|Filed Under:||Academics / General Science|
|Posts on Regator:||77339|
|Posts / Week:||239|
|Archived Since:||September 10, 2008|
Scientists have found that a particular set of cells in a small region of the brain are responsible for memory problems after sleep loss. By selectively increasing levels of a signaling molecule in these cells, the researchers prevented mice from having memory deficits.
Palaeontologists are rewriting the history of New Zealand's ancient whales by describing a previously unknown genus of fossil baleen whales and two species within it. The two whales, which lived between 27-25 million years ago, were preserved in a rock formation near Duntroon in North Otago. Show More Summary
Leave it to long-dead short-tailed shrew and flying squirrels to outfox climate-modelers trying to predict future habitats. Evidence from the fossil record shows that gluttonous insect-eating shrew didn't live where a species distribution technique drawn by biologists put it 20,000 years ago to survive the reach of glaciers. The shrew is not alone.
Images from NASA's Dawn Mission have been used to create a series of high-resolution geological maps of the large asteroid Vesta, revealing the variety of surface features in unprecedented detail.
In the 1970s, ecologists published results from one of the first whole-forest ecosystem studies ever conducted. Scientists reported that salamanders represent one of the largest sources of biomass, or food, of all vertebrates in the forest. Show More Summary
A study just released by Columbia University's Mailman School of Public Health found that children who were exposed to antibiotics in the second or third trimester of pregnancy had a higher risk of childhood obesity at age 7. The research...Show More Summary
Generally considered a negative trait, entitlement, in small doses, can actually have the positive effect of boosting creativity.
Researchers have identified new evidence supporting the growing belief that Neanderthals were a distinct species separate from modern humans (Homo sapiens), and not a subspecies of modern humans.
On a quest to design an alternative to the two complex approaches currently used to produce electrons within microwave electron guns, a team of researchers has demonstrated a plug-and-play solution capable of operating in this high-electric-field environment with a high-quality electron beam.
Chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging and fluorescent imaging in animals. Such particles could help scientists to track specific molecules produced in the body, monitor a tumor's environment, or determine whether drugs have successfully reached their targets.
Vehicle inequities have a significant impact on survivability in head-on collisions, a study by a doctoral student in epidemiology shows. Motor vehicle crashes are the most common cause of unintentional life lost around the world, with about 30,000 deaths occurring annually in the U.S. due to motor-vehicle crashes.
Beyond being a fun distraction, social network games can offer family members a meaningful way to interact and meet social obligations, a new study concludes. Researchers found that some online games offer families a common topic ofShow More Summary
Psychologists have demonstrated a link between musical training and long-term memory advantages.
Most Americans don't get the daily recommended amount of fiber in their diet, though research has shown that dietary fiber can cause a shift in the gut toward beneficial bacteria, reducing the risk of colon cancer, type 2 diabetes, and other diseases. Show More Summary
How exactly did proteins first come to be? Do they all share a single common ancestor, or did proteins evolve from many different origins? Forming a global picture of the protein universe is crucial to addressing these and other important questions. Show More Summary
A new article attributes ADHD's global growth to five trends: expanded, overseas lobbying efforts by drug companies; the growth of biological psychiatry; the adaptation of the American-based Diagnostic and Statistical Manual standards,...Show More Summary
Climate over a large swath of the western US was more complex during the Jurassic than previously known, according to new research. Instead of a gradual transition from dry to wetter, chemical analysis of ancient soils reveals an unexpected abrupt change, say paleontologists. Show More Summary
New science and software make Belize coastal zone management plan better for people and the environment. With historic expansion of coastal and ocean development, ecosystems like coral reefs and mangrove forests are put at unprecedented risk. Show More Summary
A mother's 'TLC' not only can help soothe pain in infants, but it may also impact early brain development by altering gene activity in a part of the brain involved in emotions, according to a new study.
A research team has developed an analytical model to describe the structural dynamics of photoexcited thin films and verified it by ultrafast X-ray diffraction.