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Tag: "hard" at biology news

H5N1 avian flu virus vaccine induces immune responses in healthy adults

...irector Elias A. Zerhouni, M.D. "We are working hard to address the many challenges that remain with regard to the development of an H5N1 vaccine," adds NIAID Director Anthony S. Fauci, M.D. "For example, potentially protective immune responses were seen most frequently at the highest dose of this vacc...

UF scientists reveal ancient origin of vertebrate skeleton

...llular animals first began to make shell and other hard body parts. About 40 million years into the process, jawed and jawless vertebrates branched into different paths from the starting point, like the two ascending lines in the letter "V." "The lamprey is like the great-, great-, great-aunt descended f...

UF scientists reveal ancient origin of vertebrate skeleton

...llular animals first began to make shell and other hard body parts. About 40 million years into the process, jawed and jawless vertebrates branched into different paths from the starting point, like the two ascending lines in the letter "V." "The lamprey is like the great-, great-, great-aunt descended f...

Researchers get neurons and silicon talking

...e work will pave the way for a genetically-powered hard disk. "Europe is very well placed in this field o...cess to equipment and expertise that would be very hard to replicate elsewhere." ...

Natural selection at single gene demonstrated

...ural selection, with a statistical method based on hard genomic data. The group's research will be published online April 25 by Public Library of Science. "Do we now have enough data to see the standard neutral model wasn't appropriate?" Toomajian asked. "We know something more now about how the populat...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...and they can often get valuable data that would be hard to collect by other means," Costa said. ...

CU, USDA team to curb two invasive, poisonous vines

...d by the swallow-worts, other plant species have a hard time establishing themselves wherever swallow-worts grow, DiTommaso said. The pink-flowered pale swallow-wort grows rapidly in both forest understories and in open fields of undisturbed soil throughout central and upstate New York, around the Great ...

Nanotechnology may find disease before it starts

...is study, however, the researchers wanted to use a hard substance, silica, to see if their idea would work...als are those produced by sound waves bounce off a hard surface. While not biodegradable, the nanoparticles used in the study were biologically inert. The ...

Testes to incubate stem cells

...cells thriving in the mouse testes, since they are hard to spotin tissue sections. Once the researchers learned to isolate these elusive sperm-producing cells from bull calfs, they transplanted them into mouse testes. Despite the foreign surroundings, the bovine cells survived for long periods, up to thre...

University of Utah to help build bionic arm

... person's own arm. Existing prosthetic arms are so hard to use, and feel so unnatural, that sometimes people just don't use them. They put them on the closet shelf." How the Funding Will Work The initial two-year phase of the University of Utah's work will bring in up to $4.8 million. The second two-y...

Both alcoholism and chronic smoking can damage the brain's prefrontal cortex

... person's own arm. Existing prosthetic arms are so hard to use, and feel so unnatural, that sometimes people just don't use them. They put them on the closet shelf." How the Funding Will Work The initial two-year phase of the University of Utah's work will bring in up to $4.8 million. The second two-y...

Ticks, flukes, and genomics: Emerging pathogens revealed

...a--able to thrive only inside host cells--they are hard to isolate and study in the lab, Hotopp adds. "How are these diseases different? How are they the same? Can we correlate certain genes with certain characteristics? For the first time, our comparative genomics database offers a resource for tackling ...

International HIV/AIDS trial finds continuous antiretroviral therapy superior to episodic therapy

...r, says, "It is gratifying when the fruits of such hard work by so many individuals and the faith put in the investigators by the volunteers results in important data concerning the use of ART." David Cooper, M.D., D.Sc., of the National Centre in HIV Epidemiology and Clinical Research at the University ...

Aggression-related gene weakens brain's impulse control circuits

... effects depend on interactions with environmental hard knocks: men with L were more prone to impulsive violence, but only if they were abused as children. Meyer-Lindenberg and colleagues set out to discover how this works at the level of brain circuitry. Using structural MRI in 97 subjects, they found ...

Researchers develop portable 'vein finder' for faster, more accurate injections

...s' hearts aren't pumping properly, their veins are hard to locate. It's also difficult to find veins in obese people and young children because their vessels are covered by layers of fat." In addition to speed, the vein finder's accuracy will make treatment easier for hospital patients who need ongoing I...

Formation of cellulose fibers tracked for the first time

...bules, but the exact nature of the interaction was hard to pinpoint," Ehrhardt said. "The microtubules act as more than a general scaffold for organizing the cell wall; individual elements of the microtubule array appear to actively direct the pattern of the cellulose fibers. This work should set a long-s...

Protein 'nanosprings' most resilient found in nature

...d robustly unfold and refold," Bennett said. "It's hard to believe, but it happens. You have to wonder whether their structure plays an important functional role in sensing forces." Alpha helices are common protein structures, characterized by a single, spiral chain of amino acids stabilized by hydrogen b...

Less is more, gene study shows

...is). But humans lost that gene so long ago, it was hard to pinpoint the evolutionary forces behind the loss. So the researchers focused their attention on another human-specific pseudogene, CASPASE12. Work by other researchers had shown that the gene has completely lost its function in non-Africans, bu...

Flu not the only germ threat this time of year

The flu hasn't even hit hard yet this year, but it seems like everyone's gettin...from getting sick and making others sick. But it's hard to get people to wash their hands." In the early 1990s Falsey led an experiment involving hand wash...

Mice lacking social memory molecule take bullying in stride

...efeat. Their unaltered peers subjected to the same hard knocks became confirmed loners ?unless the researchers treated them with antidepressants. "For both mice and men, social status is important; for mice, losing to a dominant mouse usually means that they avoid the dominant and they avoid social sit...

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