3-D structure of human transcription factor proteins revealed
...t the size of TFIID, coupled with the difficulties posed in trying to crystallize all of the TF proteins together has so far precluded the use of x-ray diffraction for imaging the entire complex. Consequently, until now, the overall shape and relative position of the components within the complex were a m...Expect rapid, pervasive innovation in 21st century
...e of technologicalchallenges and potential hazards posed by pure hydrogen, early fuel-cell cars probably will draw theirhydrogen from gasoline or some other hydrocarbon fuel. An on-board chemical plant will break down thefuel into its fundamental components, which include hydrogen. In coming decades, fuel...Giant plant-eating dinosaur found; two cast skeletons to be unveiled
...g to a height of more than 30 feet, and a juvenile posed in mid stride have been constructed. Toiling in temperatures exceeding 120, Sereno's team excavated tons of bone and rock on a 1997 expedition and then spent two years cleaning and studying the bones. "With 95 percent of its skeleton preserved, the...Woman pregnant after selecting healthy embryo
... own family health history and discusses the risks posed to their offspring. Once the couple has met all the criteria, eggs are harvested and fertilized, then embryos are biopsied at three days development to check for genetic abnormalities. Only those embryos that are conclusively healthy for the tested c......d global warming will significantlyalter the risks posed by many pollutants--making the effects of some worse andsome less harmful," said Lewis. "Without knowing how chiral pollutants will beaffected, environmental measures aimed at reducing the effects of pollution arebeing formulated virtually in the dar...Futurist research highlights chemists' national meeting March 26-30 in San Francisco
... Disruptors - New questions on the potential risks posed by pharmaceuticals and personal-care products. Drug delivery techniques - new research on effective ways to deliver drugs within the body. New Prospects in Anticancer Agents in the 21st century Other ACS meetings in 2000 are: ...Suggested changes in federal report on carcinogens to be aired Oct. 21 and 22 at public meeting
...for Sept. 15 and canceled due toweather conditions posed by Hurricane Floyd has been re-scheduled. TheNational Toxicology meeting will hold a public meeting, Oct. 21 and 22 todiscuss suggestions for revising the government's process of declaringsubstances as known or reasonably anticipated to be cause...Asthma-linked genes discovered at Berkeley lab
...ately determine an individual's susceptibility, it posed a majorchallenge to the traditional approach to genetic research which was used toidentify single genes responsible for disorders such as cystic fibrosis andsickle cell disease. Says Rubin, "The approach we used to pursue asthma genes may now be ap...Experts take aim at Montezuma's revenge at conference organized by UM school of medicine
...ylori and stomach cancer. "The stomach cancer risk posed by the Helicobacter pylori bacteria is similar tothe lung cancer risk posed by smoking," says Dr. Mobley, an expert inHelicobacter. He says for these reasons, it is very impor......ing theory about how we learn andremember, an idea posed in 1949 by Donald O. Hebb that had been central tomemory research. The finding also shows that genetic improvement of intelligence and memory inmammals is now feasible, thus offering a striking example of how genetictechnology may affect mankind and...Ice-covered antarctic lake may harbor unknown life
...meeting also will assess the risk of contamination posed byvarious exploration techniques and will consider a schedule for accomplishingthe scientific goal of exploring the lake.......ion in copyingfidelity occurred. The umuC protein posed such extraordinary technical problemsof purification that one researcher, comparing the research challenge to slopesreserved for expert skiers, called it the "black diamond of DNA biochemistry." In the latest experiment, however, Goodman and his coll...Congress briefs: International congress on ecosystem health
...terinary Medicine, will discuss the health threats posed by the use of animalmanure as fertilizer in vegetable crop production. Animal manure can be thehost for such disease-causing agents as the potentially fatal E. coli 0157:H7,Salmonella and Cryptosporidium parvum. People working in vegetable-growingf...CWRU physicists invent "supershielding" for MRI devices
...hielding have not kept pace. Two years ago, Picker posed a shielding question to Brown and his research group at CWRU. Morich and Petropoulosformulated the specific problem. In response, the CWRU researchers came up with a surprising theoretical solution. Brown explains that a shielding coil is used again,......since Rachel Carson warned the nation of the risks posed by environmental contaminants, a large range of nutrients and other contaminants continue to enter our waterways, said Mark Schaefer, deputy assistant secretary for water and science at the Interior Department, in commenting on the report. "Th...Stanford launches interdisciplinary initiative in the biological sciences
...approach is needed today to address the challenges posed by recent progress inthe biological sciences. The solution, they say, just might be Bio-X. "Bio-X is an initiative to continue Stanford University's strong traditions topromote interdisciplinary interactions, -the new Bio-X web page reads cmgm.stanfo...Successful 'Green' Solvent Found For Problematic Chemicals
...f the ionic liquid in pure form." This has posed a problem in certain cases. Water soluable compounds canbe extracted with water, and distillation can be used to remove chemicals withhigh vapor pressures. "But you would need very high temperatures to distilllarger compounds that have low vapor pre...ASM Calls For Focus On Microbial Pollution Of Nation's Water Supply
...ical pollutantsovershadowing the significant risks posed by microbes. The Centers for Disease Control and Prevention estimates that each year in theUnited States up to 900,000 cases of illness and possibly 900 deaths occur as aresult of waterborne microbial infections. Though the science of microbiologyha...New Biomaterial May Replace Arteries, Knee Cartilage
...eering and medicine,took this clinical problem and posed it as an engineering problem, he explained.Hoping to find a new biomaterial, Ku contacted other university researchers, butno one could produce enough to implant. So Ku turned to his own laboratory atGeorgia Tech to formulate a new material, one very...Scientists Finger A Molecular Kingpin In Body's Response To Cigarettes
...preventgenetic damage from the biochemical assault posed by smoking. The team at the University's Environmental Health ScienceCenter cautions that researchers must perform longer-term, largerstudies and check in additional ways for evidence of gene damageto understand precisely how cigarette smoke dam...