Many studies in coaching literature have found that male athletes tend to prefer a male coach. Newly released research from the University of Alberta has indicated that male athletes actually prefer a female team physician to attend to their medical issues, including those related to sexual health.

With gold nanoparticles, DNA and some smart chemistry as their tools, scientists at Northwestern University have developed a simple "litmus test" for mercury that eventually could be used for on-the-spot environmental monitoring of bodies of water, such as rivers, streams, lakes and oceans, to evaluate their safety as food and drinking water sources.

An article detailing the colorimetric screening technology and its success detecting mercury will be published online April 27 by Angewandte Chemie, the prestigious European journal of applied chemistry.

Arthritis cases on the rise, finds comparative national study, underscoring the need for cost-effective care and disability-reduction efforts

"Arthritis and other rheumatic conditions exact a large and growing economic toll on the nation as a result of the increase in numbers of persons affected, rather than an increase in mean expenditures and earnings losses," attests Charles G. Helmick, M.D., at the National Center for Chronic Disease Prevention and Health Promotion of the Centers for Disease Control and Prevention. He bases his conclusion on a nationwide assessment of medical expenditures and earnings losses associated with arthritis in 2003, compared with figures six years before.

A unique pattern of gene expression observed in rats may be linked to a conditioned desire for food and excessive food intake, an article published today in BMC Biology suggests.

An international has developed a prototype of the first fully integrated prosthetic arm that can be controlled naturally and provide sensory feedback, and allows for eight degrees of Freedom -- a level of control far beyond the current state of the art for prosthetic limbs.

Over time, more women are developing multiple sclerosis (MS) than men, according to research that will be presented at the American Academy of Neurology’s 59th Annual Meeting in Boston, April 28 – May 5, 2007.

In 1940, the ratio of women to men with MS in the United States was approximately two to one. By 2000, that ratio had grown to approximately four to one.

A role for a microRNA in the immune system has been shown by study of one of the world’s first microRNA knockout mouse. The microRNA acts as a lynchpin to balance the response of immune defences and the researchers suggest the corresponding human gene will have a similar vital role.

MicroRNAs (also known as siRNAs - short, interfering RNAs) are short (22-25 base) sequences that do not code for protein, but can lead to destruction of other RNA molecules or can interfere with their translation. They bind to corresponding bases in the target RNA. The mature microRNAs are derived from larger precursor molecules.

A new technique for creating films of barium titanate (BaTiO3) nanoparticles in a polymer matrix could allow fabrication of improved capacitors able to store twice as much energy as existing devices. The improved capacitors could be used in consumer devices such as cellular telephones – and in defense applications requiring both high energy storage and rapid current discharge.

The characteristics of the vegetation that inhabited Earth 21 million years ago can be vital to get to know climatic evolution in the last million years and the causes for these changes.

Samples of the sedimentary bowls of the geographic section from the south of Spain to Turkey give researchers cause to theorize that 14 million years ago there were glaciations in the south pole that changed the ruling subtropical climate into warm and transformed the characteristic vegetation of this area.

A team of scientists announced today confirmation of a link between massive volcanic eruptions along the east coast of Greenland and in the western British Isles about 55 million years ago and a period of global warming that raised sea surface temperatures by five degrees (Celsius) in the tropics and more than six degrees in the Arctic.

The study is important, experts say, because it documents the Earth’s response to the release of large amounts of greenhouse gases – carbon dioxide and methane – into the atmosphere, and definitively links a major volcanic event with a period of global warming.