Culture

Between 2000 and 2004, worldwide CO2 emissions increased at a rate that is over three times the rate during the 1990s—the rate increased from 1.1 % per year during the 1990s to 3.1% per year in the early 2000s.

The world's oldest wooden anchor was discovered during excavations in the Turkish port city of Urla, the ancient site of Liman Tepe -- the Greek 1st Millennium BCE colony of Klazomenai, by researchers from the Leon Recanati Institute for Maritime Studies of the University of Haifa. The anchor, from the end of the 7th century BC, was found near a submerged construction, imbedded approximately.1.5 meters underground. Anchor found at the site. Credit: University of Haifa

Based on a Finnish study, smokers have higher risk of depression than non-smokers. In addition, smokers who quit have an elevated risk of depressive symptoms in the short term.

It is known that depression is associated with cigarette smoking, but the nature of this association has been unclear.

According to the self-medication hypothesis, those who suffer from depressive symptoms smoke cigarettes in order to alleviate their symptoms.

The High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express has captured breathtaking images of the Deuteronilus Mensae region on Mars.

A new study finds that the heat setting you choose when doing laundry makes all the difference when it comes to killing dust mites. The researchers found that washing laundry in hot water--140 degrees Fahrenheit (60 ºC) or higher--kills all house dust mites, compared with just 6.5% of dust mites in laundry washed at 104 degrees Fahrenheit (40 ºC), or warm water.

Hotter water temperatures are also more effective in removing dog dander and pollen, says lead researcher Jung-Won Park, M.D., Ph.D., of Yonsei University in Seoul, Korea.

Scientists supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) at the National Institutes of Health have created two mouse strains that will permit researchers to trace, in a live animal, the activity of an enzyme believed to play a crucial role both in the normal immune response as well as autoimmunity and B cell tumor development. In this picture of intestinal villi from one of the new mouse strains, plasma cells are tagged with yellow (green-appearing) fluorescent protein.

Combining statistics and chemistry, researchers are challenging the evidence for the lone-gunman theory in the 1963 assassination of United States President John F. Kennedy.

Illinois State University’s Board of Trustees today approved a new bachelor’s degree in renewable energy, which will include a technical sequence and an economics and public policy sequence.

The degree is a multi-disciplinary undergraduate major that provides a broad overview of renewable energy industries. Renewable energy is a fast-growing industry that will call for many new workers in the future.

Analyzing 30 years of data detailing a large rabies virus outbreak among North American raccoons, researchers at Emory University have revealed how initial demographic, ecological and genetic processes simultaneously shaped the virus's geographic spread over time. The study appears online in the Proceedings of The National Academy of Sciences.

New evidence may help explain the brute strength of the tyrannosaurid, says a University of Alberta researcher whose finding demonstrates how a fused nasal bone helped turn the animal into a "zoological superweapon."

"Fused, arch-like nasal bones are a unique feature of tyrannosaurids," said Dr. Eric Snively, a post doctoral research fellow at the University of Alberta. "This adaptation, for instance, was keeping the T. rexes from breaking their own skull while breaking the bones of their prey."Credit: University of Alberta