Carnegie Mellon University chemists, led by Mark Bier, have separated and weighed virus particles using mass spectrometry (MS). This is the first time that researchers successfully used matrix-assisted laser desorption ionization MS to analyze a mixture of intact virus particles. Bier, research professor of chemistry and director of Carnegie Mellon's Center for Molecular Analysis, and graduate student Logan Plath will present their findings in a poster session at the American Society for Mass Spectrometry Conference on Mass Spectrometry and Allied Topics today, June 2, ...

In a clinical study of patients in the United States and China, researchers found that a low-cost, portable, battery-powered microendoscope developed by Rice University bioengineers could eventually eliminate the need for costly biopsies for many patients undergoing standard endoscopic screening for esophageal cancer. The research is available online in the journal Gastroenterology and was co-authored by researchers from nearly a dozen institutions that include Rice, Baylor College of Medicine, the Chinese Academy of Medical Sciences and the National Cancer Institute. The ...

BOSTON, MA - Use of antidepressants late in pregnancy has been controversial since the FDA issued a Public Health Advisory in 2006 warning that the use of antidepressants in late pregnancy may increase risk of persistent pulmonary hypertension of the newborn (PPHN), a condition that typically occurs in term or near-term infants and presents within hours of birth with severe respiratory failure requiring intubation and mechanical ventilation. The 2006 public health advisory was based on a single epidemiologic study that found a six-fold increase in risk associated with ...

An analysis of approximately 3.8 million pregnancies finds that use of antidepressants late in pregnancy may be associated with an increased risk of persistent pulmonary hypertension of the newborn (PPHN), according to a study in the June 2 issue of JAMA. However, the absolute risk was small and the risk increase appears more modest than suggested in previous studies. PPHN is a rare but life-threatening condition that occurs when a newborn's circulation system doesn't adapt to breathing outside the womb. Persistent pulmonary hypertension of the newborn is associated with ...

Implementation of a pre-surgical intervention that included screening for the bacteria Staphylococcus aureus, treating patients who were positive for this bacteria, and the administration of antibiotics based on these culture results was associated with a modest reduction in S. aureus surgical site infections, according to a study in the June 2 issue of JAMA. S. aureus carriage increases the risk of S. aureus surgical site infections (SSIs). The risk for these infections may be decreased by screening patients for nasal carriage of S. aureus and decolonizing carriers ...

An analysis of the use of computerized clinical decision support systems regarding orders for advanced diagnostic imaging found that the systems failed to identify relevant appropriateness criteria for the majority of orders, according to a study in the June 2 issue of JAMA. Computerized clinical decision support (CDS) systems that match patient characteristics against appropriateness criteria to produce algorithmic treatment recommendations are a potential means of improving care. The Protecting Access to Medicare Act of 2014 mandates use of CDS systems for the ordering ...

Using tools that help physicians decide whether to use expensive imaging studies such as MRI scans can help reduce the ordering of unnecessary tests, but implementation of the tools in real-world settings has many challenges, according to a new RAND Corporation study. The tools, computer-based programs that match a patient's characteristics against treatment criteria and recommend a treatment, helped increase the proportion of tests for Medicare fee-for-service patients rated as appropriate, according to findings published in the June 2 edition of the Journal of the American ...

This news release is available in French. Montreal, June 2nd, 2015 - A team of researchers from Universite de Montreal, Polytechnique Montreal and the Centre national de la recherche scientifique (CNRS) in France is the first to succeed in preventing two-dimensional layers of black phosphorus from oxidating. In so doing, they have opened the doors to exploiting their striking properties in a number of electronic and optoelectronic devices. The study's results were published in the prestigious journal Nature Materials. Black phosphorus: future key player in new technologies Black ...

Any box or bottle of over-the-counter (OTC) medicine lists its active ingredients prominently on the label. But are consumers using that information to make wise choices about taking two or more OTC drugs at the same time? Probably not, suggests a new study in the Journal of Public Policy & Marketing. "A consumer who takes a cold medicine containing, for instance, acetaminophen, may see nothing wrong with taking an additional medicine that also contains acetaminophen," write authors Jesse R. Catlin (California State University, Sacramento), Connie Pechmann (University ...

You go to the grocery store to buy a pound of ground beef and a can of tomato sauce. You walk out with the ground beef, the sauce, and a bag of chocolate-covered almonds, a silicon spatula, and the latest celebrity magazine. What happened? According to a new study in the Journal of Marketing, what and when you purchased determined the array of items you eventually bought. "Shoppers enter the grocery store planning to buy certain things, but are tempted to buy unplanned items," write authors Timothy J. Gilbride (University of Notre Dame), Jeffrey Inman (University of Pittsburgh), ...

Consumers often complain that online companies violate their privacy--but the problem may be with the consumers themselves. According to a new study in the Journal of Public Policy & Marketing, there can be a big discrepancy between what consumers believe that online privacy policies promise and what those policies do in fact promise. Many consumers assume policy protections that were never there. "The difference between the level of privacy consumers think they have after reading a privacy notice and the level of privacy they actually have can be striking," writes the ...

A new study by a University of Toronto Mississauga researcher has taken the first-ever look at the academic outcomes of children with epilepsy who have had brain surgery, and found that they have a higher chance of struggling in class following their surgery. Psychology professor Mary Lou Smith was co-leader of a team of researchers who studied the arithmetic, spelling, reading and reading comprehension abilities of children after having resective epilepsy surgery, a procedure that involves removing a part of the brain in order to halt seizures. The patients completed ...

Not too long ago, Microsoft mailed loyal Xbox customers an e-card encoded with twenty-five cents' worth of Microsoft points. The software behemoth might have thought it was showing appreciation. But recipients of the company's "generosity" might have felt "Is that all I'm worth?" According to a new study in the Journal of Marketing, companies that bestow monetary gifts in too small amounts can leave customers feeling, well, small. "Financial acknowledgments, if they are too insignificant, can definitely backfire," write authors Peggy J. Liu (Duke University), Cait Lamberton ...

They say you never get a second chance to make a first impression. When it comes to selling, that might be a good thing, suggests a new study in the Journal of Marketing. "Salespeople can make accurate intuitive judgments of a customer's needs, and those judgments can significantly increase sales," write authors Zachary R. Hall (Texas Christian University), Michael Ahearne (University of Houston), and Harish Sujan (Tulane University). "In fact, when a salesperson deliberately rethinks first impressions of a customer, he or she might lose a potential sale." To reach ...

Some 30,000 years ago, prehistoric man wielded animal bones as needles to suture otherwise lethal wounds. This tactic has been used, and improved upon, over time and remains the basis of surgical procedures conducted today. Even with radical new surgical techniques, which rely on metallic and polymeric staples or chemical adhesives to seal incisions, infection and permanent scarring remain major concerns. The success of any wound closure is entirely dependent on the physician's skill set alone. Prof. Abraham Katzir, Head of the Applied Physics Group at Tel Aviv University's ...

COLUMBIA, Mo. - Research has shown that media, such as television and video games, can affect viewers' thoughts and actions. Now, new research by Cynthia Frisby, an associate professor of strategic communication in the University of Missouri School of Journalism, has revealed racial stereotyping in the way media portray athletes. Frisby found that media stories on African-American athletes focus primarily on criminal actions while stories about white athletes are overwhelmingly positive. For her study, Frisby examined 155 news articles about male athletes from online ...

Why do people participate in programs that benefit the environment, even when there seems to be no direct personal benefit in taking part? More specifically, why would consumers pay good money for wind energy when it is not at all clear that they are benefiting from that energy? The answer may lie in a psychological sense of community with other wind-energy customers, according to a new study in the Journal of Public Policy & Marketing. The authors interviewed participants in a wind power program in the western United States. The goal was to understand in depth what ...

New Orleans, Louisiana - June 2, 2015 - Data confirms that there is transmission of fecal coliforms in communal bathrooms at Quinnipiac University and that toothbrushes can serve as a vector for transmission of potentially pathogenic organisms. This research is presented at the annual meeting of the American Society for Microbiology. "The main concern is not with the presence of your own fecal matter on your toothbrush, but rather when a toothbrush is contaminated with fecal matter from someone else, which contains bacteria, viruses or parasites that are not part of your ...

The impact of scary TV on children's wellbeing has been overstated, according to University of Sussex psychologists. While research has shown that a small minority of children can have extreme reactions to a scary programme or film, the researchers found that, overall, children show very little sign of increased anxiety, fear, sadness or sleep problems. University of Sussex research student, Laura Pearce, and Andy Field, Professor of Child Psychopathology at the University, reviewed all research into the topic carried out over the past 25 years. Their findings, ...

A scientific group from the Center for RNA Research within the Institute for Basic Science (IBS) and School of Biological Sciences in Seoul National University has reported an insightful molecular mechanism of how Microprocessor, the DROSHA-DGCR8 complex, precisely determines cleavage sites on miRNA-containing primary transcripts allowing faithful initiation of microRNA biogenesis. The group's findings, published in Cell on 28th May as Advance Online Publication, not only reveal the function of each part of human Microprocessor, but also outline future work on the molecular ...

Bariatric surgery does not only benefit the health of patients who undergo this weight loss procedure. It also leads to greater intimacy between them and their life partners, and adds a spark to their sex life. It's all in all a shared journey that brings partners closer together, says Mary Lisa Pories of East Carolina University in the US, lead author of a study providing insights into the experience of couples after one of the partners underwent weight loss surgery. The findings are published in Springer's journal Obesity Surgery. Bariatric surgery is the most effective ...

SALT LAKE CITY - Intermountain Healthcare is one of 150 organizations in the nation that was invited to the White House to help develop national policy to address the growing problem of the overuse of antibiotics. Intermountain has been studying this issue extensively for the past several years and is one the of leading healthcare organizations in the United States to research best practices to help curb the inappropriate use of antibiotics, which is contributing to the growing problem of resistant bacteria. Intermountain will participate in a one-day antibiotic stewardship ...

BOSTON - A new study from researchers at Beth Israel Deaconess Medical Center (BIDMC) suggests that risk factors for readmission change significantly over the course of the 30 days following hospital discharge. Thirty-day hospital readmission rates have become a federal quality metric intended to reflect inpatient quality of care and unnecessary health care utilization. Published today in the Annals of Internal Medicine, the research suggests that two distinct 8-day and 30-day readmission rates would serve as better inpatient quality measurements and would better inform ...

The scientific team, from the Institute for Basic Science (IBS) and Seoul National University, has developed an ultra-thin wearable quantum dot light emitting diodes (QLEDs). The electronic tattoo is based on current quantum dot light emitting diode (QLED) technology. Colloidal quantum dot (QLED's) have attracted great attention as next generation displays. The quantum dots (QDs) have unique properties such as the color tunability, photo/air stability, and are printability on various substrates. The device is paper thin and can be applied to human skin like a sticker. The ...

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