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Science News Archive 2021


Page 258 of 510

Hippos and anthrax

A team of researchers tracked the movements of hippos in Ruaha National Park, Tanzania, to better understand how anthrax outbreaks spread. They found that infected individuals roamed just as much as healthy hippos, highlighting the importance of wildlife movement in disease transmission.

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.

Two COVID-19 vaccines show safety, strong immunity in infant model

Researchers have developed two COVID-19 vaccines that elicited durable neutralizing antibody responses to SARS-CoV-2 in pre-clinical research. The Moderna mRNA vaccine and a protein-based vaccine candidate showed strong immunity in infant rhesus macaques, with no adverse effects.

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.

Chatbots for dementia patients and caregivers need more work

A systematic review of 501 chatbot apps found that none performed well on all testing criteria, with linguistic biases and usability challenges. The apps' limited program content made it hard to have extended or varied conversations between users and chatbots.

Apple iPhone 17 Pro

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

Rarest bee genus in North America is not so rare after all

A Canadian researcher has reclassified a rare bee thought to be one of the rarest in the world, discovering it is an unusual specimen of a widespread species. The discovery was made using DNA barcoding and morphological analysis, confirming that the bee is part of the California digger-cuckoo bee genus.

Investigating carbonate mineral chemical variations to improve oil recovery

Researcher Dr. Igor Ivanishin is investigating the impact of varying calcium contents on dolomite and calcite mineral stability, which can lead to improved well stimulation operations. His findings suggest that injected acids may unevenly dissolve rock in carbonate reservoirs, leaving some areas untouched.

Teens experienced helplessness when exposed to secondhand racism

A qualitative study found that adolescents feel helpless when exposed to secondhand racism online, with many describing it as a constant force. However, participating in activism is seen as a way to cope with vicarious racism, and may even mitigate negative emotions.

Meta Quest 3 512GB

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

Enormous flock of declining shorebird discovered in South Carolina

A massive flock of over 20,000 whimbrel has been discovered on Deveaux Bank in South Carolina, marking the world's largest known night roost for the declining shorebird species. The discovery provides critical hope for protecting this rare bird and highlights the importance of coastal habitat conservation.

The long view

Researchers at UCSB's LTER sites investigate the impact of climate change on diverse ecosystems, including kelp forests and coral reefs. Their findings highlight the importance of long-term research in understanding complex relationships between environmental drivers and ecosystem responses.

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 evolution of good taste

The study found that animals have evolved to prefer tastes that correspond with their elemental needs, helping them prioritize nutrient-rich foods. Convergent evolution was observed across mammalian, fish, and insect groups, highlighting the importance of taste in foraging and nutrient cycling.

Scientists discover how oxygen loss saps a lithium-ion battery's voltage

Researchers have measured the super-slow process of oxygen loss in lithium-ion batteries, revealing how it changes the electrode's structure and chemistry over time. This new understanding could lead to the development of new ways to engineer electrodes and prevent oxygen loss-related degradation.

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.

Many prolonged sick leaves for COVID-19

A University of Gothenburg study found that nearly 12,000 people in Sweden received sickness benefit for COVID-19 during the first wave, with a median sick leave duration of 35 days. For 9% of participants, sick leave was still ongoing after 4 months, and those affected by long-term COVID-19 made up 13.3% of recipients.

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.

Anaerobic methane oxidation by microbial communities

Researchers discovered microbial communities with the potential to consume methane, a greenhouse gas, at high rates in carbonate rocks from seven geologically diverse deep-sea methane seeps. The study found that these microorganisms can consume methane at rates up to 5,500 nanomoles per cubic centimeter per day.

Researchers create switchable mirrors from liquid metal

Scientists developed a method to dynamically switch liquid metal surfaces between reflective and scattering states using electricity. This technology could be used to create electrically controllable mirrors or illumination devices, enabling new applications in art and advanced devices.

Sources of lead in the western Arctic Ocean

A study reveals that 60% of lead in Canadian Arctic seawater comes from human sources, particularly historic lead emissions from Europe and Russia. The findings suggest that permafrost melting and coastal erosion will continue to remobilize these contaminants, making lead isotopes a sensitive tracer for pollutants in Arctic seawater.

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.

Study finds dosing strategy may affect immunotherapy outcomes

A study published in the Journal for ImmunoTherapy of Cancer found that immunotherapy outcomes differ based on dosing strategy and patient weight. Overweight patients receiving weight-based dosing lived an average of over 20 months, compared to less than 10 months for lighter patients.

USC study reveals potential new treatment target for Alzheimer's disease

Researchers at Keck School of Medicine of USC identified APOE4 as associated with the activation of an inflammatory protein that causes a breakdown in the blood-brain barrier, leading to cognitive decline and memory problems. The study suggests a potential treatment targeting this pathway could slow down or prevent cognitive decline in...

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.

Epigenetic inheritance of methylation changes in fish

A species of fish, Poecilia mexicana, developed a unique pattern of DNA methylation in response to exposure to toxic hydrogen sulfide. This epigenetic signature was found to be inherited by subsequent generations, even when reared in the absence of high hydrogen sulfide concentrations.

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.

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.

Research reveals why people pick certain campsites

A University of Montana study analyzed nearly 23,000 reservations at Watchman Campground in Zion National Park to identify the key drivers of demand. The researchers found that price and electricity were the largest influencers, followed by proximity to the river and ease of access.

Regenerating damaged eyes with mussel protein and amniotic membrane

Researchers at Pohang University of Science & Technology developed a new method for regenerating damaged conjunctiva using mussel adhesive protein, achieving stable tissue adhesion and biodegradation. The technique replaces traditional sutures in ocular surface reconstruction.

Clinical trial shows cell therapy improves clinical outcomes in heart failure

A clinical trial conducted at the University of Louisville showed that cell therapy using cells derived from a patient's own bone marrow and heart improved quality of life and reduced major adverse cardiac events. The treatment resulted in a significant reduction in hospitalizations and improved outcomes for patients with heart failure.

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.

Toward the first drug to treat a rare, lethal liver cancer

Scientists at Rockefeller University have identified a new class of therapeutics that destroy fibrolamellar tumor cells growing in mice. The team tested over 5,000 compounds to find these effective treatments, which could potentially transform the landscape of precision medicine by tailoring treatment options for individual patients

Stomach microbe illuminates peopling of Siberia and the Americas

A study on the gastric bacterium Helicobacter pylori reveals that humans persisted in Siberia during the last ice age and recolonized northern regions. The findings also suggest a single migration of ancient Eurasians into the Americas via the Bering land bridge approximately 12,000 years ago.

Gaps to fill: Income, education may impact inequalities in seeking dental care

A new study reveals regional disparities in dental care utilization in Japan, particularly among lower-income and less educated populations. The research found that these groups are more likely to neglect preventive treatments like calculus removal, leading to more severe tooth problems and increased healthcare costs.

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.

'Ice' flavoured e-cig use may be linked to nicotine dependence among the young

Research suggests that 'ice' flavoured e-cigarettes may be positively associated with conventional smoking and nicotine dependence among young adults. The study found that vapers of ice flavours were more likely to report smoking regular cigarettes, symptoms of vaping dependence, and using disposable non-cartridge devices.