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Science News for May 4, 2021


Stirling experts develop artificial intelligence to monitor water quality more effectively

Researchers at the University of Stirling have developed a new algorithm that analyzes data from satellite sensors to estimate trophic state directly, improving monitoring of issues like harmful algal blooms. This method outperforms current approaches with an accuracy rate of over 90% for highly affected waters.

SourceUniversity of Stirling·JournalISPRS Journal of Photogrammetry and Remote Sensing·DateMay 4, 2021

People with disabilities faced pandemic triage biases

A new study found that unconscious biases in emergency triage protocols led to prioritization of able-bodied patients over those with intellectual disabilities. Social workers can act as advocates for these individuals, while educational changes are needed to address structural inequalities and biases.

SourceUniversity of Georgia·JournalDisaster Medicine and Public Health Preparedness·DateMay 4, 2021

Cayman Islands sea turtles back from the brink

Sea turtle nesting populations in the Cayman Islands have recovered significantly after conservation efforts, with loggerhead and green turtle numbers increasing dramatically. However, hawksbill turtle nest numbers remain low and populations still face threats including illegal hunting and artificial lighting on nesting beaches.

SourceUniversity of Exeter·JournalFrontiers in Marine Science·DateMay 4, 2021

Examining the 'service cliff' for youth with autism and their family caregivers

A new study by Case Western Reserve University researchers highlights the need for improved access to Medicaid waivers for families affected by autism spectrum disorder. The study found that having a Medicaid waiver and high school enrollment were key predictors of youth with autism and their families using available services.

SourceCase Western Reserve University·JournalJournal of Autism and Developmental Disorders·DateMay 4, 2021

Aryl hydrocarbon receptor suppresses immunity to oral cancer through immune checkpoint regulation

Researchers discovered that deleting the aryl hydrocarbon receptor from oral cancer cells results in a robust tumor-specific immune response, allowing mice to reject the cancer. This finding provides a new target for cancer immunotherapy treatment, potentially leading to more effective treatments.

SourceBoston University School of Medicine·JournalProceedings of the National Academy of Sciences·DateMay 4, 2021

Machine learning accelerates cosmological simulations

Researchers at Carnegie Mellon University have developed a technique using machine learning and high-performance computing to simulate complex universes in less than a day. The approach enables high-resolution cosmology simulations, advancing physics research and providing new insights into the universe's mysteries.

SourceCarnegie Mellon University·JournalProceedings of the National Academy of Sciences·DateMay 4, 2021

Original investigation: When drug companies raise list prices, out-of-pocket costs for patients

A new study by Dr. Benjamin Rome and colleagues found that over half of patients experience increases in out-of-pocket costs when drug prices increase, with some patients facing 15% hikes. The study, published in JAMA Network Open, analyzed 79 brand-name drugs and found average out-of-pocket costs rose 3.5% from 2015 to 2017.

SourceBrigham and Women's Hospital·JournalJAMA Network Open·DateMay 4, 2021

U of A researchers successfully use 3-D 'bioprinting' to create nose cartilage

A team of University of Alberta researchers has discovered a way to use 3-D bioprinting technology to create functional cartilage in just four weeks, which can be used to restore nasal features in skin cancer patients. This method reduces the risk of complications and provides a more precise solution for reconstructive surgery.

HKUST scientists discover how antibiotics target bacterial RNAP to inhibit its gene transcription

A research team at HKUST has discovered the mechanism of DNA melting and how an antibiotic called Myxopyronin inhibits this process. The study found that Myxopyronin binds to a partially closed form of the flexible clamp domain, diminishing the gate's ability to close and eventually inhibiting DNA melting.

SourceHong Kong University of Science and Technology·JournalProceedings of the National Academy of Sciences·DateMay 4, 2021

Help for serious shopaholics

Researchers and clinicians now have evidence-based criteria to develop targeted interventions for this debilitating condition. Compulsive Buying-Shopping Disorder is characterized by excessive purchasing without utilising items for their intended purposes and using shopping to regulate internal states.

SourceFlinders University·JournalJournal of Behavioral Addictions·DateMay 4, 2021

Climate change impacts conservation sites across the Americas

A new study finds that a network of Important Bird and Biodiversity Areas (IBAs) in the Caribbean and Central and South America will remain robust under climate change. Despite predictions of species shifts, more than half of IBAs are projected to remain climatically suitable for 73% of conservation-concerned species.

SourceDurham University·JournalFrontiers in Ecology and Evolution·DateMay 4, 2021

Concussions among US adolescents

A recent survey study estimated that the percentage of US adolescents who reported at least one diagnosed concussion during their lifetime has increased. The study found that nearly 3% of adolescents in the United States experienced a concussion, with higher rates among males and those participating in contact sports.

SourceJAMA Network·JournalJAMA·DateMay 4, 2021

Being around children makes adults more generous

A new study found that adults are up to twice as likely to donate to charity when children are around, indicating a 'child salience effect'. The presence of children influences compassionate motivations and behaviors in adults. This effect was observed across different age groups, parents, and non-parents.

SourceUniversity of Bath·JournalSocial Psychological and Personality Science·DateMay 4, 2021

Snakeskin can inspire to safer buildings

New research from Aarhus University and UC Davis investigates the interaction between soil types and snake-inspired surface geometries. The study found that piles with asymmetric micro-structural features increase load-bearing capacity in sand, reducing resistance during installation by 25-50%.

SourceAarhus University·JournalActa Geotechnica·DateMay 4, 2021

Changes in proteins play important role in aging kidneys

Researchers studied age-related changes in kidney function, combining protein analysis with gene transcription. They found that aging kidneys have increased immune cells, inflammation, and decreased mitochondrial energy production. This suggests that therapies promoting protein building or slowing breakdown may help treat age-related k...

SourceeLife·DateMay 4, 2021

Research reveals Medicaid expansion is still improving hospital finances

A new study published in Medical Care Research and Review found that Medicaid expansion provided a financial boost to hospitals, with uncompensated care costs declining by 28% in states that expanded Medicaid relative to 2013 levels. The study analyzed critical data at state and national levels using IRS and CMS data sources.

SourceUniversity of Colorado Anschutz Medical Campus·JournalMedical Care Research and Review·DateMay 4, 2021

A sweet solution to hard brain implants

Researchers at McGill University developed a novel approach using silicone and sugar to create the softest brain implant yet. The new implants have shown reduced inflammation and higher neuronal density compared to traditional hard implants.

SourceMcGill University·JournalAdvanced Materials Technologies·DateMay 4, 2021

New study traces back the progenitor genomes causing COVID-19 and geospatial spread

Researchers reconstructed the SARS-CoV-2 progenitor genome, finding it was circulating worldwide months before the first reported cases of COVID-19 in China. The team's findings provide a genetic common ancestor to all current infections and could aid molecular epidemiology detective work.

The micro-environment of breast cancer in three dimensions

Researchers cultivated tumor microenvironments using metastatic triple-negative breast cancer cells and studied the genetic information of entire systems. They found that cellular communication in the microenvironment drives physiological changes in tumor behavior, including growth and movement.

SourcePenn State·JournalAdvanced Biology·DateMay 4, 2021

Laser light makes a comeback (literally)

Researchers from Osaka University have made a groundbreaking discovery about the behavior of laser pulses in free space. They found that laser pulse intensity can propagate in a straight line, with the forward-propagating velocity being the speed of light and the backward-propagating velocity being subluminal.

SourceOsaka University·JournalCommunications Physics·DateMay 4, 2021

New app makes Bitcoin more secure

A new mobile app is being developed to safeguard users of cryptocurrency by detecting vulnerabilities in popular 'wallet' applications used to manage Bitcoin. The app, called the Bitcoin Security Rectifier, monitors for signs of intrusions and alerts users when an attack is happening, providing remedies based on the type of attack.

New study deconstructs Dunbar's number

A new study from Stockholm University debunks the idea that humans can maintain stable relationships with only 150 people, citing a lack of precision in available methods and data. The researchers found that the average maximum group size is often lower than 150, with confidence intervals ranging from 2 to 520 people.

SourceStockholm University·JournalBiology Letters·DateMay 4, 2021

MDI Biological Laboratory scientist identifies process critical to kidney function

A team led by Iain Drummond, Ph.D. has identified the signaling mechanisms underlying podocyte formation, a crucial process in kidney function. The discovery could lead to new therapies to stimulate regeneration of these cells, vital for ridding the body of toxins and treating conditions like chronic kidney disease.

SourceMDI Biological Laboratory·JournalJournal of the American Society of Nephrology·DateMay 4, 2021

The secret life of bee signals can communicate colony health

Researchers monitored honeybee hives to study their electrostatic field (ESF) data, revealing communication patterns and impact of pesticides on bee health. The findings indicate that weakened communications can signal colony stress and damage from environmental pollutants.

SourceFrontiers·JournalFrontiers in Behavioral Neuroscience·DateMay 4, 2021

Climate action potential in waste incineration plants

Researchers at ETH Zurich calculate that waste incineration plants in Europe have a significant potential for negative emissions through bioenergy with carbon capture and storage (BECCS). If fully exploited, BECCS could reduce European CO2 emissions by 200 million tonnes per year.

SourceETH Zurich·JournalEnergy & Environmental Science·DateMay 4, 2021

Phase transition inside the nucleus provides oncogenic function to mutant p53 in cancer

Researchers at Federal University of Rio de Janeiro discover a crucial link between phase transition and cancer pathology. Mutant p53 aggregates are formed through liquid-to-liquid phase separation, progressing to a gel-like or solid-like state that plays a key role in cancer development.

Little to no increase in association between adolescents' mental health problems and digital tech

A new study published in Clinical Psychological Science found little evidence of increased association between adolescents' technology engagement and mental health problems. Only social media use showed a slight increase in emotional problems, while other associations remained consistent or decreased over time.

SourceAssociation for Psychological Science·JournalClinical Psychological Science·DateMay 4, 2021

Mangroves and seagrasses absorb microplastics

A recent study published in Environmental Science and Technology found that mangroves and seagrasses capture higher concentrations of microplastics than control sites. The study's lead researcher notes that the accumulation of microplastics in these ecosystems may have negative impacts on animal and plant life.

SourceUniversity of Southern Denmark·JournalEnvironmental Science & Technology·DateMay 4, 2021