http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- If manmade devices could be combined with biological machines, laptops and other electronic devices could get a boost in operating efficiency. http://www.physorg.com/news169145728.html Nanotechnology Mon, 10 Aug 2009 17:56:13 EST news169145728 Researchers at Sandia National Laboratories have created the first carbon nanotube device that can detect the entire visible spectrum of light, a feat that could soon allow scientists to probe single molecule transformations, study how those molecules respond to light, observe how the molecules change shapes, and understand other fundamental interactions between molecules and nanotubes. http://www.physorg.com/news160318604.html Nanotechnology Thu, 30 Apr 2009 13:57:21 EST news160318604 Scientists from the University of Wisconsin, USA, report in the journal Development the successful generation from human embryonic stem cells of a type of cell that can make myelin, a finding that opens up new possibilities for both basic and clinical research. http://www.physorg.com/news158475622.html Biology Thu, 09 Apr 2009 06:00:51 EST news158475622 The use of Avastin alone to treat a subgroup of recurrent Grade 3 brain tumors showed it was safe and effective at delaying tumor progression, according to a retrospective study of 22 patients conducted by a researcher at the Seattle Cancer Care Alliance. http://www.physorg.com/news158247276.html Medicine & Health Mon, 06 Apr 2009 14:35:07 EST news158247276 They say a picture tells a thousand stories, but can it also tell how smart you are? Actually, say UCLA researchers, it can. http://www.physorg.com/news156519927.html Medicine & Health Tue, 17 Mar 2009 14:46:10 EST news156519927 The phenomenon of light emission by living organisms, bioluminescence, is quite common, especially in marine species. It is known that light is generated by chemical reactions in which oxygen molecules play an important part. In the animal world, these chemical reactions take place in special luminescent cells called photocytes. These are aggregated into complex light organs, in which the intensity of light is regulated by nerve impulses, and in which light can be modulated with the help of reflectors, lenses and filters. By these means, organisms can adjust the wavelength, diffusion and intensity of light according to need. But the exact mechanisms behind these processes remain shrouded in mystery. http://www.physorg.com/news154618501.html Biology Mon, 23 Feb 2009 13:35:34 EST news154618501 (PhysOrg.com) -- Understanding the mechanisms by which the brain functions is one of the most complex challenges in science. One important aspect is the electrical conduction of stimuli in nerve cells. In order to study neuronal circuits, a sharp metal electrode is usually inserted into the brain to introduce a current. However, the response does not reflect the highly complex activation patterns of natural nerve stimuli. http://www.physorg.com/news154343296.html Chemistry Fri, 20 Feb 2009 09:09:06 EST news154343296 (PhysOrg.com) -- Bed bugs, once nearly eradicated in the built environment, have made a big comeback recently, especially in urban centers such as New York City. In the first study to explain the failure to control certain bed bug populations, toxicologists at the University of Massachusetts Amherst and Korea`s Seoul National University show that some of these nocturnal blood suckers have developed resistance to pyrethroid insecticides, in particular deltamethrin, that attack their nervous systems. http://www.physorg.com/news150651765.html Biology Thu, 08 Jan 2009 15:42:45 EST news150651765