Biochemists Gain Crystal-Clear Insight into 'Ancient' Enzyme
...ere the amino acids are chemically attached to one another in long stringlikemolecules that fold into the cel... molecule.Similarly, ribonuclease P helps activate another RNA, called ribosomal RNA,that is central to the cell's protein-making machinery. In their experime...Remarkable Skull Of Predatory Dinosaur Unearthed On Madagascar
... "The specimens of Majungatholus represent another in a series ofremarkable discoveries by this research team," said Christopher Maples, directorof NSF's geology and paleontology program, which funded the research. "The Cretaceous period in Madagascar has rapidly become among the most importantfossi...Researchers Unable To Document Existence Of Transient HIV Infection In Infants
...es. In addition to the mother and child, theyfound another 41 cases of suspected transient HIV infection amon...ntaminatedwith HIV-1 in the laboratory. In another six cases, they found there was a mix-up in the specimens,since the infant's human gene markers did ...Clusters, Computers And The Human Brain
...different animals and the two different cars. In another task, the algorithm was asked to analyze the sounds of the alphabet as pronounced by 300 people, with the sound of every person's voice represented as a combination of more than 600 acoustic parameters. Without being given any instructions other than...ASU Scientists Join NASA Astrobiology Institute
...er for Early Events inPhotosynthesis, will explore another important aspect of early biosphereevolution by looking at the origin and evolution of the first photosyntheticsystems. Oxygen-producing photosynthesis marked critical step in the evolutionof the Earth's atmosphere, climate and life, and this work ha...COGA Suggests Genetic Loci For P3 Brain Wave Abnormality
...e been abstinent for as long as 10 years. In 1991, another research team related low P3 amplitude to number of alcoholic first-degree relatives rather than personal drinking history. Such indications that low P3 amplitudes predate heavy drinking and might be inherited led COGA investigators at all sites to e...Killing Fields: A Bacterial Pesticide May Threaten Human Life
...hority, is also reviewing a similar application by another company, Agrium ofCalgary, Alberta. And Jonathan Barry, president of Good Bugs, told New Scientisthe was confident that he could gain permission to test the bacterial spray in Britain. Barry believes the strain of B. cepacia used by Good Bug...University Of Cincinnati Biologists Find Evidence For Unusual DNA Repair InArchaea
...nemutant might need the amino acid histidine while another requires tryptophan in its diet.Finding these muta...ents found it was very easy to recovermutations in another gene known as pyrF. PyrF mutants require uracil, but Grogan has beenable to use a genetic technique ...Major Risk Factor For Cervical Cancer Found
... the future testing for p53 status may prove to be another useful tool inassessing a woman's risk for developing cervical cancer," commented Dr Storey. The findings also have implications for certain skin cancers which are linked toHPV infection and exposure to ultra-violet radiation. Organ transplant pati...New Treatment Successful With Hepatitis C
... of interferon treatment promptedSmith to look for another drug. Smith's study included 22 patients who wer...nts paid, luckily it was inexpensive." She noted another benefit of amandatine -- it can be taken orally, insteadof by injection, which is the only way to ad...Duke Researchers Finds That Moderate Caffeine Use Boosts Blood Pressure, Potential For Heart Disease
...e incidence of coronary heart disease. In another unrelated study, called the Hypertension Detection andFollow-up Program, researchers reported that reducing blood pressure by fivepoints through medication was associated with a 20 percent reduction in 5-yearmortality, Lane said. "The re...Hopkins Scientists Clock The Speed Of Comprehension
...ond, to begin to understand a pictured object, and another 250 to 450milliseconds to fully comprehend what the object was. He appeared to completethe process more quickly when the object shown was familiar to him, Hart notes. "The data, obtained within a single stage at a single site in the brain,are...Tiny Jamaican Tree Crab Made Big And Fast Evolutionary Leap, Scientists Discover
...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 away as soon as a new species ...Can Contaminated Aquifers Restore Themselves?
...is informationgathered at one site transferable to another contaminated site?Presentations by other scientists, including USGS personnel, will addresssome of these questions. Presentations on USGS studies will addressnatural restoration of ground water contaminated by a crude oil spill inMinnesota, fuels ad......e component but it would be completely absent from another vesicle," Lillard says. "We knew that in a populat...ng to read individual words in cellular mail; it's another problem altogether to translate the language. But simply reading the chemical codes that the vesicle......lood clotting time and partial thromboplastintime, another laboratory test to measure clotting time. Also, there was notoxicity noted in treated animals. Hemophilia B Hemophilia B, the second most common severe genetic bleeding disorder worldwide,is caused by an abnormality or deficiency in the blood clot...Researchers Discover Novel Gene Family Responsible For Pacemaker Activity In Brain And Heart
...red and tells itthat it can't rest, it has to fire another action potential," says Steven Siegelbaum, Ph.D.,professor of pharmacology at Columbia University College of Physicians &Surgeons and a Howard Hughes investigator. He and Eric Kandel, M.D., UniversityProfessor and senior investigator at the Howard Hu...Gene Therapy May Suppress Uterine Fibroids
...genes in the body. Christman estimates it will be another two to three years before they are ready to begin human trials....University Of Pittsburgh Scientist Discovers How A Novel Vitamin K Stops Cancer Cell Growth
...ncer cells. However, Cpd 5 does notinterfere with another group of enzymes called protein tyrosine-kinases, whichadd phosphate groups to these same proteins. The result is an excess of what are calledtyrosine phosphorylated proteins, which trigger a variety of activities withincells. They exert anti-cance...... After a two-dayrest period, the animals received another three doses on the same schedule. Control animals were given saline alone. The investigators looked for evidenceof bacteria in the spleens and lungs of infected mice. The first group of infected mice received high doses of IL-12 alone. These miceha...