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Science News Archive 2021


Page 303 of 510

Machine learning (AI) accurately predicts cardiac arrest risk

Researchers developed a machine learning model that accurately predicted cardiac arrest risk by combining timing and weather data. The results showed that Sundays, Mondays, public holidays, winter, and low temperatures were associated with higher risks of cardiac arrest.

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.

Pirfenidone reduces scar tissue in patients with heart failure

Early-phase trial found pirfenidone significantly reduced a marker of heart muscle scarring compared to placebo in patients with preserved ejection fraction. The study suggests that fibrosis is an effective treatment target and could lead to personalized approaches to prevent or reverse scarring.

Resistance of African forests to El Niño

Researchers analyzed carbon loss and gain in African tropical forests between 1984 and 2017, finding no significant increase in tree mortality despite extreme climate conditions. Intact forests continued to grow biomass and remain a carbon sink, suggesting they may be more resilient to climate extremes.

Quasicrystal from first nuclear detonation

Researchers identified a unique icosahedral quasicrystal in a red trinitite sample from the Trinity test, the first nuclear bomb detonation. The discovery reveals that similar thermodynamic conditions may produce other quasicrystals.

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.

Archaeologists teach computers to sort ancient pottery

Researchers at Northern Arizona University developed a computerized method that uses machine learning to analyze visual information, allowing for rapid sorting of thousands of pottery fragments. The system achieved accuracy comparable to human experts and provided a visual record of its thought process.

Researchers reveal new tool to help prevent suicide

Researchers at Swansea and Cardiff universities have developed the Risk of Suicide Protocol (RoSP), a guide for health professionals to identify individuals at risk of taking their own lives. The protocol assesses 20 key aspects of a person's life, enabling clinicians to formulate problems and develop safety plans to help those in need.

The brain networks underlying imagination

Researchers found that two brain subnetworks are responsible for constructing and evaluating imagined scenarios, with the ventral network focused on vividness and the dorsal network on valence. This discovery sheds light on the neural mechanisms underlying imagination.

Uzuner receives funding for economic impact analysis

Ozlem Uzuner and her team will analyze the economic impact of potentially malignant incidental findings in radiology reports. They aim to optimize health outcomes by identifying correct follow-up recommendations, studying tumor information, and creating an incidentaloma database.

Apple iPhone 17 Pro

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

Physical activity may help to close the wealth gap in school attainment

A study of over 4,000 children in England found that physical activity supports academic attainment and helps close the achievement gap between wealthy and less-advantaged pupils. Engaging in sports like swimming or ball sports promotes self-regulation, leading to better emotional control and academic progress.

Alcohol may have immediate effect on atrial fibrillation risk, events

A new study found that consuming even one glass of wine, beer, or other alcoholic beverage increases the chance of an episode of atrial fibrillation occurring within four hours. The study tracked objective, real-time alcohol consumption and heart rhythm disturbance using wearable sensors and blood tests.

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.

Climate and nutrient effects on a California current

Climate-driven ocean acidification and deoxygenation impact the California Current, leading to increased phytoplankton biomass and subsurface respiration rates. This eutrophication can reduce oxygen concentrations and pH levels, with potential effects on fisheries and aquatic ecosystems.

Linguistic and biological diversity linked

Researchers found that Indigenous languages overlap with 8,200 species ranges in African UNESCO sites, suggesting a strong connection between cultural and biodiversity preservation. The study suggests engaging Indigenous people in governance to redesign management strategies and conserve localities.

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.

Pet trade may pose threat to bushbaby conservation

A new study suggests that the pet trade in bushbabies could be causing genetic changes within their wild populations, affecting their ability to adapt to human expansion. Researchers analyzed DNA samples from bushbabies across South Africa and found unusual gene mutations that may indicate secret animal trafficking.

Investigating energy explosions in space

A NASA mission evaluates interactions between the sun and earth's magnetic fields, which can cause explosive energy transfers disrupting technology systems. A UTA professor recruits a first-year doctoral student to join the mission, where he will learn about meaningful magnetospheric events.

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.

Pollutants rapidly seeping into drinking water

Researchers found that pollutants can reach groundwater supplies quickly, posing a significant risk to drinking water quality. The study highlights the increased risk of pollution in karst regions with thin soils, such as the Mediterranean region.

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.

Exposure to lead can cause epigenetic changes even at relatively low levels

Researchers found that even low levels of lead exposure can cause epigenetic changes, including a decrease in DNA methylation, which may precede cellular disorders. The study suggests that these changes could be an early warning sign of potential health problems, highlighting the need for better public policy to minimize lead exposure.

Newly published data provides clearer picture of volcano collapse

New data on Anak Krakatau volcano flank collapse provides a clearer picture of the event, which triggered a devastating tsunami in Indonesia. The research used synthetic aperture radar images, field observations, and aerial photographs to create a more accurate model of the volcano before and after it collapsed.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Mammals in the time of dinosaurs held each other back

A new study suggests that it was not dinosaurs but other mammals that competed with modern mammals before and after the mass extinction of dinosaurs. The research identifies the evolutionary limits placed on different groups of mammals, revealing a more complex story of competition between distinct mammal groups.

Mother's scent triggers face-selective responses in infants

Research using electroencephalography found that exposure to maternal odors facilitates categorization of face-like objects in infants' brains. This study suggests that the right occipitotemporal cortex plays a key role in this process, potentially indicating an earlier emergence of hemisphere advantages for face recognition.

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.

Shortcut for dendritic cells

Researchers at ETH Zurich have discovered that dendritic cells can migrate more quickly to lymph nodes via a newly found pathway during inflammation. This route allows them to bypass the slow and energy-intensive process of entering capillary vessels, enabling faster immune activation and response.

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.

New approach to growing cubic boron nitride: a pathway to next-gen semiconductors

A new method for growing bulk single-crystal nitrides has been developed by Lehigh University materials scientist Siddha Pimputkar, which could lead to more-efficient and less-costly electronic devices. The approach involves using lithium nitride as a precursor and a specialized pressure cooker to overcome the challenges of growing lar...

New technology makes tumor eliminate itself

Researchers at the University of Zurich have developed a new technology called SHREAD that enables cancer tumors to produce therapeutic agents on demand, reducing side effects and improving delivery of Covid-related therapies.

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.

Multi-gene testing could detect more hereditary cancer syndromes

A new study found that up to 38.6% of colon cancer patients with a hereditary cancer syndrome may be undetected by current universal tumor-screening methods. Researchers recommend implementing multi-gene panel testing as part of the standard care for all colorectal cancer patients.

Rare COVID-19 response in children explained

A Yale-led study discovered that children with multi-system inflammatory response (MIS-C) exhibit unique immune system signatures, including elevated alarmins and adaptive immune responses. These findings may aid in diagnosis and early treatment of the condition, which can be fatal if left untreated.

Diamonds engage both optical microscopy and MRI for better imaging

Researchers have developed microdiamond tracers that can provide information via both MRI and optical fluorescence simultaneously, allowing high-quality images up to a centimeter below the surface of tissue. This technique enables faster imaging and overcomes the limitation of light microscopy in probing deeper tissues.

How plankton hold secrets to preventing pandemics

A University of Colorado Boulder study suggests that invertebrate immunity can prevent disease transmission, offering insights into COVID-19 and other zoonotic diseases. Researchers observed that some plankton can stop fungal spores from entering their bodies, while others clear infections within a limited window after exposure.

Routine testing before surgery remains common despite low value

Preoperative testing is often unnecessary for low-risk surgeries, yet it continues to be ordered despite evidence suggesting its low value. Patients who had a complete medical history and physical done during a visit were more likely to have had preoperative testing.

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.

Air quality linked to increased risk of Alzheimer's

Researchers at UC Davis found a link between traffic-related air pollution and an increased risk for age-related dementia, including Alzheimer's disease. Exposure to polluted air accelerated Alzheimer's disease characteristics in both rats with and without the risk gene.

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.

Engineered organism could diagnose Crohn's disease flareups

Researchers at Rice University engineered a pH-sensing gut bacteria to diagnose inflammatory bowel diseases like Crohn's disease. The organism glows green when it encounters acidic conditions, reflecting the level of acidity. This discovery could lead to non-invasive diagnosis and monitoring of acidosis in humans.