Tag: "trace" at biology news
Disabling a sensory organ prompts female mice to act like male mice
...om a mechanistic point of view," she said. "We can trace
signaling events in the brain and see how brain areas controlling sex-specific behaviors are connected to each other."...
Report recommends off-site disposal of secondary waste
...lutions contain salt, water, suspended solids, and trace
amount of heavy metals. The committee found that this type of waste is already disposed of off-site, and recommended that CMA continue to actively dispose of as much brine solution or salts off-site as possible. Dunnage includes pallets and wood...
UB scientist discovers novel iron-copper alliance
BUFFALO, N.Y. -- Iron is the workhorse of trace
minerals. An essential component of red blood cel...t iron is only one half of an all-important duo of trace
minerals -- the other being copper -- that work in tandem to maintain proper iron balance, or homeos...
Manchester University helps with pharaoh DNA analysis
...se III, who on succession tried to destroy every trace
of her reign. However, in 1903, a British archaeologist, Howard Carter, excavated what became known as tomb KV60 and discovered two mummies one in a coffin inscribed for a royal nurse, the other stretched out on the floor. In June, Dr Zahi Hawas...
Sea anemone genome provides new view of our multi-celled ancestors
...ot seen before in earlier forms of life. "We can trace
the evolutionary history of roughly 80 percent of eumetazoan genes even further back in time to before the origin of animals, since related genes are found in fungi, plants, slime molds and other non-animals," said Rokhsar. "Only 20 percent of the an...
World Wildlife Fund warns against iron dumping experiment near the Galapagos Islands
...s proposed--would probably be accompanied by other trace
metals that would be toxic to some forms of marine life. In the waters around the Galapagos, some 400 species of fish swim with turtles, penguins and marine iguanas above a vast array of urchins, sea cucumbers, crabs, anemones, sponges and corals....
University of Arizona launches major scientific research initiative at Biosphere 2
...ors, including water, carbon dioxide, temperature, trace
gases and pH. Inside, the team will control temperature and rainfall to mimic the environmental conditions right outside the chamber. Just outside the chamber, the researchers will build replicas of the indoor hill slopes and conduct the same exper...
Ice Age extinction claimed highly carnivorous Alaskan wolves
...ed type of wolf appears to have vanished without a trace
some 12,000 years ago. The study, which will be ...s multifaceted approach allowed the researchers to trace
the ancient wolves genetic relationships with modern-day wolves, as well as understand their role in...
Don't overlook urban soil
... and heavy metal levels. Rather, researchers found trace
metals to be correlated with surface rock types in...strong relationship between surface rock types and trace
metals suggests that the transport of soil within the Baltimore landscape occurred at short distance...
Potent possibilities for parasite attack
...nly five genes in the L. major genome for which no trace
could be found in the other two species. By contrast, in Plasmodium, which causes malaria, about 20% of genes differ between related species. "Clearly there must have been considerable evolutionary pressure over time to maintain the structure and s...
DNA clues to inform conservation in Africa
...nt habitats researchers found they can potentially trace
which ecoregions are most similar and establish which are the most unique in evolutionary history. Professor Mike Bruford, School of Biosciences, co-author of the study, said: "The conservation of habitat or ecoregion biodiversity is one of our gre...
Jaap Sinninghe Damst awarded the Vernadsky Medal for innovative use of biomarkers
...s found in sediments. With these it is possible to trace
back life to its origin. These biomarkers are a kind of organic fossil and unlike normal fossils which only show higher organisms, like dinosaurs, these organic fossils show chemical remains of microbial life like algae, bacteria and archaea. "This r...
Plants tag insect herbivores with an alarm
..., highly active plant defense signals can occur at trace
levels, too small to easily detect or isolate. ...al secretions. When the worm next feeds on cowpea, trace
amounts of inceptin recontact the wounded leaf and alerts plants to generate a burst of defensive ph...
The opossum genome sequence casts light on evolution, immunity and disease
...of these molecular jigsaw puzzles that can help us trace
the influence of TEs in the development and function of modern genomes." Contact: Andrew J. Gentles, Ph.D. Stanford University, Stanford, CA, USA firstname.lastname@example.org +1-650-725-3121 Reference: Gentles, A.J. Wakefield, M.J., Kohany, O., Gu, Wanj...
Nemo comes home with a tag
... populations by 'tagging' adult fish with a minute trace
of a harmless isotope, which they then pass on to their offspring. The team's findings were announced in the international journal Science today, and contain three scientific world-firsts: the first field-based use of a new method of tagging...
Salk scientist Ursula Bellugi elected to National Academy of Sciences
...lopment, one of the first of its kind, to help her trace
the influence of individual genes on the development and function of the brain. Led by Bellugi, the researchers are looking to Williams syndrome to provide clues to some of the mysteries of the genetic basis of behavior.This puzzling genetically base...
Tree rings show elevated tungsten coincides with Nevada leukemia cluster
...Research to see if LTRR researchers could help him trace
Fallon's environmental history backwards in time. Sheppard, who works in dendrochemistry, was intrigued. He suggested combining tree-ring studies with air sampling. The tree corers are hardened steel, so he had to figure out how to eliminate po...
Academy paleontologist and Alaska artist in line for natural history awards
...onian Age (375-365 million years ago) fossils that trace
the evolution of limbed animals. Daeschler received his Ph.D in geology from the University of Pennsylvania in 1998. For more information on Daeschler's Arctic discovery see www.ansp.org/research/biodiv/vert_paleo/paleonunavut.php . Ray Troll, an ar...
More nutritious, less toxic
...ere fed the same amount of algae contaminated with trace
amounts of methylmercury; however, one group's alg...odies. While normally present in the water only in trace
amounts, methylmercury presents a serious health hazard to humans due to biomagnification, a process...
Scientists track impact of Asian dust and pollution on clouds, climate change
...n of industrial emissions (such as soot, smog, and trace
metals) and dust from storms in regions such as Central Asia's Gobi Desert. The plumes can alter global temperatures by interacting with large-scale, mid-latitude cloud systems over the Pacific that reflect enormous amounts of sunlight and help reg...
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