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Science News Archive 2021 - Page 163


Page 163 of 510

The giant jurassic dinosaur Allosaurus was a scavenger, not a predator

New research from Portland State University suggests that Allosaurus, a large carnivorous dinosaur, acquired most of its calories by scavenging on sauropod carcasses. The study's agent-based model and morphological analysis support this hypothesis, challenging 150 years of established thought about Allosaurus' ecological role.

SourcePortland State University·JournalEcological Modelling·TypeData/statistical analysis·DateAug 24, 2021

Geneticists map the rhinoceros family tree

Researchers have helped fill gaps in the rhino evolutionary family tree by analyzing genomes of living and extinct species, finding that African and Eurasian lineages separated 16 million years ago and that low genetic diversity is a natural state for rhinoceroses, not a consequence of recent population declines

SourceCell Press·JournalCell·TypeObservational study·DateAug 24, 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.

Psychological capital may be the antidote for working in a pandemic, WVU study suggests

A new WVU study found that psychological capital, including self-efficacy, optimism, hope, and resiliency, can help employees cope with the stress of working during a pandemic. Workers who used adaptive coping strategies fared better, but those relying on maladaptive behaviors experienced higher levels of stress.

SourceWest Virginia University·JournalInternational Journal of Workplace Health Management·DateAug 24, 2021

These robots can move your couch

Student researchers at the University of Cincinnati developed artificial intelligence to train robots to work together to move a couch around obstacles and through a narrow door. The robots successfully completed the task 95% of the time in simulations, with nearly equal success without re-training.

SourceUniversity of Cincinnati·JournalIntelligent Service Robotics·TypeComputational simulation/modeling·DateAug 24, 2021

Like Venom Coursing Through the Body: Researchers Identify Mechanism Driving COVID-19 Mortality

A study published in the Journal of Clinical Investigation has identified an enzyme called secreted phospholipase A2 group IIA as a key mechanism driving COVID-19 severity. The enzyme is found to be associated with increased mortality rates, particularly when its levels are high, and could provide a new therapeutic target for reducing ...

SourceUniversity of Arizona·JournalJournal of Clinical Investigation·TypeData/statistical analysis·DateAug 24, 2021

Cosmic rays may be key to understanding galactic dynamics

Recent studies suggest that cosmic rays, originating from supernova remnants and pulsars, have a significant impact on galactic dynamics and star formation. The streaming instability triggered by cosmic rays in the interstellar medium can create plasma waves that heat and scatter gas, influencing the formation of planets and stars.

SourceAmerican Institute of Physics·JournalPhysics of Plasmas·DateAug 24, 2021

Understanding Antarctic ice historic changes could reveal future changes

Researchers used glacial isostatic adjustment modeling to reconstruct the Antarctic Ice Sheet before the Last Glacial Maximum, revealing a thickened ice sheet that depressed the continent and generated high sea levels. The study aims to improve understanding of ice-sheet response to climate changes.

SourceResearch Organization of Information and Systems·JournalGeology·TypeCommentary/editorial·DateAug 24, 2021
Apple iPhone 17 Pro

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

Building a better vaccine for SARS CoV-2

Researchers have identified a potential advantage of weakened SARS-CoV-2 variants as immunogens, sparking interest in their use for live-attenuated vaccines. The variants, which emerge rapidly during cell culture propagation, show resistance to subsequent infection with both the parental strain and emerging variants.

SourceAmerican Society for Microbiology·JournalmBio·DateAug 24, 2021

A novel gene involved in male infertility: ZFP541

A new gene ZFP541 has been discovered by researchers at Kumamoto University to control the completion of meiosis in spermatogenesis. The study found that ZFP541 plays an essential role in regulating meiosis and is expressed in late meiotic prophase, binding to regulatory regions of meiosis-related genes.

SourceKumamoto University·JournalNature Communications·TypeExperimental study·DateAug 24, 2021

Climate change threatens seal hunting by Indigenous Alaskans

The Iñupiaq people's seal hunting season has shrunk by about one day per year over the past 17 years due to sea ice decline. This reduction in flexibility affects hunters' ability to prepare and hunt, as they now have less time to adapt to changing conditions.

SourceUniversity of Alaska Fairbanks·JournalEnvironmental Research Letters·DateAug 24, 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.

Correlative chemical imaging directly in neurons

Researchers use super-resolution infrared imaging combined with X-ray fluorescence nano-imaging to study amyloid toxicity on a subcellular level. They found that the distribution of trace elements in neurons is related to molecular mechanisms of Alzheimer's disease, offering new insights into preventing neuronal damage.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateAug 24, 2021

‘Safe and well tolerated’ - the prototype breathing device for covid patients

A low-cost prototype breathing device designed for poorer-resourced healthcare settings has shown promising results in a pilot trial involving healthy volunteers. The device provides continuous positive airway pressure (CPAP) therapy and operates with oxygen concentrators, which are commonly used in low-pressure systems.

SourceUniversity of Leeds·JournalFrontiers in Medical Technology·TypeExperimental study·DateAug 24, 2021

Research sheds new light on decreased performance under pressure

Researchers from Carnegie Mellon University and the University of Pittsburgh conducted a study on three Rhesus monkeys, finding that their performance declined by up to 25% when offered a jackpot reward. The team also discovered a link between sensory motor processing and emotional processing in the monkeys' brains.

SourceCollege of Engineering, Carnegie Mellon University·JournalProceedings of the National Academy of Sciences·DateAug 24, 2021

CT scans suggest possible lung destruction in some asthmatics

A novel CT scan-based approach detects changes in lung tissue indicating emphysema and airway constriction in patients with asthma. This finding may explain why conventional anti-inflammatory treatments are ineffective in some asthmatics, paving the way for personalized management of the disease.

SourceHokkaido University·JournalJournal of Allergy and Clinical Immunology·DateAug 24, 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.

High cholesterol fuels cancer by fostering resistance to a form of cell death

Researchers at Duke University Medical Center identified a mechanism where breast cancer cells use cholesterol to develop tolerance to stress, allowing them to resist ferroptosis and proliferate. This finding highlights the importance of lowering cholesterol in preventing cancer progression and offers new approaches for treatment.

SourceDuke University Medical Center·JournalNature Communications·TypeExperimental study·DateAug 24, 2021

Unlocking the secrets to sorghum’s adaptability

A reservoir of genes allowing sorghum to adapt to environmental stresses has been identified from 13 contrasting genomes. This genetic diversity is valuable for breeders, enabling them to improve crop yield and resilience. The analysis, led by the University of Queensland, provides unprecedented insights into the genome's dynamic nature.

SourceUniversity of Queensland·JournalNature Plants·TypeData/statistical analysis·DateAug 24, 2021

Thinking of plastic surgery? Zoom in on this first

A study published in Marketing Letters found that analytical thinkers are more likely to undergo plastic surgery, while holistic thinkers are more forgiving of imperfections. The researchers suggest taking a holistic approach to consider the long-term impact of procedures on one's life.

SourceSt. Edward's University·JournalMarketing Letters·TypeExperimental study·DateAug 24, 2021

High-quality crystals reveal new physics of topological insulators

Researchers at the University of Texas at Dallas have produced large, high-quality bismuth iodide crystals that demonstrate the existence of weak topological insulators. The crystals undergo a phase transition into a novel structure at room temperature, altering their electronic properties.

SourceUniversity of Texas at Dallas·JournalPhysical Review X·TypeExperimental study·DateAug 24, 2021
Fluke 87V Industrial Digital Multimeter

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

Diabetes among US children, teens

The prevalence of type 1 and type 2 diabetes among US children and teens rose significantly from 2001 to 2017. Researchers estimated an increase in diabetes cases across all age groups during this period, with the largest increases seen among younger populations.

SourceJAMA Network·JournalJAMA·DateAug 24, 2021

Lupin and Arsenic: Research on soil decontamination by an exceptional plant

A study found that white lupin plants can rejuvenate arsenic-contaminated soils by releasing compounds that bind metals, potentially offering a sustainable remediation method. The research used advanced chemical profiling to identify the root chemicals involved in this process.

SourceUniversity of Montreal·JournalPlant Cell & Environment·TypeExperimental study·DateAug 24, 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.

Seeing the inner workings of centrioles in early land plants

Researchers study mosses and find unique centriole assembly process, with a 'unique symmetry break' that allows for regulation. This discovery provides insights into centriole development across the tree of life and has implications for our understanding of evolution.

SourceInstituto Gulbenkian de Ciencia·JournalCurrent Biology·TypeExperimental study·DateAug 24, 2021

Developing clinically relevant human-scale living organs

A team of researchers has created a bioink that can reduce toxicity and improve cell survival, enabling the fabrication of clinically relevant human-scale organs. The development paves the way for regenerative medicine applications.

SourcePohang University of Science & Technology (POSTECH)·JournalAdvanced Functional Materials·DateAug 24, 2021

Raising the steaks: First 3D-bioprinted structured Wagyu beef-like meat unveiled

Researchers at Osaka University have successfully created a 3D-bioprinted structured Wagyu beef-like meat alternative using stem cells isolated from Wagyu cows. The new technology mimics the complex texture of real Wagyu beef, allowing for customizable fat and muscle components in cultured meat.

SourceOsaka University·JournalNature Communications·TypeExperimental study·DateAug 24, 2021
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.

Evolutionary ‘arms race’ may help keep cell division honest

Research from the University of Pennsylvania suggests that certain proteins have evolved to reduce biased chromosome inheritance, potentially avoiding mistakes and birth defects. The study found a parallel pathway suppressing selfish chromosomes, indicating an evolutionary arms race.

SourceUniversity of Pennsylvania·JournalCell·TypeMeta-analysis·DateAug 24, 2021

Silicon/2D-material photodetectors: from near-infrared to mid-infrared

Recent progresses of silicon/2DM PDs are reviewed for their potential applications in various functional photonic integrated circuits. The article discusses the operation mechanisms, device configurations, and application scenarios of these photodetectors.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateAug 24, 2021

Using your smartwatch to reduce stress

Researchers at the University of Houston have developed a smartwatch technology that can monitor and help lower stress levels by detecting changes in skin conductance response. The device sends reminders to listen to relaxing music when stress is detected, forming a closed-loop system.

SourceUniversity of Houston·JournalIEEE Access·TypeComputational simulation/modeling·DateAug 24, 2021

NSF taps Danforth Center to lead new institute

The New Roots for Restoration Biology Integration Institute aims to integrate plant traits, communities, and the soil ecosphere to advance restoration of natural and agricultural ecosystems. The project seeks to understand how root traits influence plant interactions with each other and with the soil.

SourceDonald Danforth Plant Science Center·DateAug 24, 2021
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.

NIH-funded study finds overall rate of drug use among 10-14 year-olds remained stable during the 2020 COVID-19 pandemic

A recent NIH-funded study found that the overall rate of drug use among 10-14 year-olds remained stable during the 2020 COVID-19 pandemic, with adolescents experiencing stress and hardship being most likely to use substances. The study also detected shifts in substance types, with alcohol use declining and nicotine use increasing.

SourceNIH/National Institute on Drug Abuse·JournalJournal of Adolescent Health·TypeData/statistical analysis·DateAug 24, 2021

Racial differences in recovery following sports-related concussion identified in young black and white athletes

A study found that young Black athletes recovered faster from sports-related concussions, returning to school sooner and experiencing less impact on daily activities. In contrast, White athletes took longer to recover, with changes in sleep patterns and increased risk of post-concussion depression.

SourceJournal of Neurosurgery Publishing Group·JournalJournal of Neurosurgery Pediatrics·TypeData/statistical analysis·DateAug 24, 2021

Stress from rising population numbers may cause a decline in human fertility

A review article published in the Endocrine Society's journal Endocrinology predicts a peak in population numbers in 2064 followed by a 50% drop by the end of the century. Stress from less quality social interactions is believed to suppress sperm count, ovulation, and sexual activity, contributing to declining reproduction rates.

SourceThe Endocrine Society·JournalEndocrinology·DateAug 24, 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.

New study provides structural insights into how cholesterol in the brain regulates ion channels and alters their function; findings could facilitate the development of therapeutics for neurological diseases

Researchers identified physical binding sites for cholesterol in GIRK channels, which play a role in neurodegenerative diseases. The study provides structural insights into how cholesterol alters channel function, paving the way for drug development.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalCell Reports·TypeImaging analysis·DateAug 24, 2021

Teaching an old dog new tricks: An existing drug opens new possibilities for treating child leukemia

A study from Linköping University found that the tumour-inhibiting gene TET2 is silenced in most cases of acute lymphoblastic leukemia (ALL) in children. The gene can be reactivated by treatment with an existing drug, 5-azacytidine, suggesting a targeted therapy for ALL in children.

SourceLinköping University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateAug 24, 2021

The effect of metabolic syndrome traits on atherosclerosis can be reduced by increasing cardiorespiratory fitness already in childhood

A new study found that increasing childhood cardiorespiratory fitness can reduce the adverse effects of metabolic syndrome traits on atherosclerosis. The researchers discovered a two-way connection between arterial health and fat mass, with healthy arteries associated with higher fat mass in children.

SourceUniversity of Eastern Finland·JournalMedicine & Science in Sports & Exercise·TypeObservational study·DateAug 24, 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.

Human, swine waste pose dual threats to water quality after flooding

A study by North Carolina State University found that surface waters in eastern North Carolina were more likely to face dual contamination from human and swine waste after Hurricane Florence. The presence of Arcobacter, a pathogen not associated with human or swine fecal markers, was also discovered.

SourceNorth Carolina State University·TypeObservational study·DateAug 24, 2021

Mount Sinai study identifies significant inequalities among low-risk births, finds higher rates of unexpected complications for Black and Hispanic infants

A Mount Sinai study found significant inequalities among low-risk births, with Black and Hispanic infants experiencing higher rates of unexpected complications. Hospital quality was identified as a key contributor to these disparities, with lower-quality hospitals serving more Black and Hispanic women.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalPEDIATRICS·DateAug 24, 2021
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.

With short course of TB prevention for people living with HIV, completion soars

A new TB prevention regimen for HIV-positive individuals has shown promising results, with 90.4% completing the three-month course compared to 50.5% of those on a six-month daily treatment. The study suggests that this shorter approach is as safe and effective as the standard treatment.

SourceOhio State University·JournalAnnals of Internal Medicine·TypeRandomized controlled/clinical trial·DateAug 24, 2021

How firefighters deal with heat stress and fatigue

A new study asked over 470 firefighters about their recovery methods in extreme heat, finding that simple strategies like finding shade and drinking water are often used. The research suggests potential for better cooling and recovery protocols to improve firefighter safety and performance.

SourceUniversity of Technology Sydney·JournalApplied Ergonomics·TypeSurvey·DateAug 24, 2021

Two studies seek to go beyond the GIST of intestinal tract cancer

Gastrointestinal stroma tumors (GIST) are rare cancers that can be problematic to detect and treat. Researchers have identified the mutational drivers for GIST in the stomach and found a potential drug therapy, temozolomide, which showed promising results in treating patients with specific mutations.

SourceUniversity of California - San Diego·JournalClinical Cancer Research·DateAug 24, 2021

New research in rural Costa Rica suggests community-based monitoring can improve water management

New research published in PNAS suggests that community-based monitoring can improve water management in rural Costa Rica by reducing groundwater extraction and improving water quality. The program, which used a smartphone application and WhatsApp, showed modest but significant effects after one year.

SourceUniversity of Maryland Baltimore County·JournalProceedings of the National Academy of Sciences·TypeRandomized controlled/clinical trial·DateAug 24, 2021
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.

Record-breaking lithium-metal cell

Researchers at Karlsruhe Institute of Technology have developed a record-breaking lithium-metal battery with an energy density of 560 Wh/kg, retaining 88% capacity after 1000 cycles. The battery features a nickel-rich cathode and a dual-anion ionic liquid electrolyte, which significantly improves stability.

SourceKarlsruher Institut für Technologie (KIT)·JournalJoule·TypeExperimental study·DateAug 24, 2021

Turning hazelnut shells into potential renewable energy source

Researchers found that wood vinegar and tar fraction in bio-oil produced from hazelnut shells pyrolysis at 400 C to 1,000 C contain high concentrations of phenolic substances, which contribute to their antioxidant activity. The study suggests using these fractions as a potential renewable energy source.

SourceAmerican Institute of Physics·JournalJournal of Renewable and Sustainable Energy·DateAug 24, 2021

USPSTF lowers recommended screening age for type 2 diabetes

The USPSTF has lowered the recommended starting age of screening for type 2 diabetes from 40 to 35. Screening is now recommended for adults with prediabetes or type 2 diabetes, particularly those aged 35-70 who are overweight or obese. This recommendation aims to detect and treat these conditions earlier.

SourceJAMA Network·JournalJAMA·DateAug 24, 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.