Chemists at the National Institute of Standards and Technology (NIST) have been the first to measure significant amounts of copper incorporated into zinc oxide (ZnO) nanowires during fabrication. The issue is important because copper plays a significant—but not well-understood—role in important optical and electrical properties of the nanowires. Previous experiments found only trace amounts of copper.
Five years ago on Feb. 20, 2003, pyrotechnics lit during a concert at The Station nightclub in West Warwick, R.I., started a rapidly spreading fire that caused the deaths of 100 people. Within a week, the National Institute of Standards and Technology (NIST) launched a two-year investigation of the tragic event to understand exactly what happened and to make recommendations for change based on those findings.
The same chemicals that keep food from sticking to our frying pans and stains from setting in our carpets are damaging the livers and impairing the immune systems of loggerhead turtles—an environmental health impact that also may signal a danger for humans.
A simple surface treatment technique demonstrated by a collaboration between researchers at the National Institute of Standards and Technology (NIST), Penn State and the University of Kentucky potentially offers a low-cost way to mass produce large arrays of organic electronic transistors on polymer sheets for a wide range of applications including flexible displays, intelligent paper and flexible sheets of biosensor arrays for field diagnostics.
New techniques for detecting emboli (harmful blood clots/air bubbles in arteries) developed at the University of Leicester have played a major role in dramatically reducing stroke rates after carotid endarterectomy. This is an operation designed to remove narrowings in the main arteries supplying the brain before they can cause a stroke.
A gene which helps a harmless African butterfly ward off predators by
giving it wing patterns like those of toxic species, has been identified
by scientists who publish their findings today (20 February 2008).
Listening to music in the early stages after a stroke can improve patients recovery, according to new research published online in the medical journal Brain today (Wednesday 20 February).
WASHINGTON, DC February 19, 2008 New findings show that a specialized virus with the ability to reproduce its tumor-killing genes can selectively target tumors in the brains of mice and eliminate them. Healthy brain tissue remained virtually untouched, according to a Feb. 20 report in The Journal of Neuroscience. With more research, the technique could one day offer a novel way of treating brain cancer in humans.
1. Actions of Cannabinoids and Opioids in Inhibitory Networks
Lindsey L. Glickfeld, Bassam V. Atallah, and Massimo Scanziani
Volcanoes are notoriously hard to study. All the action takes place deep inside, at enormous temperatures. So geophysicists make models, using what they know to develop theories about what they dont know.