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Tag: "faster" at biology news

Encoded metallic nanowires reveal bioweapons

...instead in a suspension, which makes them run much faster and more accurately. If nickel stripes are also added to the ends of the wires, they can then be magnetically separated out during the required washing steps--a prerequisite for a portable microbiodetector. ...

Breaks in hibernation help fight bugs

... growth depends on temperature. Most bacteria grow faster when it is warm and much slower when it is cold. For animals exposed to Salmonella, which multiplies rapidly in warm temperature, a regular break in hibernation would be an important adaptation to combat the germs, when experiencing a warmer winter. ...

New egg freezing technique offers hope to hundreds of women

...men, whereby women's supplies of eggs decline at a faster rate than men's supplies of sperm." Dr Chamayou, scientific director of the Unita di Medicina Della Riproduzione, Fondazione HERA, Catania, Italy, told the conference that Italy had banned embryo and zygote freezing in 2004, and any embryos created...

Septum keeps neurons in synch, can reduce epileptic seizures by 90 percent

... control group. In effect, the theta rhythm became faster and more jittery. Also, the septal neurons of epileptic rats doubled their firing rates in relation to the controls, from about 14 spikes per second to about 29 spikes per second. Two promising lines of research Colom and his fellow researchers ...

Mass. General study finds potential ovarian cancer stem cells

...mice, they led to the formation of new tumors much faster than did injections of regular tumor cells. Although the potential ovarian cancer stem cells were less responsive than regular tumor cells to in vitro treatment with the chemotherapy drug doxorubicin, the stem-like cells remained sensitive to re...

Finding a better way to make biodiesel

...chemical reactions take place. The results include faster conversion to biodiesel, a catalyst that can be recycled and elimination of the wash step in the production process. Lin's particles can also be used as a catalyst to efficiently convert animal fats into biodiesel by creating a mixed oxide catalyst...

Bones hold the key to blood renewal

... bone, for instance, the osteoclasts demolish bone faster than it is built up. This study suggests the effects of such an imbalance may reach well beyond the bone. ...

Mitochondrial DNA sequencing tool updated

...tories to resequence the mitochondrial genome much faster than the traditional manual and automated strategies. Just as importantly, like an iPod to music lover, the chip served as the broad technological platform for laboratories to customize arrays more attuned to their research interests. In 2004, Dr....

New MRI technique quickly builds 3-D images of knees

A faster magnetic resonance imaging (MRI) data-acquisition ...eloped at the University of Wisconsin-Madison, the faster technique will enable clinics to image more patients - particularly the burgeoning group of older ad...

Purdue creates new low-cost system to detect bacteria

...r they have grown in a petri dish. The analysis is faster than any other methods in existence, and it's simple." The technique might be used to identify staph infections that are resistant to antibiotics. "This is an extremely dangerous infection, and you want to catch it as early as possible," Robinson...

In-home sensors spot dementia signs in elderly

...o perform well during doctor visits make them walk faster than their normal daily paces, masking changes that may be clinically relevant, researchers say. Hayes and her colleagues predict that as healthy elders begin to develop cognitive impairment, they become more variable day to day or even hour to hou...

NASA study solves ocean plant mystery

...y really are. Normally, greener plants are growing faster than less green plants. When iron is lacking, enhanced greenness does not mean phytoplankton are growing better. They are actually under stress and unhealthy. These conclusions solved the mystery why healthy looking phytoplankton are actually not so ...

Northern birds are fatter!

...he further birds migrate north for the summer, the faster they put on weight", says Dr Williams (Simon Fraser University, Canada) who has been tracking migrating birds for several years. "This research may have implications for the designation of protected areas which will ensure birds can complete their sp...

'Scent of a woman' tells male redback spiders to find a mate

...ssue of Current Biology reports that males develop faster based on the population density of males and females around them -- the first time such a phenomenon has been shown in any animal. "It shows that males are really tracking the selection pressures that they're facing in an environment -- they're awar...

Suicide risk does not increase when adults start using antidepressants, study finds

... that newer antidepressants were associated with a faster decline in rates of suicidal behavior than older drugs. Adolescents in the study had more suicide attempts than adults. The researchers found that the rate for the first six months of antidepressant treatment was 314 attempts per 100,000 in teens an...

New weapon in battle against osteoporosis

...vant mutation, so the results promise improved and faster diagnosis. Second, they have drawn attention to a previously unknown regulatory mechanism, making it a focus of osteoporosis research. Here lies the chance of developing new medicines in the long-term. ...

Taipan venom no snake oil

...n their livers. "Snakes produce a more stable and faster acting form of Factor X in their venom which is the only source of Factor X other than mammalian livers," he said. "They have developed the ability to deliver massive fatal doses of Factor X to specifically target the systems ofmammals." Dr St Pier...

Loosen leash on cancer protein 'watchdog,' researchers say

...over, there was no sign that the mice had aged any faster than normal. "We checked for the sort of characteristics that the elderly of many mammal species typically show - thinner skin, lower bone density, spinal hunching and the like," Mendrysa said. "We couldn't find any differences between them and norm...

Higher carbon dioxide, lack of nitrogen limit plant growth

...at atmospheric carbon dioxide levels may rise even faster than anticipated, because ecosystems likely will not store as much carbon as had been predicted," said Peter Reich of the University of Minnesota, lead author of the study, which was conducted at the National Science Foundation (NSF)'s Cedar Creek Lo...

Robot assisted surgery more accurate than conventional surgery

...e procedures without the risks of error, providing faster recovery and better functional outcomes for patients." The study involved both surgeons and engineers from Imperial College, with medical robotics engineers designing the Acrobot prototype, and surgeons testing it. Professor Cobb added: "This study...

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