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Tag: "returning" at biology news

Carnegie Mellon scientists show brain uses optimal code for sound

...ing leaves and wind rustling through leaves before returning to the laboratory to de-code the information contained in this rich set of sounds. They also discovered what they consider the most "natural" sound: if they play back a random set of spikes, it sounds like running water. "We're very excited about th...

Taking a bite out of a fellow worker helps wasps recruit new foragers

...insects to their nests. A day later, all foragers returning to a nest were removed for at least two hours and until none arrived for at least one hour of continuous monitoring. "The rate of foraging slowed down and stopped completely, placing stress on the colony because materials the colony needs, primarily...

Typhoid fever led to the fall of Athens

...t common in developing countries and in travellers returning from these countries. Corresponding author Dr Manolis J Papagrigorakis of the University of Athens says: "Studying the historical aspects of infectious diseases can be a powerful tool for several disciplines to learn from. We believe this report to ...

Pittsburgh researchers discover that certain chemicals in the blood may indicate brain injury

...imize re-injury to infants by preventing them from returning to an unsafe environment. This also can help protect siblings who may be living in the same violent environment." The study involved 98 infants who presented to Children's Hospital of Pittsburgh's Emergency Department with one of the following sympt...

Leave it to salmon to leave no stone unturned

...his does replace some of the nutrients that salmon returning from the sea would normally provide, it entirely ignores the fact that live salmon play a diverse suite of roles in streams, including helping to disperse those nutrients." ...

Study shows hope for ridding lakes of clawed invader

... that's fish habitat, and the fish populations are returning to what they were before the rusty got into the la...yfish population to crash, with the lake ecosystem returning to its pre-rusty crayfish state. "What we are wondering is whether we will reach a tipping point w...

Iraq's marshes show progress toward recovery

...es remain poor, which deters many Marsh Arabs from returning to a traditional way of life. Further research is needed--but is not being done, say Richardson and Hussain--to determine how the marshes and agriculture can share water, to identify sites of toxins, and to study insecticide use by local fishermen. ...

Scientist-astronaut sends T-cells into space

...ly packaged and then sent back to Earth aboard the returning Soyuz craft. In her VA lab in San Francisco, Hughes-Fulford will analyze the results. "Our expectation is that the T-cells in the centrifuge ?basically, under artificial gravity ?will be activated normally, and the T-cells in microgravity will not ...

New MRI technique quickly builds 3-D images of knees

...me was spent either prepping for the experiment or returning it to the steady state so that you could do the next experiment," Block says. "What we're doing now is capable of a study that you can visualize in any plane in about the same time as people are doing one plane." For example, when imaging a joint l...

NASA technology helping injured US troops

...s and sounding rockets is now aiding U.S. soldiers returning from overseas duty with spinal cord or traumatic brain injuries, at Walter Reed Army Medical Center in Washington, D.C. The revolutionary new physical therapy device named SAM, for the Secure Ambulation Mode, is based on technology originally develop...

Wild meerkats school their young

... to the pup, sometimes further disabling it before returning it to the young meerkat. The researchers, Alex Thornton and Katherine McAuliffe, Department of Zoology, University of Cambridge, are part of the Kalahari Meerkat Project, located at the Kuruman River Reserve, South Africa. The project is a decade-...

Scientific issues associated with carbon-neutral energy sources such as cellulosic ethanol

... nation and world. There is widespread interest in returning to the use of plants as widely used sources of renewable energy . "However, because of competing uses for land, a central challenge for 21st century biologists is to increase the efficiency of solar energy capture to the theoretical limit by rat...

Epstein-Barr virus might kick-start multiple sclerosis

...ch as lupus. Münz predicted that Edwards, who is returning to Duke University this summer to complete her medical degree, could help bridge the gap between the research worlds of infectious diseases and autoimmune diseases. "It's an exciting new field to which Nancy could greatly contribute," he said. Whate...

Ocean temperature predicts spread of marine species

... larvae that drift far along ocean currents before returning to join adult populations. The distance larvae travel before maturing, called dispersal, is directly linked to ocean temperature, the researchers found. For example, larvae from the same species travel far less in warmer waters than in colder waters,...

End of deforestation in view? Experts advance new way to size up global forest resources

...ovide grounds for optimism about the prospects for returning forests."...

Science researchers genetically transform immune cells into tumor fighters

...ry the receptor that recognizes melanoma cells and returning these "re-armed" cells to rebuild the patients' immune systems. "We can take normal lymphocytes from patients and convert them to tumor-reactive cells," Rosenberg says, adding that the engineered cells could be tailored to fight tumors other than m...

Record ozone loss during 2006 over South Pole

... As the polar spring arrives, the combination of returning sunlight and the presence of polar stratospheric clouds leads to splitting of chlorine compounds into highly ozone-reactive radicals that break ozone down into individual oxygen molecules. A single molecule of chlorine has the potential to break down...

Cryoablation -- A new treatment option for some kidney tumor patients

...he patient spends one night in the hospital before returning home. Surgeons continue to seek less invasive methods than the traditional radical nephrectomy (removal of cancerous kidney) for the treatment of small tumors, and percutaneous cryoablation is now on the list. With the incidence of kidney cancer ...

Turtles are loyal in feeding as well as in breeding

...ge new growth, so there could be a benefit to them returning to foraging grounds. Loggerheads have an omnivorous diet, including molluscs and crustacea, so the benefit to them revisiting feeding areas is unclear. Scientists do not yet know why this behaviour has evolved, but it is possible that sea turtles are...

Massive coral death attributed to earthquake

...ize the shallow reef areas. The reefs appear to be returning to what they looked like before the earthquake, although the process may take many years. "The challenge now is to work with local communities and government agencies to protect these reefs to ensure the recovery process continues," he says. The ...

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