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Science News for September 8, 2020


Fossil growth reveals insights into the climate

Researchers analyzed fossil bones of Panthasaurus maleriensis, an ancestor of modern amphibians, and found phases of rapid and slow growth depending on the climate. The study provides valuable insight into the prehistoric past, with the Indian site showing evidence of both young and adult animals.

SourceUniversity of Bonn·JournalPeerJ·DateSep 8, 2020

Boundaries no barrier for thermoelectricity

Researchers at Rice University found that electricity generated by temperature differences in gold nanowires is not affected by grain boundaries, contrary to previous assumptions. This discovery could enable the detection of crystalline defects using a novel optical detection system.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateSep 8, 2020

Brain stimulation reduces dyslexia deficits

A study published in PLOS Biology found that brain stimulation therapy can alleviate sound-processing deficits and improve reading accuracy in adults with dyslexia. The therapy, known as transcranial alternating current stimulation (tACS), was shown to be particularly effective for individuals with poor reading skills.

SourcePLOS·JournalPLOS Biology·DateSep 8, 2020

CNIO researchers develop an effective strategy against KRAS mutant lung tumors in mice

Researchers from CNIO achieved complete remission in 25% of lung tumors induced by KRAS oncogene in mice following genetic inactivation of CDK4 and RAF1. This strategy also prevented cancer cell growth in healthy mice and identified molecular mechanisms that triggered resistance, such as PI3K pathway activation.

SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalProceedings of the National Academy of Sciences·DateSep 8, 2020

Lost frogs rediscovered with environmental DNA

Scientists have detected signs of a frog listed as extinct using environmental DNA in two regions of Brazil. The frog, Megaelosia bocainensis, was among seven total species detected, including four declining species and two that had disappeared locally for many years.

SourceCornell University·JournalMolecular Ecology·DateSep 8, 2020

Theoretical prediction of reverse intersystem crossing for organic semiconductors

Researchers developed a prediction method for reverse intersystem crossing (RISC) in organic semiconductors, leading to improved light emission efficiency for Organic Light-Emitting Diodes (OLEDs). The method demonstrated accurate predictions for various TADF materials, with some presenting RISC rate constants of over 10^7 per second.

SourceJapan Science and Technology Agency·JournalNature Communications·DateSep 8, 2020

Lineshape-tailoring of coupled plasmonic systems based on first principle

A newly published paper introduces a formal theoretical framework from first principles, enabling researchers to predict the fascinating properties of coupled photonic systems before numerically simulating them. The theory allows for the design and prediction of line-shapes with desired near-field and far-field properties.

Young US adults hospitalized with COVID-19

A case series of 3,222 young US adults (18-34 years) hospitalized with COVID-19 reveals insights into the disease's impact on this demographic. The study highlights the importance of understanding COVID-19 in young adults to inform public health strategies and treatment guidelines.

SourceJAMA Network·JournalJAMA Internal Medicine·DateSep 8, 2020

A new method may make tomatoes safer to eat

A new study shows promise in reducing foodborne pathogens on tomatoes by applying sanitizers in the field. The method uses FDA-approved additives, significantly reducing bacterial populations and saving labor costs for producers. This approach could become a practical solution for controlling foodborne pathogens.

SourceUniversity of Georgia·JournalFood Control·DateSep 8, 2020

Cascades with carbon dioxide

Researchers develop a conceptually new process to produce cyclic carbonates from CO2 and basic building blocks, offering potential for biodegradable plastics and pharmaceutical intermediates. The process yields six-membered rings with great potential for creating new CO2-based polycarbonates.

SourceWiley·JournalAngewandte Chemie International Edition·DateSep 8, 2020

People with anorexia and body dysmorphic disorder show brain similarities, differences

Researchers found abnormalities in brain function related to symptom severity in both disorders, with more severe symptoms linked to distinct patterns of activity and connectivity. The study suggests that addressing these brain abnormalities through psychotherapy or psychiatric medications could be key to treating these conditions.

SourceUniversity of California - Los Angeles Health Sciences·JournalBrain Imaging and Behavior·DateSep 8, 2020

Cashing in on marine byproducts

Flinders University researchers have found a way to convert marine waste into valuable dietary proteins and products. The study suggests that sea cucumbers and other marine animals can be used as a source of protein-rich nutrients.

SourceFlinders University·JournalMarine Drugs·DateSep 8, 2020

UBC scientists find clues to queen bee failure

Researchers discovered elevated markers associated with heat stress and pesticide exposure in failed queens from B.C., suggesting temperature fluctuations during transportation and potential pesticide effects may contribute to queen bee failure. A diagnostic test is proposed to help beekeepers understand and prevent this issue.

SourceUniversity of British Columbia·JournalBMC Genomics·DateSep 8, 2020

Scientists have discovered an environmentally friendly way to transform silicon into nanoparticles

Researchers at Skoltech have developed a simple and efficient method to convert silicon wafers into nanoparticles in an aqueous solution, providing a new source of sustainable materials. The process enables controlling particle sizes and has implications for optics, photonics, medicine, and other fields.

SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalACS Sustainable Chemistry & Engineering·DateSep 8, 2020

Insomnia identified as a new risk factor for type 2 diabetes in new study which also confirms many other risk and protective factors

A new study confirms insomnia as a novel risk factor for type 2 diabetes, with individuals experiencing a 17% higher likelihood of developing the condition. The research also identifies 15 protective factors, including increased total cholesterol and testosterone levels, which can help inform public health policies to prevent the disease.

SourceDiabetologia·JournalDiabetologia·DateSep 8, 2020

Researchers make tiny, yet complex fiber optic force sensor

A new, tiny fiber optic force sensor has been developed by researchers, enabling precise measurements of small forces and opening up potential applications in medical systems and manufacturing. The sensor, made of silica glass, measures forces with a resolution better than a micronewton and has a broad measuring range.

SourceOptica·JournalOptics Letters·DateSep 8, 2020

CEOs with uncommon names tend to implement unconventional strategies

CEOs with uncommon names tend to implement distinctive strategies, deviating from industry norms to achieve competitive advantage and superior performance. This study provides insight into the relationship between a CEO's name and their strategic decisions, highlighting potential benefits for firms seeking enhanced distinctiveness.

SourceRice University·JournalStrategic Management Journal·DateSep 8, 2020

Trees living fast die young

A global analysis of over 200 thousand tree-ring records reveals that fast-growing trees have significantly shorter lifespans than slower-growing ones. This challenges predictions of increased carbon storage in forests over the long term, suggesting that growth-lifespan trade-offs may lead to a reduced forest carbon sink.

SourceUniversity of Leeds·JournalNature Communications·DateSep 8, 2020

New glove-like device mimics sense of touch

Researchers at UNSW Sydney developed a new haptic device that recreates the sense of touch, enabling users to feel virtual or remote objects in a more realistic way. The device overcomes existing issues with haptic technology by introducing a novel method to recreate an effective haptic sensation via soft, miniature artificial muscles.

SourceUniversity of New South Wales·JournalIEEE Access·DateSep 8, 2020

More than just genetic code

A team of scientists has made a breakthrough in understanding the complex process of photosynthesis by discovering that mRNAs transport proteins to thylakoid membranes. This finding opens up new avenues for research into photobiotechnology.

SourceUniversity of Freiburg·JournalNature Plants·DateSep 8, 2020

Study finds surprisingly little difference in hospitalization rates between children with COVID-19

Researchers found no statistically significant differences in hospitalization, ICU admission, or mechanical ventilator use between the two groups. However, more patients with COVID-19 reported fever, cough, diarrhea, vomiting, headache, body ache, chest pain, sore throat, congestion, and shortness of breath at diagnosis.

SourceChildren's National Hospital·JournalJAMA Network Open·DateSep 8, 2020

California offshore winds show promise as power source

A study from California Polytechnic State University finds that offshore winds in the Central Coast increase when demand is greatest, making them an ideal candidate to fill the gap left by solar and on-shore wind energy production. The study suggests that offshore wind energy could play a crucial role in meeting California's ambitious ...

SourceCalifornia Polytechnic State University·JournalEnvironmental Research Communications·DateSep 8, 2020

Data collection, sharing practices of apps played by young children

Researchers investigated data collection and sharing practices of mobile apps played by preschool-age children, finding that many apps share personal data with third-party companies. The study also identified sociodemographic characteristics associated with app usage, highlighting the need for better data protection for young children.

SourceJAMA Network·JournalJAMA Pediatrics·DateSep 8, 2020

New fossil ape is discovered in India

A 13-million-year-old fossil unearthed in northern India belongs to a previously unknown genus and species, providing new evidence about the migration of great apes and lesser apes from Africa to Asia. The discovery pushes back the oldest known fossil record of gibbons by at least five million years.

New insights into evolution of gene expression

Researchers analyzed 1,903 RNA-seq datasets from 182 projects to reveal a complex history of gene family trees, allowing them to study the evolutionary dynamics of gene expression patterns. Gene duplication plays a key role in expression pattern shifts, and preadaptive propensities exist for genes to be utilized in other organs.

SourceUniversity of Würzburg·JournalNature Communications·DateSep 8, 2020

Innovative, minimally invasive treatment can help maintain prostate cancer patients' quality of life

A new study suggests that focal high-intensity focused ultrasound (HIFU) ablation is an effective alternative to surgery or radiation for treating prostate cancer. The procedure carries a low risk of complication and helps preserve quality of life, with no significant decrease in sexual function or urinary incontinence.

SourceUniversity of Southern California - Health Sciences·JournalThe Journal of Urology·DateSep 8, 2020

Recharging N95 masks for continued usage

Researchers have developed a method to recharge N95 masks, restoring their 95% filtration efficiency and enabling smart masks. The technique exploits electrostatics-based materials, allowing for easy charge replenishment using a battery or washing machine, making it suitable for various air filtration applications.

SourceAmerican Institute of Physics·JournalPhysics of Fluids·DateSep 8, 2020

Glasgow Coma Scale: A simple tool to use when verbal component scores are missing

The Glasgow Coma Scale (GCS) has been extended with a simple method to impute missing verbal component scores. Using a distribution of verbal scores for each combination of eye and motor scores, clinicians can now easily determine the GCS sum score when verbal data is missing, aiding in clinical decision-making and patient outcomes.

SourceJournal of Neurosurgery Publishing Group·JournalJournal of Neurosurgery·DateSep 8, 2020

Ecology award for agroecologist

Professor Teja Tscharntke, a renowned agroecologist at the University of Göttingen, has received the prestigious Marsh Award for his groundbreaking research on biodiversity and ecosystem services. His work focuses on understanding how landscape structure affects local biodiversity and pollination processes.

Medicaid expansion improved insurance stability for low-income pregnant women

A study by Columbia University's Mailman School of Public Health found that Medicaid expansion reduces the percentage of low-income women going uninsured or changing insurance plans during pregnancy and postpartum. The findings suggest that expanding Medicaid can improve access to care and reduce adverse events for pregnant women.

A pain reliever that alters perceptions of risk

A new study suggests that acetaminophen makes risky activities seem less dangerous, leading to increased risk-taking. The study found that participants who took the pain reliever rated activities like bungee jumping and starting a new career as less risky than those who took a placebo.

SourceOhio State University·JournalSocial Cognitive and Affective Neuroscience·DateSep 8, 2020

Scientists develop low-cost chip to detect presence and quantity of COVID-19 antibodies

Researchers at OIST Graduate University developed a rapid, reliable, and low-cost antibody test using lab-on-a-chip technology. The device can detect the presence and quantity of COVID-19 antibodies in diluted blood plasma within 30 minutes, making it feasible for nationwide testing.

Suicide on screen: Getting the message right can support better mental health outcomes

Research suggests that media portrayals of suicide can increase suicidal ideation and behavior if not done sensitively, but also highlight the potential for positive outcomes when portrayed in a supportive manner. Filmmakers have a significant responsibility to ensure their content does not harm viewers, particularly those with a histo...

SourceUniversity of South Australia·JournalHealth & Social Care in the Community·DateSep 8, 2020

Funding flows into liquid fuel strategy

Rice University engineer Haotian Wang has been awarded a four-year, $2 million collaborative grant by the National Science Foundation to explore converting waste carbon dioxide into pure liquid fuels. The project aims to develop a modular electrochemical system that can provide a sustainable and negative-carbon manufacturing path.

Plastic can be sustainable

A research project at Friedrich Schiller University Jena aims to develop recyclable plastic materials that can be recycled and reused. The team, led by Prof. Ulrich S. Schubert, plans to study fibre-reinforced materials and nanocomposites with potential applications in aircraft, tennis rackets, and other industries.