navigate 2 2

Tag: "navigate" at biology news

How ants find their way

...ey travel and on later trips to the food site will navigate using a combination of landmarks and memories of t...explained: "To show that ants use visual memory to navigate we trained ants to find food 10cm from a cylinder. We then doubled the size of the cylinder and the ...

Drug treatment improves learning in mice with Down syndrome symptoms, Stanford/Packard study shows

...ficantly better able to identify novel objects and navigate a maze ­ tasks that simulate difficulties faced by children and adults with Down syndrome ­ after being fed 17 daily doses of milk containing a compound called pentylenetetrazole, or PTZ. Treated mice performed as well as their wild-type counterparts...

Many couples choose to donate surplus embryos for stem cell research

...gal advisor and embryologist, which helped couples navigate the confusing legal situation and address any concerns they might have had about donation for research purposes. While the findings reflect the interest level among couples in Spain—where the stem cell research environment is fairly open and people h...

Biologically inspired sensors can augment sonar, vision system in submarines

...ine is aimed at enhancing human ability to detect, navigate and survive in the underwater environment," said Liu, a Willett Scholar and a professor of electrical and computer engineering at Illinois. "Our goal is to develop an artificial device that mimics the functions and capabilities of the biological syst...

Vasectomy may put men at risk for type of dementia

...velop. Some people garden, build cabinets and even navigate a city subway system. By contrast, Alzheimer's patients lose interest in their hobbies, family life and may become idle. As PPA progresses over a number of years, however, patients eventually lose their ability to function independently. Prelimin...

How to steer a moving cell

...equires polarization to position the cell and help navigate its movement. Polarization is characterized by formation of a leading "false foot" or pseudopodium and a trailing rear "foot" at the back called a cell body, which is detached in the process of locomotion. In order to understand the inner worki...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...m to form the filaments, which the bacteria use to navigate around the body. "We used one bacterium to weed out another. I'm not aware of anyone ever doing that," Southwick said. "In an individual cell, you can't figure out where the actin is assembling and what's controlling it. But Listeria seems to use ...

Statin treatment improves spatial memory in mouse models of Alzheimer's

...ns, significantly improved spatial memory - how to navigate a water maze - in mice genetically bred to have an Alzheimer’s like disease. Although statin improved memory in both males and females, the results were more pronounced in males. Dr. H. A. Morcos, chair of Pharmacology at the American University of ...

Lessons from the orangutans: Upright walking may have begun in the trees

...as orangutans are, they would have needed a way to navigate the thin, flexible branches at the tree's peripher... "Our results suggest that bipedalism is used to navigate the smallest branches where the tastiest fruits are, and also to reach further to help cross gaps be...

NASA-funded robotic sub finds bottom of world's deepest sinkhole

...with such sparse sensor input. Robots typically navigate by recognizing features, but cenote walls, while i...eatures. To overcome this challenge, DEPTHX had to navigate by recognizing a more global response from all of its sensors. Wettergreen said demonstrating tha...

'Smart' mice teach scientists about learning process, brain disorders

...The engineered mice were more adept at learning to navigate a water maze and remembering that being in a certain box involves a mild shock. Equally important, Dr. Bibb said, when a situtation changed, such as the water maze being rearranged, the engineered mice were much faster to realize that things were dif...

1 2