The blotchier the face, the better the wasp
...ls, it gets punished. "That kind of aggression has lasting repercussions," she said. "They have less time to feed and to take care of their offspring." Dale said, "Wasps have really sophisticated visual signaling systems. We're just starting to get a window into the kinds of messages they're telling each oth...By impounding iron, FHC foils cell suicide, fuels inflammation
...cells, which they misidentify as invaders, causing lasting disease and tissue damage. A similar process, when dysfunctional cells fail to die, plays a key role in the accumulation of cancerous cells and then protects those cells from radiation and chemotherapies designed to provoke tumor cell suicide. Drugs...UCLA scientists uncork fountain of youth for HIV-fighting cells
...reatment for HIV and related diseases that rely on lasting protection by the same immune cells. These include cancer and latent cytomegalovirus, a viral infection that often strikes organ-transplant patients and persons with AIDS....Novel biotoxin being studied for use in opioid withdrawal
...ish. Studies have shown it to be fast acting, long lasting and non-addictive. It was originally developed for the clinical treatment of heroin withdrawal in China. It works by blocking slow sodium channel nocicipetive pain fibres in a highly selective way. Tetrodotoxin proved to have such good analgesic prop...International Polar Year preparations
...o take a proactive role in IPY. We want to leave a lasting effect. With this workshop we can get a picture of how UAF can do that." "People are looking to Alaska to provide some leadership for the International Polar Year," said Geophysical Institute Director Roger Smith. "UAF will shape Alaska's participati...Researchers discover direct link between agricultural runoff and massive algal blooms in the sea
...to 577 square kilometers) of the Sea of Cortez and lasting several days. "Sometimes eddies actually pulled the plumes across the gulf, from the mainland side all the way to the Baja Peninsula," Beman added. "Mike found that immediately following each one-week window in which much of the valley was irrigated,...JCI table of contents, 3 January 2005
...eurons to survive and for that survival to be long lasting in order to render this approach as a useful therapy in humans. Langston highlights that "clearly the study reported here will advance research aimed at validating the use of stem cells to treat neurodegenerative disease" and this is most welcom...Transplantation of monkey embryonic stem cells reverses Parkinson disease in primates
...eurons to survive and for that survival to be long lasting in order to render this approach as a useful therapy in humans. Langston highlights that "clearly the study reported here will advance research aimed at validating the use of stem cells to treat neurodegenerative disease" and this is most welcome pa...Improved recipe for magnetic brain stimulation
...logical effects of TMS have been transient, rarely lasting longer than 30 minutes. Now, researchers led by John Rothwell of the Institute of Neurology at University College London have devised a new TMS method that produces rapid, consistent, and controllable changes in the motor cortex of humans that last m...Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer
...CPDs and 6-4PPs have particular potential to cause lasting damage to mammalian cells because photolyases a class of enzymes capable of efficiently repairing these lesions have apparently been lost from placental mammals over the course of evolution. Thus, most mammals, including humans, can only repair th......eart that can cause congestive heart failure. The lasting damage results from the limited ability of the myocardium to regenerate and self-repair. Douglas Losordo and colleagues from Tufts University now document the existence of a previously unrecognized subset of human bone marrowderived stem cells with ...Single stem cells from bone heal a broken heart
...eart that can cause congestive heart failure. The lasting damage results from the limited ability of the myocardium to regenerate and self-repair. Douglas Losordo and colleagues from Tufts University now document the existence of a previously unrecognized subset of human bone marrowderived stem cells with ...New monkey species name to be auctioned
...y is for someone who wants to leave behind a truly lasting legacy that they cared about conservation and wildlife." The high bidder will have the name of their choice permanently entered into all future references, including scientific publications, field guides, and other publications,...Tree-ring data reveals multiyear droughts unlike any in recent memory
...t stretched for 12 years. "Imagine what a drought lasting that long would do to the resources and economy of...75, 1805, 1890 and 1925 were notable, but shorter, lasting some three to five years each. "This is a wake up call for the importance of drought planning, and ...... the world's shortest high-intensity laser pulses, lasting merely 5 millionths of a billionth of a second (= 5 femtoseconds). These pulses hit the atoms so abruptly that they have no time to disintegrate before emitting the X-ray burst. Thanks to this extremely short interaction time, the researchers have no...JCI table of contents March 1, 2005
...After inflammation, mice lacking EP2 exhibit short lasting pain of peripheral origin, but completely lack long-lasting central pain. The mice have subdued transmission of pain signals. The findings indicate that targeting a single prostaglandin receptor subtype, EP2, can control chronic pain, as opposed to ...Biological clock may shut down long-term memory at night
... in school, but did not leave you with enough of a lasting impression to become part of your long-term store of knowledge. "Somewhere in the molecular circuit, in the neural circuit in the brain, the biological clock is shutting that circuit off at a particular time of night. It's shutting molecules down ...Were bigger brains really smarter?
... that our ancestors went through two periods, each lasting more than a million years, when toolmaking techniques didn't gradually improve, despite a lot of gradual brain size increase." There is no lack of other candidates for why a bigger brain would be better. Calvin, who is affiliate professor of psychi...In the mating game, male wild turkeys benefit even when they don't get the girl
...lection not to be true," Koenig said. "Alan's real lasting contribution is that he has actually done the test, demonstrating that it pretty much works out the way those guys envisioned it over 30 years ago."...'Hobbit' fossil likely represents new branch on human family tree
...n her fossilized skull, but the living brain makes lasting impressions on the interior of the skull that can be used to infer some aspects of brain structure. "We can analyze impressions inside the skull to suggest a positive -- that a particular brain structure was there -- but they can't give us conclusiv...