Northwestern Scientists Discover How Herpes Simplex Virus Infects Cells
...bind to manytypes of human cells but is capable of penetrating only certain cell types. Rebecca Montgomery, a research associate in Spear's laboratory, cloned ahuman gene that induces production of a protein that allows herpes simplexvirus to penetrate into lymphocytes. Morgyn Warner and Brian Lum, othermembers ...Recombinant Protein Immunizes Mice, Promises New Strategy Against Infection And Cancer
.... However, antibodies are useless whenit comes to penetrating cells. The task of attacking cells infected by virusesor deformed by cancer falls to the second arm of the immune system, led byimmune cells called T cells. T cells orchestrate a multi-pronged attack, and ifappropriate, turn into 'killer cells,' ca...Biggest Acoustics Meeting Ever
...u.edu) will discuss a new acoustical technique for penetrating the surface of thesematerials to measure when the materials are adequately hardened (2pPAa9). In addition, the researchersare using their technique to investigate the physical and chemical changes that take place in cement duringhardening. New Ways......bind tomany types of human cells but is capable of penetrating only certain cell types. Robert J. Geraghty, Spear and collaborators from the University ofPennsylvania, Philadelphia, described the new herpesvirus receptor in an articlein the June 5 issue of the journal Science. Geraghty is a research asso...At Last, Zoologists May Know What Is Killing The World's Amphibians
...ned by other factors, such as ultravioletradiation penetrating the atmosphere due to the thinned ozone layer oragricultural chemicals. "Many factors could be at work, but the fungus isprobably right up there," says Pessier. Nobody knows where the fungus came from, or how it is spread (seebelow). It was f......this hypothesis. In her study, she replaced the penetrating fungus with gentle local mechanical stimulation of the cells using a tungsten needle of the same diameter as a fungal hypha (2-5 m). As with the fungal infection hypha, by itself this local mechanical stimulus induced the translocation of...Smoke breathes new life into a forest
...rticles Smoke triggers germination directly by penetrating the seed, as well as indirectly, by vapor or liquid transfer from soil to seeds. The scientists found, within the smoke-stimulated plants, that a variety of factors trigger germination. Such factors are: charred wood, Nitrogen dioxide, durati...New "Bacteria Bashers" Wipe Out Infection
...iotics, which must perform the complicated task of penetrating bacteria and interfering with their functioning, the peptides simply attach themselves to bacterial membranes. The Weizmann scientists have discovered that peptide attachment depends primarily on chemical composition, not structure. As a result, a ...Video And Data Link Provide Unique "Seal's Eye View" Of The World
...also recorded seals apparently using surface light penetrating the ice tosilhouette Antarctic cod, a prey species, indicating that visual clues may beimportant to hunting seals. The sound and video equipment, he noted, will allow greater insight intothe behavior of animals that regularly range up to thre...Factor for acquiring skin barrier function identified
... never achieve the ability to keep substances from penetrating through theirskin. These mice loose weight rapidly after birth due to acute dehydration.Klf4 codes for a transcription factor which binds to specific sites on the DNAstrand and turns gene expression on or off. Genetically engineered mice that lacked...Future uses of MicroElectricalMechanical (MEM) systems to be featured at Santa Clara show
...novel plating and molding technology that uses the penetrating power ofsynchrotron radiation. With it, parts can be made from ceramic, polymer, andeven permanent micromagnets. These cutting-edge innovations and applications will be unveiled at the show fortechnology experts and researchers from academia, govern......ectronic Medical Records and Online Doctoring The penetrating impact of the Internet will recast the distribution, financing,speed and production of traditional medical products and services as well ascreating increased competition for capital investments. "The Internet gives the advantage of speed over size a...Seeds suffer in rainforest fragments
...ragments are hotter and drier, and have more light penetrating the canopy to the forest floor, than continuous forests do. Those aren't the conditions that rainforest plants are adapted to, and these new results suggest that the seeds simply can't survive." What's more, Bruna said, other research has suggested t......ed compensates for its own lack of root system by penetrating the roots of other plants and stunting their growth. Dr. Watson and his colleagues evaluated 250 organisms and were gratified to find that the Fusarium pathogen attacked the seeds as well as the plant. The next challenge was to find a way to m...Recombinant protein may play key role in treating immunocompromised patients
... However, antibodies are useless when it comes to penetrating cells. The task of attacking cells infected by viruses or deformed by cancer falls to the second arm of the immune system, led by immune cells called T cells. The T cells that home in on infected cells or cancer cells and destroy them are called cy...Ground-penetrating radar detects hard-to-find hazardous waste
... have found a new application for ground penetrating radar: detecting subsurface li...ation within a standard ground penetrating radar (GPR) device, they were able to detect deposits of creosote buried beneath...Asteroid devastation possibly worse than feared
...lost their resistance to ultraviolet radiation and penetrating more deeply, with greater intensity, into shallow waters than it ever has before. "By our calculations, the dust cloud would shield the Earth from ultraviolet light for an extended period, with it taking about 390 days after impact before enough dust...High-resolution image illuminates catalytic engine of the ribosome
... the proteins were embedded among the RNA helices, penetrating into the interior of the ribosome like tentacles." Such penetration of proteins explains why previous researchers had not been able to show that the ribosome depended solely on RNA as its catalytic molecule," said Steitz. "Since (HHMI President) Th...Conservation battle faces long odds in Brazilian Amazon
...ined to the perimeter of the Amazon Forest are now penetrating the heart of the basin, and the many land uses made possible by these roads are destroying the forests. Two models were developed to assess the future impacts of these trends, one somewhat optimistic and the other less so. Both suggest that the Braz...Freezing human eggs - new findings point way to greater success
...granules that normally prevent more than one sperm penetrating the egg. Dr Fabbri hopes many centres worldwide will adopt the technique and that it will soon become routine practice. "It is very important that we improve the possibilities for women to become pregnant after having their eggs frozen. It will offer...