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Instruments and Supplies RSS FeedsInsects Trained In Quest For Artificial Nose - Researchers have discovered that when training insects, the process of building associations is not a simple matter of strengthening connections through reinforcement. Understanding how associations are built between stimuli and behavior gives insight into the nature of learning and could inform the design of artificial "noses," sensor arrays that can detect chemicals in the air....Feed Source: feeds.sciencedaily.com Fat-regenerating 'Stem Cells' Found In Mice - Researchers have identified stem cells with the capacity to build fat. Although they have yet to show that the cells can renew themselves, transplants of the progenitor cells isolated from the fat tissue of normal mice can restore normal fat tissue in animals that are otherwise lacking it. The findings may yield insight into the causes of obesity, a condition characterized by an increase in both the size and number of fat cells.... Preserved By Ice: Glacial Dams Helped Prevent Erosion Of Tibetan Plateau - New research suggests that the edge of the Tibetan plateau might have been preserved for thousands of years by ice and glacial debris at the mouth of many tributaries to the Tsangpo River. Those deposits appear to have acted as dams that prevented the rapidly traveling Tsangpo from carving upstream into the plateau.... Pollution From Livestock Farming Affects Infant Health - A new study finds that pollution from livestock facilities is associated with an increase in infant mortality.... Gut Reaction To Arsenic Exposure Simulated - A simulated gastrointestinal system is helping scientists test contaminated soil for its potential to harm humans. The method is likely to save time and money for people hoping to repurpose land with an industrial past. Most testing for potential arsenic exposure is conducted in recognition of a dirty little secret of modern life: Humans unknowingly eat a little bit of soil each day. For children who might play on contaminated soil and ingest dirt, the testing is considered particularly important.... Babies And Beethoven: Infants Can Tell Happy Songs From Sad - A new study shows that 5-month-old babies can distinguish an upbeat tune, such as "Ode to Joy" from Beethoven's Ninth Symphony, from a lineup of gloomier compositions. By age 9 months, babies can do the opposite and pick out the sorrowful sound of Beethoven's Seventh Symphony from a pack of happy pieces.... Brainy Genes, Not Brawn, Key To Success On Mussel Beach - Scientists have found that mussels in their natural habitat express their genes in cyclic waves, in what appears to be a survival strategy akin to the circadian rhythms that govern sleep. In addition, two sets of genes used to cope with heat stress are identified, in the first real-time molecular sampling of two mussel communities.... Important Clue To Learning Deficit In Children With Autism - An important clue to why children with autism spectrum disorders have trouble imitating others has been discovered: they spend less time looking at the faces of people who are modeling new skills.... RNA Molecules, Delivery System Improve Vaccine Responses, Effectiveness - A novel delivery system that could lead to more efficient and more disease-specific vaccines against infectious diseases has been developed by biomedical engineers.... Tamoxifen Chemoprevention Tied To Early Detection Of Breast Cancer - The drug tamoxifen does not prevent or treat estrogen receptor negative breast cancer, but it can make the disease easier to find, researchers report in the Oct. 1 Journal of the National Cancer Institute.... Scientists Explore Putting Electric Cars On A Two-way Power Street - Think of it as the end of cars' slacker days: No more sitting idle for hours in parking lots or garages racking up payments, but instead earning their keep by providing power to the electricity grid. Scientists are exploring plug-in hybrid electric vehicles that not only use grid electricity to meet their power needs, but return it to the grid, earning money for the owner.... Does It Matter If Black Plus White Equals Black Or Multiracial? - "Is Barack Obama Black or Biracial?" a recent CNN.com headline asks. Should such racial characterizations of people like Obama -- who have one black parent and one white parent -- really matter? According to a new study, they do matter. When study participants knew of a person's black-white ancestry, in comparison to not knowing of the parentage, they quickly adhered to the simplistic characterization of biracial people as black.... How Dust Rings Point To Exo-Earths With Supercomputer's Help - Supercomputer simulations of dusty disks around sunlike stars show that planets nearly as small as Mars can create patterns that future telescopes may be able to detect. The research points to a new avenue in the search for habitable planets.... Eliminating Viral Vector In Stem Cell Reprogramming - Scientists have eliminated the need for a viral vector in the stem cell reprogramming process In a report in Science, they showed the ability to reprogram adult cells into iPS cells without viral integration into the genome which lays to rest concerns that the reprogramming event might be dependent upon viral integration into specific genomic loci that could mediate the genetic switch.... Future Risk Of Hurricanes: The Role Of Climate Change - Researchers are homing in on the hurricane-prone Gulf of Mexico and Caribbean Sea to assess the likely changes, between now and the middle of the century, in the frequency, intensity, and tracks of these powerful storms. Initial results are expected early next year.... Hodgkin Lymphoma: New Characteristics Discovered; Cytokines Help Tumor Cells Evade Immune System - Researchers are still discovering new characteristics of Hodgkin lymphoma, a common form of cancer of the lymphatic system. Researchers in Germany have now demonstrated the production of interleukin 21 in the tumor cells of Hodgkin lymphoma. IL-21 promotes the growth of cancer cells and helps them evade immune system detection.... New Tool Probes Function Of Rice Genes - Researchers have developed a new tool for investigating the rice genome. The inexpensive, publicly-available rice DNA microarray covers nearly all the 45,000 genes in the rice genome.... Religiosity Curbs Teen Marijuana Use By Half, National Study Finds - While many congregations of different faiths preach against drug abuse, it has been unclear whether a youth's religious involvement has any effect on his risk of drug abuse. Now a new national study finds that religious involvement makes teens half as likely to use marijuana.... Digital Zebrafish Embryo Provides First Complete Developmental Blueprint Of A Vertebrate - Researchers in Europe have generated a digital zebrafish embryo -- the first complete developmental blueprint of a vertebrate. With a new microscope scientists could for the first time track all cells for the first 24 hours in the life of a zebrafish. The data was reconstructed into a three-dimensional, digital representation of the embryo.... Statins May Prevent Miscarriages, Study Suggests - Hospital for Special Surgery researchers have found that statins may be able to prevent miscarriages in women who are suffering from pregnancy complications caused by antiphospholipid syndrome, according to a study in mice.... Extending The Life Of Fresh Cranberries - Cranberries are tart, tiny fruits packed with powerful antioxidants. The good news about cranberries is spreading, resulting in growing consumer demand for fresh cranberries and cranberry products. This demand has led to increased interest in finding ways to extend the shelf life of the popular fruit.... Key Proteins In Blood Stem Cell Replication Pinpointed - A discovery from Stanford researchers is the first to directly link the notorious members of the retinoblastoma family of proteins to the cellular production factories responsible for churning out all the blood and immune cells in the body.... Waterborne Disease Risk Upped In Great Lakes - An anticipated increased incidence of climate-related extreme rainfall events in the Great Lakes region may raise the public health risk for the 40 million people who depend on the lakes for their drinking water, according to a new study.... Tobacco Smuggling Is Killing More People Than Illegal Drugs, Experts Claim - Tobacco smuggling causes around 4,000 premature deaths a year -- four times the number of deaths caused by the use of all smuggled illegal drugs put together -- but the UK government is not doing enough to tackle the problem, claim experts on the British Medical Journal website.... Unlocking Stem Cell, DNA Secrets To Speed Therapies - Researchers have discovered that as embryonic stem cells turn into different cell types, there are dramatic corresponding changes to the order in which DNA is replicated and reorganized.... New Findings May Improve Treatment Of Inherited Breast Cancer - Scientists have identified some of the elusive downstream molecules that play a critical role in the development and progression of familial breast cancer. The research also identifies a compound found in grapes and red wine as an excellent candidate for treatment of some forms of breast cancer.... Understanding The Cycle Of Violence - Researchers have long known that children who grow up in an aggressive or violent household are more likely to become violent or aggressive in future relationships but the developmental link has been unclear. Researchers now say children who grow up in aggressive households may learn to process social information differently than their peers. "Children with high-conflict parents are more likely to think that aggressive responses would be good ways to handle social conflicts."... Breast Stem Cell Fate Is Regulated By 'Notch' - A normal developmental protein that sometimes goes awry has been implicated in breast cancer. This discovery indicates the mechanism by which inappropriate expression of the notch pathway may contribute to breast cancer.... Reality To Go: 3-D Virtual Reality On Mobile Devices - If mere texting, talking, e-mailing and snapping pictures on mobile devices aren't enough to satisfy your data cravings, now there's the prospect of accessing and displaying 3-D virtual reality simulations and animations on them. New information architecture from researchers in Offenburg, Germany puts 3-D visualizations in the palm of your hand to make this possible.... Can Taking Ecstasy Once Damage Your Memory? - Academics in the UK are issuing new warnings about the dangers of ecstasy and its effects on the brain.... 'Virgin Birth' By Shark Confirmed: Second Case Ever - Scientists have confirmed the second-ever case of a "virgin birth" in a shark, indicating once again that female sharks can reproduce without mating and raising the possibility that many female sharks have this incredible capacity.... Crucial Control In Long-lasting Immunity Discovered - Scientists have identified a protein that links two key types of white blood cells, T and B cells, letting them interact in a way that is crucial to establishing long-lasting immunity after an infection. Their finding may also explain why some individuals who have a genetic defect that prevents them from making this protein suffer from lethal infections with a common virus that otherwise is rarely fatal, while others have problems with B-cell lymphomas.... Phoenix Lander Digs And Analyzes Soil As Darkness Gathers - As fall approaches Mars' northern plains, NASA's Phoenix Lander is busy digging into the Red Planet's soil and scooping it into its onboard science laboratories for analysis.... Implantable Device May Help Manage Congestive Heart Failure Symptoms - A new study aims to improve the heart's pumping action and help to manage congestive heart failure symptoms. The US PARACHUTE trial tests the effectiveness of placing a small device in the left ventricle, or main pumping chamber of the heart. Physicians recently implanted the sixth person in the United States with the device.... Potential New Tool For Brain Surgeons - One of the primary ways of treating brain cancer is surgically removing the tumors. The risk of this sort of procedure is obvious -- it involves cutting away tissue from the brain, potentially severing nerve fibers and causing neurological damage.... Sixties Generation Is Heading For Conventional Old Age - Britain's post-war baby boomers, associated throughout their lives with social change, are failing to break new ground in their approach to growing old.... Astronomers Get Best View Yet Of Infant Stars At Feeding Time - Astronomers have used ESO's Very Large Telescope Interferometer to conduct the first high resolution survey that combines spectroscopy and interferometry on intermediate-mass infant stars. They obtained a very precise view of the processes acting in the discs that feed stars as they form. These mechanisms include material infalling onto the star as well as gas being ejected, probably as a wind from the disc.... Rapid Improvement In Overactive Bladder Symptoms, International Drug Study Shows - Patients with overactive bladders who took part in a multi-centre study to measure the effectiveness of solifenacin noticed improvements in as little as three days, according to new research.... Mimicking Gecko Feet: Dry Adhesive Based On Carbon Nanotubes Gets Stronger - The race for the best "gecko foot" dry adhesive just got a new competitor this week with a stronger and more practical material reported by US researchers.... Early Breast Cancer: LHRH Agonists Show Considerable Promise - Women who have had early stage breast cancer surgically removed, and whose tumor cells are stimulated by the hormone estrogen, can benefit from taking luteinizing hormone releasing hormone antagonists, a Cochrane systematic review has concluded. This medication may be taken alone or alongside the use of tamoxifen.... Biological Alternatives To Chemical Pesticides - With increasing consumer pressure on both farmers and supermarkets to minimize the use of chemical pesticides in fruit and vegetables, a new study looks at why there is currently little use of biological alternatives in the UK.... Scientists Adapt Economics Theory To Trace Brain's Information Flow - Scientists have used a technique originally developed for economic study to become the first to overcome a significant challenge in brain research: determining the flow of information from one part of the brain to another.... Can Genetic Information Be Controlled By Light? - Can genetic information be controlled by light? Researchers report sequence-dependent effects of light on DNA. DNA, the molecule that acts as the carrier of genetic information in all forms of life, is highly resistant against alteration by ultraviolet light, but understanding the mechanism for its photostability presents some puzzling problems.... Genetic Finding Implicates Innate Immune System In Major Cause Of Blindness - Scientists have identified one of the genes implicated in age-related macular degeneration, the most common cause of blindness in developed countries.... Daily Dose Of Ginkgo May Prevent Brain Cell Damage After Stroke, Mouse Studies Suggest - Working with genetically engineered mice, researchers at Johns Hopkins have shown that daily doses of a standardized extract from the leaves of the ginkgo tree can prevent or reduce brain damage after an induced stroke.... One Dose Of Hormone May Halt Cell Suicide Following A Heart Attack, Study Suggests - Two things happen following a heart attack--necrosis (normal cell death) and apoptosis (programmed cell death) -- and both are bad. Now researchers in Japan have found that a single intravenous dose of the hormone erythropoietin immediately after myocardial infarction (heart attack) can drastically reduce or eliminate apoptosis and thereby limit the amount of damage to the heart, according to an article in the Journal of Nuclear Medicine.... Scientists Engineer Superconducting Thin Films - Scientists have successfully produced two-layer thin films where neither layer is superconducting on its own, but which exhibit a nanometer-thick region of superconductivity at their interface. The work is one step on the path toward making useful superconducting devices.... Flawed Corporate Watchdog Methods Helped Fuel Economic Crisis, Expert Says - Archaic corporate governing systems that failed to ferret out risky business deals helped stoke the nation's deepest financial meltdown since the Great Depression, a University of Illinois business law expert says.... Copyright © 2008, Chicago Best Price. All Rights Reserved. |