How do you reproduce when you lack the genes for reproduction?   Duke University Medical Center researchers want to know also because that can tell a lot about how yeast infections occur.  

In a paper published in Nature, Joseph Heitman, M.D., Ph.D., director of the Center for Microbial Pathogenesis in the Duke Department of Molecular Genetics and Microbiology and colleagues report that eight Candida species which have a sexual cycle were missing many of the genes related to reproduction found in other species.   

It appears that some superbugs have evolved to develop the ability to manipulate the immune system - and that can be a good thing, say a team of researchers at The University of Western Ontario.

Some processes that reduce the lethal effects of toxins from superbugs allow humans and microbes to co-evolve, a discovery that may lead to novel alternatives to antibiotics that specifically target the toxic effects of these superbugs.

Today’s children are coming of age immersed in a world video games, instant messaging and 3-D avatars  of themselves. Many have cell phones, laptops, and hand-held video games.  Heck, even robot pets are being raised in virtual worlds.

What impact does this technology have on children?

The journal Children, Youth and Environments (CYE) this month published a special issue titled “Children in Technological Environments.” The issue examines the increasing prevalence of technology from various perspectives, including knowledge and education, social and moral development, culture and community, access and equity, relationship to nature, therapy and health, art and expression, and future scenarios. 

San Diego, CA, March 17, 2009 – The benefits of moderate physical activity to general health and well-being are well known. It is recommended that people engage in 150 minutes per week of moderate intensity physical activity, equivalent to 30 minutes each day 5 times a week. Although pedometers are widely used as a physical activity monitoring tool, they are unable to measure activity intensity. Researchers have determined that a rate of at least 100 steps per minute achieves moderate intensity activity. Therefore a simple pedometer-based recommendation of 3000 steps in 30 minutes can get people started on a meaningful exercise program. The study is published in the May 2009 issue of the American Journal of Preventive Medicine.

The International Institute for Species Exploration at Arizona State University and an international committee of taxonomists – scientists responsible for species exploration and classification – today announce the top 10 new species for 2009, consisting of those described in 2008.  

Part 1 and Part 2

How were the Top 10 chosen?

The International Institute for Species Exploration at Arizona State University and an international committee of taxonomists – scientists responsible for species exploration and classification – today announce the top 10 new species described in 2008.