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Tag: "weeks" at biology news

Bugs expose underground carbon traffic system 10 times more important than fossil fuel burning

...ntroduced to half of the cores. After another four weeks the grassland was exposed to a particular form of carbon dioxide (a stable isotope of carbon, 13C) for 7 hours, a technique called pulse labelling. Concentration of 13C in cores was then analysed. The soil cores which were exposed to the mites were ...

Neurons generated in the adult brain learn to respond to novel stimuli

...unusual odors or to a normal environment. Several weeks later, the response of the adult-born neurons was evaluated by measuring the activity of genes known to be expressed when olfactory neurons respond to odors. They found that the adult-born olfactory neurons of mice exposed to the panel of odors su...

DNA self-assembly used to mass-produce patterned nanostructures

...hes. We had to run three hundred computers for two weeks to get an answer." The answer for the optimal base configurations for each DNA strand was disclosed to Duke's Office of Licensing and Ventures as a first step towards a potential patent. The researchers have not yet produced a functional circuit on...

MIT researcher finds neuron growth in adult brain

...ton imaging to track specific neurons over several weeks in the surface layers of the visual cortex in livi...t cortex. Dendritic branch tips were measured over weeks to evaluate physical changes. What the researchers saw amazed them. In 3-D time-lapse images, t...

Prostate cancer uses Wnt signaling proteins to promote growth of bone tumors

...nes, of one group of immune-deficient mice. Twelve weeks later, U-M researchers removed and examined bone tumors from the mice. They found that these mice produced tumors with a dense overgrowth of bone. A second group of mice, injected with prostate cancer cells made to express the Wnt inhibitor, DKK-1, d...

New vaccine platform may fight infections with causes from influenza to bioterrorism

...0L-kexin vaccine in three doses administered three weeks apart. Three weeks later, they were infected with pneumocystis. Upon examination, the vaccinated mice had significantly...

Swimming with dolphins can alleviate depression

...ntidepressant drugs or psychotherapy at least four weeks before entering the study, and were not allowed to take drugs during the study. Depression scores were measured before the study and at the end of treatment. Although some participants dropped out of the study, the average severity of the depressive...

Zinc supplements safe for HIV-infected children

.... The children were seen at the hospital every two weeks for the first month, monthly for five months and, as a final visit, nine months after zinc or placebo supplementation began. At each follow-up visit, parents were asked about illnesses since the last visit. In addition, HIV-1 RNA in plasma and CD4+ T...

Living anti-HIV gel shows early promise

... the intestines and vaginas of mice for periods of weeks to months, without causing any signs of disease. Furthermore, the modified bacteria produced large quantities of the HIV-blocking protein. The reproductive and intestinal tracts are prime sites for HIV infection. Various microbes live in each, playi...

PLoS Medicine publishes first trial of effect of male circumcision on HIV infection

...e instructed to abstain from sexual activity for 6 weeks after the operation. The plan was to follow the pa...participants were asked to not to have sex for six weeks after the operation). A further concern is that circumcised men, considering themselves to be "prote...

New antibody shows promise as cure for anthrax

...ved the treatment were still healthy two and three weeks later. "Day after day, we came into the lab to find the animals still healthy and happy," Patterson said. Upon examination of all the animals at the end of both experiments, scientists found no evidence of disease, with no or only trace amounts of...

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

...if the stockpile were deployed within two to three weeks of detection. As part of their study, the researchers consulted with Thai ministry of health officials and concluded that public health workers may decide that TAP, rather than GTAP, is the more realistic strategy, given their resources. This resea...

Color perception is not in the eye of the beholder: It's in the brain

...olor vision, however, began to shift after several weeks of contact use. Even when not wearing the contacts, they all began to select a pure yellow that was a different wavelength than they had before wearing the contacts. "Over time, we were able to shift their natural perception of yellow in one direct...

Number Of Babies Born Prematurely Nears Historic Half Million Mark In U.S.

...008 infants -- were born prematurely (less than 37 weeks gestation) in 2003, according to the report released by the National Center for Health Statistics (NCHS). That's up from 12.1 percent (or about 480,000 babies) in 2002 -- and an increase of more than 30 percent since the government began tracking pre...

Virginia Tech football player uses prototype cast

...y after Humes' accident, which was less than three weeks before the Boston game. The engineering class offered to work on an alternate bracing system that they thought could provide a much stiffer support than the currently available polypropylene molded structure. Among the suggestions considered by the...

Researchers find ways to turn manure into power

... changes in fuel quality produced by more than six weeks of composting, he said. Another research project involves using the byproduct combustion ash as a fertilizer or construction material, Sweeten said. "By assuring year-round uses of manure, the cattle feed yards in this area could not only stay curr...

Old drug shows new promise for Huntington's Disease

...ligram of Clioquinol per day in water. After eight weeks of treatment, they had accumulated four times less toxic protein in their brains than control mice given water alone. The experimental animals lived 20 percent longer than the control animals, did better on tests of motor coordination, and had less w...

Elusive salamanders have role in developing new sampling models

...ugh 2002. Since the first salamander was found six weeks ago, 36 more have been found in one pond, but none in 11 others that have supported them in the past. In the United States, flatwoods salamanders are found only in Florida, South Carolina and Georgia. The adults lay their eggs in wetland depressions...

Experimental shingles vaccine proves effective in nationwide study

...t same area of skin; the rash can take two to four weeks to heal. Anyone who has had chickenpox--which includes most adults in the United States--could develop shingles, though not all will. The two major risk factors are increasing age and declining immunity. Half of all people who live to age 85 will ge...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

...ious disease problems in New Orleans in the coming weeks are likely to be skin and soft-tissue infections, most likely from cuts, abrasions and wounds. The primary culprits will be Staphylococcus and Streptococcus bacteria, both of which can generally be treated with available antibiotics. Diseases caused...

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(Date:9/30/2014)... California, San Diego, have completed the first comprehensive numerical ... uses the pixels in an image as data points ... , The researchers, led by J.S. Chen, the William ... of Engineering at UC San Diego, presented their findings ... conference in Pittsburgh this month. Chen also gave a ...
(Date:9/30/2014)... do seedless watermelon, salmon, and strawberries all have in ... two sets of chromosomes and are diploid, these organisms ... sets of chromosomesseedless watermelon and salmon have 3 and ... While this might seem surprising, in fact most ... first discovered over a century ago, but only recently, ...
(Date:9/30/2014)... and Howard Hughes Medical Institute investigator, and Margarita ... in the 2014 round of grants from the ... (Brain Research through Advancing Innovative Neurotechnologies) Initiative for ... 30, provides more than $3 million in funding ... The BRAIN Initiative, launched last year, is a ...
Breaking Biology News(10 mins):First comprehensive meshfree numerical simulation of skeletal muscle tissue achieved 2Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 2Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 3Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence 4Salk scientists receive $3 million for BRAIN Initiative grant 2
(Date:10/2/2014)... HealthDay Reporter WEDNESDAY, Oct. 1, 2014 (HealthDay News) ... -- may face an increased risk of dying in the next ... 3,000 older Americans, researchers found those who were unable to detect ... times as likely to die in the next five years, versus ... -- the inability to distinguish odors -- was a bigger predictor ...
(Date:10/2/2014)... scientists at The University of Nottingham could lead to ... , A drug resulting from the research, published in ... new hope to sufferers of chronic pain conditions such ... are currently available. , The work, led by Dr ... in collaboration with David Bates, Professor of Oncology in ...
(Date:10/1/2014)... that more than 80 per cent of bowel cancers ... found that medicines called ,JAK inhibitors, halted tumour growth ... present in more than 80 per cent of bowel ... in clinical trials, for diseases including rheumatoid arthritis, psoriasis, ... the second-most common cancer in Australia with nearly 17,000 ...
(Date:10/1/2014)... the Engineering and Physical Sciences Research Council (EPSRC) ... vital industrial control systems which run, for example, ... the rail network. , The research will ... malware infiltrating the systems behind our critical national ... Industrial Control Systems (RITICS), based at Imperial College ...
(Date:10/1/2014)... New research suggests the adage that encourages people to ... target when it comes to exercise. When walking, staying ... distance to it appear shorter and help people walk ... compares this technique to walking while looking around the ... quality of exercise. , "People are less interested in ...
Breaking Medicine News(10 mins):Health News:Could a Fading Sense of Smell Point to Earlier Death? 2Health News:Could a Fading Sense of Smell Point to Earlier Death? 3Health News:Medical discovery first step on path to new painkillers 2Health News:Eighty percent of bowel cancers halted with existing medicines 2Health News:£2.5 million to recognize and reduce cyber-attack threats to critical infrastructure 2Health News:Keeping your eyes on the prize can help with exercise, NYU study finds 2Health News:Keeping your eyes on the prize can help with exercise, NYU study finds 3
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