Researchers have found that the melanopsin pigment in the eye is potentially more sensitive to light than its more famous counterpart, rhodopsin, the pigment that allows for night vision.

For more than two years, the staff of the Laboratory for Computational Photochemistry and Photobiology (LCPP) at Ohio's Bowling Green State University (BGSU), have been investigating melanopsin, a retina pigment capable of sensing light changes in the environment, informing the nervous system and synchronizing it with the day/night rhythm. Most of the study's complex computations were carried out on powerful supercomputer clusters at the Ohio Supercomputer Center (OSC).

One of the issues of the Atapuerca sites that generates the most scientific debate is the dating of the strata where the fossils are found. Therefore, researchers at the Spanish National Research Centre for Human Evolution, among others, strive to settle the dates. A study published by the 'Journal of Archaeological Science' has clarified that the sediment of Gran Dolina, where the first remains of Homo antecessor were discovered in 1994, is 900,000 years old.

The findings at the Lower Palaeolithic cave site of Gran Dolina, in the Sierra de Atapuerca mountain range (Burgos), have led to major advancements in our knowledge of human evolution and occupation of Eurasia.

The lipid-rich membranes of cells are largely impermeable to proteins, but evolution has provided a way through – in the form of transmembrane tunnels. A new study shows in unmatched detail what happens as proteins pass through such a pore.

A large body of literature has shown that genetically-modified plants that produce proteins from the bacterium Bacillus thuringiensis (Bt) to protect themselves from insect pests have little to no effect on a wide range of nontarget insects. However, concerns about Bt crops still exist. Now two new studies using more exacting methods show that Bt crops have no negative effects on two beneficial insect predators or on a beneficial, entomopathogenic nematode.

A new study may alleviate concerns that the human papillomavirus (HPV) vaccine leads to either the initiation of sex or unsafe sexual behaviors among teenage girls and young women.

WASHINGTON - Single-sex education does not educate girls and boys any better than coed schools, according to research published by the American Psychological Association analyzing 184 studies of more than 1.6 million students from around the world. The findings are published online Feb. 3 in the APA journal Psychological Bulletin.

"Proponents of single-sex schools argue that separating boys and girls increases students' achievement and academic interest," said author Janet Shibley Hyde, PhD, of University of Wisconsin-Madison. "Our comprehensive analysis of the data shows that these advantages are trivial and, in many cases, nonexistent."

In a study to be presented on Feb. 6 at 3 p.m. CST, at the Society for Maternal-Fetal Medicine's annual meeting, The Pregnancy Meeting™, in New Orleans, researchers will report that women ages 35 and older are at a decreased risk of having a child with a major congenital malformation, after excluding chromosomal abnormalities.

Women who are 65 and older routinely undergo bone-density testing to screen for osteoporosis. But for those between the ages of 50 and 64, it has been unclear who should be screened.

Researchers sought to determine how well the current screening strategy recommended by the U.S. Preventive Services Task Force — the independent expert panel appointed by the federal government to review and recommend various screenings — would perform in identifying candidates in this age range for screening.

Using health data on women ages 50-64 from the Women's Health Initiative study, the researchers found that the current strategy would identify only 34 percent of women who actually had bone-mineral density in the osteoporosis range.

While each American political party has positions that are determined to undermine science (food, medicine and energy for Democrats, evolution and global warming for Republicans) their constituents still respect scientists overall, even if they don't accept the legitimacy of some fields.

While most Americans could be a bit more knowledgeable in the ways of science, a majority are interested in hearing about the latest scientific breakthroughs and think highly of scientists.

The National Science Foundation's biannual survey of over 2,200 people is part of their Science and Engineering Indicators that they do for the president and Congress.

SAN ANTONIO (Jan. 28, 2014) — Although inflammation is frequently a cause of disease in the body, research from The University of Texas Health Science Center at San Antonio indicates that low levels of a pro-inflammatory cytokine in the brain are important for cognition. Cytokines are proteins produced by the immune system.