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Science News Archive 2021


Page 93 of 510

How our past shapes the present

A study published in Nature Communications demonstrates how the brain constructs the present moment through recent past experiences. The researchers discovered that brief stimuli leave a trace in the brain for almost a minute, accumulating biases in perception that allow subjects to fine-tune their sensory channels over time.

Scientists have learned how to weld a new kind of steel

Researchers from South Ural State University and China's Xi'an Jiaotong University have successfully welded A606 (Cor-Ten) steel, a promising material with high atmospheric corrosion resistance. The study optimized welding conditions to achieve high strength properties and necessary microstructure.

Apple iPhone 17 Pro

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

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.

Why do we remember stressful experiences better?

The study found that memories of objects from stressful situations rely on similar brain activity as memories of the stress trigger itself. This suggests that the mechanism reinforcing emotional memories is rooted in the neural link between important aspects of the episode and the stress trigger.

Changes in adverse pregnancy outcomes associated with pandemic

The study found a significant increase in pregnancy complications during the COVID-19 pandemic, affecting approximately 1.4 million women in the US. Researchers attributed these changes to various factors, including social distancing measures, delayed prenatal care, and increased risk of maternal mortality.

Accelerating the discovery of new materials for 3D printing

Researchers at MIT develop a data-driven process using machine learning to optimize new 3D printing materials with multiple characteristics. The system lowers costs and lessens environmental impact by reducing chemical waste and suggesting unique chemical formulations that human intuition might miss.

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.

Unlined waste disposal pits endanger groundwater in San Joaquin Valley

A new study by PSE Healthy Energy reveals that over 16 billion barrels of oil and gas wastewater were disposed of in unlined pits, contaminating regional aquifers with salts and toxins. The Tulare Basin, home to four million people, is at risk due to a lack of regulatory protections for groundwater near these disposal sites.

Intelligent optical chip to improve telecommunications

The INRS team has developed an intelligent optical chip that uses autonomous learning approaches to generate optical waveforms, paving the way for further advances in telecommunications. The device can autonomously adjust to a user-defined target waveform with strikingly low technical and computational requirements.

COVID curriculum brings science home for high school students

Researchers at the University of Arizona developed a new curriculum that allows high school students to learn about coronaviruses, genetics, and bioinformatics from home. The lesson plan, which was created before COVID-19 vaccines were introduced, teaches students how different vaccines work and analyzes protein sequences. Students who...

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.

Emergency food management sector ill-prepared for digital disaster management

The emergency food management sector is ill-prepared for digital disaster management due to the lack of effective digital tools. A recent study found that existing digital strategies have not been proven effective or tested, leaving personnel with no guidance on potential best practices and the impact of digital tools.

How to program DNA robots to poke and prod cell membranes

Researchers at UNSW and University of Sydney develop DNA 'nanostructures' to effectively manipulate synthetic liposomes, leading to potential applications in biosensing and mRNA vaccines. The study also explores the creation of 'mini biological computers' that can sense their environment and respond to signals.

Behaviour resembling human ADHD seen in dogs

Researchers identified environmental factors and breed-specific traits contributing to canine ADHD-like behaviour. Dogs who spent more time alone at home were more hyperactive, impulsive and inattentive, while breeds bred for work displayed increased hyperactivity and impulsivity.

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.

Ultrafast optical switching can save overwhelmed datacenters

Researchers have demonstrated ultrafast optical circuit switching for datacenters using integrated soliton microcombs, which can handle increasing bursty datacenter applications while reducing overheads. The proposed architecture employs a central comb system to improve power efficiency and reduce complexity.

Cellular environments shape molecular architecture

Scientists devised a method to analyze the NPC directly inside cells, capturing its true size and structure. The results showed that the pore had a wider central channel than previously thought, emphasizing the importance of analyzing complex molecules in their native environments.

Plankton head polewards

Research finds that plankton diversity will increase in warmer waters, but this may lead to a reduction in zooplankton diversity in the tropics. As climate changes, plankton species from tropical regions will shift polewards, potentially disrupting marine ecosystems and fisheries.

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 technique identifies pathogenic particles in the blood

Researchers from Aarhus University have developed a revolutionary technique to identify pathogenic particles in the blood, which determine the development of autoimmune diseases like Systemic Lupus Erythematosus. The technique allows for early diagnosis and potentially life-threatening consequences such as blood clots and organ damage.

Delta and Delta Plus evade the antibody response

Researchers found that Delta and Delta Plus infect lung cells with higher efficiency than the original virus, evading antibodies induced by infection and vaccination. The new variants were also resistant to some therapeutic antibodies, leading to reduced inhibition.

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.

Social disadvantage in the UK has a lasting impact on childhood asthma

A UK study found that social disadvantage in early childhood increases the risk of developing persistent asthma by 70%, with nearly two-thirds of the risk attributed to early life exposures. This highlights the need for public health measures and policies to support families and improve housing conditions.

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.

Key protein linked to appetite and obesity in mice

A recent study from the Okinawa Institute of Science and Technology Graduate University identified a crucial protein linked to increased appetite and obesity in mice. The researchers found that mice lacking this protein, XRN1, exhibited leptin resistance, leading to insatiable hunger and weight gain.

Attitudes toward vaccine travel requirements

A recent study published in Tourism Management explores travelers' attitudes toward pre-travel vaccination requirements. The researchers found that willingness to vaccinate and beliefs that others should vaccinate are key predictors of support for vaccine mandates. Travelers who had previously tested positive for COVID-19 or traveled m...

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.

Skin stem cells get moving for enhanced skin regeneration

A study published in the Journal of Cell Biology found that skin stem cell motility is crucial for wound healing and skin regeneration. The researchers discovered that a specific molecule, EGFR, drives skin stem cell movement and coordinates the production of collagen COL17A1.

Fluke 87V Industrial Digital Multimeter

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

Our brains have a “fingerprint” too

Researchers have discovered that each person has a unique brain fingerprint that can be identified in just over a minute using functional connectomics. The study's findings have significant implications for the diagnosis and treatment of neurological disorders such as Alzheimer's disease, autism, and stroke.

Plant-eating lizards on the cusp of tooth evolution

Several lizard groups evolved teeth with multiple tips, allowing them to transition to plant-based diets and increasing speciation rates. The study also found that tooth evolution was more flexible in lizards and snakes than mammals.

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.

A map of mouse brain metabolism in aging

Researchers created the largest metabolome analysis of the mouse brain, revealing distinct chemical conversions between brain regions. Aging mice showed significant metabolic differences in brain sections, with lipids playing a crucial role in changes to brain function.

Ultrafast magnetism: heating magnets, freezing time

The study reveals that the interaction between phonons and electrons is crucial for ultrafast demagnetization. The data show a temperature threshold below which this mechanism does not occur, indicating another microscopic mechanism at lower temperatures.

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.

Using quantum Parrondo’s random walks for encryption

Assistant Professor Kang Hao Cheong and his team discovered that chaotic switching for quantum coin Parrondo's games has similar underlying ideas to encryption. They found that using pre-generated chaotic sequences enhances the work, making it easier to invert the encrypted message to obtain the original state.

A rapid mechanism for muscle self-repair independent of stem cells

Researchers discovered a rapid muscle self-repair mechanism that relies on the rearrangement of muscle fibre nuclei, independently of muscle stem cells. This process occurs rapidly after physiological damage or exercise-induced injury and represents a time- and energy-efficient protective mechanism for minor lesions.

Obese pigs help us understand human obesity

The study provides a unique genomic blueprint for understanding the complex mechanisms linking obesity with comorbidities like type 2 diabetes and cardiovascular diseases. The Ossabaw pig's genome is highly relevant to humans, making it an ideal model for studying human obesity.

Meta Quest 3 512GB

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