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Tag: "biologists" at biology news

Prions rapidly 'remodel' good protein into bad, Brown study shows

Two Brown Medical School biologists have figured out the fate of healthy protein when it comes in contact with the infectious prion form in yeast: The protein converts to the prion form, rendering it infectious. In an instant, good protein goes bad. This quick-change "mating" maneuver...

On a wing and a prayer - Alaska researchers seek clues to bird flu

...y of Alaska (UAF) scientists and state and federal biologists from across Alaska have joined forces and formed t...he Avian Influenza Program. Runstadler along with biologists and technicians from UAF and state, federal and private wildlife agencies are spending part of this ...

Scientists and engineers apply nature's design to human problems

...s engineers who want to apply their expertise with biologists a new way to design solutions to problems." After this experience, the idea for the center developed further with the help of a biological metaphor ?that of an "invasive" species, with the Center as the new species and Georgia Tech as the establishe...

Picky female frogs drive evolution of new species in less than 8,000 years

...rn males. In laboratory breeding experiments, the biologists discovered the reason for this choosiness: While n...ersial since the time of Charles Darwin, with some biologists claiming that it requires too many steps for evolution to get it right. "Some have argued that it's...

MBL researchers probe how an ancient microbe thrives and evolves without sex

A January 2004 finding by biologists at the Josephine Bay Paul Center for Comparative Molecular Biology and Evolution added important evidence to the radical conclusion that a group of diminutive aquatic animals called bdelloid rotifers have evolved for tens of millions of years without...

Techniques available to detect soil that inhibits destructive soybean pest

...n the United States in 1954. However, evolutionary biologists believe the pests were probably present in both areas as much as thousands of years earlier. The females of the species use a short, hypodermic needle-like mouth to pierce soybean roots and suck out the nutrients. As the adult female ages, she fills...

Renewed hope for Parkinson's patients

Research led by biologists at the University of California, Berkeley, has found that damage to a cell's DNA sets off a chain reaction that leads to the increased expression of a marker recognized by the body's immune system. The new findings, to be published July 3 in an adva...

New study finds how cells with damaged DNA alert the immune system

Research led by biologists at the University of California, Berkeley, has found that damage to a cell's DNA sets off a chain reaction that leads to the increased expression of a marker recognized by the body's immune system. The new findings, to be published July 3 in an adva...

Elusive salamanders have role in developing new sampling models

...any flatwoods salamanders since 2001, Fort Stewart biologists were a bit concerned and were looking for a better... juvenile abundance. Meanwhile, Hargrove and local biologists will gather physical data about the ponds and their watersheds combined with the presence or absence...

Freeze-dried mats of microbes awaken in Antarctic streambed

...osynthetic bacteria, cyanobacteria are believed by biologists to be among the first living organisms to colonize Earth. The mats generally are orange or black and consist of 10 to 15 different species of cyanobacteria, she said. Because of a cooling trend in the McMurdo Dry Valleys, some streambeds that normal...

NYU biologists map out early stages of embryo formation

A team of genomic researchers headed by biologists at New York University's Center for Comparative Functional Genomics, in collaboration with researchers at Harvard University, the Max Planck Institute, and Cenix Biosciences, has mapped out a preliminary molecular diagram of the early stages of embry...

Molecular mechanism of feather formation found

...ally testing one current hypothesis, developmental biologists at University of Wisconsin Medical School believe they now have the answer. In a previous study, UW anatomy professor John F. Fallon and his team showed that Sonic hedgehog (Shh) and bone morphogenetic protein 2 (Bmp2) must be expressed in order to ...

DNA from feathers tells tale of eagle fidelity

... also have added another tool to help conservation biologists study rare and elusive birds of prey. The researc... and ratios of males to females, help conservation biologists monitor populations of rare or endangered species. Noninvasive sampling allows biologists to track c...

Genomatix, AAAS ink agreement

...analysis pipeline offered by Genomatix and enables biologists to discover, explore and understand biologically relevant pathways down to the molecular level. Applying the Genomatix pipeline to a researcher's set of genes (for example, from a microarray analysis) generates the full biological network, allowing f...

Ancient DNA confirms single origin of Malagasy primates

Yale biologists have managed to extract and analyze DNA from giant...r more than 60 million years ago, Yoder said. The biologists extracted DNA from nine subfossil individuals in two of the more bizarre extinct species, Palaeoprop...

Simple explanation for complex pattern of feather development

...dy Museum of Natural History. An eclectic team of biologists used a combination of mathematical and molecular methods to reveal some of the secrets of branched feather growth, and propose how the unique complexity of feathers may have evolved. Ornithologist Prum led a team including anatomists Matthew Harris a...

Traditional models underestimate extinction rates

...s threats to endangered species continue to mount, biologists will need ever more robust methods to estimate extinction risk. Unfortunately, field biologists typically can't generate the large, high-quality datasets that led to the precise predictions report...

Researchers find molecule that inhibits regrowth of spinal nerve cells

...ve been shown to do so in isolation. Developmental biologists at UT Southwestern have been studying how ephrin-B3 helps control how and where nerve fibers grow during early development. They previously showed that the molecule throws up "fences" that repel developing nerves and guide them along the pathways to ...

Genome Sequence for Haemophilus Influenzae Completed

...t from wolf scat. "While we have engaged molecular biologists in studies of animal genetics and isotope dynamics...he thermal insulation of the otter's coat. Indeed, biologists have observed otters actively blowing air bubbles into their fur while grooming, and their energetic...

Otter adaptations: How do otters remain sleek and warm

...t from wolf scat. "While we have engaged molecular biologists in studies of animal genetics and isotope dynamics...he thermal insulation of the otter's coat. Indeed, biologists have observed otters actively blowing air bubbles into their fur while grooming, and their energetic...

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