|  Mindfulness training can help reduce teacher stress and burnout  | Teachers who practice "mindfulness" are better able to reduce their own levels of stress and prevent burnout, according to a new study. | Read More » How anthrax toxins cause illness, death  | Researchers have identified the cells in two distinct areas of the body that are simultaneously targeted for damage by anthrax toxins, eventually causing illness and sometimes death. Their findings are based on testing in mice. However, the results may contribute to the development of anthrax treatments for humans, the researchers say. | Read More » Brain inflammation linked to more severe Parkinson's symptoms  | Reversing inflammation in the fluid surrounding the brain's cortex may provide a solution to the complex riddle of Parkinson's, according to researchers who have found a link between pro-inflammatory biomarkers and the severity of symptoms such as fatigue, depression and anxiety in patients with the chronic disease. | Read More » Model of 'near-optimal' genetic code developed  | Researchers have created a model that may explain the complexities of the origins of life. Their work offers new insights into how RNA signaling likely developed into the modern "genetic code." | Read More » Researchers aim to use light -- not electric jolts -- to restore healthy heartbeats  | When a beating heart slips into an irregular rhythm, the treatment is electric current from a pacemaker or defibrillator. But the electricity itself can cause pain, tissue damage and other side effects. Now, researchers want to replace jolts with a gentler remedy: light. | Read More » Scientists 'spike' stem cells to generate myelin  | Stem cell technology has long offered the hope of regenerating tissue to repair broken or damaged neural tissue. | Read More » Woodland salamanders indicators of forest ecosystem recovery  | Woodland salamanders are a viable indicator of forest ecosystem recovery, according to researchers, | Read More » A major cause of age-related memory loss identified: Potentially reversible  | Scientists have found that the deficiency of a protein called RbAp48 in the hippocampus is a significant contributor to age-related memory loss and that this form of memory loss is reversible. The study, conducted in postmortem human brain cells and in mice, also offers the strongest causal evidence that age-related memory loss and Alzheimer's disease are distinct conditions. | Read More » The science of collaboration  | The future of biomedical innovation depends in part on a new trend for all players in biomedical innovation to work together for the common goal, say researchers. | Read More » Blocking molecular pathway reverses pulmonary hypertension in rats  | Pulmonary hypertension, a deadly form of high blood pressure that develops in the lungs, may be caused by an inflammation-producing molecular pathway that damages the inner lining of blood vessels, according to a new study. | Read More » Spread of farming and origin of lactase persistence in Neolithic Age  | Scientists have brought to light the spread of dairy farming in Europe and the development of milk tolerance in adult humans. It was after the transition from a hunter-gatherer society to that of a settled farming culture in the Neolithic period that dairy-related animal husbandry first evolved, and this practice spread from the Middle East to all of Europe. The processing of milk to make cheese and yogurt contributed significantly to the development of dairy farming, as this represented a way of reducing the lactose content of fresh milk to tolerable levels, making a valuable foodstuff available to the human population. | Read More » Milky Way gas cloud causes multiple images of distant quasar  | For the first time, astronomers have seen the image of a distant quasar split into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as 1970, but the first evidence for one now has come from the National Science Foundation's Very Long Baseline Array (VLBA) radio telescope system. | Read More » Wildfires projected to worsen with climate change  | Environmental scientists brings bad news to the western United States, where firefighters are currently battling dozens of fires in at least 11 states. | Read More » Oxygen 'sponge' presents path to better catalysts, energy materials  | Scientists have developed a new oxygen "sponge" that can easily absorb or shed oxygen atoms at low temperatures. Materials with these novel characteristics would be useful in devices such as rechargeable batteries, sensors, gas converters and fuel cells. | Read More » School-age drinking increases breast cancer risk  | Here's a sobering fact for millions of young women heading back to school: The more alcohol they drink before motherhood, the greater their risk of future breast cancer. | Read More » Promising chronic pain drug developed  | A recent report indicates that 116-million Americans live with some form of chronic pain. Historically, chemists have developed drugs aimed at just one biological target. Two drugs used together may metabolize differently or present other issues. This new drug, named UMB 425 affects two different opioid receptors, providing diminished tolerance. | Read More » Migraine may permanently change brain structure  | Migraine may have long-lasting effects on the brain's structure, according to a new study. | Read More » Does migraine affect income or income affect migraine?  | Studies show that migraine is more common among people with lower incomes. This relationship is examined in a study looking at whether developing migraines limits people's educational and career achievements, leading to a lower income status, or whether problems related to low income such as stressful life events and poor access to health care increase the likelihood of developing migraines. | Read More » Personal goals may facilitate or hinder older adults' striving for exercise  | Although exercise may significantly promote healthy aging, many older adults remain sedentary. One reason for this may lie behind older adults' personal goals. | Read More » Hidden shell middens reveal ancient human presence in Bolivian Amazon  | Previously unknown archeological sites in forest islands reveal human presence in the western Amazon as early as 10,000 years ago, according to new research. | Read More » Space laser to prove increased broadband possible  | Scientists are attemping to show two-way laser communication beyond Earth is possible, expanding the possibility of transmitting huge amounts of data. This new ability could one day allow for 3-D high definition video transmissions in deep space to become routine. | Read More » NASA's SDO mission untangles motion inside the sun  | Using an instrument on NASA's Solar Dynamics Observatory, called the Helioseismic and Magnetic Imager, or HMI, scientists have overturned previous notions of how the sun's writhing insides move from equator to pole and back again, a key part of understanding how the dynamo works. Modeling this system also lies at the heart of improving predictions of the intensity of the next solar cycle. | Read More » Wake up and smell the reef: Fish larvae sniff their way back home  | A new study conducted at One Tree Island in the Great Barrier Reef has established that reef fish larvae can smell the presence of coral reefs from as far as several kilometers offshore, and use this odor to find home. | Read More » Kids' fast food ads emphasize giveaways more than food  | Fast-food marketing aimed at children emphasizes giveaways and movie tie-ins much more frequently than ads targeted at adults, according to new research. | Read More » Fifteen new species of Amazonian birds  | Biologists have recently discovered 15 species of birds previously unknown to science. Not since 1871 have so many new species of birds been introduced under a single cover. | Read More » Molecular motors: Power much less than expected?  | An innovative measurement method has been used for estimating power generated by motors of single molecule in size, comprising a few dozens atoms only. The findings of the study are of crucial importance for construction of future nanometer machines – and they do not instil optimism. | Read More » 'Mini human brains' created: Scientists grow human brain tissue in 3-D culture system  | Complex human brain tissue has been successfully developed in a three-dimensional culture system. The method allows pluripotent stem cells to develop into cerebral organoids -- or "mini brains" -- that consist of several discrete brain regions. | Read More » Echolocation for humans: Playing it by ear  | Biologists have demonstrated that people can acquire the capacity for echolocation, although it does take time and work. | Read More » Men feel worse about themselves when female partners succeed  | Deep down, men may not bask in the glory of their successful wives or girlfriends. While this is not true of women, men's subconscious self-esteem may be bruised when their spouse or girlfriend excels, says a new study. | Read More » Where can coral reefs relocate to escape the heat?  | The best real estate for coral reefs over the coming decades will no longer be around the equator but in the sub-tropics, new research suggests. | Read More » Ozone depletion linked to extreme precipitation in austral summer  | The new study showed that the ozone depletion over the South Pole has affected the extreme daily precipitation in the austral summer, for Dec., Jan., and Feb. | Read More » Your spouse's voice is easier to hear -- and easier to ignore  | With so many other competing voices, having a conversation on a bustling subway or at a crowded cocktail party takes a great deal of concentration. New research suggests that the familiar voice of a spouse stands out against other voices, helping to sharpen auditory perception and making it easier to focus on one voice at a time. | Read More » Human heart disease recently found in chimpanzees  | While in the past century there have been several documented examples of young, healthy athletes who have died suddenly of heart disease during competitive sporting events, a new study finds that this problem also extends to chimpanzees. Arrhythmogenic Right Ventricular Cardiomyopathy, a human heart disease that causes sudden cardiac death in teenagers and young adults (particularly healthy athletes), has now been identified in chimpanzees. | Read More » New sensor is almost as sensitive as a dog's nose  | Using carbon nanotubes, scientists have developed a sensor that greatly amplifies the sensitivity of commonly used but typically weak vibrational spectroscopic methods, such as Raman spectroscopy. This type of sensor makes it possible to detect molecules present in the tiniest of concentrations. | Read More » Why electrons pass through very tiny wires less smoothly than expected: Light shed on 20-year-old mystery  | Scientists have found an explanation for a mystery that has been puzzling the physics community since 1995. They explain why electrons pass through very tiny wires (known as quantum point contacts) less smoothly than expected. The observations will affect electronics on a nanoscale: 'Our thinking about this has been too naïve so far.' | Read More » Recipe for Britain's first chilled chocolate treats discovered  | The first English recipes for iced chocolate desserts, nearly 350 years old, have been uncovered – just in time for the last of the summery weather. | Read More » Why smokers gain weight when they quit smoking: Changes in intestinal flora  | Most smokers put on a couple of kilos when they quit smoking. This is not due to an increased calorie intake, but to a change in the composition of the intestinal flora after quitting smoking, as a study suggests. | Read More » Neutron stars in the computer cloud  | Einstein@Home discovers 24 new pulsars in archival data. The combined computing power of 200,000 private PCs helps astronomers take an inventory of the Milky Way. | Read More » Scientists detail critical role of gene in many lung cancer cases  | Scientists have shown that a well-known cancer-causing gene implicated in a number of malignancies plays a far more critical role in non-small cell lung cancer, the most common form of the disease, than previously thought. | Read More » First large scale study links autism and autoimmunity  | A new study of more than 2,700 mothers of children with autism shows that about one in 10 mothers have antibodies in their bloodstream that react with proteins in the brain of their babies. | Read More » 'Safe' levels of environmental pollution may have long-term health consequences  | If you're eating better and exercising regularly, but still aren't seeing improvements in your health, there might be a reason: Pollution. According to a new research report what you are eating and doing may not be the problem, but what's in what you are eating could be the culprit. | Read More » Statins may slow human aging by protecting against telomere shortening: A feature of senescent cells  | Not only do statins extend lives by lowering cholesterol levels and reducing the risks of cardiovascular disease, but new research suggests that they may extend lifespans as well. Specifically, statins may reduce the rate at which telomeres shorten, a key factor in the natural aging process. This opens the door for using statins, or derivatives of statins, as an anti-aging therapy. | Read More » Protect corridors to save tigers, leopards  | Conservation geneticists makes the case that landscape-level tiger and leopard conservation that includes protecting the corridors the big cats use for travel between habitat patches is the most effective conservation strategy for their long-term survival. | Read More » Newly discovered weakness in cancer cells make them more susceptible to chemotherapy  | A new weakness discovered in cancer cells may cause increased susceptibility to chemotherapy and other treatments. Researchers have identified the HDAC5 protein as essential for maintenance of telomeres within cancer cells that promote their longevity. Cells with longer telomeres are more resistant to therapies, while cells with shorter telomeres are more susceptible. By targeting this mechanism used to maintain telomeres, existing therapies could become more effective at eradicating cancer. | Read More » Doubling the daily allowance of protein intake with diet and exercise protects muscle loss  | A new report challenges the long-held adage that significant muscle loss is unavoidable when losing weight through exercise and diet. In the report, scientists show that consuming twice the recommended daily allowance (RDA) of protein while adhering to a diet and exercise plan prevents the loss of muscle mass and promotes fat loss. Tripling the RDA of protein failed to provide additional benefits. | Read More » Reproducing nature's chemistry: Researchers alter molecular properties in a new way  | Taking cues from nature, researchers have tested a new method for achieving particular molecular properties: by changing the geometry of the surface to which the molecule is bound. | Read More » Potential diagnostic marker for zinc status offers insights into the effects of zinc deficiency  | According to new research, a drop in blood zinc levels does not directly harm the blood vessel cells. Rather, zinc regulates the production of a small molecular compound, which circulates in the blood, causing harmful blood vessel cell effects. Additionally, not only will having adequate amounts of zinc prevent the creation of this compound, but it can protect you when the compound is circulating in your blood. | Read More » Dieting for obese mothers just before pregnancy may not be enough  | If you are obese, and hoping to lose weight before conception, some of the epigenetic damage might have already been done. New research shows that not only is dieting before getting pregnant not enough to prevent diabetes risks, but could actually present new risks as well. Knowing how maternal health and behavior affects how genes express themselves in offspring should help develop more precise prenatal strategies to maximize the health of newborn children. | Read More » New imaging technology promising for several types of cancer  | A new form of imaging – PET/MRI – is promising for several types of cancer. | Read More » Antibiotic-resistant strains of Salmonella tracked from farm to fork  | Continuing research on Salmonella may enable researchers to identify and track strains of antibiotic resistant bacteria as they evolve and spread, according to researchers. | Read More » Substance use by adolescents on an average day is alarming  | On an average day, 881,684 U.S. teenagers aged 12 to 17 smoked cigarettes, according to a new report. The report also says that on an average day 646,707 adolescents smoked marijuana and 457,672 drank alcohol. | Read More » Clingy platelets suggest potential treatment strategy for rheumatoid arthritis  | "Clingy" blood platelets may help people with rheumatoid arthritis. Research shows that a sub population of lymphocytes involved in rheumatoid arthritis has platelets attached to their surface. The platelets reduced the lymphocytes' ability to cause disease by reducing activity levels and ability to spread. This research may lead to investigations into treatments that bind platelets to lymphocytes, and the ability to predicting the severity of the disease. | Read More » Adding blood pressure drug to standard antibiotics speeds up TB treatment  | Infectious disease experts have found, in studies in mice, that a drug better known as a treatment for high blood pressure and headaches effectively speeds up treatment of TB when added to the standard, daily antibiotic regimen. Test animals were cured in four months instead of the usual six. | Read More » Unexpected use of former cancer drug  | Researchers have unexpectedly discovered that an old cancer drug can be used to prevent rejection of transplanted tissue. The researchers now have high hopes that their discovery could lead to new treatments for both transplant patients and patients with autoimmune diseases. | Read More » Now hear this: Scientists discover compound to prevent noise-related hearing loss  | Your mother was right when she warned you that loud music could damage your hearing, but now scientists have discovered exactly what gets damaged and how. Scientists now describe exactly what type of damage noise does to the inner ear, and provide insights into a compound that may prevent noise-related damage. | Read More » Learning a new language alters brain development  | The age at which children learn a second language can have a significant bearing on the structure of their adult brain, according to a new study. | Read More » Single gene change increases mouse lifespan by 20 percent  | By lowering the expression of a single gene, researchers have extended the average lifespan of a group of mice by about 20 percent -- the equivalent of raising the average human lifespan by 16 years, from 79 to 95. The research team targeted a gene called mTOR, which is involved in metabolism and energy balance, and may be connected with the increased lifespan associated with caloric restriction. | Read More » Nasa's Hubble sees a cosmic caterpillar  | The light-year-long knot of interstellar gas and dust, seen in this Hubble photo, resembles a caterpillar on its way to a feast. Harsh winds from extremely bright stars are blasting ultraviolet radiation at this 'wanna-be' star and sculpting the gas and dust into its long shape. | Read More » On warming Antarctic Peninsula, moss and microbes reveal unprecedented ecological change  | By carefully analyzing a 150-year-old moss bank on the Antarctic Peninsula, researchers describe an unprecedented rate of ecological change since the 1960s driven by warming temperatures. | Read More » NASA's Chandra Observatory catches giant black hole rejecting material  | Astronomers using NASA's Chandra X-ray Observatory have taken a major step in explaining why material around the giant black hole at the center of the Milky Way Galaxy is extraordinarily faint in X-rays. This discovery holds important implications for understanding black holes. | Read More » NASA data reveals mega-canyon under Greenland ice sheet  | Data from a NASA airborne science mission reveals evidence of a large and previously unknown canyon hidden under a mile of Greenland ice. The canyon has the characteristics of a winding river channel and is at least 460 miles (750 kilometers) long, making it longer than the Grand Canyon. In some places, it is as deep as 2,600 feet (800 meters), on scale with segments of the Grand Canyon. This immense feature is thought to predate the ice sheet that has covered Greenland for the last few million years. | Read More » | |
No comments:
Post a Comment