New NIST reference material for peptide analysis
... constituent peptides (generally with enzymes that cut through them at specific sites), sort the various peptides out using a chemical separation technique like high performance liquid chromatography (HPLC), and then determine the mass of each peptide using mass spectroscopy. One big uncertainty in thi...... loosened from the walls of the lysimeter and then cut into ring segments of the desired size that can be examined one by one in a structurally unaltered state. Lysimeters are used at the GSF to study the effects of global climate change on soil. "But there are many industrial applications for which th...Immune antibodies penetrate neurons to clear Alzheimer's-linked amyloid
...side and between cells." In fact, the antibodies cut down on intracellular amyloid accumulation by about one-third, the researchers found. How might antibodies working inside neurons decrease exterior plaque levels" The researchers still aren't sure, but they have already ruled out some of the most ...Brazil demonstrating that reducing tropical deforestation is key win-win global warming solution
...year 2015. Brazils deforestation rates have been cut nearly in half in recent years through a combination of government intervention and economic trends. "We are encouraging the Brazilian government to fully endorse the Compensated Reduction proposal", states Paulo Moutinho, Scientist and Coordinat...Biodiversity loss linked to economic inequality worldwide
...n forests," says Gonzalez. "When loggers in Mexico cut down trees to make way for cattle ranches, the impact on forests is partly driven by Mexico's highly uneven distribution of wealth." ...Dinosaur hearing, listening to muscle noise, quieter cubicles
...ple step of using quieter pavement materials could cut road noise in half in the main entrance of the Florida Everglades. Blomberg ( npc@nonoise.org ) notes that noise in national parks follows the same consistent pattern associated with other modern noise: the invention of new noise sources, the growth...ACS News Service Weekly PressPac -- May 9, 2007
...enome. The enzyme acts by making a double-stranded cut in DNA, passing another segment of the double helix through the break, and reconnecting the broken strands. The study found that three major classes of bioflavonoids interfere with the enzyme in cells, leading to DNA damage with potential adverse hea...A few more minutes of maternal attachment may reduce anemia in children
...m pregnancies. In 79 cases, the umbilical cord was cut within 20 seconds, and in 72 cases it was clamped two minutes after the infant was expelled. The study found that the partial pressure of oxygen in the umbilical artery of the newborn babies who had late clamping had risen, while there was a lesser...Carnegie Mellon's David Sholl identifies new materials
...is research will help streamline hydrogen storage, cut energy costs and ultimately help hydrogen to replace gasoline....DNA repair proteins monitored at double-strand break
...roken ends. Double-strand breaks are ruptures that cut completely across the twisted, ladder-like structure of DNA, breaking it into two pieces. Using a technique developed specifically for this project, the St. Jude researchers could determine when repair proteins arrived at or around the DNA break a...Case Western Reserve University School of Medicine researchers awarded $27M for TB research
...on over seven years. As individual NIH grants are cut across the nation due to a flat federal NIH budget, the significance of the award and its dollar amount are welcome. The contract will allow researchers to build on a long-standing tradition of multi-disciplinary TB research at the School of Medici...Cooperative science program yields results
...airs of tows were made, but worsening fall weather cut the experiment short. The initial results were positive but not as good as hoped for so Gauvin, Rose and Kodiak fishermen went back to the drawing board. Video from the fall indicated water flow through the excluder was too fast for some halibut t...Common genetic variation is linked to substantial risk for heart attack
...that results when the blood supply to the heart is cut off. It is the leading cause of death in the industrialized world. Nearly half of men and one-third of women who reach the age of 40 will suffer a heart attack in their lifetime. The study led by deCODE Genetics uncovered the first common variant ...Study of damaged gene gives insight into causes of mental illness
...mportance of DISC1. We also found remarkable clear cut differences between the different types of damage to the gene and the treatment that was the most effective. By analysing how the brain changes and develops over time we would hope that this would lead to more effective drugs to treat such illnesses....Estrogen use before 65 linked to reduced risk of Alzheimer's disease
...who use hormone therapy before the age of 65 could cut their risk of developing Alzheimers disease or dementia. This possibility is raised by research that will be presented at the American Academy of Neurologys 59th Annual Meeting in Boston, April 28 May 5, 2007. The study found women who used any f...New clues for treatment of disease that causes accelerated aging
...ortion of lamin A bound to the guide molecule gets cut off at this point, freeing the rest of lamin A to become part of the nearby meshwork where it belongs. In most patients with progeria, though, the spot in lamin A where the guide molecule gets clipped off is erroneously deleted during initial assembl...Hearts of male and female rainbow trout are different
... Uniform ventricle strips or transverse rings were cut from 10-12 month old, hatchery raised, sexually-immature male and female rainbow trout. Each strip was prepared in one of two ways: (1) incubated without stimulation (i.e., ventricle strips were incubated in a respiration cell containing an oxygenate...Tree rings show elevated tungsten coincides with Nevada leukemia cluster
... as is used for decorative metal mailbox flags, to cut away a thin layer all around each pencil-sized tree core. The annual rings then were analyzed for heavy metals. To verify that differences in airborne tungsten could be detected using tree rings, the team tested trees close to and distant from a...Halos and horns: Fixing the 'taste' of diet soda
...r of food chemistry. "Many people know they should cut calories, but they won't drink diet pop because they don't like the taste." Consumers may claim they don't like diet soda because of artificial sweeteners, but Schmidt and sensory scientist Lee think people are also influenced by a subtle differenc...Researcher finds negative effects of colonization on slash-and-burn farming method in western Borneo
...ithout adequate fallow because they had no time to cut new fields, resulting in low yields and soil infertility. Wadley also argued, as have others, that the Iban's traditional swidden farming techniques do not produce such environmental degradation as many believe, since the Iban have farmed the same ...