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Science News Archive 2021


Page 189 of 510

Seeing better by looking away

Researchers at University of Bonn found that fixing objects slightly away from the center of cone density improves overall vision. The observed image shift is due to the varying resolution across the human retina, with sharper areas in the fovea and less sharp areas in the periphery.

New study points to toxic potential of hydroxychloroquine in mammalian cells

A new study published in DNA Repair shows that hydroxychloroquine exhibits DNA-damaging and mutagenic effects at a clinically achievable dose. The findings suggest the possibility of additional side effects, particularly in patient populations, and emphasize the need for careful risk assessment and informed consent.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Rethinking remdesivir

Researchers at University of California San Diego School of Medicine modified remdesivir to create an oral version that can be taken earlier in COVID-19 diagnoses. The revised drug proved effective and safe in cell and animal studies.

Exercise improves health through changes on DNA

Scientists at the University of Copenhagen have discovered that exercise can alter the structure of our DNA, specifically the enhancers that regulate gene expression. This epigenetic rewiring may be responsible for the beneficial effects of physical activity on human health.

Is right-wing authoritarianism a cognitive conservatism?

A new study published in the Social Bulletin of Psychology found that right-wing authoritarianism is more closely tied to how people acquire positive attitudes than changing them. The researchers suggest that individuals with RWA tend to be more sensitive to negative information, leading them to stick to positive information and avoid ...

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.

Gene sequencing tools pinpoint origins of Bundibugyo virus disease outbreak

A new study published in Cell Reports Medicine reveals the origins of a 2012 Bundibugyo virus disease outbreak in the Democratic Republic of Congo. The analysis, conducted by an international team, used high-throughput sequencing to identify multiple virus 'spillover' events that contributed to the outbreak. This research highlights th...

International project provides definitive data on how key cancer drugs work

Researchers analyzed patient specimens and clinical trial data from thousands of patients to assess the importance of immune cell molecules called Fc gamma receptors (FCGRs) in the therapeutic efficacy of two antibody drugs. High levels of FCGR2B on tumor cells were found to prevent rituximab efficacy, while obinutuzumab was not impact...

Pandemic may have increased older adults’ fall risk

The COVID-19 pandemic has likely led to an increase in falls among older adults due to decreased physical activity, worsened physical conditioning, and heightened fear of falling. This is a pressing concern as falls can result in significant injuries, particularly among this age group.

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.

How do leaders and influencers emerge?

A computer simulation modelled by Associate Professor David Goldbaum suggests a leader emerges through a dynamic self-reinforcing social process, even with identical attributes among group members. The study finds that building up influence and gaining popularity is key to becoming a leader.

Apple iPhone 17 Pro

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

Young adults show serious complications from Type 2 diabetes

A recent study published in the New England Journal of Medicine found that within 15 years of a Type 2 diabetes diagnosis, 60% of participants had at least one diabetes-related complication. Lifestyle modification and approved medications are not enough to manage the disease, emphasizing the need for expanded treatment options.

New model tracks carbon in agroecosystems

A new model integrates advanced models and observational data to track carbon cycles in agroecosystems, validating its performance and demonstrating its potential for estimating different carbon components. This solution has the potential to advance precision agriculture and inform sustainable farming practices.

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.

Large catheters, small veins, increase blood clot risk for cancer patients

A world-first study found that cancer patients receiving chemotherapy intravenously have more than double the risk of developing a blood clot or thrombosis if the vein is too small and the catheter occupies more than 45% of the vein. Researchers identified specific limits on catheter-to-vein ratios to reduce risks for cancer patients.

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.

Plastic creates 'evolutionary trap' for young sea turtles

A new study found that plastic pollution is ingested by juvenile sea turtles, leading them to accumulate in highly polluted areas like the Great Pacific Garbage Patch. The research team examined 121 sea turtles from five species and found that 86% of loggerheads and 83% of greens contained plastic.

Suicide-risk warning on anti-seizure medications lacks evidence

Researchers found no evidence of increased suicide risk among patients taking recently developed antiseizure medications. The study suggests that the FDA's blanket warning on anti-seizure medications may not be justified, highlighting concerns about its impact on patient treatment and trial results.

Study shows common insecticide is harmful in any amount

A recent UC Riverside study reveals that neonicotinoids, commonly used in commercial plant nurseries, are deadly to bees regardless of watering levels. The research found a 90% decrease in bee reproduction with both high and low irrigation levels, highlighting the need for alternative management practices to reduce harm to pollinators.

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.

Nanomaterials to decontaminate water

Researchers at INRS and Université de Montréal are developing new electrodes based on nanostructured materials to degrade chemical compounds, including persistent organic pollutants (POPs) like PFAS. The project aims to create innovative solutions to decontaminate waters containing harmful chemicals.

More to pictures than meets the eye: New study

A new study by UBC researchers found that people perceived as being less real and having 'less mind' when appearing within a photo. This discovery has implications for digital communication, particularly in online trials, healthcare, and education, where the perception of a person's mind can influence moral judgement.

Thawing permafrost releases greenhouse gas from depth

A new study suggests that thawing permafrost in Siberia may release large amounts of methane gas from limestone formations, posing a significant threat to global warming. Elevated methane concentrations were detected in two areas with limestone bedrock, indicating that fracture systems in these formations became permeable upon warming.

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.

Ferrucci earns GSA’s 2021 Donald P. Kent Award

Luigi Ferrucci, MD, PhD, FGSA, has been awarded the 2021 Donald P. Kent Award by the Gerontological Society of America (GSA) for his outstanding professional leadership in gerontology through teaching, service, and public interpretation.

Siddha Pimputkar recognized for early-career success in crystal growth

Siddha Pimputkar, an assistant professor at Lehigh University, has received the American Association for Crystal Growth (AACG) Young Scientist Award for his outstanding contributions to crystal growth. His research focuses on synthesizing bulk and thin-film single-crystal nitrogen-containing materials.

Drug-resistant germ packs punch to US travelers

Researchers found that over 60% of US residents infected with antibiotic-resistant salmonella Kentucky while abroad were resistant to fluoroquinolones. The bacteria is more likely to cause disease and evade antibiotics when acquired in Europe, Asia, and parts of Africa.

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.

Text reminders boost vaccine appointments

Researchers found that text messages with ownership language increased appointment rates by 84.33% and accelerated vaccination schedules at UCLA Health. The study involved two randomized controlled trials with over 87,000 participants and demonstrated the effectiveness of text reminders in overcoming barriers to vaccine scheduling.

A long day for microbes, and the rise of oxygen on Earth

Researchers found that the oxygen produced by photosynthesis is limited by the time available during shorter days, as late-rising cyanobacteria need a few hours to photosynthesize and produce oxygen. This discovery suggests that changes in day length may have impacted global oxygen levels over Earth's history.

Generous with individuals and selfish to the masses

A recent study found that people willingly share monetary gains with others and dislike inequality, yet behave selfishly in large group decisions. In the Big Robber Game, over half of participants took the maximum amount from their group, while displaying prosocial behavior in small, bilateral games.

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.

Cell-to-cell contacts control liver regeneration

Researchers found a regulatory cell type, mesenchymal cells, control liver regeneration through cell-to-cell contacts. The study suggests that the wrong number of contacts between populations can lead to cancer or chronic liver diseases.

Neanderthals indeed painted Andalusia’s Cueva de Ardales

A team of scientists found that Neanderthals intentionally applied red ochre pigment to the cave's flowstone formation, dating back 65,000 years. The analysis revealed variations in pigment composition corresponding to different dates of application, indicating a tradition passed down through generations.

Measuring happiness for reconnecting residents with forests

A Japanese research team found that residents who engage in activities like camping and hiking experience increased happiness, while ownership has no effect. The study suggests better policies for enhancing forest relationships and measuring happiness based on the types of forest happiness.

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.

Finding the cause of a fatal problem in rocket engine combustors

Researchers found significant periodic flow velocity fluctuations in fuel injector ignite combustion oscillations, leading to high mechanical stress on the combustion chamber. The findings provide a reasonable answer for why these oscillations occur and have significant implications for preventing fatal damage in critical engines.

Lifestyle adjustments can boost vascular health in seniors with obesity

A recent study published in Circulation found that eliminating 200 calories and exercising four days a week significantly improved aortic stiffness in older adults with obesity. The results suggest that moderate caloric reduction and aerobic activity are more effective than restrictive dieting for improving vascular health.

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.

Bird and mammal diversity is declining with biological invasions

Research reveals that biological invasions are threatening the evolutionary history and ecological strategies of birds and mammals. The study found that 11% of their phylogenetic diversity is at risk, with a greater impact on bird species due to their vulnerability to invasive species.

New record-breaking thermoelectric material

Seoul National University researchers have created a new record-breaking thermoelectric material using tin and selenium elements, overcoming previous limitations with high performance and toxicity concerns. The material achieves a thermoelectric figure of merit greater than 3.1 and power generation efficiency exceeding 20% in bulk form.

New solid-state thermal diode developed with better rectification performance

Researchers from Hefei Institutes of Physical Science, Chinese Academy of Sciences, have developed a novel thermal diode with improved rectification performance. The new device exhibits excellent thermal rectification performance, with a maximum coefficient of 1.51, and requires less temperature bias than other reported thermal diodes.

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.