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Tag: "always" at biology news

New design : complete

...mselves." In addition popular sports drinks don't always include enough sodium to offset the body's loss of the mineral during exercise. The drinks often carry more water with smaller concentrations of salts than are normally found in the human body; therefore, they do not replace salts adequately, said Dr...

Stealth Worms May Improve Insect Pest Control

... a geographic region to affect similar hosts. "We always look at the insect and nematode interactions in the laboratory first, then go out and look at the crops and environment," Stock says. Some of her work involves comparing commercially available formulations of nematodes with custom- made applications ...

Radio-tracking associated with 'dramatic shift' in water vole sex ratio

...t fundamentally affect the biology of the subjects always requires careful checking. This study emphasises that the effects of commonplace wildlife marking and tracking techniques may be difficult to detect and yet both important and revealing. Clearly, it is both scientifically and ethically important to b...

Researchers find gene that may be at root of potato blight

...t reduces the profit margins of farmers and is not always successful. "In developing countries, late blight also affects subsistence potato production," he continued. For example, a late blight breakout in 2003 brought potato production to a halt in Papua New Guinea , one of the few countries in the world ...

Alcohol consumption disrupts breastfeeding hormones

...ng pregnancy, when alcohol consumed at any time is always passed onto the fetus, a lactating woman who drinks occasionally can wait a few hours after she stops drinking to breastfeed so that her infant is not exposed to the alcohol in her milk. However, she needs to be aware that the hormones underlying lac...

Atmosphere may cleanse itself better than previously thought

...ants, which generate smog. But these models do not always function well, Francisco said, in part because OH ...d as the information we put into them, and we must always keep a cautious perspective about the results models return," he said. "Sometimes things are happeni...

U. Iowa researchers improve Huntington's disease symptoms in mice

... neurodegenerative disease that is progressive and always fatal. The disease-causing gene produces a protein that is toxic to certain brain cells, and the subsequent neuronal damage leads to the movement disorders, psychiatric disturbances and cognitive decline that characterize this disease. "Many of the ...

Researchers pioneer new gene therapy technique using natural repair process

...nts can be used to treat the disease, they are not always successful. "SCID is ideal for this sort of therapy because you only need to correct the defect in a small number of immune cells to fix the problem," said Dr. Porteus, assistant professor of pediatrics and biochemistry at UT Southwestern. "This is ...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...p during this period, but unlike all other mammals always manages more sleep than her busy newborns. The newborns and mothers gradually increase sleep over a period of months until they reach normal adult levels. As the newborns grow, neither mothers nor offspring show counterbalancing increases in rest tha...

Alien woodwasp, threat to US pine trees, found in N.Y.

...agencies and scholars over the past 25 years. "I'm always on the lookout for exotics -- for any species that are not yet established in the United States and known to be potential pests." He published a report on his discovery in a recent issue of the Newsletter of the Michigan Entomological Society (50: 2...

Hopkins AIDS experts issue warning about global efforts to provide drug therapies

... often the most likely to benefit from it, but not always in greatest medical need of surgery. Due to public pressure, the allocation system was revised to put first the most urgent cases, not those who stood the chance of living the longest. Similarly, previous studies have recommended that the most severe...

Researchers reveal secrets of flying snakes

...ding, these snakes make turns up to 90 degrees and always seemed to land without injury. The researchers now are looking more closely at the aerodynamic issues. They plan to use physical and computer models to study the more complex kinematics of these gliders. To collect and study these snakes, Socha tra...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

... by one or two guys going out in the woods, almost always without a permit and on somebody else's land, cutting down a tree or two, chopping it up, lighting it, covering it with dirt, and then hovering around it for two to four days while it becomes charcoal," Kammen said. "It's no surprise it's not general...

Immune system's distress signal tells bacteria when to strike back

..., said Alverdy, that germs such as Pseudomonas are always "probing for a weakness in the host and are ready and willing to strike whenever they find one." He and his colleagues, however, are testing an alternative theory: that "bacteria are perfectly content in their niche until signals from the host ?usual...

Enzyme's newly discovered role may make it target for arthritis treatment

...lls. "The contributions of the neutrophil weren't always appreciated by scientists," Pham notes. "When patients come to their doctors with arthritis symptoms, the inflammation typically is so well-established that neutrophils are no longer the predominant cell type." Animal models of inflammation let scie...

Study finds adult stem cells can replicate

...lls. "The contributions of the neutrophil weren't always appreciated by scientists," Pham notes. "When patients come to their doctors with arthritis symptoms, the inflammation typically is so well-established that neutrophils are no longer the predominant cell type." Animal models of inflammation let scie...

Diabetic nerve therapy shows 'striking' results

...Progression to amputation is not inevitable but is always a threat. Problems may also occur in other organs, including the heart, kidneys, sex organs, eyes and digestive tract. The incidence of diabetes, a condition in which the amount of glucose in the blood is too high, is increasing dramatically, with ...

Bioinformatics reveals new gene regulation system

...of Nrd genes. The team observed that their signal always overlapped with the promoter signal, the region of DNA required for the initiation of the conversion of gene to protein. Molecules that promote transcription recognize and bind to this sequence, which lies just outside of the gene. Repressor signals ...

Using nanoparticles, in vivo gene therapy activates brain stem cells

...g human diseases." Viral vectors for gene therapy always carry with them the potential to revert back to wild-type, and some human trials have even resulted in fatalities. As a result, new research focuses increasingly on non-viral vectors, which don't carry this risk. Viral vectors can be produced only ...

Modified collagen could yield important medical applications

...und and form scar tissue. But this property is not always desirable; a clot can be dangerous inside a blood vessel or at certain injury sites, where scar tissue can interfere with the formation of new nerve connections. Modified collagen can follow a different course. In their recent journal paper, Yu and ...

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