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Science News Archive November 2022


Page 31 of 39

Chemists developed cholesterol testing system

Scientists at Ural Federal University have developed a sensor device that determines cholesterol levels without using enzymes. The system uses copper chloride, making the process cheaper, easier, and faster than traditional methods.

Better over-the-phone health care using artificial intelligence

The University of Tsukuba researchers developed a machine-learning model to predict undertriage in phone-based triage systems. The model identified risk factors such as age, sex, and comorbid conditions, which can be used to update protocols and improve patient outcomes.

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.

Neuron function is altered by the widely used anesthetic propofol

Researchers found that propofol decreases intracellular transport of proteins in neurons, impacting vesicle movement and axonal delivery. This study contributes to understanding how propofol causes anesthesia and may lead to the development of better anesthetic drugs.

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.

Rice, Baylor to study how screen use affects young children

A team of researchers from Rice University, Baylor College of Medicine, and Northern Illinois University are developing an open source system called FLASH to objectively measure children's screen-viewing behaviors. The five-year grant includes funding for three long-term studies on the impacts of screen use on young children.

New in Ethics & Human Research, November-December 2022 issue

A new study explores the ethics of disclosing Alzheimer's disease biomarker information to cognitively unimpaired research participants, highlighting conflicting norms and nuanced policy recommendations. The authors suggest policies for disclosure in various research settings, emphasizing the need to prioritize participant well-being a...

Motivation is affected by oxidative stress, nutrition can help

A study found that higher levels of glutathione in the nucleus accumbens correlate with better performance in motivation tasks. Nutritional interventions targeting GSH levels may improve motivation by modifying behavior and facilitating effortful endurance.

Apple iPhone 17 Pro

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

‘Insects need our help in a warming world, now’

A recent study by 70 scientists highlights the devastating effects of climate change on insects, which play critical roles in ecosystems. Gradual warming and extreme events harm insects, affecting their physiology, behavior, and interactions with other species.

Charge dynamics of a noncentrosymmetric magnetic Weyl semimetal

A team led by Prof. Leonardo Degiorgi reveals the electronic environment of PrAlGe, which favors an unusually large anomalous Hall conductivity at low temperatures due to correlated Weyl states. They propose a suitable experimental approach to trace the relevant ingredients of the electronic structure.

Limiting antibiotics for cows may create a new dairy market

A new label indicating responsible antibiotic use (RAU) in dairy milk could entice conventional farmers to minimize antibiotics, with half of US adults willing to buy RAU-labeled milk. The price point would need to be competitive with conventional milk, but consumers are more willing to pay for the label.

Rethinking mountain water security

A new study reveals huge gaps in data on how communities use mountain water sources, complicating efforts to model future scenarios. The researchers emphasize the need for improved data and process understanding to guide effective climate change adaptation.

Want to fire up the dance floor? Play low-frequency bass

A study published in Current Biology found that undetectable very low frequency sound increases dancing at a live concert, with participants moving 12% more when the speakers were on. The researchers speculate that this is due to physical processes affecting the motor system and brain mechanisms involved.

Meta Quest 3 512GB

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

Silicon photonic MEMS take a step forward

Researchers have demonstrated a power-efficient component for demultiplexing operation using silicon photonic MEMS, enabling efficient wavelength demultiplexing for fiber-optic communications. The compact footprint of the add-drop filter allows fast operation compared to established MEMS products.

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.

Study finds automated texts decrease odds of rehospitalization

Researchers found that patients who received automated text messages from their primary care team after discharge had a significant decrease in hospital readmission (55%) and emergency care use (41%) compared to those who did not receive the texts. This study adds to evidence that connecting with patients through text messaging can hel...

Surgery is best to prevent amputations in certain people with poor leg circulation

Research at American Heart Association Scientific Sessions 2022 found that bypass surgery improves blood flow to legs and feet, reducing major amputations and repeat procedures by 65% and 27%, respectively. The study of 1,830 patients with chronic limb-threatening ischemia concluded that surgical bypass is a better option for those wit...

New one-stop guideline for cardiovascular health in Canada

A new comprehensive guideline, C-CHANGE, offers 83 actionable recommendations to prevent and treat cardiovascular disease in Canadian adults. The updated resource incorporates new or revised recommendations from 11 guideline groups, addressing key risk factors such as dietary habits, smoking, and physical activity.

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.

How a SARS-CoV-2 virus protein damages the heart

Researchers identified how SARS-CoV-2's Nsp6 protein damages heart cells, hijacking their metabolism to cause damage. A drug, 2-deoxy-D-glucose, reduced this damage by blocking sugar metabolism, offering a potential treatment for long-term COVID-19 complications.

Observation of a self-generated current to self-confine fusion plasmas

Researchers at Seoul National University and Princeton University have discovered a new type of self-generated plasma current in a tokamak, which could enable long-pulse fusion operations. The new current source was found to comprise up to 30% of the total plasma current and appears when turbulence is relatively low.

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.

PFAS levels lower in buildings with healthier furnishings

A new study by Harvard T.H. Chan School of Public Health found that buildings renovated with healthier furnishings had significantly lower levels of PFAS than those with conventional furnishings. The researchers analyzed dust in indoor spaces and found that organic fluorine levels were also lower in the healthier spaces.

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.

Early planetary migration can explain missing planets

A new model accounts for the interplay of forces acting on newborn planets, explaining two puzzling observations: the radius valley and peas in a pod. The research suggests that giant impacts, like the one that formed our moon, are probably a generic outcome of planet formation.

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.

New insights into the mechanisms causing diabetes

Researchers at Osaka University identified T-cadherin as a factor that feeds back a lack of insulin to pancreatic β cells, inducing their proliferation. This finding suggests a potential new treatment for diabetes by targeting T-cadherin.

Ultraprocessed foods linked to premature deaths

A new study found that ultraprocessed foods contributed to 57,000 premature deaths in Brazil in 2019. The study estimated the impact of reducing UPF intake and suggested that limiting consumption could prevent approximately 5,900 to 29,300 premature deaths annually.

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 research suggests political events impact sleep

A study by Beth Israel Deaconess Medical Center found that divisive political events negatively influence factors related to public mood, well-being, and alcohol consumption. Participants reported reduced sleep quality, increased stress, negative mood, and higher alcohol use in the days leading up to the election.

Earth’s oldest stromatolites and the search for life on Mars

Researchers used advanced analytical techniques to identify characteristics indicative of a biological origin in the 3.48-billion-year-old Dresser Formation stromatolites. The study provides unique insights for searching life on Mars, where similar geological processes may preserve biosignatures.

DNA barcoding reveals cancer cells’ ability to evade the immune system

Researchers used DNA barcoding to track breast cancer cells over time, finding that some cells can suppress killer T-cells and reduce MHC1 expression to evade the immune system. This study suggests epigenetic mechanisms may play a role in cancer cell adaptation and provides potential targets for therapies.

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.

Promising results from psilocybin trial for treatment-resistant depression

Researchers conducted the largest clinical trial to date of psilocybin, finding a statistically significant rapid reduction in symptoms of depression. The study suggests that COMP360 psilocybin with psychological support could be an effective treatment strategy for people with treatment-resistant depression.

Climate change to impact mountains on a global scale

A new study warns that climate change will negatively impact mountain landscapes and human activity, increasing risks of natural hazards like avalanches and river floods. Mountain communities are also affected, with traditional practices like transhumance and agriculture dying out due to changing weather patterns and water scarcity.

In ironic twist, CRISPR system used to befuddle bacteria

Researchers at North Carolina State University developed a CRISPR-based system that uses engineered bacteriophages to deliver genetic payloads to specific bacteria, even in complex environments. This technology enables precise single-letter changes to the genome without double-strand DNA breakage.

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.

ASU leads $25M project to develop Southwest urban integrated field laboratory

The ASU-led SW-IFL aims to understand complex relationships between extreme heat, atmospheric pollutants, and limited water supply on vulnerable urban subpopulations. The integrated field laboratory will combine high-resolution data, advanced computer modeling, and community engagement to create regionally specific predictive tools.

Beer hops compounds could help protect against Alzheimer’s disease

Researchers found that extracts from hop flowers can inhibit the clumping of amyloid beta proteins, associated with Alzheimer's disease. The Tettnang hop extract showed potent anti-aggregation and antioxidant properties, promoting the body's ability to clear out misfolded proteins.

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.