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Army study improves ability to predict drinking water needs

AUDIO: When soldiers leave base for a three-day mission, how much water should they bring? Dr. Samuel Cheuvront of the US Army Research Institute of Environmental Medicine t...

Common fish species has 'human' ability to learn

Although worlds apart, the way fish learn could be closer to humans' way of thinking than previously believed, suggests a new research study. A common species of fish which is found across Europe including the UK, called the nine-spined stickleback, could be the first animal shown to exhibit an...

Physical activity may strengthen children's ability to pay attention

CHAMPAIGN, Ill. As school districts across the nation revamped curricula to meet requirements of the federal "No Child Left Behind" Act, opportunities for children to be physically active during the school day diminished significantly. Future mandates, however, might be better served by takin...

Rong Li Lab offers insight into adaptive ability of cells

The Stowers Institute's Rong Li Lab has published findings that shed light on the ability of cells to adapt to disruptions to their basic division machineries findings that may help explain how cancer cells elude the body's natural defense mechanisms or chemotherapy treatment. The work was publis...

Study confirms amphibians' ability to predict changes in biodiversity

Biologists have long suspected that amphibians, whose moist permeable skins make them susceptible to slight changes in the environment, might be good bellwethers for impending alterations in biodiversity during rapid climate change. Now two University of California biologists have verified the ...

UCSB study finds physical strength, fighting ability revealed in human faces

(Santa Barbara, Calif.) For our ancestors, misjudging the physical strength of a would-be opponent might have resulted in painful and potentially deadly defeat. Now, a study conducted by a team of scientists at the University of California, Santa Barbara has found that a mechanism exists wi...

Sweat it out: UH study examines ability of sweat patches to monitor bone loss

Some health assessments that are routinely carried out on Earth are not practical when the "patients" are free-floating astronauts on long space flights, such as missions to Mars or the Moon. A new, NASA-funded study from the University of Houston department of health and human performance will e...

Researchers find animal with ability to survive climate change

Queen's researchers have found that the main source of food for many fish - including cod - in the North Atlantic appears to adapt in order to survive climate change. Billions of Calanus finmarchicus , a plankton species, which are just a few millimetres in size, live in the waters of the Nort...

Improving our ability to peek inside molecules

LIVERMORE -- It's not easy to see a single molecule inside a living cell. Nevertheless, researchers at Lawrence Livermore National Laboratory are helping to develop a new technique that will enable them to create detailed high-resolution images, giving scientists an unprecedented look at the at...

'Smart' materials get smarter with ability to better control shape and size

AUSTIN, TexasA dynamic way to alter the shape and size of microscopic three-dimensional structures built out of proteins has been developed by biological chemist Jason Shear and his former graduate student Bryan Kaehr at The University of Texas at Austin. Shear and Kaehr fabricated a variety of...

Lizard hunting styles impact ability to walk, run

ATHENS, Ohio (April 21, 2008) The technique lizards use to grab their grub influences how they move, according to researchers at Ohio University. A research team led by doctoral student Eric McElroy tracked 18 different species of lizards as they walked or ran in order to understand how their...

Strengthening the tumor-fighting ability of T cells

When faced with cancer, the immune system dispatches cells, called T cells, to kill the tumor. But these killer cells often fail to completely eliminate the tumor because theyre deactivated by a distinct population of T cells known as regulatory T cells. Past attempts to get rid of these regulator...

Disrupting common parasites' ability to 'talk' to each other reduces infection

St. Louis, Jan. 9, 2007 One of the most common human parasites, Toxoplasma gondii, uses a hormone lifted from the plant world to decide when to increase its numbers and when to remain dormant, researchers at Washington University School of Medicine in St. Louis have found. The scientists repor...

Scientists ramp up ability of poplar plants to disarm toxic pollutants

Scientists since the early '90s have seen the potential for cleaning up contaminated sites by growing plants able to take up nasty groundwater pollutants through their roots. Then the plants break certain kinds of pollutants into harmless byproducts that the plants either incorporate into their r...

Spaceflight shown to alter ability of bacteria to cause disease

Space flight has been shown to have a profound impact on human physiology as the body adapts to zero gravity environments. Now, a new study led by researchers from the Biodesign Institute at Arizona State University has shown that the tiniest passengers flown in spacemicrobescan be equally affecte...

Was ability to run early man's Achilles heel?

The earliest humans almost certainly walked upright on two legs but may have struggled to run at even half the speed of modern man, new research suggests. The University of Manchester study presented to the BA (British Association for the Advancement of Science) Festival of Science in York on ...

Old growth giants limited by water-pulling ability

CORVALLIS, Ore. The Douglas-fir, state tree of Oregon, towering king of old-growth forests and one of the tallest tree species on Earth, finally stops growing taller because it just can't pull water any higher, a new study concludes. This limit on height is somewhere above 350 feet, or taller ...

The price of vanity: Mating with showy males may reduce offspring's ability to fight off pathogens

In many animals, males advertise to potential mates with showy traits, many of which are linked to testosterone levels. However, a new study suggests that, in fish, choosing a flashier mate may cause future generations to be more susceptible to pathogens. In the January 2007 issue of The American...

Clue found to Epstein-Barr virus' ability to form and sustain tumors

Researchers at the University of Wisconsin School of Medicine and Public Health (SMPH) have found a viral target that opens the door for the development of drugs to destroy tumors caused by Epstein-Barr virus (EBV). The finding, published in the Sept. 4 Proceedings of the National Academy of Sci...

Particle size matters to bacteria ability to immobilize heavy metals

One of the most common bacteria in the Earth, Shewanella oneidensis MR-1, uses oxygen as an energy source for respiration. But in the absence of oxygen, Shewanella uses (oxy)hydroxide minerals. These metal particles may also have adsorbed heavy metals on them. As a result, Shewanella influence the ...

Scientists find a key to immune system's ability to remember

The human immune system is a peerless memory bank. Its ability to accurately catalog and recall long past encounters with viruses, bacteria and other pathogens is why we only get the measles or chicken pox once, and is why exposure to deactivated virus particles in vaccines confers protection from ...

NYU algorithm enhances ability to detect cancer genes

Researchers at New York University's Courant Institute of Mathematical Sciences have developed a new algorithm that enhances the ability to detect a cancer gene, and have applied their algorithm to map the set of tumor-suppressor genes involved in lung cancer. The algorithm uses data from Affymetri...

A single sugar found responsible for an antibody's ability to treat inflammation

For years, researchers have struggled to understand how IVIG worked. It's ability to treat autoimmune diseases seemed to bean apparent contradiction. Intravenous immunoglobulin (IVIG) is a complex mixture of IgG antibodies made from human plasma that contains the pooled antibodies from thousand...

Study details hepatitis C ability to block immune system response

The study was published in an advance online edition of the Proceedings of the National Academy of Sciences on May 17. Hepatitis C virus (HCV) is a worldwide public health problem. The World Health Organization estimates that 170 million people worldwide are chronically infected and that between...

Viral hitchhiker inhibits Wolbachia bacteria's ability to proliferate

Scientists studying the widespread symbiotic bacteria Wolbachia have long been interested in its ability to proliferate. One way it does this is by hijacking sperm of its insect hosts and genetically tricking them to bear more infected females, the only sex that transmits the bacteria. Now, a new...

Honeybee decision-making ability rivals any department committee

When 10,000 honeybees fly the coop to hunt for a new home, usually a tree cavity, they have a unique method of deciding which site is right: With great efficiency they narrow down the options and minimize their bad decisions. Their technique, says Cornell University biologist Thomas Seeley, incl...

Scaled-down genome may power up E. coli's ability in lab, industry

Susan Brown, an associate professor of biology at Kansas State University, is interested in how evolution generates so much diversity in insects shapes and forms. Take the fruit fly and the beetle, for example. Even though they look very different, they have the same segmented body plan consistin...

Stress substantially slows human body's ability to heal

The stress a typical married couple feels during an ordinary half-hour argument is enough to slow their bodies' ability to heal from wounds by at least one day, a new study has shown. Moreover, if the couple's relationship is routinely hostile toward each other, the delay in that healing process...

Scientists learn to predict protein-stabilizing ability of small molecules

Prostate cancer is the second leading cause of death among American men. It is estimated that one in six males will develop the disease during his lifetime. However, promising new treatment options have been developed to help combat this threatening disease. One of the most innovat...

Rutgers researchers scientifically link dancing ability to mate quality

Dance has long been recognized as a signal of courtship in many animal species, including humans. Better dancers presumably attract more mates, or a more desirable mate. What's seemingly obvious in everyday life, however, has not always been rigorously verified by science. Now, a study by scienti...

Locusts' built-in 'surface analysis' ability directs them to fly overland

Swarms of millions of locusts have, since Biblical times and until our very own day, been considered a "plague" of major proportions, with the creatures destroying every growing thing in their path. Until now, it was thought that the directions of these swarms were predominantly directed by preva...

Variation in HIV's ability to disable host defenses contributes to rapid evolution

One of the reasons HIV is so difficult to contain and treat is its rapid evolution. Understanding how host defenses and viral countermeasures contribute to that evolution is vital. Host cells produce two proteins that mutate HIV DNA and interfere with the virus's ability to replicate. But HIV pro...

Study shows humans have ability to track odors, much like bloodhounds

Though humans may never match the tracking ability of dogs, we apparently have the ability to sniff out and locate odors, according to a new study by scientists from the University of California, Berkeley. Student volunteers presented with odors to one nostril or the other could reliably discern ...

Molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves

Weizmann Institute findings might advance search for new therapies for injured nerve fibers. Long distance messengers star in many heroic tales, perhaps the most famous being the one about the runner who carried the news about the victory of the Greeks over the Persians in the fateful battle of Mar...

Two chemicals boost immune cells' ability to fight HIV without gene therapy

A UCLA AIDS Institute study has discovered that two chemical compounds may help the immune systems of HIV-infected persons fight the disease without invasive gene therapy. Presented March 5 at the 2005 Palm Springs Symposium on HIV/AIDS, the new research demonstrates that the new chemicals activate...

Advances in lung cancer research announced at conference

...ing to the brain. In non-small cell lung cancer (NSCLC), brain metastasis is a devastating complication that occurs in as many as 1 in 4 patients. The ability to identify those at risk for developing brain metastasis may guide new therapies. A team led by Dr. Weiss found several microRNAs, which are singl...

Marine microbes creating green waves in industry

...ially relevant enzymes which will reduce waste and increase productivity in the manufacture of drugs and agrochemicals. The enzymes they seek have the ability to convert compounds that would have previously been waste products in the manufacturing process, into the desired product, therefore increasing the e...

AGU journal highlights -- Aug. 6, 2009

...tion, drives stronger winds above the Southern Ocean. These stronger winds bring more carbon-rich deep water to the surface, which reduces the ocean's ability to absorb more carbon dioxide from the atmosphere. The authors also find that ozone depletion increases ocean acidification. They suggest that future ...

New cancer drug delivery system is effective and reversible

...ng them to liposomes is difficult to control. Antibodies spur an immune response, requiring extra steps to create a useable therapeutic agent, and the ability of antibody-conjugated liposomes to bind to cancer cells can be inconsistent. Some small molecules, such folate, a vitamin, also work as cancer cel...

Mary had a lot of lambs: Researchers identify way to accelerate sheep breeding

...ough the presence of the M allele has been definitively correlated with the ability to breed out of season, the researchers caution that it may only be a marke...he researchers stress that it will be very important to validate the gene's ability to indicate for aseasonal breeding each time the allele is bred into a new ...
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Breaking Biology News(10 mins):The early cost of HIV 2Factor in naked mole rat's cells enhances protein integrity 2New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3
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