The earliest introduction of domestic chickens and black rats from Asia to the east coast of Africa came via maritime trade routes between the 7th and 8th centuries AD. In a paper published today in the journal PLOS ONE, an international team of researchers, led by director Nicole Boivin of the Max Planck Institute for the Science of Human History, used new techniques to analyze ancient DNA and proteins from nearly 500 bone samples.
Women who live in areas with higher levels of outdoor light at night may be at higher risk for breast cancer than those living in areas with lower levels, according to a large long-term study from Harvard T.H. Chan School of Public Health. The link was stronger among women who worked night shifts.
Researchers at the Skaggs School of Pharmacy and Pharmaceutical Sciences at the University of Colorado Anschutz Medical Campus and UC San Diego have found that compounds produced by the creosote bush, a desert shrub common to American Southwest, exhibit potent anti-parasitic activity against two deadly parasites responsible for Giardia infections (Giardia lamblia) and the amoeba that causes an often-lethal form of encephalitis (Naegleria fowleri). Standard treatment for both infections involve antibiotics and anti-parasitic drugs.
Hot weather can affect human behavior and has been linked to political rebellions and riots. A new study, the first to examine the influence of changes in temperature on peaceful and democratic political behavior, finds that voter behavior can change with increases in state-level temperature. For every 10C rise in temperature, voter turnout increased by 1.4 percent. In addition, when the weather was warmer, citizens chose to vote for the incumbent party.
Those at the top of their sporting game put their heart and soul into doing their best, but new research has shed light on why thriving at elite sports is far more complex than it appears. In the first study to examine thriving in elite sports performers, Dr. Daniel Brown, a sports scientist at the University of Portsmouth, and colleagues at the University of Bath, have identified internal and external factors which contribute to a sportsman or woman being -- and feeling -- outstanding.
Analysis of EU survey data suggests millions in UK may suffer anxiety as a result of unpredictable management-imposed flexible working hours. Research in supermarkets finds workers 'begging' for extra hours, and feeling they are being punished with last minute shift changes.
University of Kansas researchers in interviews with attorneys found immigrant detention complexes function like jails and prisons.
Binge-watching is a great way for young adults to catch up on multiple episodes of their favorite television series like 'The Walking Dead' or 'Game of Thrones,' but it comes at a price.
A new study examining breast cancer awareness in India has found that a lack of early diagnosis is leading the country towards an epidemic. They found that educating men could be key to encouraging women to seek help earlier.
Based on the examination of more than 2,000 skeletons from cadaveric and archaeological collections across the US, the Harvard study is the first to definitively show that knee osteoarthritis prevalence has dramatically increased in recent decades. The research also upends the popular belief that knee osteoarthritis is a wear-and-tear disease that is widespread today simply because more people are living longer and are more commonly obese.