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Science News Archive December 2020 - Page 36


Page 36 of 39

Living with autonomous systems "we can trust"

A new report emphasizes the need for interdisciplinary approaches to develop safer autonomous systems, engaging experts from humanities, social sciences, and engineering. The report recommends creating a network of institutes to share ideas and concerns, ultimately developing a regulatory framework.

SourceUniversity of Texas at Austin·DateDec 2, 2020

No nanoparticle risks to humans found in field tests of spray sunscreens

A Penn State research team conducted field tests on three commonly used mineral-based aerosol sunscreens, finding trace nanoparticles but at safe levels. The study suggests that the canister design and active ingredients are unlikely to produce vastly different amounts of nanoparticles.

SourcePenn State·JournalAerosol Science and Technology·DateDec 2, 2020
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.

Active camouflage artificial skin in visible-to-infrared range

A Seoul National University team developed a soft thermoelectric device capable of active cooling and heating, allowing for thermal camouflage in both visible and infrared spectrums. The device incorporates thermochromic liquid crystal to control light reflectance, enabling various colors to be expressed by adjusting temperature.

SourceSeoul National University·JournalAdvanced Functional Materials·DateDec 2, 2020

What social distancing does to a brain

Researchers found a brain molecule called Pth2 that changes expression levels in response to social conditions. When zebrafish are isolated, Pth2 disappears, but its levels rapidly rise when they're added back into a group, indicating a 'thermometer' effect.

SourceMax-Planck-Gesellschaft·JournalNature·DateDec 2, 2020

New machine learning tool tracks urban traffic congestion

A new machine learning algorithm, TranSEC, uses traffic datasets from UBER drivers and publicly available sensor data to map street-level traffic flow over time. This creates a big picture of city traffic, allowing for near-real-time analysis and predictive modeling.

SourceDOE/Pacific Northwest National Laboratory·DateDec 2, 2020
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.

Social, behavioral modifications can be positive trigger to mitigating gun violence

Researchers found that active shooter drills can cause emotional distress and uncertainty among students, highlighting the need for evidence-based strategies. Social-emotional learning programs and a safe, supportive environment are key to reducing gun violence in schools, according to West Virginia University Professor Keith Zullig.

SourceWest Virginia University·JournalJournal of Adolescent Health·DateDec 2, 2020
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Xenophobic and racist policies in the US may have harmful effect on birth outcomes

Research at Columbia University's Mailman School of Public Health finds a 7% increase in preterm birth rates among women from MENA countries impacted by the 2017 travel ban. Anti-immigrant and Islamophobic policies are associated with detrimental shifts in health outcomes for pregnant women and infants.

SourceColumbia University's Mailman School of Public Health·JournalSocial Science & Medicine·DateDec 2, 2020

'Message in a bottle' tracks plastic pollution

Researchers from the University of Exeter and ZSL used GPS and satellite tags in plastic bottles to track plastic pollution in the Ganges river and Bay of Bengal. The study found that plastic pollution can travel thousands of kilometers in just a few months, with some bottles traveling up to 2,845km in 94 days.

SourceUniversity of Exeter·JournalPLOS ONE·DateDec 2, 2020
Apple iPhone 17 Pro

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

Nanomaterials enable dual-mode heating and cooling device

Researchers at Duke University have developed a novel thermal contact system that can switch between heating and cooling modes. The device uses specially designed nanoscale materials to harness or expel specific wavelengths of light, reducing energy consumption by nearly 20% in the US.

SourceDuke University·JournalNature Communications·DateDec 2, 2020

Natural three-dimensional nonlinear photonic crystal

Scientists have developed a natural potassium-tantalate-niobate (KTN) perovskite nonlinear photonic crystal with 3D spontaneous Rubik's domain structures, enabling compensation of phase-mismatch along arbitrary directions. This breakthrough paves the way for new applications in optical communications, quantum entanglement sources, and ...

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·DateDec 2, 2020

AI abdominal fat measure predicts heart attack and stroke

A study using AI to analyze abdominal CT images found that visceral fat area is independently associated with future heart attacks and strokes. The analysis, which outperformed traditional BMI measures, may lead to more accurate cardiovascular risk assessments.

SourceRadiological Society of North America·DateDec 2, 2020

Personality changes predict early career outcomes

A 12-year longitudinal study found that young people who develop higher levels of conscientiousness and emotional stability tend to be more successful in their early careers. The study's findings suggest that personality growth can have real-world benefits for career outcomes.

SourceUniversity of Houston·JournalPsychological Science·DateDec 2, 2020
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.

CZI awards nearly $32 million to advance biomedical imaging

The Chan Zuckerberg Initiative (CZI) has awarded nearly $32 million in funding to support biomedical imaging researchers and technology development. The grants will focus on visualizing proteins in cells at near-atomic resolution to better understand health and disease.

SourceChan Zuckerberg Initiative·DateDec 2, 2020

Once in a lifetime floods to become regular occurrences by end of century

Researchers at Stevens Institute of Technology predict that 100-year and 500-year flood levels will become regular occurrences in Jamaica Bay, New York by the end of the century. Climate change is expected to lead to more intense and frequent storms, causing greater flooding even if storm intensity remains the same.

SourceStevens Institute of Technology·JournalClimatic Change·DateDec 2, 2020

New butterfly-inspired hydrogen sensor is powered by light

Researchers developed a light-activated hydrogen sensor inspired by butterfly wings, offering precision results at room temperature. The sensor can detect tiny amounts of hydrogen in people's breath and measure concentrations across a full range.

SourceRMIT University·JournalACS Sensors·DateDec 2, 2020
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.

Optimal horse racing speed pinpointed by mathematical analysis

Mathematical analysis reveals optimal Thoroughbred horse racing speed by analyzing track data and considering factors such as course length, surface type, and weather conditions. The study provides insights into the physical limitations of horses and the importance of course-specific factors in determining optimal speed.

SourcePLOS·JournalPLOS ONE·DateDec 2, 2020

Science snapshots from Berkeley Lab

Berkeley Lab researchers have developed a machine learning model that can design structures with desired optical properties, speeding up the process by at least two to three orders of magnitude. The CUORE experiment has collected a record-breaking dataset for a 'neutrinoless' experiment, surpassing previous experiments by about 10 times.

SourceDOE/Lawrence Berkeley National Laboratory·JournalCell Reports Physical Science·DateDec 2, 2020

The making of mysterious mazes: how animals got their complex colorations

A study published in Science Advances found that complex animal colorations can evolve through a simple mechanism: pattern blending by hybridization. This hypothesis is supported by an analysis of over 18,000 fish species, revealing strong associations between intricate maze-like patterns and simple spot patterns.

SourceOsaka University·JournalScience Advances·DateDec 2, 2020

New microscope technique reveals details of droplet nucleation

A new microscopy technique allows direct observation of droplet nucleation, enabling precise mathematical descriptions of the process. The technique improves contrast and resolution, revealing a different relationship between site density and nearest-neighbor function.

SourceMassachusetts Institute of Technology·JournalCell Reports Physical Science·DateDec 2, 2020
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.

Understanding quality of life for caregivers of persons with traumatic brain injury

A new special edition of Rehabilitation Psychology examines the diverse ways caring for an individual with TBI impacts well-being, including family life, mood, physical health, sleep and social relationships. A unique tool called the TBI-CareQOL Measurement System helps standardize measures for quality of life in caregivers.

SourceMichigan Medicine - University of Michigan·JournalRehabilitation Psychology·DateDec 2, 2020

Kidney disease leading risk factor for COVID-related hospitalization

A recent analysis of Geisinger Health System's electronic health records reveals chronic kidney disease as the leading risk factor for COVID-19-related hospitalization. The study found that patients with end-stage renal disease were 11 times more likely to be admitted to the hospital compared to those without kidney disease.

SourceGeisinger Health System·JournalPLOS ONE·DateDec 2, 2020

Major depressive disorder may be defined by a distinct gut microbiome

Researchers identified distinct gut microbiome signatures in individuals with major depressive disorder (MDD), including higher levels of Bacteroides and lower levels of Blautia. A biomarker-based diagnostic tool may help physicians diagnose MDD, providing a companion to clinical interviews.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Advances·DateDec 2, 2020
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.

Common neural circuit and potential target for anxiety and obsessive-compulsive disorder

A glutamatergic neuronal circuit from the prelimbic prefrontal cortex to the nucleus accumbens is responsible for co-occurring anxiety and obsessive-compulsive-like behaviors. Histamine presynaptic H3 receptor activation in this circuit ameliorates stress-induced anxiety and obsessive-compulsive-like behaviors.

SourceNanjing University School of Life Sciences·JournalProceedings of the National Academy of Sciences·DateDec 2, 2020

Visualisation reveals how a protein 'hunkers down' to conserve energy

A team of scientists has developed a visualization technique that reveals the intricate mechanism by which a key protein involved in muscle activity shuts itself down to conserve energy. This discovery provides new insights into how genetic mutations in this protein can lead to various diseases.

SourceUniversity of Leeds·JournalNature·DateDec 2, 2020
Meta Quest 3 512GB

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

Operations on screen: Creating an accessible surgery simulator

A UOC project has developed a 3D virtual environment to train surgeons' psychomotor skills, providing real-time feedback and metrics. The tool has been tested with over 148 users, showing its validity in improving surgeons' performance at different stages of their careers.

SourceUniversitat Oberta de Catalunya (UOC)·JournalJMIR Serious Games·DateDec 2, 2020
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.

Drug attenuates weight gain in animals fed a high-fat diet

A new drug, originally developed to treat bacterial infections, has shown the capacity to increase cell energy expenditure and reduce weight gain in mice fed a high-fat diet. The treatment works by reprogramming white adipose tissue cells to behave like brown adipose tissue, burning calories to generate heat.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·DateDec 2, 2020

Reconstruction of eye tissue gives new insight into outer retina

Scientists at the University of Southampton have made a breakthrough in reconstructing eye tissues from the outer retina using serial block face scanning electron microscopy. The study provides a clear picture of the 3D organisation of the retinal pigment epithelium, which could help understand causes of damage leading to sight loss.

SourceUniversity of Southampton·JournalInternational Journal of Molecular Sciences·DateDec 2, 2020

Impactful science teaching requires minimum five hours instruction weekly

A study by University of Vermont researcher Tammy Kolbe found that inquiry-based science teaching requires minimum five hours instruction weekly to use recommended learning practices. Only one-third of eighth-grade students receive at least 5 hours of science instruction each week.

SourceUniversity of Vermont·JournalTeachers College Record The Voice of Scholarship in Education·DateDec 2, 2020

This 3D printer doesn't gloss over the details

Researchers developed a combined hardware and software printing system that uses off-the-shelf varnishes to finish objects with realistic, spatially varying gloss patterns. The technology has potential applications in fine art reproduction and prosthetic design, offering near-flawless replicas and more realistic-looking prosthetics.

SourceMassachusetts Institute of Technology·DateDec 2, 2020
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.

African trade routes sketched out by mediaeval beads

Researchers from Université de Genève analyzed 16 glass beads found in Mali and Senegal, discovering they were made of Egyptian, Levantine coast, and Middle Eastern glass. The study sheds light on sub-Saharan Africa's extensive trade networks with Europe and Asia during the region's early development.

SourceUniversité de Genève·JournalPLOS ONE·DateDec 2, 2020
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.

New glue sticks easily, holds strongly, and is a gas to pull apart

Researchers at Dartmouth College have discovered a class of molecular materials that can be used to make temporary adhesives that don't require force for removal. These non-permanent glues offer expanded design strategies for bonding surfaces together and can lead to new manufacturing techniques and pharmaceutical design.

SourceDartmouth College·JournalChemistry of Materials·DateDec 2, 2020

CNIC scientists identify a new diagnostic and therapeutic target for cardiovascular disease

Researchers at CNIC have identified mitochondrial protein ALDH4A1 as a potential marker for cardiovascular disease diagnosis and a possible therapeutic target. The study found that ALDH4A1 accumulates in plaques and its plasma concentration is elevated in patients with carotid atherosclerosis, suggesting it as a biomarker.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalNature·DateDec 2, 2020

Rethinking race and kidney function

A new study from Harvard Medical School forecasts the impact of eliminating race from kidney function formulas on Black patients with kidney disease. The analysis suggests that removing race-based adjustments may lead to earlier diagnoses and better access to care, but also restricts access to certain medications and treatments.

SourceHarvard Medical School·JournalJAMA·DateDec 2, 2020

NASA interns extending internetworking off-world

A cohort of NASA interns developed network protocols for Delay/Disruption Tolerant Networking (DTN), enabling flexible communication in space and remote areas. DTN will revolutionize space communications, empowering NASA to establish a sustained presence on the Moon.

SourceNASA/Goddard Space Flight Center·DateDec 2, 2020

What's killing killer whales?

A decade-long analysis of necropsies reveals that killer whales are vulnerable to multiple human-caused deaths, affecting all age classes. The study underscores the need for improved conservation strategies and mitigation efforts to protect these endangered species.

SourceUniversity of California - Davis·JournalPLOS ONE·DateDec 2, 2020
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.

Greenland ice sheet faces irreversible melting

A new study warns that the Greenland ice sheet will experience irreversible melting if global warming exceeds 2°C, leading to significant sea-level rise and permanent changes. The ice sheet's decline could be reversed with actions to counteract global warming before it's too late.

SourceUniversity of Reading·JournalThe Cryosphere·DateDec 2, 2020

Why does it matter if most Republican voters still think Biden lost?

A recent survey by Bright Line Watch found that fewer than a third of Republican voters have confidence in the national vote count, with nearly half expecting Donald Trump to be inaugurated for a second term. The study highlights the persistence of partisan divisions and mistrust in election results among Trump supporters.

SourceUniversity of Rochester·DateDec 2, 2020