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Tag: "individual" at biology news

Antarctic icebergs -- Hotspots of ocean life

...ried out the most comprehensive study ever done of individual icebergs and their immediate environment, taking a wide array of measurements – physical, biological and chemical, and using satellite images provided by NASA. At the same time, the wealth of data brought new challenges in how to manage this aval...

Putting feelings into words produces therapeutic effects in the brain

...ed that while the amygdala was less active when an individual labeled the feeling, another region of the brain w...s on your emotional responses.” As a result, an individual may feel less angry or less sad. This is ancient wisdom,” Lieberman said. “Putting our feelings i...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...hers might remove thousands of donor cells from an individual and grow them in the laboratory into billions of cells, Denner explained. Then, for a person with type 1 diabetes, researchers might engineer these cells to become islets of Langerhans, the cellular masses that produce the hormone insulin, which allo...

Want to save polar bears? Follow the ice

...udies, which typically focused on either observing individual bears or following them with satellite collars, often at great cost and risk to bears and researchers alike. Polar bears rely on seasonal sea ice for stalking their principal prey—ringed and bearded seals. Without the ice, the bears generally ca...

Philandering female felines forgo fidelity

...re then subjected to genetic testing. By comparing individual genetic micro-satellites from 171 samples, researchers not only were able to determine if more than one father contributed to a litter, but also which of the known male cheetahs in the study area had sired cubs. Surprisingly, few known males had, wit...

Arctic ice retreating more quickly than computer models project

...2006. The fastest rate of September retreat in any individual model was 5.4 percent per decade. (September marks the yearly minimum of sea ice in the Arctic.) But newly available data sets, blending early aircraft and ship reports with more recent satellite measurements that are considered more reliable than th...

Mice with a migraine show signs of brain damage

...own as dendritic spines ?the tiny extensions of an individual neuron’s body that usually number in the thousands within a synapse. Mice in the grasp of a migraine lost up to three-quarters of these important cellular components. Ironically, the team found that during CSD, even though blood flow in the brain ...

Catching cancer's spread by watching hemoglobin

...researchers can capture snapshots of blood flow in individual vessels. Moving beyond mere imaging, the technique can detect the difference between oxygen-carrying hemoglobin (oxyhemoglobin) and oxygen-lacking hemoglobin (deoxyhemoglobin). This is important for monitoring tumors, because the oxygenation state ar...

'Personality-gene' makes songbirds curious

...u are an anxious type, or a fearless person - such individual differences in personality could be partly due to the genes you carry. In humans, it is hard to prove the existence of such "personality genes" - there are simply too many factors that influence human behaviour and these factors are hard to control e...

US control strategies may make flu epidemics worse, UCLA study shows

...lf of all the other household members, there is no individual decision-making, and adaptability is decreased. ...tability. "We assume that the decision of each individual is based upon self-interest, that people wish to avoid coming down with the flu, preferably without ...

A frown or a smile? Children with autism can't discern

... of that expression to the individual. It cues the individual to what is significant,?Davies said. While the results show the key role of eye gaze in signaling communicative intent, it also shows that autistic children, even when gazing directly into someone’s eyes, don’t recognize visual cues and don’t pro...

Brain's white matter -- More 'talkative' than once thought

...e Johns Hopkins researchers measured activity from individual precursor cells in the corpus callosum, a region of white matter that connects the two brain hemispheres. To their surprise, OPCs were found to have electrical signals produced by the neurotransmitter glutamate, similar to the signals used as the pri...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...of anyone ever doing that," Southwick said. "In an individual cell, you can't figure out where the actin is assembling and what's controlling it. But Listeria seems to use the same pathways that a cell uses to crawl. So anything that blocks Listeria we predict would also block neutrophils from crawling. And tha...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

...ned separately, again at a fraction of the cost of individual scans. The researchers then zeroed in on the gene variations that occurred more often in the people with bipolar disorder and examined them individually. An important issue in genetics research is that findings correlating specific genes with spe...

Automatic identification of protein's critical features from the structure

...ut is it really possible to tell the essence of an individual from its form? The answer to that question seems to be related to fashion and glamour, yet a group of scientists from the Universidad Nacional Autonoma de Mexico and the Buck Institute in the USA, were able to address it, although motivated by other ...

World's leading scientists announce creation of 'Encyclopedia of Life'

...m our normal vision." Scientists began creating individual web pages for species in the 1990s. However, Internet technology needed to mature to allow fast and efficient creation of a comprehensive Encyclopedia. While specific Encyclopedia of Life efforts, including the scanning of key research publications...

Magnetic computer sensors may help study biomolecules

...hose in computers also might be used to manipulate individual strands of DNA for high-speed applications such as...oiling, or capturing and sorting, large numbers of individual biomolecules simultaneously for massively parallel medical and forensic studies—a sort of magnetic r...

Asexual worm quickly adapts to soil contamination

...f different pH and copper values. As well as their individual effects, the pH and the copper levels in the soil can exert a synergistic effect on the nematode population. Unexpectedly fast adaptation was observed and considerable genetic changes took place. As a result of this the nematodes in the polluted soil...

Heavy multivitamin use may be linked to advanced prostate cancer

...itamins were also more likely to take a variety of individual supplements, we were unable to identify or quantify individual components responsible for the associations that we observed,?the authors write. In an accompany...

Chemical maps hint at drug's effects on schizophrenia

...s overall health and gain information about how an individual is responding to a particular therapy." In a report presented Friday, May 18, at the Society of Biological Psychiatry annual meeting, in San Diego, Kaddurah-Daouk said that chemical signatures measured by metabolomics were different for schizophre...

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