Tag: "sensitive" at biology news

Researchers discover way to make cells in the eye sensitive to light

Researchers have discovered a way to make light sensitive cells in the eye by switching on a single gene. A...light responsive. They found that as well as being sensitive to blue light, melanopsin uses light at different wavelengths to regenerate itself. In some forms of...

UCLA researchers detail the evolution of quantum dot imaging in the journal Science

...their function and test whether or not they may be sensitive to outside molecules. Such studies would provide new clues about molecularly targeted therapies that could be effective in fighting cancer. Before qdots, researchers were able to track individual receptors and proteins on cell surfaces for seconds on...

National Academy of Engineering announces million-dollar challenge to provide safe drinking water

...mmonly in the hands and legs, which are especially sensitive to arsenic. Affected people can have difficulty working or even walking, and continued exposure can lead to liver failure, kidney failure, cancer, or the loss of arms or legs. The goal of the Grainger Challenge Prize is to encourage the developmen...

Heart specialists call for cardiovascular screening for all young competitive athletes

...The Italian screening method has proven to be more sensitive than the limited US protocol. ECG is abnormal in up to 95% of patients with hypertropic cardiomyopathy (HCM), which is the leading cause of sudden death in an athlete. ECG abnormalities have also been documented in the majority of athletes who died f...

Marsh-dwelling mole gives new meaning to the term 'fast food'

... its nose have a much larger surface area than the sensitive area of an ordinary mole nose. The flexible fingers also allow the star-nose to tap objects in its environment at a faster rate. These advantages mean that the star-nosed mole can find 14 times as many small prey animals in a given period of search t...

Drought reduces nitrogen-fixing in legumes

... and crop production. This process is particularly sensitive to adverse environmental conditions, such as water stress or drought. This is why Mara Dolores Glvez's PhD was aimed at investigating how the regulation of biological nitrogen-fixing is carried out under drought conditions. The reduction of atmosphe...

Children's taste sensitivity and food choices influenced by taste gene

...s with two bitter-sensitive alleles (PP) were more sensitive to bitter taste than those with just one (AP). G...als with the mixed AP genotype, children were more sensitive to bitter than adults, with 64% of children but only 43% of adults able to detect bitterness in the ...

When cobras spit, there's not a dry eye in the house

...barrel of a gun. If they manage to hit an eye, the sensitive cornea reacts with severe stinging pain. In the worst case these burns can ultimately lead to blindness. As guinea pigs Katja Tzschtzsch used four Mozambique and six black-necked spitting cobras from the animal house in Schloss Poppelsdorf. In her ex...

Bird brains show how trial and error may contribute to learning

...e usually too subtle for human ears, Kao said, but sensitive recording equipment can detect them. The systematic trials were possible with the aid of a computer program that could track the bird twitters and trigger stimulations to LMAN at precise moments to elicit measurable effects on a predetermined syllabl...

Novel 'canary on a chip' sensor measures tiny changes in cell volume; Provides assay results

...are encased for testing. "The new technique is so sensitive it can detect changes in cell dimensions never seen before in living cells," she said. "The necessary power can be supplied even by a watch battery and the sensor is so small it could fit into a pencil eraser." Sachs said the assay can be used on an...

Study methods, strains of Pfiesteria are both critical in determining organism's toxicity

... and a scientist at Old Dominion University. "More sensitive tests for the chemical toxin itself would be neede...n any arsenic? Surely not such a test wouldn't be sensitive enough to detect levels of arsenic that were too low to cause sudden illness or death, but still wer...

U of T researcher links schizophrenia, gene mutations

...s can still cause those receptors to become highly sensitive to their own dopamine, a condition that leads to psychosis. By examining brain tissue from mice with various gene mutations, the researchers determined that the brain appears to compensate for the altered gene by becoming supersensitive to dopamine...

Alcohol's effects on gene expression in the central nervous system

...ies with humans indicate that this brain region is sensitive to the effects of heavy alcohol drinking and repeated withdrawals. The microarray technique provides insight into cellular changes that occur over time with chronic alcohol drinking and repeated withdrawals." Collectively speaking, added McBride, fi...

Tree-ring data reveals multiyear droughts unlike any in recent memory

...n experienced drought. Tree growth is particularly sensitive to winter snow pack, which is also the main driver of stream flow in the Columbia. The scientists first related tree-ring data to stream-flow records since 1931, then considered the implications for flows of tree-ring data back to 1750, much of the t...

'Blips' in HIV treatment are not cause for alarm

... drug resistance is that genotyping tests are only sensitive down to levels of about 1,000 copies per milliliter. So, without the ability to test for resistance at 120 copies, clinicians are left in the dark about the significance of the blips with regard to resistance, Siliciano said. Siliciano and his collea...

Certain genetic test helps detect mutations that may be missed by conventional DNA test

...ids prior to mutation screening, represents a more sensitive mutation detection method than conventional DNA sequencing for identifying such mutations. There have been no studies comparing the relative accuracy and specificity of conversion analysis with other mutation testing methods in a rigorous way, which ...

Columbia scientists identify potential therapy for kidney failure

...The two groups independently showed that Ngal is a sensitive marker of renal failure and after extensive studies with mice, the two independently found that Ngal was protective. "Given the fact that Ngal expression is conserved in mice, rats, and human kidneys after damage, we are hopeful that the protein wil...

Educators in Pennsylvania and North Carolina earn top 2004 Mentoring Awards from AAAS

... Laura Novak, Ph.D., added that Hughes "is acutely sensitive to the difficulties of graduate school in the mathematical sciences, particularly those encountered by women with liberal arts backgrounds." Hughes earned her Ph.D. in Mathematics from the University of Illinois at Chicago. The AAAS Mentor Award fo...

Brain controls robot arm in monkey, University of Pittsburgh researcher reports at AAAS

... that fire like Geiger counters. These neurons are sensitive to movement in different directions. The direction in which a neuron fires fastest is called its "preferred direction." For each arm movement, no matter how subtle, thousands of motor cortical cells change their firing rate, and collectively, that si...

New cyber security protocol for online banking, and more

...g of credit card numbers, bank passwords and other sensitive information for those who surf the Internet using ...mail points to a fake website set up to steal your sensitive information, such as passwords and PINs to bank accounts, credit cards numbers and account numbers f...

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(Date:10/16/2014)... have a new synthesis of recent research findings to ... in the two states. , The Ecology and ... Washington: A Synthesis of the Relevant Biophysical Science and ... published by the U.S. Forest Service,s Pacific Northwest Research ... managers for a synthesis of the large body of ...
(Date:10/16/2014)... NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market announces ... the Smart Wallet, at the 13 th annual ... global conference on the intersection of technology and the ... , founder and publisher of the Strategic News Service™, ...
(Date:10/15/2014)... is spreading rapidly and to an unexpected extent. The ... past and the virus shows a new disease dynamic ... For this reason, the German National Academy of Sciences ... Engineering, and the Union of the German Academies of ... Ebola epidemic today. , In the statement the academies ...
Breaking Biology News(10 mins):New report synthesizes best available science on management of moist mixed-conifer forests 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5
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