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Science News Archive February 2023


Page 12 of 36

Unknown class of water-rich asteroids identified

A team from Heidelberg University discovered a new class of asteroids rich in water, similar to dwarf planet Ceres. The small bodies are thought to have formed in a cold region at the edge of the Solar System before being impacted by gravitational disruptions.

Apple iPhone 17 Pro

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

Quarks and gluons: The JADE experiment at DESY

The JADE experiment at DESY discovered the gluon, a particle that binds quarks together to form protons and neutrons. The discovery confirmed the theory of quantum chromodynamics (QCD) and was recognized with the 2004 Nobel Prize for Physics.

The switch made from a single molecule

Researchers at University of Tokyo's Institute for Solid State Physics have demonstrated a switch made from a single fullerene molecule that can function as multiple high-speed switches simultaneously. This technology could lead to unprecedented levels of resolution in microscopic imaging devices.

Spinal cord stimulation instantly improves arm mobility after stroke

Researchers from University of Pittsburgh and Carnegie Mellon University developed a neurotechnology that stimulates spinal cord to improve arm and hand mobility in stroke patients. The therapy enables tasks such as grasping objects and lifting arms above the head, with some improvements lasting even after the stimulation is switched off.

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.

Genomic study reveals signs of TB adaptation in ancient Andeans

A new genomic study found signs of TB adaptation in ancient Andean populations, thousands of years before European contact. The study suggests that Indigenous people in present-day Ecuador developed an immune response to tuberculosis around 3,000 years ago, when agriculture began proliferating in the region.

Building a computer with a single atom

A new study by Tulane University demonstrates that even a single atom can act as a reservoir for computing, processing information optically. The researchers proposed a non-linear single-atom computer where input and output are encoded in light, enabling flexible computation with any desired outcome.

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.

Human contact makes for happier and healthier dairy calves

A new study found that human contact, including neck scratches, can reduce stress and improve well-being in weaning dairy calves. The research showed that calves housed alone benefited most from the extra human interaction, leading to decreased sucking behaviors and increased rest after meals.

Neuroscience tool’s structure may lead to next gen versions

Researchers have unveiled the structure of DREADDs, a neural tool that enables precise control over neurons. The new findings will allow for further refinement and optimization of the tool, paving the way for innovative treatments for brain disorders such as schizophrenia, substance abuse, and Alzheimer's.

Mid-twentieth-century physics in the home of Galileo

Fermi statistics and electronic coincidence circuits were developed at the Institute of Physics in Florence, laying the groundwork for modern electronics. The institute continued to thrive after WWII, establishing a strong theoretical physics program that remains active today.

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.

Using light to switch drugs on and off

Researchers at the Paul Scherrer Institute have developed a film that demonstrates the potential of photopharmacology in treating diseases such as cancer. The new approach uses light to switch on and off a molecular photoswitch, allowing for targeted and reversible drug action.

Studying ship tracks to inform climate intervention decision-makers

Researchers studied ship tracks, which reflect sunlight and are formed by moving ships, to understand their benefits and risks of slowing climate change. They developed a mathematical model of ship tracks and found them to persist for more than 24 hours, longer than previously documented.

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.

Finely-tuned quantum dots enhance nonlinear optics

Researchers have discovered a way to fine-tune quantum dots to enhance their nonlinear optical properties, allowing for tighter control over light emission frequency and brightness. This breakthrough could lead to significant advances in optoelectronic devices such as LEDs and light-based computer circuits.

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

Global proportion of disordered eating in children and adolescents

A systematic review of 32 studies involving 63,000 participants from 16 countries found that disordered eating affects approximately 22% of children and adolescents globally. The study highlights the need for public health strategies to prevent eating disorders, particularly among girls and those with increasing body mass index.

Geckos know their own odor

Researchers at the University of Bern discovered that geckos can detect and distinguish their own skin chemicals from those of other geckos, revealing a new level of social complexity in these animals. This finding suggests that geckos are more intelligent than previously thought, using pheromones for communication and self-recognition.

Experts have discovered how zebra stripes work

Researchers found that zebra fur's thinly striped and sharply outlined pattern deters horseflies. The team theorized that small dark patches are less appealing to flies compared to large monochrome patches.

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.

Doxycycline does not prevent STIs among cisgender women

Researchers found that doxycycline postexposure prophylaxis did not prevent chlamydia or gonorrhea among cisgender women in a clinical trial. The lack of efficacy was attributed to differences in anatomy and antibiotic resistance.

Uncovering the traits of Japan’s dual ancestry

A new statistical analysis tool has uncovered the distribution and intermixing of Jomon hunter-gatherers and East Asian immigrant farmers in Japan. The study found that regions with higher Jomon ancestry are more prone to obesity, while those with higher East Asian ancestry are more susceptible to exacerbated asthma.

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.

Development of a self-resonant smart energy harvester

Researchers developed an autonomous resonance-tuning mechanism for energy harvesting from vibrations, achieving efficient power supply for IoT sensors. The device can adjust its frequency to match the surroundings' vibration, enabling continuous electricity generation over a broad bandwidth.

‘Staggering’ race, ethnicity disparities in new report on homelessness

A new Cornell University-led study finds 'staggering' disparities in national sheltered homelessness rates across race and ethnicity, with Black and Indigenous Americans disproportionately affected. The report highlights a need for more comprehensive data to inform policies targeting those most at risk of homelessness.

Atoms slow down more within colder blackbody radiation

Atoms encounter high frictional forces when moving towards blackbody radiation at lower temperatures, a phenomenon known as blackbody friction force (BBFF). This effect is particularly strong at lower temperatures and could impact atomic clocks, interferometers, and other high-precision experiments.

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.

Can the lingering effects of a mild case of COVID-19 change your brain?

A study found that people with long COVID who experience anxiety and depression months after a mild case of COVID-19 may have brain changes that affect the function and structure of the brain. The study also revealed widespread functional changes in brain networks, suggesting potential problems with memory and thinking skills.

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.

Rising silicon-rich snow in the Earth's outer core

A team of scientists from Arizona State University predicts that silicon-rich crystals will rise in the Earth's outer core, forming 'snow' that can affect seismic velocity anomalies. The research, published in Nature, uses a new method to simulate high-pressure and high-temperature conditions expected for the core.

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.