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Tag: "problem" at biology news

DNA repair proteins monitored at double-strand break

... Cancer Center director. "Our approach solved that problem and allowed us to document the cell’s response to double-strand DNA breaks over time. The technique provides significantly more information about the proteins that repair DNA than is possible using the standard microscope-based approach previously us...

DOE JGI sets 'gold standard' for metagenomic data analysis

...Head, said that, to evaluate the magnitude of this problem and identify the inherent pitfalls, "we have const...oduct for your particular needs." Another major problem with metagenomes is binning. Binning is the process of identifying from what organism a particular ...

Palau's coral reefs show differential habitat recovery following the 1998 bleaching event

... temperatures. "The rare piece of good news in the problem of climate change is that good local management practices might aid recovery of coral reefs." Van Woesik, a professor of biological sciences at Florida Institute of Technology, examined the recovery rates of reefs in Palau during thre...

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

...s of fine sediment into the water column—a serious problem for vent organisms that feed by filtering the water in their habitat. The process will also raise the concentrated nutrients from the deep sea to the relatively nutrient-poor surface waters of the ocean, causing algal blooms and potentially conta...

Sleep quantity affects morning testosterone levels in older men

...t have a sleep disorder are urged to discuss their problem with their primary care physician, who will issue a referral to a sleep specialist. ...

Get a whiff of this: Smell test could sniff out serious health problems

...Does this smell like tar, or roses??Once there’s a problem with memory, this kind of test would be difficult.? So what does it mean if a child, or someone unlikely to have an age-related disease, flunks the sniff test? “If they fail our test, that’s a pretty good indication that there’s something wrong wit...

Man's best friend lends insight into human evolution

...port the hypothesis that evolution in human social problem solving, much like that of dog social problem solving, occurred after changes in our species' social emotions lifted social constraints." ...

Deconstructing brain wiring, one neuron at a time

...fer us an unprecedented view of the brain." The problem neuroscientists are confronted with "is akin to a computer user who tries to figure out how the machine's electronic chip works by looking down at it; there is no way to figure out how things are connected," Callaway says. "If you were given a wiring...

It's never too late to get it back! Aging interrupted

...ngevity effects without the low calorie diet. The problem is to find a way to rapidly identify these drugs. Professor Spindler and his colleagues are examining the gene expression patterns which are induced by low calorie diets, and looking for drugs which mimic these changes. They are searching for drugs...

Scientists see DNA get 'sunburned' for the first time

...hinks the results might make scientists attack the problem of UV damage in a new way. DNA in a cell is always moving, he explained. It bends and twists one way or another because it is a relatively flexible molecule. This flexibility enables the normal chemical reactions that are constantly happening in t...

Tundra disappearing at rapid rate

... habitats are forced to move upwards as well. "The problem is that in mountainous areas you can only go so high so they get forced into smaller and smaller areas," said Danby. These changes are of particular importance in these northern regions where First Nation people still rely heavily on the land, sa...

Scientists genetically engineer tomatoes with enhanced folate content

...own as folic acid. Folate deficiencies remain a problem in many underdeveloped countries, however, where a... said. "Theoretically, you could bypass this whole problem by ensuring that the folate is already present in the food." Will doctors be recommending a healt...

Red flag for repetitive stress injuries identified for first time in humans

...' main goal has been finding a means to detect the problem before the damage starts. That way, conservative intervention ?ibuprofen, rest breaks at work, exercise ?can be evaluated as to their effectiveness in preventing the development of chronic work-related conditions and, consequently, the need for more ...

Mechanism of nicotine's learning effects explored

...d attention-deficit/hyperactivity disorder. A key problem in designing such drugs has been that little was known about the detailed mechanism by which nicotine exerts its learning-enhancing effects. Now, researchers have discovered important details of how nicotine adjusts the signaling properties of neu...

Allergy to hair dye increasing

...y, allergic reactions to PPD became such a serious problem that it was banned from hair dyes in Germany, France, and Sweden. Current European Union legislation allows PPD to comprise up to 6% of the constituents of hair dyes on the consumer market, but no satisfactory or widely accepted alternatives to th...

LIAI completes world's most comprehensive analysis on influenza virus data

... research was analyzed first due to the continuing problem of seasonal influenza and public health concerns over the possible spread of the H5N1 avian flu. "The database marks the first time that all known antibody and T cell epitope information has been compiled in one place," said Sette, noting the searc...

Woman's Day and For Womens of Science

...ylmercury exposure now constitutes a public health problem in most regions of the world. Methylmercury levels in fish-eating birds and mammals in some parts of the world are reaching toxic levels, which may lead to population declines in these species and possibly in fish populations as well. "The p...

Mercury contamination of fish warrants worldwide public warning

...ylmercury exposure now constitutes a public health problem in most regions of the world. Methylmercury levels in fish-eating birds and mammals in some parts of the world are reaching toxic levels, which may lead to population declines in these species and possibly in fish populations as well. "The p...

Scientists learn the origin of rogue B cells

...rve as receptors on the surface of B cells. The problem occurs when the random cutting and splicing of immunoglobulin genes results in an antibody that recognizes a component of one's own body. While the body has a built-in mechanism to correct these errant cells, the NIAMS researchers discovered this doe...

3-D ultrasound identifies women at risk for impending preterm birth

...rancisco. Preterm birth is a major public health problem with lasting repercussions on families and society. The authors found that the ultrasound measurements could identify a preterm risk of delivery within five days of the measurement. "Our results suggest that examining the fetal adrenal gland at th...

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