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'Cloaking' device uses ordinary lenses to hide objects across continuous range of angles

Cloaking device uses ordinary lenses to hide objects across continuous range of angles
2014-11-19
Inspired perhaps by Harry Potter's invisibility cloak, scientists have recently developed several ways--some simple and some involving new technologies--to hide objects from view. The latest effort, developed at the University of Rochester, not only overcomes some of the limitations of previous devices, but it uses inexpensive, readily available materials in a novel configuration. "There've been many high tech approaches to cloaking and the basic idea behind these is to take light and have it pass around something as if it isn't there, often using high-tech or exotic ...

It pays to have an eye for emotions

It pays to have an eye for emotions
2014-11-19
Attending to and caring about the emotions of employees and colleagues - that's for wimps, not for tough businesspeople and efficient performers, right? Wrong! An extensive international study has now shown: The "ability to recognize emotions" affects income. The corresponding author of the study is Professor Dr. Gerhard Blickle of the Department of Psychology at the University of Bonn. The results are published in the Journal of Organizational Behavior. "Although managing employees and dealing with people often involves reading their emotions and determining their moods, ...

Prehistoric landslide discovery rivals largest known on surface of Earth

Prehistoric landslide discovery rivals largest known on surface of Earth
2014-11-19
A catastrophic landslide, one of the largest known on the surface of the Earth, took place within minutes in southwestern Utah more than 21 million years ago, reports a Kent State University geologist in a paper being to be published in the November issue of the journal Geology. The Markagunt gravity slide, the size of three Ohio counties, is one of the two largest known continental landslides (larger slides exist on the ocean floors). David Hacker, Ph.D., associate professor of geology at the Trumbull campus, and two colleagues discovered and mapped the scope of the ...

Bacterial infections suppress protective immune response in neurodermatitis

2014-11-19
This news release is available in German. Because the skin and its function as a barrier are severely compromised in neurodermatitis patients, a large number of bacterial species are able to multiply - including the bacterium Staphylococcus aureus. Many patients have nearly 200-times as many S. aureus bacteria living on their skin as healthy individuals, resulting in frequent infections. Prof. Tilo Biedermann and his team at the Allergology and Dermatology Clinic of Klinikum rechts der Isar and the University of Tübingen have now shown in an animal model how these ...

'Aquatic osteoporosis' jellifying lakes

2014-11-19
A plague of "aquatic osteoporosis" is spreading throughout many North American soft-water lakes due to declining calcium levels in the water and hindering the survival of some organisms, says new research from Queen's University. Researchers from Queen's, working with colleagues from York University and the University of Cambridge, as well as other collaborators, have identified a biological shift in many temperate, soft-water lakes in response to declining calcium levels after prolonged periods of acid rain and timber harvesting. The reduced calcium availability is hindering ...

A gut reaction

2014-11-19
Queen's University biologist Virginia Walker and Queen's SARC Awarded Postdoctoral Fellow Pranab Das have shown nanosilver, which is often added to water purification units, can upset your gut. The discovery is important as people are being exposed to nanoparticles every day. Nanosilver is also used in biomedical applications, toys, sunscreen, cosmetics, clothing and other items. "We were surprised to see significant upset of the human gut community at the lowest concentration of nanosilver in this study," says Dr. Das. "To our knowledge, this is the first time anyone ...

Alzheimer's disease: Molecular signals cause brain cells to switch into a hectic state

2014-11-19
This news release is available in German. The research team also showed that the pathological changes of the astrocytes can be mitigated by pharmacological treatment. The triggering molecules turned out to be energy carriers of the cell such as ATP: These molecules can induce the astrocytes to switch into a hyperactive state, which is characterized by sudden fluctuations in the concentration of calcium. As the researchers describe in the scientific journal Nature Communications, their study suggests a novel potential approach for the treatment of Alzheimer's disease. In ...

Residential treatment may be first-line option for opioid-dependent young adults

2014-11-19
Residential treatment may be an appropriate first-line option for young adults who are dependent on opioid drugs - including prescription painkillers and heroin - that may result in higher levels of abstinence than does the outpatient treatment that is currently the standard of care. A study from the Massachusetts General Hospital (MGH) Center for Addiction Services found that a month-long, 12-step-based residential program with strong linkage to community-based follow-up care, enabled almost 30 percent of opioid-dependent participants to remain abstinent a year later. ...

Mindfulness techniques can help protect pregnant women against depression

2014-11-19
Pregnant women with histories of major depression are about 40 percent less likely to relapse into depression if they practice mindfulness techniques--such as meditation, breathing exercises and yoga--along with cognitive therapy, according to a new study led by the University of Colorado Boulder. About 30 percent of pregnant women who have struggled with depression in the past will again become depressed in the months before and after birth, according to past research. In the new study, published in the journal Archives of Women's Mental Health, the research team found ...

Study finds wide variation in quality, content of clinical cancer guidelines

2014-11-19
ANN ARBOR, Mich. -- What's the best way to treat rectal cancer? Consult any of five top clinical guidelines for rectal cancer and you will get a different answer, according to a new study by researchers at the University of Michigan Comprehensive Cancer Center. They looked at clinical practice guidelines for rectal cancer from five highly regarded organizations in the United States, Europe and Canada. The guidelines, which were all published within the last six years, were assessed for overall quality based on how they were developed. The tool used gives a percentage ...

As winter approaches, switching to cleaner heating oils could prevent health problems

2014-11-19
With temperatures dipping, homeowners are firing up their heaters. But systems that require heating oil release fine particles outside that could have harmful health effects. Regulations to curb these emissions in New York City, however, could save hundreds of lives, a new study has found. The report in the ACS journal Environmental Science & Technology may have ramifications for the entire northeast, the country's largest consumer of heating oil. Iyad Kheirbek and colleagues note that when some people breathe in fine particulate matter from the air, they suffer from ...

Fathers' engagement with baby depends on mother

2014-11-19
COLUMBUS, Ohio - Fathers' involvement with their newborns depends on mothers' preparation for parenthood, even for fathers who show the most parenting skills, a new study suggests. Researchers found that fathers who showed high levels of intuitive parenting were more involved than other fathers with their infants at 3 months of age - but only if the mothers showed lower levels of intuitive parenting. Intuitive parenting involves subtle, nonconscious behaviors -- like cooing and making eye contact with the baby - that have been shown to stimulate and engage infants. It ...

Suffering from constipation? Self-acupressure can help

2014-11-19
About 19 percent of North Americans suffer from constipation, with the digestive condition being more common among women, non-whites, people older than 60, those who are not physically active and the poor. The costs are significant. Hospital costs to treat the condition were estimated at $4.25 billion in 2010 alone. Constipation can also lead to depression, lower quality of life and a drop in work productivity. Treatments include use of laxatives, increased intake of dietary fiber and fluid, and exercise. But new research from the UCLA Center for East-West Medicine ...

Handheld ultrasound technology can help medical students improve their physical diagnosis

2014-11-19
A new study by researchers from Icahn School of Medicine at Mount Sinai found that training medical students to use a handheld ultrasound device can enhance the accuracy of their physical diagnosis. The study was presented November 18 at the American Heart Association's Scientific Sessions 2014. The study by Icahn School of Medicine at Mount Sinai included a 90-minute, personalized lesson for 64 second-year medical students in how to use handheld echocardiography technology, with a review of a 3D cardiac anatomy model, video images of normal echocardiograms, and the opportunity ...

Speedy heart transplant for kids better than waiting for perfect match

2014-11-19
Children who receive a heart transplant as soon as a suitable donor is available are predicted to have better quality-adjusted survival -- even if they have antibodies that may attack the new heart -- than children who wait for a donor to which they do not have antibodies according to research presented at the American Heart Association's Scientific Sessions 2014. When the costs of care while waiting for an urgent transplant are considered, transplantation with the first suitable heart is also cheaper than waiting for a better-matched organ, researchers said. In the ...

Surgeons use 3-D printed model of heart to treat patients with disorders

2014-11-19
An experimental 3-dimensional printed model of the heart may help surgeons treat patients born with complicated heart disorders, according to research presented at the American Heart Association's Scientific Sessions 2014. Most heart surgeons use 2D images taken by X-ray, ultrasound and MRI for surgical planning. However, these images may not reveal complex structural complications in the heart's chambers that occur when heart disease is present at birth (congenital heart defects), as opposed to developing later in life within a structurally normal heart. But with standard ...

Common blood pressure medication does not increase risk of breast cancer, study finds

2014-11-19
CHICAGO - Women who take a common type of medication to control their blood pressure are not at increased risk of developing breast cancer due to the drug, according to new study by researchers at the Intermountain Medical Center Heart Institute in Murray, Utah. Researchers analyzed the records of more than 3,700 women who had no history of breast cancer, and who had long-term use of calcium channel blocker medications to control their blood pressure. Researchers found only a minimal increase in risk in one study and a 50 percent reduced risk in a second, leading them ...

New app aims for rapid interventions and reduced mortality for infants with heart defects

New app aims for rapid interventions and reduced mortality for infants with heart defects
2014-11-19
Chicago, Ill. - November 19, 2014 - A powerful new app is directly connecting single ventricle heart defect patients to their doctors, dramatically improving their monitoring while they recover from heart surgery at home. Girish Shirali, MBBS, FACC, FASE, Co-Director of the Ward Family Heart Center at Children's Mercy Kansas City, will report today on how the technology is changing patient care at the American Heart Association Scientific Sessions 2014. The tablet-based app, called CHAMP (Cardiac High-Acuity Monitoring Program), is a more automated, accurate and simplified ...

Study shows rheumatoid arthritis support and education program has strong positive impact

2014-11-19
A study at Hospital for Special Surgery (HSS) finds that a support group addressing the psychological and educational needs of people recently diagnosed with rheumatoid arthritis (RA) has a strong positive impact on their lives. Ninety percent of participants indicated that as a result of the free group, they could make informed choices about their RA. The study findings were presented in the "Innovations in Rheumatologic Care" session at the American College of Rheumatology annual meeting on November 19 in Boston. "The Early RA Support and Education program, a part ...

How stress aids memory

2014-11-19
Retrieving memory content under stress does not work very well. However, stress can be helpful when it comes to saving new information -- especially those that are emotionally relevant in stressful situations. At the Ruhr-Universitat Bochum, a team of cognitive psychologists headed by Prof Dr Oliver T. Wolf study these correlations. The RUB's science magazine RUBIN reports on the results. Faked Job Interview Triggers Stress The team tested how well people remember items from a faked job interview that was conducted either in a friendly or a stress-triggering atmosphere ...

E-cigarettes significantly reduce tobacco cravings

2014-11-19
Electronic cigarettes offer smokers a realistic way to kick their tobacco smoking addiction. In a new study published in the International Journal of Environmental Research and Public Health, scientists at KU Leuven report that e-cigarettes successfully reduced cravings for tobacco cigarettes, with only minimal side effects. Electronic cigarettes (e-cigs) were developed as a less harmful alternative to tobacco cigarettes. They contain 100 to 1,000 times less toxic substances and emulate the experience of smoking a tobacco cigarette. In an 8-month study, the KU Leuven ...

Many Americans not receiving recommended home visit services for lead poisoning and asthma

2014-11-19
COLUMBIA, MD and WASHINGTON, DC (November 19, 2014) - Today, the National Center for Healthy Housing (NCHH) and Milken Institute School of Public Health at the George Washington University released Healthcare Financing of Healthy Homes Services: Findings from a 2014 Survey of State Reimbursement Policies, a report documenting current Medicaid reimbursement practices for environmental health services in the homes of lead-exposed children and people with asthma and highlighting opportunities for increasing access to these benefits. "ASTHO applauds NCHH and Milken Institute ...

A jettisoned black hole?

2014-11-19
In his general theory of relativity, Albert Einstein predicted that there are such things as gravitational waves. In fact, the very existence of these waves is the linchpin of the entire theory. Despite the great lengths that physicists have gone to in recent decades, however, they still have not managed to detect them directly with a measurement. This could largely be due to the fact that this requires a level of precision that it is practically impossible to achieve with today's measuring devices. Ultimately, it is all about measuring the tiniest of compressions and extensions ...

Giving LEDs a cozy, warm glow

Giving LEDs a cozy, warm glow
2014-11-19
WASHINGTON, Nov. 19, 2014--When the 2014 Nobel Prize in physics was awarded this October to three Japanese-born scientists for the invention of blue light emitting diodes (LEDs), the prize committee declared LED lamps would light the 21st century. Now researchers from the Netherlands have found a novel way to ensure the lights of the future not only are energy efficient but also emit a cozy warmth. "We demonstrated a seemingly simple - but in fact sophisticated - way to create LED lights that change in a natural way to a cozy, warm white color when dimmed," said Hugo ...

Can eating blueberries really help you see better in the dark?

2014-11-19
Blueberries are super stars among health food advocates, who tout the fruit for not only promoting heart health, better memory and digestion, but also for improving night vision. Scientists have taken a closer look at this latter claim and have found reason to doubt that the popular berry helps most healthy people see better in the dark. Their report appears in ACS' Journal of Agricultural & Food Chemistry. Wilhelmina Kalt and colleagues note that studies published decades ago provided the first hints that blueberries might improve people's night vision. Later lab experiments ...
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