walk 2 2

Tag: "walk" at biology news

Ethiopian development raises birth rate

... where it had not. While previously, women had to walk up to 30 km to fetch their families' water, the new water supply reduced the time spent carrying water each day from around three hours to about 15 minutes. The availability of tapped water improved the survival of young children and the birth rate...

Diverse tropical forests defy metabolic ecology models

...too complex for universal explanations? "When you walk through different tropical forests, or graph data from different forests, there are certain features that, at first glance, look similar everywhere '" the presence of some very large trees, or the general shape of the tree size distribution curve," e...

Bringing the zoos to the zebras

...anged their behavior and allowed Grevy's zebras to walk with the livestock," added Rubenstein, principal investigator of the Earthwatch-supported Grevy's Zebras project. Since 2001, teams of Earthwatch volunteers have worked with Dr. Rubenstein and his Kenyan colleagues to determine the habitat needs of ...

UCLA scientists find male gene in brain area targeted by Parkinson's

...lity by half in a week. "Initially, the rat could walk 14 steps in 10 seconds," he noted. "After we lowered the SRY levels in its brain, the rat could only manage seven steps in the same amount of time." Vilain believes that variations in SRY levels may be linked to the onset of Parkinson's and could of...

Expert dispels bird flu paranoia

...nvulsions, head arched backwards, unable to fly or walk properly, facial and comb swelling and mouth and comb turning blue and report any worries to your local government biosecurity officer. Don't eat raw or undercooked chicken. Don't use untreated water, use clean town water or bore water. "Cons...

Image of myosin-actin interaction revealed in cover story of Molecular Cell

..."heads" that bind to specific grooves on actin and walk hand over hand along the track, similar to the way a child moves along the monkey bars in a playground. Myosin V differs from the other myosin family proteins in that it is able to sustain this processive motion, enduring many hydrolysis cycles. The...

Same-sex mating by fungi spawned infection outbreak, evidence suggests

... other apparent risk factors except having taken a walk in the park on Vancouver Island," said Joseph Heitman, M.D., Ph.D. "A year after infection, some of these people still have not fully recovered. "The fungus appears to have become entrenched in the Vancouver Island area," he added. "It is unlikely t...

Gene therapy works in mice to prevent blindness that strikes boys

...t's the vision that you need to be able to read or walk around." Scientists say the gene transfer method eventually could be applied to many eye diseases caused by single gene defects, including a host of retinal disorders. Retinoschisis is usually first detected in boys between 5 and 10 years of age wh...

Exercise aside, genes may ultimately dictate seniors' mobility

...orted their level of activity and their ability to walk a quarter mile or up 10 stairs. Researchers also tested the blood of each study subject to identify which version of a gene long associated with exercise performance they had. About a third of the population possesses the DD genotype of the gene, na...

Skull study sheds light on dinosaur diversity

... style of "wide gauge" locomotion. "Most animals walk with a narrow gauge, with their feet close to the ...line, because it's energetically more efficient to walk that way. But some sauropod trackways tell us that a group of sauropods were walking with a new wide...

Study identifies gene in mice that may control risk-taking behavior in humans

...ters above a tabletop where mice had the option to walk along narrow, unprotected walkways or arms with protective walls. Half of the time the neuroD2-deficient mice chose the unprotected arms, whereas the normal mice almost always chose the protected arms, Olson said. "All of this matches very well wit...

Penguin chicks exposed to human visitors experience spike in stress hormone

...non-visited areas. "In the tourist areas, you can walk among them and they put up with you. But when you walk over the hill to the places where tourists don't go, they're much more skittish. They run away or di...

New insights into how Huntington's disease attacks the brain

...priving a person of their ability to think, speak, walk and swallow, the disease robs the person of their independence, leading to death within 10 to 25 years. Every carrier of the HD gene mutation will develop the disease. Each child of a parent with Huntington's disease possesses a 50 percent risk of i...

Researcher gets NSF grant to create mutant maize lines

... breadth of uses for maize, Brutnell adds. "If you walk into a grocery store, 80 percent of the products on the shelves contain maize, in the form of starch, sugar, meal or oil," he says. "It's a $23 billion-a-year industry in the U.S. alone." Brutnell's colleagues include Erik Vollbrecht and Volker Bren...

Combination therapy leads to partial recovery from spinal cord injury in rats

...rapy led to an improvement in the rats' ability to walk and about a 10 percent improvement on the electrical current test. Rats that received the other treatments did not improve significantly, and untreated rats did not have any electrical activity that passed through the damaged spinal cord. Studies of ...

Alarm pheromone causes aphids to sprout wings

... that has long been known to cause other aphids to walk around or drop from the plant. In a paper soon to appear in Ecology Letters, researchers at the University and Max-Planck-Institute in Jena, Germany, now show that exposure to alarm pheromone also causes pea aphids to produce winged offspring that l...

Bobbing birds do it for a reason

...s that when the birds are searching for food, they walk at a moderate pace that allows the head to be held still more than 50% of the time. In other words, when foraging, whooping cranes favor visual fixation. This result strongly suggests that visual fixation not only removes motion blur but also plays ...

Vampire bats keep out of trouble by running

...r-legged terrestrial mammals, in that they like to walk around on the ground; other bat species fumble hel... Medicine have discovered that these bats not only walk but run. The unprecedented gait of Desmodus rotundus is described in a brief communication in this w...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

... go to an island that had foxes, it's very easy to walk around because the plants don't grow much higher than your ankles. But on the other islands, it's hard work just to get through the vegetation. It was exhausting just trying to get around on those islands," he said. The researchers found that the de...

1 2