Bluesky Facebook Reddit Email

Science News Archive 2021


Page 248 of 510

Landmark field trials show potential of gene-editing

Researchers have successfully used CRISPR-Cas9 gene editing technology to manipulate glucosinolate levels in broccoli, reducing their accumulation in the leaves and florets. This study highlights the potential of gene editing to improve crop health and adaptability in challenging environments.

Adjuvant-free avian influenza vaccines in the works

A research team at POSTECH has created a multivalent, adjuvant-free vaccine against various strains of avian influenza. The vaccine uses green vaccine technology to produce bacteria-like particles that elicit strong immune responses in mice and chickens.

The paths through which COVID-19 spread across Brazil

A Brazilian study found that three factors - super-spreader cities, highways, and ICU availability - contributed to the country's high COVID-19 death toll. The 'boomerang effect' of patients traveling to larger cities for treatment exacerbated the distribution of deaths.

New model simulates the tsunamis caused by iceberg calving

A new model has been developed to simulate the correlation between iceberg size and tsunami amplitude, providing insight into glacial rupture mechanisms. The study's results can refine sea-level rise predictions and provide detailed information about icebergs' mass loss.

Apple iPhone 17 Pro

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

Microscopy deep learning predicts viral infections

A machine-learning algorithm can recognize virus-infected cells based on fluorescence of the cell nucleus, reliably identifying viruses and predicting severe acute infections. The algorithm has been trained with a large set of microscopy images and demonstrates 95% accuracy in detecting virulent infections up to 24 hours in advance.

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.

Changes in farming practices could reduce greenhouse gas emissions by 70% by 2036

A new study published in PNAS predicts that changes in farming practices could reduce greenhouse gas emissions from grain production by up to 70% within the next 15 years. The study identifies a combination of technological innovations, including digital agriculture, crop genetics, and electrification, as key drivers of this reduction.

New method for molecular functionalization of surfaces

Researchers have developed a new approach to create stable and ordered single molecule layers on silicon surfaces through self-assembly. They use N-heterocyclic carbenes, which can form strong covalent bonds with silicon while maintaining mobility to arrange into regular molecular structures.

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.

Keeping a vigilant watch on SARS-CoV-2

The Vigilant platform combines reverse transcription-recombinase polymerase amplification (RT-RPA) with bacterial enzymes to detect SARS-CoV-2 gene sequences. This method produces comparably reliable results as PCR tests but is cheaper and easier to use, making it suitable for non-laboratory settings.

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.

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.

Crustal deformation on Venus

The study reveals features on Venus that suggest limited yet global crustal deformation driven by convection in the planet's interior. The findings support the hypothesis that planetary heat flux and a thinner lithosphere were present during Earth's Archean Eon.

COVID-19, air pollution, and vehicle electrification

A study found that vehicle electrification may produce similar air quality effects as during the COVID-19 pandemic, but with decreased magnitude. The model accounted for nonlinear relationships between emission rates and atmospheric chemistry, highlighting the need to mitigate off-road emissions.

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.

Air quality monitoring during volcanic eruption

Researchers deployed a network of low-cost sensors to measure sulfur dioxide and particulate matter concentrations in volcanic smog during the 2018 Kilauea eruption. The system enabled fine-scale measurements and monitoring of plume chemical evolution over time, providing valuable insights into extreme air quality events.

Emissions reduction in row crop agriculture

A green transition roadmap for emissions-reducing technologies could achieve net negative emissions through optimized fertilizer application, low-emission alternatives, and system redesign. This plan aims to generate environmental benefits while fulfilling societal functions in row crop agriculture.

Common perovskite superfluoresces at high temperatures

Researchers from North Carolina State University have discovered that a commonly studied perovskite can superfluoresce at practical temperatures and timescales, indicating this characteristic may be widespread in the class of materials. This phenomenon could prove useful for quantum computing applications.

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.

'Suffocating' cancer: A new headway in melanoma immunotherapy

A recent study published in the Oncogene Journal revealed that targeting HIF-1α significantly inhibited melanoma growth and amplified immune cell infiltration into tumour microenvironment. The discovery provides a valuable new target for making resistant melanomas more vulnerable to available anti-cancer treatments.

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.

Comparing agricultural and microbial biomass yields

Researchers report that solar energy can produce microbial protein-rich biomass with significantly higher yields than traditional crops. This photovoltaic-driven process uses land and sunlight efficiently, offering a resource-efficient food source for a growing global population.

Meta Quest 3 512GB

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

Implantable brain device relieves pain in early study

A computerized brain implant effectively relieves short-term and chronic pain in rodents, detecting brain activity linked to pain and triggering therapeutic stimulation of the prefrontal cortex. The device reduces pain intensity and is less likely to cause addiction, offering a promising new strategy for pain therapy.

Resolving the red sky paradox

A study proposes three resolutions to explain the red sky paradox, where FGK dwarfs are not apparent in the sky despite being five times more common than Sun-like stars. Red dwarfs have a lower probability of emerging intelligent life, a shorter available time window for complex life evolution, and a lower occurrence of habitable worlds.

Oregon State leading $17M effort to study gravitational waves

Researchers aim to detect gravitational wave signals with frequencies 11 orders of magnitude below those detected by LIGO. The NANOGrav center will use radio pulsars and telescopes to search for a 'chorus' of signals from super-massive black hole mergers.

Butterflies cross the Sahara in longest-known insect migration

A species of butterfly found in Sub-Saharan Africa can migrate thousands of miles to Europe crossing the Saharan Desert in years with favorable weather conditions, increasing understanding of how insects could spread between continents due to climate change.

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.

A tapeworm drug against SARS-CoV-2?

Researchers from Charité and University of Bonn identify four substances that inhibit SARS-CoV-2 replication in host cells, including niclosamide, a tapeworm drug. These findings suggest potential new treatment against COVID-19.

Females supercharge sperm evolution in animals

Researchers from Stockholm University found that animal sperm evolve rapidly only when fertilization occurs inside females. Sperm size varies dramatically among species, but internal fertilization leads to supersized sperm.

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.

Study examines how breast implant surfaces affect immune response

Researchers found that textured-surface breast implants stimulate pro-inflammatory T cell responses, which may lead to chronic inflammation and cancer. Smooth-surface implants showed less immune cell activity, suggesting a potential link between rougher surfaces and breast implant-associated large cell lymphoma (BIA-ALCL).

Novel smart cement can be used to build more durable roads and cities

Northwestern University researchers have developed a smarter, more durable and highly functional cement by introducing nanoparticles into ordinary cement. The new material shows improved water transport properties, including pore structure and water penetration resistance, with reported relative decreases of 76% and 78%, respectively.

Fluke 87V Industrial Digital Multimeter

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

The same cell type can help or hinder kidney repair after acute injury

Researchers found that damaged proximal tubule cells can promote disease progression by showing activity in genes that support survival and programmed cell death. These cells may contribute to the transition from acute to chronic kidney disease, affecting 9.1% of the world's population.

New research finds link between walking speed and dual tasking after stroke

Training stroke survivors to walk at a faster speed can help improve the brain function that enables people to walk and perform another task simultaneously. Advanced brain imaging found changes in the brain consistent with adaptations necessary for controlling gait in complex environments, supporting the findings.

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.

Lead from leaded petrol persists in London air despite '90s ban

Researchers found that up to 40% of lead in airborne particles comes from legacy leaded petrol, highlighting the persistence of contaminants introduced by human activities. Long-term low-level exposure to lead can have detrimental health effects, and measures should be taken to reduce further lead emissions.

Capturing the huge impacts of tiny organisms

Researchers are developing a new technique to study microbes in conditions that mimic their native environment, facilitating the growth of difficult microbial species. This technology has potential applications in medicine, biotechnology, and bioremediation, including the controlled delivery of healthy gut bacteria into the body.

Future of perovskite solar cells shines a little brighter

Researchers at OIST Graduate University have developed a new method to synthesize crystalline powder necessary for perovskites, resulting in higher quality and stable solar cells. The newly created perovskite-based solar cells achieved conversion efficiencies of over 23% and lifespan of more than 2000 hours.