Many political leaders, scientists, educators and parents believe that failure is the best teacher. Scientists have long understood that the brain has two ways of learning. One is avoidance learning, which is a punishing, negative experience that trains the brain to avoid repeating mistakes. The other is reward-based learning, a positive, reinforcing experience in which the brain feels rewarded for reaching the right answer. A new MRI study by USC and a group of international researchers has found that having the opportunity to learn from failure can turn it into ...

Since the early days of fertility treatment, women undergoing IVF treatment have had to place a hormonal gel in their vagina on a daily basis for at least 14 days after embryo transfer. The hormone is necessary to increase the chances of pregnancy, but it may also cause some side effects in the form of irritation and leaky discharge. However, the results of a new scientific study suggest that women will be able to avoid this kind of discomfort in the future. "Fertility treatment is a physical and mental challenge for childless couples. The daily treatment with hormonal ...

Researchers at The Australian National University (ANU) and The University of Sydney have developed a world-first radio-tracking drone to locate radio-tagged wildlife. Lead researcher Dr Debbie Saunders from the ANU Fenner School of Environment and Society said the drones have successfully detected tiny radio transmitters weighing as little as one gram. The system has been tested by tracking bettongs at the Mulligan's Flat woodland sanctuary in Canberra. "The small aerial robot will allow researchers to more rapidly and accurately find tagged wildlife, gain insights into ...

A research team at Linköping University, together with colleagues in Europe and the United States, has shown that at extremely high pressure even the innermost electrons in the atomic nuclei of the metal osmium begin to interact with each other, a phenomenon never witnessed before. The findings have been published in Nature. "If we know more about how a matter works, we will be in a better position to develop materials that withstand extreme conditions. In research we're constantly making advances, but in this case we've taken a giant leap", says Igor Abrikosov, ...

A new £6.65 million grant for research aimed at accelerating the discovery and application of new advanced materials for the energy sector was announced today by the Engineering and Physical Sciences Research Council (EPSRC). The grant, awarded to a team led by Professor Matthew Rosseinsky of the University of Liverpool, will support a programme, Integration of Computation and Experiment for Accelerated Materials Discovery. Professor Rosseinsky will head up an expert team at Liverpool and University College London that will work to tackle the challenge of designing ...

Noroviruses are the predominant cause of gastroenteritis outbreaks in community settings such as hospitals, cruise ships, and schools. The virus is extremely contagious and is mostly transmitted via "fecal-oral-route", i.e., through contaminated hands or contaminated food. Symptoms include violent and sudden onset of diarrhea, vomiting, and nausea. "It is therefore important to provide a safe and harmless disinfectant against human norovirus," explains Grant Hansman, head of CHS junior research group at the German Cancer Research Center noroviruses and the University ...

A simple, safe and cost-free modification to a physical technique used to treat patients in the emergency department with an abnormally fast heart rhythm could improve its effectiveness by more than a quarter, according to a study published in The Lancet today (25 August 2015). An abnormally fast heart rhythm, also called supraventricular tachycardia, can be distressing for patients and many come to emergency departments for treatment. Symptoms can include chest pain, light-headedness, dizziness and breathlessness. Episodes can last from a few seconds or, in extreme cases, ...

This news release is available in German. Trillions of bacteria populate the human gut - which makes them more common than any other cells in our body. The composition of this bacterial population is very variable and influenced by our diet. Diseases, but also antibiotic treatments can induce significant shifts in this equilibrium. If entire bacterial groups suddenly multiply heavily, critical situations occur. They damage the intestinal tissue and cause inflammations. How such shifts are triggered largely remained a mystery. Physiologists from the University of Zurich ...

This news release is available in German. Root bacteria are known to form symbiotic relationships with plants by improving the plants' supply of nutrients. Yet as scientists at the Max Planck Institute for Chemical Ecology in Jena, Germany, found recently, the bacteria actually play a much more profound role. During field experiments in Utah, in the western USA, researchers discovered that the right mixture of soil microbiota directly influences the survival of Nicotiana attenuata, a species of wild tobacco. Plants that had been unable to establish a protective ...

University of Manchester scientists have bridged a gap between two separate pieces of small intestine kept alive outside the body, in an advance which could have implications for surgery in human adults and babies. It is not currently possible to study the intestine in embryos when inside the body, which holds back advances in treatment for conditions causing damage in infants. However, new techniques used by the researchers in this study have allowed organs to be kept alive and grown on supports which allow the absorption of nutrients. A video is available here or ...

In an era where popular culture is increasingly recognized for its impact on lay understanding of health and medicine, few scholars have looked at television's powerful role in the creation of patient expectations, especially regarding pregnancy and birth. As part of a larger research project funded by a National Science Foundation Dissertation Improvement Grant, Danielle Bessett, University of Cincinnati assistant professor of sociology in the McMicken College of Arts and Sciences examined how women understand their television viewing practices regarding pregnancy and ...

A team of researchers at the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) developing a bioinorganic hybrid approach to artificial photosynthesis have achieved another milestone. Having generated quite a buzz with their hybrid system of semiconducting nanowires and bacteria that used electrons to synthesize carbon dioxide into acetate, the team has now developed a hybrid system that produces renewable molecular hydrogen and uses it to synthesize carbon dioxide into methane, the primary constituent of natural gas. "This study represents ...

Waterford, Ireland, August 24, 2015 - Ongoing European Research Council-funded research at Waterford Institute of Technology's (WIT) Macular Pigment Research Group (MPRG) is investigating the potential link between cognitive function and levels of a vital eye pigment linked to diet. The study suggests that measuring macular pigment offers potential as a biomarker of cognitive health. The results of this study are highlighted to a global audience through the prestigious international medical journal, the Journal of Alzheimer's Disease. The Waterford clinical trial research, ...

Tahiti is a popular tourist destination, but one unwanted visitor has decided to make its home there: the brown widow spider (Latrodectus geometricus). A paper published in the Journal of Medical Entomology has reported the discovery of the spider for the first time on Tahiti and also on four of the Cook Islands. The brown widow is a known invasive species. It has been found in South America, Central America, North America, the Caribbean islands, and a host of Pacific islands. It was first found in French Polynesia in 2006, when it was discovered on the island of Moorea. ...

WASHINGTON (Aug. 25, 2015)--In the most comprehensive study to date, researchers at the George Washington University have identified a potential link between microbes (viruses, bacteria and fungi) in the throat and schizophrenia. This link may offer a way to identify causes and develop treatments of the disease and lead to new diagnostic tests. "The oropharynx of schizophrenics seems to harbor different proportions of oral bacteria than healthy individuals," said Eduardo Castro-Nallar, a Ph.D. candidate at GW's Computational Biology Institute (CBI) and lead author of ...

Tampa, Fla. (Aug. 25, 2015) - Fresh water--connecting and sustaining all aspects of life on Earth, including food and energy--is in great danger. Moreover, scientists are worried not only about fresh water; they worry that we are not worried enough about fresh water, especially in light of growing concern over recent events, such as the prolonged California drought. The current Special Issue Section of Technology and Innovation - Journal of the National Academy of Inventors has a special section devoted to fresh water and the challenges it faces from us and from the changing ...

Tampa, Fla. (Aug. 25, 2015) - Wasting fresh water is a real concern. A recent study conducted with homeowners in central Florida found that, on average, 64 percent of the drinking water used by homes went to irrigation. In the summer months, this percentage increased to 88 percent. As the population increases, conservation of fresh water becomes increasingly important. The Special Issue Section of the current Technology and Innovation - Journal of the National Academy of Inventors focuses on challenges to fresh water from environmental changes and from the human population. Florida ...

A 24-hour news cycle, viral videos and tweets about football players' run-ins with the law can make it seem like criminal activity is an epidemic in the National Football League. But a new UT Dallas study refutes that impression. The research found that the overall arrest rate for the general population was nearly twice as high as the rate for NFL players from 2000 to 2013. "There's a perception that the NFL has this huge crime problem and that it's longstanding. That's what everybody believes," said one of the study's authors, Dr. Alex Piquero,Ashbel Smith Professor ...

CHICAGO -- Most people who meet a new acquaintance, or merely pass someone on the street, need only a glance to categorize that person as a particular race. But, sociologist Asia Friedman wondered, what can we learn about that automatic visual processing from people who are unable to see? Friedman, an assistant professor of sociology at the University of Delaware, set out to explore that question by interviewing 25 individuals who are blind. She will present her findings in a study at the 110th Annual Meeting of the American Sociological Association (ASA). "The visual ...

CHICAGO -- Romantic opportunities appear to influence women's sexual identities -- but not men's, suggests a new study that will be presented at the 110th Annual Meeting of the American Sociological Association (ASA). "This indicates that women's sexuality may be more flexible and adaptive than men's," said study author Elizabeth Aura McClintock, an assistant professor of sociology at the University of Notre Dame. McClintock's study relies on data from the National Longitudinal Study of Adolescent to Adult Health (Add Health) and considers its first (1994-1995), ...

This news release is available in German. A chimpanzee population in Uganda has been found to be three times larger than previously estimated, according to research published in the open access journal BMC Ecology. The study suggests that chimpanzees may adapt to degraded habitats better than expected, but also highlights the importance of new and more focused conservation strategies. The protected Budongo and Bugoma Forest Reserves together compose approximately one quarter of the estimated total chimpanzee population in Uganda. The unprotected area between ...

Men whose image of themselves falls short of the traditional masculine gender norms, and who feel that others think this about them too, may be more prone to violence than men who feel comfortable in their own skin, suggests research published online in the journal Injury Prevention. How men perceive traditional male gender norms and masculinity can affect their behaviour. In general, 'macho,' highly masculine men are more likely to engage in stereotypical male behaviours, such as risk taking, substance misuse, and acts of aggression, say the researchers. But they wanted ...

A relatively healthy diet before pregnancy is linked to a lower rate of certain heart abnormalities in babies at birth, finds research published in the Archives of Disease in Childhood (Fetal & Neonatal Edition). Congenital heart defects are common, costly, and affect around 1% of newborns in the USA. Around one in four affected children will die infancy as a result. So far, doctors have few preventive options at their fingertips. Some studies suggest that multivitamin supplements might lower the risk while others suggest that better diet quality might make a difference ...

1. Long-term NSAID use associated with reduced colorectal cancer risk Free abstract: http://www.annals.org/article.aspx?doi=10.7326/M15-0039 URLs go live when embargo lifts Long-term, continuous use of low-dose aspirin and nonaspirin nonsteroidal anti-inflammatory drugs (NSAIDs) is associated with decreased colorectal cancer risk. The findings of a population-based, case-control study are published in Annals of Internal Medicine. Colorectal cancer is the third most common non-skin cancer in the world. Colorectal neoplasms have a long progression, making colorectal ...

The risk of breast cancer recurrence and mortality is decreased by endocrine therapy (ET) such as tamoxifen, but younger patients may decline it or discontinue treatment early if they are concerned about fertility, according to a study published August 24 in the JNCI: Journal of the National Cancer Institute. To explore the reasons for lower initiation and continuation with tamoxifen treatment by younger women with breast cancer, Jacqueline S. Jeruss M.D., Ph.D. of The University of Michigan School of Medicine, Ann Arbor, MI and colleagues conducted a study of 515 premenopausal ...