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Science News Archive December 2019


Page 9 of 36

Solving the puzzle of IgG4-related disease, the elusive autoimmune disorder

A team of scientists from Tokyo University of Science has made a breakthrough in understanding the inflammation mechanism in IgG4-related disease. They found that cytotoxic T lymphocytes (CTLs) and T follicular helper cells (Tfh cells) are necessary for pancreatic inflammation, and propose Janus kinase (JAK) as a suitable therapeutic t...

Apple iPhone 17 Pro

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

Vaping of marijuana on the rise among teens

The 2019 Monitoring the Future (MTF) survey found that vaping of marijuana has more than doubled in the past two years, with past month use nearly tripling. Daily marijuana vaping also increased, reported at 3.5% among 12th graders. Overall, marijuana remains the most commonly used illicit drug by adolescents.

Ice sheet melting: Estimates still uncertain, experts warn

Climate scientists continue to face uncertainties in predicting ice sheet melt rates, which directly impact sea-level rise projections. Recent research highlights the need for improved observations and computer models to refine these estimates and inform climate adaptation efforts.

Marijuana use in e-cigarettes increases among US students 2017-2018

The study found that the proportion of students reporting ever using marijuana in an e-cigarette increased from 11.1% to 14.7% between 2017 and 2018. This increase was seen among certain demographic groups, including males, females, adolescents, high-schoolers, non-Hispanic whites, and Hispanics.

Pregnant women with HIV often not given recommended treatment

A recent study published in JAMA Network Open found that 30% of pregnant women with HIV were prescribed medications with insufficient evidence of safety in pregnancy. The study, led by Kathleen M. Powis, suggests that physicians may be prescribing ahead of recommended guidelines.

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.

Interfacial chemistry improves rechargeability of Zn batteries

Researchers have proposed new concepts for in situ formed and artificial SEIs to fundamentally modulate the electrochemical characteristics of zinc. The interfacial design enables reversible and dendrite-free Zn plating/stripping, resulting in excellent cycling stability with negligible capacity loss.

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.

Little reason for moral panicking after #MeToo

A study by Norwegian University of Science and Technology found that most people agree on what is considered acceptable behavior at work, but emphasizes the importance of clarifying boundaries and addressing stereotypical thinking to effectively reduce sexual harassment.

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.

Getting a good night's sleep complicated by menopause

A new study found that postmenopausal women experience more sleep problems, including insomnia and obstructive sleep apnea, compared to premenopausal and perimenopausal women. Researchers confirmed the increase in sleep disorders as women transition from perimenopause to postmenopause.

New coating hides temperature change from infrared cameras

Researchers at UW-Madison developed an ultrathin coating that decouples temperature and thermal light emission, allowing for temperature-independent thermal radiation. This technology has potential applications in heat transfer, camouflage, and infrared imaging protection.

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.

Battery-powered headgear could short-circuit joint pain

Researchers are developing a non-invasive device that uses transcranial direct current stimulation to desensitize areas tied to knee pain in the brain. Participants wear a cap powered by three AAA batteries and undergo 15, 20-minute sessions over three weeks.

New method captures real-time movement of millions of molecules in 3D

Researchers developed a new method using interferometry to visualize the movement of millions of molecules in 3D, providing insights into biological processes. The technique distinguishes between flow and diffusion movements, enabling the study of virus-cell interactions and cellular dynamics.

Study shows risks for additional procedures after bariatric surgery

A study published in JAMA Network Open found that gastric bypass surgery is associated with a slightly higher risk of returning to the operating room or having other types of interventions. By four years out, researchers estimated that 26.5% of bypass patients had an endoscopy procedure compared to 18% of sleeve patients.

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.

The delicate water lily: A rose by another name?

A new study published in Nature reports the genome sequence of the blue-petal water lily, finding evidence of genetic innovations that may have led to the evolution of floral scent and other traits in early-diverged flowering plants. The research sheds light on the early evolution of all angiosperms.

Study: Human management helps rare plants, butterflies survive hurricane

A new study from North Carolina State University shows that ongoing habitat management can help prevent hurricane-driven extinctions. The research found that a rare Florida plant, the pineland croton, weathered the damage from Hurricane Irma better in plots under human management than those left alone.

Study finds racial/ethnic disparities in pain treatment by emergency responders

A new study by Portland State University researchers found racial and ethnic disparities in pain treatment by emergency responders, with Hispanic and Asian patients receiving lower quality care. The study analyzed 25,732 health records and found that odds of pain assessment were 21-31% lower for these groups compared to white patients.

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.

Switching cereals in India for improved nutrition, sustainability

A new study from the University of Delaware suggests that India can sustainably enhance its food supply and reduce environmental impacts by reducing reliance on rice and planting more nutritious crops like sorghum and finger millet. The traditional cereals have higher nutritional quality, use less water and energy, and emit fewer green...

Forgetfulness might depend on time of day

Researchers identified a gene in mice that influences memory recall at different times of day, causing mice to be more forgetful just before waking up. The study found that the circadian clock regulates memory retrieval via dopamine and PKA-induced GluA1 phosphorylation.

Researchers support new strategies for HIV control

Elite controllers, a subset of HIV-positive individuals, have distinct transcriptional profiles and enhanced ribosomal function in their lymphoid tissue CD8+ T cells. This allows them to suppress HIV replication through cytokine production, presenting an alternative approach to traditional viral eradication strategies.

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.

Grain traits traced to 'dark matter' of rice genome

Researchers found that key changes during rice domestication reflect selection on traits determined by a portion of the genome that does not transcribe proteins. Non-coding RNAs, suspected to play important roles in regulating growth and development, were also implicated.

Deprivation strongly linked to hospital admissions

Research from the University of Cambridge found that people living in deprived areas are more likely to be admitted to hospital, with manual workers and those with low educational attainment at highest risk. The study suggests that addressing environmental deprivation is crucial for reducing hospitalization rates.

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.

Using robots to inspect sewer pipes

The University of Texas at Arlington is collaborating with the city of Waxahachie on a pilot project to inspect several miles of sewer pipelines using robotic technology. This will allow for more accurate estimates of pipeline service life, reducing the need for costly replacements and enabling 'microsurgery' repairs.

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.

Scientists discover a new mechanism in childhood kidney cancer

Researchers found that a problem in gene-regulatory process can cause normal cells to turn malignant and produce Wilms' tumor. The implicated reader protein causes problems by acquiring a new property and being too active, leading to abnormal gene expression and tumor formation.

Walking and cycling to work linked with fewer heart attacks

A new national study found that walking and cycling to work were associated with a significant reduction in heart attacks. For women who walked to work, there was an associated 1.7% reduction in heart attacks the following year, while men who cycled to work experienced the same decrease.

Meta Quest 3 512GB

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

Pregnancy hypertension risk increased by traffic-related air pollution

Traffic-related air pollution has been linked to an increased risk of hypertensive disorders in pregnant women, with exposure to particulate matter (PM2.5) associated with a 50% higher likelihood of developing preeclampsia. The study highlights the need for further research into the impact of environmental exposures during pregnancy.

Celestron NexStar 8SE Computerized Telescope

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

Marijuana vaping increases among US teens 2018-2019

Marijuana vaping reported by US adolescents increased from 2018 to 2019, with a notable rise in 10th and 12th graders. The study found an absolute increase of 6.5% among 12th graders and up to 5.6% among 10th graders.

Solar power from 'the dark side' unlocked by a new formula

A new thermodynamic formula reveals bifacial cells can generate 15-20% more sunlight to electricity than monofacial cells, taking into consideration different terrain and surfaces. The formula helps companies design more efficient next-generation solar cells.

New space image reveals cosmic 'candy cane'

A new image of the Milky Way's center captures a colorful composite of giant molecular clouds, with details on radio filaments and star factories. Scientists use GISMO data to observe microwaves at large scales, making detailed observations for the first time.

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.

Stevia remains the most discussed low/zero-calorie sweetener

The International Stevia Council's 2019 Online Conversation & Trends Analysis reveals stevia as the most discussed low-calorie sweetener, with doubled mentions in both English- and Spanish-speaking countries. Positive sentiment around stevia remains high, increasing by 5% in English-speaking countries.