biological 2 8

Tag: "biological" at biology news

Alien woodwasp, threat to US pine trees, found in N.Y.

...tain and control the infestation," says Hoebeke. A biological control method using a parasitic nematode has been remarkably effective in other countries in the southern hemisphere where the woodwasp has been accidentally introduced, he says. Related World Wide Web sites: E. Richard Hoebeke: http://www.entomo...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...er's physical and chemical properties augment this biological data, revealing relationships between the biological communities, water temperature, salinity and nutrient loads. The scientists operated around the clo...

Understanding how bacteria communicate may help scientists prevent disease

...rd question is how the circuit regulates important biological processes, such as biofilm formation and virulence. "Biofilms make bacteria resistant to antibiotics, so preventing the formation of biofilms or short-circuiting bacteria's ability to become virulent by disturbing their communication network so they ...

The first impact factor for PLoS Biology ?13.9

...r 2003, as an open-access home to the very best in biological research. By any measure, the impact of this launch was impressive. The on-line publication of the first issue was accompanied by strong and favorable media coverage, and subsequent issues continue to receive regular attention. Content from PLoS Biol...

Does vitamin C help prevent or treat the common cold? Maybe not, after all.

... consistency of these findings points to a genuine biological effect." But the authors did find evidence that the vitamin could help prevent colds in people exposed to extreme physical exertion or cold weather. They found six studies in which the vitamin or a placebo was given to marathon runners, skiers and s...

Cancer related gene p53 not regulated as indicated by previous tissue culture research

...erapeutical drugs used to treat cancer exert their biological effects on tumor cells through activation of the p53 pathway. Having an accurate view of how p53 is regulated will allow the development of specific drugs that unleash the killing power of p53 by interfering with its negative regulators. Our cells a...

Critical step traced in anthrax infection

...infection, which may prove to be relevant in other biological systems. "This is only a partial picture," Collier said. "There are still major outstanding questions about the overall process that need to be addressed." ...

Team Invents Device For Weighing Individual Molecules

...e first nanodevices capable of weighing individual biological molecules. This technology may lead to new forms o...h is to engineer the interfaces so that individual biological molecules can be weighed. For this, the team will likely collaborate with various proteomics labs fo...

Genome study of beneficial microbe may help boost plant health

... of P. fluorescens that increase its potential for biological control," says Loper. She is a plant pathologist w...y presents the first complete genome sequence of a biological control agent for combating plant diseases. P. fluorescens Pf-5 was discovered two decades ago by C...

Stem cell treatment improves mobility after spinal cord injury

...dendrocytes are the building blocks of myelin, the biological insulation for nerve fibers that is critical for maintenance of electrical conduction in the central nervous system. When myelin is stripped away through disease or injury, sensory and motor deficiencies result and, in some cases, paralysis can occur...

Protein synthesis can be controlled by light, opening way for new scientific, medical applications

...isms grow and flourish, but studying their complex biological processes in living systems has been extremely dif... have focused on releasing molecules that activate biological events, little has been done in the area of regulating the inhibition of biological processes. "Ult...

Program finds lost genes in nematode genome

...ed for a multicellular organism." C. elegans is a biological model for animal development and genetics, and is the first animal genome to be sequenced, back in 1998. Nematode researchers rely on a genome annotation database called WormBase. Along with confirmed genes, WormBase includes thousands of predicted g...

MicroRNAs play a big part in gene regulation - and evolution

...of targets, the authors could furthermore assign a biological function to 70% of all microRNAs. "For the first t...mmunity, providing opportunities to test predicted biological functions of microRNAs and to explore their evolutionary significance. ### Citation: Grün D, Wang ...

Small worm yields big clue on muscle receptor action

...ntraction. Janet Richmond, assistant professor of biological sciences at UIC, along with graduate students Denis Touroutine and Anna Burdina, reported the findings in the July 22 issue of the Journal of Biological Chemistry. The research also drew on bioinformatic data provided by David Miller, associate profe...

Mosaic mouse technique offers a powerful new tool to study diseases and genetics

...loped in the laboratory of Liqun Luo, professor of biological sciences at Stanford who was recently named an investigator with the Howard Hughes Medical Institute. "With MADM, you can look at a tiny subset of cells and study gene function at a very high resolution," says Luo, who also is affiliated with the Ne...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...likely place to study community development, but a biological breakthrough is allowing University of California, Berkeley, researchers to probe the give and take in this microbial mat. Last year, the UC Berkeley team joined with the Department of Energy's Joint Genome Institute to pluck out the genomes of the ...

It's electric: Cows show promise as powerplants

...d an associate professor of food, agricultural and biological engineering at Ohio State University. While rumen...r and a graduate student in food, agricultural and biological engineering at Ohio State. The research showed how electricity can be created as the microorganisms...

Molecular steps involved in the creation of gene-silencing microRNAs identified

...do miRNAs arise? And what can we learn about their biological function from their origins? In a study published last year in Nature, researchers at The Wistar Institute identified a two-protein complex, called the microprocessor complex, which controls the earliest steps in the creation of miRNAs in the cell nu...

Brown-Harvard team solves mobile DNA's surgical sleight-of-hand

...octoral research associate at Brown, conducted the biological and biochemical aspects of the experiments. The Harvard team ?Tapan Biswas, Hideki Aihara, David Filman and Tom Ellenberger ?used X-ray crystallography, a technique that combines strong X-rays and sophisticated computer software, to create a 3-D digi...

Scientists take aim at virulent bacteria by decoding machinery of key control enzyme

...al reaction known as methylation. Methylation is a biological process used to tag a variety of molecules, includ...is kind of drug would not interfere with important biological processes in humans." Other coauthors include Dr. Stanley Hattman, professor of biology from Univer...

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