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Science News Archive 2021


Page 6 of 510

Mystery of children’s ‘chalky teeth’ explained

Case studies show one in five children suffer from chalky tooth enamel, causing severe toothache and decay. Researchers from The D3 Group have found that albumin contamination blocks hardening of enamel on teeth growing inside the jaw, triggered by childhood illnesses.

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.

Crows keep special tools extra safe

A new study reveals that New Caledonian crows prioritize the storage of complex and efficient foraging tools over basic ones. The research suggests that these birds have an understanding of the relative value of different tool types, similar to humans when handling valuable items.

Study: Move More Often Supports Better Long-term Weight Loss for Older Adults

A new study found that incorporating frequent periods of enjoyable movement into daily life leads to better short-term and long-term weight loss compared to structured exercise. The intervention, which encouraged participants to move more often throughout the day, resulted in similar weight loss and improved maintenance relative to a h...

Apple iPhone 17 Pro

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

Reduce frailty to lower dementia, study finds

A large-scale new study found that frailty was a strong risk factor for dementia, even among people at high genetic risk, and that it can be modified through a healthy lifestyle. Over 10 years, dementia was detected in 1,762 participants, with those who were frail before diagnosis having a much higher risk.

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.

Anxiety in children and adolescents could lead to young adult psychosis

A new study found that children and adolescents with persistent high levels of anxiety are more likely to develop psychosis in their early 20s. Treating early anxiety by targeting stress hormones and non-resolving inflammation during childhood and teenage years could help prevent young adults from developing psychosis.

Study: Brain mechanisms involved in learning also drive social conformity

Researchers found that the same brain systems involved in learning from trial and error are also engaged when people conform to social norms. The study used electroencephalograms to track brain activity and showed that participants' behavior was influenced by their peers' actions, leading to changes in generosity and selfishness.

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.

Toxoplasma parasites manipulate brain cells to survive

Researchers have discovered how dormant Toxoplasma parasites in the brain manipulate host cells to survive. The parasites release proteins called Inhibitor of STAT1 transcription (IST) to suppress immune signals, allowing them to evade detection and cause disease.

Novel biosensors set to revolutionise brain-controlled robotics

A novel carbon-based biosensor developed at the University of Technology Sydney detects electrical signals sent by the brain, translating them into commands for autonomous robotic systems. The biosensor overcomes three major challenges in graphene-based biosensing: corrosion, durability, and skin-contact resistance.

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.

Could EKGs help doctors use AI to detect pulmonary embolisms?

A pilot study suggests that machine learning algorithms combining EKG and electronic health record data can more effectively screen for pulmonary embolisms than current tests. The fusion model was found to be 15-30% more effective at accurately identifying cases, especially severe ones.

Walking in a 360° video with foot vibrations for seated observers

Researchers developed a virtual walking system that uses 360° videos and scene-congruent foot vibrations to improve sensations of walking and perception of ground materials. The system was found to enhance walking-related sensations and telepresence, particularly in indoor corridors and snowy ground scenes.

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.

Creating invisibility with superconducting materials

Researchers have discovered a new material, α-MoO3, that can be used to create invisibility concentrators with improved performance and lower production costs. The study suggests the use of α-MoO3 to control energy flow and scatter light, enabling the creation of devices with near-perfect invisibility.

New Alzheimer’s prevention trial in young people

A new clinical trial is enrolling young people with rare genetic mutations that cause early-onset Alzheimer's disease. The study will test gantenerumab to prevent the buildup of toxic protein amyloid beta, which can slow or stop the disease.

Microplastic discovered in ‘pristine’ Pyrenees mountain air

A recent study has discovered microplastic in the high-altitude air surrounding Pic du Midi Observatory, located in the Pyrenees mountains. The researchers analyzed 10,000 cubic meters of air and found a concentration of approximately one particle per 4 cubic meters. This finding indicates intercontinental atmospheric transport of micr...

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.

Slowness of gait can predict risk of frailty in older people

Researchers found that slowness of gait alone can predict loss of capacity to perform basic and instrumental activities of daily living (BADL and IADL) in older adults. The study analyzed data from over 3,000 people aged 60 and over, concluding that measuring gait speed is sufficient for efficient prediction of functional disability.

Lifesaving device providing breath of hope

A team of researchers from Georgia Tech developed a 3D-printed tracheal replacement splint to treat Ramiah, a 4-year-old girl with tracheal agenesis. The Airway Support Device was used in her successful surgery and has improved her breathing capabilities.

Tennessee AgrAbility continues to help farmers, ranchers

The Tennessee AgrAbility Project has received new funding from the USDA, bolstering its impact and success into 2022. The program, a collaboration between the University of Tennessee Extension and NIFA, assists farmers and farm workers with disabilities by providing support, resources, and equipment to enhance their quality of life.

Switching in the brain: A fresh perspective

A transdisciplinary research team at Göttingen Campus has found a new perspective on the rhythmic processes in the brain. They discovered that adapting interneurons can switch between very slow rhythms and fast rhythms, challenging previous assumptions about their function.

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.

Bringing cells closer to form new tissues

Scientists from Tokyo Medical and Dental University create polyrotaxane-based biomaterials that improve epithelial cell-cell adhesion, enabling the repair of damaged tissues. The study suggests a potential application in clinical dentistry for treating periodontal disease.

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.

A robot assisting elderlies in standing up, walking, and sitting down

A robot has been developed to assist elderly users with daily actions like standing up, walking, and sitting down. The robot estimates the user's state using a small number of sensors, including calculating center of gravity candidates, to provide necessary assistance and prevent accidents.

Trapping vortices in thin superfluid films

Physicists at the University of Queensland have developed a comprehensive understanding of vortex pinning and unpinning in two-dimensional superfluids. The study reveals four regimes governing these interactions, including a 'pair creation' regime where vortices are pinned to defects.

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.

Wise old elephants keep the young calm

A study by the University of Exeter found that older male elephants help keep younger, more aggressive males calm by policing their behavior. Without these older bulls, adolescent elephants become more fearful and aggressive towards non-elephant targets, posing a threat to humans.

Robotic manipulators inspired by nature

Researchers developed soft manipulators based on pneu-nets, mimicking biological systems like elephant trunks and octopus tentacles. These structures can grasp and manipulate soft objects with increased flexibility.

Plants as cold specialists from the Ice Age

A team of evolutionary biologists and botanists found that the spoonweed genus, which emerged as a cold specialist during the Ice Age, repeatedly adapted to rapidly alternating cold and warm periods. The researchers identified physiological adaptations to drought and salt stress that helped the plants develop high tolerance to cold.

Outpatient management of patients with post-prematurity respiratory disease

A multidisciplinary panel of experts developed guidelines for outpatient management of patients with post-prematurity respiratory disease (PPRD), regardless of prematurity or disease severity. The recommendations address diagnostic testing and clinical management, aiming to improve outcomes for premature infants born prematurely.

Over half of people with multiple long-term conditions experience chronic pain

A recent study found that over half (53.8%) of people with two or three long-term conditions and around 75% of those with four or more report at least one site of chronic pain. Chronic pain is a significant concern for individuals with multiple long-term conditions, highlighting the need for improved management and treatments.

Fluke 87V Industrial Digital Multimeter

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

Botox injections may reduce anxiety

Researchers found that Botox-treated patients reported anxiety significantly less often than those undergoing different treatments for similar conditions. The data used was from the FDA's Adverse Effect Reporting System and showed a 22-72% lower risk of anxiety for four out of eight conditions and injection sites.

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.

First model to predict lifetime risk of heart failure

A new Northwestern University study has derived and validated the first set of risk prediction models for lifetime risk of heart failure. The models can identify individuals at greatest risk, especially among young adults, allowing physicians to start prevention measures sooner.