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Science News for November 13, 2012


'Dirty money' affects spending habits, new study finds

A new study found that currency's physical appearance dramatically affects consumer behaviour, with people preferring to spend dirty, crumpled currency in social situations. The researchers' findings challenge long-held beliefs about the value of money and suggest that it can be a part of conspicuous consumption.

SourceUniversity of Guelph·JournalJournal of Consumer Research·DateNov 13, 2012

Injectable sponge delivers drugs, cells, and structure

Researchers at Harvard University have developed a biocompatible gel-based sponge that can be molded to any shape, loaded with drugs or stem cells, and delivered via injection. The sponge pops back to its original shape once inside the body, gradually releasing its cargo before safely degrading.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateNov 13, 2012

A safer porn policy for employers

A recent study by Craig Cameron highlights the need for robust policies on workplace pornography to protect employees from sexual harassment and discrimination. The study identifies five primary methods of employee participation with pornography, emphasizing the importance of creating a safe work environment.

SourceInderscience Publishers·JournalInternational Journal of Technology Policy and Law·DateNov 13, 2012

Games may help train analysts to overcome bias

Researchers at Penn State used scenario-based games to detect confirmation bias in intelligence analysts. The study found that teams trained in considering alternative hypotheses outperformed others in identifying perpetrators and targets. The game was designed to mimic real-life situations faced by U.S. intelligence analysts in Iraq.

Matching brands: Why do consumers prefer Tostitos salsa with Tostitos tortilla chips?

A new study in the Journal of Consumer Research found that consumers enjoy Tostitos salsa with Tostitos tortilla chips more when told they come from the same brand. The authors conclude that matching brands can enhance joint consumption experiences and provide an advantage for companies offering complementary products.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateNov 13, 2012

Doubling down against diabetes

Researchers have engineered natural gut peptides to carry small steroids, improving insulin secretion, blood glucose, and body weight in mice. The study's findings suggest a potential breakthrough in treating type 2 diabetes and metabolic syndrome, with minimal risk of estrogen-related side effects.

SourceTechnical University of Munich (TUM)·JournalNature Medicine·DateNov 13, 2012

Study demonstrates that earlier end of life care discussions are linked to less aggressive care in final days of life

A study published in the Journal of Clinical Oncology found that earlier end-of-life care discussions are associated with less aggressive care and increased use of hospice care for patients with advanced cancer. Initiating these discussions before the last month of life allows patients to make informed decisions about their care.

SourceAmerican Society of Clinical Oncology·JournalJournal of Clinical Oncology·DateNov 13, 2012

MRSA outbreak mapped by DNA sequencing

Researchers used DNA sequencing to map an MRSA outbreak in a special care baby unit, tracking its spread into the community. The technique allowed for quicker identification and isolation of outbreaks, containing the infection and preventing substantial illness.

SourceThe Lancet_DELETED·JournalThe Lancet Infectious Diseases·DateNov 13, 2012

Research strengthens link between obesity and dental health in homeless children

A recent study published in Journal of Pediatric Health Care found a strong correlation between childhood obesity and dental cavities among homeless children. Researchers analyzed data from 157 children aged 2-17 years old at an urban homeless shelter, revealing that as body mass index increased with age, so did cavity counts.

SourceCase Western Reserve University·JournalJournal of Pediatric Health Care·DateNov 13, 2012

Autism treatment is more than skin deep

Researchers found that metal-binding agents applied to the skin, prescribed for autism treatment, are not absorbed and ineffective. The study contradicts claims made by some practitioners treating children with mercury-binding agents.

SourceSpringer·JournalJournal of Medical Toxicology·DateNov 13, 2012

Warming temperatures will change Greenland's face

Scientists predict that Greenland's ice sheet will lose more ice and snow to melting than it will accumulate over the next century due to warming temperatures. Basins on the southwest and north coasts will suffer the greatest losses, with temperatures only needing to increase by 0.6-2.16C for net loss.

SourceCity College of New York·JournalEnvironmental Research Letters·DateNov 13, 2012

A smoker's license: Too radical for tobacco control?

Experts Simon Chapman and Jeff Collin disagree on the need for a smoker's license, with Chapman arguing it would limit access to tobacco products and encourage quitting, while Collin argues it would stigmatize smokers and shift focus away from the industry

SourcePLOS·JournalPLOS Medicine·DateNov 13, 2012

Pictures effective in warning against cigarette smoking

A new study published in the American Journal of Preventive Medicine finds that pictorial health warnings on cigarette packaging are effective in warning against cigarette smoking. The research, led by James F. Thrasher, PhD, found that graphic imagery is more credible and effective than text-only labels among smokers with low health l...

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateNov 13, 2012

Mobile phone services help smokers quit

A new systematic review found that people who received mobile phone-based smoking cessation services were more likely to stay away from cigarettes for six months. The review analyzed data from five studies involving over 9,000 participants, showing a nearly doubling of quit rates in intervention groups compared to control groups.

SourceWiley·JournalCochrane Database of Systematic Reviews·DateNov 13, 2012

Relatives of people dying suddenly from heart problems have increased risk of cardiovascular disease

A study published in the European Heart Journal found that relatives of young people who died suddenly from a heart-related problem are at greatly increased risk of developing cardiovascular disease. The study suggests that close relatives of these victims should be screened to detect those who would benefit from preventive treatment.

SourceEuropean Society of Cardiology·JournalEuropean Heart Journal·DateNov 13, 2012

Farm injury risks increase with age

A study by the University of Alberta found that older farmers (45-64 years) spend more time operating tractors and combines, increasing their risk of serious injury. The study also highlighted the importance of newer machinery with better safety features to reduce injury risks.

SourceUniversity of Alberta·JournalAmerican Journal of Industrial Medicine·DateNov 13, 2012

Choreographing light

Researchers at EPFL's Computer Graphics and Geometry Laboratory have created an algorithm to control the 'caustic' effect, a natural optical phenomenon that generates clear images on transparent surfaces. The technique allows for the creation of complex representations such as faces or landscapes from simple forms like stars.

Terminally ill cancer patients who discuss end-of-life care early can avoid aggressive treatment

A new study by Dana-Farber Cancer Institute researchers found that patients who discussed end-of-life care several months before their death were less likely to receive aggressive therapy and more likely to enter hospice care. These conversations enabled patients to think through their options more carefully, leading to better quality ...

SourceDana-Farber Cancer Institute·JournalJournal of Clinical Oncology·DateNov 13, 2012

Better ways to monitor quality of care for newborns

Experts in PLOS Medicine recommend new signal functions to track the quality of routine and emergency newborn care. The new methods aim to improve maternal and newborn care in low- and middle-income countries, helping to meet Millennium Development Goals 4 and 5.

SourcePLOS·JournalPLOS Medicine·DateNov 13, 2012

It pays to cooperate

In a study, MIT physicists found that cooperative yeast members outperform cheaters when competing with bacteria in an experimental setup. This is because cooperators have easier access to sugars and can spread less due to population density constraints.

SourceMassachusetts Institute of Technology·JournalMolecular Systems Biology·DateNov 13, 2012

Advocacy for planned home birth not in patients' best interest

A recent study published in the American Journal of Obstetrics and Gynecology challenges the benefits of planned home birth, citing higher rates of unexpected complications, emergency transports, and perinatal mortality. The authors argue that a hospital-based approach can provide a safer and more satisfying experience for patients.

SourceElsevier Health Sciences·JournalAmerican Journal of Obstetrics and Gynecology·DateNov 13, 2012

For brain tumors, origins matter

Sanford-Burnham researchers found that different brain tumor cell types respond to distinct treatments due to varying growth factor regulation. This discovery offers potential for more effective and less harmful treatments tailored to individual tumors.

SourceSanford Burnham Prebys·JournalOncogene·DateNov 13, 2012

Do consumers evaluate cell phones differently if the warranty is expressed in years or days?

A recent study found that consumers tend to favor warranties expressed in standard units, such as years. When presented with alternative units, like days, consumers' evaluations of cell phone warranties were negatively impacted. This shift in perception occurred mainly when individual products were shown in isolation.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateNov 13, 2012

Powering lasers through heat

Researchers at the University of Innsbruck propose a novel method for powering lasers through heat, which could provide internal cooling and revolutionize microchip technology. The concept involves using temperature gradients to separate cold and warm areas in the laser, allowing for efficient energy transfer.

SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateNov 13, 2012

Cancer: Exercise reduces tiredness

Aerobic exercise can help relieve fatigue associated with cancer and treatment, balancing rest with physical activity may reduce fatigue. The new review adds 28 studies, including those in breast cancer patients, showing that aerobic exercise benefits those with solid tumours during and after treatment.

SourceWiley·JournalCochrane Database of Systematic Reviews·DateNov 13, 2012

G proteins regulate remodelling of blood vessels

Researchers at the Max Planck Institute have discovered how external signals regulate vascular remodelling through G protein-mediated signalling pathways. These pathways work together in other contexts but act as antagonists in blood vessel remodelling, balancing cell growth and regression.

SourceMax-Planck-Gesellschaft·JournalJournal of Experimental Medicine·DateNov 13, 2012

Can the addition of radiolabeled treatments improve outcomes in advanced metastatic disease?

Researchers explored the benefits of adding radionuclide therapy to cancer treatment regimens for patients with advanced disease. Studies found improved tumor control rates and longer patient survival without significant side effects, suggesting a potential paradigm shift in cancer control.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalCancer Biotherapy and Radiopharmaceuticals·DateNov 13, 2012

Less of a shock

Researchers have developed a low-energy defibrillation scheme that significantly reduces the energy needed to re-establish a normal rhythm in the heart's main chambers. This novel electrotherapy could be less painful than existing implantable defibrillators and may even fall beneath the threshold at which patients begin to perceive pain.

SourceWashington University in St. Louis·JournalJournal of the American College of Cardiology·DateNov 13, 2012

New study examines how health affects happiness

A new study published in the Journal of Happiness Studies found that disease disrupts daily functioning is associated with reduced happiness. The study used a direct measure of disability and found a three-percent reduction in unhappiness for every one-point increase in freedom-from-debility score.

SourceGeorge Mason University·JournalJournal of Happiness Studies·DateNov 13, 2012

Fast food menu options double; calorie counts remain high

A study by Temple University found that fast food menus have doubled in size, but calorie counts have changed little between 1997 and 2010. The average calorie content of foods offered by major U.S. fast food restaurants remained stable, while entree salads and sweetened teas became increasingly popular additions to the menus.

SourceTemple University·JournalAmerican Journal of Preventive Medicine·DateNov 13, 2012