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Tag: "created" at biology news

Powerful genome ID method extended to humans

...an algorithm to handle the massive amounts of data created by a restriction mapping technology known as "optical mapping." Restriction maps provide coordinates on chromosomes analogous to mile markers on freeways. Lead author Anton Valouev, a recent graduate of Waterman's lab and now a postdoctoral fellow...

End of deforestation in view? Experts advance new way to size up global forest resources

...roceedings of the National Academy of Sciences was created by six experts from diverse academic disciplines (forestry, environmental technology, ecology, geography, resource economics, and agronomy) in China, Finland, Scotland, and the USA who, following independent lines of thinking, came to agree that fore...

HIV gets a makeover

...er and the Aaron Diamond AIDS Research Center have created a version of the AIDS virus that replicates vigoro...st robustly, over several generations Hatziioannou created an HIV-1 mutant that could evade the monkey cells' TRIM5 recognition. Another bit of engineering...

'Trojan Horse' agent halts bone metastasis in mice

...olleagues began to develop several years ago. They created the drug by fusing the smallest of VEGF proteins (VEGF 121) to a genetically engineered toxin, gelonin, derived from a plant that grows wild in India, and used bacteria to produce the fusion protein. The agent is designed to enter new blood vessel ce...

Researchers make nanosheets that mimic protein formation

...am observed the sheets in experiments. Though they created them, they weren't sure how. "We were aware of certain proteins in living organisms that self-assemble into layers, called S-layers," Kotov said. S-layer proteins comprise the outermost cell envelope of a wide variety of bacteria and other single-...

Squid-inspired design could mean better handling of underwater vehicles

...goal to resolve a widespread problem." Mohseni created his new generators after studying the formation of vortex rings, much like those formed by squid and jellyfish to move themselves underwater. Vortex rings are formed when a burst of fluid shoots out of an opening, moving in one direction and spreadi...

What's next for gene therapy? Plastic

...ia Tech researchers think polymer molecules can be created to do the job. The research will be presented at the 232nd national meeting of the American Chemical Society in San Francisco September 10-14, 2006. "We are applying our fundamental knowledge in polymer science to gene transfer agents," said Tim...

Edge density key to controlling gypsy moth spread

...and the existence of a few satellite seed colonies created by human transfer of the insects over long distances, explain the invasion pulses, the researchers explain today (Nov. 16) in Nature. The gypsy moth adult is flightless and usually only spreads a short distance beyond infestation boundaries. External...

Research holds promise for herpes vaccine

...owering their defenses. In his research, Halford created a vaccine where the genetic instructions that make ICP0 were disrupted. Without instructions on how to do its clever ICP0 trick, the virus can still establish an infection in animals, but the spread of the virus is stopped long before disease can occ...

Chemical tests of cell growth enter third dimension

...the cells in three dimensions." Yang and his team created a device that uses standard well plates in a new way. In one well, they plant cells on one of their 3D scaffolds. The surrounding eight wells contain only growth medium. The 3D glob of cells in the middle well glows brighter than a 2D film, due to a...

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

...es. To conduct the study, Longini and colleagues created a computer model that calculated the spread of smallpox via aerosol dissemination ?the most likely choice of terrorists ?within a community of 50,000. Members of this virtual community interacted the way people normally do: within households, neighbo...

HIV exploits competition among T-cells

...f physics and astronomy. The new computer model, created by Deem and Guanyu Wang, now an assistant professor of physics at George Washington University, is the first to accurately reproduce all three stages of HIV infection. The first is marked by an initial spike in virus production that's immediately fol...

Researchers create genetically matched embryonic stem cells for transplantation

...so potential safety concerns. Embryonic stem cells created through parthenogenesis have altered expression of...in some tissues. In addition, embryonic stem cells created through parthenogenesis may have some regions of their genome that contain duplicated copies of muta...

Prototype just-in-time medical device enables untrained bystanders to save lives

... (HF/E) researchers at the University of Utah have created a prototype device that could make it possible for anyone ?even those with no emergency medical training ?to perform life-saving actions for victims of sudden cardiac arrest. The just-in-time support, or JITS, device provides bystanders with guidanc...

Fighting like a girl or boy determined by gene in fruit flies

...r of the Institute of Molecular Pathology. Dickson created male flies with the female version of the gene and female flies with the male version. In Dickson's courtship studies, male fruit flies with the female fruitless gene were not acting like males, but it wasn't clear that they were acting like femal...

Caterpillars tell us how bacteria cause disease

...m have fragmented the genome for this bacteria and created a DNA library of over 1,500 separate cloned fragments ?which covers most of the genome. They then inject the clones into Tobacco Hawkmoth Caterpillars to study the effects. Their work has shown that clones containing harmless genetic material are ...

Experimental vaccine protects mice against deadly 1918 flu virus

...st the killer 1918 influenza virus. They also have created a technique for identifying antibodies that neutra...e 1918 flu virus, Dr. Nabel and his VRC colleagues created plasmids--small strands of DNA designed to express specific characteristics--carrying genes for the ...

Uniform tungsten trimers stand and deliver

...ansition metal oxides. White noted, "While we have created the smallest nano-cluster of a uniform size you ca...oting that this is the first time researchers have created and imaged monodisperse oxide clusters on another oxide. ...

PNAS study reveals why organs fail following massive trauma

...e that an overwhelming wave of biochemical signals created by the innate response after massive trauma can mistakenly trigger anergy and apoptosis, especially in T cell lymphocytes, shutting down the adaptive response before it can begin. Without the normal transition, the innate system continues to pump out...

Innovative movies show real-time immune-cell activity within tumors

...ts at The Wistar Institute have for the first time created three-dimensional, time-lapse movies showing immune cells targeting cancer cells in live tumor tissues. In recorded experiments, immune cells called T cells can be seen actively migrating though tissues, making direct contact with tumor cells, and ki...

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