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. In the fruit fly Drosophila, oskar mRNA, which is involved in defining the animal`s body axes, is produced in the nuclei of nurse cells neighbouring the oocyte, and must be transported to the oocyte and along its entire length before being translated into protein. http://www.physorg.com/news178448851.html Biology Thu, 26 Nov 2009 09:20:01 EST news178448851 Toshiba Corporation today announced that it has developed a high resolution photoresist (photo-sensitive film) essential for future application of EUV (extreme ultraviolet) lithography in semiconductor fabrication, and proved its viability with the world's first 20nm-scale generation process technology. http://www.physorg.com/news177697613.html Technology Tue, 17 Nov 2009 16:27:55 EST news177697613 An international group of researchers from Carnegie Mellon University, Goettingen Medical School in Germany and the University of Cambridge in the United Kingdom have received a Human Frontiers Science Program (HFSP) grant to develop molecular probes that will help researchers better understand the "cellular GPS" system that guides neurons to create a properly wired nervous system. http://www.physorg.com/news177078209.html Biology Tue, 10 Nov 2009 13:00:06 EST news177078209 Inflammatory response of brain cells -as indicated by a molecular imaging technique -could tell researchers more about why certain neurologic disorders, such as migraine headaches and psychosis in schizophrenic patients, occur and provide insight into how to best treat them, according to two studies published in the November issue of the Journal of Nuclear Medicine. http://www.physorg.com/news176119933.html Medicine & Health Fri, 30 Oct 2009 11:12:48 EST news176119933 Virginia Commonwealth University Massey Cancer Center and VCU Institute of Molecular Medicine researchers have identified a gene that may play a pivotal role in two processes that are essential for tumor development, growth and progression to metastasis. Scientists hope the finding could lead to an effective therapy to target and inhibit the expression of this gene resulting in inhibition of cancer growth. http://www.physorg.com/news177945339.html Medicine & Health Fri, 20 Nov 2009 13:16:30 EST news177945339 The European mink, Mustela lutreola, is a species catalogued as in danger of extinction, due to the large decline in their population over the past century. It is considered to be one of the most endangered mammals, both locally and internationally. http://www.physorg.com/news176390934.html Biology Mon, 02 Nov 2009 13:50:05 EST news176390934 A theoretical physicist at the National Institute of Standards and Technology has developed a method for calculating the motions and forces of thousands of atoms simultaneously over a wider range of time scales than previously possible. The method overcomes a longstanding timing gap in modeling nanometer-scale materials and many other physical, chemical and biological systems at atomic and molecular levels. http://www.physorg.com/news176555152.html Physics Wed, 04 Nov 2009 11:09:16 EST news176555152 (PhysOrg.com) -- New findings published in Cancer Research, a journal of the American Association for Cancer Research, advance the current understanding of the role of stem/progenitor cells on the initiation and progression of prostate cancer from the Pten null prostate cancer model. http://www.physorg.com/news177261934.html Medicine & Health Thu, 12 Nov 2009 15:40:02 EST news177261934 In a new study, researchers report that a class of heart medications called beta-blockers can have a helpful, or harmful, effect on the heart, depending on their molecular activity. http://www.physorg.com/news177941049.html Medicine & Health Fri, 20 Nov 2009 12:20:04 EST news177941049 (PhysOrg.com) -- Biologists have shown that independent but similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species -- a shrew and a lizard -- giving each a venomous bite. http://www.physorg.com/news176037445.html Biology Thu, 29 Oct 2009 12:18:32 EST news176037445 (PhysOrg.com) -- A new study of mice suggests that stress and trauma in early life can have an impact on the genes and result in behavioral problems later in life. http://www.physorg.com/news177227567.html Medicine & Health Thu, 12 Nov 2009 07:30:02 EST news177227567 (PhysOrg.com) -- In the binding pockets of enzymes their natural binding partners fit exactly. The principle by which many pharmacological agents work also relies on the fact that these substances fit exactly into the pockets of specific enzymes. Not only the chemical properties but also the shape of the pocket determines if a molecule fits or not. http://www.physorg.com/news176020509.html Chemistry Thu, 29 Oct 2009 07:35:59 EST news176020509 Much as adrenaline coursing through our veins drives our body's reactions to stress, the plant hormone abscisic acid (ABA) is behind plants' responses to stressful situations such as drought, but how it does so has been a mystery for years. Scientists at the European Molecular Biology Laboratory (EMBL) in Grenoble, France, and the Consejo Superior de Investigaciones Cientificas (CSIC) in Valencia, Spain discovered that the key lies in the structure of a protein called PYR1 and how it interacts with the hormone. Their study, published online today in Nature, could open up new approaches to increasing crops' resistance to water shortage. http://www.physorg.com/news176993365.html Biology Mon, 09 Nov 2009 13:00:02 EST news176993365 A new study by a team of researchers led by Crislyn D'Souza-Schorey, associate professor of biological sciences at the University of Notre Dame, sheds light on the molecular basis by which tumor cells modulate their surroundings to favor cancer progression. http://www.physorg.com/news176649486.html Medicine & Health Thu, 05 Nov 2009 13:40:04 EST news176649486 Embryonic development is like a well-organised building project, with the embryo's DNA serving as the blueprint from which all construction details are derived. Cells carry out different functions according to a developmental plan, by expressing, i.e. turning on, different combinations of genes. These patterns of gene expression are controlled by transcription factors: molecules which bind to stretches of DNA called cis-regulatory modules (CRMs), and, once bound, switch the relevant genes on or off. http://www.physorg.com/news176574396.html Biology Wed, 04 Nov 2009 16:27:12 EST news176574396