Updated: 1 hour 28 min ago
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. Now, using new techniques, a study has estimated that the population of salamanders in forested regions may be on average 10 times higher than previously thought.
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 also showed that for mothers who delivered their babies by a cesarean section, whether elective or non-elective, there was a higher risk for obesity in their offspring.
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.
Two sensors in one: Nanoparticles that enable both MRI and fluorescent imaging could monitor cancer, other diseases
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 of conversation and enhance the quality of time spent together, despite the fact that most don't necessarily involve any direct communication. The games can also bring together family members who may be only distantly connected, with respondents citing experiences such as connecting with long-lost cousins or bolstering relationships with aging aunts.
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. A new study shows that two specific functional fibers may also have the potential to assist in weight loss when made part of a long-term, daily diet.
A bird's-eye view of the protein universe: First global picture of the evolutionary origins of proteins
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. Now, new research is providing a first step toward piecing together a global picture of the protein universe that may answer these questions and suggest strategies for the design of new proteins.
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, which are broader and have a lower threshold for diagnosing ADHD; promotion of pharmaceutical treatments by ADHD advocacy groups that work closely with drug companies; and the easy availability of ADHD information and self-diagnosis via the Internet.
Jurassic climate of large swath of western U.S. was more complex than previously known: Unexpected abrupt change from arid to wet
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. Samples were from the Morrison Formation, a massive rock unit sprawling across 13 states and Canada that's produced significant dinosaur discoveries for over 100 years.
An investigational treatment for Marfan syndrome is as effective as the standard therapy at slowing enlargement of the aorta, the large artery of the heart that delivers blood to the body, new research shows. The findings indicate a second treatment option for Marfan patients, who are at high risk of sudden death from tears in the aorta.
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. Yet, planners often lack good information about how human activities will impact shoreline and ocean habitats now and in the future. This study developed the information the Belizean government sought to make informed management decisions.
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.
Overhunting has been disastrous for elephants, but their forest habitats have also been caught in the crossfire. A first-of-its-kind study shows that the dramatic loss of elephants, which disperse seeds after eating vegetation, is leading to the local extinction of a dominant tree species, with likely cascading effects for other forest life.
Adult bees foraging for food use the changing pheromone signals of the young to adjust what nutritional resources they collect. Honey bees return to the hive with one and one half times more protein-rich pollen, when exposed to young larvae as compared to old larvae. The researchers also discovered that significantly fewer foragers return home empty -- a finding that could have an impact in agricultural enterprises.