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Tag: "late" at biology news

Scientists discover dozens of new species in 'Lost World' of western New Guinea

...Six-Wired Bird of Paradise. First described in the late 19th century through specimens collected by indigenous hunters from an unknown location on New Guinea, the species had been the focus of several subsequent expeditions that failed to find it. On the second day of the recent month-long expedition, am...

Exotic crab poised for widespread UK invasion

...for the crab should be introduced before it is too late to control the population. Chinese mitten crabs...pollution and a prolonged period of drought in the late 1980s - which together improved habitat conditions for mitten crabs - are potential reasons for th...

Oops! Researchers publish new findings on the brain's response to costly mistakes

...te feedback telling them if they were wrong or too late in responding. "In general, the response to a mistake that cost them money was greater than the response to other mistakes, and the involvement of the rACC suggests the importance of emotions in decision and performance-monitoring processes," says ...

Two NIH initiatives launch intensive efforts to find roots of common diseases

... Inc., of Mountain View, Calif., and will start in late summer 2006; Pfizer is contributing these Perlegen-produced genotypes as an "in kind" donation to the project. A similar arrangement will be worked out with Affymetrix. Federally funded genotyping for GEI will be managed by an NIH coordinating commit...

Access to antiretrovirals unlikely to reduce HIV infection rates

... individuals with AIDS symptoms (i.e. those at the late stages of the disease) was likely to increase the prevalence of HIV infection, as these people live longer and become sexually active again. If ART is also provided to HIV-positive individuals at an earlier stage, i.e. when their immune system starts...

Climate change drives widespread amphibian extinctions

..., the Monteverde harlequin frog disappeared in the late 1980s, as did the golden toad, whose much-publicized extinction, said Pounds, "was the first sign of this emerging threat to species survival." Using records of sea-surface and air temperatures, Pounds and colleagues show that harlequin frogs are di...

Key heart and Alzheimer's disease protein imaged for first time in native state

...Health before transitioning to Gladstone. In the late 1980s, apoE emerged as a major player in neurological disease, based in part on observations made at Gladstone. Next to one's age, the greatest known risk factor for Alzheimer's disease is the gene for apoE4. ApoE4 is associated with 40-60 percent of...

Basic research leads to a novel cancer therapy

... conducted with colleagues Birgit Millauer and the late Werner Risau, formerly of the Max Planck Institute of Neurobiology. There is a receptor specific to VEGF, called Flk-1/VEGFR2, found only in endothelial cells which are the building stones of new blood vessels. When Flk-1/VEGFR2 is made inoperative, ...

Neuroscientists discover new cell type that may help brain maintain memories of smells

...neuroanatomist Blanes (pronounced blon ?es) in the late 1800s. Blanes cells have unusual properties which may help the brain maintain memories of smells and also opens a new approach to understanding the basis of memory impairments in Alzheimer's disease. Their paper appears in the March 16 issue of the...

Faster immune system testing set to improve poultry quality

...xpensive and take weeks ?providing information too late to be useful. Combining this test with new immune-system boosting drugs would improve poultry welfare, and result in cheaper and better quality poultry products for European consumers. Poultry is the fastest growing livestock industry worldwide, ben...

Engineered mouse mimics cognitive aspects of schizophrenia

..., treatment with typical antipsychotics may be too late to reverse the physiological alterations that are responsible for the cognitive deficits." The researchers cautioned that "Rodent models of schizophrenia have significant limitations. The neuronal circuits affected in people are more complex than th...

UCSD biologists find new evidence for one-way evolution

...times controversial scientific question. While the late evolutionary biologist Stephen Jay Gould popularized the hypothesis of irreversibility, known as Dollo's Law, studies that use current methods to reconstruct the evolution of complex traits often fail to support it. This is because it is often diffic...

Waking a sleeping virus

...t way. The problem is that they only interrupt the late phase of the viral cycle. Since ZEBRA is essential to the first steps, waking the virus, blocking it would be much better." To identify weak points of ZEBRA as potential drug targets Morand and Carlo Petosa from Müller's group created a high-resolut...

Mobile phone use not linked to increased risk of glioma brain tumours

...e 1985, but widespread use did not begin until the late 1990s making the number of long term users (over 10 years) quite small. This study had limited numbers for estimating the risk of using a phone over a long period. Early mobile phones were designed to use analogue signals and emitted higher power th...

Hooked on fishing, and we're heading for the bottom, says scientist

...ht, of fish caught from the world's oceans ?in the late 1980s. Since then, while there have been regional ...s less catch." While global catches peaked in the late 1980s, the peak occurred earlier in those parts of the world where industrial fishing developed firs...

Red Tide causes sea turtle die-off in El Salvador

..." event that occurred off the coast of El Salvador late last year directly caused the deaths of some 200 sea turtles, according to test results released today by the Wildlife Conservation Society (WCS) and other organizations. Responding to requests from the Salvadoran government and the US Agency for In...

Driver of anthrax toxicity could lead to late-stage therapy

...he potential to protect against anthrax during the late stages of the disease, after antibiotics have lost...gainst the effects of accumulated toxin during the late stages of anthrax disease when antibacterial methods normally are no longer of therapeutic value," t...

Ernst Mayr's theory illustrated in genetic epidemiology studies

... 16-20 in St. Louis. He dedicated his talk to the late Ernst Mayr and the late Hampton Carson, another famed biologist who was at Washington University from 1944-70 and was an im...

Hyena mothers give their cubs a helpful dose of hormones

...ound that alpha females had higher androgen levels late in pregnancy when compared to the subordinate, pregnant females in the pack. Consequently, the cubs of the alpha females were more aggressive and exhibited more sexual play, characteristics that elevate the chances for life-success in both sexes. In...

Gene needed for butterfly transformation also key for insects like grasshoppers

...metamorphosis," said Riddiford. "It appears in the late embryonic stage and stays throughout nymphal life, then disappears when the insect transforms to an adult." ...

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