ScienceDaily: Top News |
- Satellite measurements reveal gravity dip from ice loss in West Antarctica
- Cold Atom Laboratory chills atoms to new lows
- Aral Sea loses its eastern lobe -- first time in modern history, NASA's Terra satellite shows
- CDC and Texas Health Department confirm first Ebola case diagnosed in the U.S.
- NASA's Swift mission observes mega flares from nearby red dwarf star
- Blades of grass inspire advance in organic solar cells
- Study uncovers important process for immune system development
- Disease decoded: Gene mutation may lead to development of new cancer drugs
- New dimension for integrated circuits: 3-D nanomagnetic logic
- Study shows how chimpanzees share skills: Evidence of new behavior being transmitted socially
- How dinosaur arms turned into bird wings
- Novel method for making electrical cellulose fibers
- Memory loss associated with Alzheimer's reversed: Small trial succeeds using systems approach to memory disorders
- Depression increasing across the United States
- High-speed drug screen developed
- How to predict who will suffer the most from stress
- Medications are main culprit of allergic deaths in U.S., comprehensive study finds
- Revisiting Stokes drift: Waves of the future
- A heartbeat away? Hybrid 'patch' could replace transplants
- Potential biomarker to detect SCID (severe combined immunodeficiency)
- Pollution linked to lethal sea turtle tumors
- How to make a 'perfect' solar absorber
- How to beat monk parakeets at their own game: Scientists prevent nests on utility poles
- New material steals oxygen from the air: One spoonful absorbs all the oxygen in a room
- Synthetic sperm protein raises the chance for successful in vitro fertilization
- New blood test determines whether you have or are likely to get cancer
- Scientists identify which genes are active in muscles of men, women
- Adolescent exposure to THC may cause immune systems to go up in smoke
- High metabolic rates and low temperatures were associated with high risk-taking behavior in birds
- Entanglement made tangible
- Bacteria may have ability to reduce impact of diazepam on UK river environments
- Breakthrough study discovers six changing faces of 'global killer' bacteria
- Fuel cell-powered mobile lights tested, proven, ready for commercial use
- Florida's climate boosts soil-carbon storage, cuts greenhouse emissions
- Ebola: New therapies to combat virus
- Unexpected new mechanism reveals how molecules become trapped in ice
- Taking thin films to the extreme
- Laser-guided herds of sea monkeys show how zooplankton migrations may affect global ocean currents
- Genomic data could help doctors know whether to prescribe statins
- Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence
- Alcohol makes smiles more 'contagious,' but only for men
- Endoscopists recommend frequent colonoscopies, leading to its overuse, study finds
- High-dose vitamin D for ICU patients who are vitamin D deficient does not improve outcomes
- Gut bacteria promote obesity in mice
- Coral's best defender against an army of sea stars: Crabs
- New learning mechanism for individual nerve cells
- Dietary polyunsaturated fatty acids linked to reduced risk of coronary heart disease
- Cancer therapy: Driving cancer cells to suicide
- Space debris expert warns of increasing small satellite collision risk
- Fish need time to adjust to new environmental conditions
- First evidence that reptiles can learn through imitation
- Biodiversity does not always improve resistance of forest ecosystems to drought
- Astronomers find 'cousin' planets around twin stars
- Safer than silver: Antibacterial material made with algae
- Genetic test would help cut bowel cancer spread, research suggests
- Development models put to the test: Low birth weight children are particularly vulnerable to environmental influences
- Selectively rewiring brain's circuitry to treat depression
- Asthma symptoms kicking up? Check your exposure to air pollution
- New discovery approach accelerates identification of potential cancer treatments
Satellite measurements reveal gravity dip from ice loss in West Antarctica Posted: 30 Sep 2014 04:54 PM PDT Although not designed to map changes in Earth's gravity over time, ESA's GOCE satellite has shown that the ice lost from West Antarctica over the last few years has left its signature. More than doubling its planned life in orbit, GOCE spent four years measuring Earth's gravity in unprecedented detail. Researchers have found that the decrease in the mass of ice during this period was mirrored in GOCE's measurements. |
Cold Atom Laboratory chills atoms to new lows Posted: 30 Sep 2014 04:45 PM PDT |
Aral Sea loses its eastern lobe -- first time in modern history, NASA's Terra satellite shows Posted: 30 Sep 2014 04:33 PM PDT |
CDC and Texas Health Department confirm first Ebola case diagnosed in the U.S. Posted: 30 Sep 2014 04:09 PM PDT The Centers for Disease Control and Prevention (CDC) confirmed today, through laboratory tests, the first case of Ebola to be diagnosed in the United States in a person who had traveled to Dallas, Texas from Liberia. The patient did not have symptoms when leaving West Africa, but developed symptoms approximately four days after arriving in the U.S. on Sept. 20. |
NASA's Swift mission observes mega flares from nearby red dwarf star Posted: 30 Sep 2014 02:15 PM PDT On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting series of explosions was as much as 10,000 times more powerful than the largest solar flare ever recorded. |
Blades of grass inspire advance in organic solar cells Posted: 30 Sep 2014 11:42 AM PDT Using a bio-mimicking analog of one of nature's most efficient light-harvesting structures, blades of grass, an international research team has taken a major step in developing long-sought polymer architecture to boost power-conversion efficiency of light to electricity for use in electronic devices. |
Study uncovers important process for immune system development Posted: 30 Sep 2014 11:42 AM PDT |
Disease decoded: Gene mutation may lead to development of new cancer drugs Posted: 30 Sep 2014 11:42 AM PDT |
New dimension for integrated circuits: 3-D nanomagnetic logic Posted: 30 Sep 2014 11:42 AM PDT Electrical engineers have demonstrated a new kind of building block for digital integrated circuits. Their experiments show that future computer chips could be based on three-dimensional arrangements of nanometer-scale magnets instead of transistors. As CMOS, the main enabling technology of the semiconductor industry, approaches fundamental limits, researchers are exploring 'magnetic computing' as an alternative. |
Study shows how chimpanzees share skills: Evidence of new behavior being transmitted socially Posted: 30 Sep 2014 11:41 AM PDT |
How dinosaur arms turned into bird wings Posted: 30 Sep 2014 11:41 AM PDT Although we now appreciate that birds evolved from a branch of the dinosaur family tree, a crucial adaptation for flight has continued to puzzle evolutionary biologists. During the millions of years that elapsed, wrists went from straight to bent and hyperflexible, allowing birds to fold their wings neatly against their bodies when not flying. A resolution to this impasse is now provided by an exciting new study. |
Novel method for making electrical cellulose fibers Posted: 30 Sep 2014 11:34 AM PDT |
Posted: 30 Sep 2014 11:34 AM PDT |
Depression increasing across the United States Posted: 30 Sep 2014 10:28 AM PDT Americans are more depressed now than they have been in decades, a recent study shows. Analyzing data from 6.9 million adolescents and adults from all over the country, researchers found that Americans now report more psychosomatic symptoms of depression, such as trouble sleeping and trouble concentrating, than their counterparts in the 1980s. |
High-speed drug screen developed Posted: 30 Sep 2014 10:27 AM PDT |
How to predict who will suffer the most from stress Posted: 30 Sep 2014 10:27 AM PDT New research has found a way to identify those most susceptible to stress. That's a huge help for health-care professionals working to stop stress before it gets out of control. "By pinpointing those in the general population who are most vulnerable to stress, we can intervene before they hit the breaking point -- and hopefully prevent the negative consequences of stress by doing so. That's why it's important to have an objective diagnostic tool like this one," a researcher says. |
Medications are main culprit of allergic deaths in U.S., comprehensive study finds Posted: 30 Sep 2014 10:25 AM PDT Medications are the leading cause of allergy-related sudden deaths in the U.S., according to an analysis of death certificates from 1999 to 2010. The study also found that the risk of fatal drug-induced allergic reactions was particularly high among older people and African-Americans and that such deaths increased significantly in the U.S. in recent years. |
Revisiting Stokes drift: Waves of the future Posted: 30 Sep 2014 10:25 AM PDT The 19th-century 'Stokes drift' concept that a tiny sphere on a small wave would trace a spiral, not a closed circle, was assumed to be unlikely to occur in nature. But using 21st-century technologies, scientists found that not only do the particles move, they move predictably, and can even be planned. |
A heartbeat away? Hybrid 'patch' could replace transplants Posted: 30 Sep 2014 08:34 AM PDT |
Potential biomarker to detect SCID (severe combined immunodeficiency) Posted: 30 Sep 2014 08:33 AM PDT |
Pollution linked to lethal sea turtle tumors Posted: 30 Sep 2014 08:33 AM PDT Polluted urban and farm runoff in Hawaii has been linked to lethal tumors in endangered sea turtles. A new study finds that excess nitrogen in the runoff accumulates in algae that the turtles eat and can cause the disease Fibropapillomatosis which is the leading known cause of death in endangered green sea turtles. The disease causes the formation of tumors on the animals' eyes, flippers, and internal organs. |
How to make a 'perfect' solar absorber Posted: 30 Sep 2014 08:32 AM PDT Researchers have developed a solar cell that can tap the sun's full radiation spectrum. The material is a two-dimensional metallic dielectric photonic crystal, and has the additional benefits of absorbing sunlight from a wide range of angles and withstanding extremely high temperatures. Perhaps most importantly, the material can also be made cheaply at large scales. |
How to beat monk parakeets at their own game: Scientists prevent nests on utility poles Posted: 30 Sep 2014 08:32 AM PDT |
New material steals oxygen from the air: One spoonful absorbs all the oxygen in a room Posted: 30 Sep 2014 08:32 AM PDT |
Synthetic sperm protein raises the chance for successful in vitro fertilization Posted: 30 Sep 2014 08:32 AM PDT Having trouble getting pregnant -- even with in vitro fertilization? Here's some hope: A new research report explains how scientists developed a synthetic version of a sperm-originated protein which induced embryo development in human and mouse eggs similar to the natural triggering of embryo development by the sperm cell during fertilization. |
New blood test determines whether you have or are likely to get cancer Posted: 30 Sep 2014 08:32 AM PDT Early detection and the risk assessment of cancer as easy as a simple blood test, a new study suggests. "A blood test to detect cancer and determine one's risk for cancer is a game-changer," said one expert. "A test like this -- which is sophisticated in design and simple to perform -- could make effective cancer screening available in places where traditional medical technology might not be available." |
Scientists identify which genes are active in muscles of men, women Posted: 30 Sep 2014 08:31 AM PDT |
Adolescent exposure to THC may cause immune systems to go up in smoke Posted: 30 Sep 2014 08:31 AM PDT |
High metabolic rates and low temperatures were associated with high risk-taking behavior in birds Posted: 30 Sep 2014 08:31 AM PDT A long-term study on different populations of great tits has shown that risk-taking behavior correlates with both metabolic rate and ambient temperature. High metabolic rates and low temperatures were associated with high risk-taking behavior, as in these scenarios birds were more likely to approach potential predators. |
Posted: 30 Sep 2014 08:31 AM PDT |
Bacteria may have ability to reduce impact of diazepam on UK river environments Posted: 30 Sep 2014 08:31 AM PDT A reaction pathway that could reduce the potentially harmful impact of diazepam and similar chemicals on the UK's freshwater environment has been discovered by researchers. Diazepam -- used to treat anxiety and other similar conditions -- has been detected in rivers across the UK and Europe, having been released from waste water treatment plants. At the levels recorded, it has the potential to produce harmful ecological effects in surface waters, including changing the behavior of fish shoals and their ability to sense danger from predators. |
Breakthrough study discovers six changing faces of 'global killer' bacteria Posted: 30 Sep 2014 08:19 AM PDT |
Fuel cell-powered mobile lights tested, proven, ready for commercial use Posted: 30 Sep 2014 08:16 AM PDT |
Florida's climate boosts soil-carbon storage, cuts greenhouse emissions Posted: 30 Sep 2014 08:16 AM PDT Sequestration helps mitigate carbon-based gases from getting into the atmosphere. A new study shows Florida's warm, wet climate helps keep carbon in the soil. Soil-stored carbon can slow the build-up of carbon-based gases in the atmosphere, a phenomenon believed to be a cause of global climate change. |
Ebola: New therapies to combat virus Posted: 30 Sep 2014 08:14 AM PDT New human antibody therapies have been developed for people exposed to the deadly Ebola and Marburg viruses, researchers report. Researchers are using a high-efficiency method to isolate and generate large quantities of human antibodies from the blood of people who have survived Ebola and Marburg infections and who are now healthy. No live virus is used, they say. |
Unexpected new mechanism reveals how molecules become trapped in ice Posted: 30 Sep 2014 08:14 AM PDT Expanding our knowledge of the way molecules interact with ice surfaces is a key goal not only for climate change but also a much wider range of other environmental, scientific and defense-related issues. Now, a team of researchers has discovered a new mechanism they call "stable energetic embedding" of atoms and molecules within ice. |
Taking thin films to the extreme Posted: 30 Sep 2014 08:14 AM PDT Applying a well-known optical phenomenon called thin-film interference, a group of researchers has demonstrated the ability to "paint" ultra-thin coatings onto a rough surface -- work that holds promise for making future, flexible electronic devices, creating advanced solar cells and detailing the sides of next-gen rocket ships and spacecraft with extremely lightweight decorative logos. |
Laser-guided herds of sea monkeys show how zooplankton migrations may affect global ocean currents Posted: 30 Sep 2014 08:14 AM PDT Sea monkeys have captured the popular attention of both children and aquarium hobbyists because of their easily observable life cycle. Physicists are interested in a shorter-term pattern: Like other zooplankton, brine shrimp vertically migrate in large groups throughout the day in response to changing light conditions. New research suggests that the collective movement of small marine organisms could affect global ocean circulation patterns on a level comparable to the wind and the tides. |
Genomic data could help doctors know whether to prescribe statins Posted: 30 Sep 2014 06:06 AM PDT Genomic data could predict whether statins will benefit a patient or not, according to a new article. The research suggests that genomic data alone can explain around 15 percent of patients' responses to a cholesterol-lowering statin, and further studies could increase the accuracy of these predictions. |
Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence Posted: 30 Sep 2014 06:06 AM PDT Researchers emphasize that polyploidy and the important role it has played, especially in plant evolution, would not have gained the recognition it deserves would it not have been for its staunch proponent, G. L. Stebbins. In the mid-20th century Stebbins synthesized what was known at that time about polyploidy, classifying different types of ploidy, discussing ancient polyploidy events, and investigating hybridizing species and polyploid derivatives. |
Alcohol makes smiles more 'contagious,' but only for men Posted: 30 Sep 2014 06:06 AM PDT Consuming an alcoholic beverage may make men more responsive to the smiles of others in their social group, according to new research. The findings suggest that, for men, alcohol increases sensitivity to rewarding social behaviors like smiling, and may shed light on risk factors that contribute to problem drinking among men. |
Endoscopists recommend frequent colonoscopies, leading to its overuse, study finds Posted: 30 Sep 2014 06:06 AM PDT An overuse of colonoscopies for colorectal cancer screening and surveillance has been identified by a retrospective study. The study demonstrated that endoscopists commonly recommended shorter follow-up intervals than established guidelines support, and these recommendations were strongly correlated with subsequent colonoscopy overuse. |
High-dose vitamin D for ICU patients who are vitamin D deficient does not improve outcomes Posted: 30 Sep 2014 06:06 AM PDT |
Gut bacteria promote obesity in mice Posted: 30 Sep 2014 06:06 AM PDT A species of gut bacteria called Clostridium ramosum, coupled with a high-fat diet, may cause animals to gain weight, researchers report. They observed that mice harboring human gut bacteria including C. ramosum gained weight when fed a high-fat diet. Mice that did not have C. ramosum were less obese even when consuming a high-fat diet, and mice that had C. ramosum but consumed a low-fat diet also stayed lean. |
Coral's best defender against an army of sea stars: Crabs Posted: 30 Sep 2014 06:06 AM PDT Coral reefs face a suite of perilous threats in today's ocean. From overfishing and pollution to coastal development and climate change, fragile coral ecosystems are disappearing at unprecedented rates. Despite this trend, some species of corals surrounding the island of Moorea in French Polynesia have a natural protector in their tropical environment: coral guard-crabs. New research has helped unravel the complex symbiotic relationship between these crabs and the coral reefs they live in and defend. |
New learning mechanism for individual nerve cells Posted: 30 Sep 2014 06:05 AM PDT Learning is based on the strengthening or weakening of the contacts between the nerve cells in the brain -- this has been the traditional understanding. However, this has been challenged by new research findings. These indicate that there is also a third mechanism -- a kind of clock function that gives individual nerve cells the ability to time their reactions. |
Dietary polyunsaturated fatty acids linked to reduced risk of coronary heart disease Posted: 30 Sep 2014 06:04 AM PDT Dietary polyunsaturated fatty acids may reduce the risk of coronary heart disease, a recent study has found. The sources of polyunsaturated fatty acids include fish, vegetable oils, and nuts. The present study shows, in line with earlier research, that the risk of cardiovascular diseases can be reduced by replacing saturated fats with polyunsaturated fats. |
Cancer therapy: Driving cancer cells to suicide Posted: 30 Sep 2014 06:04 AM PDT |
Space debris expert warns of increasing small satellite collision risk Posted: 30 Sep 2014 06:04 AM PDT |
Fish need time to adjust to new environmental conditions Posted: 30 Sep 2014 06:04 AM PDT |
First evidence that reptiles can learn through imitation Posted: 30 Sep 2014 06:04 AM PDT |
Biodiversity does not always improve resistance of forest ecosystems to drought Posted: 30 Sep 2014 06:04 AM PDT The resistance of forests to drought has been studied, with a focus on the diversity of tree species. This study shows that mixed species forests are more resistant to drought stress than monocultures in some regions only: tree diversity may afford resistance to drought stress only in drought-prone areas, i.e. in regions where the frequency and severity of drought during the growing season is high. |
Astronomers find 'cousin' planets around twin stars Posted: 30 Sep 2014 06:04 AM PDT Astronomers have found two new Jupiter-sized extra-solar planets, each orbiting one star of a binary-star system. Most known extra-solar planets orbit stars that are alone, like our Sun. Yet many stars are part of binary systems, twin stars formed from the same gas cloud. Now, for the first time, two stars of a binary system are both found to host a "hot Jupiter'' exoplanet. |
Safer than silver: Antibacterial material made with algae Posted: 30 Sep 2014 06:03 AM PDT |
Genetic test would help cut bowel cancer spread, research suggests Posted: 30 Sep 2014 06:03 AM PDT Screening families of patients with bowel cancer for a genetic condition would cut their risk of developing bowel, womb, and ovarian cancers, new research has found. "It's critical that more lives are saved by ensuring people gain access to the screening surveillance they need, so that bowel cancer can be ruled out first, not last, in younger patients," researchers note. |
Posted: 30 Sep 2014 06:03 AM PDT Low birth weight children are more vulnerable to environmental influences than infants born with normal weight. When brought up with a great deal of sensitivity, they will be able to catch up in school, but on average they will not become better students than normal birth weight children. This result, provided by an international psychologist team, has confirmed the so-called diathesis-stress model of development for low birth weight populations. |
Selectively rewiring brain's circuitry to treat depression Posted: 30 Sep 2014 06:03 AM PDT On Star Trek, it is easy to take for granted the incredible ability of futuristic doctors to wave small devices over the heads of both humans and aliens, diagnose their problems through evaluating changes in brain activity or chemistry, and then treat behavior problems by selectively stimulating relevant brain circuits. While that day is a long way off, transcranial magnetic stimulation (TMS) of the left dorsolateral prefrontal cortex does treat symptoms of depression in humans by placing a relatively small device on a person's scalp and stimulating brain circuits. |
Asthma symptoms kicking up? Check your exposure to air pollution Posted: 30 Sep 2014 06:01 AM PDT |
New discovery approach accelerates identification of potential cancer treatments Posted: 30 Sep 2014 06:01 AM PDT A new approach to discovering potential cancer treatments has been described by researchers that requires a fraction of the time needed for more traditional methods. The researchers have used their method to identify an antibody that stops breast cancer tumor growth in animal models, and they are investigating the antibody as a potential treatment in humans. |
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