In a new research study, Neuroeconomist Paul J. Zak of Claremont Graduate University and his colleagues gave doses of oxytocin and a placebo to participants, who were then offered a blinded, one-time decision on how to split a sum of money with a stranger who could accept or reject the split. The results were overwhelming: Those given oxytocin offered 80% more money than those given a placebo.

According to Zak, this means that although we are inherently altruistic, we are also generous when we feel empathy toward one another. It is empathy that causes us to open up our wallets and give generously to help strangers.

“Oxytocin specifically and powerfully affected generosity using real money when participants had to think about another’s feelings,” Zak explains.

Astronomers funded in part by the National Science Foundation (NSF) today announced their discovery of a fifth planet around the nearby star 55 Cancri, making it the only star aside from the sun known to have five planets.

The research results have been accepted for publication in the Astrophysical Journal. Lead author Debra Fischer, assistant professor of astronomy at San Francisco State University, said the fifth planet is within the star's habitable zone, in which water could exist as a liquid.

As sea levels rise, coastal communities could lose up to 50 percent more of their fresh water supplies than previously thought, according to a new study from Ohio State University.

Hydrologists here have simulated how saltwater will intrude into fresh water aquifers, given the sea level rise predicted by the Intergovernmental Panel on Climate Change (IPCC). The IPCC has concluded that within the next 100 years, sea level could rise as much as 23 inches, flooding coasts worldwide.

Scientists previously assumed that, as saltwater moved inland, it would penetrate underground only as far as it did above ground.

The 'dinosaurs became birds' evidence just got lot a little stronger. Except they were more like diving waterfowl than the land-based kind.

A University of Manchester team, comprising biologists and palaeontologists, has found that theropod dinosaurs like the Velociraptor had similar respiratory systems to present-day diving birds, such as marine birds.

The findings, published in the Proceedings of the Royal Society B: Biological Sciences, present for the first time an explanation of how these dinosaurs may have breathed.

A theory explaining the evolution of giant rodents, miniature elephants, and even miniature humans on islands has been called into question by new research published today in Proceedings of the Royal Society B: Biological Sciences.

A new study refutes the ‘island rule’ which says that in island environments small mammals such as rodents tend to evolve to be larger, and large mammals such as elephants tend to evolve to be smaller, with the original size of the species being the key determining factor in these changes.

The new research findings suggest that the tendency to either evolve larger or smaller on islands varies from one group of species to another, irrespective of original size.

Research has shown convincing evidence that dietary patterns practiced during adulthood are important contributors to age-related cognitive decline and dementia risk. An article published in Annals of the New York Academy of Sciences highlights information on the benefits of diets high in fruit, vegetables, cereals and fish and low in saturated fats in reducing dementia risk.

Adults with diabetes are especially sensitive to the foods they eat with respect to cognitive function. Specifically, an adult with diabetes will experience a decline in memory function after a meal, especially if simple carbohydrate foods are consumed.

World Community Grid is the largest public humanitarian grid with more than 333,000-plus members and links to more than 780,000 computers. Eight projects have been run on World Community Grid to date, including protein folding and FightAIDS@Home, which completed five years of HIV/AIDS research in just six months.

Now Canadian researchers expect to accelerate the war on cancer by tapping into that global network of hundreds of thousands of people who volunteer their idle computer time to tackle some of the world’s most complex problems.

A research team, led by Dr.

Scientists from P&G Beauty announced that they successfully sequenced the complete genome for Malassezia globosa (M. globosa), a naturally occurring fungus responsible for the onset of dandruff and other skin conditions in humans.

Dandruff and seborrheic dermatitis affect more than 50 percent of the human population. Despite the role of Malassezia in these and other common skin diseases, including eczema, atopic dermatitis and psoriasis, little was known about the fungus at the molecular level until this study. In addition, understanding of Malassezia’s genetic make-up may help scientists reevaluate the parameters that have historically been used to classify fungal organisms.

For the past four years, Gabor Forgacs, Professor of Physics at University of Missouri-Columbia, has been working to refine the process of “printing” tissue structures of complex shape with the aim of eventually building human organs. In a new study, the research team led by Forgacs determined that the process of building such structures by printing does not harm the properties of the composing cells and the process mimics the naturally occurring biological assembly of living tissues.

The reason; each year, pharmaceutical companies invest millions of dollars to test drugs, many of which will never reach the market because of side effects found only during human clinical trials. At the same time, the number of patients waiting for organ transplants continues to increase.

Individual brain chemistry and genes could be key to understanding why some people become addicted to nicotine and why the chemical compound's effects appear to diminish at night, University of Colorado at Boulder researchers say.

"The depth of a person's addiction to nicotine appears to depend on his or her unique internal chemistry and genetic make-up," said lead author Jerry Stitzel, an assistant professor in CU-Boulder's department of integrative physiology and researcher with CU-Boulder's Institute for Behavioral Genetics.

He and his team set out to evaluate the effects of nicotine over the course of a day by examining mice that could make and "recognize" melatonin, a powerful hormone and antioxidant, and others that could not.