ScienceDaily Environment Headlines
for Sunday, October 17, 2010
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Studies of radiative forcing components: Reducing uncertainty about climate change (October 16, 2010) -- Much is known about factors that have a warming effect on Earth's climate -- but only a limited amount is understood about factors that have a cooling effect. Researchers in Norway are working to fill the knowledge gap by studying as many radiative forcing components as possible simultaneously. ... > full story
Scientists discover new species in one of world’s deepest ocean trenches (October 16, 2010) -- Scientists investigating in one of the world's deepest ocean trenches -- previously thought to be void of fish -- have discovered an entirely new species. ... > full story
Unsung hero: Researchers produce high-res model of Ndc80 in action (October 16, 2010) -- Scientists have used cryo-electron microscopy and three-dimensional image reconstruction to create a subnanometer resolution image of Ndc80, a protein complex that helps prevent chromosomal distribution mistakes during mitosis that can lead to birth defects, cancer and other disorders. ... > full story
What did Tyrannosaurus rex eat? Each other (October 15, 2010) -- It turns out that the undisputed king of the dinosaurs, Tyrannosaurus rex, didn't just eat other dinosaurs but also each other. Paleontologists from the United States and Canada have found bite marks on the giants' bones that were made by other T. rex, according to a new study. ... > full story
New look at multitalented protein sheds light on mysteries of HIV (October 15, 2010) -- New insights into the human immunodeficiency virus (HIV) infection process, which leads to acquired immunodeficiency syndrome (AIDS), may now be possible through a research method that allows scientists to glimpse an important protein molecule's behavior with unprecedented clarity. ... > full story
Squid studies provide valuable insights into hearing mechanisms (October 15, 2010) -- The ordinary squid, Loligo pealii -- best known until now as a kind of floating buffet for just about any fish in the sea -- may be on the verge of becoming a scientific superstar, providing clues about the origin and evolution of the sense of hearing. ... > full story
Eat safer: Novel approach detects unknown food pathogens (October 15, 2010) -- Researchers have developed a novel approach to automated detection and classification of harmful bacteria in food. The investigators have designed and implemented a sophisticated statistical approach that allows computers to improve their ability to detect the presence of bacterial contamination in tested samples. ... > full story
Is anxiety contagious? Scientists study owls and voles to find out (October 15, 2010) -- Scientists are investigating the anxieties experienced by an entire social group using the natural predator-and-prey relationship between the barn owl and the vole. Research suggests that the voles' behavior explains human response to trauma or terror, such as that of New York City citizens in the days after the Sept. 11 terror attacks. ... > full story
Carbon dioxide controls Earth's temperature, new modeling study shows (October 15, 2010) -- Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on the atmospheric level of carbon dioxide. ... > full story
Using discards, scientists discover different dinosaurs' stomping grounds (October 15, 2010) -- By examining the type of rock in which dinosaur fossils were embedded, an often unappreciated part of the remains, scientists have determined that different species of North American dinosaurs from the Late Cretaceous period 65 million years ago occupied different environments separated by just a few miles. ... > full story
Gene's location on chromosome plays big role in shaping how an organism's traits evolve (October 15, 2010) -- A gene's location on a chromosome plays a significant role in shaping how an organism's traits vary and evolve, according to new findings by genome biologists. Their research suggests that evolution is less a function of what a physical trait is and more a result of where the genes that affect that trait reside in the genome. ... > full story
Temperature rhythms keep body clocks in sync (October 15, 2010) -- Researchers have found that fluctuations in internal body temperature regulate the body's circadian rhythm, the 24-hour cycle that controls metabolism, sleep and other bodily functions. ... > full story
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