Drinking highly caffeinated alcoholic beverages triggers changes in the adolescent brain similar to taking cocaine, and the consequences last into adulthood as an altered ability to deal with rewarding substances, according to a Purdue University study.
Researchers have been trying for decades to develop a vaccine against the globally endemic hepatitis C virus (HCV). Now scientists at The Scripps Research Institute (TSRI) have discovered one reason why success has so far been elusive.
It's curious that we know relatively little about dogs' cognitive abilities when we know so much about the abilities of other animals, from primates to cetaceans. Over the last couple decades, researchers have been aiming to bridge this gap in scientific knowledge - now, a special issue of Current Directions in Psychological Science explores all that psychological scientists have learned about dog behavior and cognition in recent years.
A new study shows that hypoxia, i.e. low oxygen conditions, in European lakes started in 1850, becoming more widespread after 1900, long before the use of chemical fertilizers and climate change. A Canadian and European research team has identified urban expansion as the reason for the low amounts of bioavailable oxygen in numerous European lakes in past centuries.
Program also could be used in research and diagnosis of facial tics in disorders like Tourette Syndrome, schizophrenia and Parkinson's disease
In the West, wildfires have traditionally been suppressed to prevent them from getting out of control. But for 40 years in one watershed in Yosemite National Park, most natural fires have been left to burn. A UC Berkeley study shows that the strategy created a landscape more resistant to catastrophic fire, with more diverse vegetation and forest structure and increased water storage, mostly in the form of meadows in areas cleared by fires.
The study of this whale species, which numbers less than 500 individuals remaining in the Western Atlantic Ocean, may also help scientists better understand how vision works in other mammals, including people.
A new study has found that vitamin A-biofortified orange maize significantly improves visual functions in children. The study was conducted among school-aged children in rural Zambia. Children who ate orange maize showed improved night vision within six months. Their eyes adapted better in the dark, improving their ability to engage in optimal day-to-day activities under dim light, such as during dusk and dawn. The study was published in The Journal of Nutrition.
Viruses hijack the molecular machinery in human cells to survive and replicate, often damaging those host cells in the process. Researchers at the University of California San Diego School of Medicine discovered that, for cytomegalovirus (CMV), this process relies on a human protein called CPEB1. The study provides a potential new target for the development of CMV therapies.
University of Arizona bioarchaeologist James Watson's analysis of ancient graves provides new insight into the social and biological factors that might have motivated violent killings and atypical burials thousands of years ago, and how some of those factors may still be relevant today.