ScienceDaily: Latest Science News |
| It's Raining Pentagons? Novel Ice Structure May Help Seed Clouds And Cause Rain Posted: 09 Mar 2009 08:00 AM PDT Scientists have discovered a novel one dimensional ice chain structure built from pentagons that may prove to be a step toward the development of new materials which can be used to seed clouds and cause rain. |
| Missing Link Between Fructose, Insulin Resistance Found Posted: 09 Mar 2009 08:00 AM PDT A new study in mice sheds light on the insulin resistance that can come from diets loaded with high-fructose corn syrup, a sweetener found in most sodas and many other processed foods. |
| New Building Design Withstands Earthquake Simulation Posted: 09 Mar 2009 08:00 AM PDT Researchers have simulated an off-the-charts earthquake in a laboratory to test their new technique for bracing high-rise concrete buildings. Their technique passed the test, withstanding more movement than an earthquake would typically demand. |
| Moderate Alcohol Intake Associated With Bone Protection Posted: 09 Mar 2009 08:00 AM PDT In an epidemiological study of men and post-menopausal women primarily over 60 years of age, regular moderate alcohol intake was associated with greater bone mineral density (BMD). Associations were strongest for beer and wine and, importantly, BMD was significantly lower in men drinking more than two servings of liquor per day. |
| Chicken Manure Biodegrades Crude Oil In Contaminated Soil Posted: 09 Mar 2009 08:00 AM PDT It is an unlikely application, but researchers in China have discovered that chicken manure can be used to biodegrade crude oil in contaminated soil. Writing in the International Journal of Environment and Pollution the team explains how bacteria in chicken manure break down 50 percent more crude oil than soil lacking the guano. |
| Older Adults Control Emotions More Easily Than Young Adults Posted: 09 Mar 2009 08:00 AM PDT A research study found that regulating emotions -- such as reducing negative emotions or inhibiting unwanted thoughts -- is a resource-demanding process that disrupts the ability of young adults to simultaneously or subsequently perform tasks. |
| Posted: 09 Mar 2009 05:00 AM PDT By listening in on the chatter between neurons in various parts of the brain, researchers have taken steps toward fully understanding just how memories are formed, transferred, and ultimately stored in the brain -- and how that process varies throughout the various stages of sleep. |
| Blood Test Predicts Chance Of Dementia Posted: 09 Mar 2009 05:00 AM PDT Researchers have discovered the amount of growth factor progranulin in blood is a predictor of Frontotemporal Dementia (FTD). Progranulin plays a major role in the survival of brain cells. People producing less progranulin have higher risk of contracting FTD. The researchers developed a test, measuring the amount of progranulin in the blood thus predicting a person's risk. This offers possibilities for early detection. |
| Transparent Zebrafish A Must-see Model For Atherosclerosis Posted: 09 Mar 2009 05:00 AM PDT We usually think of fish as a "heart-healthy" food. Now fish are helping researchers better understand how heart disease develops in studies that could lead to new drugs to slow disease and prevent heart attacks. |
| Certain Combined Medications Following Heart Attack May Increase Risk Of Death Posted: 09 Mar 2009 05:00 AM PDT Following an acute coronary syndrome such as a heart attack or unstable angina, patients who receive a medication to reduce the risk of gastrointestinal bleeding that may be associated with the use of the antiplatelet drug clopidogrel and aspirin have an increased risk of subsequent hospitalization for acute coronary syndrome or death, according to a new study. |
| Insecticidal Toxin Useless Without 'Friendly' Bacteria Accomplices Posted: 09 Mar 2009 05:00 AM PDT The toxin produced by the bacterium Bacillus thuringiensis is a popular insecticide used to control pest moths and butterflies, and in some GM pest-proof crops. In a study published in BMC Biology, researchers show that its effectiveness against a number of susceptible Lepidopteran species depends on the presence of the normally "friendly" bacteria that colonize their guts. Without these bacteria, the Bt toxin can become impotent in some species. |
| Fast-food Density And Neighborhood Walkability Linked To Residents' Weight And Waist Size Posted: 09 Mar 2009 05:00 AM PDT Scientists show that a high-density of fast food outlets was associated with an increase of three pounds in weight and .8 inches in waist circumference among neighborhood residents who frequently ate at those restaurants. |
| Sea Level Rises Offer New Explanation For Puzzling Biological Divide Along Malay Peninsula Posted: 09 Mar 2009 02:00 AM PDT More than 58 rapid sea level rises in the last five million years could account for an apparently abrupt switch in the kinds in of mammals found along the Malay Peninsula in southeast Asia -- from mainland species to island species -- in the absence of any geographical barrier, ecologists say. |
| Using Hair To Manage HIV/AIDS And Predict Treatment Success Posted: 09 Mar 2009 02:00 AM PDT High levels of antiretrovirals in hair correlated with success in HIV viral suppression in treatment and did so better than any of the other variables usually considered to predict response. |
| NASA's Mars Rover Spirit Faces Circuitous Route Posted: 09 Mar 2009 02:00 AM PDT Loose soil piled against the northern edge of a low plateau called "Home Plate" has blocked NASA's Mars Exploration Rover Spirit from taking the shortest route toward its southward destinations for the upcoming Martian summer and following winter. |
| 'Pre-diabetics' Face Heightened Risk Of Heart Disease Posted: 09 Mar 2009 02:00 AM PDT Older adults who have impaired glucose tolerance but who are not considered diabetic are at elevated risk for heart disease and may benefit from preventive therapies, according to a new study. |
| Wheat Gene With Resistance To Stripe Rust Discovered Posted: 09 Mar 2009 02:00 AM PDT Experts on wheat biotechnology have discovered a gene that will make bread wheat capable of resisting stripe rust, a fungus that causes crop losses in many states. |
| How Multiple Childhood Maltreatments Lead To Greater Adolescent Binge Drinking Posted: 09 Mar 2009 02:00 AM PDT Researchers examined the relationship of binge drinking with the co-occurence of such specific childhood maltreatments as neglect, physical abuse and sexual abuse in combination and separately on adolescents. The effects of these adverse maltreatments increase an individual's risk for alcohol problems in adolescence. |
| Amazon Rainforest Carbon Sink Threatened By Drought Posted: 08 Mar 2009 11:00 PM PDT The Amazon is surprisingly sensitive to drought, according to new research conducted throughout the world's largest tropical forest. The 30-year study provides the first solid evidence that drought causes massive carbon loss in tropical forests, mainly through killing trees. |
| TB Breakthrough Could Lead To Stronger Vaccine Posted: 08 Mar 2009 11:00 PM PDT A breakthrough strategy to improve the effectiveness of the only tuberculosis vaccine approved for humans provided superior protection against the deadly disease in a pre-clinical test. |
| Scientists Reconstruct An Ancient Greek Musical Instrument, The Epigonion Posted: 08 Mar 2009 11:00 PM PDT The ASTRA project, standing for Ancient instruments Sound/Timbre Reconstruction Application, has revived an instrument that hasn't been played or heard in centuries. Using the Enabling Grids for E-sciencE infrastructure for computing power, scientists have reconstructed the "epigonion," a harp-like, stringed instrument used in ancient Greece. |
| Patients With Severe Asthma Benefit From Antibody Injection, Researchers Find Posted: 08 Mar 2009 11:00 PM PDT Mepolizumab works by blocking the production of eosinophils. By preventing their production, researchers were able to improve asthma, reduce the need for prednisone and really show that eosinophils are important in causing asthma symptoms in these patients. |
| Promising Biofuel Made From Commercial Yeasts Upgraded With A New Enzyme Posted: 08 Mar 2009 11:00 PM PDT Scientist have discovered a new enzyme which teaches yeast cells to ferment xylose into ethanol. Xylose is an unused waste sugar in the cellulosic ethanol production process. |
| TV Ratings For Kids' Shows Don't Reflect Aggressive Content, Psychologists' Study Finds Posted: 08 Mar 2009 11:00 PM PDT A new study by psychologists has found that TV ratings don't accurately reflect the aggressive content found in shows popular among children -- even cartoons. |
| Humans Can Sense 'Smell Of Fear' In Sweat, Psychologist Says Posted: 08 Mar 2009 08:00 PM PDT When threatened, many animals release chemicals as a warning signal to members of their own species, who in turn react to the signals and take action. New research suggests a similar phenomenon occurs in humans. |
| Big Waist Size Linked To Decreased Lung Function Posted: 08 Mar 2009 08:00 PM PDT A new study has found that a high waist circumference is strongly associated with decreased lung function -- independent of smoking history, sex, body mass index and other complicating factors. |
| Unusual Reproductive Life Of The Naked Mole-Rat Posted: 08 Mar 2009 08:00 PM PDT Naked mole-rats are very ugly, but also very interesting mammals. Now scientists want to find out whether the males influence the distribution of male and female progeny. |
| Posted: 08 Mar 2009 08:00 PM PDT Breast cancer patients 35 years old and younger have higher rates of their cancer returning after treatment than older women patients with the same stage of cancer, and their risk of recurrence is greatly impacted by the type of treatment they received, according to a new study. |
| New Models Question Old Assumptions About How Many Molecules It Takes To Control Cell Division Posted: 08 Mar 2009 08:00 PM PDT A single cell is exquisitely sensitive to its surroundings. It receives input signals, processes the information, makes decisions, and issues commands for making the proper response. As with any control system, noise -- errors, slip-ups, misreads -- can get in the way of correct decision making. Biologists and engineers have created a mathematical model to explore the roles of noise in controlling the basic events of the cell cycle. |
| Flexible Approach To Acute Conflict Results In More Frustration and Anger, Study Shows Posted: 08 Mar 2009 08:00 PM PDT Researchers show that having a more flexible approach to resolving an acute conflict interaction results in more frustration and anger. Researchers observed a sample of 65 undergraduate students role-playing a stressful task with a "neighbor" who was portrayed by a research assistant. |
| Evolution, Ecosystems May Buffer Some Species Against Climate Change Posted: 08 Mar 2009 02:00 PM PDT Although ecologists expect many species will be harmed by climate change, some species could be buffered by their potential to evolve or by changes in their surrounding ecosystems. |
| Turmeric Ingredient Makes Membranes Behave For Better Health Posted: 08 Mar 2009 02:00 PM PDT Revered in India as "holy powder," the marigold-colored spice known as turmeric has been used for centuries to treat wounds, infections and other health problems. In recent years, research into the healing powers of turmeric's main ingredient, curcumin, has burgeoned, as its astonishing array of antioxidant, anti-cancer, antibiotic, antiviral and other properties has been revealed. |
| NASA's Kepler Mission Rockets To Space In Search Of Other Earths Posted: 08 Mar 2009 02:00 PM PDT NASA's Kepler mission successfully launched into space from Cape Canaveral Air Force Station, Fla., aboard a United Launch Alliance Delta II on Friday, March 6. Kepler is designed to find the first Earth-size planets orbiting stars at distances where water could pool on the planet's surface. Liquid water is believed to be essential for the formation of life. |
| Grape Extracts May Be Effective Against Harmful Gut Bacteria Posted: 08 Mar 2009 02:00 PM PDT Various grape extracts and their compounds were found to be effective at inhibiting Helicobacter pylori, one of the leading causes of gastritis in humans. |
| Cross-dressing Rubidium May Reveal Clues For Exotic Computing Posted: 08 Mar 2009 02:00 PM PDT Researchers have learned how to "dress up" neutral atoms with laser light to make them act in ways similar to a charged particle like an electron. The costume scheme could be a way for physicists to study the role of fractionally charged particles in an exotic form of quantum computing. |
| Posted: 08 Mar 2009 02:00 PM PDT Cell phones are a danger on the road in more ways than one. Two new studies show that talking on the phone while traveling, whether you're driving or on foot, is increasing both pedestrian deaths and those of drivers and passengers, and recommend crackdowns on cell use by both pedestrians and drivers. |
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