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Science News Archive 2021


Page 178 of 510

Alginic acid improves artificial bones, study shows

A study published in the Journal of Materials Science: Materials in Medicine found that alginic acid improves artificial bones by increasing porosity, compressive strength, and setting time. The addition of alginic acid to calcium phosphate cement enhances its mechanical properties, allowing for more effective bone replacement.

A protein-based COVID-19 vaccine that mimics the shape of the virus

Researchers developed a protein-based COVID-19 vaccine that mimics the SARS-CoV-2 virus shape, eliciting both antibody and T cell responses. The vaccine, using polymersomes decorated with multiple copies of the receptor binding domain antigen, shows promise for longer-lasting immunity.

Apple iPhone 17 Pro

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

A COVID-19 vaccine strategy to give the body ‘border protection’

A new research strategy enhances COVID-19 vaccine effectiveness by providing 'border protection' immunity in the nose, mouth and blood. The approach involves suppressing an enzyme that breaks down both pathogens and immune cells, resulting in a robust antibody response and improved protection against infections.

A brief history of the cabbage butterfly’s evolving tastes

Researchers used statistical models to study the co-evolutionary history of pierid butterflies and their host plants. They found that butterfly-plant relationships are resilient to changes in species composition but can destabilize over larger structural changes.

It was figured out how to dispose of metallurgical slag

Scientists at Ural Federal University and RAS developed a technology to process metallurgical slag into valuable materials such as cast iron and Portland cement clinker. The technology eliminates the problem of environmental pollution by industrial enterprises.

New technique illuminates DNA helix

Researchers have developed a new method to measure DNA torsional stiffness, which can impact how cells work. The technique provides insights into the biological implications of twist-induced phase transitions in DNA.

Meta Quest 3 512GB

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

Neural correlate of Pavlovian conditioning

Researchers at NICT unraveled a neural correlate of Pavlovian conditioning, discovering that alteration in information processing by feeding command neurons governs behavioral change. The experimental system made possible real-time observation of cell-cell connection for memory formation.

Characteristics of patients With sunburn

Researchers analyzed claims data to identify key demographic characteristics of patients receiving a sunburn diagnosis. The study found that patients with sunburn tend to be older, female, and have a history of previous sunburns or skin cancers.

Food scientists create national atlas for deadly listeria

A new genomic and geological mapping tool helps track listeria found in ingredients, processing facilities and finished products by pinpointing sources of contamination. The nationwide atlas reveals the natural distribution of listeria across the US, aiding in the identification of risk areas.

Tiny bubbles: Treating asthma with gene silencing nanocapsules

Researchers developed gene silencing nanocapsules to target GATA-3, a component of the immune response leading to allergic asthma attacks. The treatment showed promise in reducing inflammatory damage and presence of eosinophils in an allergic asthma mouse model and human white blood cells.

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.

UCI study finds targeting mitochondria shows promise in treating obesity

A team of University of California, Irvine scientists discovered a novel pharmacological approach to attenuate mitochondrial dysfunction that drives diet-induced obesity. They found that a small molecule, SH-BC-893, can correct metabolic disease even when mice continue to consume an unhealthy Western diet.

‘Sticky questions’ raised by study on coral reefs

A new study on coral reefs in Kiribati found that more polluted and high-traffic waters can handle extreme heat events better than remote reefs. The research raises questions about the effectiveness of marine protected areas in conserving coral reefs.

New technique identifies proteins in the living brain

A new study developed a successful approach for identifying proteins in different types of neurons in the brain of a living animal. The technique uses a virus to tag neighboring proteins, allowing researchers to analyze the entire proteome inside living neurons.

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.

When the brain’s GPS goes off the grid

A new study on bats reveals that their brain's GPS system represents three-dimensional space in a unique way, with grid cells packed like spheres rather than circles. The researchers found that this arrangement allows for local order but lacks global symmetry.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Enabling the next generation of organic solar cells

Researchers at the University of Cambridge have discovered a new way for energy to move in organic materials, allowing for faster conversion of sunlight into electrical power. This fundamental mechanism, called transient exciton delocalization, enables efficient energy transport in organic semiconductors.

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.

Engineers uncover the secrets of fish fins

A team of engineers discovered that the unique design of fish fins, with layered structures made up of stiff and soft materials, enables them to achieve remarkable dexterity and flexibility. This finding could lead to new materials and technologies for robotic applications and aircraft design.

Sugary drink consumption plunges in Chile after new food law

A new study found that Chile's package of healthy food policies led to significant declines in the purchase of unhealthy foods and drinks. The implementation of mandatory front-of-package warning labels resulted in a 24% reduction in calories, sugar, saturated fat, and sodium purchased per day.

Tuning gold nanoclusters for targeted gastric cancer therapy

Gold nanoclusters have emerged as a promising material for cancer nanomedicine due to their excellent biocompatibility and efficient renal clearance. The researchers designed multifunctional AuNCs with a therapeutic component and targeting action, demonstrating the potential for targeted gastric cancer therapy.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Global changes in mesothelioma cases, deaths

Researchers estimated a significant increase in global mesothelioma cases and deaths from 1990 to 2017. The study found that asbestos exposure remains a well-established risk factor for the disease.

Novel technique seamlessly converts ammonia to green hydrogen

A research team at UNIST has developed a novel technique that converts liquid ammonia into green hydrogen with high purity and efficiency. The method consumes significantly less power than traditional electrolysis of water, making it an attractive alternative for hydrogen production.

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.

Anatomy of an earthquake series

A new study published in Nature Communications reveals that seismicity at the Castor gas reservoir was triggered by pore pressure diffusion and the failure of loaded asperities on a shallow fault. The research identified three phases of the crisis, including a fast backward migration of earthquakes that resulted in the largest tremors.

Study provides suggestions for keeping classroom air fresh

A new MIT study highlights the importance of careful classroom ventilation in reducing the spread of Covid-19 aerosols. Researchers found that certain configurations, such as closed windows and limited upward air movement, can lead to higher concentrations of potentially problematic aerosols.

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.

AI DBT impact on mammography post-breast therapy

A single-center retrospective study found that AI-CAD reduced recall rates and improved accuracy compared to digital mammography (DM) and DBT. The study showed lower recall rates and higher accuracy for DM with AI-CAD, indicating a practical addition to lowering false-positive findings.

With AI, your car can detect potholes

A research team developed an AI-based automatic pothole detection system that detects potholes in real-time using a vision sensor installed on the windshield of a vehicle. The system shows robust detection performance with road images taken under different brightness conditions, improving road safety and efficiency.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Impenetrable optical OTP security platform

A POSTECH research team has developed an encrypted hologram printing platform that works in both natural light and laser light using the metasurface technology. The device can produce a holographic color image retaining specific polarization, setting it apart from previously reported holograms.

P-orbital magnetic topological states on square lattice

A new materials-independent mechanism for magnetic topological states is proposed, resulting in a family of 2D magnetic topological materials with high Chern numbers. The study reveals stable ferromagnetism and high Curie temperatures, sparking further experimental explorations.

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.

Brain gene expression patterns altered by chronic opioid use

A new study has found that chronic opioid use changes gene expression in the brains of people with opioid use disorder (OUD), suggesting proinflammatory signaling and synaptic remodeling. The affected genes involved in immune response and neuronal connections were also identified, offering new targets for treatment.

Study of skull birth defect takes it from the top

Researchers created the first detailed cell-by-cell description of how the coronal suture develops, identifying new genes and cell types involved in generating stem cells that grow skull bones. The study aims to advance new interventions for patients with craniosynostosis.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

System trains drones to fly around obstacles at high speeds

Researchers at MIT have created an algorithm that enables drones to navigate complex obstacle courses at high speeds without crashing. The new approach combines simulations with real-world experiments, allowing drones to adapt to challenging aerodynamics and find the fastest routes.

Rising seas force dune and beach movement

Researchers measure increased vertical translation of dune toe along Holland coast, finding it outpaces sea level rise. The study's findings suggest other locations may experience similar changes due to global warming, highlighting the need for climate change adaptation measures.

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.