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Science News Archive 2021


Page 254 of 510

Sudden cardiac death more likely to fell persons with HIV infection

A new study by UC San Francisco finds that individuals with HIV are more than twice as likely to die from sudden cardiac death due to fibrosis in the heart. The study also reveals that one-third of sudden deaths initially attributed to cardiac causes were actually caused by drug overdoses.

How should governments offer subsidies for clean-energy heating?

A new study from Aalto University recommends that government subsidies for clean-energy heating be allocated to areas where homeowners can least afford the upfront cost, namely those with lower housing prices. This approach aims to promote energy-efficient heat pumps and reduce carbon emissions in Finland's residential buildings.

Apple iPhone 17 Pro

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

Underwater robot offers new insight into mid-ocean "twilight zone"

Mesobot, a versatile underwater robot, provides unprecedented insight into the mid-ocean twilight zone. The robot tracks and records high-resolution images of zooplankton, gelatinous animals, and particles, greatly expanding scientists' ability to observe creatures in their mesopelagic habitat with minimal disturbance.

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.

Electrohydraulic arachno-bot a fascinating lightweight

Researchers at the Max Planck Institute have developed a new type of joint inspired by spiders' hydraulic actuation mechanisms. The joints use electrohydraulic forces to enable robots to move rapidly and interact with various environments, making them ideal for small-scale robotic systems.

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.

Sweeping analysis concludes there's no cheating old age

Researchers found that human life expectancy increase is not due to slowing aging but rather improved survival rates among children and young adults, supporting the 'invariant rate of ageing' hypothesis which suggests a relatively fixed rate of ageing across species.

How do we know where things are?

Researchers at Dartmouth College discovered that the brain uses a 'steadycam' strategy to stabilize visual experience, perceiving frames as stationary even when they're clearly moving. This 'paradoxical stabilization' effect creates the illusion of stable images, similar to how our brains discount motion in everyday life.

Most rivers run dry -- now and then

A new study found that between 51-60% of the world's rivers stop flowing periodically, highlighting the need for a paradigm shift in river science and management. Non-perennial rivers provide critical water sources and support biological diversity, but are often overlooked and mismanaged.

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.

P-glycoprotein removes Alzheimer's-associated toxin from the brain

Researchers at Southern Methodist University have found that P-glycoprotein can transport amyloid-β proteins out of the brain, which are associated with Alzheimer's disease. This discovery could lead to new treatments for the disease affecting nearly 6 million Americans.

Defining the Hund physics landscape of two-orbital systems

International collaboration identifies four correlated metals in two-orbital systems, including a Hund's metal that can give rise to superconductivity. The discovery overturns conventional wisdom and opens up new avenues for understanding strongly correlated materials.

Over-the-counter fungicide can disrupt hormones

A recent study by the National Food Institute found that clotrimazole, an over-the-counter fungicide, can significantly alter sex hormones in pregnant rats and their developing fetuses. This exposure was observed at concentrations comparable to those experienced by human mothers taking clotrimazole to treat vaginal thrush. The research...

Preformed gel particles tested for enhanced oil recovery

Experts from Kazan Federal University and partners have tested novel gel particles to improve oil recovery in high-temperature and mineralized reservoirs. The new technique showed a significant increase in recovery, up to 100 thousand tons, and proved the efficiency of reagents under harsh conditions.

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.

EU provides 15 million euros of funding for Arctic project

The EU is funding a 15 million euro project to develop an integrated 'pan-Arctic Observing System of Systems' (pan-AOSS) via international collaboration. The project aims to improve the situation by expanding and coordinating Arctic Earth observation capacity, including measurements from Indigenous communities.

How a supermassive black hole originates

A team of researchers has proposed a new explanation for the origin of supermassive black holes, suggesting that they are formed through the collapse of a massive seed black hole produced by the gravitational instability of a dark matter halo. This process, known as gravothermal collapse, can lead to the creation of a seed black hole w...

Ozone pollution has increased in Antarctica

Researchers analyzed 25 years of Antarctic data, finding that ozone levels near the ground have risen by up to 0.14 ppb per year, primarily driven by natural and human sources. This increase can have negative impacts on the region in the future due to ozone's ability to trap heat near Earth's surface.

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.

How sex trafficking trauma affects the way its survivors parent

A study found that sex trafficking survivors' trauma affects their parenting, causing them to be overly protective and emotionally withdrawn. Despite this, they cope by finding meaning in motherhood and social support, and often experience strong connections with their children. The research highlights the need for policies and program...

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.

Study finds "serious problems with privacy" in mobile health apps

The study found that 88% of mobile health apps can access and potentially share personal data, including advert identifiers, email addresses, and geolocation information. Clinicians are advised to inform patients about potential privacy risks before installing and using these apps.

National Geographic Society grant to fund research into Easter Island

Anthropologists at Binghamton University have received a grant from the National Geographic Society to study ancient Rapa Nui communities' water management techniques. Their research will focus on coastal seeps and inland resources, shedding light on how past populations dealt with freshwater scarcity.

Scientists unravel the function of a sight-saving growth factor

Researchers have determined how peptides derived from PEDF protect neuronal cells in the retina layer, which could lead to treatments for degenerative retinal diseases such as age-related macular degeneration. The study found that these peptides work by binding to a protein receptor and processing omega-3 fatty acids like DHA.

Researchers identify new gene that may increase risk of ALS

Researchers identified a new gene, TP73, associated with an increased risk of sporadic ALS. Mutations in this gene have been found to interfere with nerve cell health and lead to abnormal cell differentiation and increased cell death. This discovery provides a potential target for therapy development.

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.

The vision: Tailored optical stimulation for the blind

Researchers design new stimulation protocol for optic nerve stimulation to produce consistent and meaningful visual sensations. They use machine learning approaches to optimize protocols, which have shown promising results in artificial neural networks and psychophysical tests.

A distinctive inflammatory signature found in a genetic form of ALS

A distinctive inflammatory signature has been found in C90RF72 ALS patients, characterized by an increase in pro-inflammatory molecules in serum and cerebrospinal fluid. This finding informs the development of targeted anti-inflammatory therapies for this subgroup of ALS patients.

Induced hypothermia after cardiac arrest did not improve survival

A large international randomised clinical trial found that induced hypothermia in unconscious cardiac arrest patients did not reduce mortality. The study included 1900 adult patients and showed a slightly increased risk of impact on blood circulation and cardiac arrhythmia in the group treated with hypothermia.

Meta Quest 3 512GB

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

Hydrophobic copper catalyst to mitigate electrolyte flooding

Scientists developed a new copper catalyst with sharp needle structures, enhancing CO2 reduction reaction efficiency by mitigating electrolyte flooding and increasing selectivity. The study published in Journal of the American Chemical Society showcases the stability and productivity of the hierarchical Cu electrode.

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.

Researchers translate a bird's brain activity into song

A study from University of California San Diego demonstrates the possibility of re-creating a bird's song by reading its brain activity, laying the foundation for building vocal prostheses for humans. The approach uses machine learning algorithms to map neural patterns to mathematical equations modeling the physical changes in the bird...

Stem cells may hold a key to developing new vaccines against COVID-19

Researchers discovered a stem cell-mediated defense mechanism that reactivates dormant tuberculosis in mice infected with SARS-CoV-2, suggesting potential for new vaccines and avoiding global TB pandemic. This discovery may help develop novel therapeutic approaches against COVID-19 and target antiviral activities.

ALMA discovers earliest gigantic black hole storm

Researchers used ALMA to detect a galactic wind driven by a supermassive black hole 13.1 billion years ago, pushing back the start of galaxy-growth interactions by 100 million years. The observation reveals coevolution between supermassive black holes and galaxies since less than a billion years after the Universe's birth.

Light in darkness: an experimental look at Paleolithic cave lighting

A study replicated Paleolithic lighting systems using archaeological evidence, revealing diverse features among the different systems. The researchers found that wooden torches worked best for exploring caves, while grease lamps were suitable for lighting small spaces over a long period.

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.

New in Ethics & Human Research, May-June 2021

A new study reveals that American Indian and Alaska Native individuals are underrepresented in clinical studies, with only 1% of participants from these groups. The authors call for further research to improve ethical inclusion in clinical research.

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.

New super-resolution microscopy method approaches the atomic scale

Scientists at Weill Cornell Medicine developed a computational technique that greatly increases the resolution of atomic force microscopy, revealing atomic-level details on proteins and biological structures. The new method allows researchers to study biological molecules under physiologically relevant conditions, providing high-resolu...

Heat spells doom for Aussie marsupials

Researchers from Australian National University warn that climate change may be causing more deaths among Australian marsupials, including the greater glider, due to heat-induced eating habits. The study highlights the importance of protecting food sources and restoring nutrient-rich forests to help these animals survive.

Fluke 87V Industrial Digital Multimeter

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

OU professor receives Council on Foreign Relations fellowship

Samer Shehata, a University of Oklahoma professor, has received the International Affairs Fellowship from the Council on Foreign Relations. The fellowship will allow him to analyze U.S. foreign policy toward the Middle East and observe how autocratic regimes cooperate and maintain power.

Intermittent fasting 'no magic bullet for weight loss' says new study

A new study published in Science Translational Medicine found that intermittent fasting diets are not the most effective way to lose weight. Participants who followed a traditional diet with reduced calorie intake lost more weight and fat mass compared to those who fasted on alternate days.