Scientists track phosphate to better understand global warming
...(life) and lithosphere (rock). It also attempts to evaluate human impact on the system. Phosphorus is crucial to life as a building block of nucleic acids, proteins and lipids. It is a component of adenosine triphosphate (ATP) and nicotinamid adenosine dinucleotide phosphate (NADP), molecules that transfer ...Why some people just can't seem to pay attention
... switch toward a new event in one's environment to evaluate its potential relevance. It could, for example, be a sign of danger." Alho added that the MMN brain response to the pitch changes was larger in the alcoholics than in the non-alcoholics. "This indicates that the auditory-cortex and/or frontal-cort...Natural selection for lactose tolerance
...vides a second, and more recent, stage at which to evaluate evolution at the lactase locus, and it allowed the researchers to find evidence that milk consumption might have affected the evolution of the lactase gene. Northern Europeans have a long history of fresh milk consumption, and they were the only pop...Changes in Australian ecosystems tied to arrival of exotic animals
...ate their primary diet was bushes and trees. To evaluate changes in vegetation in south-central Australia since European colonization, the team derived proportions of grasses compared to bushes and trees in the diet of emus that laid their eggs between 300 and 14,000 years ago. The team then compared eggs...Avocados contain potent liver protectants
...n Australia, Canada, Japan and New Zealand. To evaluate the protective activity of food against liver injury, the researchers fed 22 different fruits to a group of rats with liver damage caused by galactosamine, a powerful liver toxin. As measured by changes in the levels of specific liver enzymes, the av...UCSF-led study points to pivotal, early event in cancer development
...ese markers, they say, could ultimately be used to evaluate the susceptibility of epithelial cells to becoming cancerous and thus point to cells that could be potential targets for prevention and therapy at a precancerous or early cancerous stage. Cells begin the slide toward the cancerous state when they ...Ovarian stimulation in mice adversely affects embryo development and implantation
...etal development in mice. They used four groups to evaluate the impact of ovarian stimulation on embryo quality and uterine receptivity: * embryos from control donors to control foster mothers * embryos from superovulated donors to control foster mothers * embryos from control donors to superovulated foster ...Fighting breast cancer at the molecular level
...esearchers also hope the tests will enable them to evaluate tissues before and after cancer treatment and compare the results. In this way, they could monitor patients responses to therapy. The tests could also detect patient relapses much earlier. The diagnostic tests the researchers are trying to devel...Moving towards a cure for diabetes
...on and colleagues have developed a model system to evaluate which genes can effectively drive pancreatic development, and would thus be candidates for introduction into therapeutic stem cells. Previous research into pancreas development has utilized knockout mice to determine which genes are necessary for pan...Biosecurity net closes on marine invasions
... in the marine environment. "The intention is to evaluate the risks from potential bio-invasions and then apply all the systems we know of to shrink the mesh and keep out unwanted visitors," he said. Dr Hayes, a marine scientist from the Australian national science agency, CSIRO, was speaking at the annua...Award winners announced for 2001 Merck/AAAS undergraduate science research program
... "The award selections are based on criteria that evaluate the quality and scientific merit of the proposed research program and the quality of the interdisciplinary research model that brings together biology and chemistry," said Susan Painter, Manager, Academic Programs, External Scientific Affairs, Merck...Scientific theory of marine reserves to be released
... except as necessary for monitoring or research to evaluate the effectiveness of the reserve. Marine reserves are sometimes called ecological reserves, fully-protected marine reserves, or no-take areas. They are a special category of Marine Protected Areas (MPAs). MPAs are defined as areas that have been desi...Award winners announced for 2001 Merck/AAAS undergraduate science
... "The award selections are based on criteria that evaluate the quality and scientific merit of the proposed research program and the quality of the interdisciplinary research model that brings together biology and chemistry," said Susan Painter, Manager, Academic Programs, External Scientific Affairs, Merck...Computer model predicts outcome of DNA shuffling
...We used thermodynamics and reaction engineering to evaluate and model this complex reaction network so we can now predict where the DNA from different parent genes will recombine." DNA shuffling uses related genes from different species or genes with related function, fragments them and reassembles then...New tools for health care providers and the public to combat overweight and obesity
...s health care providers the fundamentals needed to evaluate and treat this important health problem and contains information which has not been provided elsewhere in their training," said Dr. Louis J. Aronne, chair of the committee that developed the guide and clinical associate professor of medicine at Weill...Stratospheric balloon constellations for Earth science
...e Corporation developed a simulation capability to evaluate new constellation geometries related to hurricane monitoring and tracking. These new simulations indicate that with minimal balloon path modification, we can track and observe a hurricane. In addition, working with Princeton University, GAC has devel...Human trials of new vaccine technique prove promising for allergy sufferers
... Creticos and his colleagues next plan to evaluate the efficacy of AIC in a classical clinical trial during the upcoming ragweed season. Future studies will also explore the frequency of injections and the actual number of doses of AIC needed to provide protection against ragweed-induced allergic res...LSU veterinarians deliver cloned calves by caesarian section
...the calf closely for the following months and will evaluate her reproductive capabilities to ensure that as a clone she can produce natural offspring as any other cattle would. "Cyagra is continuously working on many other novel procedures and exciting ways to utilize cloning in livestock. I think in a very...In possible boon to sickle cell victims, basic scientists find reason cells stick
...esults in a mouse model of sickle cell disease and evaluate potential blockers there," Brittain said. "We are still years away from taking this into the clinic, but we are one step closer than we were a year ago." About 150 in every 100,000 U.S. black children suffer from sickle cell disease, also known as s......loped for clinical use. The study was designed to evaluate the effectiveness of Ketek in patients with strains of Streptococcus pneumoniae that had reduced susceptibility to penicillin and/or erythromycin. Ketek is currently under review by health authorities in Europe and the U.S. for the treatment of comm...