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Science News for February 18, 2020


Rules of life: From a pond to the beyond

A team of researchers studied microbial communities in the Cuatro Cienegas Basin, a nutrient-poor ecosystem that may resemble early Earth and past Martian wetlands. They found that organisms in these environments have evolved to process biochemical information efficiently, with species adapted to low-resource strategies dominating nutr...

The Lancet: World failing to provide children with a healthy life and a climate fit for their future: WHO-UNICEF-Lancet

A landmark report warns that every child worldwide faces existential threats from climate change and exploitative marketing practices, stalling progress in child and adolescent health over the past 20 years. The Global Index of 180 countries reveals no single country is adequately protecting children's health, environment, and futures.

SourceThe Lancet·JournalThe Lancet·DateFeb 18, 2020

Early exposure to household cleaning products is associated with asthma and wheeze in young children

Research found early exposure to household cleaning products increases risk of childhood asthma and wheeze by age 3, with scented products posing the highest risk. The study suggests avoiding or reducing use of sprays and fragrance-based cleaners to minimize a child's exposure and reduce the risk of respiratory issues.

Readmission risk increases for elderly patients with geriatric-specific characteristics

A new study published in the Journal of the American College of Surgeons has identified four geriatric-specific characteristics that increase the risk of elderly surgical patients experiencing an unplanned hospital readmission within a month of discharge. These characteristics include cognitive impairment, use of a mobility aid, risk o...

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateFeb 18, 2020

Tailoring spontaneous infrared emission of HgTe quantum dots with laser-printed plasmonic arrays

Scientists have developed a novel plasmonic platform to tailor the spontaneous near-to-mid IR emission of HgTe quantum dots, achieving a 5-fold enhancement of PL quantum yield and reducing non-radiative decay. The study demonstrates the potential for precise tuning of IR-emitting QDs' emission, improving device performance.

Despite a marked reduction in the prevalence of dementia, the number of people with dementia is set to double by 2050 according to new Alzheimer Europe report

The number of people with dementia in Europe is estimated to almost double by 2050, from 7.9 million to 14.3 million, according to a new report by Alzheimer Europe. The prevalence of dementia has decreased in recent years, but this trend is expected to reverse unless better treatments and prevention strategies are developed.

Predicting immunotherapy success

Weizmann Institute researchers found that overexpression of specific immunoproteasome subunits in melanoma is tied to anti-cancer immune activity. The study's findings suggest that these biomarkers may improve patient matching to current immunotherapy treatments, leading to better outcomes.

SourceWeizmann Institute of Science·JournalNature Communications·DateFeb 18, 2020

Study finds empathy can be detected in people whose brains are at rest

Researchers found that brain activity while resting can reveal a person's empathic disposition, potentially helping health care professionals better assess those with autism or schizophrenia. The study used functional magnetic resonance imaging to analyze brain scans and machine learning algorithms to predict participants' empathy levels.

SourceUniversity of California - Los Angeles Health Sciences·JournalFrontiers in Integrative Neuroscience·DateFeb 18, 2020

Getting a grip: An innovative mechanical controller design for robot-assisted surgery

Researchers at Tokyo Institute of Technology designed a new master controller that combines two gripping types to reduce finger fatigue and improve precision in robotic surgery. The combined grip method yielded better performance in experiments, with fewer failures and faster movements.

SourceTokyo Institute of Technology·JournalInternational Journal of Medical Robotics and Computer Assisted Surgery·DateFeb 18, 2020

NIH-funded study links natural sugars in breastmilk to early childhood height and weight

A new NIH-funded study suggests that natural sugars in breastmilk, known as human milk oligosaccharides (HMOs), may influence a child's growth from infancy through early childhood. The study found associations between HMO composition and growth patterns among 800 pairs of mothers and children.

Certification as a medical home: Does it make a difference in diabetes care?

Research found certified medical home practices had better performance outcomes on diabetes care quality measures and more systems compared to non-certified practices. Certified practices also showed slightly better performance on diabetes care quality measures despite having similar patient populations as non-certified practices.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateFeb 18, 2020

How language proficiency correlates with cognitive skills

Researchers found that higher English proficiency levels correlated with better executive control performance in unbalanced bilinguals. This suggests that language skills may play a significant role in cognitive control efficiency. The study used an objective method to evaluate second language proficiency, providing new insights into t...

Wall Street investors react to climate change

A survey of institutional investors reveals a growing recognition of climate change among Wall Street executives. The survey found that over 97% believe global temperatures are rising, and more than half consider climate risks in investment decisions. Institutions are starting to take action by asking companies to disclose carbon emiss...

SourceUniversity of Texas at Austin·JournalReview of Financial Studies·DateFeb 18, 2020

Slithering snakes on a 2D plane

A team of engineers at Johns Hopkins University has developed a snake robot that can nimbly climb large steps using movement inspiration from snakes. The robot's suspension system allows it to maintain stability and climb up to 38% of its body length with a high success rate.

SourceJohns Hopkins University·JournalRoyal Society Open Science·DateFeb 18, 2020

Helpful oxygen carriers

Researchers at the University of Freiburg have discovered a novel flavin N5-peroxide that reacts differently than previously known flavin C4a-peroxide, enabling the breakdown of stable chemical compounds and environmental pollutants.

SourceUniversity of Freiburg·JournalNature Chemical Biology·DateFeb 18, 2020

Time of day affects global brain fluctuations

A study published in PLOS Biology found that global brain fluctuations decrease as the day progresses, affecting cognitive function and connectivity. The researchers analyzed fMRI data from over 900 subjects and observed a cumulative decrease in global signal fluctuation and functional connectivity with time of day.

SourcePLOS·JournalPLOS Biology·DateFeb 18, 2020

Reporting the facts on indigenous STIs

Young Indigenous people are being discouraged from getting routine STI screenings due to incorrect assumptions. This stigma can lead to poorer health outcomes, as it discourages them from reporting underlying infections. The median age for first-time sex is around 16 years old in both Indigenous and non-Indigenous Australians.

SourceUniversity of Queensland·JournalThe Medical Journal of Australia·DateFeb 18, 2020

Hubble turns lens towards gender bias, yielding lessons for Earthlings

Researchers analyzed 16 application cycles for Hubble Space Telescope time allocations and found that stripping out personal info can nearly eliminate gender bias. Female lead scientists performed slightly better than men when proposals were completely anonymized, indicating a more equitable review process.

SourceUniversity of Colorado at Boulder·JournalPublications of the Astronomical Society of the Pacific·DateFeb 18, 2020

Catching light: How cobalt can help utilize visible light to power hydrogen production from water

Scientists at Tokyo Institute of Technology have created a visible-light photoelectrochemical system using cobalt-enhanced TiO2. The process enables efficient water oxidation, producing hydrogen as a clean alternative fuel. Cobalt domains on the surface enhance light absorption and catalytic sites facilitate water oxidation.

SourceTokyo Institute of Technology·JournalACS Applied Materials & Interfaces·DateFeb 18, 2020

Exposure to cleaning products in first 3 months of life increases risk of childhood asthma

A new study finds that young infants exposed to common household cleaning products are more likely to develop childhood wheeze and asthma by three years of age. The study, published in the Canadian Medical Association Journal, suggests that chemicals in cleaning products can damage respiratory tract cells, increasing the risk of asthma.

SourceSimon Fraser University·JournalCanadian Medical Association Journal·DateFeb 18, 2020

Primary care patients assess econsult model for provider-to-specialist consultations

Patients across five academic medical centers reacted favorably to an electronic consultation (eConsult) service for primary care provider-to-specialist consultations. Key benefits included quicker access to specialty care and convenience, with approval rates high among patients with a trusted primary care provider.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateFeb 18, 2020

Creating custom light using 2D materials

Scientists have created custom light using 2D materials by combining different transition metal dichalcogenides to form artificial semi-conductors emitting specific colors. This discovery opens up new strategies for manipulating light with precise energy and color, paving the way for mass industrialization of tailor-made lighting.

SourceUniversité de Genève·JournalNature Materials·DateFeb 18, 2020

Community LGBTQ supportiveness may reduce substance use among sexual minority adolescents

Research found that community-level LGBTQ supportiveness is associated with lower odds of lifetime substance use among sexual minority boys and girls. Living in a large population center also reduced the risk of lifetime alcohol use for boys, while a progressive political climate increased the risk of marijuana use for girls.