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Dehydration in Biological News

Microfossils challenge prevailing views of the effects of 'Snowball Earth' glaciations on life

... billion years ago, and are very different in appearance from the overlying rocks." The scientists braved extreme sun, rattlesnakes, scorpions, and dehydration to gather their data. They traveled by foot, helicopter, and river rafts, the last of which capsized on one occasion although the samples remained ...

Synthesizing the most natural of all skin creams

... which shows the same structure and unique properties. As well as helping pre-term babies develop essential protection against temperature changes, dehydration and infection, artificial VC could also benefit sufferers of skin disease. Like most moisturising creams, VC is mostly water. Its outstanding ...

Updated formula measures kidney function more accurately

... apply to children and infants with higher levels of kidney function, so that any harm that might come from antibiotics, chemotherapeutic drugs and dehydration can be minimized in these populations as well." ...

Global warming threatens Australia's iconic kangaroos

... pasture for grazing and waterholes may dry up," the authors write. "This may result in starvation and failed reproduction or possible death due to dehydration for those species that are less mobile." And although kangaroo species may be mobile enough to relocate as the climate changes, the vegetation and ...

Integrins as receptors give insight into rotavirus and diarrhea

... is one of the most common causes of diarrhea, resulting in approximately 3 million cases of diarrhea and 55,000 hospitalizations for diarrhea and dehydration in children under the age of 5 each year in the United States alone. Worldwide, it causes nearly half a million deaths each year. Finding out how ...

Rocky water source

... and faster still at 100 degrees. So in deserts - where there is abundant sunlight - it is very easy to do." van der Gaag points out that the dehydration of gypsum results in a material of much lower volume than the original mineral, so the very process of releasing water from the rock will cause local ...

Moss is a super model for feeding the hungry

... thick, these early plants had to adapt to withstand cold, heat and drought without roots or complex leaves. The ability of mosses to survive severe dehydration and then regrow when watered could be of enormous use in crops grown in drought-stricken areas of the developing world. Scientists from the ...

Runners -- Let thirst be your guide

... says. “So, really, if people just do things in moderation, especially including re-hydrating by drinking, they’re not going to be at risk of either dehydration from excessive sweat losses or EAH from excessive fluid ...

For many insects, winter survival is in the genes

... "But insects make these very same stress proteins during times of low temperature as well as during exposure to high levels of toxic chemicals, dehydration and even desiccation," Denlinger said. He and his colleagues first figured out how many genes were turned on only during the flesh fly's dormant ...

Novel therapy combinations gain ground in treating hepatitis

... RNA reductions by week 24, a significantly better response than the comparator. No viral breakthrough has been seen to date. However, vomiting and dehydration requiring hospitalization occurred in three patients taking the highest dose (800 mg), forcing the research team to halt the use of that dose and ...

Slow-frozen people? Latest research supports possibility of cyropreservation

... or subsequent warming to room temperature. "Damage of the cells occurs due to the extra-cellular and intra-cellular ice formation which leads to dehydration and separation into the ice and concentrated unfrozen solution. If we could, by slow cooling/warming, supercool and then warm the cells without the ...

Newly recognized gene mutation may reduce seeds, resurrect plants

... embryo development in plants, said Matthew Jenks, lead author of the study and a Purdue plant physiologist. Lipids play a role in preventing plant dehydration in forming cells' membranes, in molecular signaling and in energy storage. A still-to-be revealed lipid associated with formation of the cuticle that ...

A new molecule discovered in the battle between plants and disease

... and a function was sought in Arabidopsis by incubating plants under a variety of conditions and monitoring expression of the proAtPep1 gene. Cold and dehydration stress and exposure to ABA or MeSA did not affect the expression of proAtPep1, but wounding, exposing plants to methyl jasmonate (MeJA), or supplying ...

Spiders help scientists discover how muscles relax

... filament's structure, questions that could not be answered with existing electron microscopy techniques. Standard electron microscopy requires dehydration and staining of a tissue sample, which modifies the structure of the specimen and distorts its shape. Cryo-electron microscopy avoids these problems ...

Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

... fossils, the coccoidal cells provide the nutrients and the fungal filaments provide protection against dehydration. But in the marine environment, dehydration is not an issue and the 600-million-year-old rocks also contain many fossils of coccoidal cells that are not surrounded by filaments. "So it is a ...

New design : complete

... their rate of fluid loss is and individualize their fluid intake prior to a distance event," Dr. Levine said. "It's also good to accept some mild dehydration during a long race. There are plenty of Web sites available now that show how to customize your fluid intake." He also added that taking along ...

Bush, Cheney and Rumsfeld are now species of slime-mold beetles -- but strictly in homage

... their rate of fluid loss is and individualize their fluid intake prior to a distance event," Dr. Levine said. "It's also good to accept some mild dehydration during a long race. There are plenty of Web sites available now that show how to customize your fluid intake." He also added that taking along ...

Too much water may be as dangerous as too little during long-distance athletic events

... their rate of fluid loss is and individualize their fluid intake prior to a distance event," Dr. Levine said. "It's also good to accept some mild dehydration during a long race. There are plenty of Web sites available now that show how to customize your fluid intake." He also added that taking along ...
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