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Science News Archive 2021


Page 136 of 510

Apple iPhone 17 Pro

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

Walking efficiently takes next to no thought

A team of scientists found that people can adjust their walking efficiency automatically, even when distracted, without having to think about it. This ability allows for focus on other tasks while walking, such as tracking road bumps and managing daily life.

Insights into the cellular and molecular changes in male infertility

A study published in Cell Reports Medicine reveals the molecular and cellular changes in testicular tissue of infertile men, identifying alterations in spermatogonial stem cell compartment. The research provides new insights into male infertility and prepares ground for better diagnosis.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Finding a metal-oxide needle in a periodic table haystack

The new method uses ink-jet printers and hyperspectral imaging to create hundreds of thousands of material combinations in a single trial run. A cobalt-tantalum-tin compound was discovered that exhibits tunable transparency and acts as a good catalyst for chemical reactions.

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.

Fixing protein production errors lengthens lifespan

A recent study published in Cell Metabolism found that reducing naturally occurring errors in protein synthesis improves both health and lifespan. By engineering a mutation in ribosomes, researchers observed fewer protein mistakes and improved heat resistance, leading to longer lifespans in yeast, worms, and fruit flies.

Volatile organic compounds in feminine hygiene products

A study of reproductive-aged women found that tampon users had higher urinary concentrations of certain VOCs than those who used pads/liners. However, no statistically significant associations were found between the use of menstrual products and VOCs during the menstrual cycle.

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.

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.

Diabetes research: A new model for studies of beta-cell function

A new transgenic pig model has been developed to study beta-cell function and insulin turnover, bridging the gap between rodent models and humans. The model enables researchers to distinguish different pools of insulin secretory granules and follow their rates of turnover in vivo.

Programming synthetic exosomes to optimize wound healing

Researchers at Max-Planck-Gesellschaft engineered synthetic exosomes that regulate cellular signaling during wound closure, leading to faster healing and improved formation of new blood vessels. The study provides a systematic understanding of extracellular vesicle communication and its potential therapeutic application.

Supporting breastfeeding during maternal or child hospitalization

The Academy of Breastfeeding Medicine recommends keeping lactating mothers and their infants together, using direct breastfeeding over pump use whenever possible. The new guidelines also emphasize the importance of considering fluid needs, infection control, and creating a policy to support lactating mothers and breastfeeding children.

Changes to workplace cafeteria menus nudge workers to consume fewer calories

A study at 19 workplace cafeterias found that reducing portion sizes and replacing high-calorie food with lower-calorie options led to a 4.8% reduction in calories purchased per day. This simple intervention could contribute towards tackling obesity, particularly in deprived areas where access to healthy foods is limited.

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.

Fountain of youth for ageing stem cells in bone marrow

Aging stem cells in bone marrow lose function due to epigenetic changes that affect bone production. Researchers reverse these changes by adding acetate, rejuvenating the epigenome and improving stem cell activity. This finding holds promise for treating diseases like osteoporosis.

One protein to rule them all: a central target for treating dementia

Researchers from Tokyo Medical and Dental University have identified HMGB1 as a central protein mediator in dementia, including frontotemporal lobar degeneration and Alzheimer's disease. Treating mice with an antibody to HMGB1 improved their memory and spatial recall, suggesting potential treatment reversal of brain damage.

Prehistoric humans rarely mated with their cousins

Researchers analyzed 1,785 ancient human genomes to determine parental relatedness, revealing that cousin marriages occurred only 3% of the time. The new method allowed for more efficient screening of ancient DNA, also providing insights into population dynamics and demographic impact of agriculture.

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.

Rethink 'cost-benefit analysis' to tackle climate crisis

Researchers argue that improving policy analysis methods can lead to better decisions, particularly for transformative policies like climate change. A new framework focuses on evaluating risks, opportunities, and resilience, rather than just costs and benefits.

Species in polar regions hard hit by climate change

A mathematical model developed at Linköping University predicts that many species in polar regions will become extinct due to global warming, with ecosystems already showing signs of strain. The model simulates the impact of climate change on species interactions and diversity, highlighting the importance of considering ecological proc...

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.

Mayo researchers link gut microbiome to rheumatoid arthritis prognosis

Researchers at Mayo Clinic's Center for Individualized Medicine found that the gut microbiome is connected to a patient's outcome in rheumatoid arthritis. By analyzing stool samples from 32 patients with rheumatoid arthritis, they identified several traits of the gut microbiome linked to future prognosis.

Concentration of microparticles in lakes reflect nearby human activity and land use

A study published in PLOS Biology suggests that microparticle concentrations in lakes are higher than previously reported and can be predicted by surrounding land use. The researchers found that areas with more human activity and lower forest cover had higher microparticle concentrations, while lakes with more active microorganisms had...

COVID-19 transmission risks rise during labor with patients’ heavier breathing

A new study by UCLA researchers reveals that respiratory emissions produced during labor and vaginal delivery can increase the risk of respiratory disease transmission. The findings support the recommendation of providing full PPE, including N95 masks, to healthcare workers in labor and delivery units to prevent COVID-19 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.

Do doctors treat pain differently based on their patients’ race?

Physicians prescribed opioids more frequently to their white patients with new-onset low back pain, while prescribing non-steroidal anti-inflammatory drugs (NSAIDs) to patients of color. The study's findings suggest racial bias in pain treatment, with white patients being more likely to develop long-term opioid reliance.

Modern snakes evolved from a few survivors of dino-killing asteroid

A new study suggests that modern snakes originated from a few species that survived the Cretaceous-Paleogene mass extinction event, which wiped out dinosaurs and other species. Snakes began to diversify into new habitats and exploit new prey, leading to the emergence of diverse lineages such as vipers, cobras, and pythons.

BCL11A: Evidence for neuroprotective effect

Researchers investigated BCL11A's role in dopamine-producing neurons and found that its absence makes them more susceptible to death. The transcription factor may play a protective role for neurons, which could help prevent Parkinson's disease.

New 3D-printed sensor can detect glyphosate in beverages

A new, low-cost 3D-printed sensor can accurately detect and measure glyphosate levels in liquids with high sensitivity and specificity. The sensor uses nano-sized tubes and technology similar to glucose tests to detect the herbicide in orange juice and rice beverages.

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.

USPSTF recommendation on screening for chlamydia, gonorrhea

The USPSTF advises regular screening for chlamydia and gonorrhea in young women due to their high incidence rates. Screening is also recommended for women at increased risk, with current evidence insufficient to support recommendations for men.

New discovery reveals what may be first example of art in the world

A team of researchers identified a sequence of hand and footprints on the Tibetan Plateau, dated between 169,000 and 226,000 years ago. The prints are considered a potential example of art, with some researchers speculating that they may have been created by early human ancestors as a form of performance or creative expression.

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.

Protein from the liver may cause Alzheimer’s disease in the brain

A new study suggests that peripherally produced amyloid-beta protein from the liver can cause neurodegeneration and brain atrophy in mice. The findings indicate that peripheral A-beta has the ability to cause neurodegeneration and may be a potential contributor to human Alzheimer's disease.

Novel technology makes studying gene function easier, faster and more efficient

Researchers at Baylor College of Medicine have developed a novel technology that enables scientists to track genetic manipulations in fruit flies more efficiently. The system uses drug-based markers for selection or counter-selection of genes, reducing the need for manual screening and increasing productivity by at least 10 times.

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.

Energy under control

Researchers have observed the forced release of energy from a Mo isomer using an electron capture process, which could lead to the development of ultra-efficient nuclear batteries. The study, conducted at the Argonne National Laboratory, found a surprisingly high probability of occurrence for this process.

Rapid increase in global light pollution

A new study found that global light pollution has increased significantly over the past 25 years, with the true increase potentially being much higher. The study, led by the University of Exeter, reveals that the transition to solid-state LED technology has masked the impact of light pollution in many regions.

Stronger lettuce stems are a key part of disease resistance

Research reveals that stronger lettuce stems are a key part of disease resistance against Sclerotinia spp., the causative agent of lettuce drop. The study found that wild lettuce species exhibit increased stem strength and reduced symptom development, while modern commercial cultivars are susceptible to rapid basal stem rot.

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.

When Republicans control state legislatures, infant mortality is higher

A new study found that Republican control of state legislatures is associated with increased infant mortality rates, especially among Black infants. The research suggests that the party's influence on social determinants of health, such as safety-net programs and minimum wage, contributes to these disparities.