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Science News Archive 2021 - Page 85


Page 85 of 510

Survey of US dentists shows high rate of opioid prescriptions despite knowledge of effective alternatives

A survey of US dentists found that an overwhelming majority believe nonsteroidal anti-inflammatory drug (NSAID)-acetaminophen combinations are as effective or more effective in managing dental pain as opioids. However, nearly half still prescribe opioids, highlighting a disconnect between their knowledge and prescribing habits.

SourceGeorgetown University Medical Center·JournalThe Journal of the American Dental Association·TypeSurvey·DateOct 21, 2021
Apple iPhone 17 Pro

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

Study offers snapshot of celebs’ social media influence on COVID-19 info

A study published in the Atlantic Journal of Communication analyzed Instagram posts from 20 celebrity influencers about COVID-19 between March and May 2020. The researchers found that celebrities initially modeled guidance from health experts, normalizing suggested behaviors such as staying home and practicing hand hygiene.

SourceUniversity of Texas at Dallas·JournalAtlantic Journal of Communication·TypeData/statistical analysis·DateOct 21, 2021

COVID-19 vaccine gets strong response in some with weak immunity

A recent study by Cedars-Sinai Medical Center found that COVID-19 mRNA vaccines induced detectable antibodies in 99% of patients with bowel disease, regardless of their immunocompromising therapies. Researchers also noted a correlation between the antibody response and effective immunity in the community.

SourceCedars-Sinai Medical Center·JournalAnnals of Internal Medicine·TypeExperimental study·DateOct 21, 2021

How to make a better polymer

A team of researchers at UMass Amherst has developed a method to count the number of strength-enabling entanglements in glassy polymers, which can be used to create stronger, more cost-effective materials. By combining computer simulations with experimental processes, they found that not every entanglement contributes to the polymer's ...

SourceUniversity of Massachusetts Amherst·JournalScience Advances·DateOct 21, 2021

Artificial intelligence spots anomalies in medical images

Researchers have trained a neural network to detect anomalies in medical images, adapting it to the nature of medical imaging and achieving better results. The new method uses weakly supervised training and can spot small-scale anomalies, accelerating the work of histopathologists and radiologists.

SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalIEEE Access·DateOct 21, 2021
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.

Supernova: A glowing DNA enzyme

Researchers at IOCB Prague have created a glowing DNA enzyme called Supernova, which catalyzes a chemiluminescent reaction. This breakthrough uses artificial evolution to identify light-producing deoxyribozymes in a vast library of DNA molecules, opening up new possibilities for point-of-care assays and high-throughput screens.

SourceInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague)·JournalAngewandte Chemie·TypeExperimental study·DateOct 21, 2021

Neuroscientists see how practice really does make perfect

Researchers at Duke University used new tools to monitor neurons and analyze machine learning data to see how zebra finches practice their courtship calls. They found that a neurotransmitter called noradrenaline shuts down variability in the song, making it more precise when performed under pressure.

SourceDuke University·JournalNature·TypeData/statistical analysis·DateOct 21, 2021

Understanding consumer perceptions of sustainability in the dairy industry

Consumer definitions of sustainability differ from industry definitions, affecting perception and purchase intent. Consumer perspectives consider multiple factors like packaging, animal welfare, organic status, and grass-fed systems, with some associating terms like 'organic' with healthier practices.

SourceElsevier·JournalJournal of Dairy Science·DateOct 21, 2021

Hidden costs of global illegal wildlife trade

The global illegal wildlife trade has a substantial impact on biodiversity loss, human health, and ecosystems. The trade results in estimated costs of $162.7 billion annually and contributes to the extinction of native species.

SourceUniversity of Adelaide·JournalBiological Conservation·TypeContent analysis·DateOct 21, 2021
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.

Quantum enhanced convolutional neural networks for NISQ computers

This work proposes a hybrid quantum-classical convolutional neural network that leverages the power of quantum computing to enhance machine learning. The quantum feature map allows for a much larger feature space exploration, potentially leading to higher learning accuracy.

SourceScience China Press·JournalScience China Physics Mechanics and Astronomy·DateOct 21, 2021

Crisis pregnancy centers may be hurting public health efforts

New research from the University of Georgia reveals that crisis pregnancy centers offering STI and HIV services are not meeting quality care standards. Many CPCs fail to offer comprehensive testing, treatment, or referrals, despite advertising as medical facilities.

SourceUniversity of Georgia·JournalSexually Transmitted Diseases·DateOct 21, 2021

Fingerprinting proteins with force

Researchers develop DNA Nanoswitch Calipers to measure distances within single molecules using force, enabling the identification of single proteins in samples. This technique creates a unique 'fingerprint' that can be used to identify known molecules or infer structural information about unknown ones.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalNature Nanotechnology·TypeExperimental study·DateOct 21, 2021
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.

Prozac pegged as potential 1st treatment for leading cause of blindness

Researchers at UVA Health System found that fluoxetine, an antidepressant commonly known as Prozac, shows promise against age-related macular degeneration. Patients taking fluoxetine were less likely to develop dry AMD, a condition affecting nearly 200 million people worldwide.

SourceUniversity of Virginia Health System·JournalProceedings of the National Academy of Sciences·DateOct 21, 2021

New online tool helps keep college campuses smoke and tobacco free

A recent study confirms the effectiveness of Tobacco Tracker in shaping college attitudes and behaviors towards smoke and tobacco-free (STF) policies. The online tool resulted in doubled awareness, tripled use, and increased support for STF policies on two California public universities.

SourceUniversity of California - Davis Health·JournalNicotine & Tobacco Research·TypeData/statistical analysis·DateOct 21, 2021
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

How asteroid, comet strikes may have delayed evolution of the atmosphere

Researchers found asteroid and comet collisions occurred more frequently than thought, potentially delaying oxygen accumulation in the atmosphere. The study suggests that these impacts may have created an 'oxygen sink' that reduced atmospheric oxygen levels.

SourceHarvard University·JournalNature Geoscience·TypeComputational simulation/modeling·DateOct 21, 2021

Chip-based optical tweezers levitate nanoparticles in a vacuum

Researchers created tiny chip-based optical tweezers that can be used to optically levitate nanoparticles in a vacuum, reducing the footprint of traditional optical traps. The new design enables precise sensing applications and has potential uses for studying near-surface forces and quantum processes.

SourceOptica·JournalOptica·DateOct 21, 2021

Fat cells found to play a central role in cognitive decline and neurodegeneration

A new study published in iScience reveals that fat cells play a central role in cognitive decline and neurodegeneration by controlling the systemic response to brain function. Targeting fat cells may improve outcomes for neurodegenerative disorders, according to researchers at Marshall University.

SourceMarshall University Joan C. Edwards School of Medicine·JournaliScience·DateOct 21, 2021
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

SwRI-led team produces a new Earth bombardment model

A new model by a SwRI-led team applies geologic evidence to understand how oxygen levels in the Earth's atmosphere evolved. The results indicate that large impacts may have contributed to the scarcity of oxygen, delaying its oxidation.

SourceSouthwest Research Institute·JournalNature Geoscience·DateOct 21, 2021

Fungal outbreak in marine mammals began on land

A study explores how human activities on land can affect aquatic animals, specifically the fungal pathogen Cryptococcus gattii. The research found that terrestrial hotspots were likely where spores settled before infecting marine mammals in the Salish Sea.

SourceUniversity of California - Davis·JournalDiseases of Aquatic Organisms·TypeData/statistical analysis·DateOct 21, 2021

Prefrontal neurons in monkeys and bats facilitate group communication

Studies in rhesus monkeys and Egyptian fruit bats found that prefrontal neurons represent details of interactions, including identity context and history. This discovery sheds light on the neural mechanisms underlying complex social structures and group communication.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateOct 21, 2021

Modeling cellular migration

Researchers develop 3D simulation capturing how cells containing vimentin move through body tissue, crucial for understanding cancer spread and wound healing. The study reveals vimentin's protective role in nuclear DNA and its potential as a target for cancer treatment.

SourceSyracuse University·JournalNew Journal of Physics·DateOct 21, 2021
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.

Topological holographic quench dynamics in a synthetic frequency dimension

Researchers developed a method to detect topological phase using quench dynamics and synthetic frequency dimension, simplifying the characterization of non-equilibrium states. The study proposes a new approach for performing dynamical characterization of topological quantum phases in different models.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateOct 21, 2021

COVID vaccine booster increases antibody responses, is protective in rhesus macaques

A COVID vaccine booster dose increased levels of neutralizing antibodies against all known SARS-CoV-2 variants of concern. The boost was sustained for at least eight weeks and generated high-level protection against severe disease, suggesting a strong immune memory response and potentially longer lasting immunity.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience·DateOct 21, 2021
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 traffic light for light-on-a-chip

A team of researchers at EPFL and Purdue University has developed a magnetic-free optical isolator using integrated photonics and micro-electromechanical systems. This device can couple to and deflect light propagating in a waveguide, mimicking the effects of magnet-driven isolators without requiring magnetic fields.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Photonics·DateOct 21, 2021

Thinking collectively to understand the social intelligence of animals

Researchers are using social neuroscience to study how individual brains synchronize during group interactions, revealing key findings on animal cognition and collective decision-making. This new approach has implications for understanding human social intelligence and the potential for virtual collective dynamics.

SourceInstitut du Cerveau (Paris Brain Institute)·JournalScience·DateOct 21, 2021

Photon-counting distributed free-space spectroscopy

A team of scientists developed a photon-counting distributed free-space spectroscopy (PDFS) to analyze atmospheric gas composition. The method provides range-resolved spectra of CO2 and HDO over 6 km, offering insights into chemical processes in the atmosphere.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateOct 21, 2021

Early dinosaurs may have lived in social herds as early as 193 million years ago

A new study reveals that early dinosaurs, such as Mussaurus patagonicus, likely formed complex herds with adults foraging and taking care of young. Fossils found in southern Patagonia indicate an age segregation, suggesting a larger community structure where adults shared in raising the whole community.

SourceMassachusetts Institute of Technology·JournalScientific Reports·DateOct 21, 2021
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

On the hunt for hypernuclei: The WASA detector at GSI/FAIR

GSI/FAIR researchers aim to study properties of hypernuclei, which could shed light on neutron star phenomena. The WASA detector will help determine binding energy and lifetimes with higher detection efficiency.

SourceGSI Helmholtzzentrum für Schwerionenforschung GmbH·JournalNature Reviews Physics·TypeNews article·DateOct 21, 2021

‘Raptor-like’ dinosaur discovered in Australian mine, actually uncovered as a timid vegetarian

A 'raptor-like' dinosaur was actually a timid, long-necked herbivore, according to recent reanalysis of fossil footprints found in an Australian coal mine. The Prosauropod, a plant-eating dinosaur with legs about 1.4 metres tall and a body length of six metres, is the earliest evidence of its kind in Australia, marking a 50-million-yea...

SourceTaylor & Francis Group·JournalHistorical Biology·DateOct 21, 2021

Novel peroxide-based material emits fluorescence in response to stress

Researchers have synthesized a novel organic peroxide mechanophore that releases fluorescence in response to mechanical stress. The compound, bis(9-methylphenyl-9-fluorenyl) peroxide (BMPF), was incorporated into a polymer network and found to retain its ability to release a fluorescent molecule when subjected to grinding or compression.

SourceTokyo Institute of Technology·JournalJournal of the American Chemical Society·TypeExperimental study·DateOct 21, 2021

Cell-free DNA identifies early signs of relapse in pediatric medulloblastoma

Researchers at St. Jude Children's Research Hospital have developed a test to detect measurable residual disease (MRD) in children treated for medulloblastoma, identifying those at risk of relapse earlier than traditional imaging scans. The study found that cell-free DNA in cerebrospinal fluid can be used to predict relapse and potenti...

SourceSt. Jude Children's Research Hospital·JournalCancer Cell·DateOct 21, 2021
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Rethinking grid integration of a massive renewable power expansion to achieve carbon neutrality in China and beyond

A new model suggests that integrating massive offshore wind generation, power storage, electric vehicles, green hydrogen production, and expanded transmission can reduce costs of renewable power integration into the grid. This strategy could make achieving China's carbon neutrality by 2050 feasible without significantly increasing costs.

SourceHarvard John A. Paulson School of Engineering and Applied Sciences·JournalJoule·DateOct 21, 2021
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.

New material could pave way for better, safer batteries

Researchers develop solid-state battery material derived from trees, offering improved ion conductivity and potential solutions to safety concerns. The new material could enable the mass market adoption of solid-state battery technology.

SourceBrown University·JournalNature·TypeExperimental study·DateOct 21, 2021

Large climate benefits could be achieved by reducing nitrous oxide emissions over small fraction of the world’s croplands

A new study maps global cropland nitrous oxide emissions and finds that reducing fertilizer application over 20% of the world's croplands could achieve 65% of global mitigation potential. The research identifies hotspots of high emissions in humid subtropical regions, where climate and soil characteristics play a significant role.

SourcePeking University·JournalNature Food·DateOct 21, 2021

Astronomers provide 'field guide' to exoplanets known as hot Jupiters

Researchers used Hubble Space Telescope observations and theoretical models to study a broader population of hot Jupiters. The study provides insight into planet formation and suggests that these planets contain similar sets of molecules, including water and carbon monoxide.

SourceUniversity of Arizona·JournalNature Astronomy·TypeData/statistical analysis·DateOct 21, 2021

Skin-inspired sensors show how our body moves

Scientists at the University of Groningen developed wearable, stitchable, and sensitive sensors from flexible polymers and carbon fibre. These sensors can measure body position, movement, and touch, offering new possibilities for health monitoring and athlete performance tracking.

SourceUniversity of Groningen·Journalnpj Flexible Electronics·TypeExperimental study·DateOct 21, 2021
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.

First-ever Africa-wide great ape assessment reveals human activity, not habitat availability, is greatest driver of ape abundance

A new study assesses Africa-wide great ape populations and finds that human activities, such as GDP, roads, and population density, are the strongest factors predicting abundance. Only 10.7% of predicted apes were found in areas with high levels of legal protection.

SourceWildlife Conservation Society·JournalAmerican Journal of Primatology·TypeMeta-analysis·DateOct 21, 2021

Emergence of a novel reassortant avian influenza virus (H10N3) in Eastern China

A novel reassortant H10N3 avian influenza virus emerged in Eastern China, exhibiting high pathogenicity and respiratory droplet transmissibility to mammals. The virus was isolated from poultry and showed affinity for both avian-type and human-type receptors, posing a significant threat to public health.

SourceScience China Press·JournalScience China Life Sciences·DateOct 21, 2021

Evaluating protection against SARS-CoV-2 Beta variant in vaccine-boosted nonhuman primates

A new study shows that boosting nonhuman primates with the Moderna vaccine six months after their primary series increases neutralizing activity against viral variants of concern. The boost sustained antibody responses for at least eight weeks, suggesting significant B cell memory induced by primary vaccination.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateOct 21, 2021
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Spending time in nature promotes early childhood development

A UBC study found that children living in areas with high greenspace exposure showed better overall development than peers with less access. Greenspaces reduce the negative impacts of air pollution and noise on children's health and development.

SourceUniversity of British Columbia·JournalThe Lancet Planetary Health·TypeData/statistical analysis·DateOct 21, 2021