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Tag: "kind" at biology news

Bones from blood: Scientists aim to break new ground on fractures

...o explore a more ethically and socially integrated kind of biology," he added. Professor Andrew Webster and Dr Nik Brown, of the Science and Technology Studies Unit (SATSU) in the Department of Sociology, will link the scientific questions of MSC isolation and expansion to the wider environment and defin...

Free HIV tests cheaper than charging when goal is preventing AIDS

...AKKUKI called it the 'crash' period because it was kind of crazy," Thielman said, with nearly four times as many people coming in on some days for the free HIV tests ?from 4 people per day to 15 or more. Even after the fee was reinstated, the testing numbers stayed higher than before, about 7 people per d...

You will remember this

...econds before each word, telling the subjects what kind of decision to make about the following word. Part...e are currently trying to find out more about this kind of brain activity and how it helps long-term memory." ...

Swiss researchers develop all-in-one remote control gene expression tool

...el and exciting is a fusion protein that acts as a kind of remote control. By administering an antibiotic, the genetic manipulation ?either the transgenic material introduced by the lentivirus, or the gene silencing via RNA interference--can be switched on or off at will. An all-in-one tool like this ?ef...

Largest study of human 'interactome' reveals a novel way

...sure a protein's importance," he says. Using this kind of comprehensive comparison of information about human and other organisms allowed Pandey's group to identify 36 previously unknown protein-protein interactions, nine of which were tested in the laboratory to verify what the analysis suggested. "We ...

Intelligently designed molecular evolution

...e they can design a promiscuous enzyme to make any kind of product they want, even one that does not occur in nature, this demonstration represents a significant step in that direction. The idea would be to one day be able to design an enzyme synthase that would evolve along a specific functional pathway...

Pain killer fights breast cancer by targeting key enzyme

...cer. This form of breast cancer is the most common kind of breast cancer in postmenopausal women. Aromatase converts hormones called androgens into estrogens, such as the hormone estradiol. Estrogen is a powerful mitogen ?an agent that causes cells to divide, and too much estrogen can cause cells to divi...

Pitt professor's theory of evolution gets boost from cell research

...ations in the cell, and so on. In short, with that kind of protection from change, it is very difficult for mutations, of whatever kind, to gain a foothold. But extreme stress pushes cells beyond their capacity to produce protective proteins, and then mutation can occur. This revelation has enormous impl...

Alcoholism, smoking and genetics among Plains American Indians

...ividuals may be less likely to participate in this kind of risky behavior and may be protected from alcoholism." Enoch and her colleagues also found that the Val allele was a risk factor for smoking, but only in women. For the current study, researchers recruited 342 (201 women, 141 men) community-based...

Sustainable farm practices improve Third World food production

...e & Technology . The study, the largest of its kind to date -- 286 farm projects in 57 countries -- concludes that sustainable agriculture protects the environment in these countries while substantially improving the lives of farmers who adopt the resource-conserving practices. Yields increased by an...

Human albumin from tobacco plants

... it has to be thoroughly purified to eliminate any kind of contaminant. Moreover, it is necessary to assure that the protein obtained has an identical structure to the human one to guarantee that its functioning will be 100%. ...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...n a large population alone," Templeton said. "It's kind of like you stirred the pot at random, but then it goes off in a new direction due to natural selection. So, that was a very controversial idea when it was introduced. I corresponded with Mayr for 25 years, and he considered it to be one of his ver...

Mechanism for memory revealed in neurons of electric fish

...ith each other. "Every time they discharge, it's kind of like they are opening their eyes and closing them," says Zakon. "Each pulse of electricity is a snapshot of the environment. These guys are swimming around and discharging at a very regular frequency. They're digitizing their environment." But a ...

A surprising pair of proteins help make healthy eggs

...etween TAF4b and c-Jun and the formation of a rare kind of ovarian cancer that springs from granulosa cells. The scientists arrived at their findings by creating two matched rat cell lines of ovarian granulosa cell origin. In the experimental line, the level of TAF4b was increased. Berkeley researchers c...

Powerful technique for multiplying adult stem cells may aid therapies

... or how this stem cell decides to develop into one kind of cell as opposed to another," says Lodish. Lodish and his colleagues are collaborating with researchers at Lund University in Sweden to repeat these results with human cord blood. ...

Waking a sleeping virus

...eah, I hate it too when there's no picture in this kind of article A detailed structural picture of a molecule that plays a key role in activating the Epstein Barr Virus in human cells has now been obtained by researchers at the European Molecular Biology Laboratory (EMBL) and the Institut de Virologie ...

Novel molecular 'signature' marks DNA of embryonic stem cells

...ly as a support for the double helix but also as a kind of gene "gatekeeper." It accomplishes the latter task by selecting which genes to make active or inactive in a cell, based on the nearby chemical tags joined to its backbone. By examining the chromatin in mouse ES cells across the genome, the scienti...

Aggression-related gene weakens brain's impulse control circuits

...d and contribute to manifestly violent behavior, a kind of genetic double jeopardy." ...

Researchers develop portable 'vein finder' for faster, more accurate injections

...d vessels for general blood-flow studies. But this kind of equipment is impractical and too costly for field use. "Although the use of Doppler technology isn't new, the novel aspect of our vein finder is the system's design, which makes it both portable and economical," says Peter Rogers, a professor in ...

Study in Science holds promise for a new approach to drug therapy

...Rs are a part of a process where cells convert one kind of signal received on their surfaces into another set of signals inside them. Proteins called receptors are built into the outer cell surfaces and designed to react with a single, specific signaling molecule (a ligand). When a signaling molecule dock...

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