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Science News Archive November 2012 - Page 18


Page 18 of 23

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