Impact of Meteorites, Drop in Sea Level Caused Mass Extinctions 65 Million Years Ago
...de 65 million years ago is closer to a resolution, with new research by scientists from UCLA and the Unive...period that include clams and squid-like creatures with shells called ammonites. "For the first time, we can estimate the relative importance of all...Duke's Russian Laser Making Ultraviolet Light And Gamma Rays
...m to produce gamma rays by collidingthe laser beam with the same electron beam that feeds it. Duke's FEL ...tudy the reaction backwards by bombardingoxygen-16 with gamma rays to produce carbon-12. Up to now, though, scientistshave been unable to study that reverse...Cornell Scientists Find Way To Boost Rice Crop Yield -- They'll Walk On The Wild Side
...versity plant breeders -- on a treasure hunt armed with genome maps -- have discovered genes in wild rice ...rnell assistant professor of plant breeding, along with other Cornell researchers are announcing their research in the journal Nature, (Nov. 21, 1996) in an...ITHACA, N.Y. -- Worried parents with greedy kids may now have the ultimate role model:...can't wait to share newly-discovered food sources with their kin. As reported in the November 1996 issue of Animal Behaviour (Vol. 51, pp. 957-69) by P...Sea Turtles Have Favorite Oceanic Routes
...colleagues tagged eight female leatherback turtles with small satellite transmitters designed to survive the crushing pressure of the ocean's deep water and buoyant enough to transmit a signal when a turtle reached the water's surface. Attaching the transmitters to the turtles was not easy: the pliable, ...Plants Have Future As Environmental Clean-Up Agents
...or us," Feyerharm said. Erickson and Davis, along with other K-State professors, arecontinuing research into bioremediation, both in areas of geneticresearch and practical application. The Great Plains/Rocky MountainHazardous Substance Research Center, a consortium of 14 universitieswith headquarters at ...KU Researcher Eyes The Rain Forest Through The Trees
...similar species can occupy." The lab was developed with a grant from the National Science Foundation's Experimental Program to Stimulate Competitive Research through the Kansas Science and Technology Advanced Research program. "In some countries there were incentives to cut down the forests and convert th......mance of identical twins, who share the samegenes, with that of fraternal twins, who share on average abou...ttle sooner orbecause parents interact differently with sons and daughters. Girls alsoappear to be more compliant and easier to test, Professor Reznick sai...Bacterial Protein Structure Hints At Mechanism Of A Class Of Premature Aging Diseases
...mplications for human disease because RTPinteracts with a class of proteins known as helicases, which have...as a road block to replication, actually interacts with the helicase protein. "That's a major controversy in this field," White said. Acompeting theo...Researchers Develop Model Using Birds As Indicator Of Wetlands Health
...eep very detailed records of what theysee. Working with Professor Styer, Coleman learned to identifyspecie... also hopes to refine themodel and extend his work with birds to other types of wetlandenvironments. For example, U.S. EPA researchers are interested inthe ...Two Long-sought Diabetes Gene Found
...d the Institute Pasteur de Lille, France, together with other investigators from Denmark, Japan and the Un... brothers and sisters and other relatives of those with diabetes and test methods to prevent the disease in those with a genetic propensity to it." The two ...Researcher Discovers Key Brain Center For Speech
...ssary for words and sentences. For example,someone with damage to the insula might sound tongue-tied over such wordsas "tree," pronouncing them instead as "dree" or "free." "We may have found an area that in the very least is signficantly relatedto the speech process if not a center for that function," s...No Such Luck: Nitrogen From Air Pollution Unlikely to Moderate Global Warming
Modern society pollutes the air not only with carbon dioxide, but also with large amounts of nitrogen-containing compounds released by the burning of fossil fuels and the use o...Optical Microscopy Shines Light On Biology
...mples at extremely high magnification. Dunn, along with Chad Talley, Lawrence doctoral student, and Gregor..." Dunn said. "With our tips, we vibrate vertically with respect to the sample so you don't get the large damping caused by the water." With the high sensiti...Siblicide In Nature: Study Of Galapagos Seabird Finds Death Can Ensure Species Survival
..."The masked booby parents seem to be collaborating with the first chick to get rid of the second chick," A...ario, but he would have been perfectly comfortable with these results."...Fast Measurement Technique Reveals Early Steps In Protein Folding
...f the folding sequence: whether the process begins with aninitial random collapse of the protein structure or with the forming ofhelixes. "The debate has been going on for decades," Gruebelesaid. "Now, with our fast...Florida Company Using ORNL Technology For Revolutionary Wheelchair
...DrugAdministration. Its cost should be competitive with conventional electricwheelchairs, he said. Funding for the research that led to this invention was provided by DOE'sBasic Energy Sciences. ORNL, one of DOE's multiprogram research facilities, is managed by LockheedMartin Energy Research Corp....Environmental Impact Statements Need To Be Made Easier To Decipher
...dited to presentthe same material more clearly and with computer-generated simulated photosthat gave "before and after" views of proposed changes. Understandinglevels jumped to more than 80 percent in each of the three areas of comprehensionmeasured in the initial tests. "The results offer considerable h...New Sensor Provides First Instant Test For Toxic E. coli Organism
...rnia at Berkeley, developed the sensors in concert with Berkeley postdoc Quan Cheng. The device is a modification of one originally described in the journal Science by former Lab scientist Mark Bednarski and Lab materials scientist Deborah Charych. All are current or former members of Berkeley Lab's Bi......g ritual, including its courting song. Here a male with a normalcopy of the gene lifts one wing and vibrat...corded on an oscilloscope below the drawing. Males with a slightalteration, or mutation, of the fru gene have subtle changes intheir songs. With severe mu...