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Science News Archive 2020 - Page 196


Page 196 of 512

Toward a coronavirus breathalyzer test

A prototype device has been developed to detect COVID-19 in exhaled breath, reducing the need for uncomfortable nasopharyngeal swabs. The sensor shows high accuracy in distinguishing COVID-19 cases from controls and lung infections, with potential applications for screening large populations.

SourceAmerican Chemical Society·JournalACS Nano·DateAug 19, 2020

Medicaid expansion and outpatient surgical care

This observational study found that states participating in Medicaid expansion had higher rates of using common outpatient surgical procedures, including cataract surgery and hernia repair. The study suggests that increased access to healthcare may lead to more medical interventions.

SourceJAMA Network·JournalJAMA Surgery·DateAug 19, 2020

Food from the sea

Sustainably managing the ocean could increase food production by an outsize proportion relative to land-based food, nourishing the growing human population. Researchers estimate a roughly 16% increase in wild-caught seafood by 2050 if fisheries are sustainably managed.

Portrait of a virus

A new platform analyzing medical records of COVID-19 patients has provided intriguing clinical clues about the disease's presentation, evolution, and impact on different organ systems. The data from 96 hospitals in five countries has raised more questions than answers, but holds promise for rapid disease insights.

SourceHarvard Medical School·Journalnpj Digital Medicine·DateAug 19, 2020

Lungfish fins reveal how limbs evolved

A team of biologists has determined how limbs evolved from fins using embryos of the Australian lungfish. The study suggests that a primitive hand was present in lungfish fins but unique anatomy of limbs with digits only evolved during the rise of tetrapods through changes in embryonic development.

SourceUniversity of Konstanz·JournalScience Advances·DateAug 19, 2020

Improving protein digestibility in sorghum

Scientists have identified three genes linked to high protein digestibility in sorghum, which could lead to breeding programs to enhance the crop's nutritional value. This breakthrough aims to improve the lives of people in third-world countries and US livestock producers by increasing the protein content of sorghum.

SourceAmerican Society of Agronomy·JournalCrop Science·DateAug 19, 2020

Study sheds new light on certainty of opinions

Researchers at University at Buffalo suggest that certain people tend to be more confident in their attitudes across various issues, while others are more uncertain. This dispositional attitude certainty is linked to traits like self-esteem and can predict behavior, including choices made on novel items.

SourceUniversity at Buffalo·JournalJournal of Personality and Social Psychology·DateAug 19, 2020

Unlocking the cell enhances student learning of the genetic code

Researchers create a classroom kit containing cell-free protein synthesis technology to teach transcription and translation in a hands-on manner. The Genetic Code Kit significantly improves student learning gains and increases comfort with biotechnology lab techniques, preparing students for graduate programs and careers.

SourceCalifornia Polytechnic State University·JournalFrontiers in Bioengineering and Biotechnology·DateAug 19, 2020

Microbes living on air a global phenomenon

Researchers have discovered a global phenomenon where microbes thrive on air, expanding the possibilities for microbial life beyond Earth. This process, known as atmospheric chemosynthesis, was previously thought to be unique to Antarctica, but is now found in soils across the Arctic and Tibetan Plateau.

SourceUniversity of New South Wales·JournalFrontiers in Microbiology·DateAug 18, 2020

New 'nanopores' technique offers proof-of-concept of earlier, safer tumor detection

Researchers at Tokyo University of Agriculture and Technology have developed a nanopore technique that can detect single-point mutations in circulating tumor DNA (ctDNA) with high accuracy. The method uses statistical analysis to identify the position of genetic mutations, paving the way for earlier and safer tumor detection.

Constructing odor objects in the brain

A study published in Neuron explains how the brain generates representations of unitary odor objects. The research team used a combination of brain imaging and models to discover clustered representations of mixtures and groups of odors that are conserved across individual flies.

SourceRIKEN·JournalNeuron·DateAug 18, 2020

Penn State to lead $30 million university research alliance

The Penn State-led university research alliance aims to develop high-resolution radiation detectors capable of identifying dirty bombs or concealed radiation materials. The team plans to design low-cost, high-efficiency room-temperature detectors that would eliminate the need for extreme temperatures to control detecting materials.

Insect wings inspire new ways to fight superbugs

Researchers have discovered how insect wing-inspired nanomaterials kill bacteria on contact, with patterns that stretch, slice or tear cells apart. The findings hold promise for developing low-cost and scalable anti-bacterial surfaces for use in implants and hospitals to combat deadly superbugs.

SourceRMIT University·JournalNature Reviews Microbiology·DateAug 18, 2020