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Science News Archive February 2021


Page 18 of 45

Toward a disease-sniffing device that rivals a dog's nose

Scientists at MIT develop system that detects chemical and microbial content of air samples with greater sensitivity than a dog's nose. The miniaturized detection system, coupled with machine-learning process, can identify distinctive characteristics of disease-bearing samples, matching success rates of dogs in detecting prostate cancer.

How and when do children recognize power and social hierarchies?

A study by Jesús Bas and Núria Sebastián found that children recognize power and social hierarchies at a young age, with older children (18 months) exhibiting surprise when the person who yielded control sat in the chair. This suggests that children can infer social status without witnessing physical dominance.

Identifying "ugly ducklings" to catch skin cancer earlier

A new CAD system uses convolutional deep neural networks to identify skin cancer earlier, analyzing multiple lesions and comparing them to a 'ugly duckling' metric. The technology improved upon previous systems with 90.3% sensitivity and 89.9% specificity.

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.

Researchers identify gene implicated in neuroblastoma, a childhood cancer

A study by Mayo Clinic researchers has identified USP24 as a frequently missing gene in pediatric patients with neuroblastoma, an aggressive form of childhood cancer. The gene plays a crucial role in protecting cells against errors during cell division and its loss may contribute to the development of aggressive tumors.

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.

Apple iPhone 17 Pro

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

The psychological effects of COVID-19 on pregnancy and postpartum

A study by University of Granada researchers reveals that psychological variables contributed to increased anxiety and depression among pregnant women during the COVID-19 pandemic. Women who gave birth during the pandemic reported greater stress in delivery processes and lower quality of care received.

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.

Quantum collaboration gives new gravity to the mysteries of the universe

An international team of experts has demonstrated that only quantum gravity can create a specific ingredient needed for quantum computation. The proposed experiment involves cooling billions of atoms to extremely low temperatures and applying a magnetic field, which would reveal the underlying gravity if it's quantum.

Mimicking a chronic immune response changes the brain

Chronic increases in interleukin (IL)-17A levels in mouse blood reduce microglia activity in the hippocampus, a region crucial for learning and memory. Despite this effect on cognition, spatial memory remains unaffected in mutant mice.

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.

Study: Screen surgery patients for frailty

A study found that assessing surgery patients for frailty before surgery reduces post-operative mortality, regardless of surgical specialty. The review of national patient databases showed that frailty was a consistent risk factor for death after surgery across all specialties.

One in 10 Ohio women thought abortion illegal amid attempts to ban at 6 weeks

A new study from Ohio State University found that one in 10 Ohio women thought abortion was illegal due to legislative attempts to ban the practice at six weeks gestation. Women with lower socioeconomic status and those already facing structural barriers to reproductive healthcare were more likely to believe it was illegal.

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.

Could a nasal spray prevent coronavirus transmission?

Scientists develop nasal antiviral spray that prevents SARS-CoV-2 transmission in ferrets, suggesting its effectiveness in preventing infection in people exposed to the new coronavirus. The lipopeptide-based spray is inexpensive, stable, and does not require refrigeration, making it an ideal solution for halting COVID-19 spread globally.

Changing livestock in ancient Europe reflect political shifts

A study published in PLOS ONE found that political structure and economic conditions played a major impact on choosing livestock in ancient Europe. The research analyzed data from 101 archaeological sites across the northeastern Iberian Peninsula, revealing significant changes in livestock use over time.

Helping Congress get the most from research

A new study by Penn State researchers demonstrates that facilitating researcher-policymaker interactions can influence legislators' thinking about policy issues and drafting legislation. Participating legislative offices sponsored more bills containing research language, and members showed a modest increase in believing research eviden...

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.

Youth exposed to natural disasters report low post-traumatic stress

A study of over 1,700 young people exposed to major hurricanes found that most experienced recovery or low-decreasing post-traumatic stress symptoms. The trajectories among youth reflected a need for health surveillance systems and stepped care interventions after disasters.

New potential therapy for Crohn's disease in children

A new anti-inflammatory nanotherapy has shown promising results in reducing intestinal inflammation and shrinking lesions in a rodent model of severe Crohn's disease. The approach could potentially replace biologic antibody therapies with fewer side effects.

Study shows how some neurons compensate for death of their neighbors

A study by University of Chicago researchers found that some neurons in the brain can compensate for the loss of their neighboring neuron, a process known as synaptic plasticity. However, not all neurons have this capacity, and the remaining neuron's ability to compensate depends on its functional properties.

Irish-Welsh team to investigate oats

Researchers will investigate climate-resistant oats and develop innovative products with industrial partners. The project aims to promote the health, economic, and environmental benefits of growing oats in Wales and Ireland.

Blockchain-based copyright protect

Researchers from the UOC analyzed 18 blockchain-based multimedia content protection systems, identifying gaps in research and shortcoming in interoperability, scalability, and design. The study proposes a taxonomy to guide development of blockchain-based copyright protection systems.

Celestron NexStar 8SE Computerized Telescope

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

Advances in x-ray imaging can help patients with breast cancer

Researchers developed a new X-ray imaging scanner that provides surgeons with a full 3D image of extracted tissue lumps, allowing for improved detection of diseased tissue. This technology has the potential to significantly reduce the need for repeat operations in breast cancer patients.

How the 'noise' in our brain influences our behavior

Researchers at the Max Planck Institute for Human Development argue that neural variability is a key dimension for understanding brain-behavior relationships. Studies have shown that neural variability has a direct influence on behavior, with individuals who can adapt their neural variability performing better on tasks.

Body shape, beyond weight, drives fat stigma for women

A recent study published in Social Psychology and Personality Science found that women with abdominal fat are more stigmatized than those with gluteofemoral fat. The research team also discovered that body shape plays a significant role in driving fat stigma, regardless of weight or ethnicity.

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.

You snooze, you lose - with some sleep trackers

A study by West Virginia University found that top sleep trackers can accurately measure total sleep time and sleep efficiency, but struggle with sleep staging accuracy. Researchers tested eight commercial sleep trackers and found that some devices overestimated or underestimated sleep metrics, while others were unable to quantify slee...

Termite gut microbes could aid biofuel production

Researchers found that microbes from termite species can break down lignin, the toughest of three polymers in straw, up to 37%. The microbes also efficiently degrade hemicelluloses and cellulose, which could lead to increased biofuel production.

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.

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.

Mentally ill kids become less healthy adults

Researchers from Duke University found that mental health struggles in early life can lead to premature aging and advanced diseases in adulthood. Investing in prompt mental health care could prevent later diseases and lower societal healthcare costs.

Climate change and suppression tactics are critical factors increasing fires

A recent study highlights the complex relationship between climate change and forest management in driving wildfires. Climate change is found to be the primary driver of increasing fires in some ecosystems, while fire suppression dominates in others. The research reveals that local responses to these factors can vary greatly within ind...

To reduce stunting in India, space out births

Adequate birth spacing may help alleviate stunting in Indian children, according to a Cornell University study. The study found that when children are born at least three years after their older siblings, the height gap between them disappears.

Protein linked to Alzheimer's, strokes cleared from brain blood vessels

Researchers at WashU Medicine have identified an antibody that removes amyloid plaques from brain tissue and blood vessels, improving vessel function without raising the risk of brain bleeds. This breakthrough discovery offers a potentially safer approach to treating Alzheimer's disease and cerebral amyloid angiopathy.

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.

How Spanish children get to school: New study on active commuting

A recent study found that between 2010 and 2017, 60% of Spanish children actively commuted to school, with no significant variations observed during this period. The researchers attributed the stable trend to efforts in promoting measures for increasing active commuting.

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.

Discovery illuminates how thyroid hormone 'dims' metabolism

Thyroid hormone doesn't operate as a straight-on/off switch but rather shifts the balance between gene activity, revealing a more nuanced mechanism of action. This discovery has significant implications for understanding metabolic diseases and developing targeted therapies.

Friends fur life help build skills for life

Children in a social skills program with therapy dogs improved their moods and engagement levels, with many crediting the dogs for emotional well-being benefits. The study found that canine-assisted interventions can provide unique advantages in building social skills.