Bluesky Facebook Reddit Email

Science News Archive 2021


Page 260 of 510

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.

How do social media influence ethnic polarization?

Researchers at New York University found that deactivating Facebook accounts lowers attitudes toward out-groups, especially in ethnically homogenous areas. This effect was not observed in more mixed environments.

Carbon emissions from hydroelectric reservoir

A study on carbon dioxide emissions downstream of the Kariba Dam in Zambia reveals highly variable emissions, influenced by seasonal and hourly changes. Failing to account for these variations could lead to biased estimates of tropical reservoir emissions.

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.

Hope for infertile men; mice could hold the secret

Researchers discovered a genetic mutation in FSIP2 protein that affects sperm flagella, leading to infertility. Mice with the mutation had impaired sperm movement, while those overproducing FSIP2 were fertile with longer, faster-swimming sperm.

New app tracks human mobility and COVID-19

Researchers developed an interactive web application to analyze connections between human mobility, government policies and COVID-19 cases on a global scale. The app shows the impact of COVID-19 on human movement patterns and informs decision-making for higher-level policies.

A frozen leap forward

Scientists at UC Santa Barbara and Regenerative Patch Technologies have developed a new cryopreservation method for stem cell-based therapy for age-related macular degeneration. The method allows for long-term storage and distribution of the implant, extending shelf life and increasing accessibility to patients.

Persistence pays off in the human gut microbiome

Researchers investigated bacterial persistence in the human gut microbiome, identifying three dispersal strategies and finding that most strains are highly persistent. The study's results will inform targeted probiotic and treatment approaches to maintain a healthy gut microbiome.

Apple iPhone 17 Pro

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

Plant-based diet protects from hypertension, preeclampsia

Two studies find that a plant-based diet protects rats from hypertension and preeclampsia, even when exposed to high-salt diets. The researchers believe that dietary alterations can shift the gut microbiota, reducing disease incidence.

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.

Scientists make highly maneuverable miniature robots controlled by magnetic fields

Researchers at Nanyang Technological University created millimetre-sized robots that can be controlled using magnetic fields to perform highly manoeuvrable manipulations. These robots improve on existing small-scale robots by optimizing their ability to move in six degrees-of-freedom, and can rotate 43 times faster than previous devices.

Free and nutritious school lunches help create richer and healthier adults

A new study from Lund University in Sweden finds that universal school lunch programs have positive effects on students' height, health, education, and lifetime income. The program introduced free nutritious meals to all primary school students, resulting in a three percent higher lifetime income for participants.

Meta Quest 3 512GB

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

As climates change, prepare for more mosquitoes in winter, new study shows

A new study from the University of Florida finds that mosquitoes can adjust to rapid changes in temperature, indicating they may become active year-round. The research suggests that as climate change makes winters warmer, mosquitoes in temperate regions will be well-prepared to be active during those times.

Suicidal thoughts, attempts among US adolescents

A recent study examines differences in suicidal thoughts and nonfatal suicide attempts among US adolescents over the last three decades. The research highlights varying rates of suicidal ideation and behavior across different racial and ethnic groups.

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.

Discrimination and the gut microbiome

Research highlights the connection between discrimination and altered gut microbiomes, which can impact metabolic and immune functions. The study's authors emphasize the need for further investigation into the relationship between the human gut microbiome and health inequities.

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.

More than a bumpy ride: turbulence offers boost to birds

A Cornell University-led study reveals that birds can use turbulence to their advantage, offering a potential boost to the aerospace industry. The research found that birds' accelerations are highly irregular and fluctuating, similar to particles in turbulent airflows, allowing them to harness energy from wind speed.

Study reveals COVID-19 risk factors for those with IDD

A study of nearly 550 adults with IDD found that age, larger residential settings, Down syndrome, and chronic kidney disease were the most common risk factors for COVID-19 diagnosis. Heart disease was most associated with COVID-19 deaths. The study highlights the need for increased funding for IDD services to ensure better health outco...

Accelerated burning of Rocky Mountain forests

Researchers analyzed 20 years of fire reconstructions and US government records to show a significant increase in burnt area since 1984. High-elevation subalpine forests are experiencing record-high wildfire activity, accounting for 72% of total burnt area since 1984.

Depletion of Iran's aquifers

Groundwater extraction in Iran has declined by an average of 18% due to physical limits, while deep well extraction has increased, leading to further depletion. The study reveals widespread aquifer depletion and salinization across all 30 sub-basins, posing significant risks to the country's water resources.

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.

Huge prehistoric croc 'river boss' prowled SEQ waterways

Researchers at the University of Queensland have identified a new species of large prehistoric crocodile in south-east Queensland's waterways, estimated to be around seven metres in length. The ancient creature, named Gunggamarandu maunala, belonged to a group of tomistomines and lived between two and five million years ago.

Shrinking to survive: Bacteria adapt to a lifestyle in flux

When E. coli bacteria starve, their cytoplasm shrinks, concentrating nutrients, while the periplasm increases in volume as the inner membrane pulls away from the outer membrane. This reversible adaptation may help them survive until they find their next nutrient source.

Into the belly of the bee

Research reveals minor microbes, like fungi and environmental bacteria, play crucial roles in maintaining bee gut health. These forgotten microbes produce antibiotics, break down toxins, and metabolize nutrients, helping bees resist pathogens and climate change.

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 shows high rates of kidney disease among adults with diabetes

A study by National University of Ireland Galway found that nearly half of adults with diabetes attending a dedicated clinic have signs of established chronic kidney disease. The research suggests that careful medical management is not enough to prevent the development of kidney disease in people with diabetes.

Boundary of heliosphere mapped for the first time

For the first time, scientists have created a 3D map of the heliosphere boundary using data from NASA's Interstellar Boundary Explorer (IBEX) satellite. The boundary marks the edge of the solar system and protects Earth from interstellar radiation.

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.

Improving dialysis through design

Researchers at Washington University in St. Louis have developed a new way to design grafts that decreases the risk of clotting in hemodialysis patients. By tailoring the angle of connection between the graft and vein, surgeons can reduce thrombosis rates substantially.

New model accounts for the effect of behavior changes to predict COVID-19 cases

Researchers at Brown University developed a new modeling approach that captures the impact of behavioral components on infectious disease transmission. The model accurately reproduces case rates throughout the pandemic in the US and individual states, providing valuable insights for forecasting future trends and scenarios.

Celestron NexStar 8SE Computerized Telescope

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

Are we genetically 'grounded'?

A recent study by Hebrew University researchers identified molecular factors that allow birds to fly, differing from mammals and reptiles. The ephrin-B3 molecule plays a crucial role in coordinating wing movement, enabling birds to flap and take flight.

Autopsy Study of Patients With/Without COVID-19

This autopsy study investigated skeletal muscle and myocardial inflammation in patients with COVID-19, compared to those dying from other causes. The findings suggest distinct inflammatory patterns in the two groups, which may help explain COVID-19 severity and mortality.

Rice lab peers inside 2D crystal synthesis

The Rice University engineers have unveiled the process of MoS2's synthesis in a chemical vapor deposition (CVD) furnace. Their simulations showed that it takes three steps to deposit an atomically thin lattice onto a surface, involving sublimation, reaction with sulfur atoms, and crystallization.

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.

Bionic reconstruction: New foot for 'Mia' the bearded vulture

Scientists at MedUni Vienna have successfully developed a bionic foot for a bearded vulture named Mia using osseointegration, a technique that directly attaches the prosthetic to the bone. The procedure has enabled Mia to regain her ability to land and walk with both feet, making her the first 'bionic bird'.

Black holes help with star birth

Satellite galaxies that orbit massive central galaxies can form new stars due to active black holes clearing their path through intergalactic gas. Researchers used systematic observations and cosmological simulations to find this counter-intuitive effect.

COVID-19 can cause severe inflammation in the brain

A study published in Immunity found that COVID-19 causes severe inflammation in the brain, involving microglial cells and T-cell interactions. The research reveals a unique inflammatory pattern compared to other brain diseases, suggesting a misdirected immune response contributing to symptoms.

Improving bone marrow transplants in mice to help fight disease

Researchers at the University of Tsukuba developed a novel technique to generate BM chimeric mice without irradiation, promoting cost-effectiveness and animal safety. This approach enables scientists to study the immune system in both healthy and diseased states using culture-based enrichment of hematopoietic stem and progenitor cells.

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.

Why do we continue to see outbreaks of SARS-CoV-2 in care homes?

Care home residents over 70 have a delayed and weaker immune response to vaccines compared to younger individuals, making them more susceptible to SARS-CoV-2 infections. This phenomenon has been confirmed by researchers from Charité - Universitätsmedizin Berlin.

Star's death will play a mean pinball with rhythmic planets

A study led by the University of Warwick predicts that four massive planets in a perfect rhythm will be destabilized and turned into a chaotic system when their sun becomes a white dwarf. The planets' movements will become highly uncertain, with even small changes having a significant impact on the outcome.

Anticoagulation in patients hospitalized with COVID-19

This study examines the association of anticoagulation treatment with mortality rates in hospitalized COVID-19 patients, finding a significant link between anticoagulation and increased mortality. The study's findings suggest that anticoagulation therapy may not be beneficial for patients hospitalized with COVID-19.

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.