U Alberta researchers move Barkhausen Effect forward
2013-01-18
(Edmonton) Almost 100 years after the initial discovery, a team of scientists at the University of Alberta and the National Institute for Nanotechnology in Edmonton have harnessed the Barkhausen Effect as a new kind of high-resolution microscopy for the insides of magnetic materials.
The researchers say the technique has the potential to provide critical information as a rapid prototyper for magnetic computational devices that expand the role of magnetism within computers.
In 1919, Barkhausen discovered the first evidence of magnetic domains (patterns in how the directions ...
Doubling down on energy efficiency
2013-01-18
Spending on energy efficiency programs funded by electric and natural gas utility customers will double by 2025 to about $9.5 billion per year, according to projections published today by researchers at Lawrence Berkeley National Laboratory (Berkeley Lab).
These funds, which come from a charge on utility bills, historically constitute the nation's largest source of spending on programs to foster the adoption of more efficient products and buildings. According to the Berkeley Lab report, energy efficiency programs funded by utility customers are projected to continue ...
Novel sensor provides bigger picture
2013-01-18
DURHAM, N.C. – Duke University engineers have developed a novel sensor that is more efficient, versatile and cheaper for potential use in such applications as airport security scanners and collision avoidance systems for aircraft, cars or maritime vessels.
The researchers fabricated a unique material, known as a metamaterial, that acts as a lens to image scenes using fewer components than conventional detectors. Because of the properties of this man-made material, much of the additional equipment needed for conventional detector systems – like lenses, mechanical positioners ...
Irregular heart beat elevates risk of kidney failure
2013-01-18
Many people who suffer from chronic kidney disease progressively lose their kidney function over time and eventually develop a condition called end-stage renal disease – the complete failure of the kidneys – placing them in need of lifelong dialysis or a kidney transplant.
Now researchers at the University of California, San Francisco (UCSF) and the Kaiser Permanente Northern California Division of Research have found that the risk of kidney failure is greater for people with chronic kidney disease who also have atrial fibrillation, one of the most common forms of irregular ...
Power's punishing impact
2013-01-18
Often, employees are shocked by what they think is a supervisor's severe reaction to a subordinate's seemingly minor transgression. The supervisors who punish them seem to be so absolutely sure that they are doing the right thing—they have a clear sense of purpose and there are no arguments to sway them.
New research by Scott Wiltermuth, a USC Marshall School of Business assistant professor of management and organization, and co-author Francis Flynn of the Stanford Graduate School of Business, found that providing a sense of power to someone instills a black-and-white ...
Mayo Clinic researchers identify enzyme involved in deadly brain tumors
2013-01-18
ROCHESTER, Minn. -- One of the most common types of brain tumors in adults, glioblastoma multiforme, is one of the most devastating. Even with recent advances in surgery, radiation and chemotherapy, the aggressive and invasive tumors become resistant to treatment, and median survival of patients is only about 15 months. In a study published in Neuro-Oncology, researchers at Mayo Clinic identify an important association between the naturally occurring enzyme Kallikrein 6, also known as KLK6, and the malignant tumors.
"Our study of Kallikrein 6 showed that higher levels ...
Botox beats steroids for painful foot condition, plantar fasciitis
2013-01-18
Los Angeles, CA (January 17, 2013) - Plantar fasciitis is the most frequent cause of chronic heel pain, leaving many sufferers unable to put their best foot forward for months at a time. Now a Mexican study suggests that physicians should turn to Botox rather than steroids to offer patients the fastest road to recovery. The research appears in the journal Foot & Ankle International, published by SAGE.
Plantar fasciitis results when connective tissues on the sole of the foot, the plantar fascia, become painfully inflamed. Physicians may suggest various therapies for this ...
Questions about biosafety? Ask a biosafety expert
2013-01-18
WASHINGTON— The rapid decline in costs associated with many common laboratory techniques, such as DNA sequencing and synthesis, has led to their adoption by individuals outside of traditional university or industrial settings, giving rise to a rapidly growing Do-It-Yourself Biology (DIYbio) community.
DIYbio.org and the Synthetic Biology Project at the Woodrow Wilson Center this week are launching the "Ask a Biosafety Expert" service in order to provide this emerging DIYbio community with free and timely access to professional biosafety advice. The project comes amidst ...
Why wolves are forever wild, but dogs can be tamed
2013-01-18
AMHERST, Mass. – Dogs and wolves are genetically so similar, it's been difficult for biologists to understand why wolves remain fiercely wild, while dogs can gladly become "man's best friend." Now, doctoral research by evolutionary biologist Kathryn Lord at the University of Massachusetts Amherst suggests the different behaviors are related to the animals' earliest sensory experiences and the critical period of socialization. Details appear in the current issue of Ethology.
Until now, little was known about sensory development in wolf pups, and assumptions were usually ...
Health and law expert: NFL not alone in handling concussions as 'benign' problems
2013-01-18
INDIANAPOLIS -- More than 2,000 former football players are suing the National Football League, saying the league should have taken action earlier to deal with injuries related to concussions more seriously.
But if a lack of speed in tackling concussions warrants criticism, the NFL isn't the only player deserving a penalty, according to a study co-authored by health care and law expert David Orentlicher, who teaches at Indiana University Robert H. McKinney School of Law in Indianapolis.
Neurologists were also slow in sounding the alarm, and for decades, concussions ...
New study challenges links between day care and behavioral issues
2013-01-18
CHESTNUT HILL, MA (Jan. 17, 2013) – A new study that looked at more than 75,000 children in day care in Norway found little evidence that the amount of time a child spends in child care leads to an increase in behavioral problems, according to researchers from the United States and Norway.
Several prior studies in the U.S. made connections between the time a child spends in day care and behavioral problems, but the results from Norway contradict those earlier findings, the researchers report in the online version of the journal Child Development.
"In Norway, we do not ...
Study findings have potential to prevent,reverse disabilities in children born prematurely
2013-01-18
PORTLAND, Ore. – Physician-scientists at Oregon Health & Science University Doernbecher Children's Hospital are challenging the way pediatric neurologists think about brain injury in the pre-term infant. In a study published online in the Jan. 16 issue of Science Translational Medicine, the OHSU Doernbecher researchers report for the first time that low blood and oxygen flow to the developing brain does not, as previously thought, cause an irreversible loss of brain cells, but rather disrupts the cells' ability to fully mature. This discovery opens up new avenues for potential ...
Want to ace that interview? Make sure your strongest competition is interviewed on a different day
2013-01-18
Whether an applicant receives a high or low score may have more to do with who else was interviewed that day than the overall strength of the applicant pool, according to new research published in Psychological Science, a journal of the Association for Psychological Science.
Drawing on previous research on the gambler fallacy, Uri Simonsohn of The Wharton School of the University of Pennsylvania and Francesca Gino of Harvard Business School hypothesized that admissions interviewers would have a difficult time seeing the forest for the trees. Instead of evaluating applicants ...
In minutes a day, low-income families can improve their kids' health
2013-01-18
URBANA – When low-income families devote three to four extra minutes to regular family mealtimes, their children's ability to achieve and maintain a normal weight improves measurably, according to a new University of Illinois study.
"Children whose families engaged with each other over a 20-minute meal four times a week weighed significantly less than kids who left the table after 15 to 17 minutes. Over time, those extra minutes per meal add up and become really powerful," said Barbara H. Fiese, director of the U of I's Family Resiliency Program.
Childhood obesity ...
Understanding personality for decision-making, longevity, and mental health
2013-01-18
January 17, 2013 – New Orleans – Extraversion does not just explain differences between how people act at social events. How extraverted you are may influence how the brain makes choices – specifically whether you choose an immediate or delayed reward, according to a new study. The work is part of a growing body of research on the vital role of understanding personality in society.
"Understanding how people differ from each other and how that affects various outcomes is something that we all do on an intuitive basis, but personality psychology attempts to bring scientific ...
World's most complex 2-D laser beamsteering array demonstrated
2013-01-18
Most people are familiar with the concept of RADAR. Radio frequency (RF) waves travel through the atmosphere, reflect off of a target, and return to the RADAR system to be processed. The amount of time it takes to return correlates to the object's distance. In recent decades, this technology has been revolutionized by electronically scanned (phased) arrays (ESAs), which transmit the RF waves in a particular direction without mechanical movement. Each emitter varies its phase and amplitude to form a RADAR beam in a particular direction through constructive and destructive ...
NASA beams Mona Lisa to Lunar Reconnaissance Orbiter at the moon
2013-01-18
VIDEO:
NASA Goddard scientists transmitted an image of the Mona Lisa from Earth to the Lunar Reconnaissance Orbiter at the moon by piggybacking on laser pulses that routinely track the spacecraft.
HD...
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As part of the first demonstration of laser communication with a satellite at the moon, scientists with NASA's Lunar Reconnaissance Orbiter (LRO) beamed an image of the Mona Lisa to the spacecraft from Earth.
The iconic image traveled ...
Titan gets a dune 'makeover'
2013-01-18
Titan's siblings must be jealous. While most of Saturn's moons display their ancient faces pockmarked by thousands of craters, Titan – Saturn's largest moon – may look much younger than it really is because its craters are getting erased. Dunes of exotic, hydrocarbon sand are slowly but steadily filling in its craters, according to new research using observations from NASA's Cassini spacecraft.
"Most of the Saturnian satellites – Titan's siblings – have thousands and thousands of craters on their surface. So far on Titan, of the 50 percent of the surface that we've seen ...
Stroke survivors with PTSD more likely to avoid treatment
2013-01-18
New York, NY — A new survey of stroke survivors has shown that those with post-traumatic stress disorder (PTSD) are less likely to adhere to treatment regimens that reduce the risk of an additional stroke. Researchers found that 65 percent of stroke survivors with PTSD failed to adhere to treatment, compared with 33 percent of those without PTSD. The survey also suggests that nonadherence in PTSD patients is partly explained by increased ambivalence toward medication. Among stroke survivors with PTSD, approximately one in three (38 percent) had concerns about their medications. ...
Severity of emphysema predicts mortality
2013-01-18
Severity of emphysema, as measured by computed tomography (CT), is a strong independent predictor of all-cause, cardiovascular, and respiratory mortality in ever-smokers with or without chronic obstructive pulmonary disease (COPD), according to a study from researchers in Norway. In patients with severe emphysema, airway wall thickness is also associated with mortality from respiratory causes.
"Ours is the first study to examine the relationship between degree of emphysema and mortality in a community-based sample and between airway wall thickness and mortality," said ...
Researchers find that simple blood test can help identify trauma patients at greatest risk of death
2013-01-18
SALT LAKE CITY – A simple, inexpensive blood test performed on trauma patients upon admission can help doctors easily identify patients at greatest risk of death, according to a new study by researchers at Intermountain Medical Center in Salt Lake City.
The Intermountain Medical Center research study of more than 9,500 patients discovered that some trauma patients are up to 58 times more likely to die than others, regardless of the severity of their original injuries.
Researchers say the study findings provide important insight into the long-term prognosis of trauma ...
UGA researchers invent new material for warm-white LEDs
2013-01-18
Athens, Ga. – Light emitting diodes, more commonly called LEDs, are known for their energy efficiency and durability, but the bluish, cold light of current white LEDs has precluded their widespread use for indoor lighting.
Now, University of Georgia scientists have fabricated what is thought to be the world's first LED that emits a warm white light using a single light emitting material, or phosphor, with a single emitting center for illumination. The material is described in detail in the current edition of the Nature Publishing Group journal "Light: Science and Applications."
"Right ...
Foreclosures in Florida on the Rise
2013-01-18
Foreclosures in Florida on the rise
The rate of foreclosures across the nation has dropped. RealtyTrac, a real-estate research group that studies foreclosures across the country, reports that the national rate dropped by 16 percent between September of 2011 and September of 2012. Unfortunately, the housing market in Florida is not following this trend.
According to the report, Florida continues to see high increases in foreclosure activity. The most recent statistic puts Florida at a 24 percent increase; resulting in the eleventh month in a row the state reported ...
Texas Supreme Court Clarifies Age Discrimination Law
2013-01-18
Texas Supreme Court Clarifies Age Discrimination Law
A south Texas school district secretary attempted to file an age discrimination claim earlier this summer, claiming that she was fired due to her age. However, the replacement employee was actually older by four years than the secretary herself. The secretary was 48-years-old at the time of her firing.
Texas law had not yet established whether an age discrimination case should be thrown out on the basis that a replacement employee is older than the employee who was terminated. Other jurisdictions have varied in ...
Refusing a DUI test in Connecticut
2013-01-18
Refusing a DUI test in Connecticut
It is important to know your rights if you are pulled over for a DUI. If an officer suspects you for driving under the influence, he or she can ask you take a blood, breath or urine test to determine your blood alcohol content. But you do have the option to refuse. You may wonder what happens if you refuse to take these tests.
Testing and arrest
An officer can ask you to take the test to determine your blood alcohol content if he or she has probable cause to think you are driving under the influence. Then, the test must be taken ...
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