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Instruments and Supplies RSS FeedsDarwin Was Right About How Evolution Can Affect Whole Group - Worker ants of the world, unite! You have nothing to lose but your fertility. The highly specialized worker castes in ants represent the pinnacle of social organization in the insect world. As in any society, however, ant colonies are filled with internal strife and conflict. So what binds them together? More than 150 years ago, Charles Darwin had an idea and now he's been proven right....Feed Source: feeds.sciencedaily.com Biomarkers Used To Predict Chronological And Physiological Age - How old are you really? Chronological age is easy -- count forward from birth. But establishing physiological age is purely subjective, based on how someone looks, feels and functions. Research in nematode worms is providing a crucial first step toward the development of biomarkers to predict chronological and physiological age in humans. This technology could facilitate testing of anti-aging therapies as well as give physicians a means of tracking how individuals "withstand the tests of time."... Works Of Art Shed New Light On Climate Change - Paintings, watercolors and prints can be used by those who manage Britain's coastlines to look back in time and better understand the threat of rising sea levels and climate change.... What Controls Critical 'Go-to' Enzyme: Findings May Hold Key To Better Treatments For Many Disorders - Scientists have gained new insights into regulation of one of the body's enzyme workhorses called calpains. As the cell's molecular overachievers, calpains function in many cellular processes, including the movement of cells in tissues, the death of damaged cells, insulin secretion, and brain cell and muscle function. The downside of this broad set of responsibilities is that defective or overactive calpains have been linked to an array of disorders, including a form of muscular dystrophy, Type 2 diabetes, gastric cancers, Alzheimer's and Parkinson's diseases, cataracts, and the death of both heart muscle in heart attacks and of brain tissue in stroke and traumatic brain injury.... 'Enlightened' Atoms Stage Nano-riot Against Uniformity - Theorists say atoms in a crystal can be made to behave in an unexpected way, a way that can be exploited to create tiny computer components that emit less heat and new sensors to detect bio-hazards and medical conditions.... Crisis Of Illicit Alcohol In Central And Eastern Europe, Report Finds - The consumption of illicit or noncommercial alcohol is widespread in central and eastern Europe and contributes significantly to the region?s high levels of alcohol-related problems, according to a new report. While illegal alcohol consumption in western Europe is relatively low, the report finds the level of noncommercial alcohol in central and eastern Europe is so high that it renders statistics on official alcohol sales nearly useless.... Potential Sources Of 'Rain-Making' Bacteria In The Atmosphere Identified - Scientists recently found evidence that bacteria and biological cells are the most efficient ice-forming catalysts in precipitation from locations around the globe. The formation of ice in clouds is important in the processes that lead to snow and rain. Ice-nucleating bacteria -- which have been referred to as "rain-making bacteria" -- may be significant triggers of freezing in clouds and influence the water cycle.... Neurons Derived From Embryonic Stem Cells Restore Muscle Function After Injury - Researchers have discovered that embryonic stem cells may play a critical role in helping people with nerve damage and motor neuron diseases, such as amyotrophic lateral sclerosis (ALS), regain muscular strength.... The Tooth Whisperers - The phrase, "the eyes are the windows to the soul," is attributed to several authors and philosophers. But the phrase, "your teeth are the windows to your health," can be attributed to Mohamed Bassiouny, DMD, MSc, PhD, who has been studying how teeth provide important clues to his patients' overall health for more than 30 years.... Deep Brain Mapping To Isolate Evidence Of Gulf War Syndrome - As a congressionally mandated report reveals one of every four veterans of the 1991 Persian Gulf conflict suffers from Gulf War syndrome, statistical scientists are analyzing brain scan images from a nationwide sample of veterans displaying symptoms.... Scientists Reshape Future Of Drug Discovery With Next Generation Man-Made Molecules - Scientists have devised a new way to create the next generation of man-made molecules in a breakthrough that could revolutionize drug development.... Attending Religious Services Sharply Cuts Risk Of Death, Study Suggests - A new study strongly suggests that regular attendance at religious services reduces the risk of death by approximately 20 percent.... Removing Part Of Brain Controls Girl's Epilepsy - Surgeons told Jessica Nelson one of the scariest things she will ever hear as a parent: they wanted to treat her daughter's epilepsy by cutting out or disconnecting half of her brain. Then something extraordinary happened: it worked.... Two New Compounds Show Promise For Eliminating Breast Cancer Tumors - Two new compounds show early promise for destroying breast cancer tumors. Researchers have observed no negative side effects so far. The compounds disrupt bonding of a cancer-related protein.... Site List Narrows For NASA's Next Mars Landing - Four intriguing places on Mars have risen to the final round as NASA selects a landing site for its next Mars mission, the Mars Science Laboratory. The agency had a wider range of possible landing sites to choose from than for any previous mission, thanks to the Mars Science Laboratory's advanced technologies, and the highly capable orbiters helping this mission identify scientifically compelling places to explore.... Gene Silencing May Improve Success Of Islet Cell Transplants For Diabetes - Scientists in Tennessee are reporting that a gene therapy technique called gene silencing shows promise for improving the effectiveness and expanded use of transplants of insulin-producing cells to treat diabetes.... Toward A New Generation Of Paper-thin Loudspeakers - In research that may redefine ear buds, earphones, stereo loudspeakers, and other devices for producing sound, researchers in China are reporting development of flexible loudspeakers thinner than paper that might be inserted into the ears with an index finger or attached to clothing, walls, or windows. Their report on what may be the world's thinnest loudspeakers, made from transparent carbon nanotube films, is scheduled for the December 10 issue of Nano Letters.... Rational Or Random? Professor Models How People Send E-mails - How do people respond to e-mails? Rationally, responding to the most important first, making sure the process is efficient? Or randomly, when they are at their computers or when they have time, without any regard to efficiency? After studying e-mails sent and received from more than 3,000 e-mail accounts at a European university over a three-month period,scientists created a mathematical model that shows people send e-mail randomly, but in cycles.... Mysterious Source Of High-Energy Cosmic Radiation Discovered: Nearby Exotic Object? - Scientists have discovered a previously unidentified nearby source of high-energy cosmic rays. The finding was made with a NASA-funded balloon-borne instrument high over Antarctica.... New Platinum-phosphate Compounds Kill Ovarian Cancer Cells, Other Cancer Cells - A new class of compounds called phosphaplatins can effectively kill ovarian, testicular, head and neck cancer cells with potentially less toxicity than conventional drugs, according to a new study in the journal Proceedings of the National Academy of Sciences.... Physicist Make Droplets Dance Above A Surface - Physicists can now make droplets dance, float and bounce above a surface, keeping small amounts of fluid free of contamination and ripe for testing.... Genome-wide Association Scan For Genetic Determinants Of Warfarin Dose - A growing number of geneticists are using genome-wide association studies (GWAS) to systematically search for and identify single nucleotide polymorphisms (SNPs), which are single base changes in the human DNA sequence that can cause differences in genetic characteristics. GWAS may also detect genes that are associated with a particular health condition, or with variation in patient response to prescribed drugs.... New Gene-silencing Pathway Found In Plants - Biologists have made major headway in explaining a mechanism by which plant cells silence potentially harmful genes. New research in Cell explains how RNA polymerases work together to use the non-coding region of DNA to prevent destructive, virus-derived genes from being activated. This research adds to a growing body of evidence suggesting that "junk DNA" is in fact a functional part of the genome, since transcription of the intergenic regions is necessary to keep potentially harmful genes turned off.... Drug-related Preference In Cocaine Addiction Extends To Images - When given a choice between viewing pictures of cocaine and a variety of other images, cocaine addicted individuals, as compared to healthy, non-addicted research subjects, show a clear preference for the drug-related images.... Woolly-mammoth Genome Sequenced - Scientists have completed the genome-wide sequence of an extinct animal. The scientists sequenced the genome of the woolly mammoth, an extinct species of elephant that was adapted to living in the cold environment of the northern hemisphere. They sequenced four billion DNA bases using next-generation DNA-sequencing instruments and a novel approach that reads ancient DNA highly efficiently.... Enzyme Discovery May Lead To Better Heart And Stroke Treatments - A new study sheds new light on the way one of our cell enzymes, implicated in causing tissue damage after heart attacks and strokes, is normally kept under control.... Turtles Alter Nesting Dates Due To Temperature Change - Researchers say turtles nesting along the Mississippi River and other areas are altering their nesting dates in response to rising temperatures.... Exercise Is Safe, Improves Outcomes For Patients With Heart Failure, Study Suggests - Working out on a stationary bicycle or walking on a treadmill just 25 to 30 minutes most days of the week is enough to modestly lower risk of hospitalization or death for patients with heart failure, say researchers.... Most Efficient Silicon-based OLED Microdisplay In The World - Offering better comfort to users of point-and-shoot digital cameras, and new designs for video glasses with the highest resolution ever, Microoled and the CEA-Leti have targeted these and many other potential applications with the announcement of the most efficient silicon-based OLED microdisplay in the world.... Psychological Interventions Associated With Breast Cancer Survival - A new study finds that breast cancer patients who participate in intervention sessions focusing on improving mood, coping effectively and altering health behaviors live longer than patients who do not receive such psychological support.... Plastic Additives Leach Into Medical Experiments, Research Shows - Using plastic lab equipment can skew or ruin the results of medical experiments, a new study finds. Researchers identified two classes of chemical compounds in commonly-used plastic lab ware that could leach into solutions. They further demonstrated that the compounds interacted biologically with, and changed the behavior of, human enzymes and brain receptors in different experiments.... New Theory Of Visual Computation Reveals How Brain Makes Sense Of Natural Scenes - Computational neuroscientists have developed a computational model that provides insight into the function of the brain's visual cortex and the information processing that enables people to perceive contours and surfaces, and understand what they see in the world around them.... Trouble In The Pipeline For Grey Whales - The fate of the world's few remaining western grey whales now rests on the outcome of appeals to Russian authorities and courts following the refusal of an oil consortium to consider alternatives to a proposal to lay an oil pipeline through a shallow lagoon crucial to the whales' food supplies.... Rural Women Are At Higher Risk Of Blood Pressure Disorders During Pregnancy - Several factors, such as older age and high weight gain, are known risk factors for pre-eclampsia and other pregnancy-related blood pressure disorders. Now a new report suggests that social factors -- including living in a rural county -- may also increase the risk of pre-eclampsia and pregnancy-induced hypertension, according to new research.... Sonography In Space - Astronauts on extended space missions can get injured or develop diseases, necessitating immediate diagnosis and treatment. Research conducted on the International Space Station ensuring that astronauts could accurately perform remotely-guided sonograms was published in the Journal of Diagnostic Medical Sonography.... Media Violence Cited As 'Critical Risk Factor' For Aggression - You are what you watch, when it comes to violence in the media and its influence on violent behavior in young people, and an article provides new evidence that violent media does indeed impact adolescent behavior.... How Do Bacteria Swim? Physicists Explain - Physicists have completed the most detailed study of the swimming patterns of a microbe, showing for the first time how its movement is affected by drag and a phenomenon called Brownian motion.... ADHD Medications Do Not Cause Genetic Damage In Children, Study Shows - In contrast to recent findings, two of the most common medications used to treat attention deficit hyperactivity disorder do not appear to cause genetic damage in children who take them as prescribed, according to a new study by researchers at the National Institutes of Health and Duke University Medical Center.... Gene That Regulates Mold's Resistance To Drugs Identified - Researchers have found a gene that regulates mold's resistance to anti-mold drugs.... General Anesthesia For Hernia Surgery In Children And Risk Of Later Developmental Problems - Children under the age of three who had hernia surgery showed almost twice the risk of behavioral or developmental problems later compared to children who had not undergone the surgery.... Second Life: 'Second China' Offers Foreign Service Workers First Impression - Diplomats or military envoys making their first trip to China may soon have a chance to visit a Chinese office building, stop in at a traditional teahouse or hop a cab -- all before they board a plane.... Extensive Use Of Illicit Alcohol Found - The consumption of illicit or noncommercial alcohol is widespread in many countries worldwide and contributes significantly to the global burden of disease, according to a new report.... New Bacteria Discovered In Raw Milk - Raw milk is illegal in many countries as it can be contaminated with potentially harmful microbes. Contamination can also spoil the milk, making it taste bitter and turn thick and sticky. Now scientists have discovered new species of bacteria that can grow at low temperatures, spoiling raw milk even when it is refrigerated. It seems the microbial population of raw milk is much more complex than previously thought.... Rhesus Factor Controls Renal Function And Male Fertility - The "Rhesus" blood group is well-known from the public for its importance in the field of transfusion medicine. New observations have implications in human medicine. They suggest that in man, mutations affecting the RHCG gene could cause some forms of renal pathologies and/or a loss of male fertility.... Consumers Influence Christmas Tree Styles - The Fraser fir is gaining popularity among American consumers looking for beautiful, long-lasting Christmas trees. Consumers favor Fraser fir for its conical shape, dark green foliage, pleasant aroma and excellent needle retention.... Jumonjd3: A Key For Unlocking Neuronal Stem Cell Fate - A novel role for the protein, Jumonjd3, as an epigenetic modulator in the neuronal differentiation of embryonic stem cells, has recently been uncovered -- a step forward in the understanding of cellular reprogramming and in the development of innovative cancer therapies.... Hops Extract May Reduce Clostridium In Chickens - Hops contain substances that control pathogenic bacteria in the intestines of chickens, Agricultural Research Service (ARS) scientists and cooperators have reported.... African-Americans With Depression And Heart Attack Have Greater Risk Of Death - African-American patients with acute myocardial infarction and previously treated depression that persists at their MI hospitalization have an increased risk of post-MI death, according to new research.... Copyright © 2008, SandyHay.com. 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