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Science News for December 16, 2015


The fiscal impact of refugees in Sweden

The study found that the net fiscal redistribution from the non-refugee population to refugees in Sweden corresponded to 1.0 percent of Swedish GDP in 2007. This is due to lower public per capita revenues from refugees compared to the total population, largely attributed to their lower employment rate.

SourcePopulation Council Journals·JournalPopulation and Development Review·DateDec 16, 2015

Dogs give friends food

A study by Friederike Range and colleagues found that dogs donated food to familiar partners more often than to unfamiliar ones. The researchers also discovered that the degree of familiarity among the dogs influenced this behavior, with prosocial behavior exhibited less frequently towards unfamiliar dogs.

SourceUniversity of Veterinary Medicine -- Vienna·JournalScientific Reports·DateDec 16, 2015

High fat/low carb diet could combat schizophrenia

Research by James Cook University scientists found a ketogenic diet reduces animal behaviors resembling schizophrenia, potentially providing an alternative energy source and circumventing cellular energy pathways. The diet has also been shown to lead to weight loss and lower blood glucose levels in mice.

SourceJames Cook University·JournalSchizophrenia Research·DateDec 16, 2015

Greenland Ice Sheet during the 20th Century -- a missing link in IPCC's climate report

Researchers have made direct observations of the Greenland Ice Sheet's reduction and melting over the past 110 years. The study reveals that some areas have lost considerable amounts of ice during the twentieth century, with mass loss along the southeastern and northwestern coast contributing significantly to global sea level rise.

A molecular light switch?...Just add water

A team of scientists has discovered a way to control ultraviolet light emission from a complex oxide material by adding a water molecule to its surface. This discovery enables the potential for improving chemical sensors, computing, and information storage.

SourceDrexel University·JournalNano Letters·DateDec 16, 2015

Divorce: On the decline in sub-Saharan Africa

A new study reveals that divorce rates in sub-Saharan Africa have decreased over the past two decades, primarily due to older unions becoming more stable. The research found that as women enter into marriages at an older age, the likelihood of marriage breakdown decreases, resulting in fewer divorces.

SourceMcGill University·JournalPopulation and Development Review·DateDec 16, 2015

Brain plasticity from A to Z

The special issue of Current Opinion in Neurobiology delves into various aspects of brain plasticity, from language development at birth to cognitive flexibility associated with bilingualism. The journal features expert reviews that connect different fields of research and explore the role of artificial intelligence.

SourceInternational School of Advanced Studies (SISSA)·JournalCurrent Opinion in Neurobiology·DateDec 16, 2015

Reading the smoke signals

A new study uses laser-based measurements to estimate carbon dioxide emissions from tropical peatland fires, revealing that the amount of CO2 released depends on previous fire history. The research provides valuable insights into the devastating impact of climate change on global warming.

SourceLudwig-Maximilians-Universität München·JournalGlobal Change Biology·DateDec 16, 2015

Helping children at high risk for aggressive behavior found to have long-term benefits

A new longitudinal study found that teaching soft skills to high-risk children significantly reduces criminal and delinquent problems later in life. The study, which followed 445 children over several years, found that training in self-control and social skills accounted for a significant portion of the program's long-term benefits.

SourceSociety for Research in Child Development·JournalChild Development·DateDec 16, 2015

Greywater reuse for irrigation is safe -- Ben-Gurion U. Zuckerberg Institute study

Researchers at Ben-Gurion University's Zuckerberg Institute found that treated greywater is safe for irrigation and does not pose a risk for gastrointestinal illness or water-related diseases. The study compared the health risks of greywater users to those using tap water, finding no significant differences.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalThe Science of The Total Environment·DateDec 16, 2015

Making bicycling safer for kids with ADHD

Researchers found children with ADHD struggle to pay attention and make impulsive decisions while crossing roads on bicycles, putting them at risk of accidents. The study suggests teaching children to look for longer gaps between cars can help compensate for timing deficits.

SourceUniversity of Iowa·JournalJournal of Child Psychology and Psychiatry·DateDec 16, 2015

Implant acts as a countermeasure

Researchers developed molecular prosthetics that can detect complex signals in the immune system to suppress inflammatory responses. The prosthetics were implanted into mice and successfully treated psoriasis, providing a potential early-warning system for prevention.

SourceETH Zurich·JournalScience Translational Medicine·DateDec 16, 2015

Will grassland soil weather a change?

Research reveals that grassland soil microbial communities exhibit seasonal responses to temperature and precipitation changes, with warming treatments having a limited impact. The study highlights the importance of long-term research to understand the effects of climate change on these critical ecosystems.

SourceAmerican Society of Agronomy·JournalSoil Science Society of America Journal·DateDec 16, 2015

Penguin cam captures hunt for prey

A study by Deakin University researchers found that little penguins associate with each other to hunt schooling prey, despite not being more successful individually. The birds may trade off solo hunting benefits for improved prey detection and avoidance of predation.

SourcePLOS·JournalPLOS ONE·DateDec 16, 2015

Understanding body language of mice

Harvard Medical School scientists developed a computational technique to analyze mouse movements, organizing them into distinct pose sequences with their own syllables and grammar. This breakthrough solves the problem of objectively studying complex animal behavior without human observers.

SourceHarvard Medical School·JournalNeuron·DateDec 16, 2015

USC researchers discover way to improve image sharpness for blind people with retinal implants

Researchers at USC Eye Institute and Viterbi School of Engineering developed a new method to create focused spots of light, improving vision quality for individuals with retinitis pigmentosa. Longer pulse durations allow patients to see sharper images, boosting their sense of independence and confidence.

SourceUniversity of Southern California - Health Sciences·JournalScience Translational Medicine·DateDec 16, 2015

Mathematical model suggests select DCIS patients could delay treatment

A mathematical model developed by Duke researchers suggests that active surveillance could be a viable alternative to surgery and radiation for select patients with ductal carcinoma in situ (DCIS). The study found that older women and those with serious health problems may benefit from delayed treatment, while younger women may not. Th...

SourceDuke University Medical Center·JournalJNCI Journal of the National Cancer Institute·DateDec 16, 2015

Research reveals promising novel strategy to target cancer-causing protein

A team of scientists has discovered a mechanism by which tumor cells elevate levels of MDM4, a protein highly expressed in cancer cells. Targeting MDM4 abundance with antisense oligonucleotides (ASOs) impairs tumour growth and increases cell death, offering a promising clinically-compatible therapeutic target for various cancers.

SourceVIB (the Flanders Institute for Biotechnology)·JournalJournal of Clinical Investigation·DateDec 16, 2015

Land use may weaken amphibian's capacity to fight infection and disease

Researchers at Case Western Reserve University found that habitat characteristics explain differences in immune defense traits of frogs between populations. Microbiome differences and altered natural peptide secretions may alter the amphibian's immune defense capabilities. The study suggests that land use changes can influence animal t...

SourceCase Western Reserve University·JournalBiological Conservation·DateDec 16, 2015

New species of 'sail-backed' dinosaur found in Spain

A new species of 'sail-backed' dinosaur, Morelladon beltrani, has been found in Spain with notable features such as tall neural spines on vertebrae. The discovery sheds light on the diverse iguanodontoid fauna of southern Europe during the late Barremian period.

SourcePLOS·JournalPLOS ONE·DateDec 16, 2015

Why do chronically lonely teens stay lonely?

A study found that chronically lonely adolescents interpret social inclusion as coincidental and social exclusion as personal failure, leading to increased emotional distress. These self-defeating interpretations can perpetuate loneliness, making it harder for them to take advantage of opportunities for social inclusion.

SourceDuke University·JournalJournal of Personality and Social Psychology·DateDec 16, 2015

Children's ADHD symptoms and peer relationships influence each other over time

A longitudinal study in Norway found that children with ADHD exhibit poorer social functioning and are more likely to be rejected by peers. The study suggests a reciprocal relationship between ADHD symptoms and peer rejection, where both can influence each other's development. However, the effects of peer rejection on ADHD symptoms dec...

SourceSociety for Research in Child Development·JournalChild Development·DateDec 16, 2015

The double life of a bacteria

Researchers discovered a bacterium that can use direct uptake of electrons from an electrode to fuel its metabolic pathway. This finding suggests the existence of electro-ecosystems, where microorganisms sustain life by electrical current, not relying on inorganic substances or light.

SourceRIKEN·JournalFrontiers in Microbiology·DateDec 16, 2015

ESMO Asia 2015 Congress

The ESMO Asia 2015 Congress brought together cancer experts to discuss the latest treatment solutions and patient care. Researchers presented promising findings on immunotherapy and targeted therapy for difficult-to-treat head-and-neck cancers, as well as combination therapies for endocrine-resistant breast cancer.

Poverty may increase childhood risk of neurological impairment, NIH study suggests

Researchers found that children from low-income environments are at a higher risk of neurological impairment than those from more economically secure circumstances. The study suggests that maternal stress hormones during pregnancy and maltreatment may contribute to this increased risk.

Scientists find new vessel for detecting autism

Researchers at New York University found that individuals with autism have unstable blood vessels, disrupting brain function and circulation. The study identified a correlation between angiogenesis and neurogenesis, potentially leading to novel therapeutic interventions.

SourceNew York University·JournalJournal of Autism and Developmental Disorders·DateDec 16, 2015

When trees die, water slows

A recent study found that widespread tree mortality from mountain pine beetles can reduce water availability due to increased evaporation, rather than increasing streamflow. This challenges previous assumptions and offers new insights for managing healthier forests that are more resistant to drought.

SourceUniversity of Utah·JournalWater Resources Research·DateDec 16, 2015

Lifespan -- genetic background and physical activity

A new study investigates the relationships between genetic background, physical activity level, and lifespan. The findings reveal that same genetic factors affect physical activity level, aerobic capacity, and lifespan in both animal models and human twins. Voluntary running improved glucose metabolism but did not increase lifespan in ...

SourceAcademy of Finland·JournalScientific Reports·DateDec 16, 2015

Men actually recommend getting help for depression

A national survey found that men rank getting help from friends and family as highly important for addressing depression symptoms, with a score of 7.7 on an importance scale. In contrast, women prefer professional counseling more highly. Experts emphasize the need to overcome barriers and promote trustworthy mental health resources.

SourceBrigham Young University·JournalHealth & Social Work·DateDec 16, 2015

Scary movies can curdle blood

A small study found that watching horror movies significantly increased blood coagulant factor VIII levels in young and healthy adults, suggesting a physiological response to fear. The researchers argue that this increase is an evolutionary adaptation to prepare the body for blood loss during life-threatening situations.

SourceBMJ Group·JournalThe BMJ·DateDec 16, 2015

Activating beige fat in humans could combat obesity

Researchers found that increasing energy expenditure with brown or brite/beige fat cells could be an effective way to fight obesity. The study suggests harnessing the body's natural mechanism of converting white fat cells into beige fat cells by using heat production and increasing the sympathetic nervous system's supply of blood vessels.

SourceGeorgia State University·JournalInternational Journal of Obesity Supplements·DateDec 16, 2015

Naughty or nice? Is the way we 'perform' Santa Claus under threat?

A recent study published in Human Relations found that Santa Claus performers experience unease and threat due to the cultural re-association of the character with exploitative male sexuality. To address this, performers engage in self-management techniques, including having female staff present, to maintain the character's innocence.

SourceSAGE·JournalHuman Relations·DateDec 16, 2015

Growing diversity in doctoral programs

A new coaching program at Northwestern University is boosting the persistence of underrepresented minority and female Ph.D. students towards academic careers. The program, which includes guidance from diverse coaches and peers, has shown positive results in increasing confidence and reducing feelings of pressure and isolation.

SourceNorthwestern University·JournalAcademic Medicine·DateDec 16, 2015

Toward roads that de-ice themselves

Researchers have developed a road material that de-ices itself by releasing de-icing salt as it wears away, potentially eliminating the need for annual salt applications. The new composite, combining potassium formate with styrene-butadiene-styrene and bitumen, significantly delays ice formation in lab studies.

SourceAmerican Chemical Society·JournalIndustrial & Engineering Chemistry Research·DateDec 16, 2015

Enemy odors help flies protect their offspring

Female Drosophila flies avoid laying eggs near parasitic wasps due to an innate early warning system that detects their odor. The study identified the specific olfactory circuit responsible for this detection, revealing a highly specific and efficient defense mechanism against predators.

SourcePLOS·JournalPLOS Biology·DateDec 16, 2015