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Tag: "call" at biology news

Researchers find 24 species believed new to science in Suriname rainforest

...ironment. In their final report, the scientists call for improved conservation management of the region to address and halt threats from hunting and small-scale illegal mining. The report suggests that strategies should focus on protecting freshwater streams and preventing fragmentation of the natural ...

How to lose weight and not go hungry: HU researcher develops drug that mimics feeling of 'fullness'

...able to demonstrate that their peptide, which they call BL-3020, displayed good metabolic stability to intestinal enzymes when swallowed, and that it was able to cross the intestinal wall and gain access into the blood stream. Once in the blood, it could make its way to the MC4R receptor and “close the ci...

Undergraduate research shows leaderless honeybee organizing

...ers begin to send a second signal that researchers call “worker piping” at a fevered pitch. Piping, which consists of bees making contact and vibrating their wing muscles rapidly, appears to be a general instruction to fly. The researchers document that the workers stop using the vibration signal when ...

Electric fish conduct electric duets in aquatic courtship

...a certain electric signal] is a male advertisement call during courtship in this species," said Wong, noting that the males also serenade females with lower frequency "creaks." The researchers developed custom software that offers new techniques for separating and documenting electrical pulses based on...

Study identifies 5 genetic themes key to keeping stem cells in a primitive, flexible state

...nline, open-access journal PLoS ONE. “You could call this a ‘theory-of-everything’ for stem cells,” said senior author Dr. Michael Rudnicki, referring to the often-cited theory of everything for physics. Dr. Rudnicki is a Senior Scientist and Professor at the Ottawa Health Research Institute and the Un...

Mule deer moms rescue other fawns

...ve response to the simple sound of a fawn distress call may ensure effective defence of a female's own offspring, even though this means the female invests time and energy and puts herself at risk by helping many other animals. In contrast, a whitetail mother waits to assess whether a fawn is her own befo...

How brain pacemakers erase diseased messages

...trical pulses deep in the brain produces what they call an "informational lesion." By relaying a repetitious and therefore meaningless message, constant pulses overwhelm the erratic bursts of brain activity characteristic of disease. "Periodic bursts in the brains of people with tremor -- which might f...

Mice with a migraine show signs of brain damage

...ousands of headache sufferers, echoes Nedergaard’s call for a greater emphasis on prevention. “It’s astounding just how many migraine sufferers do not see a doctor and are not on a medication to prevent a recurrence,?said Friedman, professor of Ophthalmology and Neurology. “It’s estimated that less tha...

Why do oysters choose to live where they could be eaten?

...case of oyster larvae, the selection of a place to call home can be a life or death decision. According to an article in the May edition of Ecological Monographs, a team of scientists has found that despite the risk of being eaten by cannibalistic adults, oyster larvae choose to settle in areas of high o...

An ancient bathtub ring of mammoth fossils

...west National Laboratory geologists have put out a call for teeth tusks, femurs and any and all other parts of extinct mammoths left by massive Ice Age floods in southeastern Washington. The fossils, in some cases whole skeletons of Mammathus columbi, the Columbian mammoth, were deposited in the hillside...

Warts vaccine -- 1 of many in pipeline

...rts who would like to take part in the trial could call 3240 5881 to learn more. All calls are handled in confidence....

DOE JGI sets 'gold standard' for metagenomic data analysis

... stake their claim. Amidst the prospecting, the call has been issued for methods to separate fool's gold from the real nuggets. Such a gold standard has now been provided through work led by the U.S. Department of Energy Joint Genome Institute (DOE JGI) with colleagues from Oak Ridge National Laborato...

From the deep -- Researchers find new species of sea anemone

...rcass sinks to the bottom of the ocean. Scientists call this a "whale fall." The anemones that Daly received once lived on the bones of a dead whale some 1.8 miles (3,000 meters) below sea level in a region of the Pacific Ocean called Monterey Canyon, roughly 25 miles off the coast of Monterey, Calif. All...

Study shows dramatic increase in Caesarean sections

...omen in 1984-88. "The figures show that what we call elective or planned caesareans have risen from 6 per cent to 13 per cent over the 20 year period and during the same time, there has been a 70 per cent increase in the number of emergency caesareans," Ms O'Leary said. "From the analysis it is clea...

Executable biology -- Computer science sheds light on animal development

...s for only the most promising research avenues. We call this Executable Biology."...

In young mice, gregariousness seems to reside in the genes

...sitive experience. The quality and quantity of the call are tightly associated with the nature of the interaction itself." As the mice neared sexual maturity, the genetic influence on social behavior ebbed and the animals became much more responsive to social cues such as gender, according to Lahvis. ...

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

... offspring during pregnancy. The study's results call into question current understanding of the development of male and female foetuses of this species, and give scientists a new insight into the importance of sibling sex and what implications this may have for the animals as they mature. This stud...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

...using Hirudo verbana in their work for decades may call much of this research, including hundreds of scientific publications, into question and force a reconsideration of what scientists think they know about this widely studied species. Siddall and his colleagues examined mitochondrial and nuclear DNA...

Microbes start immune response by sneaking inside cells

...he study’s co-first authors, find that cryopyrin’s call to action inside the cells occurs without requiring a well-known set of cell-surface receptors called Toll-like receptors or TLRs. ”We prove that these TLRs are not required to activate cryopyrin. That is a major step,?says Nunez. Instead, bacte...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...stroy cancer cells, they don't have the ability to call upon the full capabilities of the immune system, as do the helper T cells." The new tumor antigen discovered in her lab, RPL8, is an ideal vaccine candidate because it has the potential for eliciting both helper T cells and CTL responses, Herlyn s...

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