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Science News Archive 2021


Page 226 of 510

Diabetes care, glycemic control during pandemic in US

The COVID-19 pandemic had a substantial effect on diabetes care in the US, with a decrease in health services received by patients with type 2 diabetes. This decrease was particularly pronounced among low-income individuals, highlighting the need for targeted support and resources.

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.

Enzyme from fungi shows molecules which way to turn

Rice University scientists have isolated a biocatalyst that controls the chirality of compounds, enabling more accurate drug synthesis. The discovery could lead to improved pharmaceutical production by providing a new tool for controlling stereochemistry.

High risk of divorce after TBI? Not necessarily, study suggests

A recent study published in the Journal of Head Trauma Rehabilitation found that two-thirds of patients with traumatic brain injury (TBI) remain married to their spouse 10 years after the injury. The study analyzed data from 1,423 patients and found that marital stability was higher for those who were older, female, and had no problema...

Autistic children can benefit from attention training - new study

A new study published in Autism Research found that attention training in autistic children aged 8-14 led to notable improvements in math, reading, writing, and overall attention. The researchers developed a computer programme called CPAT, which showed significant results in both immediate and long-term assessments.

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.

Kepler telescope glimpses population of free-floating planets

The Kepler Space Telescope has discovered four new planets that are consistent with Earth-sized masses and may be free-floating in space. These findings suggest the existence of a population of free-floating planets, which could have been ejected from host stars by gravitational forces.

Sexual reproduction without mating

Scientists identify edible wild mushroom with complex reproductive structure, challenging traditional understanding of fungal reproduction. The study reveals a new type of reproduction that recombines genetic information without a mate, potentially increasing ecological fitness and adapting to previously unsuitable habitats.

Apple iPhone 17 Pro

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

More and more older people suffer a traumatic brain injury due to falls

A recent study of over 3,500 participants found that traumatic brain injuries are increasing in the over-65 age group, with falls as the most common cause. The study highlights the need for prevention measures, such as training programs for safe walking and redesigning homes to remove tripping hazards.

Lab analysis finds near-meat and meat not nutritionally equivalent

A Duke University research team used metabolomics to compare the nutritional content of plant-based meat alternatives and grass-fed beef, finding large differences despite comparable nutrition facts labels. The study highlights the need for consumers to understand that these products are not nutritionally interchangeable.

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.

Muscles retain positional memory from fetal life

Researchers at Kumamoto University discovered that muscles and satellite cells retain positional memory from fetal life, based on the expression pattern of the homeobox (Hox) gene cluster. This finding is expected to provide insights into the pathogenesis of muscle diseases and develop regenerative medicine.

Context in science reporting affects beliefs about, and support for, science

A new study led by a University at Buffalo researcher shows that the way news media talk about science focuses too much attention on individuals, leading to inaccurate perceptions of scientific accuracy and reliability. The study suggests that contextualizing failure stories within the scientific process can help ameliorate harm to sci...

Light pollution has complex effects on animal vision

Research from University of Exeter found that light pollution impacts moths' ability to see flower colours, while birds' vision is improved by artificial lighting. The study highlights the need for a nuanced approach to lighting, especially for nocturnal species like moths.

Missing bile ducts offer clues to mechanism of liver injury

Scientists have discovered a new mechanism by which the liver adapts to injury by decreasing bile synthesis and shunting it to the bloodstream. This adaptation may explain why some patients with liver injury develop symptoms later than others, and could lead to new treatments for these patients.

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.

New study uncovers how a series of sleep loss impacts mental and physical wellbeing

A new study published in Annals of Behavioral Medicine found that just three nights of sleep loss can cause significant deterioration in mental and physical health. After a day or two, symptoms peak, and the body becomes relatively adapted to repeated sleep loss, but this changes on the sixth night when physical symptoms reach their wo...

Software tool breathes life into post-COVID office airflow

The new indoor module for Eddy3D software helps designers and architects maximize fresh air flow and minimize stagnant areas. By simulating airflow and identifying virus diffusion patterns, the tool reduces the risk of airborne pathogens in post-COVID offices.

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.

Counting sheep and still awake? Mindfulness therapy may help bring on the zzz's

A study published in Psychological Medicine found that mindfulness-based therapy (MBTI) was more effective than a sleep hygiene program in reducing insomnia symptoms and improving sleep quality. MBTI participants took less time to fall asleep and spent less time awake during the night compared to those in the sleep hygiene program.

Freshwater methamphetamine pollution turns brown trout into addicts

A study by Pavel Horký and colleagues has discovered that low levels of methamphetamine in freshwater rivers can elicit addiction in wild brown trout. The fish exhibited withdrawal symptoms when switched to clean water, suggesting addiction was present. Methamphetamine contamination in waterways poses a significant threat to aquatic life.

Vertical greenery can act as a stress buffer, NTU Singapore study finds

A study published in Landscape and Urban Planning found that viewing buildings with green plants reduced stress levels and improved positive emotions in participants. The research suggests that incorporating vertical greenery into urban design can have a significant impact on mental health, guiding greening efforts in cities.

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.

High-throughput metabolic profiling of single cells

Researchers have developed a novel method for generating metabolic profiles of individual cells, enabling the analysis of over 100 metabolites and lipids from thousands of cells per hour. The method, called SpaceM, uses a combination of fluorescence microscopy and mass spectrometry to analyze single-cell metabolism.

Innovation massively expands view into workings of single cells

Researchers have devised a way to multiply the accessible details of gene activity in individual cells, allowing for better understanding of cancer development and brain function. The new method delivers about a ten-fold improvement in DNA recovery from single cells and reduces sequencing costs by one third.

The twinkle and the brain

Researchers at IST Austria find that ketamine and 60-hertz light flickering can remove the perineuronal net, a structure responsible for stabilizing brain connections. This could lead to new therapeutic approaches for treating post-traumatic stress disorder and amblyopia.

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.

Researchers discover way to improve immune response

A team of researchers has identified a mechanism explaining how Tpex cells can maintain their function for long periods, potentially improving the success rate of immunotherapy. The discovery was made by identifying increased amounts of an immunosuppressive molecule, which reduces activity of mTOR and dampens the immune response.

Epsilon variant mutations contribute to COVID immune evasion

The Epsilon variant's unique mutations in the spike protein reduce antibody neutralization, making it harder for vaccines and past infections to fight. The study reveals an unprecedented mechanism behind this loss of immunity, shedding light on a new strategy for immune evasion.

Synthetic biology circuits can respond within seconds

MIT researchers develop a methodology for designing protein interactions that occur at a fast timescale, allowing circuits to respond within seconds. This approach has potential applications in creating environmental sensors and diagnostics.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Climate and wing coloration in dragonflies

Male dragonflies have evolved larger melanin wing patches in cooler climates to cope with warmer temperatures. Climate change may lead to even smaller patches in the future, according to research published in PNAS.

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.

Hunting and hidden deaths led to 30% reduction in WI wolf population

A new study estimates that Wisconsin's wolf population declined between 27-33% between April 2020 and April 2021, with a majority of additional deaths attributed to cryptic poaching. The researchers estimate the current wolf population is between 695-751, which may represent the maximum due to optimistic assumptions about growth.

Detection of covid-19 via automatic cough analysis

A team of researchers has developed an AI system that can detect COVID-19 through automatic cough analysis. The system uses spectrogram features and demonstrates improved accuracy when incorporating gender information, which is found to be a significant factor in distinguishing between male and female coughs.

Being clean and hygienic need not impair childhood immunity

Researchers at UCL and the London School of Hygiene & Tropical Medicine argue that modern society's emphasis on cleanliness does not impede childhood immunity. Instead, they suggest exposing children to beneficial microorganisms through maternal contact, family members, and natural environments is crucial for immune system development.

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.

Structuring the cerebral neocortex

The neocortex's layered structure is critical for healthy brain function. A team from Charité - Universitätsmedizin Berlin identified two key processes that direct this organization, involving the regulatory protein Zeb2.

Researchers use multivalent gold nanoparticles to develop efficient molecular probe

A team of researchers from Tokyo University of Agriculture and Technology has developed a new approach to identifying and tagging specific proteins. They used multivalent gold nanoparticles as a scaffold to attach carbohydrate ligands and electrophiles, which allowed them to highly efficiently and selectively label carbohydrate-binding...

Asymptomatic adults may be reservoirs of Streptococcus pneumoniae

A study by ITQB NOVA researchers found that asymptomatic adults in Portugal can carry pneumococci for several months, with a median duration of almost two months. This suggests that some adults may act as reservoirs of the bacterium, potentially impacting herd immunity.

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.

Face off for best ID checkers

A new face identification ability test, GFMT2, has been developed to identify high-performing facial recognition individuals known as super-recognisers. This test will help prevent false identity matches made by facial recognition software and improve recruitment for roles such as visa processors and passport issuers.

Seismic observation of subglacial water flow dynamics

Researchers used seismic sensors to study subglacial water flow on the Argentière glacier. The study revealed a complex drainage system with multiple cavities producing high water pressure, accelerating glacier movement.

Dolphin species that live together, do not necessarily compete for food

A new study published in Environmental Research found that various dolphin species can coexist without competing for food, even though they hunt at the same depth. The researchers used stable nitrogen isotopes to determine the trophic level of each species, revealing surprising differences in their diets.

Seabird colony creates 'halo' of depleted fish stocks

A seabird colony on Ascension Island creates a 'halo' of depleted fish stocks, with reduced flying fish numbers detected up to 90 miles from the island. The study provides rare evidence for Ashmole's halo, a pattern of prey depletion first proposed 60 years ago.

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.

COVID-19 news from Annals of Internal Medicine

A retrospective cohort study found that COVID-19 surges in hardest-hit US hospitals doubled mortality rates. Researchers also discovered that nearly a third of persons with mild to moderate COVID-19 experience lingering symptoms months after infection.

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.

Family planning and women's well-being

A family planning program in Bangladesh from 1977 to 2012 showed significant differences in lifetime contraceptive behavior and fertility among women. Women who participated in the program experienced increased body mass index compared to non-participants, particularly those born between 1950 and 1961.

NIH grant will help streamline chemical synthesis

Julian West's lab receives a five-year, $1.8 million NIH grant to simplify the synthesis of organic chemicals, enabling new hydrogen atom transfer modules and 'mutase-like' catalysis. This will accelerate the development of new drugs and compounds with improved properties.