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. (AP) -- Powerful scans are letting doctors watch just how the brain changes in veterans with post-traumatic stress disorder and concussion-like brain injuries - signature damage of the Iraq and Afghanistan wars. http://www.physorg.com/news177009585.html Medicine & Health Mon, 09 Nov 2009 17:40:03 EST news177009585 (PhysOrg.com) -- Cancer cells, like bacteria, can develop resistance to drug therapy, leading to relapse of disease. One approach showing promise in overcoming multidrug resistance in tumors is to combine two different anticancer agents in one nanoscale construct, providing a one-two punch that can prove lethal to such resistant cells. An example of this approach appears in the journal Small. http://www.physorg.com/news176541150.html Nanotechnology Wed, 04 Nov 2009 07:12:55 EST news176541150 A new study by researchers at the Institute of Psychiatry (IoP), King's College London has discovered abnormalities in the white matter of the brain that seem to be critical for the timing of schizophrenia. The study, led by Professor Phillip McGuire and Dr Sophia Frangou, has been published in this month's edition of the British Journal of Psychiatry. http://www.physorg.com/news175776344.html Medicine & Health Mon, 26 Oct 2009 11:46:34 EST news175776344 When it comes to the two basic types of cells, prokaryotes and eukaryotes, compartmentalization is everything. Prokaryotes are evolutionarily ancient cells that only have a membrane surrounding their outer boundary, while the more complex eukaryotes have an outer membrane and membrane bound compartments within the cell. Perhaps most notable is the double layered membrane that surrounds the nucleus, the cellular compartment which houses the cell's genetic material. http://www.physorg.com/news174050458.html Chemistry Tue, 06 Oct 2009 12:25:25 EST news174050458 (PhysOrg.com) -- A team of international researchers is the first to uncover the chemical composition and structure of a microelectronics element that is vital to producing ever smaller - and, thus, cheaper and faster - devices. http://www.physorg.com/news173985674.html Physics Mon, 05 Oct 2009 19:00:02 EST news173985674 Scientists in the United Kingdom are reporting an advance toward overcoming one of the key challenges in nanotechnology: Getting molecules to move quickly in a desired direction without help from outside forces. Their achievement has broad implications, the scientists say, raising the possibility of coaxing cells to move and grow in specific directions to treat diseases. http://www.physorg.com/news173526797.html Nanotechnology Wed, 30 Sep 2009 10:53:53 EST news173526797 A new study using brain imaging to study teen behavior indicates that adolescents who engage in dangerous activities have frontal white matter tracts that are more adult in form than their more conservative peers. http://www.physorg.com/news170494620.html Medicine & Health Wed, 26 Aug 2009 09:00:02 EST news170494620 Concussions, whether from an accident, sporting event, or combat, can lead to permanent loss of higher level mental processes. Scientists have debated for centuries whether concussions involve structural damage to brain tissue or whether physiological changes that merely impair the way brain cells function, explain this loss. Now, for the first time, researchers at Albert Einstein College of Medicine of Yeshiva University have linked areas of brain injury to specific altered mental processes caused by concussions. http://www.physorg.com/news170331403.html Medicine & Health Mon, 24 Aug 2009 11:17:27 EST news170331403 Nerve fibers that link perception and motor regions of the brain are disconnected in tone-deaf people, according to new research in the August 19 issue of The Journal of Neuroscience. Experts estimate that at least 10 percent of the population may be tone deaf - unable to sing in tune. The new finding identifies a particular brain circuit that appears to be absent in these individuals. http://www.physorg.com/news169836779.html Medicine & Health Tue, 18 Aug 2009 18:10:12 EST news169836779 Specific changes in brain pathways may counteract genetic mutations for the movement disorder dystonia, according to new research in the August 5 issue of The Journal of Neuroscience. Few people who inherit dystonia genes display symptoms -- namely sustained muscle contractions and involuntary gestures -- and the study provides a possible explanation. This result could lead to new treatments for the estimated 500,000 North Americans diagnosed with dystonia. http://www.physorg.com/news168626650.html Medicine & Health Tue, 04 Aug 2009 18:00:02 EST news168626650 A rare, deadly developmental disorder of the lungs called alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) that usually kills the infants born with it within the first month of life results from deletions or mutations in the FOXF1 transcription factor gene, said a consortium of researchers led by Baylor College of Medicine in a report that appears in the American Journal of Human Genetics. http://www.physorg.com/news163341976.html Medicine & Health Thu, 04 Jun 2009 13:46:48 EST news163341976 Researchers from Brown University and other institutions have developed a computational computer model of how brain tumors grow and evolve. http://www.physorg.com/news161871285.html Medicine & Health Mon, 18 May 2009 13:15:24 EST news161871285 Lighting consumes one-fifth of the electricity generated in the United States. Solid-state lighting offers tremendous potential to improve the situation - once major research challenges are overcome. http://www.physorg.com/news156953162.html Chemistry Sun, 22 Mar 2009 15:11:05 EST news156953162 (PhysOrg.com) -- A new study answers a key question at the very heart of nanotechnology: Why are nanorods so small? http://www.physorg.com/news156683298.html Nanotechnology Thu, 19 Mar 2009 12:09:38 EST news156683298 (PhysOrg.com) -- In an international alliance with funding from NanoNed, the Dutch national research programme, researchers at the University of Twente, the Netherlands, have succeeded in filming the spread of medicine from a pill in real time. http://www.physorg.com/news156178285.html Chemistry Fri, 13 Mar 2009 15:51:55 EST news156178285 One of the most pernicious aspects of multiple sclerosis (MS) - its sheer unpredictability - may finally be starting to yield to advanced medical imaging techniques. http://www.physorg.com/news148672324.html Medicine & Health Tue, 16 Dec 2008 17:52:04 EST news148672324 (PhysOrg.com) -- Metal alloys can fail unexpectedly in a wide range of applications -- from jet engines to satellites to cell phones -and new research from the University of Michigan helps to explain why. http://www.physorg.com/news141485965.html Physics Wed, 24 Sep 2008 14:39:25 EST news141485965