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Tag: "screen" at biology news

New DNA 'fingerprinting' technique separates hemp from marijuana

... for local Minnesota agriculture. Weiblen seeks to screen a wider range of Cannabis cultivars to refine the technique. He is also working to identify regions of the Cannabis genome responsible for drug content in marijuana. If enough can be learned about the genome, it may one day be possible to produce an ...

Nanotechnology may find disease before it starts

...noparticles may make it possible for physicians to screen for tumors very quickly, and perhaps lessen the need for a biopsy in many cases," Liu said. Nanoparticles are smaller than any cell in the human body, so they may pass through the walls of the leaky blood vessels, or capillaries, of tumor tissue and...

How does the brain know what the right hand is doing?

...it at a bench and place their right hand through a screen so they couldn't see it. The hand was clamped so that the researchers could move it, but the subjects could only push against a fixed plate. The researchers then moved the hand and the subjects had to say which way it was pointing. The researchers th...

Screening blood for West Nile virus

A recent mandate to screen blood donations in all US states for West Nile vir...eening strategies, and the decision on how to best screen blood samples has been left to the states and the blood collection agencies. Caroline Korves (of C...

Fruit fly's beating heart helps identify human heart disease genes

...d catalogued, enabling researchers to systemically screen genes to identify potential gene mutations or vari...a fly. With this novel fruit fly model, we can now screen genes we believe are involved in human heart disease and test them in the fly model." If a candidat...

Enzyme inhibitors block replication of SARS virus

... discovery techniques developed in the Wong lab to screen large numbers of weak enzyme inhibitors, and then attaching additional compounds to look for stronger reactions. Research Associate Chung-Yi Wu, a member of the Wong lab, is the paper's lead author. He said the finding was unexpected. "We wanted ...

'Virus chip' detects new virus in prostate tumors

...irus chip resides in its ability to simultaneously screen for all viruses, without preconceptions or bias," said Joe DeRisi, PhD, a Howard Hughes Medical Institute (HHMI) investigator at UCSF who developed the chip with colleagues in his lab. "In the case of these prostate tissues, no one would have suspect...

Infants can organise visual information at just four months

...ments, each baby was placed in a car seat facing a screen onto which images were projected. Overhead cameras recorded how long each infant looked at images on the screen. The infants were shown an array where the stimuli were arranged by similarity in either horizontal lines or vertical columns. For example...

You will remember this

...e results. In the first, a symbol was presented on screen a few seconds before each word, telling the subjects what kind of decision to make about the following word. Participants either had to decide whether the word referred to something living, or whether the first and last letters of the word were in al...

Contagious obesity? Identifying the human adenoviruses that may make us fat

...ulations appears to be the only reliable method to screen adenoviruses for their potential to cause obesity in humans at the present time," he noted. Obesity contagion theory slow to catch on The notion that viruses can cause obesity has been a contentious one among scientists, Whigham said. And yet, th...

The bioweapon is in the post

...the 12 companies that replied, just five said they screen every sequence received. Four said they screen some sequences, and three admitted not screening sequences at all (see Table). The risks posed by g...

Tuberculosis still a risk for patients receiving HIV drugs

...ns caring for patients with HIV should continue to screen for and to treat latent tuberculosis infection in their patients, even if they have minor levels of immune suppression or are successfully treated with HAART." Health care settings should also maintain strict control measures to prevent the spread of...

Greasing interferon's gears may pave way to greater therapeutic benefits, fewer side effects

...immune systems." It may be possible, as well, to screen patients for levels of Stat1 responsiveness and use the same treatment strategy to correct low levels of response, according to Holtzman. The researchers are currently screening newborn infants for levels of Stat1 action and tracking their susceptibi...

Finding rewrites the evolutionary history of the origin of potatoes

...ecomes potentially useful," Spooner says. "We can screen samples to see if related germplasm has similar resistance, in which case we may be able to guide plant breeders to germplasm to use in breeding programs." And beyond the agricultural benefits, Spooner's study has helped to rewrite a small but impor...

Noise And Delays Explain Why Some Genes Oscillate In Activity

... researchers measured how long they could keep the screen blank between the first and second images without affecting the monkeys' performance. They found that if the monkeys were tired, they couldn't remember the first image for long as they could when they were alert. But with the drug, the sleep-deprived...

Clocking in Pillow Time without the Pillow

... researchers measured how long they could keep the screen blank between the first and second images without affecting the monkeys' performance. They found that if the monkeys were tired, they couldn't remember the first image for long as they could when they were alert. But with the drug, the sleep-deprived...

Yale participates in global human genome initiative

...ves us a cutting-edge technology to systematically screen the human genome using cell-based models of human ... University research community and will be used to screen for human gene functions. "Coupling Yale's expertise in the molecular basis of human disease with ac...

Genetic testing still smart choice, despite uncertainties

... diagnosis has been used for more than a decade to screen embryos for hereditary diseases such as Down syndr...s of chromosomes, doctors cannot always accurately screen them for genetic diseases, Kovalinskaia said. "As more data were coming out, saying that as many a...

Small molecule inhibitor of cholera discovered

...line edition of Science. Using a high-throughput screen of 50,000 small molecule candidate compounds, Mekalanos and lead author Deborah Hung identified several that turned off the expression of virulence proteins, factors that help the bacteria invade its human host and cause disease. They then showed tha...

Student scientists create living bacterial photographs

...h medium for bacteria. Like pixels on a computer screen switching between white and black, each bacterium either produced black pigment or didn't, based on whether it was growing in a light or dark place in the dish. The resulting images are a collection of all the bacteria responding to the pattern of li...

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