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Tag: "phenomena" at biology news

Nano-Probes Allow an Inside Look at Cell Nuclei

...nts the first time a biologist can image long-term phenomena within the nuclei of living cells," says Fanqing Chen of Berkeley Lab's Life Sciences Division, who developed the technique with Daniele Gerion of Lawrence Livermore National Laboratory. Their success lies in specially prepared crystalline semicondu...

Liposome finding implies electrical effect on cell development

...ng forth a stalk or root. Hayes believes that the phenomena may have significant implications for both cellular biology and for nanotechnology. "This finding might not only be important in its application to understanding life processes, but it has a potentially exciting practical application in the fabricati...

Gray wolves maintain the food chain in winter

...tions in range, reproductive success, and seasonal phenomena like migration. But, in a new study from the open-access online journal PLoS Biology (www.plosbiology.org), Christopher Wilmers and Wayne Getz show that the impact of climate change on many different species in Yellowstone Park can be buffered by a t...

Navigating an integrated yeast network

...ween macromolecules that can be tied to biological phenomena and may help represent more fundamental network design principles than do simple motifs. Zhang et al. integrated five different types of biological relationships found in the yeast Saccharomyces cerevisae: protein-protein interactions, genetic inter...

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

... t haplotype. The hypothesis was logical since the phenomena of transmission ratio distortion and sterility always mapped to the same regions within the t haplotype. To test this hypothesis, the Maine researchers closed in on a region of the t haplotype known to be involved in these phenomena. They used this ...

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

...onments that lack oxygen and carry out such unique phenomena as removing organic and metal pollution from groundwater,?Lovley said. Geobacter can live in the absence of oxygen because of its ability to transfer electrons outside the cell onto iron minerals, which are natural constituents of most soils. However...

NRL scientists detect 'milky sea' phenomena

...ite detection was achieved by NRL researchers, the phenomena had only been reported in ship's logs and their de... of human perception. Mariners have described the phenomena as giving the impression of sailing upon a field of snow or gliding over the clouds--all under the d...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

...ities of mankind and its interactions with natural phenomena are the driving force in global climate change. "Next we are hoping for follow-up satellite missions, in particular from geostationary orbit to monitor atmospheric pollution, which has a strong diurnal variation and thereby determine objectively th...

Climate change: The rice genome to the rescue

...te workshop, researchers mentioned El Niño weather phenomena that hit the Philippines in 1996-97 and caused a severe drought, resulting in a sharp drop in national rice production. Other examples focused on the impact of climate change and variability on gross domestic product, generally causing it to slip by ...

Marijuana-like compounds suppress the immune response

...CB2 may be involved in a wide range of physiologic phenomena related to immunity, although research on this function is still at an early stage. Among the possible immunological roles for CB2 is an involvement in the initiation of white blood cell migration to sites of infection and inflammation. In the Jo...

Extinctions linked to climate change

...es in tropical America is more evidence of a large phenomena that may affect broad regions, many animal species and ultimately humans, according to researchers at Oregon State University. A study being published Thursday in the journal Nature finds compelling evidence that global climate change created favora...

Possible brain hormone may unlock mystery of hibernation

...nation short. "One of the most curious biological phenomena in mammals is their ability to hibernate circannually, which allows them to survive unusually low body temperatures at or near freezing," said study author Takashi Ohtsu of Kanagawa Academy of Science and Technology in Japan. Scientists have attempte...

A new kind of mutation could explain numerous phenotypic variations in various species

...esearchers around the world in discovering similar phenomena for other phenotypes including hereditary diseases. ...

For crickets, parasitic flies can stop the music

...ann said although scientists have examined similar phenomena in other species such as guppies, it is rare to observe obvious female courtship behaviors. Female crickets, by contrast, actually mount the males, so it is easy to know what they are choosing. Also, she said, the complete absence of parasitic flies ...

First biomarker for human sleepiness identified in fruit flies

...ly the markers we develop will make these kinds of phenomena much easier to study." ...

Math model predicts cancer behavior

...rom computer simulations grounded in understanding phenomena at a smaller scale, have been a staple of chemistry, physics, and related engineering disciplines for a long time." Quaranta and Cummings expect to see this new way of thinking sweep through biology. "Particularly in cancer biology, we know so mu...

Linking DNA and histone methylation

...to understand how histone and DNA methylation, two phenomena that play a significant role in stem cell differentiation and cancer, can communicate with each other to turn genes off. " Although both histone and DNA methylation have long been recognized as hallmarks of euchromatic gene silencing, how these t...

Satellites shed light on global warming

...at scientists are eager to better understand these phenomena - and satellites provide both the indispensable validation of the theoretical hypotheses and the stimulus for new ideas," Cipollini said. Sea surface temperature (SST) is one of the most stable of several geographical variables which, when determ...

Bioluminescence at the service of a novel cerebral imaging technique

..., the new tracer can demonstrate new physiological phenomena related to calcium activity. Thus the activation by nicotine of pedunculate bodies (an important structure for learning and olfactory memory in the Drosophila) induces a secondary response which is delayed by about 10 to 15 minutes at the level of n...

How trees manage water in arid environments

...portant to understanding a range of water resource phenomena including predictions about water supplies, Brown said. "This research seeks to characterize the explicit relationship between water availability and photosynthetic activities of the vegetation. This paper is the first step in that process, and it il...

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