New Article Alert
Fuel Cells To Power Unmanned Aerial VehicleGeorgia Institute of Technology scientists have conducted successful test flights of a hydrogen-powered unmanned aircraft thought to bethe largest to fly on a proton exchange membrane (PEM) fuel cell using compressed hydrogen.
The fuel-cell system that powers the 22-foot wingspan aircraft generates only 500 watts. "That raises a lot of eyebrows," said Adam Broughton, a research engineer who is working on the project in Georgia Tech's........Go to the New-technology-blog (Added on 8/29/2006 4:44:21 AM)
Teen career plans out of sync with realitySo your high school senior says she wants to be a doctor. Great news, right? It is if she's got the talent and the grades to back up her ambition.
Unfortunately, the goals of too a number of teens now outpace what they are likely to achieve, a problem that can lead to wasted time and resources, not to mention anxiety and distress, as per a new Florida State University study.
Sociology Professor John Reynolds tracked changes in high school........Go to the Media-blog (Added on 8/28/2006 9:11:36 PM)
Why You Go Hairless?Scientists looking at mice may have discovered why certain people are hairier than others in what could provide clues as to the reason some men go bald prematurely.
The University of Manchester team has laid bare the molecular processes that determine which embryonic skin cells will form into hair follicles and determine the body's hair pattern.
The findings will be of interest to scientists looking at male-pattern baldness but have more........Go to the Media-blog (Added on 8/28/2006 9:04:10 PM)
Low Altitude Flying With Coarse MapsWhat exactly determines the time of the SMART-1 impact? What causes the uncertainty in the impact time?
The SMART-1 spacecraft is currently expected to impact the Moon's surface on 3 September 2006, at 07:41 CEST (05:41 UT). However, it is also possible that the small satellite hits the Moon on the previous orbit at 02:37 CEST (00:37 UT). Why?
The time of impact has been determined by orbit predictions following the major thruster........Go to the Astronomy-blog (Added on 8/27/2006 9:18:23 PM)
Forecast Accuracy Gets BoostAn advanced forecasting model that predicts several types of extreme weather with substantially improved accuracy has been adopted for day-to-day operational use by civilian and military weather forecasters. The new computer model was created through a partnership that includes the National Oceanic and Atmospheric Administration (NOAA), the National Center for Atmospheric Research (NCAR), and more than 150 other organizations and universities........Go to the Media-blog (Added on 8/27/2006 8:50:25 PM)
Gut Tissue A Major Reservoir For HIVFINDINGS: UCLA researchers have found the human gut to be a major reservoir harboring the HIV virus -- holding almost twice as much as a person's blood. In addition, the virus stored in the gut does not decay or reduce over time, as is also the case with blood-related reservoirs. It is well-known that peripheral blood mononuclear cells (PBMCs) and lymph nodes are principal reservoirs harboring the human immunodeficiency virus (HIV). The........Go to the Media-blog (Added on 8/27/2006 7:51:34 PM)
Making An Alcoholic Sleep BetterAlcoholics generally don't sleep well. Nor does abstinence improve the situation much. In fact, sleep difficulties during alcohol abstinence may be responsible for a relapse to alcoholism as individuals attempt to self medicate their sleeping problems. New findings show that an alcoholism-treatment drug called acamprosate, widely used in Europe, can alleviate post-withdrawal sleep disturbances by influencing glutamatergic transmission.
........Go to the Media-blog (Added on 8/27/2006 7:21:06 PM)
Business Card Menger SpongeMenger's Sponge - named for its inventor Karl Menger and sometimes wrongly called Sierpinski's Sponge - was the first three dimensional fractal that mathematicians became aware of. In 1995 Dr Jeannine Mosely, a software engineer, set out to build a level 3 Menger Sponge from business cards. After 9 years of effort, involving hundreds of folders all over America, the Business Card Menger Sponge was completed. The resulting object is comprised of........Go to the Media-blog (Added on 8/27/2006 8:24:42 AM)
Armor Of God PJsWhat are the Armor Of God PJ's? The Armor Of God PJ's were inspired by a mother reading Ephesians 6:10-18 every night to her daughter to give her a safe and secure feeling in the dark. As they read the scriptures, they put on each spiritual and powerful piece of the Armor of God to keep them safe and peaceful while they slept. At that moment,.
God gave me the idea how wonderful it would be if all children could have the opportunity to put........Go to the Media-blog (Added on 8/27/2006 8:02:00 AM)
Insect Predation Sheds Light On Food Web RecoveryThe recovery of biodiversity after the end-Cretaceous mass extinction was much more chaotic than previously thought, according to paleontologists. New fossil evidence shows that at certain times and places, plant and insect diversity were severely out of balance, not linked as they are today. The extinction took place 65.5 million years ago. Labeled the K-T extinction, it marks the beginning of the Cenozoic Era and the Paleocene Epoch.
"The........Go to the Media-blog (Added on 8/25/2006 5:05:46 AM)
Psychology Of Aggressive StudentsAs the disturbing trend of school violence continues to plague our education system, it is important for caregivers, educators, and doctors to join forces to be proactive in its prevention. A study in the recent issue of The Journal of Pediatrics shows that students displaying violent behaviors often have untreated learning disorders and psychiatric illnesses.
Dr. Nancy Rappaport, a child psychiatrist at Cambridge Health Alliance, and........Go to the Media-blog (Added on 8/24/2006 10:17:50 PM)
Toxic Molecule And Muscular DystrophyDoctors at the University of Virginia Health System have shown for the first time that getting rid of poisonous RNA (ribonucleic acid) in muscle cells can reverse myotonic dystrophy, the most common type of muscular dystrophy in adults.
About 40,000 people in the United States have myotonic muscular dystrophy (MMD). The disease can cause a slow, progressive wasting of the muscles, irregular heartbeat, cataracts and insulin resistance. Many........Go to the Media-blog (Added on 8/24/2006 10:06:58 PM)
Save Money While Treating Drug AbuseThe National Institute on Drug Abuse (NIDA), a division of the National Institutes of Health (NIH) recently released a landmark report containing 13 specific principles and recommendations to rehabilitate drug offenders and ultimately provide substantial financial savings to communities. The publication, Principles of Drug Abuse Treatment for Criminal Justice Populations, is based in part on the work of University of Kentucky Researchers........Go to the Media-blog (Added on 8/24/2006 9:41:13 PM)
Avian Flu Detection InformationResearchers are now using the newly developed database and Web application called HEDDS (HPAI Early Detection Data System) to share information on sample collection sites, bird species sampled, and test results.
The database is available to agencies, organizations, and policymakers involved in avian influenza monitoring and response. Researchers will use the data to assess risk and refine monitoring strategies should HPAI be detected in the........Go to the Media-blog (Added on 8/24/2006 9:33:02 PM)
Fake AdsInteresting collection of fake ads.
Hmmm.........Go to the Media-blog (Added on 8/24/2006 7:32:54 PM)
Know Your Body Mass IndexBMI (Body Mass Index) is a good tool used for evaluation of overweight and obesity. This index is also a good tool for estimating changes in the body weight over some period of time. The idea of body mass index came from the weight-for-height tables, which was in use for several years. Just like the weight-for-height tables, body mass index has its limitations since it does not estimate body fat content or muscle mass by direct measurement. BMI........Go to the Media-blog (Added on 8/24/2006 6:52:13 PM)
Manatee TravelerA West Indian manatee has been sighted in various waters of the northeastern United States in the last 5-6 weeks. It took in the sights along the Hudson River traveling up into Harlem, visited Cape Cod, Mass., and was most recently sighted in Warwick, Rhode Island, in Greenwich Bay.
The question everyone is asking is: Is it Chessie on summer vacation? U.S. Geological Survey manatee researchers have today been able to rule out Chessie as the........Go to the Media-blog (Added on 8/24/2006 4:51:06 AM)
Wild-type mouse embryo 9.5 days post coitumWild-type mouse embryo 9.5 days post coitum. To assess the effect of targeted cubilin knockdown on blood vessel formation, embryos were immunolabeled with anti-PECAM-1, an endothelial cell marker.
Cubilin-deficient embryos display developmental retardation and do not advance morphologically beyond the appearance of WT 8-8.5 dpc embryos.........Go to the Media-blog (Added on 8/23/2006 8:34:59 PM)
Persicaria AmplexicaulisThe epithet amplexicaulis means "stem-clasping", describing (in this case) the attachment of the leaves to the stem. You can see what is meant by amplexicaulis via the secondary photograph in the Kemper Center link below or via this image of Asclepias amplexicaulis.
'Firetail' red bistort or mountain fleece is an RHS Award of Garden Merit plant. For gardening info about this plant, visit the MBG's Kemper Center for Home Gardening.
Botany........Go to the Media-blog (Added on 8/23/2006 7:28:56 PM)
Genome Set To Transform The CowThe ability of scientists to improve health and disease management of cattle and enhance the nutritional value of beef and dairy products has received a major boost with the release this week of the most complete sequence of the cow genome ever assembled.
Developed by an international consortium of research organisations, including CSIRO and AgResearch New Zealand, the new bovine sequence contains 2.9 billion DNA base pairs and incorporates........Go to the Media-blog (Added on 8/23/2006 7:07:51 PM)
A switch between life and deathCells in an embryo divide at an amazing rate to build a whole body, but this growth needs to be controlled. Otherwise the result may be defects in embryonic development or cancer in adults. Controlling growth requires that some cells divide while others die; their fates are determined by signals that are passed from molecule to molecule within the cell. Researchers at the European Molecular Biology Laboratory [EMBL] in Heidelberg have now........Go to the Media-blog (Added on 8/28/2006 10:03:09 PM)
Serious Mental Illness In Katrina SurvivorsAccording to the most comprehensive survey yet completed of mental health among Hurricane Katrina survivors from Alabama, Louisiana, and Mississippi, the proportion of people with a serious mental illness doubled in the months after the hurricane compared to a survey carried out several years before the hurricane. The study also found that thoughts of suicide did not increase despite the dramatic increase in mental illness. The authors suggest........Go to the Media-blog (Added on 8/28/2006 9:42:52 PM)
Nanocantilevers Yield SurprisesScientists at Purdue University have made a discovery about the behavior of tiny structures called nanocantilevers that could be crucial in designing a new class of ultra-small sensors for detecting viruses, bacteria and other pathogens.
The nanocantilevers, which resemble tiny diving boards made of silicon, could be used in future detectors because they vibrate at different frequencies when contaminants stick to them, revealing the presence........Go to the New-technology-blog (Added on 8/28/2006 9:08:39 PM)
Turning Fuel Ethanol Into Beverage AlcoholFuel ethanol could be cheaply and quickly converted into the purer, cleaner alcohol that goes into alcoholic drinks, cough medicines, mouth washes and other products requiring food-grade alcohol, say Iowa State University researchers.
But there's still a lot of purifying and studying to be done before fuel made from corn is turned into your next vodka or mixed into your morning mouth wash.
Jacek Koziel, an Iowa State assistant professor........Go to the New-technology-blog (Added on 8/27/2006 9:01:01 PM)
Remote Island Provides Clues On Population GrowthHalfway between South America and New Zealand, in the remote South Pacific, is Rapa. This horseshoe-shaped, 13.5 square-mile island of volcanic origin, located essentially in the middle of nowhere, is "a microcosm of the world's situation," says a University of Oregon archaeologist.
Until only recently, little was known about the French Polynesian Island, where the current population is less than 500. Archaeological, linguistic and genetic........Go to the Media-blog (Added on 8/27/2006 8:03:49 PM)
Gene nfluence for alcoholism
Not only do both genes and environment have an impact on the development of alcohol-use disorders, but now scientists have observed that certain genes may influence scientists' ability to interpret other genes' effects. One variant of the alcohol dehydrogenase (ADH) gene the ADH1B genotype appears to be able to influence level of response (LR) to alcohol among non-Asians.
Results are reported in the recent issue of Alcoholism: Clinical........Go to the Media-blog (Added on 8/27/2006 7:48:15 PM)
Freenigma Adds Privacy To Mailfreenigma adds privacy technology (with strong e-mail encryption) to your favourite webmail service.
Today, all your e-mails are stored and sent around the planet in plain text. And today you have no control over what happens to your private or business e-mail conversations and you can't prevent others from reading them. Get your privacy back! Encrypt your private and business e-mails to protect your freedom, privacy and your business........Go to the Media-blog (Added on 8/27/2006 9:18:05 AM)
Giant praying mantisA giant praying mantis invaded Old Town Square in Prague today at 8:15 pm to the delight of hundreds of human onlookers, and a few horses too. The humanoid invaders, on extended springy legs, drove their giant insect through the Old Town amid fireballs and deep heavy funk grooves.
The police stood by, trying to direct the bug to more peaceful environs, as a number of of the grumpier tourists nearby were rather put off their expensive goulash........Go to the Media-blog (Added on 8/27/2006 8:57:20 AM)
The Most Incredible KnifeThe Most Incredible Knife.
Make sure you have a big pocket.
1. 2.5" 60% Serrated locking blade.
2. Nail file, nail cleaner.
4. Adjustable pliers with wire crimper and cutter.
5. Removable screwdriver bit adapter.........Go to the Media-blog (Added on 8/27/2006 8:14:27 AM)
Why Earth's Aurorae ShineESA's Cluster mission has established that high-speed flows of electrified gas, known as bursty bulk flows, in the Earth's magnetic field are the carriers of decisive amounts of mass, energy and magnetic perturbation towards the Earth during magnetic substorms. When substorms occur, energetic particles strike our atmosphere, causing aurorae to shine.
Such colourful aurorae regularly light the higher latitudes in the northern and southern........Go to the Astronomy-blog (Added on 8/25/2006 4:44:40 AM)
Waterborne infectious diseases could soon be historyWaterborne infectious diseases, which bring death and illness to millions of people around the world, could largely be consigned to history by 2015 if global health partnerships integrate their programmes, as per Alan Fenwick writing in today's Science.
Professor Fenwick, from Imperial College London, argues that up to seven neglected tropical diseases including river blindness could be brought under control, with infection by some........Go to the Media-blog (Added on 8/24/2006 10:30:22 PM)
Microscopic passengers to hitch rideWhen space shuttle Atlantis rockets into space later this week, it will take along three kinds of microbes so researchers can study how their genetic responses and their ability to cause disease change.
The 'Microbe' experiment, part of the STS-115 space shuttle mission scheduled for launch Aug. 27, will study three common microorganisms -- Salmonella typhimurium, Pseudomonas aeruginosa and Candida albicans -- that have been identified as........Go to the Astronomy-blog (Added on 8/24/2006 9:49:12 PM)
Some Faithful Less Likely To Pass The PlateReligious shepherds need to keep better watch over their flocks and add activities to keep from fattening them up, says a Purdue University researcher who has observed that some religious activities may promote obesity.
"America is becoming known as a nation of gluttony and obesity, and churches are a feeding ground for this problem," says Ken Ferraro, a professor of sociology who has studied religion and body weight since the early part of........Go to the Media-blog (Added on 8/24/2006 9:45:01 PM)
Pluto is not a planetThe "United Nations" of astronomers has announced a new definition of what a planet is, slightly revising the description preferred by an international panel including an MIT professor that was tasked with the challenge.
Members of the International Astronomical Union (IAU) voted on August 24 to define a planet as an object that is in orbit around the sun, is large enough for its own gravity to pull it into a nearly spherical shape, and has........Go to the Astronomy-blog (Added on 8/24/2006 9:11:03 PM)
See cats in actionSee cats in action.
Hmmmm..............Go to the Media-blog (Added on 8/24/2006 7:54:39 PM)
Eating Habits Of Rain Forest InsectsA study initiated by University of Minnesota plant biologist George Weiblen has confirmed what biologists since Darwin have suspected - that the vast number of tree species in rain forests accounts for the equally vast number of plant-eating species of insects.
"This is a big step forward in the quest to understand why there is so much biodiversity in the tropics," said Weiblen, principal investigator and senior author for the National........Go to the Media-blog (Added on 8/24/2006 5:05:37 AM)
New Water Filtration TechniqueA water filtration technique that normally cleans up agricultural chemicals is also effective at removing a toxin secreted by algae found in lakes and rivers, an Ohio State University study has observed.
Engineers here determined that the technique greatly outperformed other methods by removing at least 95 percent of a toxin secreted by Microcystis, a blue-green algae.
Some water filtration plants around the country already use the........Go to the New-technology-blog (Added on 8/23/2006 9:39:19 PM)
Supercomputers To Study Atoms Linked To Black HolesSuper-hot atoms in space hold the key to an astronomical mystery, and an Ohio State University astronomer is leading an effort to study those atoms here on Earth.
Anil Pradhan, professor of astronomy, and his team have used supercomputers to perform the most precise energy calculations ever made for these atoms and their properties. As a result, astronomers -- in particular, those hunting black holes -- will have a better idea of what they........Go to the Astronomy-blog (Added on 8/23/2006 9:17:34 PM)
Brave new world in life sciencesThe biosciences are converging with information technology, nanotechnology, and materials science in unforeseen ways, yielding remarkable advances that have the potential to cure--or kill. To reduce the likelihood that these discoveries will be exploited for destructive ends, the authors of the 2006 report, "Globalization, Biosecurity, and the Future of Life Sciences," propose a "web of protection" that bolsters the development of robust........Go to the Media-blog (Added on 8/23/2006 8:24:57 PM)
Virus Threat To Red SquirrelsNew research has revealed for the first time the catastrophic effect of a deadly virus on Britain's native red squirrels.
The research shows that squirrel poxvirus is threatening to wipe out red squirrels in some of the areas in which they remain in northern England within 10 years. In areas where the virus has been detected, the rate of decline in reds is 17-25 times higher than in places where there has been no outbreak.
Until now the........Go to the Media-blog (Added on 8/23/2006 6:53:16 PM)