Tag: "migrating" at biology news
Genes expose secrets of sex on the side
...said, "That alone wouldn't say the Y chromosome is migrating
more, but if just half as many males are getting t...age as are females, then it implies more males are migrating
to do that." The pattern the researchers see in our genes doesn't require mass ...
Maine-based biophysics institute gets funding for first US-based 4Pi nanoscale microscope
...roscope to image large, multi-molecular structures migrating
within and across the cell membrane. For example, a recent discovery at MMCRI indicates that controlling the migration of fibroblast growth factor can prevent reocclusion of coronary arteries after angioplasty. We are confident that this fruitful col...
Climate change could doom Alaska's tundra
...c hare, mink, weasel, and lemming, and millions of migrating
waterfowl. In summer it can feature thousands of lakes and large marshy areas. According to Bachelet, despite some of the criticisms aimed at them, climate models appear to work better and achieve higher accuracy over longer rather than shorter...
'Anti-plume' found off Pacific Coast
... chemical composition, Dziak said. Finally, water migrating
downward through the Earth may be enough to trigger the growth of bacteria at startling depths. Last year, in an unrelated study, OSU oceanographer Martin Fisk and a team of researchers found bacteria in a hole drilled 4,000 feet through volcanic roc...
Sleepless over Seattle: Migrating songbirds forgo sleep but keep their wits
...ss journal PLoS Biology, suggests such nocturnally migrating
songbirds simply skimp on sleep--but without the d...the birds' performance. These results suggest that migrating
songbirds simply slash their sleep time rather than "sleepwalking" through their migrations. The mec...
UW study: Migrating birds offer insight into sleep
...orders of various kinds. In addition, sleep in the migrating
birds was similar to sleep changes that typically ...t their performance. The researchers theorize that migrating
songbirds have developed the ability to apparently reduce their need for sleep temporarily, without ...
Asian bird flu became highly pathogenic through continued circulation and gene swapping
...hough these deadly viruses were isolated from dead migrating
birds, we don't know if the birds are actually spreading H5N1," Webby said. "We must do further research to find out, since migratory birds could conceivably spread highly pathogenic H5N1 throughout the rest of Asia and into Europe and the Americas."...
UCSD undergraduates participate in collaborative studies abroad on cyberinfrastructure
...good Marshall College at UCSD, is concentrating on migrating
code from a camera at UCSD's National Center for Microscopy and Imaging Research (NCMIR) to the same camera on the Osaka microscope. Khoshabeh and Geist are working with professors Shimojo and Toyokazu Akiyama in Osaka, as well as a team of UCSD ment...
Ecology drives the worldwide distribution of human diseases
...sease, with diseases once relegated to the tropics migrating
to temperate zones, for example. Identifying the links between ecology and disease, however, could lay the foundation for effective preventive strategies....
UNC scientists block cellular enzyme activity involved in cancer progression
...responded to increased expression of normal FAK by migrating
faster, the mutantFAK was unable to provoke any change in movement from breast cancer cells. "Our mutant appears to be deficient for turning FAK on and making cells move," Schaller said. The positively charged region identified in this study seems to...
...y, new advantages for predators, and death of some migrating
birds. The sources of ecological light pollution range from street lights to buildings "to flares on offshore oil platforms and even lights on undersea research vessels." They suggest more research on the effects of artificial night lighting on or...
UF study: Barren Siberia, of all places, may be original home to animal life
...ent at the South Pole about 580 million years ago, migrating
north toward the equator for about 80 million years. The scientists' analysis suggests that a prominent theory holding that the continents moved far more rapidly is wrong. It also suggests that trilobites, the long-ago forbearers of crabs and lobster...
Scientists report on the current state of INEEL's nuclear waste contamination
...ction of waste into the aquifer and from compounds migrating
from waste sites and disposal ponds located near the soil surface, through the vadose zone, which is the mostly unsaturated zone between the soil surface and the permanent groundwater table. The research papers contained in this special issue of VZJ ...
Lion attacks on livestock in Africa are significant but manageable
...e Serengeti occurs during the dry season, when the migrating
herds of zebra and wildebeest leave to follow the rains; livestock then become far more tempting to the resident carnivores. "This suggests that lions target livestock if native prey are inaccessible, wherever and whenever that may occur," Dr. Kays s...
Jefferson researchers uncover biochemical clues to how cells migrate in embryos
...rotein that needs a lipid added in order to enable migrating
cells to find their home." He and his team currently are trying to identify this mystery protein. It is also possible that this pathway is important in cancer metastasis. "It's a commonly held view among scientists that many pathways common to cancer...
Human migration tracked in Stanford computer simulation
STANFORD, Calif. - Early humans migrating
from Africa carried small genetic differences like...mputer model to simulate how mutations spread in a migrating
population. The results of this work are published in this week's online issue of Proceedings of the...
Ancient DNA mutations permitted humans to adapt to colder climates, UCI researchers find
...ial DNA (mtDNA) of human cells may have helped our migrating
ancestors adapt to more northerly climates, and ultimately link people with this ancestral history to specific diseases. Found outside the cell's nucleus, mitochondria are the power plants of cells that are responsible for burning the calories in our...
Metastasis of colon cancer cells reversed in vitro
...ring tissues until it enters the bloodstream. This migrating
cancer cell can, in time, form a new tumor by entering distant tissue via the bloodstream and multiplying there. Ben-Ze'ev's team discovered that when such a colon cancer cell becomes surrounded by other such cells in a crowded environment (whether...
New roles for protein modifications in cell migration
... Interactions between the basement membrane of the migrating
gonad and that of the body wall are one of the key...ecreted into the body cavity where it binds to the migrating
gonadal tip cells. Distal tip cells in worms engineered to lack the MIG -17 protein fail to steer ce...
Scientists decode DNA of bacterium that cleans up uranium contamination and generates electricity
...d chromium) from groundwater, preventing them from migrating
to wells or rivers where they may pose a risk to humans and the environment. The analysis of the genome sequence revealed a number of capacities that had not been previously suspected from past research on this microbe. "We've provided a comprehen...
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