DNA barcode finds four new bird species
...it to identify the stomach contents of animals and reconstruct food cycles. Other uses include identifying birds that fly into airplane engines and testing for protected fish species, for example, that sometimes make their way to market. It also works for identifying organisms at different stages of life, such a...Genetic analysis rewrites salamander's evolutionary history
...g Bayesian statistical techniques, she was able to reconstruct a "robust" family tree of the Plethodontid salamanders. One feature that has been used to classify salamanders is their larval stage, much like the tadpole stage of frogs. The ancestral Plethdontid salamanders, like all other salamanders, apparently ...Computer imaging of Archeopteryx skull suggests this dinosaur-bird link could fly
...cts that marred the images so the scientists could reconstruct the size and the features of the brain using 3-D modeling software. The upper bones that covered the creature's braincase were overlapped in the squashed fossil. Computer modeling allowed the scientists to reposition the skull bones next to each oth...Manatee population rising in some regions, likely stalled or declining in others
...ividual adult females from scar patterns, they can reconstruct the female's reproductive history and estimate reproductive rates. Kendall and colleagues found that adult females in the Northwest region without a dependent first-year calf have a 43 percent probability of producing a calf over the next year; this...Funding to commercialize technologies of UC San Diego engineers tops $1.2 million
...(CT) scans and magnetic resonance imaging (MRI) to reconstruct a three-dimensional model of the abdominal aorta, including AAA. A finite-element computer code incorporating non-linear elastic effects and all physiological and mechanical information of the arterial wall will be developed to compute the distributi...$5.5 million awarded to tree-ring research and climate studies
...e on a year-by-year time scale. This allows us to reconstruct more complete records of variations and interrelat...hroughout 'Monsoon Asia' will enable scientists to reconstruct and analyze regional climate histories over timeframes of centuries to millennia. The data will al...Botulinum toxin structure offers clues for vaccines/treatments
...f the crystal, the scientists can work backward to reconstruct the shape and arrangement of the atoms in the molecule. The scientists also did experiments to test the ability of type E neurotoxin and their lab-made mutant to cleave the target protein that prevents neurotransmitter release during a botulism infec...Archaeologists announce discoveries at the ancient Maya site of Waka' in northern Guatemala
... the Waka' Archaeological Project is attempting to reconstruct the history, and the story, of this ancient city. Once an important center of political, social and economic activity, the site of Waka' is once again at a strategically important crossroads, central to the efforts of the K'ante'el Alliance to save t...UCSD bioengineers develop first genome-scale computational model of gene regulation
...tabolism. He scoured the scientific literature to reconstruct an E. coli model incorporating all known data about regulatory network components, their functions and their actions. The UCSD model now includes a network for 1,010 genes, including 104 regulatory genes, whose products together with other molecules...Seabed secrets in English clay
... The finding suggests that use of fossils to reconstruct environmental records of the past needs to be interpreted with greater care because details from sedimentary deposits, as Kenig and his colleagues found, suggest that these fossils may only represent end-member environments. ...UC San Diego bioinformatics experts help reconstruct the genomic makeup of our ancestors
...at Genomes." "Having the third genome allows us to reconstruct the putative genomic architecture of our mammalian...ology of the species. "The rat genome allows us to reconstruct the genome's architecture, especially for the sex X chromosome, which doesn't exchange genetic mater...Death and resurrection on Caribbean reefs
...ntal consulting firm in Florida, analyzed cores to reconstruct the ecological history of a reef system in Jamaica. They found that the decline of coral in recent decades was unprecedented in the last thousand years. Richard Aronson, a Senior Marine Scientist at the Sea Lab, was one of the authors of the study. ...Ontario researchers see increase in taste and odour-causing algae problems
...is of sediment cores, the researchers were able to reconstruct the history of these lakes, and compare the distribution of chrysophyte algae over different time periods. Their study shows that substantial increase began in the 1930s-1950s, with the sharpest rise over the past two decades. "This is a classic exam......ut which abounds in asteroids. -We have managed to reconstruct the event month by month, with a very high time resolution, says Vivi Vajda. During a very short period - from between a few months to a couple of years the fungi and other saprophytes which live on dead organisms must have been the dominating life ...Paleofire database puts fire-scar and charcoal data online
...e (IMPD) is a cooperative effort between those who reconstruct proxy records of past fire events from tree-ring evidence and from charcoal layers in lake sediments. The database is on the National Oceanic and Atmospheric Administration (NOAA) Web site http://www.ngdc.noaa.gov/paleo/impd/ The paleofire database...Scientists at Scripps Research Institute describe structure of receptor on surface of 1918 flu virus
...gy were able to piece together enough fragments to reconstruct the sequence of the gene that coded for the viral protein hemagglutinin. These are the oldest viral sequences that have been reconstructed to date. Then Basler and Palese at Mount Sinai Institute of Medicine in New York managed to construct an expre...Scientists report first sequencing of environmental genome
...the most complete draft genomes, they were able to reconstruct nearly the entire metabolic cycle. Already they have determined how the microbes share tasks in the isolated microbial community of the mine. The Leptospirillum group II bacteria fix carbon and produce the biofilm that protects them and keeps them af...'Elves' makes protein crystallography easier
...mera, so that scientists can calculate backward to reconstruct the crystal structure and thus the arrangement of atoms in the protein. Elves is comprised of programs such as Wedger, Scaler, Phaser and Refmacer that automatically index the spots, locate heavy atoms in the protein, determine phase information th...Earliest evidence of humans affecting aquatic ecology in Canada, United States
...il that permanently altered the area's ecology. To reconstruct this history, the team collected sediment cores from the bottom of the pond and analyzed the fossil "markers" (tiny algal cells) preserved in each layer. As sediments slowly accumulate over time, they represent an archive of past environmental change...Ancient DNA mutations permitted humans to adapt to colder climates, UCI researchers find
...125 human mtDNA sequences from around the world to reconstruct the mutational history of the human mtDNA back to the original mtDNA, known as the mitochondrial Eve. Wallace is the director of the Center for Molecular and Mitochondrial Medicine and Genetics at UCI and is a faculty member in the Departments of E...