving," Bejerano said. His work picking out these snippets and describing why they might exist will be published in the April 23 advance online issue of the Proceedings of the National Academy of Sciences. It turns out that most...FSU researcher's award will fund study into cardiovascular grafts
...new technological approaches that can produce them quickly and in greater quantities. "Vascular grafts are needed by thousands of patients who undergo bypass surgery every year," said Teng Ma, an FSU associate professor of biomedical engineering who supervises Zhaos research. "Small-diameter blood vessel r...Discoveries thrust cancer-initiating stem cells into a larger role in cancer biology and treatment
... had to be highly tumorigenic, creating new tumors quickly and from very few starting cells; had to be self-renewing, possessing a capacity to regenerate; and they had to produce tumors similar to the tumor of origin. "These CD44-producing cells fit the bill, although there is evidence to believe that CD44 o...