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Instruments and Supplies RSS Feeds'Mitochondrial Eve' Research: Humanity Was Genetically Divided For 100,000 Years - Humanity was genetically divided for as much as 100,000 years, according to new findings. Climate change, reduction in populations and harsh conditions may have caused and maintained the separation....Feed Source: feeds.sciencedaily.com Molecular 'Clock' Could Predict Risk For Developing Breast Cancer - A chemical reaction in genes that control breast cancer provides a molecular clock that could one day help researchers more accurately determine a woman's risk for developing breast cancer and provide a new approach for treatment.... El Niņo May Have Been Factor In Magellan's Pacific Voyage - Archaeologists show that Ferdinand Magellan's historic circumnavigation of the globe was likely influenced in large part by unusual weather conditions -- including what we now know as El Niņo -- which eased his passage across the Pacific Ocean, but ultimately led him over a thousand miles from his intended destination.... Risk Of Death Persists In Heart Patients With Acute Kidney Injury, Study Shows - Acute kidney injury, a common complication of cardiac surgery during hospitalization, is linked to increased and prolonged risk of death in heart attack patients who have been discharged from the hospital, according to a study published in Archives of Internal Medicine.... Nanotechnology In Reverse Uses Red Blood Cell To Calibrate Atomic Force Microscope - Nanotechnology researchers have shown that they can use a red blood cell to calibrate a sensitive instrument, an atomic force microscope. An atomic force microscope uses a tiny lever that runs over the surface of an object. Small deflections of the tip are read and translated to produce an image of the object's surface. However, accurate calibration of the springiness of the tip is difficult.... Having Less Power Impairs The Mind And Ability To Get Ahead, Study Shows - New research appearing in Psychological Science suggests that being put in a low-power role may impair a person's basic cognitive functioning and thus, their ability to get ahead.... Crystal (Eye) Ball: Visual System Equipped With 'Future Seeing Powers' - Catching a football. Maneuvering through a room full of people. Jumping out of the way when a golfer yells "fore." Most would agree these seemingly simple actions require us to perceive and quickly respond to a situation. An assistant professor of cognitive science argues they require something more -- our ability to foresee the future.... Most Effective Initial Therapy For HIV-1 Infection Identified - In the largest study of its kind to evaluate commonly used HIV drugs, researchers confirmed that one of the most frequently prescribed triple drug combinations for initial HIV infection is indeed the most effective at suppressing HIV. The study also found that a two-drug regimen performed comparably to the triple-drug regimens.... Deep Sea Methane Scavengers Captured - Scientists succeeded in capturing syntrophic (means "feeding together") microorganisms that are known to dramatically reduce the oceanic emission of methane into the atmosphere. These microorganisms that oxidize methane anaerobically are an important component of the global carbon cycle and a major sink for methane on Earth. Methane - a more than 20 times stronger greenhouse gas than carbon dioxide - constantly seeps out large methane hydrate reservoirs in the ocean floors, but 80 percent of it are immediately consumed by these microorganisms.... Prostate Cancer Increases The Risk Of Bone Fracture, Study Shows - As unlikely as it sounds, scientists have shown that there is a link between prostate cancer and a higher risk of bone fracture. Men with prostate cancer face a 50% higher risk of fracture, which increases to nearly doubled risk if they are receiving treatment.... Firearms Microstamping Feasible But Variable, Study Finds - New technology to link cartridge cases to guns by engraving microscopic codes on the firing pin is feasible, but did not work equally well for all guns and ammunition tested in a pilot study by researchers from the forensic science program at UC Davis. Microstamping technology uses a laser to cut a pattern or code into the head of a firing pin or another internal surface.... Mixed Results For Late-talking Toddlers - New research findings from the world's largest study on language emergence have revealed that one in four late-talking toddlers continue to have language problems by age seven.... Rapid, Dramatic 'Reverse Evolution' Documented In Tiny Fish Species - Evolution is supposed to inch forward over eons, but sometimes, at least in the case of a little fish called the threespine stickleback, the process can go in relative warp-speed reverse, according to a new study. The adaptation coincides with the '60s cleanup of toxic pollution in Seattle's Lake Washington.... Common Bacteria Activating Natural Killer T Cells May Cause Autoimmune Liver Disease - A bacteria commonly found in soil and water triggered autoimmune symptoms in mice similar to those found in an incurable liver disease called Primary Biliary Cirrhosis. Injecting laboratory mice with the bacterium -- Novosphingobium aromaticivorans -- prompted activation of natural killer T cells, which were critical to initiating autoimmune processes that led to liver disease.... Bears And Hibernation: New Insights Into Metabolism In Extreme Conditions - Due to their ability to produce a potent inhibitor of protein degradation, hibernating bears do not lose muscle mass after long periods of hibernation. The team researched for the first time the physiological reasons for an effect that is well known to the scientific community -- the fact that hibernating bears do not lose muscle tissue, only fat. The team studied the physiological response of muscle cells of laboratory rats grown with hibernating bear plasma outside the period of hibernation.... New Role Found For A Cardiac Progenitor Population - In a discovery that could one day lead to an understanding of how to regenerate damaged heart tissue, researchers have found that parent cells involved in embryonic development of the epicardium -- the cell layer surrounding the outside of the heart -- give rise to three important types of cells with potential for cardiac repair.... Student Innovation Could Improve Data Storage, Magnetic Sensors - Paul Morrow, who will graduate from Rensselaer Polytechnic Institute on May 17, has come a long way from his days as an elementary school student, pulling apart his mother's cassette player. The talented young physicist has developed two innovations that could vastly improve magnetic data storage and sense extremely low level magnetic fields in everything from ink on counterfeit currency to tissue in the human brain and heart.... Obesity And Unhealthy Lifestyles Linked To More Complex Urinary Problems - Obesity, unhealthy lifestyles and lower social economic status have been linked to more complex urinary problems in an American survey of 5,506 men and women. 58 percent were female, 32 percent were white, 32 percent were black and 34 percent were Hispanic.... Atmosphere Threatened By Nitrogen Pollutants Entering Ocean - A large quantity of nitrogen compounds -- emitted into the atmosphere by humans through the burning of fossil fuels and the use of nitrogen fertilizers -- enters the oceans and may lead to the removal of some carbon dioxide from the atmosphere, concluded a team of international scientists.... Innovative Swiss Programme Offers New Hope For Long Term Weight-loss - Successful long-term weight loss for obese patients can be achieved without drugs using a low-cost approach that involves innovative intensive therapy followed by long term support, new research shows. Swiss researchers found that more than half a group of morbidly obese patients maintained a 10 kg weight reduction and overall 70% of their patients succeeded in avoiding further weight gain after five years.... Spotlight On A Key Player In The Dance Of Chromosomes - Cell division is essential to life, but the mechanism by which emerging daughter cells organize and divvy up their genetic endowments is little understood. Researchers report on how a key motor protein orchestrates chromosome movements at a critical stage of cell division.... Aprotinin Used In Heart Surgery Associated With Increased Risk Of Death, Study Shows - Aprotinin is associated with a 50 percent increase in the relative risk of death, according to a major Canadian clinical trial comparing three drugs routinely used to prevent blood loss during heart surgery. The trial shows that approximately six per cent of patients who received aprotinin died within 30 days of surgery compared to four per cent of patients who received tranexamic acid or aminocaproic acid.... Window Of Opportunity For Restoring Oaks Small, New Study Finds - Communities of Oregon white oak were once widespread in the Pacific Northwest's western lowlands, but, today, they are in decline. Fire suppression, conifer and invasive plant encroachment, and land use change have resulted in the loss of as much as 99 percent of the oak communities historically present in some areas of the region. A new study indicates that if oaks are to be successfully restored, more aggressive management is needed within the next several decades.... Culture Affects How Teen Girls See Sexual Harassment - Teenage girls of all ethnic and socioeconomic backgrounds still experience sexism and sexual harassment -- but cultural factors may control whether they perceive sexism as an environmental problem or as evidence of their own shortcomings. Older girls and those from lower socioeconomic backgrounds experienced more sexism than their peers. Latina and Asian American girls reported less harassment than others. Sexual harassment may lead girls to believe demeaning behaviors are normal in relationships.... Warming Climate Is Changing Life On Global Scale, Says New Study - A vast array of physical and biological systems across the earth are being affected by warming temperatures caused by humans, says a new analysis of information not previously assembled all in one spot. The effects on living things include earlier leafing of trees and plants over many regions; movements of species to higher latitudes and altitudes in the northern hemisphere; changes in bird migrations in Europe, North America and Australia; and shifting of the oceans' plankton and fish from cold- to warm-adapted communities.... Discovery Of Cell Linked To Learning And Memory - Neuroscientists have discovered a fundamental component of the process that regulates memory formation. The discovery explains, for the first time, how new nerve cells form in an area of the brain associated with learning and memory -- which is known to deteriorate in people with stroke and dementia.... Introducing Virus Resistant 'Orange Bulldog' Pumpkins - Move over "Longface", "Spooktacular" and "Trickster" -- there's a new face in the pumpkin patch. Researchers recently introduced "Orange Bulldog," a new variety of the familiar fall fruit that may soon be available to consumers and wholesale pumpkin growers.... New Insights Into The Dynamics Of The Brain's Cortex - Using mathematics and a computer model of brain activity, scientists have shown a direct link between activity in the cortex and the microscopic structure of this neuronal network. Building on the existing body of research, the new work indicates that the spontaneous activity of small neuronal networks in the cortex consists of highly structured patterns rather than random "noise," shedding light on previous speculations.... Soils Contain Huge Amounts Of Ancient Carbon: When Does This Carbon Enter The Atmosphere? - Knowing that soils are a potential climate change time-bomb is nothing new -- but now, for the first time, a group of international scientists have found a way to distinguish just how much of these ancient carbon stores are being lost to the atmosphere as carbon dioxide. This means that in the future they may be able to accurately forecast how loss of soil carbon will impact on climate change. Globally, soils contain over 300 times the amount of carbon released each year due to the burning of fossil fuels, and this carbon has until now, been safely locked up below ground.... Distinct Treatment Needed: Tourette's And Obsessive-compulsive Disorder - While 30 to 50 percent of people with Gilles de la Tourette Syndrome are also affected with obsessive compulsive disorder, both illnesses might have a distinct neurocognitive profile, according to a new study in the journal Progress in Neuro-Psychopharmacology & Biological Psychiatry.... What's The Difference Between A Human And A Fruit Fly? - Fruit flies are dramatically different from humans not in their number of genes, but in the number of protein interactions in their bodies, according to scientists who have developed a new way of estimating the total number of interactions between proteins in any organism.... Endocrine Disruptors In Common Plastics Linked To Obesity Risk - Exposure during development either in the womb or during infancy to chemicals used to make products such as baby bottles, the lining of food tins and some plastic food wraps and containers, may contribute to the development of obesity, according to new research presented at the European Congress on Obesity. One of the chemicals under scrutiny is Bisphenol A. While eating too much and exercising too little are still considered the major cause of obesity, scientists have recently started investigating whether chemicals known as endocrine disruptors, which mimic or alter the effects of hormones in the body, could also play a role in making people fat.... Monarch Butterflies Help Explain Why Parasites Harm Hosts - It?s a paradox that has confounded evolutionary biologists since Charles Darwin: Since parasites depend on their hosts for survival, why do they harm them? A new study of monarch butterflies and the microscopic parasites that hitch a ride on them finds that the parasites strike a middle ground between the benefits gained by reproducing rapidly and the costs to their hosts.... Researchers Fine-tune Clot-busting Treatment For Bleeding In Brain - Doctors have fine-tuned the dosage and timing for administering clot-busting tissue plasminogen activator to patients with strokes caused by bleeding within the brain. The treatment dramatically increases survival for the deadly condition.... Self-Sustaining Solitary Light Wave Packets Could Inspire New Generation Of Computer Networks - European researchers say their study of self-sustaining solitary light wave packets could result in a new generation of computers and optical telecommunications networks. Using light rather than electronic or magnetic devices to store and move data is quicker, more energy efficient and cost-effective, and cavity solitons could be the key to unlocking this technology.... Global Warming May Lead To Increase In Kidney Stones Disease - Rising global temperatures could lead to an increase in kidney stones. Dehydration has been linked to stone disease, particularly in warmer climates, and global warming will exacerbate this effect. As a result, the prevalence of stone disease may increase, along with the costs of treating the condition.... Mice Can Do Without Humans' Most Treasured Genes - The mouse is a stalwart stand-in for humans in medical research, thanks to genomes that are 85 percent identical. But identical genes may behave differently in mouse and man, a study by evolutionary biologists reveals.... Common Drug Halts Lung Damage In Emphysema, Study Shows - An antibiotic commonly used to treat acne can prevent tissue damage caused by lung diseases such as emphysema, researchers have found. It appears to boost the body's ability to protect against damage to the lungs.... Recipe For Energy Saving Unravelled In Migratory Birds - Pointed wings, together with carrying less weight per wing area and avoidance of high winds and atmospheric turbulence, save a bird lots of energy during migration. This is shown for the first time in free-flying wild birds. Researchers state that climate change might have a critical impact on small migrants' energy budgets if it causes higher winds and atmospheric instability as predicted.... Statin Drug Used To Lower Cholesterol Effective For Hepatitis C Treatment, Study Shows - A statin drug used to lower cholesterol has been found to stop hepatitis C, especially in patients resistant to standard treatment. The drug, Fluvastatin, has been approved since 1993 by the U.S. Food and Drug Administration for the treatment of elevated cholesterol in adults. Millions of patients have taken Fluvastatin for cholesterol without difficulty.... Chemistry Of Airborne Particulate: Lung Interactions Revealed - Exactly how airborne particulates harm our lungs still puzzles epidemiologists, physicians, environmental scientists, and policy makers. Now California Institute of Technology researchers have found that they act by impairing the lungs' natural defenses against ozone.... Could Violent Video Games Reduce Rather Than Increase Violence? - Does playing violent video games make players aggressive? It is a question that has taxed researchers, sociologists, and regulators ever since the first console was plugged into a TV and the first shots fired in a shoot 'em up game. Now researchers suggest that there is scant scientific evidence that video games are anything but harmless, and that they do not lead to real world aggression. Moreover, new research shows that previous work is biased towards the opposite conclusion.... Physicists Demonstrate How Information Can Escape From Black Holes - Physicists have provided a mechanism by which information can be recovered from black holes -- and the first plausible mechanism for how information might escape from black holes, those regions of space where gravity is so strong that, according to Einstein's theory of general relativity, not even light can escape. The team's findings pave the way toward ending a decades-long debate sparked by renowned physicist Steven Hawking.... First Conclusive Evidence Of Alzheimer's-like Brain Tangles In Nonhuman Primates Found - Researchers have discovered the first conclusive evidence of Alzheimer's-like neurofibrillary brain tangles in an aged nonhuman primate. They also discovered deposits of beta-amyloid protein in plaques and blood vessels of the chimp's brain tissue, although these changes were infrequent compared to Alzheimer's in humans. The finding could move the scientific community closer to understanding why age-related neurodegenerative diseases are uniquely human and seem to never fully manifest in other species, including our closest evolutionary relative, the chimpanzee.... Estimated 3.2 Million Burmese Potentially Affected By Cyclone - Researchers have developed geographic risk models, which indicate that as many as 3.2 million Burmese are estimated to be affected by the devastation caused by Cyclone Nargis. Using Geographic Information Systems, the researchers calculated the likely distribution of the population of Burma (also known as Myanmar) and developed maps of the regions at greatest risk from the storm's effects.... HPV Testing Offers Women Protection For Twice As Long As Smear Testing - The long term findings of a study carried out at Hammersmith hospital reveal that testing for human papilloma virus can be twice as effective at protecting women from developing cervical abnormalities as smear testing.... Accounting Practices Ultimately Affect Global Economy - The quality of financial reporting differs from country to country. In a recent study, researchers found that uniform and strict auditor enforcement may be more important than a country's accounting standards, and the quality of reporting can affect the whole economy.... Mothers' Depression Linked To Young Children's Injuries - Infants and toddlers whose mothers are severely depressed are almost three times more likely to suffer accidental injuries than other children in the same age group, according to a new study. The study's findings suggest that proper treatment for depression would improve not only the mothers' health, but the health of young children as well.... Copyright © 2008, Magic Maldives. All Rights Reserved. |