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Science News Archive 2021 - Page 254


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.

SourceUniversity of California - San Francisco·JournalNew England Journal of Medicine·DateJun 16, 2021

Scientists demonstrate promising new approach for treating cystic fibrosis

Researchers at UNC School of Medicine developed an improved oligonucleotide therapy strategy that can correct gene defects underlying cystic fibrosis. The approach has shown promising results in both human cells and mice, with potential applications for treating other pulmonary diseases.

SourceUniversity of North Carolina Health Care·JournalNucleic Acids Research·DateJun 16, 2021
Apple iPhone 17 Pro

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

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.

SourceAalto University·JournalEnvironmental Research Letters·DateJun 16, 2021

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.

SourceWoods Hole Oceanographic Institution·JournalScience Robotics·DateJun 16, 2021

Alternate-day intermittent fasting leads to less fat loss than traditional daily energy restriction

A new study suggests that alternate-day intermittent fasting may offer no unique health benefits over a standard daily diet. In contrast, traditional daily energy restriction resulted in greater weight and fat loss. The researchers note that longer studies with larger groups are needed to confirm these findings.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateJun 16, 2021
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.

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.

SourceMax Planck Institute for Intelligent Systems·JournalAdvanced Science·DateJun 16, 2021
Meta Quest 3 512GB

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

Mystery solved: Dust cloud led to Betelgeuse's 'Great Dimming'

Astronomers have explained Betelgeuse's sudden dimming by a cloud of dust formed from stardust, which temporarily blocked the star's light. The discovery was made using new images taken with the European Southern Observatory's Very Large Telescope.

SourceCenter for Astrophysics | Harvard & Smithsonian·JournalNature·DateJun 16, 2021

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.

SourceDuke University·JournalNature Communications·DateJun 16, 2021

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.

SourceDartmouth College·JournalProceedings of the National Academy of Sciences·DateJun 16, 2021
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.

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.

SourceMcGill University·JournalNature·DateJun 16, 2021

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.

SourceSouthern Methodist University·JournalPLOS ONE·DateJun 16, 2021

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.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·DateJun 16, 2021

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...

SourceTechnical University of Denmark·JournalToxicology and Applied Pharmacology·DateJun 16, 2021

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.

SourceKazan Federal University·JournalJournal of Petroleum Science and Engineering·DateJun 16, 2021
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.

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.

SourceAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research·DateJun 16, 2021

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...

SourceUniversity of California - Riverside·JournalThe Astrophysical Journal Letters·DateJun 16, 2021

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.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateJun 16, 2021
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.

Model helps analyze decision-making on adopting Type 2 diabetes medical guidelines

A new computational framework simulates the dissemination of Type 2 diabetes guidelines, highlighting the impact of sociocultural context and complex social interactions. The Culturally Infused Agent Based Model (CI-ABM) improves analysis and prediction of guideline-dissemination behaviors.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalIEEE Journal of Biomedical and Health Informatics·DateJun 16, 2021

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...

SourceColumbia University's Mailman School of Public Health·JournalPLOS ONE·DateJun 16, 2021
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.

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.

SourceBMJ Group·JournalThe BMJ·DateJun 16, 2021

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.

SourceBinghamton University·DateJun 16, 2021

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.

SourceNIH/National Eye Institute·JournalJournal of Neurochemistry·DateJun 16, 2021

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.

SourceAmerican Academy of Neurology·JournalNeurology·DateJun 16, 2021
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.

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.

SourceEcole Polytechnique Fédérale de Lausanne·DateJun 16, 2021

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.

SourceThomas Jefferson University·JournalAmyotrophic Lateral Sclerosis and Frontotemporal Degeneration·DateJun 16, 2021
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.

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.

SourceLund University·JournalNew England Journal of Medicine·DateJun 16, 2021

UCLA receives $4.8M to improve genetic disease risk estimates in diverse populations

The National Institutes of Health is funding a research consortium to develop methods for calculating polygenic risk scores (PRS) in people from different ancestries, particularly those with admixed ancestry. Researchers at UCLA will focus on incorporating genetic diversity into PRS to yield accurate and equitable predictions.

SourceUniversity of California - Los Angeles Health Sciences·DateJun 16, 2021

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.

SourceUniversity of Science and Technology of China·JournalJournal of the American Chemical Society·DateJun 16, 2021
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.

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...

SourceUniversity of California - San Diego·JournalCurrent Biology·DateJun 16, 2021

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.

SourceElsevier·JournalAmerican Journal Of Pathology·DateJun 16, 2021

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.

SourceNational Institutes of Natural Sciences·JournalThe Astrophysical Journal·DateJun 16, 2021

Pandemic-era crowdfunding more common, successful in affluent communities

Researchers found that COVID-19-related crowdfunding campaigns were more successful in affluent communities, where people had more resources to donate. Despite the challenges of online crowdfunding, the study highlights existing socioeconomic divides and suggests that it can exacerbate inequality.

SourceUniversity of Washington·JournalSocial Science & Medicine·DateJun 16, 2021
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.

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.

SourceThe Hastings Center·JournalEthics & Human Research·DateJun 16, 2021
Celestron NexStar 8SE Computerized Telescope

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

Early lung cancer coopts immune cell into helping tumors invade the lungs

Researchers at Mount Sinai Hospital discovered that early-stage lung cancer tumors hijack immune cells called tissue-resident macrophages to facilitate their invasion of lung tissue. This process allows the tumor to evade the immune system and grow into more deadly stages of cancer.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNature·DateJun 16, 2021

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...

SourceWeill Cornell Medicine·JournalNature·DateJun 16, 2021

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.

SourceAustralian National University·JournalTrends in Ecology & Evolution·DateJun 16, 2021
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.

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.

SourceUniversity of Oklahoma·DateJun 16, 2021

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.

SourceUniversity of Bath·JournalScience Translational Medicine·DateJun 16, 2021