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Science News Archive June 2020 - Page 45


Page 45 of 48

Study casts doubt on usefulness of Ofsted ratings

A recent study by the University of York suggests that Ofsted ratings have a negligible impact on students' educational achievement and wellbeing. Only one tenth of the difference in grades can be attributed to school quality, highlighting the limited effectiveness of these ratings as guides for parents and students.

SourceUniversity of York·JournalJournal of Child Psychology and Psychiatry·DateJun 2, 2020

Tiger snakes tell more about local wetlands' pollution levels

A study by Curtin University found that tiger snakes living in Perth's urban wetlands are accumulating toxic heavy metals in their livers, suggesting habitat contamination. The snakes' bioaccumulation of heavy metals through eating frogs indicates the wetlands' pollution levels are a concern for local biodiversity.

SourceCurtin University·JournalArchives of Environmental Contamination and Toxicology·DateJun 2, 2020

Exotic nanotubes move in less-mysterious ways

Researchers isolated single BNNTs using a fluorescent rhodamine surfactant, allowing them to track their movement and confirm Brownian motion matches predictions. This study helps understand particle behavior in liquids and could lead to the development of novel composite materials and biomedical applications.

SourceRice University·JournalThe Journal of Physical Chemistry B·DateJun 2, 2020

Small study demonstrates sample inactivation may lead to SARS-CoV-2 false negatives

A small study investigates the effect of sample inactivation on SARS-CoV-2 detection and finds that viral inactivation may contribute to false negatives. The researchers tested several inactivation methodologies, including TRIzol, which showed the least effect on RNA copy number, making it recommended for sample inactivation.

SourceAmerican Society for Microbiology·JournalJournal of Clinical Microbiology·DateJun 2, 2020

The Third Age is the Golden Age

A new project aims to drive evidence-based propositions for creating an environment where Third Agers (older individuals easing off full-time employment) can contribute to society. The study explores building social capital beyond economics and reimagining traditional family structures to provide support.

Novel bioaccumulative compounds found in marine bivalves

A study published in Environmental Science & Technology found that mussels and sediment from Hiroshima Bay contain novel bioaccumulative compounds with high toxicological effects. The researchers identified unknown mixed halogenated compounds with similar physicochemical properties to persistent organic pollutants.

SourceEhime University·JournalEnvironmental Science & Technology·DateJun 2, 2020

Recycling plastics together, simple and fast

Researchers at Shinshu University have created a method to blend different types of thermoplastic materials without compromising their quality. By using a compatibilizer, they successfully melted various plastics together, paving the way for more efficient recycling and reducing plastic waste in the environment.

Human waste could help combat global food insecurity

A team of researchers has discovered a way to create a nitrogen-rich fertilizer using human waste, which could increase agriculture yields in developing countries and reduce groundwater contamination. The new method involves recycling nitrogen from urine through a process involving biochar and CO2 priming.

SourceUniversity of Saskatchewan·JournalACS Sustainable Chemistry & Engineering·DateJun 2, 2020

Western Canadian scientists discover what an armoured dinosaur ate for its last meal

Researchers have discovered that a nodosaur, an armoured dinosaur, primarily ate fern leaves, with 88% of its stomach contents composed of chewed leaf material. The team found evidence of specific fern species, including those that grow in fire-scarred landscapes, suggesting the dinosaur adapted to exploit post-fire vegetation.

SourceUniversity of Saskatchewan·JournalRoyal Society Open Science·DateJun 2, 2020

New CRISPR advance may solve key quandary

Scientists at ChristianaCare's Gene Editing Institute have developed a new CRISPR advance that can safely target and disable the NRF2 gene linked to a bleak prognosis in lung cancer tumors. This approach aims to improve the efficacy of conventional chemotherapy and radiation treatments while minimizing harm to normal cells.

SourceBurness·JournalMolecular Cancer Research·DateJun 2, 2020

Genome evolution goes digital

The study focuses on flipons, DNA sequences that act as on-off switches to change genetic information. Flipons enable the compilation of multiple messages from a single genomic sequence, generating more diversity than mutation or DNA rearrangements.

SourceInsideOutBio·JournalRoyal Society Open Science·DateJun 2, 2020

Pulmonary embolism and COVID-19

A study published in Radiology found that 51% of patients with a pulmonary embolism were diagnosed in the Emergency Department, and 72% of PE diagnoses occurred in patients not requiring ICU-level care. Early detection using CT angiography was key to treatment, and preventive blood thinners should be considered for COVID-19 patients.

SourceHenry Ford Health·JournalRadiology·DateJun 2, 2020