Nobody likes flight delays, but they are a common occurrence: In 2011, about 20 percent of U.S. flights were at least 15 minutes behind schedule. Those delays irritate passengers and, in 2010, added an estimated $6.5 billion to U.S. airlines' operating costs. Delays tend to hit some airlines harder than others, due to the approach the Federal Aviation Administration (FAA) uses to resolve them. This approach places an emphasis on minimizing aggregate system delays, nationwide -- a policy that affects some airlines much more than others at a given time. But now a study ...

While exploring the remote coral reefs of Raja Ampat in Indonesia, Dr. James Thomas from the Halmos College of Natural Sciences and Oceanography, Florida, and his colleagues from Naturalis Natural History museum in the Netherlands, stumbled across a small but extraordinary crustacean living inside another reef invertebrate in a commensal association (without causing any harm, nor benefit to its host). In his amazement to the amphipod's unusual form, Dr. Tomas called it L. eltoni after musician and actor Sir Elton John. The research is available in the open access journal ...

Female mice exposed in utero, or in the womb, to low levels of arsenic through drinking water displayed signs of early puberty and became obese as adults, according to scientists from the National Institutes of Health. The finding is significant because the exposure level of 10 parts per billion used in the study is the current U.S. Environmental Protection Agency standard, or maximum allowable amount, for arsenic in drinking water. The study, which appeared online August 21 in the journal Environmental Health Perspectives, serves as a good starting point for examining ...

The Global Precipitation Measurement or GPM mission core satellite can measure rainfall from space, and saw heavy rainfall in the Central Pacific's Loke when it was a hurricane. Hurricane Loke formed southwest of the Hawaiian Islands on August 21, 2015 but Loke has not been a threat to Hawaii because it intensified to hurricane strength while moving well west of Hawaii over the open waters of the Pacific Ocean. The GPM core observatory satellite measured precipitation within the hurricane as it flew above the most powerful thunderstorms in the hurricane on August 25, ...

"If I offered you a bruised banana, you probably wouldn't be interested," said Jonathan Deutsch, PhD, director of Drexel University's Center for Hospitality and Sport Management. "But what if I offered you some banana ice cream on a hot summer day? I bet you'd find that a lot more appealing." It was this simple observation that inspired a new model for recovering would-be wasted - or surplus - food and repurposing it to feed hungry people, generate revenue and even create jobs. The model was recently piloted in West Philadelphia, home to a large population of low-income ...

Summertime is waning, and that means the end of backyard barbecues is almost upon us. That also means an end to dousing charcoal briquettes with lighter fluid. Reducing the use of lighter fluid might not be a bad thing, as many of those products are made from crude oil and emit potentially harmful compounds when lit. Now, researchers report in ACS Sustainable Chemistry & Engineering that they developed a waste-paper-based, environmentally friendly and sustainable alternative. Igniting fires has been a keystone to human civilization. Ancient communities used plant and ...

As Tropical Storm Ericka continued moving toward the Lesser Antilles, NASA's Aqua and other satellites were gathering data. Satellite imagery showed strong thunderstorms wrapped around Erika's center. Infrared data, such as that gathered by the Atmospheric Infrared Sounder (AIRS) instrument that flies aboard NASA's Aqua satellite is used to determine cloud top temperature. The colder the cloud tops, the higher they are in the atmosphere, and they are usually stronger. Cloud tops around Erika's center were near -63F/-53C, indicating strong thunderstorms. A Tropical Storm ...

Individuals previously diagnosed with heart disease may be less likely to experience heart failure, heart attacks, or stroke, or to die from these events, if they have higher blood levels of two very closely related proteins, according to a new study led by a UC San Francisco research team. One of these proteins, known as GDF11, has attracted great interest since 2013, when researchers showed that it could rejuvenate old mice. Based on these findings, scientists have speculated that drugs that increase GDF11 levels might reverse physiological manifestations of aging that ...

Researchers from the University of Birmingham have shown that drinking 500ml of water at half an hour before eating main meals may help obese adults to lose weight. They believe that the simple intervention could be hugely beneficial, and be easily promoted by healthcare professionals and through public health campaigns. Obese adult participants were recruited from general practices and monitored over a 12 week period. Each of the participants, all adults with obesity, were given a weight management consultation, where they were advised on how to adapt their lifestyle ...

PITTSBURGH, Aug. 26, 2015 - Obese women are nearly twice as likely as their lean counterparts to have stillborn babies for several specific, potentially preventable medical reasons, a new University of Pittsburgh Graduate School of Public Health analysis reveals. Placental diseases and hypertension were the most common causes of stillbirth among obese women, according to the study, published online and scheduled for the October issue of the American Journal of Clinical Nutrition. The research was supported by the National Institutes of Health (NIH). "We've known for ...

A group of intrepid Israeli researchers recently went back to the dawn of the Stone Age to make lunch. Using 12,500-year-old conical mortars carved into bedrock, they reconstructed how their ancient ancestors processed wild barley to produce groat meals, as well as a delicacy that might be termed "proto-pita" - small loaves of coal-baked, unleavened bread. In so doing, they re-enacted a critical moment in the rise of civilization: the emergence of wild-grain-based nutrition, some 2,000 to 3,000 years before our hunter-gatherer forebears would establish the sedentary ...

Some dying stars suffer from 'irregular heartbeats', research led by astronomers at the University of Warwick has discovered. The research confirms rapid brightening events in otherwise normal pulsating white dwarfs, which are stars in the final stage of their life cycles. In addition to the regular rhythm from pulsations they expected on the white dwarf PG1149+057, which cause the star to get a few percent brighter and fainter every few minutes, the researchers also observed something completely unexpected every few days: arrhythmic, massive outbursts, which broke ...

Computing --the creation of supercomputers, above all-- enables scientists and engineers to analyse highly complex physical processes using simulation techniques. In this case, researchers in the UPV/EHU's Department of Computer Architecture and Technology and the Department of Materials Physics are collaborating with researchers from various universities (including the Universidade de Coimbra, Universitat de Barcelona, Lawrence Livermore National Laboratory, Martin-Luther-Universität Halle-Wittenberg, University of Liege) to analyse the photosynthesis process basing ...

(PHILADELPHIA) -- Alternative medicines are widely thought to be at least harmless and very often helpful for a wide range of discomforts and illnesses. However, although they're marketed as "natural," they often contain active ingredients that can react chemically and biologically with other therapies. Researchers performed a comprehensive review of all of the medications taken by senior oncology patients and found that as 26 percent were using complementary or alternative medicines (CAM), in a report published August 12th, in the Journal of Geriatric Oncology. "Currently, ...

(Boston)--Educating clinicians on how to safely prescribe opioids can help decrease opioid misuse among chronic pain sufferers. These findings, which appear online in the journal Pain Medicine, confirm that education can empower clinicians to make more informed clinical decisions about initiating, continuing, changing or discontinuing opioids for patients suffering from chronic pain based on a careful benefit versus risk/harm assessment. Chronic pain affects approximately 100 million people in the U.S. making it one of the most common reasons patients seek medical ...

The great escape: why awareness of our own mortality can be bad for our health People with low self-esteem use a variety of escape mechanisms to avoid thinking about their own mortality, new research reveals. Researchers led by Dr Arnaud Wisman, of the University of Kent's School of Psychology, found evidence in five studies that people with low self-esteem respond to reminders of their own mortality by directing their focus away from the 'self'. The research found an empirical and causal link between people with low self-esteem having unconscious concerns about ...

This news release is available in German. An LMU team has shown that the axons of auditory neurons in the brainstem which respond to low and high-frequency sounds differ in their morphology, and that these variations correlate with differences in the speed of signal conduction. As a rule, the axons (i.e. signal-transmitting fibers) of the neurons in the central nervous systems of vertebrates are ensheathed in layers of myelin, which serves as a form of insulation that improves their electrical conduction properties. In fact, the fat-rich myelin coating largely consists ...

Rehabilitation is recommended for many patients following a hospital stay for acute heart disease. In a recent original article in Deutsches Ärzteblatt International (Dtsch Arztebl int 112: 527-34) Axel Schlitt et al. show that this improves prognosis for heart disease and can thus reduce patient mortality. More than 1900 patients in Saxony-Anhalt were contacted and asked to fill out a questionnaire. They had spent time in the hospital for serious cardiovascular disease an average of 11 years earlier. The authors used the data to analyze how many of the patients who ...

Cholecystectomy and treatment for inguinal, femoral, umbilical, or abdominal hernia are common surgeries and are considered routine in Germany. In an original article in the current edition of Deutsches Ärzteblatt International (Dtsch Arztebl Int 112: 535-43), Ulrike Nimptsch and Thomas Mansky show that fewer than 0.5% of patients die as a result of such surgeries. However, in those who do die risks are frequently apparent even before surgery. Between 2009 and 2013, 731 000 cholecystectomies and 1 023 000 herniotomies took place in Germany. Over 2400 of the patients ...

This news release is available in Spanish. The behaviour involving rejection of new foodstuffs is a typical phase in infant development, above all in 2- to 3-year-olds and which subsides around the age of 5. The children who go through dietary neophobia also display signs of anguish and anxiety and this behaviour may even turn into a habit in adulthood. In her PhD thesis the researcher of the UPV/EHU's Faculty of Psychology Edurne Maiz conducted a study on 831 schoolchildren between the ages of 8 and 16. In the study she used questionnaires on infant neophobia -adapted ...

University of Alberta paleontologists have discovered a new species of lizard, named Gueragama sulamericana, in the municipality of Cruzeiro do Oeste in Southern Brazil in the rock outcrops of a Late Cretaceous desert, dated approximately 80 million years ago. "The roughly 1700 species of iguanas are almost without exception restricted to the New World, primarily the Southern United States down to the tip of South America," says Michael Caldwell, biological sciences professor from the University of Alberta and one of the study's authors. Oddly however, iguanas closest ...

The humble dust collecting in the average American household harbors a teeming menagerie of bacteria and fungi, and as researchers from the University of Colorado Boulder and North Carolina State University have discovered, it may be able to predict not only the geographic region of a given home, but the gender ratio of the occupants and the presence of a pet as well. The new findings, which were published today in the journal Proceedings of the Royal Society B, highlight the impressive amount of microbial diversity in the average household and the degree to which these ...

Dutch research shows that trained detectives of specialized observation teams are much better at registering details of a drug deal than ordinary civilians. Previous legal-psychological research revealed no relevant differences in observation skills between police professionals and civilians. The findings have been published in Legal and Criminological Psychology. Judges and juries often assume that police officers' statements are more reliable than those of regular eyewitnesses. Because of this assumption, police officers' statements typically carry more weight in legal ...

Only one in five gay and bisexual teen boys have been tested for HIV HIV infections are on the rise for young men who have sex with men Text messages, online program can identify nearby confidential testing sites Testing in schools would 'normalize' the process. CHICAGO --- Young men who have sex with men have the highest risk for HIV infection, but only one in five has ever been tested for HIV, a much lower rate than testing for non-adolescents, reports a new national Northwestern Medicine study conducted in partnership with the Center for Innovative Public ...

On the coral reef, knowing who's your friend and who's your enemy can sometimes be a little complicated. Take seaweed, for instance. Normally it's the enemy of coral, secreting toxic chemicals, blocking the sunlight, and damaging coral with its rough surfaces. But when hordes of hungry crown-of-thorns sea stars invade the reef, everything changes, reports a study to be published August 25 in the journal Proceedings of the Royal Society B. Seaweeds appear to protect coral from the marauding sea stars, giving new meaning to the proverb: "The enemy of my enemy is my friend." ...