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Science News Archive 2021


Page 181 of 510

Biosensors: Transforming the diagnosis of infections in newborns

Researchers review advancements in biosensing technologies for neonatal sepsis diagnosis, highlighting the need for faster and more accurate methods. Biosensors offer a promising solution, detecting multiple parameters simultaneously with high sensitivity and accuracy.

Switched on IR-active organic pigments

Researchers developed a modular organic molecular system with customizable properties, creating a potent dye that absorbs light in the near-infrared range. The pigments' electronic switchability makes them suitable for studying electron transfer in photosynthesis and as efficient electron-transporting materials.

Brain structure in premature babies linked to emotional processing in preschool

New research published in eNeuro found that premature babies' brain connections at birth can predict their future emotional and social development. The study discovered a link between the strength of the uncinate fasciculus, a white matter tract involved in emotional regulation, and emotion moderation skills in preschoolers.

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.

Slam the door shut: Improving building energy by evaluating building airflow

Scientists from Incheon National University identified interzonal airflow across household entrance doors as a dominant factor in calculating heating loads. They found that strong stack effect and weather-driven airflow rates were larger than external infiltration rates, making conventional airtightness measures unreliable.

What to call seafood made from fish cells

A new Rutgers study suggests that food companies use the terms "cell-based" or "cell-cultured" when labeling seafood products made from fish cells. The study found that both terms meet FDA regulations and help consumers understand the production process, while also recognizing potential allergens.

A novel implement of CPML for second-order acoustic wave equations

Researchers develop a new unsplit complex frequency-shifted perfectly matched layer (UCF-PML) method for simulating second-order acoustic wave equations. The TS-CPML implementation outperforms conventional CPML in terms of absorbing efficiency, leading to more accurate seismic wavefield simulations.

Youth, the pandemic and a global mental health crisis

A new study found that depression and anxiety symptoms have doubled in children and adolescents globally during the pandemic. The study recommends prioritizing recovery planning now to mitigate sustained mental health effects.

Apple iPhone 17 Pro

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

Earthquake forecasts move a step closer to reality

Scientists aim to develop computer models that can forecast earthquake chances and impact, like weather forecasting. The project will also train students and researchers from diverse backgrounds to work on computational geoscience.

SARS-CoV-2 infection among maternal-infant pairs in Ontario, Canada

A recent study found SARS-CoV-2 infection among maternal-infant pairs to be extremely rare in early infancy. The findings suggest that while transmission is uncommon, continued monitoring and vaccination efforts are necessary to protect newborns from COVID-19 and its variants.

Study identifies molecule that stimulates muscle-building in humans

Researchers found that consuming dileucine enhances the metabolic processes driving muscle growth, resulting in a 42% increase in protein synthesis. In contrast, leucine alone showed no significant impact on protein breakdown, highlighting the molecule's potential as a signaling agent for muscle-building pathways.

Meta Quest 3 512GB

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

New animations breathe life into complex scientific concepts

The new animations create a visual representation of cell respiration, showcasing the breakdown of glucose and release of energy. The animations were built using cutting-edge scientific discovery and research, including models from X-ray crystallography and molecular dynamics simulation.

Green hydrogen: Why do certain catalysts improve in operation?

Researchers discovered that certain catalyst materials, such as erythrite, improve in performance over time due to restructuring. This process increases the surface area of the material, allowing for more reactions to occur, resulting in higher oxygen yields and doubled electrical current generation.

Why nanoparticles could prove a game changer for cancer immunotherapy

Researchers have identified promising avenues for targeted nanoparticles in cancer immunotherapy, specifically targeting the tumor microenvironment. By activating dendritic cells and macrophages, nanoparticles can relieve hypoxia and change the state of an immunosuppressive TME to immunosupportive.

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.

Climate change ‘double whammy’ could kill off fish species

Warming oceans are causing fish to struggle with both survival and adaptation, leading to potential extinction. The research found that warmer waters reduce the size of fish, making it harder for them to relocate to more suitable environments, and also limit their ability to evolve and cope with changing temperatures.

Exploring the limits of light–matter coupling at the nanoscale

Researchers have explored the limits of light-matter coupling at the nanoscale, discovering a fundamental physical limit to subwavelength confinement. The study reveals that as light is concentrated into smaller volumes, its interaction with matter changes in ways that cannot be predicted by classical theories.

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.

'Cool' kids in the cosmos may not be so unique

Researchers at Rice University found that cool stars have dynamic surface behaviors influencing their magnetic environments and planetary habitability. This study suggests that small stars share similar properties with the sun, enabling predictions for exoplanet 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.

Spotting — and hearing — heart attacks before they strike

Researchers developed a new imaging technique that uses light and sound to detect plaques in arteries, potentially preventing strokes and heart attacks. The technique uses nanoparticles that absorb light and emit sound waves, allowing doctors to visualize the plaques in a non-invasive way.

New in Ethics & Human Research, July-August 2021

The article considers the ethical issues surrounding enrolling children with neurodevelopmental conditions, such as autism spectrum disorder and fragile X syndrome, in clinical trials. Parents may face difficult decisions about whether to enroll their children due to concerns about potential loss of positive aspects of their condition.

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.

How Galápagos finches evade a parasitic fly

Researchers found medium tree finch nests with high parasite survival rates, while hybrid finches had lower rates. Nestling behaviour also predicted naris deformation due to vampire fly parasitism.

Inspired by barnacles, medical glue stops bleeding in seconds

Researchers at Mayo Clinic and MIT have developed a rapid-sealing paste that can stop bleeding from organs without clotting. The paste works like barnacles, exuding an oil matrix to clean the surface and repelling moisture, before applying a protein that cross-links with tissue molecules.

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.

Undersea rocks yield earthquake clues

A University of Delaware study of ocean rocks has informed earthquake science by understanding the properties of underwater faults and their impact on seismic activity. Researchers have found that seawater infiltration in these faults weakens the rock, allowing it to flow faster and potentially reducing the risk of large earthquakes.

Prisons and COVID-19

The study found COVID-19 incidence was significantly higher in Massachusetts prisons operating at a higher percentage of their capacity. In contrast, prisons with more single-cell housing had lower infection rates.

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.

Crowding in prisons increases inmates’ risk for COVID-19 infections

Researchers at Massachusetts General Hospital found that crowding in prisons significantly increases the risk of COVID-19 infections among inmates. The study suggests that policy changes are necessary to protect this vulnerable population and notes that even a small increase in crowding can pose a significant threat.

COVID-19 News from Annals of Internal Medicine

Rates of COVID-19 hospitalizations, ICU admissions, and in-hospital deaths peaked in December 2020 among adults aged 65+, males, and Hispanic or non-Hispanic Black persons. Effective therapeutics use increased while invasive interventions waned, suggesting clinical practice evolved based on increasing knowledge.

How wildfire restored a Yosemite watershed

Decades of fire suppression have eliminated valuable wildlife habitat, but allowing lightning fires to burn has restored a resilient ecosystem with increased plant and pollinator biodiversity. This approach also limits the severity of wildfires and increases water availability during droughts.

Fluke 87V Industrial Digital Multimeter

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

Urgent global need for low-cost ventilators

A UK team developed a portable ventilator to treat COVID-19 patients in developing countries. The Field Ventilator can be used beyond COVID-19 to treat various respiratory diseases and patients needing respiratory support.

What happens when bats are given three choices?

In a study published in Animal Behaviour, Claire Hemingway found that fruit-eating bats prefer two over one option, but are swayed by the third choice. This suggests that diet and environment play a significant role in shaping their decision-making processes.

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.

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.

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.

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.

Why middle-class residents want to stay put after floodwaters recede

A new study from Rice University finds that middle-class people who made plans to stay in their neighborhoods before flooding are less likely to relocate even if they suffered significant damage. Long-term planning and social pressure played a key role in residents' decisions to stay or leave flooded homes.