Frontiers news briefs: July 30
2013-07-31
Frontiers in Psychology
Cross-cultural communication of emotional non-speech sounds
Try to remember the last time that you inferred that another person was in an emotional state of mind – chances are that it was the sounds that he or she made that provided the clues. Emotional non-speech sounds (such as crying, hums, laughter, and sighs) are often considered an especially primitive form of emotional communication that in many ways resembles animal expressions more than human speech. But, this intriguing form of emotional signaling has received little attention from ...
A new model can predict a woman's risk of breast, ovarian and womb cancer
2013-07-31
The probability (absolute risk) of a woman developing breast, ovarian, and endometrial (womb) cancer can all be predicted using easily obtainable information on known risk factors for these cancers, according to a study by US researchers published in this week's PLOS Medicine.
Ruth Pfeiffer from the National Cancer Institute in Bethesda, USA and colleagues from institutions throughout the US, developed statistical models based on risk factors of these three common cancers that could help with clinical decision making.
The authors developed these models by using information ...
Reducing drug costs for patients could improve outcomes for high blood pressure
2013-07-31
Expanding health insurance coverage and reducing drug costs that are paid by patients (drug co-payments) in countries without universal free healthcare, such as the United States, may improve the treatment, and control of high blood pressure (hypertension, a condition which affects one billion people worldwide and leads to 7.5 million deaths), according to a study by UK and Canadian researchers published in this week's PLOS Medicine.
Will Maimaris from the London School of Hygiene & Tropical Medicine and colleagues from the Population Health Research Institute and McMaster ...
Cardiovascular risk in type 2 diabetics with dangerously low blood sugar levels
2013-07-31
Type 2 diabetics who have severe hypoglycaemia are at higher risk of cardiovascular disease, a paper published today on bmj.com suggests.
Severe hypoglycaemia is a condition where there is an abnormally low content of sugar in the blood. It is often classed as a medical emergency.
Severe hypoglycaemia is a potential risk factor for cardiovascular disease in patients with type 2 diabetes and recent clinical trials have failed to demonstrate a beneficial effect of intensive glucose control on overall CVD events.
Although observational studies have reported a positive ...
Increased fluctuation in blood pressure linked to impaired cognitive function in older people
2013-07-31
Higher variability in visit-to-visit blood pressure readings, independent of average blood pressure, could be related to impaired cognitive function in old age in those already at high risk of cardiovascular disease, suggests a paper published today on bmj.com.
There is increasing evidence that vascular factors contribute in development and progression of dementia. This is of special interest as cardiovascular factors may be amendable and thus potential targets to reduce cognitive decline and the incidence of dementia. Visit-to-visit blood pressure variability has been ...
NHS patient information leaflets are 'inaccurate, inconsistent and confusing'
2013-07-31
The NHS's patient information leaflets are "inaccurate, inconsistent, and confusing – and effort is duplicated" argues GP Margaret McCartney on bmj.com.
In a feature published today, Dr McCartney says the NHS is "awash" with patient information and with many trusts commissioning leaflets from external companies and others writing their own, it is difficult to know how efficient and effective these leaflets are.
In a personal view, Dr McCartney says the NHS is "awash" with patient information and with many trusts commissioning leaflets from external companies and others ...
New definition of chronic kidney disease labels 1 in 8 adults as sick
2013-07-31
A new definition of chronic kidney disease labels over 1 in 8 adults and around half of people over 70 years of age as having the disease. Yet low rates of kidney failure suggest many of those diagnosed will never progress to severe disease.
On bmj.com today, Ray Moynihan and colleagues argue this is evidence of overdiagnosis. They call for a re-examination of the definition and urge clinicians to be cautious about labelling patients, particularly older people.
This article is the second of a series looking at the risks and harms of overdiagnosis in a range of common ...
Aquatic playground can turn water tanks into fish schools
2013-07-31
Raising fish in tanks that contain hiding places and other obstacles can make the fish both smarter and improve their chances of survival when they are released into the wild, according to an international team of researchers.
"It's a key problem in that we are very good at rearing fish, but we're really not very good at releasing those animals in the wild such that they survive," said Victoria Braithwaite, professor of fisheries and biology, Penn State. "There's a mismatch between the way we raise them and the real world."
Juvenile Atlantic salmon raised in tanks ...
Controlling contagion by restricting mobility
2013-07-31
In an epidemic or a bioterrorist attack, the response of government officials could range from a drastic restriction of mobility — imposed isolation or total lockdown of a city — to moderate travel restrictions in some areas or simple suggestions that people remain at home. Deciding to institute any measure would require officials to weigh the costs and benefits of action, but at present there's little data to guide them on the question of how disease spreads through transportation networks.
However, a new MIT study comparing contagion rates in two scenarios — with and ...
New approach to treating venomous snakebites could reduce global fatalities
2013-07-31
SAN FRANCISCO (July 30, 2013) – A team of researchers led by Dr. Matt Lewin of the California Academy of Sciences, in collaboration with the Department of Anesthesia at the University of California, San Francisco, has pioneered a novel approach to treating venomous snakebites—administering antiparalytics topically via a nasal spray. This new, needle-free treatment may dramatically reduce the number of global snakebite fatalities, currently estimated to be as high as 125,000 per year. The team demonstrated the success of the new treatment during a recent experiment conducted ...
Lawrence Livermore engineering team makes breakthrough in solar energy research
2013-07-31
LIVERMORE, Calif. – The use of plasmonic black metals could someday provide a pathway to more efficient photovoltaics (PV) --- the use of solar panels containing photovoltaic solar cells --- to improve solar energy harvesting, according to researchers at Lawrence Livermore National Laboratory (LLNL).
The LLNL Materials Engineering Division (MED) research team has made breakthroughs experimenting with black metals. These nanostructured metals are designed to have low reflectivity and high absorption of visible and infrared light. The MED research team recently published ...
Myanmar at the crossroads: Conservationists see opportunities and challenges in biodiversity hotspot
2013-07-31
Long isolated by economic and political sanctions, Myanmar returns to the international community amid high expectations and challenges associated with protecting the country's great natural wealth from the impacts of economic growth and climate change.
In a new study, scientists from the Wildlife Conservation Society have examined the implications of economic development and climatic changes on conserving Myanmar's biodiversity and provide recommendations for conservation planning within a context of a changing climate by strengthening the protected area system and ...
Rensselaer researchers identify cause of LED 'efficiency droop'
2013-07-31
Troy, N.Y. – Rensselaer Polytechnic Institute researchers have identified the mechanism behind a plague of LED light bulbs: a flaw called "efficiency droop" that causes LEDs to lose up to 20 percent of their efficiency as they are subjected to greater electrical currents. Efficiency droop, first reported in 1999, has been a key obstacle in the development of LED lighting for situations, like household lighting, that call for economical sources of versatile and bright light.
In a paper recently published in Applied Physics Letters, the researchers identify a phenomena ...
Reprogramming patients' cells offers powerful new tool for studying, treating blood diseases
2013-07-31
First produced only in the past decade, human induced pluripotent stem cells (iPSCs) are capable of developing into many or even all human cell types. In new research, scientists reprogrammed skin cells from patients with rare blood disorders into iPSCs, highlighting the great promise of these cells in advancing understanding of those challenging diseases—and eventually in treating them.
"The technology for generating these cells has been moving very quickly," said hematologist Mitchell J. Weiss, M.D., Ph.D., corresponding author of two recent studies led by The Children's ...
American Chemical Society podcast: Cotton is an eco-friendly way to clean up oil spills
2013-07-31
The latest episode in the American Chemical Society's (ACS') award-winning Global Challenges/Chemistry Solutions podcast series describes a report demonstrating that unprocessed, raw cotton has an amazing ability to sop up oil while also being eco-friendly.
Based on a report by Seshadri Ramkumar, Ph.D., in the ACS journal Industrial & Engineering Chemistry Research, the new podcast is available without charge at iTunes and from http://www.acs.org/globalchallenges.
In light of the 2010 Deepwater Horizon disaster, Ramkumar notes that a particular need exists for oil-spill ...
Cracking how life arose on earth may help clarify where else it might exist
2013-07-31
Does life exist elsewhere or is our planet unique, making us truly alone in the universe? Much of the work carried out by NASA, together with other research institutions, is aimed at trying to come to grips with this question.
A novel and potentially testable theory of how life arose on earth, first advanced more than 25 years ago by Michael Russell, a research scientist in Planetary Chemistry and Astrobiology at the NASA Jet Propulsion Laboratory, was further developed in a recent paper published in Philosophical Transactions of the Royal Society B (PTRSL-B)—the world's ...
Study finds evidence of nerve damage in around half of fibromyalgia patients
2013-07-31
About half of a small group of patients with fibromyalgia – a common syndrome that causes chronic pain and other symptoms – was found to have damage to nerve fibers in their skin and other evidence of a disease called small-fiber polyneuropathy (SFPN). Unlike fibromyalgia, which has had no known causes and few effective treatments, SFPN has a clear pathology and is known to be caused by specific medical conditions, some of which can be treated and sometimes cured. The study from Massachusetts General Hospital (MGH) researchers will appear in the journal Pain and has been ...
Sequestration and fuel reserves
2013-07-31
A technique for trapping the greenhouse gas carbon dioxide deep underground could at the same be used to release the last fraction of natural gas liquids from ailing reservoirs, thus offsetting some of the environmental impact of burning fossil fuels. So says a paper to be published in the peer-reviewed International Journal of Oil, Gas and Coal Technology.
While so-called "fracking" as a method for extracting previously untapped fossil fuel reserves has been in the headlines recently, there are alternatives to obtaining the remaining quantities of hydrocarbons from gas/condensate ...
Santa's workshop not flooded -- but lots of melting in the Arctic
2013-07-31
Santa's workshop at the North Pole is not under water, despite recent reports. A dramatic image captured by a University of Washington monitoring buoy reportedly shows a lake at the North Pole. But Santa doesn't yet need to buy a snorkel.
"Every summer when the sun melts the surface the water has to go someplace, so it accumulates in these ponds," said Jamie Morison, a polar scientist at the UW Applied Physics Laboratory and principal investigator since 2000 of the North Pole Environmental Observatory. "This doesn't look particularly extreme."
After media coverage in ...
Simulations aiding study of earthquake dampers for structures
2013-07-31
Writer: Emil Venere, (765) 494-4709, venere@purdue.edu
Sources: Shirley Dyke, 765-494-7434, sdyke@purdue.edu
Related Web sites:
NEES: http://www.nees.org
PHOTO CAPTION:
Earthquake-engineering researches at the Harbin Institute of Technology in China work to set up a structure on a shake table for experiments to study the effects of earthquakes. Purdue University civil engineering students are working with counterparts at the institute to study the reliability of models for testing a type of powerful damping system that might be installed in buildings and bridges ...
Planetary 'runaway greenhouse' more easily triggered, research shows
2013-07-31
It might be easier than previously thought for a planet to overheat into the scorchingly uninhabitable "runaway greenhouse" stage, according to new research by astronomers at the University of Washington and the University of Victoria published July 28 in the journal Nature Geoscience.
In the runaway greenhouse stage, a planet absorbs more solar energy than it can give off to retain equilibrium. As a result, the world overheats, boiling its oceans and filling its atmosphere with steam, which leaves the planet glowing-hot and forever uninhabitable, as Venus is now.
One ...
Learning from a virus: Keeping genes under wraps
2013-07-31
An international collaboration of researchers including Felicia Goodrum of the University of Arizona's immunobiology department has studied how a human herpes virus carried by the majority of the population packages its genetic information during infection.
The discoveries improve the chances of developing more targeted therapies in place of existing drugs, which do not always work or come with side effects.
Experts estimate that 60 to 90 percent of the world's population carry the human cytomegalovirus, or CMV, which is one of the eight herpes viruses that infect humans.
In ...
NASA sees little rainfall in Tropical Depression Flossie
2013-07-31
Tropical Storm Flossie weakened as it interacted with the Hawaiian Islands and became a depression. NASA's TRMM satellite saw mostly light rain and one isolated area of heavy rainfall within the storm after it weakened. All watches and warnings were dropped for the Hawaiian Islands on July 30.
The Tropical Rainfall Measuring Mission, or TRMM, satellite flew over Flossie on July 30 at 07:17 UTC (3:17 a.m. EDT) and saw a small area of heavy rain west of the center of circulation. TRMM data showed that the rest of Flossie's rainfall was light to moderate. TRMM is managed ...
Satellite shows ex-Tropical Storm Dorian's remnants elongated
2013-07-31
Former Tropical Storm Dorian has been hanging around the Caribbean Sea for a couple of days, and appears stretched out on satellite imagery.
NOAA's GOES-13 satellite has been capturing images of the movement of Dorian since it was born. NASA's GOES Project at the NASA Goddard Space Flight Center in Greenbelt, Md. created an image of the storm using GOES-13 satellite data on July 30 at 1415 UTC/10:15 a.m. EDT. Dorian's remnants appear elongated from north to south on the GOES-13 image. The showers and thunderstorms are disorganized and extend a few hundred miles east ...
Printing silver onto fibers could pave the way for flexible, wearable electronics
2013-07-31
A new technique for depositing silver onto clothing fibres could open up huge opportunities in wearable electronics.
Scientists at the National Physical Laboratory (NPL), the UK's National Measurement Institute, have developed a way to print silver directly onto fibres. This new technique could make integrating electronics into all types of clothing simple and practical. This has many potential applications in sports, health, medicine, consumer electronics and fashion.
Most current plans for wearable electronics require weaving conductive materials into fabrics, which ...
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