Tag: "contacts" at biology news

Stuck on you: Scientists lay bare secrets of bacterial attachment proteins

...Factor, or DAF. "Cell adhesion is one of the first contacts between bacteria and host," said Dr Matthews. "Knowing the architecture of the bacteria target allows us to conceive ways to disrupt this adhesion, which may lead to potential therapeutic intervention." Dr Matthews' team at Imperial used nuclear mag...

Computer modeling targets epidemics, bioterror

...ng organisms. The scientists will model how social contacts might change in response to an outbreak or to intervention strategies. They will modify the social networks and populations to simulate epidemics in a variety of hypothetical cities. (Stephen Eubank, Ph.D., principal investigator) A research tea...

Introduction of the 'Rett protein' in post-mitotic neurons rescues Rett Syndrome in mice

...est that MeCP2 may be involved in the formation of contacts between nerve cells and may function in activity-dependent gene expression (i.e. learning). Multiple labs have shown that selective mutation of MeCP2 in nerve cells after birth leads to Rett-like symptoms in mice, suggesting that MeCP2 plays an impo...

OneWorld Health plans to form network of volunteer pharmaceutical scientists for global health

...share their ideas, skills, accumulated research or contacts to advance the development of medicines for the benefit of the poorest people in the developing world. She explained that scientists' voluntary services are analogous to what the law profession has long provided in the way of pro bono services to ind...

Researchers model embryo implantation and tumour metastasis in fruit flies

...ifferent extraembryonic membranes fail to maintain contacts and the result is death of the embryo." While fruit flies develop quite differently from humans, there is remarkable conservation of fundamental processes and the genes that control them. For example, two thirds of all known human disease genes are a...

Models help estimate children's exposure to toxins

...s resulting from hand-to-surface and hand-to-mouth contacts among a group of videotaped children. Zartarian's real innovation, inspired by her work with Leckie, was to take a ''microlevel,'' or second-by-second, look at the children's activity. It's an innovation that attracted the attention of her current em...

Surveillance and containment would be effective intervention against deliberate smallpox attack

...s concluded that targeted vaccination of the close contacts of infected individuals during a smallpox outbreak...laced in hospital isolation rooms, and their close contacts would be vaccinated and kept under observation. "We found that any delay in individuals withdrawin...

Planning effective bioterror responses

...y isolating new cases and vaccinating their close contacts should be sufficient to contain a relatively wide-scale release of the virus. Longini's team will report their results, from a simulation of the possible paths of a smallpox epidemic that initially infects 500 people, in a study submitted to a peer...

Studies suggest brain injury results from developmental exposure to alcohol, anesthesia, and lead

...rve cells are growing rapidly and forming synaptic contacts required for becoming integrated into complex neural networks." The human brain goes through synaptogenesis from the sixth-month of gestation through the first few years after birth, leaving a period of several years when immature neurons would be v...

Scientists await first call from Beagle

...ntist for the Beagle 2 project. "We still have 14 contacts with Odyssey programmed into our computer and we also have the opportunity to communicate through Mars Express after 4 January." The next window to receive confirmation that Beagle 2 has successfully landed and survived its first night on Mars will b...

President Bush will honor U.S. science and technology leaders

...currently White House-credentialed should call the contacts listed below for access to the White House ceremony or for interview arrangements prior to, or after, the ceremony. The science and technology laureates will be in Washington for two days, attending meetings and an invitation-only awards banquet ...

Cervantes mission concludes with Soyuz TMA-2 landing

...ing the Cervantes mission Pedro Duque had numerous contacts with the media from Spain and Germany. He talked via amateur radio with primary schoolchildren, winners of the Habla ISS competition, who had the chance to ask him questions. He also spoke live from the ISS to Jos Mara Aznar. "We are both delighted a...

White House awards National Medal of Science to Rockefeller University's James Darnell

...oup of interferon-responsive genes when interferon contacts cells. Interferon, a cytokine used in anti-cancer and anti-viral therapy to halt or slow proliferation of cancer cells or viruses, is sometimes used in combination with chemotherapy. Darnell's lab also has shown that the persistent activation of a p...

Few Filipino farmers know of the benefits of golden rice

...ad been aware of golden rice knew about it through contacts at PhilRice (a Filipino rice research entity), Syngenta (an agribusiness company that owns many of the golden rice patents) and from other farmers. "This suggests that interpersonal channels of communication may be more effective in reaching rice far...

Infants more vulnerable to serious brain injury from falling than previously thought

...s, which are rapid changes in velocity as the head contacts a hard surface and then violently rebounds. The lifelike doll resembling a 6-week-old infant is equipped with sensors to measure rotational velocity and acceleration. These forces increase with higher falls and harder surfaces. The doll was suspende...

Brain cells seen recycling rapidly to speed communications

...tracer cargo in each of several repeated, fleeting contacts with the membrane, report Richard Tsien, D.Phil., Stanford University, and colleagues Alex Aravanis and Jason Pyle, in the June 5, 2003 Nature. Dubbed "kiss-and-run" recycling, this allows for more efficient communication between brain cells, sugges...

Public health measures can contain SARS, two modeling studies suggest

...y careful interventions that, for example, reduced contacts by infected people, or helped them receive treatment more quickly. In one of the studies, U.S. and Canadian researchers used their model to investigate how effective different control measures could be. The possibilities they considered -- including ...

Chimpanzees with little or no human contact found in remote African rainforest

... sometimes observed during our initial contacts with chimpanzees in the Goualougo ... Triangle. "And many of our initial contacts lasted for more than two hours -- some up to seven hours -- and ...

Life sciences publishers take steps to address potential misuse of information by bioterrorists

...n alerts the Editor in Chief. The Editor in Chief contacts the Chair of the ASM Publications Board, and the entire board may be involved in the disposition of the manuscript. ASM publication policy also requires that research articles must contain sufficient detail to permit the work to be repeated by others...

Fluid flow technology takes a cue from fast-swimming sharks

...d caught by the vortices only contacts the peaks of the riblets and not the walls of the pipe, so friction is reduced and the fluid moves faster. Other researchers previously determined that riblets could be used to speed the...

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