CWRU physicists invent "supershielding" for MRI devices
...hort and open outside shield, we could get thesame perfect suppression obtained by an infinite shield," he adds. "We had a zero magnetic field everywhere outside, even inthose regions where there was no secondary coil." Trapping magnetic fields in a closed container presents no problem, but to be able to tra...Astrobiologist to hunt small game in Siberia
...nd deepice are tremendously important due to their perfect state of preservation, withintact cell membranes, organelles, proteins, DNA and RNA. They make possible anentirely new field of research that may be designated molecular paleontology." In Siberia, Hoover is particularly interested in patterned ground...Microbes in basalt thrive on mixed diet of toxic waste
...d withsynchrotrons," says Holman, "but for us it's perfect -- and not only becauseit's nondestructive of organisms. You have an extremely complicated spectrum inthe ten-micrometer region," which is the dimension of the beam. "We identifiedmarkers in this spectral region that tracked the key compounds that un...Experiments illuminate workings of biological clocks
...n cycles,this effect on drug therapy seems to make perfect sense," she said....Learning how organs tell left from right
...side at the internalorgans shows that there is not perfect symmetry throughout the body. The heartand spleen normally reside on the left side and the liver and gallbladder are onthe right. Furthermore, the organs themselves are asymmetrical. Understanding how genes control the shape and spatial orientation ...Testosterone, stress may not suppress immune system after all
...d prevent infection,"Braude explains. "This makes perfect sense from an evolutionary standpoint.Now, today, with people constantly stressed, those immune cells aren'tprotecting your gut from a virus or your lungs from an infection or a cold. So,you might get these illnesses, but the immune cells are out th...Tracing the evolution of sex chromosomes
...--the Xand the Y--stand apart because they have no perfect match. Nevertheless,evolution has charged these two genetic loners with the critical task of sexdetermination: embryos with two X chromosomes develop into females, whileembryos with an X and a Y chromosome develop into males. The rationale behind ...Human genome bears a virus related to HIV-1
...ur genome all these millions of years, and it's in perfect working order," Cullen said. Is HIV, then, descended from a virus that humans have carried for millions of years? "Probably not," Cullen said. "It's much more likely that HERV-K and HIV descended from a common ancestral virus that had Rev-like activi...Scientists discover how to make nanostructures assemble themselves
...ence and Technology. The pillar pattern could be perfect for many applications, says Chou. The first use, he says, is likely to be in accelerating the development of organic light-emitting devices, which are the basis for the next generation of flat-panel displays and other video equipment. LISA would allo......tacking them.There have been some indications that perfect single crystals offer the best bio-compatibility,but these are very difficult to apply to surfaces that are curved, which is generally the casefor implant devices. New self-assembled monolayer films appear to offer significant potentialin this area. ......to escape solar ultraviolet light on Mars is not a perfect strategy. The rock itself emits trace quantities of radiation over time. "Within responsible imagination, no long-dormant lifeform can be expected on the surface of Mars due to combined build up of damage over time caused by both incoming space radi...Human stem cell research leads Science's top ten list of the best scientific advances in 1999
...hs of light. In the near future scientists hope to perfect their manipulations of these crystals and put them to work in high-speed communications networks, powerful lasers, and optical computers. Best Bets for Hot News in Y2K: As in previous years, the Editors of Science have chosen six hot research are......ophy. However, many researchers agree mice are not perfect model systems to investigate human disorders.This need has prompted research into developing a more suitable model for studying human disease inmonkeys. Researchers at OHSU were able to insert DNA material into the monkey eggs by attaching foreignge...Study reveals family secret of how viruses enter cells
..." Rossmann says. "A virus and its receptor must be perfect complements, like a lock and a key, in order for infection to occur." Details of the study are in the Jan. 4 issue of the journal Proceedings of the National Academy of Sciences. Similar results were found by another team of researchers from the ...Molecular repair of ruptured discs
...ractions in disc resorption, and Matrisian had the perfect tools: knockout mice that lacked the MMPs matrilysin and stromelysin. These two MMPs just happened to be the specific ones that Haro had found in herniated disc samples. To study resorption, Haro developed a culture system that mimics what is happ...Road dust: Rural vehicles emit more pollutants than urban ones
...ts are done by sweeping. But to get an absolutely perfect measurement of roadside dust, the study area has to be swept clean with high-performance vacuums. This is next to impossible to do with interstate highways because of the large traffic flow. "We consistently found that the EPA models with generic...Genes pertaining to 'maleness' evolve more rapidly than their non-sexual counterparts
...ng run greater than those derived from rather more perfect adaptation to the conditions of life." Wu and colleagues examined a set of three homologous genes that may directly alter the morphology of sperm in humans, chimpanzees, gorillas and orangutans. When they compared the genes in different humans, t...University of Chicago researchers uncover first steps in cell-cell adhesion process
...the calcium concentration was the formation of two perfect rows of dots, or puncta, along the cell membranes between two adjacent cells," said Vasioukhin. Puncta on adjacent cells lined up perfectly with one another. The researchers named the matched puncta rows the "adhesion zipper." Several hours a...Scientists develop most efficient mouse cloning strategy to date, create transgenic clone
...es under study. Thus they provide researchers the perfect genetic tool to study cloning. Although the Federal government and most scientists believe human cloning to be unethical, experts agree that improving cloning technology could have real benefits in agriculture and animal husbandry, as well as in bio......l world, how do you distinguish between those with perfect sniff pitch and those with none? Cornell University food chemists are finding out by standardizing the spectrum of smell. Jane Friedrich, Cornell doctoral candidate in food chemistry, is developing sniff standards in the laboratory of Terry Acree, ...