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Tag: "kind" at biology news

How 'hot' emotional brain interferes with 'cool' processing

...rformance. "The experimental design mimicked the kind of distraction people experience in everyday life," Dolcos added. "For example someone driving on a highway, attempting to pay attention to the driving task might encounter an emotional distracter such as an accident. As everybody knows, at that mome...

Watching the brain switch off 'self'

... sensory experience that assume that there is some kind of "homunculus", or observer function in the brain that "looks at" sensory brain areas. Thus the finding, they said, has significance for understanding the basic nature of consciousness and perception. The experimental challenge that the researchers...

Common enzyme is a key player in DNA repair

...roficient and accurate replication of a particular kind of damaged DNA, reports Graham Walker, an HHMI pro...exceptionally skilled at copying over a particular kind of damage to the G nucleotide. When the main DNA replication machinery stalls at the damaged G, the ...

Findings advance use of adult stem cells for replacement bone

...use the stem cells to differentiate into the right kind of tissue cells ?like skin or bone ?and a porous scaffold, or template, that allows the tissue to grow into the correct shape. "Finding the right combination of growth factors is always a challenge," Mikos said. "It's not unusual for adult stem cell...

UF researchers develop ways to keep the bloom on the rose

...ur research is providing scientific basis for that kind of guarantee." ...

Australian first to save sight

...orneal donation facility in Australia offered this kind of service. "Our ability to store the corneas for longer means reduced surgery postponements and waiting time for people living with vision loss," Dr Pollock said. Corneal recipient Dorothy O'Kane, 61, welcomed the news after initially missing an o...

When good DNA goes bad

... an unusual shape called Z-DNA, it can lead to the kind of genetic instability associated with cancers such as leukemia and lymphoma, according to a study by researchers at The University of Texas M. D. Anderson Cancer Center. The study, issued in advance of the Feb. 21 edition of the Proceedings of the...

Supersized 'island' of resistance genes discovered in an infectious bacterium

...ng' any antibacterial challenge by setting up some kind of easily accessible 'shelves' to store the antiba...ghly resistant. "This is the first study of its kind to study the resistance mechanisms of a bacterial strain by whole genome sequencing," said Fournier....

Penguins waddle but they don't fall down, UH researchers say

...spite their side-to-side motion, to learn the same kind of stability as the penguin." Another application for this research involves the construction of sophisticated robots. Kurz said it is very expensive to construct a robot that can successfully adjust to side to side, or medial-lateral, motion. R...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...traction and display purposes and the first of its kind seen in the tyrannosaur's predatory family. The creature has been named "Guanlong wucaii" and translated loosely from Chinese, that's "crowned dragon five colors." An internationally known expert on the development and evolution of the vertebrate mu...

Mice lacking social memory molecule take bullying in stride

...gene therapy, the researchers injected mice with a kind of molecular magic bullet (using transgenic techniques and a virus) that selectively turned off BDNF expression in the social learning circuit. This exerted an antidepressant-like effect; the mice were spared from developing social avoidance behavior...

Lizard 'third eye' sheds light on evolution of color vision

...cells or photoreceptors, and they contain only one kind of pigment per cell - red, green, or blue. A color image results when light-triggered signals in the three different types of cone cells are compared by other nerve cells in the retina as well as the brain. The lizard's parietal eye photoreceptors ...

The giant protein titin helps build muscles

...ilmanns adds: "We discovered that telethonin has a kind of internal symmetry that lets it grasp two titin molecules running off in opposite directions. That's new. We've discovered other single proteins that can link to DNA molecules in 'palindromes', but this is the first time we have seen proteins thems...

A new way of looking at molecular motors

...ists ask the right questions and perform the right kind of experiments on myosins," Foth said. "In the long term, that could lead to new drug targets being discovered more quickly." Molecular motors run on tracks, like trains, using chemical reactions that involve the chemical compound adenosine triphos...

'Genetic network' guards against lethal DNA damage

...ne. The yeast cell is an excellent model for this kind of study because 25 percent of human disease genes are also found in yeast, according to Boeke. Therefore, the discovery of this network of genes could help to identify mutations whose combined deleterious effects cause human diseases, including canc...

Do plants have the potential to vaccinate against HIV?

Scientists have developed a new kind of molecule which they believe could ultimately lead to the development of a vaccine against HIV using genetically modified tobacco. Writing in Plant Biotechnology Journal, Dr Patricia Obregon and colleagues from St George's, University of London alo...

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

...done something wrong," he says. "We hope that this kind of research will help us get a handle on this condition and see which normal brain circuits have gone awry in people with OCD." The new finding does not have immediate implications for the treatment of OCD, Taylor cautions, but further research could...

Plant-derived vaccines safeguard against deadly plague

...st comparison study designed to test more than one kind of antigen during the same challenge. "The idea with any recombinant subunit vaccine is that you can pick and choose selective antigens that can confer protection and limit the potential for adverse reaction," said Mason. More than half the vaccin...

Unraveling the mysteries of poison

...rough the membrane ?often killing the cell. These kind of interactions had not been well investigated at a structural level ?even though scientists had made great strides studying ion channels, using x-ray crystallography. Scientists from the Max Planck Institute for Biophysical Chemistry in Göttingen, ...

Sex: It's costly but worth it. Just ask a microbe

... also reduce their mating ability. "There is some kind of balance out there between the cost and benefit of sex," says Xu. "And we are looking into that right now". ...

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