Researchers find structure of enzyme that catalyzes 78-million-year reaction
...rystal structure, combined with other information, reveals that the enzyme OMP decarboxylase operates by a disarmingly simple and unprecedented mechanism," Wolfenden said. "We were imagining something more elaborate, but what we found was elegant simplicity." All enzymes work in the body at similar rates an...... conducted in 1997 and 1995. The current analysis reveals that scientific researchers and experts were the most frequently quoted sources in food news reporting. According to Dr. Sharon Friedman, Iacocca professor and director of the Science and Environment Writing Program of Lehigh University, "The media'...Co-existing illnesses, high cholesterol add to suicide risk
...urden terminally ill patients." Although the study reveals a majority of forensic psychiatrists support legalization of assistedsuicide, survey respondents regard it as a rare and extraordinary procedure. Those respondents thatobjected to legalized physician-assisted suicide believed suicide itself was unacc...Renowned author, scientist and professor, John L. Casti, returns to IIASA
...ly acclaimed predecessor, Five Golden Rules, Casti reveals the remarkable origins of some of the most monumental mathematical discoveries of the last century and sheds light on how these revolutionary ideas have reshaped our lives. In Paradigms Regained, a sequel to Paradigms Lost, gives a layman's account ...Nature's path leads scientists to new antibiotic strategy
...an, an author of the new study. Moreover, the work reveals the potential of using nature as a guide to build medically important synthetic molecules that can outperform their naturally-occurring counterparts. "Nearly all antimicrobial agents now used in clinical settings are naturally-occurring molecule...Medical imaging shows dinosaur heart more like bird's or mammal's than reptile's
... scan of the chest cavity of a new dinosaur fossil reveals a heart more closely resembling a bird or mammal organ, rather than a modern reptile's. This discovery, which suggests that the dinosaur was warm-blooded, with a relatively high metabolism, is reported in the 21 April issue of Science . When Michael...Mountains of variables: The effect of landscape features on atmospheric deposition
... mountains. But a new study published this month reveals that these current methods of measurement may be inadequate. The researchers, writing in the journal Ecological Applications (Volume 10, No. 2), say that estimates of atmospheric deposition need to take into account the complex landscapes of mountai...UNC-CH researchers to study social effects of N.C. hurricane
...ken for granted, the flooding crisis paradoxically reveals much of a given individual's place in a community and much about the fabric of a given life," said Dr. Joseph Mosnier, associate director of the oral history program. "The flood serves as a point of entry for a wider inquiry into the evolving charact...Fewer calories linked to healthier brains in old age
...mall DNA-laden plate that, when read with a laser, reveals activity levels for thousands of individual genes at once. The technique can show which genes are in play in a given circumstance. The more than 6,000 genes surveyed for the new Wisconsin study represent 5 percent to 20 percent of the mouse genome. T...What makes cells tick detailed by Dartmouth researchers
...or in both light and dark phases. The DMS research reveals more dexterity than once thought. FRQ has dual functions, blocking some products while promoting synthesis of others, depending on the white collar protein signals. "What we thought was a negative is actually positive as well," says Dunlap. In ad...... barley. This preliminary look at the rice genome reveals the enormous promise of the rice project as the first step towards sequencing the globally vital cereal plants....Researchers find key to tuberculosis persistence in the body
...s in theAugust issue of Nature Structural Biology, reveals the three-dimensionalstructure of ICL. The work was led by structural biologist JamesSacchettini, whose group also determined the structure of ICL in complexwith specific inhibitory molecules that blocked the ability of the bacteriato use fatty acids...Research shows radiologists will need different programs for digital mammography to work best
...ifferent tasks." An image processing program that reveals calcifications in the breast will be different from one that helps doctors evaluate those calcifications once they've been found, she said. The same holds true for cancerous breast tumors. A report on the latest research appears in the September iss...MIT tool impacts multi-billion dollar drug
...e tools, the new sequence stands. The new sequence reveals that the heparin fragment produced by this particular technique contains only a partial active site, or area key to anticoagulation activity. And that, in turn, affects drug activity. The second PNAS paper proves this. WIDER IMPLICATIONS The work ha...Researchers discover new oceanic bacterial photopigment that converts light into biochemical energy
...xonomically widespread than previously thought and reveals a new type of light-driven energy generation in an abundant oceanic microbial group. For nanotechnology development, this research has generated interest in the potential for new applications in the area of light-actuated molecular switches....Snapping shrimp drown out sonar with bubble-popping trick, described in Science
...rnational journal Science , a team of researchers reveals the surprising trick behind these creatures' noisemaking. Snapping shrimp have one normal claw and one large snapper claw that can be up to half its body size, making the shrimp look like it's wearing an overgrown boxing glove. The claw stays cocked...November GEOLOGY and GSA TODAY highlights
...vities. Confocal microscopy of fluid inclusions reveals fluid-pressure histories of sediments and an unexpected origin of gas condensate. Andrew C. Aplin et al. In the search for oil, determining how the pressure and composition of oil has changed through time is critical. The information we need to cra...Study sheds new light on how the 'mind's eye' works
...sence of actually looking at the image. Our study reveals that the same brain cells that fire when a person looks at a picture of the Mona Lisa are, in fact, the same neurons that excite when that person is asked to imagine the Mona Lisa." To investigate neuronal activity related to encoding and retrieval ......nicate a key signal to one another. The discovery reveals a mechanism critical for supporting brain development, learning and memory and a possible target for treating mental retardation and nerve damage following stroke and spinal cord injury. The finding, reported in the November 17 issue of Science, i...New research aims to help rowers take the strain off their backs
...researchers also show that their technique clearly reveals how good and bad rowers differ in their spinal movements during the rowing stroke. Dr Anthony Bull, Lecturer in the Department of Biological and Medical Systems and member of the BioDynamics Group, said Rowing is one of the most physically demanding ...