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Tag: "leave" at biology news

Leeches ferry infection among newts

...y begin at sites recently bitten by leeches, which leave behind a characteristic patch of blood under the skin. Raffel, whose work is funded by the National Science Foundation, says "when a leech sticks its proboscis into an infected newt, either the mechanical action of the probe or the anti-inflamma...

Chemical maps hint at drug's effects on schizophrenia

... do most of their work in the brain, but they also leave behind in the bloodstream a trail of hundreds of chemicals that may be used in the future to direct better treatment for schizophrenia and other psychiatric conditions, say Duke University Medical Center researchers. The study is among the first to ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...enable you to cover the meeting, even if you can't leave your desk. NOTEWORTHY SALT LAKE CITY MEETING EVENTS For those at the meeting, there will be noteworthy sessions including an evening tutorial/concert featuring the Salt Lake City Jazz Orchestra, a demonstration of the Mormon Tabernacle Choir'...

How to steer a moving cell

... cell’s inner compass goes awry ?allowing cells to leave the primary tumor, crawl through tissues and enter blood vessels ?spreading the cancer throughout the body. Richard Klemke, Ph.D., professor of pathology at UCSD School of Medicine and the Moores Cancer Center, and his colleagues set out to better...

Male circumcision overstated as prevention tool against AIDS

...egard for human life among infected prostitutes to leave treatment decisions solely up to them. A program of testing and treatment for prostitutes must be mandatory and those that refuse treatment must be held liable. Many international aid organizations are against such mandatory treatment programs fo...

CU study reveals why starling females cheat

...the chicks' survival rates. While females often leave the group when young, most males live their entire lives with their families and, therefore, are usually related to the chicks. By helping the chicks survive, they pass on familial genes. In contrast, some females cheat with males outside their gr...

Study shows lizard moms dress their children for success

...o a lizard could end up with a mismatch that would leave it highly vulnerable to predators--wearing stripes and trying to hide in the grass, for example. Lancaster identified two pathways by which an extra dose of estradiol from the mother can help to resolve this problem. In one pathway, females increa...

Undergraduate research shows leaderless honeybee organizing

...e rest of the colony that it was time to swarm and leave the hive. Later, they were able to observe inside the swarm itself and see workers give the queen a signal, known as “piping” that tells her to fly. “Researchers have never reported worker piping being done on the queen before, so some of what we ...

Dirty snow may warm Arctic as much as greenhouse gases

...sions and switching to cleaner-burning fuels would leave snow brighter, he says. New snow falls each year, and if it contained fewer impurities, the ground would brighten and temperatures would cool. Carbon dioxide lives in the atmosphere for a century, so cutting back on emissions can prevent further warm...

How sneaky HIV escapes cells

...uses AIDS, uses a pre-existing transport system to leave one infected cell and infect new ones, Hopkins sci...ng belief that HIV and other retroviruses can only leave and enter cells by virus-specific mechanisms. “It appears that cells make HIV and other retrovirus...

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