Vital ocean prey play active role in environment
...ting a highly seasonal environment. Nicol's model separates the species into different life stages: larvae, juveniles, gravid females, and other adults. These groups are believed to remain geographically separate. In summer, adults remain close to the edge of the continental shelf, which allows them access to...New analysis of networks reveals surprise patterns in politics, the web
...nique developed at the University of Michigan that separates networks into communities yielded some surprises when used on real-world networks like political books, blogs, and metabolic systems. For instance, researchers used the algorithm to sort books sold on Amazon.com into left- and right-wing groups, and ...Rhesus monkeys in Nepal may provide new alternative for HIV/AIDS research
...geographic barrier of the Himalayan Mountains that separates Nepal and India from China. To facilitate the use of rhesus macaques in research while ensuring the conservation of Nepal's naturally occurring rhesus populations, the Nepali government enacted a policy in 2003 stipulating that only captive-bred ani...Gene screen for breast cancer better than pathologist's 'eye'
...a Sukumar, Ph.D. and Mary Jo Fackler, Ph.D., first separates cells from fluid, then sifts through the cells' DNA for chemical tags on certain genes associated with cancer. Reporting in the June 1 issue of Clinical Cancer Research, the scientists say they have tested their screening tool on breast fluid, in s...Engineer designs system to put wastewater to work
... proton exchange membrane inside the anode chamber separates the anode from the cathode. As the bacteria feed on the organic material in the wastewater they release electrons to the anodic electrode. These electrons then move to the cathodic electrode via a copper wire. The formed protons are transferred t...UC Davis study finds brain cell regulator is volume control, not on/off switch
...r precise measurements of quantity. The 'mass tag' separates the two samples--the experimental and control--on the mass spectrometry read out. Using this technique, postdoctoral fellow Kang-Sik Park revealed 16 sites where the protein is modified by the cell by via addition of a phosphate group. Further stu...BGSU biologist trying to crack microscopic code
... lets the butterflies through." A short distance separates the outer membrane and the rest of the organism. How the bacteria maintain their barrier when it's physically removed from the rest of the cell, and thus separated from its energy source, is where his interest lies. "The barrier is not self-sustain...ACS News Service Weekly PressPac -- August 23, 2006
...gness to change from a liquid to a gas. The OBDS separates high-volatility components from gasoline and stores them for use right after startup, until the engine and other components warm and become more efficient. The system would add about five pounds to a car's weight and less than $100 to its cost when i...CU, Scripps researchers provide evidence of how proteins fold
...r groupings combine. Using the same principle that separates oil and water, these molecules are hydrophobic -- they avoid water and associate with each other. In the water-based cell fluid, where long polypeptide chains are manufactured and released by ribosomes, the polypeptide chains rapidly fold up into the...High-value chemicals produced from ethanol feedstocks could boost biorefinery economics
... but at 250 to 300 degrees Celsius under pressure separates into acid and base components that can be used to dissolve both organic and inorganic chemicals. When the pressure is removed, the water returns to its normal properties. Gas-expanded liquids, such as carbon dioxide in methanol, provide a flexible...Study reveals mechanism for cancer-drug resistance
...ering with tubulin, which forms the structure that separates chromosomes as cells divide. "One of the properties of hemiasterlin that makes it attractive as a potential therapeutic is that it remains very toxic for cancer cells that express the multi-drug resistance protein, which is a major mechanism of dr...Gene involved in common birth defect also regulates skin biology
...distinctive mammalian structure of a palate, which separates the nasal airway from the mouth allowing a baby to suckle. In addition, it is fairly easy to create mutations in mice to study a particular gene's function. "Having an animal model for a major human birth defect like cleft lip and palate provides u...Ecosystem of vanishing lake yields valuable bacterium
...n the United States. The water in meromictic lakes separates into layers of differing mineral concentrations. The upper layer of Soap Lake is a little less than half the saltiness of the ocean, but more than 100-times saltier than river water. The bottom layer is more than twice as salty as the ocean and more ...End of deforestation in view? Experts advance new way to size up global forest resources
...hieved the greatest gains. "The Forest Identity separates nations into classes of expanding and shrinking forest that clarify the causes of changing forest expanse, timber, biomass, and carbon," says lead author, Pekka E. Kauppi of the University of Helsinki, Finland. The co-authors are Jesse H. Ausubel, R...Freshwater snails are surprisingly fast-moving invaders
...s, cars, and cattle to jump over the dry land that separates the riverways. "Obviously, "says Benot Facon (University of Lausanne), "little can be done to stop [the snails] from invading all Martinican rivers now." Landscape fragmentation is a common feature to many invasions, and even apparently continuous...Global warming will reduce ocean productivity, marine life
...is loaded with nutrients. This process effectively separates phytoplankton in the surface layer - which need light for photosynthesis - from the nutrients below them, which they also need for growth. The satellite data used in the study were from NASAs SeaWiFS satellite, or Sea-viewing Wide-Field-o...American scientist's research of life's first cells
...this case made of RNA) contained in a vesicle that separates the genome from the external environment. Chen describes how interactions between the RNA and the vesicle's membrane led to the emergence of certain basic cellular behaviors. For example, when the genome replicates inside a vesicle, osmotic pressure ...Spelling out cancer on the nanoscale
...c mouse models. The nano-fluidic system physically separates the proteins in very small capillary tubes and then uses antibodies for protein detection. It was also tested on human lymphoma samples. In previous work, the Felsher group had shown that inactivating MYC induces sustained tumor regression in m...Tracking sperm whales and jumbo squid
...ed the Sea of Corteza narrow stretch of ocean that separates the Mexican mainland from the Baja Peninsula. "The central Gulf of California is a uniquely advantageous location to study the behavioral ecology of sperm whales and their squid prey," the authors wrote. "Sperm whales are abundant year-round and ap...... to phenol, and in the end the highly desirable CO separates from the catalyst. "This could make novel, previously unknown chemistry of CO2 accessible," hopes Antonietti. "It may even be the first step in artificial photosynthesis."...