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Science News Archive August 2020 - Page 10


Page 10 of 45

One size may not fit all: BILH psychiatrists develop mental health app assessment tool

Researchers from Beth Israel Deaconess Medical Center and Lahey Hospital & Medical Center developed an online assessment tool to help patients and providers make informed decisions about choosing mental health apps. The tool, currently featuring over 200 apps, allows users to filter by safety, ease of use, and user privacy.

SourceBeth Israel Deaconess Medical Center·Journalnpj Digital Medicine·DateAug 25, 2020

Using light's properties to indirectly see inside a cell membrane

Researchers have developed a new imaging technique called single-molecule orientation localization microscopy (SMOLM) that allows them to distinguish between different phases of lipid molecules in cell membranes. This technique uses fluorescent probes to directly 'see' the probe's orientation and determine its chemical composition.

SourceWashington University in St. Louis·JournalAngewandte Chemie International Edition·DateAug 25, 2020

Changing ties that naturally bind

A collaborative research group from Kyoto University investigates how animals balance information sharing with disease risk to form social networks. They propose an integrative framework that incorporates deleterious forms of social transmission, like infectious diseases.

Most adults with lupus or common types of arthritis have similar risks of getting admitted to hospital as other COVID-19 patients

Most adults with systemic lupus erythematosus (SLE) and common forms of arthritis are not at increased risk of hospitalization from COVID-19, despite taking immunosuppressive medications. Hospitalization rates for these groups are similar to those for the general population.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalArthritis & Rheumatology·DateAug 25, 2020

Changing landscapes, changing diets

Researchers analyzed fossilized teeth of ancient herbivores to reveal dietary shifts from woody vegetation to grasses and sedges, around 2.7-2 million years ago. The findings suggest that behavioral dietary changes can precede apparent morphological adaptations in hominins.

SourceGeorge Washington University·JournalProceedings of the National Academy of Sciences·DateAug 25, 2020

A colorful detector

Researchers at the University of Tsukuba have developed a new crystalline material that reversibly changes color from yellow to red when absorbing water, indicating the presence of water. This work could lead to the creation of highly sensitive vapochromic sensors that can detect gases or water vapor without external power.

SourceUniversity of Tsukuba·JournalCommunications Chemistry·DateAug 25, 2020

Sedentary behaviour on the rise across Europe

A study published in BMC Public Health found a significant increase in sedentary behaviour across Europe, with 54.3% of adults spending more than four-and-a-half hours sitting per day in 2017. The research also showed that young and older adults were equally affected, but the age group with the largest increase was those aged 35-44.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateAug 25, 2020

Building mechanical memory boards using origami

Scientists have developed a paper-based mechanical memory board by folding paper using the Kresling pattern, generating a switch that can be controlled using vibrations. By placing multiple switches on a single platform, researchers created a functioning mechanical memory board with wide applicability for future device development.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateAug 25, 2020

Beating noise via superposition of order

Researchers at UQ and Griffith University use quantum superposition of order to successfully transmit information through two noisy channels. The technique, which can nullify the effect of one noisy medium on another, has potential applications in satellite communication and secret sharing.

SourceUniversity of Queensland·JournalPhysical Review Research·DateAug 25, 2020

COVID-19 human milk studies should continue without stopping breastfeeding

Breastfeeding and human milk are critical to maternal and infant health outcomes during public health emergencies. Current COVID-19 recommendations contradict WHO guidance, disproportionately harming Black, Indigenous, and People of Color communities. Studies must be conducted with a racial equity lens to provide evidence-based guidance.

SourceWashington University in St. Louis·JournalAmerican Journal of Human Biology·DateAug 25, 2020

Study shows socioeconomic status linked to heart failure mortality in United States

A new US study found that socioeconomic factors are linked to heart failure mortality rates in the United States. The study analyzed over 1.2 million deaths from heart failure across 3,048 counties between 1999 and 2018, revealing significant disparities in mortality rates based on measures of wealth and social deprivation.

SourceUniversity Hospitals Cleveland Medical Center·JournalJournal of Cardiac Failure·DateAug 25, 2020

Stronger together in the microbiome: How gut microbes feed each other to overcome dietary deficiencies, change host behavior, and improve reproduction

A team of researchers found that two specific gut bacteria establish a metabolic cross-feeding mechanism, enabling them to grow in diets lacking essential nutrients. This interaction also affects the fly's feeding behavior, reproduction, and brain function, making the microbiome more resilient to dietary changes.

SourceChampalimaud Centre for the Unknown·JournalNature Communications·DateAug 25, 2020

Moving bits, not watts

Researchers propose moving workloads to different regions to reduce excess renewable energy generation, saving companies money and reducing greenhouse gas emissions. The plan could absorb up to 62% of curtailed electricity capacity in California, equivalent to 100,000 households' annual energy consumption.

Studying water polo for kicks

Water polo players use efficient 'eggbeater' kicks to elevate themselves in the water, exceeding biomechanical predictions. The high efficacy of this technique may lead to optimized sports performance and new underwater propulsion methods.

SourceUniversity of Tsukuba·JournalSports Biomechanics·DateAug 25, 2020

Quantum simulation for 3D chiral topological phase

Researchers simulated a 3D chiral topological insulator using nitrogen-vacancy centers, observing dynamical bulk-surface correspondence and symmetry protection in momentum space. They measured spin textures on band inversion surfaces, revealing perfect (broken) topology depending on the preserved or broken chiral symmetry.

SourcePeking University·JournalPhysical Review Letters·DateAug 25, 2020