Scientists track phosphate to better understand global warming
...ratures. But when a phosphorus-containing compound finds itself in a biological environment, such as a cell, enzymes easily mediate breakage of that bond, and the oxygen isotopes in the phosphate exchange with the oxygen in the surrounding water. This exchange is temperature dependent. That means scientist......"The only way we could safely begin chipping these finds apart was by knowing exactly where the pieces were joined and what lay within." Dr. Michael Walker, a radiologist and professor at the College of Veterinary Medicine, offered an analysis of CT scans from the two artifact conglomerates, held together ...Hessian fly genomics research will benefit wheat farmers, others
...ify resistant wheat varieties, the fly mutates and finds a way around the plants defenses. But the fly's genetic tricks may be its undoing because Purdue University entomologist Jeff Stuart plans to use that genetic information against it to prevent future outbreaks of the pest. Major infestations of the H...Scientist searches Yellowstone Park for carbon dioxide-eating microbe
... the microbial community, she said. When Cooksey finds some likely candidates, he'll isolate them and des...excess carbon dioxide. One approach, which Cooksey finds troubling, is injecting it into oceans. He'd rather hire a microbe from Yellowstone, born and breed...Cancer-linked BRCA2 gene plays previously unsuspected role in cell division
...repair and cell cycle progression. Evolution often finds a way to use these complexes as tools for more than one task, like an Allen wrench or a Swiss Army knife." To establish that BRCA2 and BRAF35 are important in cell cycle progression, the scientists sought first to synchronize the replication cycle in...Genetic map of all plants, animals is goal of genomics
...his similarity "genetic conservation." Once nature finds something that works, it sticks with it, even if the organisms are strikingly different. Twenty or 30 percent of the genes in a human may be the same as those in a single-celled organism such as E. Coli or an amoebae because these genes are necessary...Brookhaven scientists determine key Lyme disease protein structure
...e antibodies with its blood-meal. If the bacterium finds its way into the host, it changes into several other forms for which the vaccine offers no protection. In contrast, an OspC-based vaccine would enable the host to make antibodies to kill the Lyme disease bacteria within the hosts body. Another me...Darwinian evolution of reproductive proteins in mammals
...with proteinaceous chemical signals on its surface finds an egg. Then other proteins on the surface of the ...ogy and Genetics: "If a sperm of the right species finds an egg, proteins on the egg's surface let the sperm bind, penetrate and begin fertilization. What is...... enter the blood system. When a complement protein finds something it does not recognize, it attaches itself to the invader, summoning the full wrath of the immune system, which attempts to destroy the invader. Complement is not a simple sequence of reactions either, but a series of interlocking cascades, ...... to protect women from osteoarthritis of the knee, finds a study in the Annals of the Rheumatic Diseases. Osteoarthritis is the most common type of arthritis. It most often occurs in hip and knee joints, where loss of the tissue which prevents joint frictioncartilageexposes the bone underneath. Osteoarthri......scientists will describe recent significant fossil finds in the Raleigh, N.C./Danville, VA area. The Triass..., 919-932-5341; et al. One of the most spectacular finds mentioned above was the skeleton of an extinct terrestrial cousin of the crocodile. This top predato...Eating less may protect nerve cells
...e donuts may preserve your brainpower. A new study finds that cutting calories by about a third protects nerve cells from damage caused by interrupted blood flow. Blocking blood flow to the eye, in rats, mimicked the shortage of blood in the brain that causes the most common type of stroke. "Whether an o...Gulf war veterans report more ill health than other service men and women
... report ill health as other service men and women, finds research in Occupational and Environmental Medicine. And the numbers of inoculations and days spent handling pesticides were linked to specific symptoms. Seven years after the war, over 14,000 service men and women, almost 5,000 of whom had not been...Effective acne treatments remain elusive, Hopkins researchers find
...rk best, a team at Johns Hopkins Children's Center finds after combing the scientific literature. "One of the key questions for dermatologists has been, How should we be treating acne in any given case?'" says pediatrician and medical informatics specialist Harold Lehmann, M.D., Ph.D. "Here we are in the ...Krauss book explores universe from oxygen atom's perspective
...s blown into space after a supernova explosion and finds its way to a comet. That comet seeds another plane...the Milky Way galaxy for eons before it once again finds itself swept up in an evolving star, merging with other partners, all of which have had their own ad...Penn paleontologists locate a new genus of colossal dinosaur along an ancient coastline
...d all but ignored since World War II, when earlier finds stored in German museums were blasted from existence by Allied warplanes. In the June 1 issue of Science, the Penn team reports on its discovery of Paralititan stromeri, one of the most massive animals ever to walk the earth, and presents evidence t...DNA evidence calls Irish potato famine theory into question
...ished in the June 7 issue of the journal Nature , finds that the strain of the pathogen blamed for the famine isn't the culprit after all. DNA fingerprinting analysis of 150-year-old leaves, preserved from the Irish potato famine, found no trace of the widely suspected 1b haplotype (strain) of the late...Plant/pathogen evolutionary dynamic defies simple arms race model
... no time a flourishing garden wilts as the disease finds a way around the plant's defense. The battle between plants and disease-causing pathogens has been compared to an arms race--with each new defense calling forth a new offensive weapon, and neither gaining the upper hand for long. Like the Red Queen i...Microbiologists find a new source of nitrogen fixation
...tion. "When one looks in unusual places, one often finds interesting things going on," he said.......they lived. I'm really looking forward to further finds by White and his colleagues." White has received close to $1.2 million in NSF funding for his work since 1995. The age of these newly found fossils was determined by the Berkeley Geochronology Center by employing an argon-argon laser heating method ...