ScienceDaily: Latest Science News |
- Guiding Light Around Corners With New Metamaterial Device
- Sun Exposure May Trigger Certain Autoimmune Diseases In Women
- New Theory On Why Male, Female Lemurs Same Size: 'Passive' Mate Guarding Influenced Evolution Of Lemur Size
- Mutation Responsible For Cystic Fibrosis Also Involved In Muscle Atrophy
- Opening A New Window On Daylight, While Reducing Electricity Consumption
- Invisible Ink? What Rorschach Tests Really Tell Us
- Extraterrestrial Platinum Was 'Stirred' Into Earth
- Virus Linked To Some Cases Of Common Skin Cancer
- Food Additive May One Day Help Control Blood Lipids And Reduce Disease Risk
- Experimental Treatment Halts Hypoxic-ischemic Brain Injury In Newborns, Study Suggests
- Bacteria Pack Their Own Demise
- Americans Spent $33.9 Billion Out-of-pocket On Complementary And Alternative Medicine In One Year
- Eating High Levels Of Fructose Impairs Memory In Rats
- New Location Found For Regulation Of RNA Fate
- Energetic Bottleneck Factors In Catastrophic Winter Seabird Losses
- Breast Cancer Hormone Receptor Status And Risk Of A Second Primary Tumor
- Actions Taken Over Next Decade To Demonstrate And Deploy Key Technologies Will Determine US Energy Future
- Scientists Announce Mass Participation Experiment To Cheer-up The UK
| Guiding Light Around Corners With New Metamaterial Device Posted: 01 Aug 2009 02:00 PM PDT Scientists have built a device from metamaterials and transformational optics that delivers a complex set of instructions capable of guiding light with unprecedented accuracy. The discovery expands on earlier "cloaking" efforts to guide light around objects or space. |
| Sun Exposure May Trigger Certain Autoimmune Diseases In Women Posted: 01 Aug 2009 02:00 PM PDT Ultraviolet radiation from sunlight may be associated with the development of certain autoimmune diseases, particularly in women, according to a new study. |
| Posted: 01 Aug 2009 02:00 PM PDT Biologists are offering a new theory for the long-standing mystery of why male lemurs are no larger than females. The theory posits that male lemurs guard their mates just like other primates. But whereas evolution favors larger males in gorillas and other species that guard females by fighting, lemurs have evolved to passively guard their mates. |
| Mutation Responsible For Cystic Fibrosis Also Involved In Muscle Atrophy Posted: 01 Aug 2009 02:00 PM PDT Patients with cystic fibrosis usually experience significant muscle loss, a symptom traditionally considered to be a secondary complication of the devastating genetic disease. However, a recent study reverses the equation: new results show that muscle atrophy and weakness may be a primary symptom caused by the effects of CFTR gene mutations on the muscle itself. |
| Opening A New Window On Daylight, While Reducing Electricity Consumption Posted: 01 Aug 2009 02:00 PM PDT A new approach to windows could let in more light and cut indoor lighting needs by up to 99 percent in buildings in Tropical regions without losing the cooling effect of shades. |
| Invisible Ink? What Rorschach Tests Really Tell Us Posted: 01 Aug 2009 02:00 PM PDT One of the most well-known psychological tools is the Rorschach Inkblot Test. A viewer looks at ten inkblots, one at a time, and describes what they see. However, does the inkblot really reveal all? According to a new article, the Rorschach may not be the best diagnostic tool and practitioners need to be cautious in how they use this technique and interpret their results. |
| Extraterrestrial Platinum Was 'Stirred' Into Earth Posted: 01 Aug 2009 08:00 AM PDT A research program aimed at using platinum as an exploration guide for nickel has for the first time been able to put a time scale on the planet's large-scale convection processes. |
| Virus Linked To Some Cases Of Common Skin Cancer Posted: 01 Aug 2009 08:00 AM PDT A virus discovered in a rare form of skin cancer has been found in people with squamous cell carcinoma, a common skin cancer. Researchers identified the virus in more than a third of 58 SCC patients and in 15 percent of their tumors. Virus found in tumor cells had a mutation that could enable it to integrate into the host cell DNA, suggesting that the virus might help cause some cases of SCC. |
| Food Additive May One Day Help Control Blood Lipids And Reduce Disease Risk Posted: 01 Aug 2009 08:00 AM PDT Scientists have identified a substance in the liver that helps process fat and glucose. That substance is a component of the common food additive lecithin, and researchers speculate it may one day be possible to use lecithin products to control blood lipids and reduce risk for diabetes, hypertension or cardiovascular disease using treatments delivered in food rather than medication. |
| Experimental Treatment Halts Hypoxic-ischemic Brain Injury In Newborns, Study Suggests Posted: 01 Aug 2009 08:00 AM PDT Inhibiting an enzyme in the brains of newborns suffering from oxygen and blood flow deprivation stops brain damage that is a leading cause of cerebral palsy, mental retardation and death, according to researchers. The scientists show blocking the brain enzyme, tissue-type plasminogen activator, in newborn rats prevented progressive brain damage triggered by the lack of oxygen and blood supply. |
| Bacteria Pack Their Own Demise Posted: 01 Aug 2009 08:00 AM PDT Numerous pathogens contain an 'internal time bomb', a deadly mechanism that can be used against them. Scientists were able to determine the structure and operating mechanism of the proteins involved. This clears the road for finding ways to set the clock on this internal time bomb and, hopefully, in the process developing a new class of antibiotics. |
| Americans Spent $33.9 Billion Out-of-pocket On Complementary And Alternative Medicine In One Year Posted: 01 Aug 2009 08:00 AM PDT Americans spent $33.9 billion out-of-pocket on complementary and alternative medicine (CAM) over the previous 12 months, according to a 2007 government survey. CAM is a group of diverse medical and health-care systems, practices, and products such as herbal supplements, meditation, chiropractic and acupuncture that are not generally considered to be part of conventional medicine. |
| Eating High Levels Of Fructose Impairs Memory In Rats Posted: 01 Aug 2009 02:00 AM PDT Researchers have found that diets high in fructose -- a type of sugar found in most processed foods and beverages -- impaired the spatial memory of adult rats. |
| New Location Found For Regulation Of RNA Fate Posted: 01 Aug 2009 02:00 AM PDT Thousands of scientists and hundreds of software programmers studying the process by which RNA inside cells normally degrades may soon broaden their focus significantly. Researchers have discovered that the RNA degradation, which, when improperly regulated can lead to cancer and other diseases, can be launched in an unexpected location. |
| Energetic Bottleneck Factors In Catastrophic Winter Seabird Losses Posted: 01 Aug 2009 02:00 AM PDT Every winter, thousands of seabirds are washed up on shore having perished in unexplained "winter wrecks." To find out why so many seabirds die, researchers calculated the energy requirements of auks and Brünnich's guillemots and found that the birds may not be able to eat enough to survive the North Atlantic's harsh winter conditions. |
| Breast Cancer Hormone Receptor Status And Risk Of A Second Primary Tumor Posted: 01 Aug 2009 02:00 AM PDT Women with hormone receptor negative first tumors have twice as much risk for developing a second breast cancer as women with HR-positive tumors, according to a new study. |
| Posted: 01 Aug 2009 02:00 AM PDT With a sustained national commitment, the United States could obtain substantial energy-efficiency improvements, new sources of energy, and reductions in greenhouse gas emissions through the accelerated deployment of existing and emerging energy technologies. |
| Scientists Announce Mass Participation Experiment To Cheer-up The UK Posted: 01 Aug 2009 02:00 AM PDT British psychologists are inviting the public to take part in an ambitious five-day experiment that aims to boost the UK's happiness. |
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