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Science News Archive 2021 - Page 86


Page 86 of 510

Chemists develop a fundamentally new mode of adsorption

Researchers developed a new mechanism of adsorption called mechanisorption, which can store significant amounts of energy by recruiting molecules onto surfaces at high concentrations. This breakthrough has implications for energy storage, controlled release, and environmental remediation.

SourceNorthwestern University·JournalScience·TypeExperimental study·DateOct 21, 2021
Apple iPhone 17 Pro

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

Bright prospects for OCT at 30

Optical coherence tomography (OCT) has significant growth potential across various medical applications, including cardiology and dermatology. Miniaturized OCT systems are expected to revolutionize healthcare with compact, mobile, and cost-effective devices.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Biomedical Optics·TypeSystematic review·DateOct 21, 2021

Under arrest: Using nanofibers to stop brain tumor cells from spreading

A team of researchers from Japan has developed a platform using nanofibers to capture and control the migration of brain tumor cells, including glioblastoma multiforme. The study found that varying fiber densities can slow or speed up cell movement, leading to the creation of 'cell traps' that can restrict tumor cell growth.

SourceUniversity of Fukui·JournalACS Applied Bio Materials·TypeExperimental study·DateOct 21, 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.

Scientists look beyond the individual brain to study the collective mind

Researchers suggest that cognition is a group activity, not an individual one. Studies show brain regions activated in people communicating or cooperating on tasks, highlighting the need to look beyond individual brains.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalFrontiers in Systems Neuroscience·TypeCommentary/editorial·DateOct 21, 2021

Research identifies new family of marine ‘megaphages’

Researchers identified a new family of marine megaphages with genomes over 650 kb in length, which could impact biogeochemical cycling. These 'megaphages', found in the English Channel, are distantly related to human gut phages and represent a new family in the marine environment.

SourceUniversity of Leicester·JournalISME Communications·TypeObservational study·DateOct 21, 2021

Einstein-developed treatment strategy may lead to HIV cure

Scientists at Einstein College of Medicine have successfully suppressed HIV infections in mice using a novel treatment strategy that boosts the immune system's CD8+ T cells. The therapy, known as synTac, selectively targets HIV-infected T cells, eliminating them from the body and offering a potential path to a functional cure for HIV.

SourceAlbert Einstein College of Medicine·JournalJournal of Clinical Investigation·DateOct 21, 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.

Ivory poaching leads to rapid evolution of tuskless African elephants

Research reveals that intense ivory poaching during the Mozambican Civil War led to a rapid increase in tusklessness among female African elephants. The study found a sex-linked genetic origin for this trait, with whole-genome analysis identifying key candidate genes involved in mammalian tooth development.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateOct 21, 2021

How pearls achieve nanoscale precision

A University of Michigan-led team discovered how mollusks build pearls with precise symmetry and layers, governed by the phenomenon of 1/f noise. The study found that pearls lack true long-range order but exhibit medium-range order, maintaining consistency and durability.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateOct 21, 2021

New photonic chip for isolating light may be key to miniaturizing quantum devices

Scientists have designed a compact photonic circuit that uses sound waves to control light, outperforming previous alternatives and optimizing compatibility with atom-based sensors. The new device is simple in design, uses common optical materials, and can be adapted for different wavelengths of light.

SourceUniversity of Illinois Grainger College of Engineering·JournalNature Photonics·DateOct 21, 2021

COVID-19 vaccination strongly protected 12- to 18-year-olds during Delta

Two studies confirm that COVID-19 vaccination significantly reduces both COVID-19 hospitalization rates and severe illnesses among adolescents aged 12-18. A CDC-supported study found two doses of the Pfizer-BioNTech vaccine to be 93% effective in preventing COVID-19 hospitalizations.

SourceBoston Children's Hospital·JournalNew England Journal of Medicine·DateOct 21, 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.

Blood flow simulations may improve the monitoring of atrial fibrillation

Researchers found that blood flow simulation analysis can identify device-related thrombosis risks in left atrial appendage occluders. Personalized simulations before and after operation may improve patient outcomes.

SourceUniversitat Pompeu Fabra - Barcelona·JournalRevista Española de Cardiología·TypeComputational simulation/modeling·DateOct 21, 2021

Common antidepressant should no longer be used to treat people with dementia, study says

A new study has shown that a commonly prescribed antidepressant for agitation in people with dementia is no more effective than a placebo and may even increase mortality. The research found no improvement in agitation symptoms among those taking mirtazapine, a drug previously thought to be beneficial.

SourceUniversity of Plymouth·JournalThe Lancet·TypeRandomized controlled/clinical trial·DateOct 21, 2021

Mandates likely work to increase vaccine uptake

Research from University of Pennsylvania team shows that vaccine mandates have positive effects on vaccination intentions, particularly for those who oppose forced behavior. Mandates strengthen vaccination intentions, regardless of racial or ethnic group, and for individuals with a disposition towards psychological reactance.

SourceUniversity of Pennsylvania·JournalScientific Reports·DateOct 21, 2021
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Fighting viruses with interchangeable defense genes

Researchers discovered that bacteria exchange mobile genetic elements to defend against viruses, enabling rapid evolution of innate immunity and development of resistance. This finding has significant implications for designing phage-based therapies against bacterial infections.

SourceUniversity of Vienna·JournalScience·DateOct 21, 2021

Discovery of new tiny fish, lizard species reported in PeerJ

Researchers uncover two new species, a small lizard (Sciroseps pawhuskai) and a fish (Anomoeodus caddoi), from the Lower Cretaceous Holly Creek Formation in southwest Arkansas. The discovery provides valuable insights into the diversity of animals living during the Early Cretaceous Period.

SourceUniversity of Wisconsin Oshkosh·JournalPeerJ·DateOct 21, 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.

Climate tipping might be predicted using algebraic topology

Researchers from the TiPES project use algebraic topology to analyze climate models, revealing abrupt transitions and potential tipping points. This method may help predict when the climate system will shift due to global warming.

SourceUniversity of Copenhagen - Faculty of Science·JournalChaos An Interdisciplinary Journal of Nonlinear Science·TypeComputational simulation/modeling·DateOct 21, 2021

Early dinosaurs were sociable

Researchers found fossilized embryos of the same species inside eggs, indicating a herd-like behavior. The site showed a well-organized herd structure, with dinosaur babies' fossils near the nests and juveniles grouped together.

SourceEuropean Synchrotron Radiation Facility·JournalScientific Reports·TypeImaging analysis·DateOct 21, 2021

New study finds no risk of pregnancy loss from COVID-19 vaccination

A new study published in The New England Journal of Medicine has found no correlation between COVID-19 vaccinations and risk of first-trimester miscarriages. Vaccination during pregnancy is safe and provides protection to the newborn infant against COVID-19 infection.

SourceUniversity of Ottawa·JournalNew England Journal of Medicine·TypeCase study·DateOct 21, 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.

International team of researchers discover first dinosaur era crab fully preserved in amber

A team of scientists has discovered the oldest modern-looking crab, Cretapsara athanata, preserved in 100-million-year-old amber. The fossil is remarkably complete, including delicate tissues and well-developed gills, revealing an aquatic to semi-aquatic animal that defies explanation for its preservation in tree resin.

SourceHarvard University, Department of Organismic and Evolutionary Biology·JournalScience Advances·DateOct 20, 2021

Unique dinosaur-era fossil bridges a gap in the evolution of crabs

A newly discovered ancient crab fossil, Cretapsara athanata, has shed new light on the evolution of crabs. The 100 million-year-old fossil, found in amber, provides evidence that crabs transitioned to land around 100 million years ago, bridging a previously unknown gap in their evolutionary history.

SourceSmithsonian Tropical Research Institute·JournalScience Advances·DateOct 20, 2021

Changing ocean currents are driving extreme winter weather

New research from the University of Arizona suggests that a slowdown in the Atlantic Meridional Overturning Circulation (AMOC) will intensify extreme cold weather in the US. The study found that without the AMOC, extremely cold winter weather would become more frequent and severe.

SourceUniversity of Arizona·JournalCommunications Earth & Environment·TypeComputational simulation/modeling·DateOct 20, 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.

How retirement impacts social support and wellbeing

A new study found that most people maintain their pre-retirement level of social support after retirement, with women and those with high social support experiencing an improvement in mental wellbeing. The research also shows an increase in life satisfaction for couples where either the man or woman retired.

SourceUniversity of Technology Sydney·JournalThe European Journal of Health Economics·TypeSurvey·DateOct 20, 2021

Why Twitter should share revenues with soccer players

Researchers analyze competition among high-profile Twitter users and suggest a revenue-sharing program to increase user engagement. The study found that sharing revenues with all tweeting players, not just top performers, is more effective and less expensive for the platform.

SourceBocconi University·JournalMarketing Science·DateOct 20, 2021

Preventing postsurgical adhesions using hydrogel barriers

Scientists develop injectable hydrogels to effectively prevent post-surgical adhesions, reducing complications and hospital costs. The hydrogel barriers demonstrate superior mechanical properties and effective prevention of cell adherence.

SourceTerasaki Institute for Biomedical Innovation·JournalNano-Micro Letters·TypeExperimental study·DateOct 20, 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.

A breakdown in communication -- mitochondria of diabetic patients can’t keep time

A team of international scientists has shown that skeletal muscle cells from people with type 2 diabetes have a different circadian rhythm, leading to altered mitochondrial metabolism. The study suggests that considering cellular rhythms when prescribing treatments for type 2 diabetes could optimize their effectiveness.

SourceUniversity of Copenhagen - The Faculty of Health and Medical Sciences·JournalScience Advances·TypeExperimental study·DateOct 20, 2021

Reducing plastic pollution by adding RNA-inspired ‘breaking points’

Researchers developed a biodegradable polymer called polylactide (PLA) with RNA-inspired breaking points, which can break down faster in seawater. The degradation rate of the polymer can be tailored depending on the amount of breaking points, offering a potential solution to marine pollution.

SourceAmerican Chemical Society·JournalJournal of the American Chemical Society·DateOct 20, 2021

Exploring Antarctic ocean circulation from penguin guano

A Chinese research team reconstructed past 6,000-year history of Modified Circumpolar Deep Water (MCDW) intrusion into the Ross Sea using ornithogenic sediments. The study found two periods of enhanced MCDW intrusion linked to changes in sea ice and ecological patterns.

SourceUniversity of Science and Technology of China·JournalGeophysical Research Letters·DateOct 20, 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.

Lifetime excess weight linked to subclinical heart injury

A study of 9,739 adults found that those with stable overweight and obesity had elevated cardiac troponin I levels, a marker of subclinical heart injury. Long-standing obesity is associated with injurious effects on cardiac health before symptoms occur.

SourceWiley·JournalJournal of Internal Medicine·DateOct 20, 2021

BBQ lighter, combined with microneedles, sparks breakthrough in COVID-19 vaccine delivery

Researchers at Georgia Tech and Emory University have developed an innovative method for delivering vaccines, including those for COVID-19, using a handheld electroporator. The device is powered by a BBQ lighter and uses microneedle technology to reduce the complexity and cost of vaccine delivery.

SourceGeorgia Institute of Technology·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 20, 2021

Machine learning can be fair and accurate

A recent study published in Nature Machine Intelligence challenges the long-held assumption that accuracy and fairness are mutually exclusive in machine learning. Researchers found that optimizing models for accuracy does not necessarily compromise fairness, particularly when adjustments are made to data, labels, and scoring systems.

SourceCarnegie Mellon University·JournalNature Machine Intelligence·DateOct 20, 2021
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.

No silver bullet

Researchers challenge long-held notion that humans are bad for ecosystems, finding no correlation between remoteness and coral reef resilience. Instead, areas with higher human influence may recover faster from disturbances due to shifts in coral population dynamics.

SourceUniversity of California - Santa Barbara·JournalGlobal Change Biology·DateOct 20, 2021

Urban wastes used as fertilizers contain higher PFAS than livestock manure

Researchers found that urban waste products applied to agricultural fields in France contained higher levels of per- and polyfluoroalkyl substances (PFAS) than livestock manures. The study also detected a shift towards more persistent PFAS compounds over time, raising toxicity concerns.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateOct 20, 2021

Gwangju Institute of Science and Technology scientists shine light to measure blood flow in the brain in real time

Researchers at GIST create an optical technique called optical speckle image velocimetry that can image dynamic changes in cerebral blood flow, allowing for the diagnosis of brain health. The technique provides high-time resolution and measures both speed and direction of blood flow.

SourceGIST (Gwangju Institute of Science and Technology)·JournalOptica·TypeExperimental study·DateOct 20, 2021
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.

Sending out an SOS

Scientists linked SOS data to grain prices in five African countries, increasing predictive power by up to 25% in some cases. The study's findings enable earlier forecasts of potential famine, with implications for humanitarian aid.

SourceUniversity of California - Santa Barbara·JournalEnvironmental Research Letters·DateOct 20, 2021

Epilepsy research reveals unknown trigger for seizures

Researchers found that somatostatin interneurons can cause seizures when they go haywire, disrupting the brain's balance. The study identified a rare epilepsy syndrome and developed mouse models to understand the neurological dysfunction, paving the way for new treatments.

SourceUniversity of Virginia Health System·JournalJNeurosci·DateOct 20, 2021

How diet affects tumors

A new study from MIT reveals that calorie-restricted diets slow tumor growth in mice by reducing fatty acid availability, while ketogenic diets have limited effect. The findings offer insight into how dietary interventions might be combined with existing or emerging drugs to help patients with cancer.

SourceMassachusetts Institute of Technology·JournalNature·DateOct 20, 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.

Facet controllable synthesis of two-dimensional rare earth oxides

Scientists at Wuhan University have developed a novel method to synthesize 2D rare earth oxides (REOs) with specific facets. The technique uses a facet controlling assistor to control the growth mode and direction of crystals, leading to anisotropic growth of non-layered REOs materials.

SourceScience China Press·JournalNational Science Review·DateOct 20, 2021

Scientists show plasma technology can safely clean disposable PPE for reuse

A new study from the University of Southampton demonstrates a safe method to clean and reuse facemask respirators using advanced low-temperature plasma technology. This technique can remove 99.99% of coronavirus while maintaining filter performance, reducing plastic waste by approximately 70%.

SourceUniversity of Southampton·JournalAIP Advances·TypeExperimental study·DateOct 20, 2021