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Tag: "can" at biology news

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...ic chromosomes with horizontally transferred genes can account for changes in the cell surface to adapt t...n such tiny cells. There are many mechanisms that can account for species formation in photosynthetic phytoplankton, and this is just one of the major pie...

Mice with a migraine show signs of brain damage

...ucial for migraine sufferers to do everything they can to prevent their headaches. While avoiding severe pain has long been a motivating factor, the scientists say the risk of brain damage makes it imperative to prevent the headaches, by avoiding a person’s triggers for the headaches and by using medicat...

Catching cancer's spread by watching hemoglobin

In an advance that can potentially assist cancer diagnosis, a new optical...echniques). Clinically, the imaging technique can potentially be used to detect the spread of cancer, since angiogenesis—the growth of new blood vesse...

How to look at dinosaur tracks

...ell-preserved vertebrate tracks in the rock record can be an invaluable source of information about foot ... less than perfectly preserved, and sometimes they can be barely recognizable as tracks at all.? With this in mind, Milàn and Loope sought to describe an...

A cherry on top: Tart cherries may alter heart/diabetes factors

...ys. "But there is still a long way to go before we can advocate any course of action for humans. Still, t...cholesterol and decreased response to insulin that can lead to cardiovascular disease and Type 2 diabetes. Meanwhile, the measure of PPAR messenger RNA ...

Machine preservation may promote more organ sharing

...ing kidneys on a portable pump, preservation times can be safely extended to permit more time for sharing...f Surgeons. In addition, Stratta said, the pump can be used to project the kidney’s initial function ?allowing for more appropriate matching of donor or...

'Personality-gene' makes songbirds curious

...heir level of curiosity. "The personality trait can be an important predictor of how individuals will respond to predictable and unpredictable changes in their environment and how well they cope with these changes", explains Bart Kempenaers. "If we want to understand the ecological and evolutionary im...

Scripps research team sheds light on long-sought cold sensation gene

...e for this facet of cold sensation. Though cold can be unpleasant or painful under certain circumstances, it can also deaden pain, as illustrated by icing an injury to relieve pain. To test this side of cold sensa...

Technique monitors thousands of molecules simultaneously

..., is doing this so that the electrodes on the chip can be used to monitor the biological behavior of up t...mber of the molecular library by an electrode that can then be used to monitor its behavior. The electrochemically addressable chips being used represent...

Protein enables discovery of quantum effect in photosynthesis

...ike characteristic of this energy transfer process can explain its extreme efficiency, in that vast areas of phase space can be sampled effectively to find the most efficient path for energy transfer. "We have a very deta...

'Insulator' helps silence genes in dormant herpes virus

...ng an insulator in early latency, the Herpes virus can protect this one small region of the genome from s.... By establishing chromatin boundaries, insulators can limit the range of action of other DNA elements that work to activate, or "turn on," the genes. R...

How the brain's backup system compensates for stroke

... new insight into how the brains of stroke victims can quickly reorganize to enable the beginning of reco...ing circuit is impaired, healthy cortical networks can flexibly reconfigure processing in a way that is rapid, functionally-specific, and preserves behavio...

Peramivir protects mice from lethal H5N1 infection

...pected, since onset of symptoms in infected humans can be delayed," said David A. Boltz, Ph.D., a postdoctoral fellow in the laboratory of Robert G. Webster in the Infectious Diseases department at St. Jude. "The drug could also be given as a preventive measure during an outbreak to decrease the risk of ...

pHLIP, a novel technology to locate and treat tumors

...agment, called “pHLIP?(pH (Low) Insertion Peptide) can be injected into the abdomen of a mouse, find its ...anism is general, and since even very small tumors can be targeted, there is an exciting array of possible applications for pHLIP,?said Donald Engelman , ...

Amphibians in losing race with environmental change

...es - the massive, worldwide decline of amphibians can best be understood by their inability to keep pace...d the inability of species to adapt quickly enough can explain most of the causes that are leading one species after another of amphibians into decline or ...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...h suggests that those animals that move to islands can strongly affect the sensitive animal communities o...had found that islands?limited areas and isolation can reduce predation and competition pressures. As a result, island animals were able to reach exceptio...

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

...ster 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 oyster con...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...f bacteria that in relatively small concentrations can kill insects - between 10-100 cells of it are typically enough ?but most are harmless to humans and can be used as a biological control mechanism to replace pesticide use. The researchers, from the un...

The sound of proteins

...lanine are both assigned a G major chord, but they can be distinguished because the notes in the chord are arranged differently. This means the resulting music has a 20 note range spanning over 2 octaves, but with just 13 base notes. The team find their music more melodic and less ‘jumpy?than previou...

US control strategies may make flu epidemics worse, UCLA study shows

...e models have shown whether this critical coverage can actually be reached. What has been missing, accord... characteristics, "memory and how adaptable people can be," Blower said. "These characteristics drive human behavior." Blower and her group used people'...

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