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Science News Archive July 2022 - Page 16


Page 16 of 34

Scientists identify what makes the Delta variant dangerous and explain the recent surge in COVID-19 infections

Researchers analyze delta variant's biophysical characteristics, revealing unique traits that evade neutralizing antibodies and contribute to severe symptoms. The study sheds light on why vaccinated individuals can still contract the virus and why delta variant hospitalizations are higher than other variants.

SourceUniversity of Colorado Anschutz Medical Campus·JournalJournal of Molecular Biology·DateJul 18, 2022

The retron switch

Scientists identified that retrons encode toxin proteins kept inactive by a small DNA fragment, unleashing them upon viral attacks. The EMBL team discovered how retrons form antitoxins and found natural switches to trigger growth inhibition complexes.

Investigational blood tests can detect multiple signs of brain cancer to help improve diagnosis and monitoring

Researchers at Massachusetts General Hospital have developed a blood test that can detect multiple mutations associated with brain cancer, including EGFRvIII. The test showed high sensitivity and specificity, making it a powerful tool for diagnosing gliomas and monitoring tumor progression.

SourceMassachusetts General Hospital·JournalClinical Cancer Research·TypeExperimental study·DateJul 18, 2022

Robot dog learns to walk in one hour

Researchers at Max Planck Institute for Intelligent Systems created a robot dog named Morti that can walk smoothly within an hour. The robot uses a Bayesian optimization algorithm to learn from sensor data and adapts its virtual spinal cord, allowing it to optimize its walking pattern and minimize stumbling.

SourceMax Planck Institute for Intelligent Systems·JournalNature Machine Intelligence·TypeExperimental study·DateJul 18, 2022

Proportion of healthy-weight young people trying to shed the pounds in England nearly tripled

The proportion of healthy-weight young people trying to shed pounds in England has nearly tripled from around 1 in 20 to nearly 1 in 7 over 20 years. Reported slimming attempts among all children, particularly those who are overweight and obese, have shot up, surpassing the rise in excess weight gain and service provision.

SourceBMJ Group·JournalArchives of Disease in Childhood·TypeData/statistical analysis·DateJul 18, 2022

HKU Faculty of Dentistry utilises AI technology to automate the process of denture design and enhance treatment efficiency without compromising accuracy

The University of Hong Kong's Faculty of Dentistry has developed an AI-powered approach to automate denture design, allowing for high accuracy and reducing treatment time. The new method uses a 3D Generative Adversarial Network (3D-GAN) algorithm to reconstruct the shape of natural teeth and generate prosthetic teeth.

SourceThe University of Hong Kong·JournalPLOS ONE·TypeComputational simulation/modeling·DateJul 18, 2022

Researchers lift the veil on stubborn probiotic

NC State researchers discovered a new way to make the difficult-to-characterize gut bacterium Bifidobacterium more responsive to antibiotics. They also found tiny changes in different strains that reflect large differences in their characteristics, highlighting the need for individualized CRISPR-based genome engineering approaches.

SourceNorth Carolina State University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJul 18, 2022

Operando optical fiber monitoring of nanoscale and fast temperature changes during photo-electrocatalytic reactions

Researchers developed an optical fiber sensor to measure local temperatures on metal surfaces during photo-electrocatalytic reactions. The sensor achieved a thermal resolution of 0.1°C and temporal resolution of 0.1 seconds, revealing correlations between light-induced heating and catalytic activities.

A quantum wave in two crystals

A team of scientists has successfully built a neutron interferometer using two separate crystals, a major breakthrough in quantum physics. This achievement opens up new possibilities for quantum measurements and research on quantum effects in a gravitational field.

SourceVienna University of Technology·JournalJournal of Applied Crystallography·TypeExperimental study·DateJul 18, 2022

Study finds new links between dogs’ smell and vision

Researchers at Cornell University found connections between the brain's olfactory pathway and visual cortex in dogs, showing that olfaction is integrated with vision in terms of learning about the environment. This study corroborates clinical experiences with blind dogs who function remarkably well despite their condition.

SourceCornell University·JournalJNeurosci·DateJul 18, 2022

Diabetes: a step closer to a life without insulin

Researchers at UNIGE have found that the S100A9 protein can significantly improve insulin metabolism in diabetic patients, reducing the risk of severe side effects associated with insulin therapy. The protein's anti-inflammatory effect may also help to normalize ketone production and prevent life-threatening conditions.

SourceUniversité de Genève·JournalNature Communications·DateJul 18, 2022

UMass Amherst researcher uses graphene for same-time, same-position biomolecule isolation and sensing

New research by UMass Amherst professor Jinglei Ping demonstrates the use of graphene for electrokinetic biosample processing and analysis, allowing for faster and more efficient detection of biomolecules. This breakthrough enables the creation of smaller lab-on-a-chip devices with improved time and size efficiencies.

SourceUniversity of Massachusetts Amherst·JournalACS Nano·TypeExperimental study·DateJul 18, 2022

Skin: An additional tool for the versatile elephant trunk

Researchers found that an elephant's folded skin plays a crucial role in its flexible and strong trunk, enabling it to grasp fragile vegetation and rip apart tree trunks. The study suggests that wrapping soft robotics with a skin-like structure could give machines protection and strength while maintaining flexibility.

SourceGeorgia Institute of Technology·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateJul 18, 2022

Off-axis high-temperature hydrothermal field discovered at the East Pacific Rise 9°54'N

Researchers from Lehigh University discovered a new, high-temperature, off-axis hydrothermal vent field called YBW-Sentry. The field covers an area equivalent to a football field, roughly twice the size of nearby active vents, and is hotter than any other studied along this section of the East Pacific Rise.

SourceLehigh University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJul 18, 2022

Childhood loneliness linked to stress and problem drinking in young adults

A new study from Arizona State University found that childhood loneliness is strongly linked to increased stress levels and problem drinking in young adults. The research suggests that mitigating childhood loneliness could be a key strategy for reducing the risk of alcohol use disorders in adulthood, particularly among women.

SourceArizona State University·JournalAddictive Behaviors Reports·TypeExperimental study·DateJul 18, 2022

Cardiac death rates declined for both Black and white Americans since 1999, but racial disparities persist

Researchers found a decline in cardiovascular mortality rates for both Black and white adults over the last 20 years. However, significant disparities in cardiovascular mortality between Black and white adults continue to exist, particularly among younger Black women and those living in highly-segregated areas.

SourceBeth Israel Deaconess Medical Center·JournalCirculation·TypeData/statistical analysis·DateJul 18, 2022

Leading scientists use Genomics England data set to propose updated global guidelines to improve rare disease diagnosis

Leading scientists propose updated global guidelines to improve rare disease diagnosis using whole-genome sequence data, building on insights from Genomics England's rare disease participants. The guidelines aim to address the challenge of interpreting non-coding region variants and provide a framework for standardizing diagnoses.

SourceGenomics England·JournalGenome Medicine·TypeData/statistical analysis·DateJul 18, 2022

Over half of threatened species require targeted recovery actions

New research reveals that over half of threatened species require targeted recovery actions to ensure their survival. The study found that while expanding protected areas and reducing pollution will benefit many species, 57% would still need specialized interventions such as captive breeding, reintroduction, and vaccination.

SourceNewcastle University·JournalFrontiers in Ecology and the Environment·TypeData/statistical analysis·DateJul 18, 2022

With radically improved pain control, bone marrow donors can gift stem cells without worry of undue side effects or opioid use

Bone marrow donors can now receive significantly reduced opioid medication during and after the donation procedure, resulting in a more comfortable experience. The new pain control method, using regional anesthesia, drastically decreased opioid usage from 84% to 23% among patients.

SourceMedical University of South Carolina·JournalFrontiers in Medicine·TypeExperimental study·DateJul 18, 2022

Customized vortex beam creates golden opportunities for nanoimaging and communications

Researchers have developed a method to generate and control mid-infrared hyperbolic polariton vortices at the nanoscale, enabling new opportunities for super-resolution sensing, imaging, and communication systems. The study uses hexagonal boron nitride as a host material and achieves broad reconfigurability of topological charges.

Race-based spirometry equations may miss emphysema

A secondary analysis of the CARDIA Lung study found that a substantial proportion of middle-aged adults with normal spirometry findings had emphysema on CT scan. Race-specific interpretations of spirometry may underestimate respiratory symptom burden and risk for death in Black adults, perpetuating structural racial inequities.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeObservational study·DateJul 18, 2022