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Science News Archive April 2019 - Page 13


Page 13 of 44

Strongly agree: It's time to test the Likert scale

A University at Buffalo researcher and his team tested the impact of response options on the reliability of psychological measures, finding that six options appears to be the magic number for optimal accuracy. They argue that too few or too many options can lead to inaccurate results due to human cognitive limitations.

SourceUniversity at Buffalo·JournalPsychological Assessment·DateApr 23, 2019

New sensor detects rare metals used in smartphones

A new protein-based sensor can detect tiny amounts of lanthanides, a crucial component of smartphone screens and electronics. The sensor uses a shape change to bind to the metal, allowing for rapid and inexpensive detection at the location of sampling.

SourcePenn State·JournalJournal of the American Chemical Society·DateApr 23, 2019

How much time do Americans spend sitting?

The study found that Americans spent more time sitting, with 62% of children, adolescents, and adults watching TV or videos for at least 2 hours a day in 2015-2016. The proportion of people using computers during leisure time increased across all age groups from 43% to 56%.

SourceJAMA Network·JournalJAMA·DateApr 23, 2019

How light triggers brain activity

The discovery of channelrhodopsin-2 reveals two parallel paths in the activation of the ion channel by light, allowing for optimized applications in optogenetics. This understanding could lead to treatments for blind individuals and patients with agitated paralysis in Parkinson's disease.

SourceRuhr-University Bochum·JournalProceedings of the National Academy of Sciences·DateApr 23, 2019

Lessons from Hurricane Maria: Doctors offer tips to better prepare clinics for catastrophe

Radiation oncologists provide guidance on preparing for and responding to natural disasters, including creating emergency operations plans, providing patients with access to treatment plans via flash drives, and identifying alternative sources of power. The tips aim to minimize treatment delays during a disaster.

SourceAmerican Society for Radiation Oncology·JournalPractical Radiation Oncology·DateApr 22, 2019

Catalyst renders nerve agents harmless

Researchers at Brookhaven National Laboratory have developed a catalyst that efficiently decomposes nerve agents like sarin, eliminating their harmful effects. The multimodal approach used in the study identifies the active site of the catalyst and validates its effectiveness in real-life conditions.

SourceDOE/Brookhaven National Laboratory·JournalThe Journal of Physical Chemistry Letters·DateApr 22, 2019

Sand tiger sharks return to shipwrecks off N.C. coast

A new study reveals that female sand tiger sharks exhibit site fidelity to shipwrecks off the North Carolina coast, using them as rest stops or potential mates. The finding suggests that the wrecks are crucial habitats for this endangered shark species, which experienced significant population drops in the last century.

SourceDuke University·JournalEcology·DateApr 22, 2019

From coal to gas: How the shift can help stabilize climate change

A recent study by the National Institute for Environmental Studies suggests that transitioning from coal to natural gas can help stabilize climate change. The study found that natural gas power plants have smaller short- and long-term impacts than coal power plants, even when considering high methane leakage rates or uncertainty issues.

SourceNational Institute for Environmental Studies·JournalNature Climate Change·DateApr 22, 2019

Study suggests overdiagnosis of schizophrenia

A study published in the Journal of Psychiatric Practice found that about half of patients referred to a specialized schizophrenia clinic were misdiagnosed with schizophrenia. Anxiety and hearing voices were common reasons for incorrect diagnoses, highlighting the importance of second opinions from psychiatry specialists.

SourceJohns Hopkins Medicine·JournalJournal of Psychiatric Practice·DateApr 22, 2019

Diet, microbiome, and stress

Researchers found that a diet enriched with ω-3 PUFAs and vitamin A can normalize gut microbiome composition and hippocampal protein levels, leading to improved emotional and memory performance in stressed rats. The study also suggests long-term links between diet and cognitive function.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 22, 2019

Heterogeneous catalyst goes enzymatic

Researchers have developed an enzyme-like heterogeneous TiO2 photocatalyst with high catalytic activity for hydrogen production. The catalyst's unique enzymatic characteristics enable it to efficiently convert light energy into H2, rivaling the performance of expensive Pt-TiO2 photocatalysts.

SourceInstitute for Basic Science·JournalNature Materials·DateApr 22, 2019