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| Newswise: SciNews http://www.newswise.com/libraries/scinews/ Newswise: Latest Science News, updated hourly. Newswise specializes in delivering the knowledge-based news behind tomorrow's headlines from the world's leading research institutions directly to journalists and to the public. en-us Copyright 2009 Newswise Newswise 144 27 http://www.newswise.com/ http://www.newswise.com/images/nw_logo.gif How Bed Bugs Outsmart Poisons Designed to Control Them http://www.newswise.com/articles/view/547929/?sc=rssn Fri, 09 Jan 2009 05:00:00 EST Bed bugs have made a big comeback recently, especially in urban centers. In the first study to explain recent failure to control these blood-sucking pests, toxicologists show how some bugs have developed resistance to pyrethroid neurotoxins, in particular deltamethrin, that once kept them in check. Hydrocarbon Afterglow Reveals Reproductive Cheaters http://www.newswise.com/articles/view/547948/?sc=rssn Thu, 08 Jan 2009 20:00:00 EST An 'honest indicator' has been discovered by a scientific team at Arizona State University that reveals reproductive cheating. But before you run out to buy an infidelity identification kit, know that it only works for ants. Mosquitoes Create Harmonic Love Song Before Mating http://www.newswise.com/articles/view/547940/?sc=rssn Thu, 08 Jan 2009 17:05:00 EST That pesky buzz of a nearby mosquito is the sound of love, scientists have known for some time. But a new Cornell study reports that males and females flap their wings and change their tune to create a harmonic duet just before mating. Carbon Nanotube 'Ink' May Lead to Thinner, Lighter Transistors and Solar Cells http://www.newswise.com/articles/view/547925/?sc=rssn Thu, 08 Jan 2009 15:10:00 EST Using a simple chemical process, scientists at Cornell and DuPont have invented a method of preparing carbon nanotubes for suspension in a semiconducting "ink," which can then be printed into such thin, flexible electronics as transistors and photovoltaic materials. Half of World's Population Could Face Climate-Induced Food Crisis by 2100 http://www.newswise.com/articles/view/547796/?sc=rssn Thu, 08 Jan 2009 14:00:00 EST New research shows that rapidly warming climate is likely to seriously alter crop yields in the tropics and subtropics by the end of this century and, without adaptation, will leave half the world's population facing serious food shortages. Northeastern Wins Multi-Million Dollar Grant to Develop Critical Infrastructure Sensing Technology http://www.newswise.com/articles/view/547917/?sc=rssn Thu, 08 Jan 2009 12:55:00 EST Northeastern University has been awarded a $9 million federal research grant to develop new multi-sensor technology systems for cars and trucks that will allow for real-time assessment of road and bridge infrastructure across the country. Scientists Discover an Ancient Odor-Detecting Mechanism in Insects http://www.newswise.com/articles/view/547906/?sc=rssn Thu, 08 Jan 2009 12:00:00 EST A newly discovered family of receptors in the fly nose fills in a missing piece of the insect olfactory system -- and also suggests a new role for a class of receptors long believed to be confined to the depths of the brain. Decline of Carbon Dioxide-Gobbling Plankton Coincided with Ancient Global Cooling http://www.newswise.com/articles/view/547900/?sc=rssn Thu, 08 Jan 2009 10:25:00 EST The evolutionary history of diatoms -- abundant oceanic plankton that remove billions of tons of carbon dioxide from the air each year -- needs to be rewritten, according to a new Cornell study. The findings suggest that after a sudden rise in species numbers, diatoms abruptly declined about 33 million years ago -- trends that coincided with severe global cooling. Hind Wings Help Butterflies Make Swift Turns to Evade Predators http://www.newswise.com/articles/view/547899/?sc=rssn Thu, 08 Jan 2009 10:25:00 EST New tires allow race cars to take tight turns at high speeds. Hind wings give moths and butterflies similar advantages: They are not necessary for basic flight but help these creatures take tight turns to evade predators. UT Southwestern Scientist Honored Among Best in Texas Research http://www.newswise.com/articles/view/547901/?sc=rssn Thu, 08 Jan 2009 10:00:00 EST Dr. Rama Ranganathan, professor of pharmacology at UT Southwestern Medical Center, was recognized today as one of the state's top rising stars in research by The Academy of Medicine, Engineering and Science of Texas (TAMEST). Conference to Learn About Sun's Bubble in Stuff Between the Stars http://www.newswise.com/articles/view/547891/?sc=rssn Thu, 08 Jan 2009 00:00:00 EST The first report on data from NASA's Interstellar Boundary Explorer (IBEX) satellite, which is measuring the size and shape of the sun's "bubble" in space, is scheduled to be presented this weekend at a conference in Hawai'i. Call for Nominations: $75,000 Prize for Contributions to Women's Health http://www.newswise.com/articles/view/547878/?sc=rssn Wed, 07 Jan 2009 15:00:00 EST Nominations are now being accepted for the 2009 Society for Women's Health Research Medtronic Prize for Scientific Contributions to Women's Health. The annual $75,000 prize recognizes a woman scientist or engineer in early or mid-career for her contributions to women's health. Scientists Find Evidence of Asteroids with Earth-Like Crust http://www.newswise.com/articles/view/547877/?sc=rssn Wed, 07 Jan 2009 15:00:00 EST Two rare meteorites found in Antarctica two years ago are from a previously unknown, ancient asteroid with an outer layer or crust similar in composition to the crust of Earth's continents, reports a research team primarily composed of geochemists from the University of Maryland. Lost in Translation http://www.newswise.com/articles/view/547863/?sc=rssn Wed, 07 Jan 2009 13:00:00 EST The enzyme machine that translates a cell's DNA code into the proteins of life is nothing if not an editorial perfectionist. Hubble Finds Stars that Go 'Ballistic' http://www.newswise.com/articles/view/547793/?sc=rssn Wed, 07 Jan 2009 12:20:00 EST Resembling comets streaking across the sky, these four speedy stars are plowing through regions of dense interstellar gas and creating brilliant arrowhead structures and trailing tails of glowing gas. The stars in these NASA Hubble Space Telescope images are among 14 young runaway stars spotted by the Advanced Camera for Surveys between October 2005 and July 2006. The images will be presented today at the American Astronomical Society meeting in Long Beach, Calif. Low-Level Herbicide Use Can Damage Potato Reproduction http://www.newswise.com/articles/view/547857/?sc=rssn Wed, 07 Jan 2009 12:00:00 EST A recent study examining the development and reproduction of plants and the effects that herbicides can have upon those processes has shown that treating potato plants with low levels of herbicide application can have a detrimental effect on crop yields. Polarized Light Pollution Leads Animals Astray http://www.newswise.com/articles/view/547700/?sc=rssn Wed, 07 Jan 2009 09:00:00 EST Human-made light sources can alter natural light cycles, causing animals that rely on light cues to make mistakes when moving through their environment. In the journal Frontiers in Ecology and the Environment, a collaboration of ecologists, biologists and biophysicists has now shown that in addition to direct light, cues from polarized light can trigger animal behaviors leading to injury and often death. Powdered Rodents Show Big, Old Mice Spread Hantavirus http://www.newswise.com/articles/view/547764/?sc=rssn Tue, 06 Jan 2009 19:00:00 EST University of Utah researchers dusted wild deer mice with fluorescent pink, blue, green, yellow and orange talcum powders to show which rodents most often fought or mated with others and thus were most likely to spread deadly hantavirus. The study identified bigger, older mice as the culprits. Four, Three, Two, One . . . Pterosaurs Have Lift Off! http://www.newswise.com/articles/view/547850/?sc=rssn Tue, 06 Jan 2009 17:45:00 EST Pterosaurs have long suffered an identity crisis. Pop culture heedlessly -- and wrongly -- lumps these extinct flying lizards in with dinosaurs. Even paleontologists assumed that because the creatures flew, they were birdlike in many ways, such as using only two legs to take flight. Scientists Discover Dangerous New Method for Bacterial Toxin Transfer http://www.newswise.com/articles/view/547845/?sc=rssn Tue, 06 Jan 2009 17:10:00 EST Scientists have discovered a new way for bacteria to transfer toxic genes to unrelated bacterial species, a finding that raises the unsettling possibility that bacterial swapping of toxins and other disease-aiding factors may be more common than previously imagined. American Mathematical Society 2009 Prizes and Awards http://www.newswise.com/articles/view/547660/?sc=rssn Tue, 06 Jan 2009 16:30:00 EST The American Mathematical Society (AMS) is presenting several prizes at the Joint Mathematics Meetings in Washington, DC, on January 6, 2009. Star Light, Star Bright, Its Explanation is Out of Sight http://www.newswise.com/articles/view/547795/?sc=rssn Tue, 06 Jan 2009 12:20:00 EST This pair of NASA Hubble Space Telescope pictures shows the appearance of a
mysterious burst of light that was detected on February 21, 2006, brightened
over 100 days, and then faded into oblivion after another 100 days. The source
of the outburst remains unidentified. The event was detected serendipitously in
a Hubble search for supernovae in a distant cluster of galaxies. The light-signature
of this event does not match the behavior of a supernova or any previously
observed astronomical transient phenomenon in the universe. Bush's New Pacific Ocean Protected Areas - Commentary Available http://www.newswise.com/articles/view/547822/?sc=rssn Tue, 06 Jan 2009 08:55:00 EST President Bush's newly designated ocean reserves may build more momentum in creating more protected areas in the Pacific Ocean. The marine scientist who led the effort to create the world's largest marine protected area is available for comment. Team Finds Breast Cancer Gene Linked to Disease Spread http://www.newswise.com/articles/view/547819/?sc=rssn Mon, 05 Jan 2009 17:00:00 EST Scientists at two New Jersey institutions have identified a long-sought gene responsible for metastasis in 30 to 40 percent of all breast cancer patients. The research, published in the January 6 edition of Cancer Cell, also describes how this gene is resistant to traditional chemotherapy treatments. Researchers Discover "On Switch" for Cell Death Signaling Mechanism http://www.newswise.com/articles/view/547816/?sc=rssn Mon, 05 Jan 2009 17:00:00 EST Scientists at Burnham Institute for Medical Research (Burnham) have determined the structure of the interactions between proteins that form the heart of the death inducing signaling complex (DISC), which is responsible for triggering apoptosis (programmed cell death). |
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