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Science News Archive 2020 - Page 281


Page 281 of 512

SARS-CoV-2: New insights on antibody testing and RNA testing

Two studies provide new insights into antibody testing and RNA testing for SARS-CoV-2. Researchers found that antibody tests are highly accurate, but repeat testing is necessary to confirm infection status. The gold standard rt-PCR test can detect current infection, but false positives can occur.

SourceAmerican Society for Microbiology·JournalJournal of Clinical Microbiology·DateJun 22, 2020
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

New technique may enable all-optical data-center networks

A new technique that synchronises the clocks of computers in under a billionth of a second can eliminate one of the hurdles for the deployment of all-optical networks, potentially leading to more efficient data centers. This method, called clock phase caching, can reduce the time to recover the clock and increase performance of optical...

SourceUniversity College London·JournalNature Electronics·DateJun 22, 2020

New class of precision medicine strips cancer of its DNA defenses

A new class of precision medicine targeting cancer's ability to repair its DNA has shown promising results, with half of patients experiencing tumor growth halt. The drug works by stopping cancers from repairing DNA damage and is particularly effective when combined with chemotherapy.

SourceInstitute of Cancer Research·JournalJournal of Clinical Oncology·DateJun 22, 2020

Fluorocarbon bonds are no match for light-powered nanocatalyst

Researchers have created a catalyst that can break carbon-fluorine bonds via hydrodefluorination, a process known as C-F bond breaking. The innovation has potential applications in remediating fluorinated compounds and could lead to cleaner, more efficient chemical processes.

SourceRice University·JournalNature Catalysis·DateJun 22, 2020

Like oil and water

A new 3D-printed membrane designed by Pitt ChemE professor Lei Li has the potential to efficiently separate oil and water. The membrane's unique surface topography and pore size will enable effective separation of oil-water emulsions, converting oily wastewater into purified water.

SourceUniversity of Pittsburgh·DateJun 22, 2020
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.

When planting trees threatens the forest

A new study finds that poorly designed tree-planting campaigns could lead to more biodiversity loss and little climate change benefit. Strong subsidy restrictions are crucial to avoid these negative impacts.

SourceStanford University·JournalNature Sustainability·DateJun 22, 2020

Seasonal sea ice changes hold clues to controlling CO2 levels, ancient ice shows

A new study found that seasonal growth and destruction of sea ice in the Southern Ocean enhances marine life present in the sea around Antarctica, sequestering carbon from the atmosphere. The researchers analyzed data from a period when atmospheric carbon dioxide levels plateaued at 240 ppm 14,600 years ago.

SourceUniversity of New South Wales·JournalNature Geoscience·DateJun 22, 2020
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.

Evidence supports 'hot start' scenario and early ocean formation on Pluto

A new study published in Nature Geoscience suggests that Pluto and other large Kuiper belt objects began with liquid oceans that have been slowly freezing over time. The 'hot start' scenario is supported by observations, which indicate expansion features on Pluto's surface rather than compression features.

SourceUniversity of California - Santa Cruz·JournalNature Geoscience·DateJun 22, 2020
Apple iPhone 17 Pro

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

Ocean circulation, nutrient supply, and global warming

A theoretical model suggests that slowing Atlantic Meridional Overturning Circulation leads to reduced northward nutrient transport, suppressing Subarctic Atlantic Ocean biological productivity. This finding may improve marine biogeochemistry projections for the next century.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

This enigmatic protein sculpts DNA to repair harmful damage

Researchers have discovered how XPG binds to and reshapes damaged DNA, illuminating its role in maintaining genetic stability. The protein's unique 'sculpting' activity allows it to bend DNA, recruiting proteins to fix damage, and may help prevent cancer by supporting homologous recombination.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

Direct reprogramming: Defying the contemporary limitations in cardiac regeneration

Researchers explore direct reprogramming as an alternative to cell therapy-based strategies for cardiac regeneration after myocardial infarction. They identify microRNAs and biomaterials like electrospun scaffolds and nanoparticles as potential non-viral vectors for safe delivery of genetic reprogramming.

SourceBentham Science Publishers·JournalCurrent Pharmaceutical Design·DateJun 22, 2020

Bioactive factors-imprinted scaffold vehicles for promoting bone healing

Researchers have developed bioactive factors-imprinted scaffold vehicles to promote bone healing by improving the stability and half-life of exogenous biofactors. The vehicles were used in various forms, including rigid bone graft substitutes, soft sponge-like scaffolds, and injectable vehicles, to enhance bone repair.

SourceCompuscript Ltd·JournalBIO Integration·DateJun 22, 2020
Celestron NexStar 8SE Computerized Telescope

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

Research in land plants shows nanoplastics accumulating in tissues

Research finds nanoplastics can accumulate in plants, depending on surface charge, impacting ecological effects and agricultural sustainability. Plant growth is reduced, with positively charged particles causing more harm than negatively charged ones, according to a new study.

SourceUniversity of Massachusetts Amherst·JournalNature Nanotechnology·DateJun 22, 2020

Origins of lead glassmaking in Spain

The study reveals that medieval glass production in Spain predates Islamic influence by more than 50 years. Glass fragments from the Rabad of Šaqunda date back to the 8th century and show evidence of local lead production using nearby ore deposits.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

Bread mould avoids infection by mutating its own DNA

Scientists discovered that Neurospora crassa, a type of bread mould, actively mutates its own DNA to fight virus-like infections. The fungus uses a process called Repeat-Induced Point mutation (RIP) to rapidly degrade transposable elements, but this comes at a cost of considerable collateral damage.

SourceUniversity of Bath·JournalGenome Biology·DateJun 22, 2020
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.

Otago research reveals how mating influences females' life history and ageing

A new University of Otago study found that mating with sterile males early in life increases female growth but reduces lifespan. Mating with fertile males later in life has the opposite effect, increasing reproductive output. The findings suggest long-term consequences of social interactions between males and females.

SourceUniversity of Otago·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

Super-resolution microscopy reveals a twist inside of cells

A new super-resolution microscope reveals unprecedented detail of the centriole's twist, a nanoscale structure important for cell division. The technology could be used to study other cellular structures like mitochondria or viruses.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Methods·DateJun 22, 2020

Assessment of COVID-19 community containment strategies in China

A case series examines community containment measures in China to restrict COVID-19 spread, highlighting mixed results with some areas achieving success while others struggled. The study reveals the importance of coordinated public health efforts and rapid response times in controlling outbreaks.

SourceJAMA Network·JournalJAMA Network Open·DateJun 22, 2020
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.

The injury rate of dominant leg of soccer players is identical with the non-dominant one

A recent study published in Sports Medicine - Open reveals that professional soccer players experience asymptomatic cartilage and meniscus damages in their knee joints, regardless of age or career duration. The dominant leg's condition is identical to the non-dominant one, with certain tissue changes more common in experienced athletes.

SourceSechenov University·JournalSports Medicine - Open·DateJun 22, 2020

Focused ultrasound shows promise against deadliest brain tumor

Researchers at UVA Health System are pioneering a new technique using focused ultrasound to destroy cancer cells without generating heat. The approach, tested on cell samples in lab dishes, shows promise against glioblastoma and other difficult-to-treat cancers.

SourceUniversity of Virginia Health System·JournalJournal of Neuro-Oncology·DateJun 22, 2020

Protecting natural forest in oil palm plantations crucial for conservation

A new study on palm oil agriculture in Borneo found that protected forest areas within oil palm plantations store up to 20% more carbon than those with no protection. These areas also boost rainforest biodiversity by conserving endangered species such as hornbill birds and dipterocarp trees.

SourceUniversity of York·JournalBiological Conservation·DateJun 22, 2020
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.

Are protected areas effective at maintaining large carnivore populations?

A recent study found that protected areas in Finland do not harbor higher densities of large carnivores than unprotected lands, with wolverine populations declining within some areas. However, the study also suggests that protected areas can support seasonal habitats and prey for these mobile species.

SourceUniversity of Helsinki·JournalNature Communications·DateJun 22, 2020

Rethinking visual awareness

Research on brain-damaged patients with distorted perception reveals neural processing can occur despite lack of awareness. The study's findings have significant implications for theories of human visual awareness and suggest a reevaluation of the relationship between complex cognitive processing and awareness.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

Click... Resistant bacteria caught in the act!

Scientists have caught BAM guard towers red-handed, revealing their role in bacterial resistance to antibiotics. This discovery provides unprecedented insight into the mechanism of bacteria, offering a new angle for targeting BAM during antibiotic treatment.

SourceUniversité catholique de Louvain·JournalNature Chemical Biology·DateJun 22, 2020
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.

Enhanced secondary haze by emission reduction during COVID-19 lockdown in China

A study published in National Science Review found that COVID-19 lockdowns in China led to a sharp reduction in transportation emissions, but this was offset by an increase in secondary particle formation due to enhanced atmospheric oxidizing capacity. The study suggests that coordinated control of various primary emissions is necessar...

SourceScience China Press·JournalNational Science Review·DateJun 22, 2020

A Metal-like Quantum Gas: A pathbreaking platform for quantum simulation

Researchers have created a metal-like quantum gas by exciting electrons in ultracold rubidium atoms, allowing for ultrafast simulation of many-body electron dynamics. The exotic phase has the potential to enhance our understanding of physical properties like superconductivity and magnetism.

SourceNational Institutes of Natural Sciences·JournalPhysical Review Letters·DateJun 22, 2020

Researchers forecast COVID-19 pandemic could delay clean energy transition

The COVID-19 pandemic may slow down the transition to cleaner technologies due to reduced investments in clean energy innovation. This could lead to increased greenhouse gas emissions and air pollution. However, governments can respond by incorporating green components into stimulus packages and investing in renewable energy.

SourceCell Press·JournalJoule·DateJun 22, 2020

Eruption of Alaska's Okmok volcano linked to period of extreme cold in ancient Rome

A team of scientists and historians found evidence connecting an ancient period of extreme cold in Rome with a massive eruption of Alaska's Okmok volcano in 43 BCE. The study used ice core samples to link the eruption to the caldera-forming event, which had significant impacts on climate and history.

SourceDesert Research Institute·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020
Fluke 87V Industrial Digital Multimeter

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

World's fastest Bose-Einstein condensate

A team of scientists at Aalto University has successfully created a Bose-Einstein condensate that behaves as if it were one particle, but makes the elusive state of matter in just 100 femtoseconds. The breakthrough could lead to new areas of fundamental research and applications with these condensates.

SourceAalto University·JournalNature Communications·DateJun 22, 2020

Mysterious climate change

A recent study found that seasonal sea ice growth and destruction increased biological productivity in the Southern Ocean, extracting carbon from the atmosphere and storing it in the deep ocean. This process helps explain a long-standing question about a 1,900-year pause in CO2 growth during the Antarctic Cold Reversal.

SourceUniversity of Bonn·JournalNature Geoscience·DateJun 22, 2020

Predicting mortality with nonbiological factors

Researchers identified six domains of nonbiological factors that contribute to mortality risk, including health behaviors, psychological characteristics, and socioeconomic conditions. The study highlights the importance of behavioral, psychological, and social factors in mortality risk assessments.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

Solar-powered degradation of micropollutants

Researchers discovered that gold nanorods can catalyze the degradation of organic micropollutants like bisphenol A and perfluorooctanoic acid. When exposed to sunlight, these nanorods produce free radicals that break down pollutants, making them a promising low-cost water purification method.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020

Volcanic eruption's effects on Roman Republic

A massive volcanic eruption in 43 BCE, linked to the Okmok volcano in Alaska, may have contributed to the unusual climate events that coincided with the fall of the Roman Republic. The eruption produced two years of prolonged cooling and increased precipitation, likely exacerbating crop failures, famine, and disease.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020
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.

COVID-19 lockdown reveals human impact on wildlife

A global initiative is investigating how animals are responding to reduced levels of human activity during the Covid-19 pandemic, revealing insights into human-wildlife interactions. The study aims to improve understanding of space sharing on a crowded planet with benefits for both wildlife and humans.

SourceMax-Planck-Gesellschaft·JournalNature Ecology & Evolution·DateJun 22, 2020

Preventing lithium loss for high-capacity lithium-ion batteries

A novel pretreatment strategy has been developed to resolve the issue of silicon anode materials in lithium-ion batteries. The technology enables simple and safe processing for large-scale production, resulting in high initial battery efficiency and increased energy density.

SourceNational Research Council of Science & Technology·JournalAngewandte Chemie International Edition·DateJun 22, 2020

Get your hands dirty for health

The #HealthyRecovery initiative calls on G20 Presidents and Prime Ministers to support projects enabling ecological restoration for improved air quality and soil health. Experts warn that global environmental and climate crises compromise human health and long-term survival.

SourceFlinders University·JournalEcoHealth·DateJun 22, 2020

How long-tailed tits avoid incest

A study reveals that long-tailed tits employ learned vocal cues to distinguish between close kin and non-kin, thereby avoiding incest. This unique strategy helps the birds maintain genetic diversity and is crucial for their reproductive success.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020
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.

Simple interventions can help people spot false headlines

A study by researchers from Princeton University found that simple digital-media literacy outreach can help people distinguish between mainstream and false news headlines. The intervention improved accuracy by 26.5% in the US and 17.5% in India, with effects lasting several weeks.

SourcePrinceton School of Public and International Affairs·JournalProceedings of the National Academy of Sciences·DateJun 22, 2020
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.