All ecosystems are equally productive under drought conditions
... The finding indicates there's an upper limit to ecosystems' productivity, said Travis E. Huxman, a plant physiological ecologist at the University of Arizona in Tucson. He and a team of researchers calculated the upper limit, which they call RUEmax (maximum rain-use efficiency). Life d...Strengthening independent junior research groups in collaborative research centres
... procedure has been streamlined and the strict age limit of 35 has been abolished, since it does not do justice to all disciplinary cultures and routes of qualification. Instead, researchers are expected to complete their doctorate in a short amount of time and have appropriate postdoctoral or professional...Thimerosal, found in childhood vaccines, can increase the risk of autism-like damage in mice
...omote discovery of effective interventions for and limit exposure in a specific population, stated the lead author Dr. Mady Hornig. Because the developing brain can be exposed to toxins that are long gone by the time symptoms appear, clues gathered in these animal models can then be evaluated through prosp...Antibiotics alter GI tract microbes and increase lung sensitivity to allergens
...ols, which are found in fruits and vegetables, can limit fungal growth and that a diet high in saturated fats and sugars slows the recovery of normal gut microflora," Huffnagle adds. "The Mediterranean diet is rich in sources of polyphenols, so it's intriguing that Mediterranean-diet countries have lower r...Gene at root of urban air pollution's lung effects
... Environmental Protection Agency recommends people limit outdoor activity -- also led to the hyper-responsiveness or twitching of the lungs characteristic of asthma only in animals with a working copy of the innate immunity gene. Mice lacking a functional copy of TLR4 continued to suffer lung injury in res...Indoor mold, building dampness linked to respiratory problems and require better prevention
... It calls for studies that compare various ways to limit moisture or eliminate mold and to evaluate whether the interventions improve occupants' health. The study was sponsored by the Centers for Disease Control and Prevention. The Institute of Medicine is a private, nonprofit institution that provides ...Immune system failure to limit the spread of a bacterial infection results in sepsis: a loss of control on the normal inflammatory response, leading to tissue damage, increased vascular permeability, and finally multi-organ failure and shock. The death rate for sepsis patients is...JCI table of contents, 17 May 2004
...ll-free Road from Sepsis Immune system failure to limit the spread of a bacterial infection results in sepsis: a loss of control on the normal inflammatory response, leading to tissue damage, increased vascular permeability, and finally multi-organ failure and shock. The death rate for sepsis patients is...Sediments in many Central Valley streams contain toxic levels of pyrethroid pesticides
... health, we have to consider the sediments and not limit our sampling just to the water above," said Weston. "While pyrethroids may be preferable to the organophosphates that preceded them, our work shows that the environmental effects of pyrethroids can not be ignored and have had too little study for too...Fishing kills Fijian coral reefs
...exploitation of the predatory fishes that normally limit its numbers. The impacts of the starfish are dramatic, with previously pristine coral reefs being turned into dull algal mats. Worryingly, Dulvy, Freckleton and Polunin - the authors of a study in the May issue of Ecology Letters -- found that light ...Teachers turn to Tolkein to explain physics
...reat to European journals Beating the diffraction limit Tales from the transneptunian sea Atoms and light get intimate Lasers feel the Z pinch Dark energy: the latest findings...BioTime awarded NIH grant to aid Hetacool development
...s between 15o and 25oC. However, current products limit the degree to which surgeons can lower a patient's temperature and the amount of time the patient can be maintained at a low body temperature. As a result, surgeons face severe time constraints in performing surgical procedures requiring blood flow i...ORNL's nanobiosensor technology gives new access to living cells molecular processes
... damaged, it kills itself. This is nature's way to limit and stop propagation of many diseases such as cancer," said Vo-Dinh. "For the first time we've seen apoptosis occur within a single living cell." Apoptosis triggers a host of tell-tale enzyme called caspases. Vo-Dinh's team introduced a light-activa...NCAR aircraft, ground instruments to track carbon dioxide uptake
...tree growth. International pressure is mounting to limit carbon emissions because of their role in global climate change. Better understanding of natural processes involved in forest-air carbon exchange may lead to more accurate monitoring methods and new ways to enhance carbon uptake. High carbon-emitting...More useful plants may sprout from gene role discovery
...k. "You could feed a cow more, but even that has a limit because it will only eat so much," Chapple said. "Or you could make what the cow eats more energy-rich by improving the digestibility." The other researchers involved in this study were: Ramesh Nair, now with Pioneer Hi-Bred International; Kristen Ba...Keck Futures Initiative announces grant recipients
...by the positive feedback loop, along with a stable limit cycle due to both feedback loops. Dunlap and his colleagues will test this model in the genetically, biochemically, and molecularly tractable Neurospora system in which FRQ acts as the essential negative element in the circadian feedback loop. J...Understanding nutrition labels can lead to healthier eating
...ls can be thought of in two parts: what you should limit (total fat, saturated fat, cholesterol, sodium, an...more attention has been paid to what people should limit rather than the nutrients needed. The average consumer doesn't know, for instance, how much vitamin ...Oil exploitation in Ecuador's Amazon basin produces a 'public health emergency'
...carbon concentrations were more than 100 times the limit permitted under European Community regulations. E...ironmental damage that has already occurred and to limit further destruction. In addition, the government should acknowledge the need for health impact asses...Biosensor-regulated gene therapy reduces heart attack damage in mice
...ering such a therapy after a first heart attack to limit initial damage and prevent future attacks. While much work remains to test and refine such a therapy, Dr. Phillips said, this new concept might eventually be an alternative to stents and bypass surgery. People who suffer one heart attack are at highe....... She also developed a method of recording forming limit diagrams, which make it possible to estimate the forming properties of sheet metals. This work has been important in assessing the behaviour of metallic materials and holds great potential for the automotive industry in particular. Marion Merklein gr...