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Science News Archive 2021


Page 321 of 510

Depression part of daily life for many Black Canadians

A study by the University of Ottawa found nearly two-thirds of Black individuals in Canada suffer from severe depressive symptoms. Women are disproportionately affected, with those who experience racial discrimination also showing higher rates.

Apple iPhone 17 Pro

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

A touch from a conversing robot is linked to positive emotional state

A study published in PLOS ONE found that participants who were touched by a humanoid robot during conversation reported a better emotional state. Those who received non-functional touch from the robot were more likely to comply with requests and exhibit positive behavioral responses, suggesting potential for robots to boost motivation.

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.

How mitochondria make the cut

Researchers investigated mitochondrial fission and discovered two types of division: midzone and peripheral. Midzone divisions have textbook machinery, while peripheral divisions are associated with stress and dysfunction. The study sheds light on regulation mechanisms and potential therapeutic targets for human diseases.

Distinguished diabetes researcher named 2021 Hamm prize laureate

Andrew T. Hattersley, a renowned diabetes researcher, has been awarded the 2021 Harold Hamm International Prize for Biomedical Research in Diabetes. The prize recognizes his lifelong contributions to the field of diabetes research and his singular advances that promote curative potential.

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.

What is driving reductions in residential greenhouse gas emissions in the US?

A Yale School of Environment study found that efficiencies in new home construction, energy consumption, and household appliances have contributed to lower emissions, but other factors may cancel out progress. The researchers suggest shifting from single-family housing to multi-family housing could reduce energy demand by up to 47%.

Exploring the possibilities of hyaluronic acid

Research has expanded hyaluronic acid's uses beyond cosmetics, exploring its potential in wound healing, nerve and muscle pain treatments, and cancer therapy. The ingredient is being combined with other proven ingredients to create optimized products with tangible results.

Scientists find a new anti-hepatic fibrosis drug target

Researchers from Skoltech, Italy, discovered a new axis for preventing liver fibrosis by targeting the GILZ protein. The study used mice models and verified findings with human clinical data, suggesting that controlling the signaling pathway involving GILZ could lead to treating inflammatory liver diseases.

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.

ASN Foundation announces recipients of National Scientific Achievement Awards

The American Society for Nutrition (ASN) has announced the recipients of its scientific achievement awards, recognizing top researchers, clinicians, and educators for their contributions to advancing nutrition research, education, and practice. The awards will be presented virtually during NUTRITION 2021 LIVE ONLINE.

The oldest human burial in Africa

Researchers have uncovered the oldest known human burial in Africa, dating back to 78,000 years ago. The discovery, made at Panga ya Saidi cave site in Kenya, reveals evidence of an intentional burial and suggests that Homo sapiens practiced mortuary rites similar to those of Neanderthals.

Can Twitter help improve dental education?

Studies found Twitter's real-time Q&A sessions and semi-anonymous interactions can benefit students' engagement and confidence. However, barriers to Twitter's use in dental education include privacy concerns and professionalism issues.

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.

340B hospitals offer more assistance removing barriers to medication access

According to a new study, hospitals participating in the 340B Drug Pricing Program provide more medication access services than comparably sized non-340B hospitals. The study found that 340B hospitals offered an average of 6.2 services, including prior authorization assistance and free or discounted outpatient medications.

Revealing the impact of 70 years of pesticide use on European soils

A study analyzing 340 European soil samples reveals high levels of pesticide residues in conventional agriculture, while organic farming practices show lower contamination. The research emphasizes the need for regulations and reference points to protect soil biodiversity and quality.

Secondhand smoke linked to higher odds of heart failure

A study by the American College of Cardiology found that nonsmokers exposed to secondhand smoke have a 35% increased risk of developing heart failure. The association was strongest in men and among those with previous heart conditions, highlighting the need for education and stringent smoke-free policies.

Worth 1000 words: How the world saw Australia's black summer

International media focused on wildlife, habitat destruction, and climate change, while Australian outlets prioritized human impact, firefighters, and politicians. This disparity in coverage highlights the distinct visual news values of domestic versus international media.

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.

Prediabetes may not be as benign as once thought

A study by the American College of Cardiology found that people with prediabetes are at a significantly higher risk of heart attacks and strokes compared to those with normal blood sugar levels. The researchers suggest that preventing prediabetes from the start may be the best approach, rather than just focusing on preventing diabetes.

FAU gets CDC grant to test PPE efficacy and workplace virus transmission

Researchers at Florida Atlantic University will assess safety measures against airborne transmission of viral infections. They will evaluate various protective measures, including facemasks and air filters, to develop experimentally verified computational strategies for mitigating airborne transmission.

Pandemic poses health risk to moms of preschoolers

A study published in Women's Health found that the pandemic significantly increased stress levels among mothers with preschoolers, leading to reduced sleep, physical activity, and a higher risk for obesity and poor health. The researchers recommend providing reliable childcare options and support systems to help mothers balance work an...

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.

Reduced kidney function linked to increased risk of dementia

Researchers found that people with reduced kidney function have an increased risk of developing dementia, with those with moderate chronic kidney disease having a 71% higher risk. The study highlights the importance of identifying and treating cases of kidney disease to reduce the risk of dementia.

Large bumblebees start work earlier

Researchers found that larger, more experienced bumblebees begin foraging at dawn despite poor visibility. This suggests that knowledge of food locations helps them navigate safely, and they can capitalize on the benefits of extra foraging time during early morning.

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.

Personalized sweat sensor reliably monitors blood glucose without finger pricks

Researchers have developed a personalized sweat sensor that accurately estimates blood glucose levels without the need for finger pricks. The device uses a polyvinyl alcohol hydrogel and electrochemical sensors to measure glucose in sweat, providing an accurate estimate of blood sugar levels with an accuracy rate of over 95%.

Researchers create leather-like material from silk proteins

Tufts University researchers develop a silk-based leather material with similar texture and flexibility to real leather, using sustainable sources and environmentally friendly chemical processes. The material can be printed into various patterns and textures and is biodegradable.

Release of drugs from a supramolecular cage

Chemists create supramolecular cage using Pd6(TPT)4 cages that can transport and release pharmaceutically active molecules like ibuprofen and progesterone. The system uses ultrasonification to break the bonds, releasing the drugs at the desired location.

WHO 'needs to act' on suicides caused by pesticides

A recent study has identified discrepancies in World Health Organization (WHO) classifications of pesticide hazards, leading to the continued use of potentially lethal pesticides in developing countries. The researchers propose eliminating all pesticides with fatality rates above five per cent to reduce suicides.

Meta Quest 3 512GB

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

Ancient DNA reveals origin of first Bronze Age civilizations in Europe

The study found that ancient civilizations in Greece were genetically homogenous, suggesting critical innovations like urban centres and metal use came from local Neolithic groups. Migration waves from the Pontic-Caspian steppe also shaped present-day Greece, supporting theories on Indo-European languages.

Meet the freaky fanged frog from the Philippines

Researchers at the University of Kansas have described a new species of fanged frog found in the Philippines, which was previously thought to be the same as another species on a neighboring island. The Mindoro Fanged Frog has distinct genetic differences and unique mating calls, setting it apart from its cousin.

Large study links dementia to poor kidney function

A large observational study by Karolinska Institutet researchers found a clear link between poor kidney function and increased risk of dementia. The study of over 325,000 individuals suggested that an eGFR score of 30-59ml/min was associated with a 71% increased risk of dementia.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Which medications are most toxic to the liver?

A recent study analyzing 156,570 hospitalized patients found that anti-infective agents, cancer medications, and nonsteroidal anti-inflammatory drugs were the most toxic to the liver. Voriconazole, an antifungal medication, was associated with the highest incidence of drug-induced liver injury.

Africa's oldest human burial site uncovered

A team of researchers from CNRS has uncovered the earliest human burial site in Africa, dated to approximately 78,000 years ago. The discovery at Panga ya Saidi in Kenya reveals a complex funerary treatment involving a shroud and potential ritual participation from the child's community.

Biologists discover a trigger for cell extrusion

MIT biologists discovered that cells are squeezed out of tissue when they can't replicate their DNA during cell division. This process, called extrusion, may serve as a way to eliminate cancerous or precancerous cells.

Dark matter detection

Scientists are certain that dark matter exists, but have no direct evidence. Researchers at the University of Delaware propose using tabletop sensors to detect ultralight dark matter particles. They plan to use optomechanical accelerometers to measure changes in acceleration between materials.

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.

CMU lab leads development of pasta that morphs into shape when cooked

Researchers at Carnegie Mellon University have created flat-packed pasta that forms into familiar shapes when cooked, offering a sustainable alternative to traditional pasta. The pasta's unique grooves control its shape, allowing for reduced packaging, storage, and transportation needs.

Dexamethasone treatment safe in surgery

A large clinical trial has definitively shown that dexamethasone, a steroid commonly used during anaesthesia before surgery, does not increase the risk of surgical wound infections. The study enrolled over 8,700 patients and found no significant difference in wound infection rates between those receiving dexamethasone and placebo.

Elegant constrictions in a cellular kill switch

Researchers have revealed the 3D atomic structure of the human PANX1 protein, a channel pore that plays a crucial role in pyroptosis, a form of cell death triggered by an immune response. The study provides new insights into the mechanism controlling pyroptosis and opens up potential avenues for developing targeted therapies.

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.

Johns Hopkins scientists model Saturn's interior

Researchers simulate conditions necessary for Saturn's unique magnetic field, indicating higher temperatures at the equatorial region and lower temperatures at high latitudes. The findings advance the effort to map Saturn's hidden regions and provide insights into the planet's formation and evolution.

New ant species named in recognition of gender diversity

A new ant species, Strumigenys ayersthey, has been discovered in Ecuador's tropical forests, featuring a trap-jaw morphology and a scientific name that celebrates gender diversity. The species' name, inspired by artist Jeremy Ayers, uses the non-binary suffix -they to recognize non-conventional gender assignments.

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.

New mutation raises risk for AFib, heart failure for people of color

A new genetic mutation found in African Americans significantly increases risk of atrial fibrillation and heart failure, prompting researchers to recommend genetic testing for this population. The study also identifies a potential link between a newly discovered gene and early-onset AFib.