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Science News Archive 2021


Page 85 of 510

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.

Apple iPhone 17 Pro

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

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.

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 ...

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.

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.

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.

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.

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.

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.

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.

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.

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.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

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.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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...

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

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.

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.

Meta Quest 3 512GB

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

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.

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.