WASHINGTON -- The U.S. should significantly reform the federal system for financing physician training and residency programs to ensure that the public's $15 billion annual investment is producing the doctors that the nation needs, says a new report by the Institute of Medicine. Current financing -- provided largely through Medicare -- requires little accountability, allocates funds independent of workforce needs or educational outcomes, and offers insufficient opportunities to train physicians in the health care settings used by most Americans, the report says. All ...

A team of researchers has created a new way of manufacturing microstructured surfaces that have novel three-dimensional textures. These surfaces, made by self-assembly of carbon nanotubes, could exhibit a variety of useful properties — including controllable mechanical stiffness and strength, or the ability to repel water in a certain direction. "We have demonstrated that mechanical forces can be used to direct nanostructures to form complex three-dimensional microstructures, and that we can independently control … the mechanical properties of the microstructures," says ...

Tropical Storm Hernan degenerated into a remnant low pressure area on July 29. Infrared imagery from NASA's Aqua satellite revealed cloud tops were warming as the storm weakened. The Atmospheric Infrared Sounder or AIRS instrument aboard Aqua gathered infrared data on a quickly weakening Hernan on July 29 at 5:11 a.m. EDT. The data was then made into a false-colored image at NASA's Jet Propulsion Laboratory in Pasadena, California. The AIRS image showed small, fragmented areas of a few powerful thunderstorms with high, cold cloud tops in Tropical Storm Hernan as it continued ...

An elusive state of matter called superconductivity could be realized in stacks of sheetlike crystals just a few atoms thick, a trio of physicists has determined. Superconductivity, the flow of electrical current without resistance, is usually found in materials chilled to the most frigid temperatures, which is impractical for most applications. It's been observed at higher temperatures–higher being about 100 kelvin or minus 280 degrees below zero Fahrenheit–in copper oxide materials called cuprate superconductors. But those materials are brittle and unsuitable for fabricating ...

The brains of children with autism are relatively inflexible at switching from rest to task performance, according to a new brain-imaging study from the Stanford University School of Medicine. Instead of changing to accommodate a job, connectivity in key brain networks of autistic children looks similar to connectivity in the resting brain. And the greater this inflexibility, the more severe the child's manifestations of repetitive and restrictive behaviors that characterize autism, the study found. The study, which will be published online July 29 in Cerebral Cortex, ...

The microbes living in the guts of males and females react differently to diet, even when the diets are identical, according to a study by scientists from The University of Texas at Austin and six other institutions published this week in the journal Nature Communications. These results suggest that therapies designed to improve human health and treat diseases through nutrition might need to be tailored for each sex. The researchers studied the gut microbes in two species of fish and in mice, and also conducted an in-depth analysis of data that other researchers collected ...

Researchers from the Vienna University of Technology have performed the first separation of a particle from one of its properties. The study, carried out at the Institute Laue-Langevin (ILL) and published in Nature Communications, showed that in an interferometer a neutron's magnetic moment could be measured independently of the neutron itself, thereby marking the first experimental observation of a new quantum paradox known as the 'Cheshire Cat'. The new technique, which can be applied to any property of any quantum object, could be used to remove disturbance and improve ...

The Quantum Cheshire Cat: Can a particle be separated from its properties? On July 29, the prestigious journal, Nature Communications, published the results of the first Cheshire Cat experiment, separating a neutron from its magnetic field, conducted by Chapman University in Orange, CA, and Vienna University of Technology. Chesire Cat"Well! I've often seen a cat without a grin," thought Alice in Wonderland, "but a grin without a cat! It's the most curious thing I ever saw in my life!" Alice's surprise stems from her experience that an object and its property cannot exist ...

The Cheshire Cat featured in Lewis Caroll's novel "Alice in Wonderland" is a remarkable creature: it disappears, leaving its grin behind. Can an object be separated from its properties? It is possible in the quantum world. In an experiment, neutrons travel along a different path than one of their properties – their magnetic moment. This "Quantum Cheshire Cat" could be used to make high precision measurements less sensitive to external perturbations. At Different Places at Once According to the law of quantum physics, particles can be in different physical states at ...

But on the remote UK overseas territory of Ascension Island, one of the world's largest green turtle populations is undergoing something of a renaissance. Writing in the journal Biodiversity and Conservation, scientists from the University of Exeter and Ascension Island Government Conservation Department report that the number of green turtles nesting at the remote South Atlantic outpost has increased by more than 500 per cent since records began in the 1970s. As many as 24,000 nests are now estimated to be laid on the Island's main beaches every year, making it the second ...

According to findings from a new study by University of Chicago Booth School of Business Professor Jane Risen, and Chicago Booth doctoral student Juliana Schroeder, it may at least be a start. Risen and Schroeder conducted research on Seeds of Peace, one of the largest peacebuilding programs that brings together teenagers from conflict regions, including Israelis and Palestinians, every year for three weeks in rural Maine. They tracked participants' feelings and attitudes toward the other national group for three years with three separate cohorts of campers. They found ...

HOUSTON – (July 29, 2014) – Tough, ultralight foam of atom-thick sheets can be made to any size and shape through a chemical process invented at Rice University. In microscopic images, the foam dubbed "GO-0.5BN" looks like a nanoscale building, with floors and walls that reinforce each other. The structure consists of a pair of two-dimensional materials: floors and walls of graphene oxide that self-assemble with the assistance of hexagonal boron nitride platelets. The researchers say the foam could find use in structural components, as supercapacitor and battery electrodes ...

Cold Spring Harbor, NY -- Researchers at Cold Spring Harbor Laboratory (CSHL) have discovered a new function of the body's most important tumor-suppressing protein. Called p53, this protein has been called "the guardian of the genome." It normally comes to the fore when healthy cells sense damage to their DNA caused by stress, such as exposure to toxic chemicals or intense exposure to the sun's UV rays. If the damage is severe, p53 can cause a cell to commit preprogrammed cell-death, or apoptosis. Mutant versions of p53 that no longer perform this vital function, on the ...

INDIANAPOLIS -- With the increasing use of electronic medical records and health information exchange, there is a growing demand for a computerized version of the preventive care guidelines pediatricians use across the United States. In a new study, researchers from the Indiana University School of Medicine and the Regenstrief Institute report that substantial work lies ahead to convert the American Academy of Pediatrics' Bright Future's guidelines into computerized prompts for physicians, but the payoff has the potential to significantly benefit patients from birth to ...

If you've ever ordered the wrong food at a restaurant, don't blame yourself; blame the menu. What you order may have less to do with what you want and more to do with a menu's layout and descriptions. After analyzing 217 menus and the selections of over 300 diners, the Cornell study published this month in the International Journal of Hospitality Management showed that when it comes to what you order for dinner, two things matter most: what you see on the menu and how you imagine it will taste. First, any food item that attracts attention (with bold, hightlighted or ...

As fishing and the harvesting of metals, gas and oil have expanded deeper and deeper into the ocean, scientists are drawing attention to the services provided by the deep sea, the world's largest environment. "This is the time to discuss deep-sea stewardship before exploitation is too much farther underway," says lead-author Andrew Thurber. In a review published today in Biogeosciences, a journal of the European Geosciences Union (EGU), Thurber and colleagues summarise what this habitat provides to humans, and emphasise the need to protect it. "The deep sea realm is so ...

(PHILADELPHIA) – There is controversy over how best to treat patients after they've undergone surgery for prostate cancer. Does one wait until the cancer comes back or provide men with additional radiation therapy to prevent cancer recurrence? Now, a new study from Thomas Jefferson University shows that a genomic tool can help doctors and patients make a more informed decision. "We are moving away from treating everyone the same," says first author Robert Den, M.D., Assistant Professor of Radiation Oncology and Cancer Biology at Thomas Jefferson University. "Genomic ...

Scale plays a major role in locomotion. Swimming microorganisms, such as bacteria and spermatozoa, are subjected to relatively small inertial forces compared to the viscous forces exerted by the surrounding fluid. Such low-level inertia makes self-propulsion a major challenge. Now, scientists have found that the direction of propulsion made possible by such inertia is opposite to that induced by a viscoelastic fluid. These findings have been published in EPJ E by François Nadal from the Alternative Energies and Atomic Energy Commission (CEA), in Le Barp, France, and colleagues. ...

CHAMPAIGN, Ill. — By studying the injuries and aptitudes of Vietnam War veterans who suffered penetrating head wounds during the war, scientists are tackling -- and beginning to answer -- longstanding questions about how the brain works. The researchers found that brain regions that contribute to optimal social functioning also are vital to general intelligence and to emotional intelligence. This finding bolsters the view that general intelligence emerges from the emotional and social context of one's life. The findings are reported in the journal Brain. "We are ...

Ocean acidification is driving changes in waters vital to Alaska's valuable commercial fisheries and subsistence way of life, according to new NOAA-led research that will be published online in Progress in Oceanography. Many of Alaska's nutritionally and economically valuable marine fisheries are located in waters that are already experiencing ocean acidification, and will see more in the near future, the study shows. Communities in southeast and southwest Alaska face the highest risk from ocean acidification because they rely heavily on fisheries that are expected to ...

There's some good news for parents of preterm babies – latest research from the University of Adelaide shows that by the time they become teenagers, the brains of many preterm children can perform almost as well as those born at term. A study conducted by the University's Robinson Research Institute has found that as long as the preterm child experiences no brain injury in early life, their cognitive abilities as a teenager can potentially be as good as their term-born peers. However, the results of the study, published in this month's issue of The Journal of Pediatrics, ...

July 29, 2014 – A simplified anesthesia procedure may enable more widespread use of preoperative testing to demonstrate the cause of airway obstruction in patients with severe sleep apnea, suggests a study in Anesthesia & Analgesia. Dr. Joshua H. Atkins and Dr. Jeff E. Mandel of the University of Pennsylvania and their colleagues have developed a new "ramp control" anesthetic technique for putting patients to sleep briefly-just enough to show the "obstructive anatomy" responsible for sleep apnea. The simplified technique requires no special expertise and limits drops ...

Achalasia is a rare disease – it affects 1 in 100,000 people – characterized by a loss of nerve cells in the esophageal wall. While its cause remains unknown, a new study by a team of researchers at KU Leuven in Belgium, the University of Bonn in Germany and other European institutions confirms for the first time that achalasia is autoimmune in origin. The study, published on 6 July in Nature Genetics, is an important step towards unraveling the mysterious disease. When we swallow, a sphincter in the lower esophagus opens, allowing food to enter the stomach. Nerve cells ...

Two new reports that focus on the global electricity water nexus have just been published. Three years of research show that by the year 2040 there will not be enough water in the world to quench the thirst of the world population and keep the current energy and power solutions going if we continue doing what we are doing today. It is a clash of competing necessities, between drinking water and energy demand. Behind the research is a group of researchers from Aarhus University in Denmark, Vermont Law School and CNA Corporation in the US. In most countries, electricity ...

Epidemiological studies have repeatedly shown that death rates rise in association with extremely hot weather. The heat wave in Western Europe in the summer of 2003, for example, resulted in about 22,000 extra deaths. A team of researchers led by Dr. Alex-andra Schneider at the Institute of Epidemiology II at the Helmholtz Zentrum München examined the impact of extreme temperatures on the number of deaths caused by cardiovascular disease in three Bavarian cities and included both high and low temperatures in the study. "Our findings confirm the results of our previous ...