NASA sees Nathan weakening near Darwin, Australia
2015-03-24
Tropical Cyclone Nathan has been weakening as it continued to move over land in Australia's Northern Territory on March 24. NASA's Aqua satellite captured a visible picture of the storm over land. Just one day before the Tropical Rainfall Measuring Mission satellite saw some heavy rainfall in Nathan.
The Tropical Rainfall Measuring Mission (TRMM) satellite captured rainfall rate and cloud height data when it passed above Nathan on March 23, 2015 at 0631 UTC (2:31 a.m. EDT) before Nathan moved inland. Nathan had intensified and had hurricane force winds of about 65 knots ...
Ultimate Fighting Championship should save heavyweight fights for pay per view
2015-03-24
COLUMBIA, Mo. - The Ultimate Fighting Championship (UFC), a mixed martial arts league, has experienced large growth in popularity and economic success in recent years. UFC has achieved this success by marketing to fans who attend live fighting events and who purchase Pay Per View (PPV) options to watch UFC events on television.
Now, a researcher at the University of Missouri has found that fans' interest in the sport and, thus, their desire to spend money differs based on the venue. Nicholas Watanabe, an assistant professor of sport management in the MU Department of ...
Children less likely to come to the rescue when others are available
2015-03-24
Children as young as 5 years old are less likely to help a person in need when other children are present and available to help, according to new research published in Psychological Science, a journal of the Association for Psychological Science.
"The children in our study helped at very high levels only when responsibility was clearly attributable to them," explains psychological scientist and lead researcher Maria Plötner of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. "These findings suggest that children at this age take responsibility ...
Quarantine yes/no?
2015-03-24
The recent Ebola outbreak highlighted the challenges to governments and local public health authorities in determining when individuals or populations should be subjected to quarantine. While one state or country can legally enact such laws, others may not. In many instances unintended negative consequences have resulted, and the ensuing chaos has led to major frustration both for patients and medical staff, as well as for local authorities.
Donna Barbisch, Institute for Global and Regional Readiness, and co-authors Kristi L. Koenig, UC Irvine, Center for Disaster Medical ...
Squeeze to remove heat: Elastocaloric materials enable more efficient, 'green' cooling
2015-03-24
WASHINGTON, D.C., March 24, 2015 -- Move over, vapor compression cooling technology. Emerging "elastocaloric" refrigeration is potentially much more efficient and, unlike vapor compression, relies on environmentally-friendly refrigerants.
In elastocaloric materials a change in mechanical stress can create a change in temperature.
In the Journal of Applied Physics, from AIP Publishing, a team of researchers from Technical University of Denmark report that the elastocaloric effect opens the door to alternative forms of solid-state refrigeration that are direct replacements ...
'Goldilocks material' could change spintronics
2015-03-24
WASHINGTON D.C., March 24, 2015 - Attempting to develop a novel type of permanent magnet, a team of researchers at Trinity College in Dublin, Ireland has discovered a new class of magnetic materials based on Mn-Ga alloys.
Described as a zero-moment half metal this week in the journal Applied Physics Letters, from AIP Publishing, the new Mn2RuxGa magnetic alloy has some unique properties that give it the potential to revolutionize data storage and significantly increase wireless data transmission speeds.
The discovery realizes a goal researchers have sought for several ...
Study compares outcomes for stent vs. medications for narrowed artery within the brain
2015-03-24
Among patients with symptomatic intracranial arterial stenosis (narrowing of an artery inside the brain), the use of a balloon-expandable stent compared with medical therapy (clopidogrel and aspirin) resulted in an increased of stroke or transient ischemic attack (TIA), according to a study in the March 24/31 issue of JAMA.
Intracranial arterial stenosis is a common cause of stroke worldwide. The recurrent stroke risk with severe symptomatic intracranial stenosis may be as high as 23 percent at 1 year, despite medical therapy, according to background information in the ...
Pay gap between male and female RNs has not narrowed
2015-03-24
An analysis of the trends in salaries of registered nurses (RNs) in the United States from 1988 through 2013 finds that male RNs outearned female RNs across settings, specialties, and positions, with no narrowing of the pay gap over time, according to a study in the March 24/31 issue of JAMA.
Fifty years after the Equal Pay Act, the male-female salary gap has narrowed in many occupations. Yet pay inequality persists for certain occupations, including medicine and nursing. Studies have documented higher salaries for male registered nurses, although analyses have not considered ...
Can perovskites and silicon team up to boost industrial solar cell efficiencies?
2015-03-24
WASHINGTON, D.C., March 24, 2015 - Silicon solar cells dominate 90 percent of the global photovoltaic market today, yet the record power conversion efficiency of silicon photovoltaics has progressed merely from 25 percent to 25.6 percent during the past 15 years -- meaning the industry is keen to explore alternatives.
A collaboration between the Massachusetts Institute of Technology (MIT) and Stanford University may be poised to shake things up in the solar energy world. By exploring ways to create solar cells using low-cost manufacturing methods, the team has developed ...
Norovirus candidate vaccine induces broad antibody responses in trial participants
2015-03-24
A multivalent candidate vaccine elicits broad antibody responses to a range of norovirus strains, including strains not included in the vaccine or previously encountered by participants, according to a new study published this week in PLOS Medicine. The results of the study, led by Lisa Lindesmith and Ralph Baric of the University of North Carolina at Chapel Hill, indicate that a vaccine to norovirus may be available in the future.
Worldwide, noroviruses cause one in five cases of viral gastroenteritis. An estimated annual 300 million cases of norovirus infection contribute ...
New kind of 'tandem' solar cell developed
2015-03-24
CAMBRIDGE, Mass--Researchers at MIT and Stanford University have developed a new kind of solar cell that combines two different layers of sunlight-absorbing material in order to harvest a broader range of the sun's energy. The development could lead to photovoltaic cells that are more efficient than those currently used in solar-power installations, the researchers say.
The new cell uses a layer of silicon -- which forms the basis for most of today's solar panels -- but adds a semi-transparent layer of a material called perovskite, which can absorb higher-energy particles ...
What is the definition of 'natural' foods? Consumers want to know
2015-03-24
After decades of debate there remains no generally accepted definition of a "natural" food product. Regulatory agencies have refused to settle the issue but may be under new pressure from consumer lawsuits, according to a new study in the Journal of Public Policy & Marketing.
"Consumers don't agree on a definition either, yet clearly believe that 'natural' is important," writes author Ross D. Petty (Babson College). "In 2009, 30% of newly launched foods claimed to be natural but by 2013 this dropped to 22%, possibly due to an increase in the number of consumer lawsuits. ...
Diabetics with ankle fractures have longer lengths of stay, more health care costs
2015-03-24
New research from NYU Langone orthopaedic surgeons finds patients with diabetes who fracture their ankle incur significantly more inpatient health care costs compared to patients who do not have diabetes.
The research, led by Kenneth A. Egol, MD, a professor and vice chair of education in the Department of Orthoapedic Surgery at NYU Langone, showed patients with diabetes who undergo ankle fracture surgery have significantly longer lengths of stay and total hospital charges compared to non-diabetics, with worse trends seen among patients with complicated disease.
NYU ...
New study indicates laparoscopic hysterectomy with morcellation may be safer than abdominal procedure
2015-03-24
Philadelphia, PA, March 24, 2015 - In a new study published in the American Journal of Obstetrics & Gynecology, researchers from The University of North Carolina at Chapel Hill compared the relative risks of laparoscopic hysterectomy (with morcellation) with abdominal surgery for hysterectomy in premenopausal women undergoing surgery for presumed uterine fibroids. Examining short- and long-term complications, quality of life, and overall mortality, they found that abdominal surgery carries a higher risk of complications, decreased quality of life, and death.
Hysterectomy ...
Higher volume of scoliosis surgeries linked to reduced reoperation rates
2015-03-24
Adolescent patients who need scoliosis surgery may benefit most from going to a hospital that performs a high volume of the procedures, according to new research from NYU Langone spine surgeons presented March 24 at the American Academy of Orthopaedic Surgeons 2015 Annual Meeting in Las Vegas.
Researchers looked at a New York State database of hospital discharges and identified 3,928 surgeries for adolescent idiopathic scoliosis, and found reoperation rates were significantly lower among surgeons who perform a high volume of the procedures.
Specifically, 14.1 percent ...
NIH researchers identify red blood cell traits associated with malaria risk in children
2015-03-24
WHAT:
Researchers at the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, have determined that certain red blood cell traits in children can increase or decrease their risk for malaria. The findings could help identify future targets for new malaria drugs and vaccines.
From 2008 to 2011, NIAID scientists and their collaborators followed 1,543 children ranging from 6 months to 17 years old in Mali, a West African country with a high incidence of childhood malaria. Throughout the study period, the children experienced a ...
Preparing for natural disasters: What policies protect the vulnerable consumer?
2015-03-24
Despite catastrophic earthquakes, the most vulnerable residents do not take steps to prepare themselves against future disaster, according to a new study in the Journal of Public Policy & Marketing. The authors provide an example from southern Spain.
"Spain's persistent economic crisis and unemployment rate suggest that many residents of southern Spain belong to this vulnerable segment," write authors Shintaro Okazaki (Universidad Autónoma de Madrid), Amadeo Benavent-Climent (University of Madrid), Angeles Navarro (Universidad de Murcia), and Jörg Henseler (University ...
Use your real name: Online communication details that affect sales
2015-03-24
Online word-of-mouth communications are having a significant effect on product sales, yet research to date has failed to understand why that effect fluctuates, according to a new study in the Journal of Marketing.
"Previous investigation into online communications had focused on product reviews, but it was clear that far more information was needed," write authors Ya You (College of Charleston), Gautham G. Vadakkepatt (George Mason University), and Amit M. Joshi (University of Central Florida). "The current study hypothesized that additional platforms such as blogs, ...
High-energy TV commercials: Too much stress for consumers?
2015-03-24
Consumers are tuning out TV commercials, making advertisers run louder, higher-energy ads to force their attention. This may be backfiring critically when consumers are watching sad or relaxing shows, according to a new study in the Journal of Marketing.
"This research stands to fundamentally change the ways advertisers approach the use of commercials," write authors Nancy M. Puccinelli (Oxford University), Keith Wilcox (Columbia University), and Dhruv Grewal (Babson College). "Firms will realize substantially greater success if they use moderately energetic commercials ...
Women with diabetes more likely to be diagnosed with advanced stage breast cancer
2015-03-24
TORONTO, March 24, 2015 -- Diabetes is associated with more advanced stage breast cancer, according to a new study by the Institute for Clinical Evaluative Sciences (ICES) and Women's College Hospital.
The findings, published today in the journal Breast Cancer Research and Treatment, confirm a strong link between diabetes and later stage breast cancer at diagnosis for Canadian women.
"Our findings suggest that women with diabetes may be predisposed to more advanced stage breast cancer, which may be a contributor to their higher cancer mortality," said Dr. Lorraine ...
Enriching the diet of calves by using flax seeds improves nutritional quality
2015-03-24
How can beef be made healthier for consumption purposes? This question has been answered by Inmaculada Gómez-Bastida in her PhD thesis, read at the NUP/UPNA-University of Navarre. When ingredients rich in n-3 polyunsaturated fatty acids, like flax seeds, and CLA (Conjugated Linoleic Acid) were added to the food of these animals, their fat was modified, achieving an increase in omega-3 fatty acids and CLA -regarded as being beneficial for health- and a reduction in saturated fatty acids linked to cardiovascular disease.
"Adding flax seeds and CLA to the diet of calves," ...
How our DNA may prevent bowel cancer
2015-03-24
The link between taking aspirin, and similar medications called non-steroidal anti-inflammatory drugs (or NSAIDS), and bowel (colorectal) cancer prevention is well established.
However, the mechanisms behind the protective effect have not been understood and it is not known why some people appear to benefit while others do not.
Conducted by investigators from four countries, including Professors Mark Jenkins and John Hopper from the University of Melbourne, the findings suggest this protection differs according to variations in DNA.
"We've known for a long time ...
New membranes deliver clean water more efficiently
2015-03-24
Published recently in the journal Advanced Materials, the new membranes will supply clean water for use in desalination and water purification applications.
Sandra Kentish, Professor in the Department of Chemical and Biomolecular Engineering said that up until now, there has not been a way to add chlorinating agents to water to prevent biological growth in the desalination process.
"Such biofouling has been a major issue to date, but the new membranes have the potential to lead to a more economic desalination operation," she said.
For Professor Kentish, the availability ...
A vineyard's soil microbes shape the grapes' microbial community
2015-03-24
WASHINGTON, DC -- March 24, 2015--In the first study of an entire wine grapevine's microbiome, researchers have found that the microbes associated with the grapes, leaves and flowers are largely derived from the soil microbes found around the plant's roots. The findings, published in mBio the online open-access journal of the American Society for Microbiology, could help dissect how microbes affect a wine's properties and pave the way for biotechnological advances for producing hardier crops.
"Growers have been sub-selecting the best regions to grow grapes over thousands ...
Malaria-infected cells produce odors attractive to mosquitoes
2015-03-24
WASHINGTON, DC - March 24, 2015- The malaria parasite Plasmodium falciparum produces chemical compounds called terpenes that give off odors that attract mosquitoes, according to new research. The study, published this week in mBio®, the online open-access journal of the American Society for Microbiology, might explain why the insects are more likely to bite humans or animals infected with the organism.
The work could lead to new diagnostic tests for malaria, said senior study author Audrey R. Odom, MD, PhD, an assistant professor of pediatrics and of molecular microbiology ...
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