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Tag: "extreme" at biology news

New gene linked to bipolar disorder

.... People with bipolar disorder may also experience extreme mood highs, overactivity, increased libido, sleeplessness and grandiose delusions....

Vaccine-producing 'plant-factories'

... proteins resisted high temperatures and withstood extreme conditions, characteristics of glycosylate proteins. The discovery was unexpected because the literature written to date does not contemplate the presence of this type of protein in the chloroplast. Once the presence of this type of protein in the...

Record ozone loss during 2006 over South Pole

...e stratosphere combined with sunlight. This year's extreme loss of ozone can be explained by the temperatures above Antarctica reaching the lowest recorded in the area since 1979," ESA Atmospheric Engineer Claus Zehner said. Ozone is a protective layer found about 25 kilometres above us mostly in the stratos...

Unique gene regulation gives chilly bugs survival advantage at bottom of the world

...eins, but normally they only do so during times of extreme physical stress. Curiously, adult midges don't exp...hese proteins all the time ?only during periods of extreme environmental stress. Yet when most insects express stress proteins, it temporarily compromises the ...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...what made this particular method unique is not the extreme power of the magnet, which at 600 megahertz is fairly standard, but the extreme sensitivity of the probe - the component that is inserted into the magnet to obtain chemical informa...

HIV dementia alarmingly high in Africa

...ities that interfere with normal daily life and in extreme cases lead to total disability and a bedridden state. Unlike Alzheimer’s- and stroke-induced dementia, HIV dementia is treatable and potentially reversible with the same antiretroviral medication that is used to treat the infection. Treatment can eve...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

...ssful SENTINEL bushfire tracking system. While extreme coastal events have been captured by remote sensing before, this is the first time they can be seen and analysed straight after the event as there are now more satellites imaging the Earth and CSIRO has invested in fast information delivery systems. ...

New insights into autoimmunity and depression

...oimmune disease marked by joint pain, skin rashes, extreme fatigue, and depression, among other symptoms. Some studies have described a possible link between SLE’s most severe psychiatric manifestation, psychosis, and a protein autoantibody associated with the central nervous system, anti-ribosomal P. To ...

Fruit flies and global warming -- Some like it hot

...iscovered ways in which fruit flies might react to extreme fluctuations in temperature. Short-term exposure to high heat stress ("heat hardening") has been known to have negative effects on Drosophila. But Loeschcke and Hoffmann discovered that it can have advantages too. Flies exposed to heat hardening were...

'Hidden-hero' microbes in soil, water may help naturally clean toxic sites

...for drinking, and contaminated aquifers tend to be extreme environments where microorganisms dominate. These microbes are the 'hidden heroes' that do the work of bioremediation. Our new project will provide the basic science necessary to deploy bioremediation technologies at the scales necessary for them to ...

Scientists identify specific enzymes that make meningitis hard to fight

...nd are difficult to treat - sometimes resulting in extreme measures such as limb amputation. When the meningitis bacteria enter the bloodstream, the body's natural defences send white blood cells to fight the infection. They ingest the bacteria and subject them to oxidative stress. Oxidative stress damag...

Largest genomic search finds genes that may contribute to autism

...p social relationships. It is often accompanied by extreme behavior challenges. Autism Spectrum Disorders are diagnosed in one of 166 children in the United States and affect four times as many boys as girls. "These findings are a piece of the puzzle. As we identify these genes we will be able to screen...

The desert is dying

...e almost no new trees have been recruited. Despite extreme aridity the main cause of tree mortality seems not to be climate, but commercial charcoal production. This indicates that the traditional and sustainable indigenous resource management, which desert people have developed through millennia, is changin...

Warming oceans threaten Antarctic glaciers

...ite instrumentation from which it is derived: "The extreme precision with which we can now make measurements of the Earth’s surface allows us to see the increasingly subtle changes within the ice sheets that will govern their future sea level contribution."...

New biofuels process promises to meet all US transportation needs

...d fuels from coal," Agrawal aid. "This would place extreme demands on the carbon dioxide capture, storage and monitoring systems." The new process also would be more practical than all-electric or hydrogen-powered cars, in part because of the limited storage capacity of batteries and hydrogen storage tank...

Autism gene identified by researchers at Yale working with a global research consortium

... social relationships, and is often accompanied by extreme behavioral challenges. Autism Spectrum Disorders are diagnosed in one in 150 children in the United States, affecting four times as many boys as girls. The diagnosis of autism has increased tenfold in the last decade. Phase Two of the Autism Genom...

Fighting influenza & co. with 40,000 blood samples

...he disease was not only exceptional because of its extreme virulence. The patho-gen, the influenza virus subtype A/H1N1, homed in on women and men in the prime of their lives. 'Normally respiratory diseases are dangerous for children and the over-60s,' the project coordinator Dr. Oliver Schildgen explains. '...

Remote sheep population resists genetic drift

...genetic toes, so to speak." He argues that the extreme conditions on the craggy, windswept island have prevented genetic drift due to the premium advantage the more genetically diverse mouflon on the island hold over their less genetically diverse cousins. "This herd certainly challenges our understa...

How trees manage water in arid environments

... to the National Climatic Data Center. Moderate to extreme drought conditions were evident in about 40 percen...during a three-year period during which there were extreme drought conditions in the semi-arid southwestern United States." Brown's measurements showed that...

Metacognition: Faced with a test, rats can check their knowledge first

...—a relatively easy choice if the noise fell to one extreme or another (for example, 8 seconds), but a difficult choice if the noise happened to be of more intermediate length (for example, 4.4 seconds). But prior to the time-discrimination test, rats were given a choice of whether to take the test at all by ...

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