CAMBRIDGE, MA -- When a current passes between two electrodes — one thinner than the other — it creates a wind in the air between. If enough voltage is applied, the resulting wind can produce a thrust without the help of motors or fuel. This phenomenon, called electrohydrodynamic thrust — or, more colloquially, "ionic wind" — was first identified in the 1960s. Since then, ionic wind has largely been limited to science-fair projects and basement experiments; hobbyists have posted hundreds of how-to videos on building "ionocrafts" — lightweight vehicles made of balsa wood, ...

Diversity training programs lead people to believe that work environments are fair even when given evidence of hiring, promotion or salary inequities, according to new findings by psychologists at the University of Washington and other universities. The study also revealed that participants, all of whom were white, were less likely to take discrimination complaints seriously against companies who had diversity programs. Workplace diversity programs are usually developed by human resource departments to foster a more inclusive environment for employees, but aren't typically ...

PROVIDENCE, R.I. [Brown University] — Long vilified, invasive species can sometimes become an ecosystem asset. New Brown University research published online in the journal Ecology reports exactly such a situation in the distressed salt marshes of Cape Cod. There, the invasive green crab Carcinus maenas is helping to restore the marsh by driving away the Sesarma reticulatum crabs that have been depleting the marsh grasses. The observations and experiments of the research show that the green crab has filled the void left by the decline of native predators of sesarma crabs, ...

The creation of new blood vessels in the body, called "angiogenesis," is usually discussed in connection with healing wounds and tumors. But it's also an ongoing process in the female reproductive tract, where the growth and breaking of blood vessels is a normal part of the menstrual cycle. But abnormal growth of blood vessels can have painful consequences and resultant pathologies. Now, Prof. Ruth Shalgi and research associate Dr. Dana Chuderland of Tel Aviv University's Sackler Faculty of Medicine have found a potential treatment for this abnormal growth in a potent ...

COLUMBUS, Ohio – A scientist's gender can have a big impact on how other researchers perceive his or her work, according to a new study. Young scholars rated publications supposedly written by male scientists as higher quality than identical work identified with female authors. The research found that graduate students in communication -- both men and women -- showed significant bias against study abstracts they read whose authors had female names like "Brenda Collins" or "Melissa Jordan." These students gave higher ratings to the exact same abstracts when the authors ...

Cancer painfully ends more than 500,000 lives in the United States each year, according to the Centers for Disease Control and Prevention. The scientific crusade against cancer recently achieved a victory under the leadership of University of Missouri Curators' Professor M. Frederick Hawthorne. Hawthorne's team has developed a new form of radiation therapy that successfully put cancer into remission in mice. This innovative treatment produced none of the harmful side-effects of conventional chemo and radiation cancer therapies. Clinical trials in humans could begin soon ...

WEST LAFAYETTE, Ind. – A new study shows clean-air regulations have dramatically reduced acid rain in the United States, Europe, Japan and South Korea over the past 30 years, but the opposite is true in fast-growing East Asian megacities, possibly due to lax antipollution rules or lack of enforcement. The U.S. Clean Air Act began requiring regulatory controls for vehicle emissions in the 1970s, and 1990 amendments addressed issues including acid rain. Similar steps in the European Union, Japan and South Korea over the past three decades have reduced nitrate and sulfate ...

UCLA researchers have used a brain-imaging tool and stroke risk assessment to identify signs of cognitive decline early on in individuals who don't yet show symptoms of dementia. The connection between stroke risk and cognitive decline has been well established by previous research. Individuals with higher stroke risk, as measured by factors like high blood pressure, have traditionally performed worse on tests of memory, attention and abstract reasoning. The current small study demonstrated that not only stroke risk, but also the burden of plaques and tangles, as ...

As the universe expands, it is continually subjected to energy shifts, or "quantum fluctuations," that send out little pulses of "sound" into the fabric of spacetime. In fact, the universe is thought to have sprung from just such an energy shift. A recent paper in the journal Physical Review Letters reports a new mathematical tool that should allow one to use these sounds to help reveal the shape of the universe. The authors reconsider an old question in spectral geometry that asks, roughly, to what extent can the shape of a thing be known from the sound of its acoustic ...

This press release is available in French. AUDIO: Dr. Nitika Pan Pai, researcher at the RI-MUHC and professor at McGill University (Montreal, Canada) talks about HIV Self-testing as a key to control the global epidemic. Click here for more information. Montreal, April 3, 2013 – A new international study has confirmed that self-testing for HIV is effective and could be the answer to controlling the ...

What effects will the rapidly growing field of synthetic biology have on the conservation of nature? The ecological and ethical challenges stemming from this question will require a new dialogue between members of the synthetic biology and biodiversity conservation communities, say Kent Redford of the Wildlife Conservation Society (WCS) and Archipelago Consulting; Bill Adams of the University of Cambridge; and Georgina Mace of University College London (UCL) in a new paper published 2 April in the open access journal PLOS Biology. The field of synthetic biology—a discipline ...

Among patients with painful chemotherapy-induced peripheral neuropathy, use of the anti-depressant drug duloxetine for 5 weeks resulted in a greater reduction in pain compared with placebo, according to a study in the April 3 issue of JAMA. "Approximately 20 percent to 40 percent of patients with cancer who receive neurotoxic chemotherapy (e.g., taxanes, platinums, vinca alkaloids, bortezomib) will develop painful chemotherapy-induced peripheral neuropathy. Painful chemotherapy-induced neuropathy can persist from months to years beyond chemotherapy completion, causing ...

In an analysis that included data on more than 10 million Medicare beneficiaries admitted to acute care hospitals with a heart attack, congestive heart failure, or pneumonia between 2002 and 2010, 30-day mortality rates for those admitted to critical access hospitals (designated hospitals that provide inpatient care to individuals living in rural communities) increased during this time period compared with patients admitted to other acute care hospitals, according to a study in the April 3 issue of JAMA. "More than 60 million Americans live in rural areas and face challenges ...

With previous evidence suggesting that melatonin may have a role in glucose metabolism, researchers have found an independent association between decreased secretion of melatonin and an increased risk for the development of type 2 diabetes, according to a study in the April 3 issue of JAMA. "Melatonin receptors have been found throughout the body in many tissues including pancreatic islet cells, reflecting the widespread effects of melatonin on physiological functions such as energy metabolism and the regulation of body weight," according to background information in ...

Use of a vaccine to prevent Staphylococcus aureus infections among patients undergoing cardiothoracic surgery did not reduce the rate of serious postoperative S aureus infections compared with placebo and was associated with increased mortality among patients who developed S aureus infections, according to a study in the April 3 issue of JAMA. Infections with S aureus following median sternotomy (incision through the midline of the sternum) cause substantial illness and death. "A safe vaccine that provides protection against a majority of S aureus strains during the ...

Boston – Millions of Americans are diagnosed with type 2 diabetes, yet the exact causes of diabetes still puzzle scientists. Now, new research from Brigham and Women's Hospital (BWH) finds that the amount of melatonin a person secretes during sleep may predict their risk of developing type 2 diabetes. The study appears in the April 3, 2013 issue of JAMA. "This is the first time that an independent association has been established between nocturnal melatonin secretion and type 2 diabetes risk," said Dr. Ciaran McMullan, a researcher in the Renal Division and Kidney ...

Toronto, CANADA – Non-musicians who speak tonal languages may have a better ear for learning musical notes, according to Canadian researchers. Tonal languages, found mainly in Asia, Africa and South America, have an abundance of high and low pitch patterns as part of speech. In these languages, differences in pitch can alter the meaning of a word. Vietnamese, for example, has eleven different vowel sounds and six different tones. Cantonese also has an intricate six-tone system, while English has no tones. Researchers at Baycrest Health Sciences' Rotman Research ...

### About the University of Massachusetts Medical School The University of Massachusetts Medical School, one of the fastest growing academic health centers in the country, has built a reputation as a world-class research institution, consistently producing noteworthy advances in clinical and basic research. The Medical School attracts more than $250 million in research funding annually, 80 percent of which comes from federal funding sources. The mission of the Medical School is to advance the health and well-being of the people of the commonwealth and the world through ...

LAFAYETTE - Tiny sea creatures no bigger than a thumbtack are being credited for playing a key role in helping provide healthy habitats for many kinds of seafood, according to a new study by the Virginia Institute of Marine Science and U.S. Geological Survey. The little crustacean "grazers," some resembling tiny shrimp, are critical in protecting seagrasses from overgrowth by algae, helping keep these aquatic havens healthy for native and economically important species. Crustaceans are tiny to very large shelled animals that include crab, shrimp, and lobster. The ...

PROVIDENCE, R.I. [Brown University] — Despite the unimaginable energy produced during large impacts on the Moon, those impacts may not wipe the mineralogical slate clean, according to new research led by Brown University geoscientists. The researchers have discovered a rock body with a distinct mineralogy snaking for 18 miles across the floor of Copernicus crater, a 60-mile-wide hole on the Moon's near side. The sinuous feature appears to bear the mineralogical signature of rocks that were present before the impact that made the crater. The deposit is interesting because ...

When surveying in the Upper Basin of the Grand Canyon National Park in April 2011, University of Cincinnati faculty and students discovered a previously unknown 17-room subterranean pueblo that likely dates back to the 12th century. For UC anthropology graduate student Ryan Washam, that find – in which he took part – helped spark his current research in how federal agencies are conducting archaeological and environmental protection and preservation efforts in a time of tight budgets. Washam, 23, of Florence, Ky., will present a case study of protection and preservation ...

RESEARCH TRIANGLE PARK, N.C. – Millions of adults are exposed to traumatic events each year. Shortly after exposure many experience symptoms of posttraumatic stress disorder (PTSD) such as flashbacks, emotional numbing and difficulty sleeping. Despite this high rate of exposure, little is known about the effectiveness of treatments aimed at preventing and relieving posttraumatic stress symptoms that adults may experience after such events, according to researchers at the RTI-UNC Evidence-based Practice Center. The article, published online today by the American Journal ...

MADISON — As the shapes of galaxies go, the spiral disk — with its characteristic pinwheel profile — is by far the most pedestrian. Our own Milky Way, astronomers believe, is a spiral. Our solar system and Earth reside somewhere near one of its filamentous, swept-back arms. And nearly 70 percent of the galaxies closest to the Milky Way are spirals, suggesting they have taken the most ordinary of galactic forms in a universe with billions of galaxies. But despite their common morphology, how galaxies like ours get and maintain their characteristic arms has proved to ...

New Rochelle, NY, April 2, 2013—The seizures that affect people with temporal-lobe epilepsy usually start in a region of the brain called the hippocampus. But they are often able to involve other areas outside the temporal lobe, propagating via anatomically and functionally connected networks in the brain. New research findings that link decreased brain cell concentration to altered functional connectivity in temporal-lobe epilepsy are reported in an article in Brain Connectivity, a bimonthly peer-reviewed publication from Mary Ann Liebert, Inc., publishers. The article ...

Our emotional responses to the stresses of daily life may predict our long-term mental health, according to a new study published in Psychological Science, a journal of the Association for Psychological Science. Psychological scientist Susan Charles of the University of California, Irvine and colleagues conducted the study in order to answer a long-standing question: Do daily emotional experiences add up to make the straw that breaks the camel's back, or do these experiences make us stronger and provide an inoculation against later distress? Using data from two national ...