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Tag: "attempt" at biology news

Tissue engineering for craniofacial reconstruction

...ted with traditional transplants. Tissue engineers attempt to repair or regenerate damaged tissue by using engineered tissue substitutes that can sustain functionality during regeneration and eventually integrate into the host tissue. The traditional tissue-engineering paradigm combines isolated cells with a...

Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates

...e successfully replicated in other hospitals in an attempt to reverse the rapid increase in CDI in the NHS. This finding is especially important because CDI rates are rising rapidly in the UK and a new more virulent strain has recently been identified2 A 2005 study by the Healthcare Commission3 found that ...

MIT device draws cells close -- but not too close -- together

...rchers erected chemical "moats" around cells in an attempt to keep them close but separate. Over time, however, cells invariably breech the divide. "They are very good at crossing the moat," said Bhatia, who performed several such experiments in graduate school. Bhatia and Hui's first thoughts about how t...

Lungs try to repair damaged elastic fibers

...ering chronic obstructive pulmonary disease (COPD) attempt to repair damaged elastic fibers, a new finding that contradicts the conventional wisdom on the capabilities of the adult lung. The study "Evidence for attempted regional elastic fiber repair in severe emphysema," was done by Jason Woods, Kristin Ca...

Why don't all moles progress to melanoma?

...ll be required. In future research, Soengas will attempt to determine exactly how oncogenes trigger the unfolded protein response in malignant and non-malignant skin cells. "By comparing what happens in normal melanoctyes with what happens in melanoma, we may be able to come up with events that are specifi...

NASA satellite data helps assess the health of Florida's coral reef

... mapping these healthy regions, officials can then attempt to simulate those conditions elsewhere. Climate conditions, especially sea surface temperatures, are considered a major factor in coral reef health. Bleaching events typically peak when waters reach their warmest levels, usually in late summer and ...

NHGRI aims to make DNA sequencing faster, more cost effective

...particles and DNA molecules. The investigator will attempt to demonstrate that more than 1 billion individual DNA molecules can be sequenced in massive parallel though a process involving cyclic sequencing by ligation, a process where an enzyme is used to join pieces of DNA together. This phased award will i...

'Failed' experiment yields a biocontrol agent that doesn't trigger antibiotic resistance

...ine task for the experienced scientist - but every attempt failed to produce a live bacterium. Plasmids are circular DNA molecules that are different from chromosomal DNA, the genetic material that encodes the instructions for life in all cells. Plasmids are small, non-chromosomal DNA molecules. They are ...

Genetic surprise confirms neglected 70-year-old evolutionary hypothesis

...ility to sequence whole genomes that we could even attempt to investigate the question." Curiously, the hypothesis nearly died twice. Theodosius Dobzhansky, a well-known evolutionary geneticist, studied fruit flies in the infant days of genetic research in 1930. He mapped out how it might be possible for s...

Scientists win grants to develop $1,000 genome sequencing technology

...anoparticles in the arrays. The investigators will attempt to demonstrate that more than 1 billion individual DNA molecules can be sequenced simultaneously....

Replacing insulin is top-ranked breakthrough foreseen for health in developing world

...geted by regenerative medicine, "there has been no attempt to understand systematically how regenerative medicine could contribute to improving health in developing countries," the authors say. Building Capacity in Developing Countries for Regenerative Medicine While developed countries share large int...

Successful lung cancer surgery not enough to break nicotine dependence in many smokers

...able to quit by the one year mark waited longer to attempt to smoke again, or never began again. In fact, more than one in four patients who smoked after surgery were nonsmokers at the 12-month follow-up, he said. "Perhaps for these patients, lung cancer surgery was a wake-up call to quit, but many others n...

Climate experts search for answers in the oceans

...rs from various fields to pool their efforts in an attempt to understand how the climate is reacting to changes. "Clues to climatic changes may already be written on the oceans?surface. Because we now have detailed data that allow us to look for correlations, we are learning how to read those messages," sai...

Molecular 'signature' protects cells from viruses

... therapy,' Professor Hartmann stresses. 'Before we attempt to cure diseases by introducing genetic material, we ought to understand precisely how the cells react to this genetic material.'...

Hope for a more effective and less toxic cancer drug

... Conventional chemotherapeutic drugs target and attempt to kill rapidly dividing cancer cells. This is sometimes successful in halting the disease, but these drugs inevitably damage many normal tissues. Hence, even when the chemotherapy works, the side effects for the patient can be very serious. ABT-...

Ferns provide model for tiny motors powered by evaporation

...n to add electrical components to the device in an attempt to generate electricity. They predict that the device will be able to generate the same amount of electricity as other scavenging devices, say, a solar cell in a calculator. The ideal application, Borno said, would be to power a remote sensor where ...

Extreme environment changes fish appearance

...die if reintroduced directly to Devil's Hole in an attempt to rebuild the population. And if an animal's form is so intimately connected to its environment, is it still the same fish if it is not preserved in the same habitat? "What is it that we try to preserve -- just genetics, or the habitat that makes...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

...ntion strategies. The study represents the first attempt to integrate what science knows about the natural history of smallpox ?how various forms of the disease manifest over time ?with human patterns of behavior to construct the most-comprehensive model of a smallpox epidemic to date. "If smallpox app...

Twenty Years of Malaria Research: Outcomes and Perspectives

...Buddhist Army, targeting foreign aid workers in an attempt to force the refugees to return to Burma. During the attack, Professor Nosten and his colleague Rose McGready had been forced to hide in the jungle. Now, Professor Nosten is assisted in his work by Thai nationals from the region, including a number...

Caterpillars tell us how bacteria cause disease

...K to screen other harmful bacteria using RVA in an attempt to identify genes which could be possible vaccine targets to prevent disease outbreaks in the future. Professor Julia Goodfellow, BBSRC Chief Executive, said: "This sort of genomics research is crucial in moving forward our understanding of evolu...

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