Duke Researchers Discover Central Role Of Nitric Oxide In Hemoglobin Action
...e, Stamler said. How can blood vessels maintain a constant pressurewhen the hemoglobin that flows through the...at process has to happen with open vesselsand in a constant pressure. So as the hemoglobin complex inevitably devoursthe free NO gas that endothelial cells pr...Core Spins Faster Than Earth, Scientists Find
...y through theouter core. The latter waves remained constant over the 28-yearspan, but those that traversed the inner core arrived slightlybut steadily sooner over the three decades, they found. Dr.Song and Dr. Richards calculated that over a year, the inner corerotates about one longitudinal degree more than......able to provide the detailed analysis required for constant monitoring of both car emissions and air quality in the driver's cabin. Dr Julian Gardner in the University of Warwick's Department of Engineering will co-ordinate the Europe wide research consortium including: the FIAT motor company's main researc...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
...yR transcription factor. In human cells, constant vigilance against excess oxygen and NO takes atoll over time. When the system is out of balance, perhaps when a transcriptionfactor is mutated, disease can result, the scientists say. "It is a parallel process to what is known as oxidative ...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
...yR transcription factor. In human cells, constant vigilance against excess oxygen and NO takes atoll over time. When the system is out of balance, perhaps when a transcriptionfactor is mutated, disease can result, the scientists say. "It is a parallel process to what is known as oxidative ...Animal Studies Indicate Aging Brain Responsive To Estrogen
...n an interview. "Givingaging females estrogen in a constant fashion was no better for their brainthan giving no estrogen at all. "We're not yet sure whether this is also true in males, and one ofour next steps is to determine if neurons in aged males are responsive toestrogens as well. They may or may not be...A Drug Pump On A Computer Chip
...as begun with a pump and a flow sensor to ensure a constant pumping rate. An insulin sensor would have to be added later. Huffs prototype consists of a rectangular silicon chamber with one of the outer walls made of two thin layers of a titanium-nickel alloy sandwiched around a layer of silicon. The allo...New understanding of crab populations may not bring fishermen's delight
...ng equilibrium. The natural stateof populations is constant change." The model not only provides a good match...e north. "This model says the population would be constant if it wasn't constantlyperturbed by environmental changes from year to year," Botsford says."It poin...Low Iron Levels Cause Weakness In Women Who Are Not Anemic
...ores of the women without supplementation remained constant while that of the supplemented group improved even though these women were not anemic. Further, the supplemented group was about 5 percent more efficient in their use of energy to perform the same amount of work. "Only one woman became anemic during...Resistance To Leptin Contributes To Obesity
...at tissue. For example, during ICV infusion, at a constant rate of 8nanograms (ng) per hour, lean mice lost 15 percent of their body weight,yet this dose had no effect when given to other lean mice by thesubcutaneous injection. "The difference between the increased potency of leptin in leanmice recei...Oaks' Defenses Help Gypsy Moth Caterpillar Fend Off Virus
...work in controlling the caterpillars. The constant sound of chewing at the height of a gypsy moth infestationis more than just annoying. Besides damaging the leaf canopy of northeasternforests, these voracious eaters cost the hard woods industry millions ofdollars. Luckily, from an economic point of ...UF Researchers Investigate Phenomenon Of Seizure-Alert Dogs
... "Furthermore, similar to guide dogs who serve as constant companions to visually-impaired people, early-alert dogs could allow people who are presently homebound the potential to expand their ability to care for themselves, and in some cases, to obtain employment," Reep said. Working with a $3......nly one variable while keeping all other variables constant so thatvalid conclusions can be drawn. Then, through a series of questions to elicitchildren's explanations of their own experimental designs, Klahr and Chen areable not only to determine how kids think an experiment will play out but alsoto discover...3-D Structure of Human Tumor-Suppressor Protein Produced
...ibility,” said Tsai, “the moleculewas in constant motion, making it difficult to make the measurements weneeded to establish the structure.” Tsai and his research team are continuing their research on the p16 protein. “We now know the structure of the p16 protein alone,” saidTsai. &...Carbon In Boreal Forests: Temporary Or Permanent?
...l and human-induced, maintainforests in a state of constant disequilibrium. Scientists from the Canadian Forest Services are studying the variations overtime of the carbon storage capabilities of Canada's forests, which representroughly 10% of the world's forested areas. Their methods rely on inventories o...Environmental Impact Of Antifouling Paints And Tributyltin Regulations
...et of ships uses a TBT paint system, and thereis a constant but very low release of TBT from the ship hulls. TheInternational Maritime Organization has ongoing discussions about the harmfuleffects of the TBT paints, but the search to develop alternative systems toTBT-based paints for ships hulls which are eq..."A Thousand (And More) Points Of Light" Yield New View Into Cells
...ound that the transcription iscyclical despite the constant presence of a stimulating signal."To ouramazement,we found that transcription hits its peak in 30 minutes. By 60 minutestranscriptionfalls off, and two hours later, it's gone." This indicates the existence of anas-yet-unknown regulatory feedback mec...Gene Study Shows Mammals Lived Before Extinction Of The Dinosaurs
... species to find those that develop mutations at a constant rate overtime, which Kumar and Hedges used like the ticking of a molecular clock to tracethe history of each species back to its origin. Hedges says that, in contrast to the use of gene sequences, the use of fossilsto estimate when two species emer...Composting Livestock Waste Provides Benefits
...le to do it, it was hard on the equipment, and the constant driving across the fields was causing soil compaction. "We've gone from spreading manure on a daily basis to spreading compost five or six days a year." Composting is also safer for the environment than stockpiling manure, according to Hawkins. "Stoc...Tiny Jamaican Tree Crab Made Big And Fast Evolutionary Leap, Scientists Discover
...n the study have accumulated mutations at a fairly constant raterelative to one another during their evolution, so the researchers could use thechanges like the ticking of a molecular clock to trace the history of eachspecies back to its origin. "The clock-like mutations in the gene sequencesstart ticking aw...