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Science News Archive December 2020 - Page 35


Page 35 of 39

A new era is dawning in diagnosing sexually transmitted infections in men

A study published in PLOS ONE introduces a new flow cytometry method for diagnosing male urethritis, which is faster and more precise than existing methods. The study found that gonorrhoea causes the highest inflammatory reaction and bacterial count in urine, highlighting the potential of this technique for rapid screening.

SourceEstonian Research Council·JournalPLOS ONE·DateDec 3, 2020

Potential means of improving learning and memory in people with mental illnesses

A recent study has identified a genetic variation that influences cognition and IQ in people with schizophrenia, suggesting the possibility of developing new therapies to target learning and memory problems. Higher levels of a specific brain chemical were found to be associated with better visual and working memory.

SourceJohns Hopkins Medicine·JournalAmerican Journal of Psychiatry·DateDec 3, 2020
Apple iPhone 17 Pro

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

Pilot whale study reveals copycat calls to outsmart predators

Researchers found southern Australian long-finned pilot whales can mimic killer whale calls and engage in 'duetting' with other whales, revealing a complex acoustic communication system. The study's findings raise questions about the extent of home ranges for these whales.

SourceCurtin University·JournalScientific Reports·DateDec 3, 2020

How hot is too hot for life deep below the ocean floor?

At a depth of 1,180 meters, temperatures of up to 120 degrees Celsius were reached, but microbial populations collapsed at around 45 degrees. Endospores, dormant cells of certain bacteria, increased rapidly and persisted in hot zones.

SourceMARUM - Center for Marine Environmental Sciences, University of Bremen·JournalScience·DateDec 3, 2020

Coasts drown as coral reefs collapse under warming and acidification

Researchers found that coral reef ecosystems can no longer retain deposits of calcium carbonate due to ocean warming and acidification, leading to accelerated erosion. By the end of the century, coastal protection will be lost, impacting infrastructure and communities.

SourceARC Centre of Excellence for Coral Reef Studies·JournalCommunications Earth & Environment·DateDec 3, 2020
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.

3D protein modeling suggests why COVID-19 infects some animals, but not others

A study published in PLOS Computational Biology found that certain animal species are susceptible to COVID-19 due to distinct structural features of the ACE2 receptor protein. The researchers used 3D modeling to simulate protein interactions and identified key features that enable viral entry into human cells.

SourcePLOS·JournalPLOS Computational Biology·DateDec 3, 2020

Research leads to better modeling of hypersonic flow

Scientists at the University of Illinois have developed a new way to model hypersonic flow, allowing for a better understanding of thermal protection systems and heat shields. The research uses quantum physics and machine learning to simulate the interactions between molecules and atoms in extreme environments.

SourceUniversity of Illinois Grainger College of Engineering·JournalThe Journal of Physical Chemistry A·DateDec 3, 2020

Cluster of Alaskan islands could be single, interconnected giant volcano

Researchers suggest a cluster of Alaskan islands may be part of a single, undiscovered giant volcano, with implications for understanding caldera-forming eruptions and the frequent explosive activity at Mount Cleveland. The proposed caldera would be even larger than Okmok and could have had significant global effects.

SourceAmerican Geophysical Union·DateDec 3, 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.

How to cool more efficiently

Researchers from the University of Barcelona, HZDR, and TU Darmstadt investigate the effects of simultaneously exposing alloys to magnetic fields and mechanical stress. They found that certain materials can boost their cooling efficiency by up to doubling it with commercially available neodymium permanent magnets.

SourceHelmholtz-Zentrum Dresden-Rossendorf·JournalApplied Physics Reviews·DateDec 3, 2020

Common pipe alloy can form cancer-causing chemical in drinking water

Researchers found that residual disinfectants in drinking water distribution systems react with chromium in iron pipes to produce carcinogenic hexavalent chromium. The study recommends reducing the use of pipes with high levels of chromium alloy and using a less reactive disinfectant.

SourceUniversity of California - Riverside·JournalEnvironmental Science & Technology·DateDec 3, 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.

Supercomputer simulations could unlock mystery of Moon's formation

Researchers ran supercomputer simulations to track material from the early Earth and a Mars-sized planet, Theia, after their collision. Simulations produced an orbiting body that could potentially evolve into a Moon-like object.

SourceDurham University·JournalMonthly Notices of the Royal Astronomical Society·DateDec 3, 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.

Can we improve our health with doses of safe, live microbes on a daily basis?

A group of seven interdisciplinary scientists published a review paper highlighting specific gaps in the research on live microbes and health outcomes. They argue that there is only weak evidence to date confirming the link between live microbes and better human health, and propose a plan for quantifying this relationship.

SourceInternational Scientific Association for Probiotics and Prebiotics·JournalJournal of Nutrition·DateDec 3, 2020

Daily data from COVID app predicts local incidence and prevalence of virus

The study uses self-reported data from over 2.8 million users to provide accurate estimates of COVID-19 prevalence and incidence, detecting regional hotspots and informing policy makers on targeted testing capacity. The app's daily data release enables early detection of changes in incidence or prevalence.

SourceKing's College London·JournalThe Lancet Public Health·DateDec 3, 2020
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.

Proverbial wolf can't blow down modern timber high-rises, says UBCO researcher

Researchers at UBC Okanagan have conducted extensive wind testing on tall mass-timber buildings and found that they can withstand high-wind events up to 20 storeys. However, for taller buildings, aerodynamic and structural improvements are needed to address excessive wind-induced motion.

SourceUniversity of British Columbia Okanagan campus·JournalJournal of Structural Engineering·DateDec 3, 2020

Outbreak investigation reveals "super-spreader" potential of Andes virus

A recent study published in The New England Journal of Medicine found that the Andes virus, carried by wild rodents, can cause severe respiratory disease in humans through extensive person-to-person contact. The outbreak in a small village in Argentina had the most extensive recorded human-to-human transmission of the virus to date.

SourceUS Army Medical Research Institute of Infectious Diseases·JournalNew England Journal of Medicine·DateDec 3, 2020

Blackcurrants are favorable for glucose metabolism

A new study from the University of Eastern Finland found that consuming blackcurrants after a meal can attenuate the rise and fall of blood glucose levels. The beneficial effect is attributed to berry-derived polyphenolic compounds, specifically anthocyanins, which slow down glucose absorption and reduce oxidative stress.

SourceUniversity of Eastern Finland·JournalBritish Journal Of Nutrition·DateDec 3, 2020

Gut microbiome snapshot could reveal chemical exposures in children

Researchers found bacteria that feed on toxic halogenated compounds, providing a potential mechanism for measuring exposure to semi-volatile organic compounds. The study suggests that certain SVOCs are correlated with the abundance of bacterial and fungal species in children's guts.

SourceDuke University·JournalEnvironmental Science & Technology Letters·DateDec 3, 2020
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.

New compact model for gene regulation in higher organisms

Researchers propose minimal extension to classic equilibrium model, capturing high specificity and noise in eukaryotic gene expression. The new model suggests a trade-off between specificity and noise, with high specificity leading to increased noise.

SourceInstitute of Science and Technology Austria·JournalProceedings of the National Academy of Sciences·DateDec 3, 2020

Adaptive Image Receive (AIR) coil from GE shows promise for whole-brain imaging

A prototype 16-channel head AIR coil from GE Healthcare has been shown to perform better than a conventional 8-channel head coil for in vivo whole-brain imaging, but not as well as a 32-channel coil. The coil's lightweight and flexible design exhibits improved electrical characteristics that could lead to future design improvements.

SourceAmerican Roentgen Ray Society·JournalAmerican Journal of Roentgenology·DateDec 3, 2020

Red Sea turtle hatchlings are feeling the heat

Research by KAUST reveals that sand temperatures at Red Sea nesting sites have exceeded the pivotal temperature threshold of 29.2 degrees Celsius, leading to feminization of hatchlings and potential mass mortality.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalConservation Science and Practice·DateDec 3, 2020

Mapping quantum structures with light to unlock their capabilities

A new laser-based method allows researchers to map the electronic structures of crystals at room temperature, revealing potential capabilities for solar cells, LED lights, and artificial photosynthesis. The technique also enables the design of novel semiconductor-based quantum devices.

SourceUniversity of Michigan·JournalScience·DateDec 3, 2020

Study finds metformin reduced COVID-19 death risks in women

Researchers found metformin use reduced mortality risk by 21-24% among female patients hospitalized for COVID-19. The study suggests inflammation reduction as a key mechanism, but more research is needed.

SourceUniversity of Minnesota Medical School·JournalThe Lancet Healthy Longevity·DateDec 3, 2020
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.

How a police contact by middle school leads to different outcomes for Black, white youth

A new University of Washington study examines the effects of early police contacts on Black and white adolescents, finding that Black youth are more likely to be treated as 'usual suspects' after a first encounter, leading to subsequent arrests. White youth with early police contact are not significantly more likely to be arrested later.

SourceUniversity of Washington·JournalSocial Problems·DateDec 3, 2020

Shuttering fossil fuel power plants may cost less than expected

According to a Georgia Institute of Technology researcher, shutting down fossil fuel power plants by 2035 may not require as many early closures as previously thought. By allowing existing plants to reach their typical lifespans, the cost of closure can be reduced and financial liabilities minimized.

SourceGeorgia Institute of Technology·JournalScience·DateDec 3, 2020

Study finds gamblers ignore important information when placing bet

Researchers found that individuals with gambling disorder focus on irrelevant information from previous gambles, rather than considering optimal probabilities and prize sizes. This impaired decision-making can lead to continued gambling despite mounting losses.

SourceUniversity of British Columbia·JournalJournal of Behavioral Addictions·DateDec 3, 2020
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.

Researchers discover how bean plants fend off famished foes

Researchers discovered that cowpea plants harbor receptors on their cells that can detect caterpillar saliva, triggering anti-herbivore defenses. The discovery sheds light on how plants activate their immune systems to defend against hungry insects.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·DateDec 3, 2020

Researchers developed a sequence analysis pipeline for virus discovery

Researchers from University of Helsinki developed Lazypipe to identify both known and novel viruses, demonstrating its efficacy in detecting SARS-CoV-2 without reference genome. The pipeline overcomes challenges in viral metagenomics, enabling rapid detection of emerging infectious diseases.

SourceUniversity of Helsinki·JournalVirus Evolution·DateDec 3, 2020

Chicago neighborhoods with barriers to social distancing had higher COVID-19 death rates

A new study found that Chicago neighborhoods with limited internet access and low health insurance coverage had higher COVID-19 death rates. Neighborhoods with high rates of COVID-19 mortality were often characterized by social vulnerability factors such as low educational attainment and high percentages of Hispanic/Latino residents.

SourceUniversity of Illinois Chicago·JournalAnnals of Epidemiology·DateDec 3, 2020

Electrical spin filtering the key to ultra-fast, energy-efficient spintronics

A UNSW study demonstrates all-electrical spin-to-charge conversion without magnetic field, enabling fast detection of spin accumulation in strongly spin-orbit coupled materials. The non-linear method facilitates orders of magnitude faster detection and time-resolved read-out down to 1 nanosecond resolution.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalPhysical Review B·DateDec 3, 2020

Study finds 10 metabolites associated with risk of stroke

Researchers identified 10 metabolites associated with the risk of stroke, including a lower risk for ischemic stroke and higher risk for hemorrhagic stroke. Histidine and high-density lipoprotein cholesterols were found to have protective effects, while pyruvate increased the risk of ischemic stroke.

SourceAmerican Academy of Neurology·JournalNeurology·DateDec 2, 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.

RUDN University professor suggested how to clean up space debris

A RUDN University professor suggested using a spacecraft-collector to remove space debris from lower orbits, which requires more complex equipment. For geostationary orbits, a tow-based approach is proposed, where the collector transports debris objects into the disposal orbit.

SourceRUDN University·JournalAdvances in Space Research·DateDec 2, 2020

Sensor can detect scarred or fatty liver tissue

A new diagnostic tool has been developed by MIT engineers to detect both fatty liver disease and fibrosis, which can lead to liver failure. The sensor uses nuclear magnetic resonance (NMR) technology to measure water diffusion in tissue, revealing the presence of fatty or scarred tissue with high accuracy.

SourceMassachusetts Institute of Technology·JournalNature Biomedical Engineering·DateDec 2, 2020
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.

Supernova surprise creates elemental mystery

A team of scientists from Michigan State University discovered that supernovae can forge carbon atoms over 10 times faster than previously thought. This finding challenges existing theories about the creation of Earth's heavy elements, particularly ruthenium and molybdenum isotopes.

SourceMichigan State University·JournalNature·DateDec 2, 2020

A hint of new physics in polarized radiation from the early universe

A new method to measure polarization angle developed, achieving precision twice that of previous work. A hint of parity symmetry violation found in the cosmic microwave background radiation with 99.2% confidence level.

SourceKavli Institute for the Physics and Mathematics of the Universe·JournalPhysical Review Letters·DateDec 2, 2020

Carbon dioxide converted to ethylene -- the 'rice of the industry'

A Korean research team has made a breakthrough in understanding the electrochemical conversion of CO2 to ethylene, a challenging process that could produce high-value-added chemicals. The study identified key intermediates and proposed copper hydroxide nanowire as a promising catalyst for enhancing selectivity.

SourceNational Research Council of Science & Technology·JournalEnergy & Environmental Science·DateDec 2, 2020
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.

Unmet job expectations linked to a rise in suicide, deaths of despair

Researchers found that men who expected to work in jobs without a college degree but faced declines in the job market were nearly three times as likely to suffer early deaths by suicide and drug poisoning. The study suggests closed pathways to sustaining working-class jobs contribute to increased rates of suicide and drug-poisoning mor...

SourceUniversity of Texas at Austin·JournalJAMA Network Open·DateDec 2, 2020

Drinking blocks a chemical that promotes attention

Scientists at UT Health San Antonio found that acute exposure to alcohol inhibits norepinephrine release, a chemical that activates vigilance-dependent astrocyte calcium activation. This leads to impaired attention and motor coordination, contradicting the cerebellum's role in motor control.

SourceUniversity of Texas Health Science Center at San Antonio·JournalNature Communications·DateDec 2, 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.

Cell membranes in super resolution

Scientists have created a method to expand lipids in cell membranes, enabling the imaging of proteins and organelles with unprecedented resolution. This breakthrough allows for detailed insights into bacterial infection mechanisms and potential therapeutic targets.

SourceUniversity of Würzburg·JournalNature Communications·DateDec 2, 2020

Oddly satisfying metamaterials store energy in their skin

Purdue University scientists have created a patterned sheet of domes that can store energy in its skin, enabling strong mechanical tasks and programmable data processing. The technology has potential applications in flexible robotics and mechanical computing, where energy storage and efficient processing are crucial.

SourcePurdue University·JournalAdvanced Science·DateDec 2, 2020

Discrimination on social media results in higher depression, anxiety among minority males

A study by Florida International University researchers found that young Hispanic males who experienced ethnic discrimination on social media had higher levels of depression and anxiety. The study's lead author noted that the impact may be due to increased exposure to discriminatory content specifically targeting men, threatening their...

SourceFlorida International University·JournalJournal of Clinical Psychology·DateDec 2, 2020

To increase organs available for transplant, reassess organ procurement organizations' metrics

Researchers analyzed national organ transplant data from 2008 to 2017 and found a wide variation in organ procurement organizations' efficiency. They proposed three new metrics that would give a more accurate and equitable representation of performance, highlighting the need for improved evaluation of the organ donation system.

SourceMichigan Medicine - University of Michigan·JournalJAMA Surgery·DateDec 2, 2020