Nearly 20 percent of smokers using an over-the-counter nicotine patch in a new study were able to quit smoking entirely after six weeks, compared to only 7 percent of smokers using a dummy patch. Each group reported only mild side effects from patch use, like rashes or insomnia.
None of the smokers received any direct instruction on how to use the patch or got behavioral counseling to help them quit smoking, which suggests that nicotine patches used in an over-the-counter manner can be safe
With 46 chromosomes and six feet of DNA to copy every time most human cells divide, its not surprising that gaps or breaks sometimes show up in the finished product – especially when the cell is under stress or dividing rapidly, as in cancer.
But what is surprising – according to Thomas Glover, Ph.D., a geneticist at the University of Michigan Medical School – is that the breaks dont always occur at random. They happen at a few specific locations on chromosomes, when cells are u
Impacts on ecosystems are greater than previously anticipated
Projected increases in rainfall variability resulting from changes in global climate can rapidly reduce productivity and alter the composition of grassland plants, according to scientists funded by the National Science Foundation (NSF). Although the diversity of plant species is increased in this scenario, the most important or dominant grasses were more water-stressed and their growth was reduced. Carbon dioxide release by
Rush is first site in the Chicago area to obtain the stereotaxis technology and one of only two in the world with an emphasis on neurosurgical applications
Neurosurgeons at Rush-Presbyterian-St. Lukes Medical Center have become the first in the Chicago area to use a radically new, magnetically controlled system to enter the brain and its vascular system to treat a variety of diseases without surgically opening up the skull and brain.
“Magnet-guided neurosurgery allows
In stunning color images using time-lapse microscopy, researchers at the University of Illinois at Chicago have for the first time captured the very earliest stages of HIV infection in living cells.
The researchers filmed individual HIV particles as they traveled to the nucleus of a human cell and began taking over its genetic machinery — the first step in the destruction of the body’s immune system that leads to AIDS.
The movies not only offer tantalizing glimpses of HIV in acti
Nanotechnology could make life easier for computer manufacturers and tougher for terrorists, reports a Purdue University research team.
A group led by Jillian Buriak has found a rapid and cost-effective method of forming tiny particles of high-purity metals on the surface of advanced semiconductor materials such as gallium arsenide. While the economic benefits alone of such a discovery would be good news to chip manufacturers, who face the problem of connecting increasingly tiny com