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Science News for October 4, 2016


Invasive insects cost the world billions per year

A new study estimates that invasive insects globally incur at least US$70 billion in annual costs to goods and services, while also resulting in significant health expenses. The researchers stress that these figures are likely underestimates due to the lack of research on the topic in many regions.

SourceUniversity of Adelaide·JournalNature Communications·DateOct 4, 2016

Networking is the way to go

Networking is crucial for spreading integrated pest management in agriculture. The article suggests three ways to improve networking: enhancing communication between research organizations, involving advisors in defining research projects, and structuring knowledge generation approaches. By following these recommendations, farmers can ...

SourceAarhus University·JournalCrop Protection·DateOct 4, 2016

Sex before sport doesn't negatively impact performance

A recent review published in Frontiers in Physiology challenges long-held views that abstinence from sexual activity can improve athletic performance. Research suggests that sex before competition may have a beneficial effect on marathon runners' performance and does not negatively impact performance.

SourceFrontiers·JournalFrontiers in Physiology·DateOct 4, 2016

Making medications safer for newborns

Researchers are working to develop safer drug treatments for newborns through increased clinical trials and improved efficiency. Currently, most medication treatments in newborns are based on adult studies, which can lead to uncertainty about their effectiveness.

SourceWiley·JournalBritish Journal of Clinical Pharmacology·DateOct 4, 2016

How gut microbes help chemotherapy drugs

Researchers identify two gut bacteria that activate cancer-fighting T cell immune responses, enhancing the effects of cyclophosphamide. These microbial-driven immune responses predicted longer progression-free survival in advanced lung and ovarian cancer patients treated with chemo-immunotherapy.

SourceCell Press·JournalImmunity·DateOct 4, 2016

Invasive insects: An underestimated cost to the world economy

A recent study reveals that invasive insects cause significant damage to agriculture, health care, and infrastructure, resulting in estimated annual losses of 69 billion euros. The majority of these damages are attributed to North America, with Europe and Asia also experiencing substantial financial losses.

SourceAgence F·JournalNature Communications·DateOct 4, 2016

Infants use prefrontal cortex in learning

Researchers found that infants as young as 8 months use the same circuits as adults when learning simple hierarchical rules. Their brains are properly adapted to handle essential elements in their world, suggesting a more mature prefrontal cortex than previously thought.

Studies address improving care for Chinese American immigrants with depression

Two recent studies by MGH psychiatrists improve treatment outcomes for Chinese American immigrants with depression. Culturally sensitive treatment combined with telepsychiatry shows significant improvement in depression symptoms, while stigma can reduce effectiveness. The studies suggest that stigmatizing attitudes may exert an indepen...

SourceMassachusetts General Hospital·JournalJournal of Clinical Psychiatry·DateOct 4, 2016

Queens, sex and colony collapse

Scientists found that queen bees infected with deformed wing virus can transmit the disease through natural mating, leading to colony collapse. The study suggests that a significant portion of failed bee colonies is due to queen failure, highlighting the importance of managing queen health.

SourceAarhus University·JournalScientific Reports·DateOct 4, 2016

Ben-Gurion U. study highlights gene that could lead to therapies for ALS

Researchers from Ben-Gurion University of the Negev discovered a novel molecular mechanism that could lead to new therapies for ALS. They found that endogenous multifunctional protein macrophage migration inhibitory factor (MIF) acts as a chaperone for misfolded SOD1 proteins, which accumulate and cause cell death in ALS patients.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalProceedings of the National Academy of Sciences·DateOct 4, 2016

New fault discovered in earthquake-prone Southern California region

A new fault has been identified in the Salton Sea area of Southern California, which could impact current seismic hazard models and earthquake risk assessment. The discovery provides much-needed information on the intricate structure of earthquake faults beneath the sea and may offer new insights into the region's earthquake cycle.

SourceUniversity of California - San Diego·JournalBulletin of the Seismological Society of America·DateOct 4, 2016

Do older people take fewer risks?

Research by University of Basel found that older people do not necessarily take fewer risks than younger people, but rather their risk-taking behavior depends on the type and complexity of tasks. The study used both self-report and behavioral measures to investigate age-related changes in risk-taking propensity.

SourceUniversity of Basel·JournalFrontiers in Aging Neuroscience·DateOct 4, 2016

Discovery of an extragalactic hot molecular core

Astronomers have detected a 'hot molecular core,' a cocoon of molecules surrounding a newborn massive star, for the first time outside our Galaxy. This discovery reveals significantly different chemical compositions compared to similar objects in our own Galaxy, suggesting potential difficulties in producing large organic species.

SourceTohoku University·JournalThe Astrophysical Journal·DateOct 4, 2016

Make an October weight resolution

A recent study published in the New England Journal of Medicine found that individuals tend to gain weight between Thanksgiving and Christmas, with a peak around the New Year. By setting an October weight resolution, individuals can avoid gaining holiday weight altogether, as it may take over 5 months to lose gained pounds.

SourceCornell Food & Brand Lab·JournalNew England Journal of Medicine·DateOct 4, 2016

Study shows majority of US students can now choose non-animal teaching methods

A new study from PETA finds that 63% of US public schools allow students to opt out of animal dissection. Non-animal teaching methods have been shown to teach biology better and save time and money. The study's findings support the growing trend towards compassionate education, backed by the National Science Teachers Association.

SourcePeople for the Ethical Treatment of Animals (PETA)·JournalThe American Biology Teacher·DateOct 4, 2016

The psychology behind climate change denial

Research finds climate change denial correlates with political orientation, authoritarian attitudes, and a tough-minded personality. Climate change is often framed as a threat to the poor or weak, which may not be convincing for those who prioritize hierarchical power structures.

SourceUppsala University·JournalPersonality and Individual Differences·DateOct 4, 2016

'Connectosomes' create gateway for improved chemo delivery, fewer side effects

Engineering researchers at the University of Texas at Austin have developed a new method for delivering chemotherapy directly and efficiently to individual cells using nanoparticles called 'connectosomes.' This approach has been shown to reduce the dose required to kill cancer cells by up to 10 times, potentially decreasing side effects.

SourceUniversity of Texas at Austin·JournalJournal of the American Chemical Society·DateOct 4, 2016

Disease-causing gut bacteria common in children

A study found that disease-causing gut bacteria, Enteroaggregative E. coli, are prevalent in 14% of children, even in industrialized countries with mild symptoms. The researchers hope to investigate factors contributing to diarrheal disease and explore probiotic agents for maintaining gut balance.

SourceFrontiers·JournalFrontiers in Cellular and Infection Microbiology·DateOct 4, 2016

Novel 3-in-1 'Rheo-Raman' microscope enables interconnected studies of soft materials

The novel 'Rheo-Raman' microscope allows for interconnected studies of soft materials by correlating their microstructure, composition, and flow behavior. This enables the understanding of how structural make-up dictates macroscopic properties like strength, hardness, or electrical conductivity.

SourceNational Institute of Standards and Technology (NIST)·JournalReview of Scientific Instruments·DateOct 4, 2016

The effectiveness of activity trackers and rewards to encourage physical activity

A study from Duke-NUS Medical School found that activity trackers alone or with rewards did not increase physical activity levels. However, those who received cash rewards showed significant increases in activity. The benefits of tracking were short-lived, and participants returned to their previous activity levels after the incentives...

SourceDuke-NUS Medical School·JournalThe Lancet Diabetes & Endocrinology·DateOct 4, 2016

A breakthrough in the study of how things break, bend and deform

Researchers at Drexel University have made a breakthrough in the study of how things break, bend and deform. They discovered that layered materials form internal buckles, or ripples, as they deform under stress, dubbed 'ripplocation'. This new paradigm explains non-linear elastic behavior within the constraints of dislocation theory.

SourceDrexel University·JournalScientific Reports·DateOct 4, 2016

Canine hyperactivity reflected in the blood count

Researchers found significant links between hyperactivity, lower blood phospholipid levels, and a negative correlation with tryptophan metabolites in hyperactive dogs. This study suggests that intestinal health impacts canine behavior and provides new clues for studying behavioral disorders.

SourceUniversity of Helsinki·JournalBehavioral and Brain Functions·DateOct 4, 2016

Overlooked plants defy drought

Scientists have discovered that certain plants resistant to a hormone called abscisic acid (ABA) can grow better than normal neighbors during droughts. ABA-resistant varieties may hold the key to breeding 'stay green' traits in crops, which could help them retain their leaves and continue to produce food and other essential resources.

SourceeLife·DateOct 4, 2016

Understanding chromatin's cancer connection

A new imaging technique enables researchers to visualize chromatin's dynamic processes in live cells, revealing its organization and response to stimuli. This breakthrough offers insights into the complex relationship between chromatin and gene expression, with potential implications for understanding cancer development.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateOct 4, 2016

The first urban park butterfly study in HK: HKU ecologists reveal causes of butterfly diversity

Researchers found that environmental factors like plant cover and floral density determine common urban butterfly species, while spatial properties influence rare species. Urban park design can encourage or discourage certain species, emphasizing the need for careful consideration of surrounding landscape and disturbance features.

SourceThe University of Hong Kong·JournalLandscape Ecology·DateOct 4, 2016

Acclaimed health program fails to help children in India

A large-scale study by Duke University researchers found that India's World Health Partners (WHP) Sky program had no impact on improving healthcare for children with diarrhea and pneumonia. Despite its $23 million funding, the program failed to increase access to proper treatment or change healthcare utilization patterns.

SourceDuke University·JournalHealth Affairs·DateOct 4, 2016

How fast will we need to adapt to climate change?

A quantitative model considers different rates of sea-level rise and economic factors to show optimal adaptation strategies. Researchers found that a buffer zone along the shoreline might make more sense if the sea level is going to rise quickly, but building near the coast could be suitable if buildings don't last very long.

SourceCarnegie Institution for Science·JournalEnvironmental Research Letters·DateOct 4, 2016

Measurement helps craniofacial surgeons better evaluate children with skull deformity

A new method of evaluation, using the cephalic width-intercoronal distance ratio, has been recommended to help determine when surgical intervention is needed for infants with fused cranial sutures. This measurement indicates a potential need for surgery in cases where the front and back of the skull are not proportionate.

SourceUniversity of Missouri-Columbia·JournalThe Cleft Palate-Craniofacial Journal·DateOct 4, 2016

New insights into how black carbon aerosols impact the atmospheric boundary layer

Researchers used unmanned aircraft to measure turbulent kinetic energy, aerosol particle concentration, and temperature fluctuations near the Earth's surface. The study found that black carbon aerosols suppress turbulence in the atmospheric boundary layer, exacerbating human health impacts and extreme weather events.

SourceDesert Research Institute·JournalProceedings of the National Academy of Sciences·DateOct 4, 2016

Antibody drug conjugates may help personalize radiotherapy for patients with cancer

Researchers have identified a strategy to selectively sensitize certain cancer cells to radiation therapy using antibody drug conjugates (ADCs), which could improve tumor control and reduce treatment-related side effects in HER2-positive tumors. The study shows promise in sensitizing these cancers to radiation and chemotherapy.

SourceUniversity of California - San Diego·JournalNature Communications·DateOct 4, 2016

New advances in solar cell technology

Researchers at OIST have made significant breakthroughs in perovskite solar cells, improving efficiency, stability, and scalability. New post-annealing treatments and manufacturing methods have increased conversion efficiency to 18.4%, while discovering new decomposition products has led to the development of more stable materials.

Artificial intelligence could help farmers diagnose crop diseases

Researchers at Penn State and EPFL developed an AI model to recognize specific plant diseases from images, achieving an accuracy rate of 99.35% in a public dataset. The technology has great potential for supplementing existing disease diagnosis methods and could be implemented on smartphones, especially in developing countries.

SourcePenn State·JournalFrontiers in Plant Science·DateOct 4, 2016