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Tag: "striking" at biology news

Living with salt

...ives, but with a few obvious differences. The most striking of these is in the electrical charges on the proteins' surfaces: Charges on the salt-tolerant enzyme are uniformly negative (though not as intensely negative as those in halophilic proteins), while the surfaces of carbonic anhydrases that don't toler...

Scientists uncover new clues about brain function in human behavior

...ructure deep in the brain, may be involved in this striking pattern of behavior. The amygdala's response and regulation are thought to be critical to people's social behavior through the monitoring of daily life events such as danger signals. Scientists know from animal studies that damage to the amygdala imp...

Experimental shingles vaccine proves effective in nationwide study

...design, oversight and conduct of the trial. "These striking results indicate for the first time that we can use a vaccine to prevent shingles, one of the most common and debilitating illnesses of aging. And among vaccine recipients who did get shingles, the episodes generally were far milder than they otherwi...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...nd 20 million years ago, Wernegreen's group made a striking observation: All 635 genes shared between the two ...ome Research article, long-term genome stasis is a striking characteristic of insect mutualists, and it may severely constrain the evolutionary potential of the...

Sudden change in social status triggers genetic response in male fish, study finds

... neurobiology at Duke University. "What I think is striking about this paper is how rapid the social change, the physiological sign of dominance and the associated genomic response occur." Opportunity knocks "These results show that the rapid behavioral responses to social opportunity were matched by a...

First big influenza genome study reveals flu evolution

...n, Ghedin says, the dynamic influenza virus showed striking diversity, with variants frequently swapping genetic material. In fact, the researchers report, one such event explains why the 2003-04 flu vaccine offered less protection than usual. Every flu season, a global network of scientists attempts to id...

New study examines how sense of smell affects mating and aggression in mice

..., UCSF assistant professor of anatomy. "There are striking genetic and neuroanatomic similarities between mice and humans. We hope that such basic knowledge of how the brain functions will eventually be useful in understanding how the human brain generates behaviors in humans," he adds. The UCSF study focu...

Bacteria that cause tooth decay able to survive without important biochemical pathway

...could survive without the SRP pathway was the most striking finding for scientists in the membrane protein insertion field," said Ross E. Dalbey, Ph.D., a professor of chemistry at The Ohio State University. "The big question now is discovering how these proteins are targeted in the absence of the SRP pathway...

Biologists discover new pathway into plant cells

...hat the biological mechanism discovered here bears striking similarity to the way proteins can function in mammalian cells ?scientists say they may have found a characteristic that has been preserved for more than 600 million years, when plants and animals diverged from a common ancestor on their separate evo...

Scientists fetch useful information from dog genome publications

...ponsible for determining skeletal size in dogs. A striking aspect of these loci is that they control functionally related skeletal traits. "For example," says Lark, "one of the QTL that we identified controls both pelvic size and metacarpal length, but the two traits are inversely correlated. This could re...

Dog genome sequenced

...ponsible for determining skeletal size in dogs. A striking aspect of these loci is that they control functionally related skeletal traits. "For example," says Lark, "one of the QTL that we identified controls both pelvic size and metacarpal length, but the two traits are inversely correlated. This could re...

Predators keep the world green, ecologists find

...ter the ground, and in places lie in heaps. But in striking contrast with this scenario of destruction, the medium islands presented a relatively normal appearance." Besides proving that the green world hypothesis is correct, Terborgh's team's results have important implications for the debate raging in many...

Free HIV tests cheaper than charging when goal is preventing AIDS

...s and office supplies. The study results were so striking that the Duke researchers sought additional funding to continue free testing in partnership with a community-based AIDS service organization in Moshi, Tanzania, said lead author Nathan Thielman, M.D. They have since tested more than 4,000 people, he ...

Pleasing plant shapes explained by new computer model

...ar at regularly-spaced intervals. This creates the striking spiral patterns of seeds observed in sunflowers, daisies, and many other plants. Other patterns, such as branching at right angles observed in lilac branching, can be also be simulated using different parameter values. The subject of the study was ...

Evolutionary biology research techniques predict cancer

... diversity within tumors," Maley says. The found a striking correlation between increased diversity of tumor cells and progression to cancer. For every additional cell variety detected in a tumor, the patient was twice as likely to progress to cancer. Maley suggests that genetically diverse tumors have a hig...

Researchers create pigs that produce heart-healthy omega-3 fatty acids

... diversity within tumors," Maley says. The found a striking correlation between increased diversity of tumor cells and progression to cancer. For every additional cell variety detected in a tumor, the patient was twice as likely to progress to cancer. Maley suggests that genetically diverse tumors have a hig...

Invasive species harms native hardwoods by killing soil fungus

...h they depend for growth. The work, which provides striking evidence for a unique process by which invaders harm native species, was conducted by researchers at Harvard University, the University of Guelph, the University of Montana, Purdue University, and the UFZ Centre for Environmental Research in Germany....

Honeybee decision-making ability rivals any department committee

...e swarm lifts off toward its new home. "This is a striking example of decision making by an animal group that is complicated enough to rival the dealings of any department committee," said Seeley, a professor of neurobiology and behavior at Cornell and lead author of the article. For more than 10 years, See...

Sea coral's trick helps scientists tag proteins

...ered that certain wavelengths of light could cause striking spectral changes in some proteins, which could convert from dark to light or change colors. Later, the Russian scientist and his colleagues discovered that the GFP-like protein they isolated from Dendronephthya had this capacity to change color, but ...

Molecule by molecule, new assay shows real-time gene activity

...ntly tagged molecules in single cells -- providing striking real-time footage of the birth of individual new protein molecules inside -- greatly increases scientists' precision in probing genetic activity. Using the new assay, described this week in the journal Science, researchers led by Harvard's X. Sunney...

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