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Science News Archive 2021


Page 259 of 510

New COVID-19 content from Annals of Internal Medicine

A recent study found that daily COVID-19 testing in the NFL enabled early detection of infections, even among asymptomatic individuals. The study also revealed disparities in vaccination rates among healthcare workers, with lower rates among Black and Hispanic employees compared to their Asian and White counterparts.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Microbes in ocean play important role in moderating Earth's temperature

Researchers discovered methane-eating microbes in seafloor carbonate rocks that consume methane 50 times faster than in sediment, highlighting their crucial role in regulating Earth's temperatures. The porous nature of these rocks facilitates the growth and exchange of microbes, allowing them to thrive and maintain high metabolic rates.

Postop chylothorax treated with intranodal lymphangiography, ethiodized oil

High-dose intranodal lymphangiography with ethiodized oil has been shown to be a safe and effective procedure for treating high-output postsurgical chylothorax, with a success rate of 83%. The procedure involved injecting higher doses of ethiodized oil, which led to resolution of symptoms in most patients.

Barks in the night lead to the discovery of new species

A new study identifies a separate species of tree hyrax, Dendrohyrax interfluvialis, which inhabits the wet and dry forests between the Volta and Niger rivers in West Africa. The species is characterized by distinct barks, anatomical differences, and genetic distinctness from other hyrax lineages.

AI-driven soldier technology wins praise from engineering society

Researchers developed resource-efficient federated learning to train analytic models on local data, enabling coalition partners to learn similar tasks without sharing sensitive data. The new technology provides cutting-edge capability over adversaries and is crucial for defense applications.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Paleolithic transitions in the Levant

A new study in the Proceedings of the National Academy of Sciences reveals evidence of an early transition to the Upper Paleolithic period in the Levant, dating back 50,000 years. The shift is marked by changes in stone tool production and is thought to have coincided with the arrival of Homo sapiens.

SAMSUNG T9 Portable SSD 2TB

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Harmful protein waste in the muscle

Researchers identified a rare genetic mutation causing severe muscle damage and heart failure in children. Experimental approaches for treatment were successful in mice, offering hope for potential therapies.

Domesticated foxes display increased size in brain regions

A new study reveals that both tame and aggressive silver fox breeds have larger brains and more grey matter than their control group counterparts. This finding contradicts previous studies on other domesticated animals, which showed smaller brain sizes with less grey matter.

Water management and riparian forests

Researchers analyzed satellite imagery and groundwater data from 2015-2020, finding that current practices threaten riparian ecosystems' long-term survival. The study suggests a need for revised water management strategies to mitigate water stress and preserve these critical environments.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

A new model of Alzheimer's progression

A new study from Arizona State University and MIT sheds light on how Alzheimer's disease manifests in patients, highlighting the link between toxic proteins, neurodegeneration, and glial cells. The analysis captures a detailed molecular profile of changes in protein levels and alterations in brain tissue.

RNA: A new method to discover its high-resolution structure

A new study combines experimental data and molecular dynamics simulations to study the conformation of an RNA fragment involved in protein synthesis. The research led to a new method for defining biomolecule structures in their physiological environments.

Near-field routing of hyperbolic metamaterials

Hyperbolic metamaterials enable subwavelength confinement of electromagnetic waves, allowing for flexible control of near-field light propagation. The researchers used an all-electric scheme to selectively couple near-field light in HMMs, enabling unidirectional excitation of hyperbolic modes.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

New research shine light on perovskite solar cell performance

Researchers found a correlation between intragrain planar defects and reduced solar cell performance in perovskite materials. Tuning the chemical composition of these films controlled the presence of defects, leading to improved solar cell efficiency.

NASA Snow Campaign Wraps for 2021

The SnowEx team studied snowpack in diverse environments, collecting data on snow depth, density, temperature, and reflectivity. They also tested how well various techniques can measure snow using drones, airplanes, and ground-based remote sensing tools.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

A 'pump' gene's surprising role in early brain formation

Researchers identified the ATP1A3 gene as critical to many cell biological processes, enabling electrical currents to flow into or out of cells and driving essential brain functions. The study found that this gene plays a key role in early brain development, particularly in the prefrontal cortex and subplate layer.

$7 million to advance cardiovascular research

Researchers will examine regulation and disease relevance of alternative splicing in different types of heart cells. The project aims to map the path from splicing factor discovery to drug development.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Biodiversity 'hotspots' imperiled along California's streams

A study reveals that California's stream ecosystems are being harmed by human-diverted water, creating an unintended dependence on artificial supplies. This threatens the long-term survival of natural communities and highlights the need for changes in water management.

Eco-friendly technology to produce energy from textile waste

Scientists have developed a method to convert lint-microfibers from clothes dryers into energy, producing oil, gas, and char with a 70% conversion rate. The technology has been estimated to be profitable and eco-friendly, reducing carbon footprint by 42,039,000kg CO2-eq/t of lint-microfibers.

Scientists expose the cold heart of landfalling hurricanes

Researchers used simulations to explore the fate of landfalling hurricanes, discovering that cold cores grow from the bottom of the hurricane as it decays. This unexpected finding could help forecasters predict extreme weather events and distinguish between decaying and re-intensifying storms.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

New research finds 1M deaths in 2017 attributable to fossil fuel combustion

A comprehensive study published in Nature Communications found that more than one million deaths worldwide were attributed to fossil fuel combustion in 2017. The research used a global dataset of air pollution emissions and modeling to identify specific sources of pollution, including coal, energy production, and cookstoves.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Toxin-adapted fish pass down epigenetic mutations to freshwater offspring

Researchers found that toxin-adapted fish passed on epigenetic mutations to their freshwater offspring, with an 80% overlap in DNA methylation regions. This study provides evidence for the long-term effects of toxic exposure on epigenetics, with implications for understanding human health and environmental adaptations.

Climate change leads to unprecedented Rocky Mountain wildfires

The 2020 fire season marked a turning point in the history of high-elevation forests in the Rocky Mountains. Researchers found that fires are now burning nearly twice as much area on average compared to the last 2,000 years. This increased frequency and severity pose significant risks for forest resilience and regeneration.

Making a meal of DNA in the seafloor

Specialized bacteria in the oceans' seafloor have been found to consume and recycle DNA from dead biomass, a process that plays a crucial role in global biogeochemical cycles. The study identified novel DNA-eating bacteria, including the species Izemoplasma acidinucleici, which have sophisticated tools for degrading DNA.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

New health benefits of red seaweeds unveiled

Researchers at the Carl R. Woese Institute for Genomic Biology discovered that red seaweed contains sugars that serve as food for probiotic bacteria, improving gut health. The study found that these sugars, particularly agarotriose and AHG, inhibit the growth of human colon cancer cells.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Kirigami-inspired stent offers new drug delivery method for tubular organs

A multidisciplinary team from Brigham and Women's Hospital has designed a stretchable stent based on the principles of kirigami that can support rapid deposition of drug depots. The researchers coated the design with budesonide-loaded polymeric micro-particles to support extended drug delivery, which was tested in the esophagi of pigs.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Das researching use of artificial intelligence

A team of researchers, led by Sanmay Das from George Mason University, is exploring the use of artificial intelligence (AI) to develop novel methods for allocating scarce housing support to at-risk households. The goal is to improve service system outcomes and prevent homelessness, while ensuring fairness and equity.

Researchers receive funding for project supporting STEM educators

The project aims to increase the number of STEM secondary teaching careers by mentoring and supporting new teachers through their first year and beyond. The researchers will work with Virginia Community College System, Prince William County schools, and Fairfax County schools to recruit, mentor, and retain 35 prospective teachers.

Hair follicles heal blisters at personal cost

Researchers discovered that hair follicle stem cells play a key role in healing skin blisters, which delays the growth of hair follicles in regenerated skin tissue. This balance between wound healing and development has implications for treating epidermolysis bullosa, pemphigoid diseases and other blistering conditions.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Pollutant concentration increases in the franciscana dolphin

A study led by the University of Barcelona found increased pollutant concentrations in Franciscana dolphin bone remains, primarily from trace elements such as chromium and copper. The increases are linked to human activities like industrial waste and transportation, which accumulate pollutants in the Rio de la Plata estuary.

Impact of digitization on democracies

The symposium aims to discuss associated risks, policy options, and trends from a scientific point of view. Key experts from Germany, Israel, and the US will share their insights on fake news, hate speech, and conspiracy theories' influence on democratic participation.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Insulators turn up the heat on quantum bits

Researchers at the University of Innsbruck develop new method to assess influence of dielectric materials on charged particles in ion traps, enabling more accurate design and minimization of noise in quantum computers. The breakthrough improves understanding of sources of error in ion trap quantum computing.