ScienceDaily: Latest Science News |
| Physicists Create World's Smallest Incandescent Lamp Posted: 07 May 2009 08:00 AM PDT Physicists have created the world's smallest incandescent lamp using a filament made from a single carbon nanotube only 100 atoms wide. Invisible to the untrained eye, the filament appears as a tiny point of light when the lamp is turned on. Even with the best optical microscope it is only just possible to resolve the nanotube's nonzero length. The team uses an electron microscope capable of atomic resolution to image the filament's true structure. |
| Swine Flu Genes Dissimilar To Past Pandemics Posted: 07 May 2009 08:00 AM PDT Some genetic markers of influenza infection severity have been identified from past outbreaks. Researchers have failed to find most of these markers in samples of the current swine-flu strain. |
| Gel-Based Glue Fastens Snails To Wet Surfaces, Model For Surgical Adhesive Posted: 07 May 2009 08:00 AM PDT A species of slug produces a defensive gel it can chemically convert into a remarkably strong glue. Similar gel-based glues attach some snails firmly onto slippery rocks; tools are needed to pry them off. The tenacity of these glues on wet surfaces is difficult to match with artificial adhesives. |
| Where Tumor Cells Boldly Go: Cancer Biologists Shed Light On The Metastatic Niche Posted: 07 May 2009 08:00 AM PDT A team of cancer researchers is focusing on a new model of the disease: the permissive microenvironment, or the metastatic niche, that forms in particular tissues located far from the primary tumor, well before full metastasis takes hold. |
| Lunar Reconnaissance Orbiter To Help Astronauts Survive On Moon's Forbidding Frontier Posted: 07 May 2009 08:00 AM PDT NASA will send a robotic scout, called the Lunar Reconnaissance Orbiter (LRO), to orbit the moon in 2009. LRO will gather crucial data on the lunar environment that will help astronauts prepare for long-duration lunar expeditions. |
| Teach Your Children Well: Focused, Happier Kids Grow Up To Be Healthier Adults, Study Finds Posted: 07 May 2009 08:00 AM PDT Children who can stay focused and don't sweat the small stuff have a better shot at good health in adulthood -- and this is especially true for girls, according to a new study. |
| Posted: 07 May 2009 05:00 AM PDT Scientists have now pinpointed the exact gene responsible for a 2007 breakthrough in which mice with symptoms of Alzheimer's disease regained long-term memories and the ability to learn. |
| Genes Found To Play Role In Breast Cancer's Spread To Brain Posted: 07 May 2009 05:00 AM PDT Scientists have identified three genes that specifically mediate the metastasis, or spread, of breast cancer to the brain and illuminates the mechanisms by which this spread occurs. |
| Sea Salt Holds Clues To Climate Change Posted: 07 May 2009 05:00 AM PDT What is climate change doing to the saltiness, or salinity, of our oceans? This is an important question because big shifts in salinity could be a warning that more severe droughts and floods are on their way, or even that global warming is speeding up. Now, new research suggests that the amount of salt in seawater is varying in direct response to man-made climate change. |
| Cancer-causing Virus Associated With Higher Risk Of New HIV Infection Posted: 07 May 2009 05:00 AM PDT Infection with anal human papillomavirus, a virus that can cause anal and cervical cancers, is associated with a higher risk of new HIV infection in previously HIV-negative men who have sex with men, according to new research. |
| 'Stinky' Drywall Imported From China Raises Health And Safety Concerns Posted: 07 May 2009 05:00 AM PDT Homeowners throughout the United States are complaining of stinky odors, copper pipe and wire corrosion, and respiratory problems in an ongoing crisis that officials say is linked to drywall imported from China. |
| Listening To Music Can Change The Way You Judge Facial Emotions Posted: 07 May 2009 05:00 AM PDT It is possible to influence emotional evaluation of visual stimuli by listening to musical excerpts before the evaluation. |
| Scientists Shed Light On Inner Workings Of Human Embryonic Stem Cells Posted: 07 May 2009 02:00 AM PDT Scientists have made a significant discovery in understanding the way human embryonic stem cells function. They explain nature's way of controlling whether these cells will renew, or will transform to become part of an ear, a liver, or any other part of the human body. |
| Nanotechnology Holds Promise For STD Drug Delivery Posted: 07 May 2009 02:00 AM PDT Researchers have made a breakthrough in safe and effective administration of potential antiviral drugs -- small interfering RNA (siRNA) molecules that silence genes -- the first step in development of a new kind of treatment for sexually transmitted diseases (STDs). |
| Unique Roman Glass Dish Discovered At London Grave Posted: 07 May 2009 02:00 AM PDT Archeologists have discovered an exquisite Roman polychrome millefiori dish in East London, U.K. The dish is made up of hundreds of indented glass petals (the term millefiori means simply "a thousand flowers") in an intricate repeated pattern. It was highly fragmented but miraculously held together by nothing more than the earth around it. |
| Glutamate Identified As Predictor Of Disease Progression In Multiple Sclerosis Posted: 07 May 2009 02:00 AM PDT Researchers have identified a correlation between higher levels of glutamate, which occurs naturally in the brain as a byproduct of metabolism, and greater disease burden in multiple sclerosis patients. The study is the first to measure glutamate toxicity in the brain over time and suggests an improved method for tracking the disease and predicting its course. |
| First Fully Automated Pipeline For Multiprotein Complex Production Posted: 07 May 2009 02:00 AM PDT Most cellular processes are carried out by molecular machines that consist of many interacting proteins. These protein complexes lie at the heart of life science research, but they are notoriously hard to study. A new technology to produce multiprotein complexes now makes the biologist's life easier. |
| Women Live Longer, Not Better, Largely Because Of Obesity And Arthritis Posted: 07 May 2009 02:00 AM PDT Obesity and arthritis that take root during early and middle age significantly contribute to women's decreased quality of life during their senior years, according to researchers. |
| Way To Control Chaos? Rigid Structure Discovered In Center Of Air Turbulence Posted: 06 May 2009 11:00 PM PDT Pioneering mathematical engineers have discovered for the first time a rigid structure which exists within the center of turbulence, leading to hope that its chaotic movement could be controlled in the future. Everyone from Formula One drivers experiencing drag, through to airplane passengers suffering a bumpy flight, will have experienced clear-air turbulence, the mixing of high- and low-speed air in the atmosphere. |
| Cancer-obesity Link Could Aid Prevention Efforts Posted: 06 May 2009 11:00 PM PDT A new link between body fat and cancer underscores obesity's health risk and could lead to new cancer treatment and prevention strategies. Scientists identified the connection between obesity and colon cancer, the third-leading killer of Americans, in part by examining tissue hormones. |
| Organic Dairy Manure May Offer High Quality Fertilizer Option Posted: 06 May 2009 11:00 PM PDT Dairy cows that produce USDA-certified organic milk also produce manure that may gradually replenish soil nutrients and potentially reduce the flow of agricultural pollutants to nearby water sources, according to new findings. |
| Drugs To Combat Anemia In Cancer Patients Increase Risk Of Death, Study Suggests Posted: 06 May 2009 11:00 PM PDT The use of drugs to encourage red blood cell formation (erythropoiesis-stimulating agents) in cancer patients with anemia increases the risk of death and serious adverse events such as blood clots, found a new study. |
| Posted: 06 May 2009 11:00 PM PDT After analysing different points of the process of the transformation of grape juice to wine, researchers concluded that the type of container (wooden cask or steel tank) employed notably influences the fermentative aroma of Chardonnay wine, and that oak cask-fermented wines have, in general, a greater concentration of superior alcohols and esters of medium-sized chains of fatty acids. |
| Lessons From Schon -- The Worst Physics Fraudster? Posted: 06 May 2009 11:00 PM PDT How did a 31-year-old physicist working at Bell Labs in New Jersey, US, get away with possibly the worst case of physics research fraud known? From claims to have made the world's first organic electrical laser to the fictional construction of the smallest ever transistor, the repercussions of Jan Hendrik Schon's fraud are still felt today, seven years after he was found guilty of scientific misconduct and fired by his employer. |
| Schizophrenia: Blocking Errant Protein Could Stem Runaway Brain Activity In Psychosis Posted: 06 May 2009 08:00 PM PDT A study on schizophrenia has implicated machinery that maintains the flow of potassium in cells and revealed a potential molecular target for new treatments. Expression of a previously unknown form of a key potassium channel was found to be 2.5 fold higher than normal in the brain memory hub of people with the chronic mental illness and a hotspot of genetic variation. |
| Can Kidney Disease Cause Cancer? Posted: 06 May 2009 08:00 PM PDT Moderate kidney disease increases an older man's risk of developing certain cancers, according to a new study. Given that chronic kidney disease affects about a third of older men, maintaining kidney function could help prevent cancer in the general population. |
| 'Diving Beetle' Named After Comedy Central's Stephen Colbert Posted: 06 May 2009 08:00 PM PDT Agaporomorphus colberti, a diving beetle from Venezuela, was named by entomologists to honor Stephen Colbert, the satirical host and executive producer of Comedy Central's "The Colbert Report." |
| Building The Lymphatic Drainage System Posted: 06 May 2009 08:00 PM PDT Our bodies' tissues need continuous irrigation and drainage. Blood vessels feeding the tissues bring in the fluids, and drainage occurs via the lymphatic system. While much is known about how blood vessels are built, the same was not true for lymph vessels. Now though, scientists have identified two of the lead engineers that direct drainage construction in the mouse embryo. |
| Carbon Balance Of Terrestrial Ecosystems In China Posted: 06 May 2009 08:00 PM PDT During the 1980s and 1990s, China showed a net carbon sink of 0.19–0.26 Pg carbon (PgC), which is smaller than that in the conterminous United States but comparable to that in geographic Europe. Northeast China is a net source of CO2 to the atmosphere owing to over-harvesting and degradation of forests. By contrast, southern China accounts for more than 65 per cent of the carbon sink, which can be attributed to regional climate change, large-scale plantation programs and shrub recovery. |
| Maternal Depression Is Associated With Significant Sleep Disturbance In Infants Posted: 06 May 2009 08:00 PM PDT Babies born to mothers with depression are more likely to suffer from significant sleep disturbances at 2 weeks postpartum that continue until 6 months of age. Findings of the study are of particular importance, as sleep disturbances in infancy may result in increased risk for developing early-onset depression in childhood. |
| Star Crust 10 Billion Times Stronger Than Steel, Physicist Finds Posted: 06 May 2009 05:00 PM PDT Research by a theoretical physicist shows that the crusts of neutron stars are 10 billion times stronger than steel or any other of the earth's strongest metal alloys. |
| Chlamydia May Play Role In A Type Of Arthritis Posted: 06 May 2009 05:00 PM PDT Spondylarthritis represents a group of arthritidies that share clinical features such as inflammatory back pain and inflammation at sites where tendons attach to bone. |
| For Your Health, Pick A Mate Who Is Conscientious And, Perhaps, Also Neurotic Posted: 06 May 2009 05:00 PM PDT Conscientiousness is a good thing in a mate, researchers report, not just because it's easier to live with someone who washes the dishes without being asked, but also because having a conscientious partner may actually be good for one's health. Their study, of adults over age 50, also found that women, but not men, get an added health benefit when paired with someone who is conscientious and neurotic. |
| Potential Lung Disease Biomarkers Yield Clues To COX-2 Inhibitor Side Effects Posted: 06 May 2009 05:00 PM PDT In searching for a simple way to identify individuals with smoking-related lung injury, scientists at have stumbled upon a potential explanation for why the class of pain-relievers known as COX-2 inhibitors increases the risk of heart problems among users. |
| Whole Genome Sequencing Approach For Mutation Discovery Posted: 06 May 2009 05:00 PM PDT Scientists have developed a "whole-genome sequencing approach" to mapping mutations in fruit flies. The novel methodology promises to reduce the time and effort required to identify mutations of biological interest. |
| Swine Flu: Who Is Afraid Of It? Posted: 06 May 2009 05:00 PM PDT The new influenza A (H1N1), known as the swine flu, demonstrates the power of people's perceptions of risk. Sales of face masks are breaking all records not only in Mexico but also in other countries such as Sweden. Hotel guests are being isolated at a hotel in Hong Kong, and people with the sniffles are being isolated in airports around the world. But before the outbreak of the flu, this was a risk that extremely few Swedes perceived as a serious threat to themselves. |
| 'Hobbits' Couldn't Hustle: Feet Of Homo Floresiensis Were Primitive But Not Pathological Posted: 06 May 2009 02:00 PM PDT Homo floresiensis feet may help settle a hotly debated question among paleontologists: was this population similar to modern humans, or not? A new research analysis demonstrates that although "hobbits" were bipedal, several features of their feet (such as flat feet) were primitive but not pathological. Furthermore, their gait was not efficient, and the population probably found long term running difficult. |
| Flu Pandemic Drugs: Using Small Stockpile Of Secondary Antiviral Drugs Could Extend Effectiveness Posted: 06 May 2009 02:00 PM PDT In a global influenza pandemic, small stockpiles of a secondary flu medication -- if used early in local outbreaks -- could extend the effectiveness of primary drug stockpiles, according to new research. |
| Mites On Hissing Cockroach May Benefit Humans With Allergies Posted: 06 May 2009 02:00 PM PDT Tiny mites living on the surface of Madagascar hissing cockroaches help decrease the presence of a variety of molds on the cockroaches' bodies, potentially reducing allergic responses among humans who handle the popular insects, according to new research. Scientists cultured and identified fungi on the cockroaches' body surfaces with and without mites and discovered that the presence of these mites reduced the molds by at least 50 percent. |
| Ventilators Biggest Risk Factor For Pneumonia After Heart Surgery, Study Finds Posted: 06 May 2009 02:00 PM PDT Ventilator-associated pneumonia is the main cause of nosocomial infection in patients undergoing major heart surgery. An international study of 25 hospitals from 8 European countries has confirmed the degree of danger posed by VAP and identified the main risk factors. |
| Neural Networks Used To Improve Wind Speed Forecasting Posted: 06 May 2009 02:00 PM PDT Scientists have invented a new method for predicting the wind speed of wind farm aerogenerators. The system is based on combining the use of weather forecasting models and artificial neural networks and enables researchers to calculate the energy that wind farms will produce two days in advance. |
| Decrease In Sense Of Smell Seen In Lupus Patients Posted: 06 May 2009 02:00 PM PDT The sense of smell is a complex process of the central nervous system that involves specific areas of the brain. In fact, olfactory dysfunction is seen in various central nervous system disorders that involve immune-mediated mechanisms, such as Parkinson's disease, schizophrenia, Alzheimer's disease and multiple sclerosis. |
| You are subscribed to email updates from ScienceDaily: Latest Science News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
Inbox too full?  Subscribe to the feed version of ScienceDaily: Latest Science News in a feed reader. | |
| If you prefer to unsubscribe via postal mail, write to: ScienceDaily: Latest Science News, c/o Google, 20 W Kinzie, Chicago IL USA 60610 | |
No comments:
Post a Comment