ScienceDaily: Latest Science News |
| The Day The Universe Froze: New Model For Dark Energy Posted: 11 May 2009 11:00 AM PDT Imagine a time when the entire universe froze. According to a new model for dark energy, that is essentially what happened about 11.5 billion years ago, when the universe was a quarter of the size it is today. |
| New Gene May Provide Breast Cancer Diagnostic Marker Posted: 11 May 2009 11:00 AM PDT Scientists describe a new gene called DEAR1 that is genetically altered by mutation and deletion in breast tumors, and that may provide a new breast cancer prognostic marker. |
| Sexually Transmitted Infections: Transistors Used To Detect Fungus Candida Albicans Posted: 11 May 2009 11:00 AM PDT Scientists have developed a biosensor that makes it possible to detect small quantities of the fungus Candida albicans, the cause of common sexually-transmitted infections, within just an hour. The technique involves the use of transistors, which incorporate specific antibodies able to recognize yeast, and carbon nanotubes to generate a measurable electrical signal. |
| Why Females Do Not Fare As Well As Men In Undergoing Angioplasty For Heart Attacks Posted: 11 May 2009 11:00 AM PDT Age, condition and treatment delay are among the reasons women who undergo angioplasty for heart attack often do not fare as well as do men, according to two new studies. |
| US-Canadian Shale Could Neutralize Russian Energy Threat To Europeans Posted: 11 May 2009 11:00 AM PDT Rising shale gas production in the United States and Canada as well as potential natural gas supplies from Iraq could be pivotal in curbing Russia's ability to organize an "energy weapon" against European consumers, according to a new study. |
| Genetic Make-up Influences Biased Economic Decision-making, Study Shows Posted: 11 May 2009 11:00 AM PDT How would you respond if you were told that you had an 80 percent chance of surviving an operation -- would you give consent? How about if you were told you had a 20 percent chance of dying? The answer may partly depend on your genetic make-up, according to new research. |
| Faster Computers, Electronic Devices Possible After Scientists Create Large-area Graphene On Copper Posted: 11 May 2009 08:00 AM PDT The creation of large-area graphene using copper may enable the manufacture of new graphene-based devices that meet the scaling requirements of the semiconductor industry, leading to faster computers and electronics. |
| Protein-protein Interaction Explains Vision Loss In Genetic Diseases Posted: 11 May 2009 08:00 AM PDT Scientists can now provide not only an explanation for the variations of vision loss in people with a host of disorders associated with defective cilia within the cells, but also a blueprint for unraveling similar variations in signs among people with other genetic diseases. |
| Microscope Capable Of Live Imaging At Double The Resolution Of Fluorescence Microscopy Developed Posted: 11 May 2009 08:00 AM PDT Engineers have developed a microscope that is capable of live imaging at double the resolution of fluorescence microscopy using structured illumination. |
| How Deadly Pediatric Disorder Develops In Brain: Link To Alzheimer's Could Lead To First Treatment Posted: 11 May 2009 08:00 AM PDT A deadly brain disorder in toddlers may find its first treatment in drugs for Alzheimer's disease. Scientists have discovered how a form of the rare genetic disease known as Sanfilippo syndrome develops in the young brain, causing severe mental retardation and death as early as age 14. Published this week in the early online edition of Proceedings of the National Academy of Sciences, the findings suggest that new Alzheimer's drugs may provide therapy for the currently untreatable metabolic disorder. |
| New Computer Program Promises To Be 'Rosetta Stone' For Chemical Names Posted: 11 May 2009 08:00 AM PDT In an advance that will help speed global development of new drugs and patenting of new commercial and industrial products, a scientist in New Mexico is reporting development of the first computer program that can quickly and accurately translate complex chemical names from one language into another. |
| Communal Stomach Of An Ant Colony Posted: 11 May 2009 05:00 AM PDT How do ant colonies manage the nutrients in their food? Biologists have shown that an ant colony functions like a "collective mouth and gut". The members of a colony are capable of dealing with the nutritional needs of their social structure by sharing tasks (foraging, digestion and excretion). |
| Major New Treatment Target In Diseased Arteries Posted: 11 May 2009 05:00 AM PDT Removing a single protein prevents early damage in blood vessels from triggering a later-stage, frequently lethal complication of atherosclerosis, according to new research. |
| Unique Survey Of Ocean Climate May Improve Climate Predictions Posted: 11 May 2009 05:00 AM PDT A unique assessment of ocean circulation and climate variability may add to the basis for improved climate prediction. |
| Chronic Ankle Pain May Be More Than Just A Sprain Posted: 11 May 2009 05:00 AM PDT Ankle sprains are a common injury after a fall, sudden twist or blow to the ankle joint. New information indicates tendon injuries may be the culprit. |
| Posted: 11 May 2009 05:00 AM PDT China has made significant progress in cybercrime legislation but faces increasing challenges to keep pace with the country's exponential growth in internet use, according to a new report. |
| Will The Economic Crisis Lead To Major Societal Changes? Posted: 11 May 2009 05:00 AM PDT Will poverty lead to major societal changes? A new theory of social change and human development offers insights into the future. |
| African Tea Offers Promising Treatment For Type-2 Diabetes Posted: 11 May 2009 02:00 AM PDT Researchers are attempting, with the help of a special African tea, to develop a new treatment for type-2 diabetics. The tea is used as a treatment in traditional Nigerian medicine and is produced from the extract of Rauvolfia Vomitoria leaves and the fruit of Citrus aurantium. The scientists have recently tested the tea on patients with type-2 diabetes and the results are promising. |
| Gene Responsible For Acetaminophen-induced Liver Injury Identified Posted: 11 May 2009 02:00 AM PDT Acetaminophen (Tylenol and generics) is one of the most commonly used over-the-counter drugs in the United States. While generally safe, acetaminophen is known to cause severe liver injury if taken in high doses. Scientists have now found a genetic marker linked to the risk of acetaminophen-induced liver injury, using a strategy that will help develop safer drugs in the future. |
| Posted: 11 May 2009 02:00 AM PDT A student is bringing understanding to the troubling problem of ocean acidification due to increasing atmospheric carbon dioxide. Researchers have examined how mussels have adapted to extremely acidic waters near underwater volcanoes. |
| New Target Identified For Potential Treatment Of Retinopathy In Premature Babies Posted: 11 May 2009 02:00 AM PDT A new study strongly suggest that the protein kinase JNK1 plays a key role in the development of retinopathy in premature infants. |
| Integrated Pest Management Reduces Cockroaches And Allergens In Schools Posted: 11 May 2009 02:00 AM PDT Using integrated pest management to control cockroaches is more effective at reducing cockroaches and their allergens than conventional methods which do not use IPM, according to a new study. |
| Posted: 11 May 2009 02:00 AM PDT Scientists have found that the U.S. wildlife import system is broken. In a new study, the team reported that federal authorities failed to accurately list more than four in five species entering the country. The effect: A range of diseases is introduced into the United States, potentially decimating species, devastating ecosystems and threatening food supply chains and human health. |
| New Species Thrives In Extremely High Temperature And Pressure Posted: 10 May 2009 11:00 PM PDT A new species of archaebacteria thriving within a temperature range of 80 to 105°C and able to divide itself up to a hydrostatic pressure of 120 Mpa (1000 times higher than the atmospheric pression), has just been discovered. |
| Hot Flashes Linked To Lower Bone Density In Women Posted: 10 May 2009 11:00 PM PDT Women with vasomotor symptoms, which include hot flashes and night sweats, had lower bone density than those without VMS. |
| Biofuel Production And Water Scarcity: A Drink-Or-Drive Issue? Posted: 10 May 2009 11:00 PM PDT Federal requirements to increase the production of ethanol has developed into a "drink-or-drive issue" in the Midwest as a result of biofuel production's impact on water supplies and water quality, says an environmental engineering researcher. |
| Sleep Apnea Thickens Blood Vessels, Increases Heart Disease Risk Posted: 10 May 2009 11:00 PM PDT Obstructive sleep apnea thickens sufferers' blood vessels and increases the risk of several forms of heart and vascular diseases. Researchers have identified the enzyme NADPH oxidase as important for the effects obstructive sleep apnea has on blood vessels in the lung. |
| Chemists Develop New Preparation Process For Metal-organic Frameworks Posted: 10 May 2009 11:00 PM PDT Many molecular materials, be they hydrogen for fuel cells or drugs, can be stored in metal-organic frameworks (MOFs). This would even be possible for metal nano particles for catalysis, were there not one little hindrance: if the void spaces in the MOF are too large, a second embedded framework system automatically develops during the synthesis process. Scientists can now grow it layer-by-layer on an "intelligent" organic surface. This enables the formation of voids that are large enough for metal particles. |
| Children's Activity Levels Not Influenced By More Physical Education Time In School, Study Finds Posted: 10 May 2009 11:00 PM PDT Scheduling more physical education time in schools does not mean children will increase their activity levels, suggests new research that discovered those who got lots of timetabled exercise at school compensated by doing less at home while those who got little at school made up for it by being more active at home. |
| New High Blood Pressure Genes Identified Posted: 10 May 2009 08:00 PM PDT Scientists have identified common genetic changes associated with blood pressure and hypertension. The study breaks new ground in understanding blood pressure regulation and may lead to advances in hypertension therapy. |
| Small Molecules Might Block Mutant Protein Production In Huntington's Disease Posted: 10 May 2009 08:00 PM PDT Molecules that selectively interfere with protein production can stop human cells from making the abnormal molecules that cause Huntington's disease. |
| Why Female Birds Seek Extra Mates: Study Of Blue Tits Fuels Debate Posted: 10 May 2009 08:00 PM PDT When female birds mate with males other than their social partners and have broods of mixed paternity, the offspring sired by these "extra-pair" fathers may often get a head start in life, according to a new study on blue tits. The discovery adds fuel to the debate about why some female birds seek those extra mates in the first place. |
| Calorie Restriction Causes Temporal Changes In Liver Metabolism Posted: 10 May 2009 08:00 PM PDT Moderate calorie restriction causes temporal changes in the liver and skeletal muscle metabolism, whereas moderate weight loss affects muscle. In addition, researchers found that short-term calorie restriction with a low-carbohydrate diet caused a greater change in liver fat content and metabolic function than short-term CR with a high-carbohydrate diet. |
| Decreasing Deer Damage To Trees, Shrubs And Crops Posted: 10 May 2009 08:00 PM PDT The non-timber forest products industry has been growing rapidly since the mid-1980s. However, the industry faces a challenge from wildlife that naturally inhabit forests where NTFPs grow. Of particular concern are white-tailed deer, which can reduce the quality, quantity, and profitability of NTFPs. Researchers attempting to provide solutions to deer damage are working to identify species of trees and shrubs that are not as attractive or even avoided by deer. |
| Infants' Pain Response To Immunization Varies Based On Which Vaccine Is First Posted: 10 May 2009 08:00 PM PDT Infants who receive the pneumococcal conjugate vaccine following the combination vaccine for diphtheria, polio, tetanus, pertussis and Haemophilus influenzae type b appear to experience less pain than those who are immunized in the opposite order, according to a new article. |
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