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Tag: "mixing" at biology news

Mutating the entire genome

... They devised a much more efficient method for mixing and recombining pieces of two chromosomes, making it easier to breed mice with human cancers. Such mice are needed to develop new treatments. Vast, Non-Gene Stretches of the Genetic Blueprint The genome is the genetic blueprint of a livi...

Alien plants attack using 'resource conservation' as weapon, researchers say

...ately reducing available resources-for example, by mixing sugar into the soil to lock up nutrients or by blocking sunlight with tarps. But these experiments had relatively limited success. "Our results can maybe explain why that method didn't work for all the invasive species," Funk said. Current techniq...

'Short-circuit' found in ocean circulation

... The research shows that a combination of rapid mixing across and rapid movement along density surfaces creates a 'short-circuit' in the overturning circulation, meaning it is more concentrated in this part of the Southern Ocean. The researchers made use of a unique signal - the spread of helium rele...

DOE JGI sets 'gold standard' for metagenomic data analysis

...ated metagenomic datasets of varying complexity by mixing pieces of over one hundred already sequenced isola...lly saw artifacts created by the program caused by mixing sequences that should not have been mixed. "It's like when you're in the market for a digital ca...

Applied scientists create wrinkled 'skin' on polymers

...lding multifunctional microfluidic devices for the mixing of flow at very small scales and stretching of proteins and DNA. These new efforts, while at early stages of development, are very promising." ...

RNA map provides first comprehensive understanding of alternative splicing

...o simulated alternative splicing in the test tube, mixing purified RNA and a splicing extract. When purified Nova was added to the extracts, it bound to the mRNA clusters, altering the outcome of the how the splicing machinery was able to assemble in a manner that again conformed to the predictions of the R...

Mussels evolve quickly to defend against invasive crabs

...s," he says, suggesting that this could be done by mixing some of the responsive southern mussels into the naïve northern stocks. "Although 15 years is fast to evolve better defenses to your predator, it can be painfully long if you're a shellfisherman," Byers adds. This paper is one chapter of Freeman's ...

Cells use mix-and-match approach to tailor regulation of genes

...ons of transcription factors, as if the cells were mixing and matching parts of its regulatory-protein wardrobe to respond to different environmental conditions. The researchers expect that human cells use a similar system of transcription-factor combinations, but on a larger scale. "A cell's surprising ab...

BGSU biologist trying to crack microscopic code

... the TonB-Tol "cross talk" does provide a tool for mixing and matching parts of the systems and asking what's important and what isn't. "To begin understanding how proteins talk, we first made random mutations--we broke things and then asked what happened," Larsen says. "That strategy worked well and allo...

Human behavior changes the number of strains of infectious diseases

...ors that determine which strains emerge, but human mixing behavior has a big part to play." ...

New University of Toronto research a 'pore' excuse for engineering

...llionths of a metre across. The team created it by mixing an organosilica precursor (silica glass, containing organic groups) with a surfactant -- essentially, a soap that mixes oil and water -- which causes the organosilica to self-assemble into a nanostructure. The scientists then washed away the surfacta...

A biosensor layered like lasagna

In a mixing of pasta metaphors, Pacific Northwest National Laboratory scientists have used electrostatic attraction to layer reactive biological molecules lasagna-like around spaghetti-like carbon nanotubes. This configuration can accommodate a wide range of a...

Poison + water = hydrogen. New microbial genome shows how

...ther organisms may have the equivalent of a modest mixing bowl to process their supper of carbon monoxide, this species has a veritable food processor, letting it gorge on a hot spring buffet all day. "The findings show the continued value of microbial genome sequencing for exploring the useful capabiliti...

Performing monkeys in Asia carry viruses that could jump species to humans

... conditions. "The market is a condensed area for mixing species and pathogens," explained Dr. Gregory Engel, an attending physician at Swedish/Providence Hospital in Seattle, Wash., a clinical instructor of family medicine at the UW, and a co-author on the study. "The animals may be sick or in bad shape t...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

...h this. It looks like direct mother-to-child blood mixing occurring during labor leads to infection." The new findings indicate that intervening just before birth by such suggested methods as sanitizing the birth canal may not work, he said. A better alternative might be to have pregnant women start taking...

Preventing a pandemic: Study suggests strategies for containing a flu outbreak

...istering antiviral drugs to the people in the same mixing groups as the infected person, called TAP for "targeted antiviral prophylaxis," could contain the outbreak as long as it reached 80 percent of the people targeted. A related strategy, GTAP, for "geographically targeted antiviral prophylaxis," which t...

On a wing and a prayer - Alaska researchers seek clues to bird flu

...s and scientists say that could provide an unusual mixing ground for the evolution of new strains of bird flu - strains that could spread to lower latitudes and possibly jump to other species, including humans. University of Alaska (UAF) scientists and state and federal biologists from across Alaska have j...

Stolen gene allows insect virus to enter cells

...r hosts' genomes. They do steal genes, however, by mixing host DNA with their own. "The way they generate diversity in their genome is by recombination," Blissard says. No matter how the original f gene moved from the fruit fly into viruses, it had to change a lot to win its current starring role in infect...

Techniques available to detect soil that inhibits destructive soybean pest

...atode, Westphal and his colleagues determined that mixing 1 percent to 10 percent of nematode-suppressive soil into the top layer of a soybean field plot effectively decreased nematode activity. In addition, they know that viability of plants and soil richness, moisture and temperature can affect how active...

Acid water in East Java threatens biodiversity and local welfare

...problem is simply to prevent the crater water from mixing with both neutral rivers. She believes that this could be realised by channelling the flow of acidic water from the crater into the sea, which with its enormous water surface would not suffer any detrimental effects due to this small quantity of acid...

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