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Tag: "early" at biology news

Massive herds of animals found to still exist in Southern Sudan

...and Marjan set out to replicate the surveys of the early ’80s. Using the same methodology, the same flight ...atic survey in Boma, where 29,000 were seen in the early ’80s,” said Elkan. During complementary reconnaissance surveys in late May, Elkan, WCS pilot Falk Gr...

Researchers reveal structure of protein altered in autism

...ubtle behavioral abnormalities that are seen at an early age. “Abnormal synaptic development in nerve co...dded that synapse formation and maintenance occurs early in development when the infant brain is still plastic and formative. Therefore, by understanding th...

Study shows lizard moms dress their children for success

...dults. In a paper published June 10 in the online early edition of the journal Ecology Letters (and in a later print issue), the researchers reported that female side-blotched lizards give an extra dose of the hormone estradiol to their eggs in certain social circumstances. The extra hormone affects the b...

Nurtured chimps rake it in

...ive development, and offer direct comparisons with early experience, issues of attachment, and preschool education for human infants and children,” The authors conclude that the differences in performance between the three groups are directly attributable to the significant effect of level of enculturat...

Bacteria ferry nanoparticles into cells for early diagnosis, treatment

...o precisely position sensors, drugs or DNA for the early diagnosis and treatment of various diseases. Th...to monitor activities inside a single cell for the early detection of cancer and other diseases and to monitor the progress of disease and response to drug t...

454 sequencing identifies HIV drug resistance at early stage

...xtremely important as it enabled the prediction of early antiretroviral treatment failure with strong stati...y aimed to determine if patients that fail therapy early were initially infected with a drug resistant HIV strain or if mutations arose in response to treatm...

UI anthropologist, colleagues discover remains of earliest giant panda

... other bears and was adapted to eating bamboo very early in its development. “Pandas are very unique bears -– the only bear species that is known to exist wholly on a vegetarian diet,” says Ciochon. “The evolution of this unique dietary specialization probably took millions of years to refine. Our new d...

Researchers discover 'acquired' DNA key to certain bacterial infection

...f infections, though Bermudez cautioned that it is early in the process. “We still don’t know what most of the individual genes do,” he said, “and none of the DNA sequences match those in known databases.” The researchers did discover that one of the genes provides coding for a protein that targets a...

Reconstructing the biology of extinct species: A new approach

...al Academy of Sciences and in the journal's online early edition during the week of 18 to 22 June. "We have shown that there is a fundamental adaptive mechanism linking a species' locomotion with the sensory systems that process information about its environment," says Alan Walker, Evan Pugh Professor o...

How 'memory' T cells curb the spread of viruses throughout the body

... virus from the lymph node to vital organs at very early stages of the infection. “It’s like having a security check point,” said Sigal. “Also, many cancers, like viruses, must pass through lymph nodes to metastasize, so this research may help develop vaccines that prevent tumor metastases.”...

Researchers identify protein pathway involved in Parkinson disease development

... damage. Other scientists recently have linked early onset Parkinson disease to mutations in both copies of the PINK1 gene (one from each parent). They also have evidence that single-copy mutations in PINK1 are a significant risk factor for the development of later-onset Parkinson disease. "We now ...

The mouflons of the Kerguelen archipelago

... population grew exponentially, and then, from the early 1980s, it fluctuated between 300 and 700 individuals. The history of a fascinating research project Denis Réale discovered this mouflon population while doing his French civilian service in 1991. For 16 months, he participated in an ecologica...

Turn-ons and turn-offs for neurons

... gene function in the adult nervous system. In the early 1990s, scientists described a tetracycline-control...at genes which had been inactive in neurons during early mouse development become functionally silenced in the adult brain. Intriguingly, Hasan and colleague...

AAAS decries latest stem cell veto

...approaches addressed by the order are still in the early stages of development and appear to already be eli...approaches addressed by the order are still in the early stages of development and appear to already be eligible for NIH funding. AAAS strongly believes that...

Experts predict Tamiflu could halve the pandemic influenza death toll versus no intervention

...accine are unlikely to become available within the early months of the pandemic, making prophylaxis and treatment with antivirals a crucial part in the efforts to reduce the burden of pandemic influenza.4 “In an environment full of uncertainties, it is best to have a comprehensive plan in place,” said ...

Putting feelings into words produces therapeutic effects in the brain

...r in Southeast Asia and elsewhere, originates from early Buddhist teachings dating back some 2,500 years, said David Creswell, a research scientist with the Cousins Center for Psychoneuroimmunology at the Semel Institute for Neuroscience and Human Behavior at UCLA. Mindfulness is a technique in which o...

Definitive evidence found of a swimming dinosaur

... of terrestrial dinosaur trackways dating from the early Cretaceous 125 million years ago. The team's findings are reported in the June issue of GEOLOGY, published by the Geological Society of America. The trackway consists of 6 asymmetrical pairs of 2-3 scratch marks each. Each set of scratch marks, pr...

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

... to it. NR2B previously has been implicated in the early stages of learning. The new research showed that when Cdk5 is removed from the brain, the levels of NR2B significantly increase, and the mice are primed to learn, Dr. Bibb said. "We made the animals ‘smarter,’ but in doing so and applying this...

Treating HIV in war zones -- Public health emergencies need rapid advice from WHO

...e episode of conflict-related disruption occurring early in the programme, and thus similar results in conflict settings may not always be possible. "Nevertheless," they say, "the key elements of contingency planning for care delivery in conflict settings are not resource-intense and we believe they can ge...

'Nurse cells' make life and death decisions for infection-fighting cells

...ttempt to eliminate disease-infected cells. "In early studies, it was suggested that thymic nurse cells only removed non-functional thymocytes," said Eve Barak, program director in NSF's Division of Molecular and Cellular Biology. "This research shows that nurse cells are performing a much bigger role i...

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