Candidate Regulator Of The Temporal Component Of Neurotransmitter Release Identified
...or further unravelling the molecular mechanisms governing temporal aspects of synaptic communication. In addition, they provide another glimpse at the way cells recruit proteins that have long been used in evolution into the highly specialized machinery of neurotransmitter release....Scientists Find Further Global Warming Evidence In Temperature Reconstruction Study
...olcanic emissions both played an important role in governing climate variationsover the period studied. However, over the past few decades, greenhouse gases produced by humanactivities appear to have had an increasing influence on temperatures. "Theanomalous warmth of several recent years appears likel...Scientists Identify New Gene That Controls Sleep/Wake Cycle
...studies have indicated that the genes and proteins governing circadianrhythms in Drosophila play a similar role in humans. In humans, daily circadianrhythms underlie many functions, including the sleep/wake cycle, bodytemperature, mental alertness, pain sensitivity and hormone production. Innatural condition......lay the groundwork for future environmental policy governing Pfiesteria andthe Chesapeake Bay, the Ecological Society of America and the AmericanInstitute of Biological Sciences will host the "Pfiesteria in Maryland" and"Chesapeake Bay Ecosystem" symposia at their joint annual meeting, held inBaltimore, Maryl...Molecular Mission Unveils New Genetic Link To Common Birth Defect
...e of GATA-2's controlelements--specifically, those governing the expression of the gene in tissuessuch as the genitourinary system--must reside hundreds of thousands of basepairs away from the gene itself. Notwithstanding the power of the new method, Dr. Engel was quick to note that itdoes not preclude the nee...National Science Board Honors Maxine Frank Singer With Vannevar Bush Award
...s to science and engineering. The NSB, the governing body of the National Science Foundation (NSF),annually honors a senior scientist and statesperson as a distinguished leader inscience, engineering or technology. The Bush Award recognizes years ofpioneering discoveries, public service and contributi...UT Southwestern Researchers Find Way To Control Gene Activity, Opening Way For Cancer Drugs
...t we know how to get PNAs into cells and the rules governing theirbinding to DNA and RNA, I can even foresee that these small molecules can make acontribution to development of drugs designed to treat almost any human disease. Other researchers on the Chemistry and Biology study included: HHMI associateand pha...The mathematics of capillary phenomena
...entific and mathematical challenges. Theequations governing these phenomena are highly nonlinear and in general cannotbe solved exactly. Further, the theory was difficult to confirm experimentallybecause capillary action can be masked by interference from other physicalphenomena. Recent mathematical discoveri......uate systems and policies are already in place for governing suchresearch. The study states that federal funding should be used for research on human stemcells-- including embryonic stem cells that have already been isolated inlaboratories-- but that there is enough public concern about the process ofderiving...Clay M. Armstrong, MD, wins 1999 Albert Lasker Basic Medical Research Award
...nd between cells. His work unveiled the mechanisms governing thebehavior of ion channels. These basic components of all cells play a fundamentalrole in the conduction of electrical impulses in nerve, muscle, and heart, andcontrol the central nervous system, including the brain, muscle contraction,cardiac rhyth...Cancer gene is normally a 'carpenter' in the cell
...hegrowth of nerve cells and the metabolic pathways governing formation andrearrangement of the cytoskeleton. In their experiments, the Duke Medical Center researchers basicallyexplored the effects of genetically manipulating mouse cells called fibroblaststo alter the levels of the growth factors and th...NIH grantee Günter Blobel wins Nobel Prize for protein signaling discovery
...re recently, Dr. Blobel has studied the mechanisms governing the bidirectionaltraffic of proteins into and out of another membrane-bound cellular organelle,the nucleus. Dr. Blobel currently receives support from NIH's National Centerfor Research Resources for the identification of the proteins that make up th...AGU names new journalism award for David Perlman
...n 1997. Two factors underlay the decision by AGU's governing body, the Council, to establish the new award. First was the increasing number of entries in recent years and the expanding range of media they represent. Second was the difficulty the independent judging panel has found in meaningfully weighing news...How biological molecules move electrons: Simplicity trumps complexity
...have shown that the natural engineering principles governing electron transfer within proteins are significantly less complex than has been the prevailing view. Of the many parameters influencing the movement of electrons within biological molecules, proximity alone of the electron's origin and destination poi...Genes pertaining to 'maleness' evolve more rapidly than their non-sexual counterparts
...failure are enormous," said Wu. "Presumably, genes governing male reproduction are under continuous pressure to evolve ways to outcompete other males when it comes to fathering offspring." In previous research, Wu and colleagues found that genes related to sperm production in fruit flies, mice and rats evo...Breakdown of penicillin by resistant bacteria elucidated
...d to improved antibiotics, the chemical principles governing the reactivity of penicillin that we have found are fundamental for designing compounds of pharmacologic importance," says Makinen. Penicillin-resistant organisms are currently among the most important sources of hospital-acquired infections. Some...AAAS seeks entries for online category in Science Journalism Awards
...d magazine--in this year's competition. The rules governing the online awards will remain consistent with the rules already established for the science journalism awards. The award winners will be honored at the AAAS Annual Meeting in San Francisco, Calif., in February 2001. Contest Rules The contest year...Biotechnology research to grow from embryonic start
...n the laboratory under guidelines similar to those governing other human cell types. Because stem cells at present must be harvested from embryonic tissue, there is the possibility of an immune reaction when they are implanted into a recipient; an outcome associated with many organ and tissue transplants. The......lly, Spradling's studies indicate that the signals governing stem cell differentiation appear to be conserved in Drosophila through embryonic and larval development. "This fact may simplify the problem of creating differentiated cells from stem cells, because you don't need a whole new collection of mechanis...