Promising hospital anti-infection strategy probably won't work, study shows
...y surprised. We expected to find a number of cases where it would work, and it was the exact opposite," said Carl Bergstrom, a University of Washington assistant professor of biology. Instead of cycling, Bergstrom said, hospitals could probably help patients more by prescribing a variety of antibiotics,...Scientist who discovered Sly syndrome finds new research path to explore for treating the disease
...place it on the surface of the blood-brain barrier where it can transport enzyme. Instead the M6PR stays in...anslocation - the process that cells use to decide where they put the proteins they make. "It becomes a molecular biology question. Really, it's a question o...Size does matter when choosing a mate
...tatistical tools. The researchers also found that where there is high competition between males, the difference in the ratio between the sizes of the sexes increases, explaining the changing ratios identified by Rensch. In contrast, in species with low intensity of male-male competition, females tend to b...New hypoxic event found off Oregon coast
...o be shifting the system closer to a tipping point where the right conditions can kick it over the edge and into an hypoxia state. This coastal ecosystem off Oregon seems to be changing in a way we have never seen." Scientific data to document the changing ocean conditions only goes back a few decades at ...Why some animals have smaller eyes: Lifestyle matters
...y because it spends most of its time underground, where things are dark, but where the shrew's senses of smell and touch are more important [than vision] for making a living."Or the c...Revealing bizarre deep-sea secrets
...rue." The explorations will begin at Desoto Canyon where the team will study unexplored deepwater pinnacles...raps are then retrieved and unloaded in a darkroom where Dr. Frank and colleagues can study how their visual systems respond to light. The overall goal will ...... phobia are detailed: the 'non-associative' model, where fear is not based on previous negative experience, but rather on an innate Darwinian concern that spiders are venomous; another model suggests that spider phobia depends on conditioning, modelling, and negative information experiences; the 'disgust s...Increasing international insect threat to stored food
...ill prove to be very useful in international trade where incursions of exotic pests pose considerable risks...earch team. "This is especially true in Australia, where a number of economically important exotic insect pests of stored products continue to be successfull...Carnegie Mellon researchers to demonstrate autonomous robotthat will seek life in Atacama Desert
... Zoë to the Atacama Desert in northern Chile, where it will perform experiments focused on seeking and identifying forms of life. The team will spend nearly two months in the Atacama, described as the most arid region on earth, working on the second phase of a three-year program whose results may ...Fundamental change to Immunology 101
...s why I took on this project, to better understand where T cells actually come from." To figure out...ematopoiesis goes awry. "If you want to understand where T cells come from and what goes wrong when you stop making T cells, we need to know exactly what thi...Physics gravity model applicable to disease spread
...Lewistown, Pa., even though Lewistown is closer to where I live." Borrowing from physics and transportation theory, the researchers are using an empirical gravity model along with the distance-based models to define a network of spatial spread of contagious disease. "We are combining the basic theory of ...Bad news for pathogenic bacteria: Scientists find protein essential for bacterial survival
...queezes through this narrow tunnel toward the site where ppGpp binds to the enzyme. Once here, the protein ...t to the active site, and presents a confined area where many proteins and antibiotics that control transcription may bind to carry out their business." Kn...Transcriptional gene silencing in nucleus shown by UCSD/VA medical researchers
... nucleus and travels to the cytoplasm of the cell, where it works with another cellular component called th...ucleus. This allowed siRNA access to the promoter, where it stopped the first part of the gene-making process called transcription, before it began. Previou...Computer imaging of Archeopteryx skull suggests this dinosaur-bird link could fly
...olution X-ray Computed Tomography (UTCT) facility, where he was able to help determine the bird-brain featu...ts could tell that it had a large midbrain region, where this ear/eye crosstalk would occur, and complex inner ear structures just like birds. However, it ha...Oldest evidence for processing of wild cereals: starch grains from barley, wheat, on grinding stone
...udy the development of agriculture in the tropics, where plant materials are poorly preserved, "explained Piperno. Significant and consistent differences in shape, size, and other features make it possible to distinguish starch grains from different plant species. Evidence associated with an oven-li...Study explains spatial orientation differences between sexes
... says Tremblay, is piloting a plane in a situation where visual cues have been lost. "Because women tend to judge their horizontal a few degrees below what it actually is, they tend to pull up to compensate, thus directing the plane away from the ground." Tremblay says his finding has good potential for ...Depression traced to overactive brain circuit
...a form of glucose, the brain's fuel) which reveals where the brain is active during a particular experimental condition. They randomly gave 27 unmedicated depressed patients-in-remission and 19 controls either pills containing seven essential amino acids, such as lysine and valine, or identical-looking ...Study suggests humans can speed evolution
...es, including introduced salmon, flies and plants, where human disturbance has set the stage for contemporary evolution on scales we've not witnessed before." The fish have evolved into two genetically distinct and differently colored populations, one on the north side of the island, the other on the south...Protein vaccine fully protects mice from lethal aerosol challenge with ricin toxin
... family," Olson explained. "We tried to figure out where the protein molecules are diverging within the family--to see what changes were made by nature so we could make the changes we needed to make." To improve upon its stability--in effect, to make it go against its natural tendencies--Olson and his ......aders in 2001? The hypoxic region is an area where water lacks sufficient oxygen to sustain most marine life, and in the Gulf of Mexico it is caused by excess nitrogen---largely runoff from mid-west agriculture, said Donald Scavia, director of the Michigan Sea Grant College Program and professor in t...