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Tag: "trouble" at biology news

New RNA polymerase discovered in plants

...ome strange floral defects. The plants were having trouble with organ identity ?stamens tried to turn into petals, for instance. Our first hypothesis was that the fourth polymerase was involved with what are known as micro RNAs, which are known to regulate flower development, but that proved wrong." In a se...

Protein offers way to stop microscopic parasites in their tracks

...like a time bomb that can go off and cause serious trouble when the immune system wanes or is compromised," explains L. David Sibley, Ph.D., professor of molecular microbiology at Washington University School of Medicine. For the study, researchers in Sibley's lab collaborated with Sinisa Urban, Ph.D., assis...

Mice brains shrink during winter, impairing some learning and memory

...an did the long-day mice, indicating they had more trouble learning where the platform was. Moreover, they didn't remember its location as well from one day to the next. However, other tests showed that nonspatial learning and memory, including sensory abilities, were not affected by short days. "It appear...

Purdue scientists may have found key to halting spinal cord damage

...em circulating in your bloodstream," he said. "The trouble is that when free radicals start attacking tissue, it happens in a tiny fraction of a second, after which they are gone. But the acrolein that these attacks release survives in our bodies much longer, for several days at least, and its toxicity is we...

Can't serve an ace? Could be muscle fatigue

...away, as happens to astronauts, and they have real trouble carrying out skilled movements. "In our experiments we found that when the muscles in one arm were fatigued, the effort required to maintain a set arm position was much greater. When asked to keep both arms in a similar position, where one arm was f...

What comes first…the chicken, the egg, or the bad attitude?

...e some body weight to support egg production. "The trouble with this is that these 'martyr birds' may eventually suffer from burnout when they don't balance their own needs well enough," Dr. Renema said. Discovery of the exceptional "super-mom" birds that don't fit the textbook norm has opened new doors in ...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

... surviving in this area because they had the least trouble there," Pimm said. In contrast, hybrid offspring h...uman settlement," Pimm said. "Young males get into trouble whatever species they are." Pimm acknowledged the hybrid panthers are genetically different from pu...

Exercise aside, genes may ultimately dictate seniors' mobility

...compared with their counterparts who do not report trouble walking the distance. And despite the undisputed benefits of exercise, not everyone responds the same, even when they do lead active lives - for reasons that have not been entirely clear. In the current study, researchers assessed seniors in an eff...

Scientists get first glimpse at how plants, most animals repair UV-damaged DNA

...to repair UV damage in human skin, but they've had trouble with the first steps ?replicating the photolyase reaction in the laboratory, and fully understanding it. Zhong hopes his latest study will change that. "Maybe now that we know how light, enzyme, and water work together to control the timing, we can ...

Max Planck researchers make a breakthrough in plant stem cell research

... genes only develop very small meristems, and have trouble growing. The researchers in Tübingen have now discovered the same effect in mutants whose ARR7 gene is constitutively active. Cytokinin can only have its full growth-promoting effect in tissue in which the WUSCHEL regulatory gene is active. "Merist...

Bats use touch receptors on wings to fly, catch prey, study finds

...d making turns normally. "It was obvious they had trouble maintaining elevation on a turn," he said. "Without the hairs, the bats were increasing the curve of their wings too much or not enough." The bats' flight behavior also changed based on the area of the wing where the hairs were removed. For example,...

Unraveling the viral mechanism

...nd it. If you put it away in a heap, then you have trouble using it again. But if you coil the hose orderly, then it is easy to use again. I think the virus does the same thing. The virus genome has to enter the capsid during the birth of the virus and then inject into the cell during infection. It has to co...

A case of mistaken molecular identity

...nown. "We now know that Chagas patients may have trouble seeing at night," said Levin. "And this gives us a...he dark, 37 of 45 (82 percent) Chagas patients had trouble seeing with at least one eye, and 19 of 45 (42 percent) had trouble with both eyes. Matsumoto then a...

Viagra improves high altitude exercise performance up to 45% for some

...nce, physiologists don't know why some people have trouble at altitude and may develop illnesses such as acute mountain sickness or high altitude pulmonary edema while others adapt quickly. Studies like this may help identify some of the underlying differences between people and lead to better treatments. I...

Spinal cord bridge bypasses injury to restore mobility

...nctions to their right side limbs. The animals had trouble moving, climbing or grooming. Combining the old with the new, the researchers grafted a 1.5 centimeter piece of the tibial branch of he sciatic nerve to the C3 area of the spinal cord and allowed the nerve fibers to grow and regenerate over three w...

Science captures the essence of fruit

...ds that can enhance human heath and wellbeing. The trouble is, they don't always taste very good ?and until they do it will be difficult to encourage consumers to make them part of their regular diet," he says. "Adding synthetic flavours destroys the credibility of any health food, so natural flavours prod...

Researcher studies, treats military with 'silent disease'

...ut their health, families, and careers; and having trouble sleeping. Once treatment began, however, they reported that their quality of life had improved. "We've been very surprised. When we asked the patients why (they felt better), they said, 'I'm doing something for my infection,'" Sjogren said. Another...

New dyslexia theory blames 'noise'

...hors previously showed that poor readers also have trouble figuring out categories in simple card games. Other recent studies lend support to the noise exclusion theory. Johannes Ziegler of the Universite de Provence in Marseille, France, was the lead author on a study of dyslexia and auditory noise...

Malaria treatment efficacy compromised in certain HIV-positive patients

... response resulting from HIV infection can lead to trouble when it comes to treating malaria, according to a new study appearing in the Oct. 1 issue of The Journal of Infectious Diseases, now available online. "Our study demonstrates that HIV-1 infected patients with suppressed immunity represent, next to c...

Mysterious 'neural noise' actually primes brain for peak performance

... As you reach your decision, you'd have a lot of trouble articulating most of the variables your brain just processed for you. Similarly, intuition may be less a burst of insight than a rough consensus among your neurons. Pouget and his team are now expanding their findings across the entire cortex, beca...

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Breaking Biology News(10 mins):Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3
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Breaking Medicine News(10 mins):Health News:Experimental Infertility Treatment Seems Effective, Cheaper 2Health News:Experimental Infertility Treatment Seems Effective, Cheaper 3Health News:Experimental Infertility Treatment Seems Effective, Cheaper 4Health News:U.S. Cameraman Treated for Ebola 'Free' of the Virus 2Health News:U.S. Cameraman Treated for Ebola 'Free' of the Virus 3Health News:Allegheny General Hospital Introduces New, Beating-Heart Procedure for Mitral Valve Repair 2Health News:Allegheny General Hospital Introduces New, Beating-Heart Procedure for Mitral Valve Repair 3Health News:OhioHealth Welcomes New Women’s Health Specialist to MaternOhio Specialists in Obstetrics & Gynecology of Columbus, Inc. 2Health News:OhioHealth Welcomes New Women’s Health Specialist to MaternOhio Specialists in Obstetrics & Gynecology of Columbus, Inc. 3Health News:Ovarian Cancer Survivor Mrs. Maryland Urges Media to Think Outside the Bra 2Health News:Ovarian Cancer Survivor Mrs. Maryland Urges Media to Think Outside the Bra 3
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