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Science News Archive November 2020 - Page 3


Page 3 of 43

Older adults with dementia exhibit financial 'symptoms' up to six years before diagnosis

A new study by Johns Hopkins Bloomberg School of Public Health and Federal Reserve Board of Governors found that individuals with dementia miss payments on bills as early as six years before diagnosis. Financial symptoms like missed payments and subprime credit scores are unique to dementia and can be used as early predictors.

SourceJohns Hopkins Bloomberg School of Public Health·JournalJAMA Internal Medicine·DateNov 30, 2020

Like humans, some bees are more social than others

A study on honey bees found that individual differences in social interactions lead to universal patterns of behavior across species. Genetically related bees show fewer individual differences than humans, but still exhibit some variation in interaction frequency and food sharing.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 30, 2020

Fish oxygen demand in warming oceans

A new model suggests that warm waters may limit the active metabolism of large fishes due to reduced aerobic capacity. The study indicates that oxygen availability constrains metabolic demands in fishes, particularly in larger species.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 30, 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.

Separating gases using flexible molecular sieves

Researchers have discovered a class of flexible molecular sieves that can selectively separate gases, such as propylene from propane. This breakthrough has the potential to improve the efficiency of gas purification processes in the manufacture of high-quality plastics.

SourceUniversity of Liverpool·JournalNature Communications·DateNov 30, 2020

Researchers identify gene responsible for cellular aging

Scientists have identified a key gene mechanism controlling cellular aging and rejuvenation in mesenchymal stem cells. The GATA6/SHH/FOXP1 pathway regulates MSC aging and rejuvenation, offering insights into developing treatments for age-related diseases.

SourceAlphaMed Press·JournalStem Cells·DateNov 30, 2020

Surprising trove of sorghum diversity discovered in Australia -- but it's disappearing fast

Researchers discovered a surprising trove of wild sorghum relatives in Australia, offering potential solutions to combat drought and extreme heat. However, these economically important plants are in peril due to habitat destruction, invasive species, and climate change, highlighting the need for urgent conservation efforts.

SourceThe Alliance of Bioversity International and the International Center for Tropical Agriculture·JournalDiversity and Distributions·DateNov 30, 2020

Bridges between villages in Nicaragua serve as links to markets

A new study finds that bridge construction in rural Nicaragua significantly increases integration, leading to substantial positive economic impact on rural economies. Bridges also increase labor income for households in non-flood periods and agricultural productivity, resulting in higher profits and investments.

SourceYale University·JournalEconometrica·DateNov 30, 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.

HIV-like virus edited out of primate genome

Researchers successfully edited SIV - a virus closely related to HIV - from the genomes of non-human primates using CRISPR gene-editing. The breakthrough demonstrates that the editing tool can reach infected cells and tissues, including viral reservoirs where the viruses integrate into host DNA.

SourceTemple University Health System·JournalNature Communications·DateNov 30, 2020

Combination therapy might improve outcomes in treatment-resistant liver cancer

Researchers at Massachusetts General Hospital have identified a combination therapy that improves survival in mouse models of hepatocellular carcinoma. The dual therapy combines regorafenib to reprogram the tumor immune microenvironment and PD1 antibodies to stimulate anti-tumor immunity.

SourceMassachusetts General Hospital·JournalJournal for ImmunoTherapy of Cancer·DateNov 30, 2020

Scientists uncover the mysterious origin of canal grass in Panama

Researchers find that invasive canal grass in Panama originated from a sugarcane breeding program in Florida, where over 500 varieties were sent for testing. The plant's DNA matches those from Indonesia and suggests high ploidy levels, making it challenging to control its spread.

SourceSmithsonian Tropical Research Institute·JournalBiological Invasions·DateNov 30, 2020
Apple iPhone 17 Pro

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

Rutgers leading coronavirus therapeutic clinical trial

Researchers are investigating a potential treatment for people recently diagnosed with SARS-Cov2 who have no or mild symptoms. The trial aims to determine whether treating asymptomatic patients with a combination of medications can reduce viral replication and the risk of getting sick.

SourceRutgers University·DateNov 30, 2020

Customized programming of human stem cells

Scientists create a system to quickly and easily convert human stem cells into various cell types, including neurons and blood vessels. The researchers identified 290 DNA-binding proteins that reprogram stem cells into target cells within four days.

SourceUniversity of Bonn·JournalNature Biotechnology·DateNov 30, 2020

Researchers find how stress and the circadian clock affect sleep

Researchers have identified a neural pathway that links the circadian clock, stress, and wakefulness in mammals. The study found that excessively active corticotropin-releasing factor neurons triggered insomnia and other sleep disorders when the circadian rhythm was disturbed.

SourceNagoya University·JournalJournal of Mathematical Sciences Advances and Applications·DateNov 30, 2020

Dream reports during the COVID 19 pandemic

A new Brazilian study found that dreams during the COVID-19 pandemic lockdown are related to mental suffering and fear of contagion. The computational assessment of dream reports used in the study reveals these emotional connections.

SourcePLOS·JournalPLOS ONE·DateNov 30, 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.

Detecting bacteria with fluorescent nanosensors

A new method for detecting bacteria and infections has been developed using fluorescent nanosensors. These sensors can track down pathogens faster and more easily than traditional methods, allowing for improved patient care and rapid diagnosis of sepsis.

SourceUniversity of Göttingen·JournalNature Communications·DateNov 30, 2020

Biodiesel made from discarded cardboard boxes

A new microorganism has been developed to produce biodiesel precursors from lignocellulosic biomass, such as discarded agricultural by-products and cardboard boxes. The microorganism achieves twice the product yield of its predecessors, solving a limitation in biofuel production.

SourceNational Research Council of Science & Technology·DateNov 30, 2020

Recycled concrete could be a sustainable way to keep rubble out of landfi

A five-year study by University of British Columbia Okanagan researchers found that recycled concrete performs as well as conventional concrete, with comparable strength and durability. The innovative material can be a 100% substitute for non-structural applications and may eventually replace traditional construction methods.

SourceUniversity of British Columbia Okanagan campus·JournalConstruction and Building Materials·DateNov 30, 2020

Nonlinear beam cleaning in spatiotemporally mode-locked lasers

EPFL researchers demonstrate nonlinear beam cleaning, enabling generation of high-energy, ultrashort pulses with single-mode beam quality. They achieve sub-100 femtosecond pulses with high pulse energy and low M2 value without external amplification in a compact setup.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics·DateNov 30, 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.

Experimental vaccine for deadly tickborne virus effective in cynomolgus macaques

A DNA-based vaccine candidate has been found to be effective in protecting cynomolgus macaques from the Crimean-Congo hemorrhagic fever virus. The vaccine generated protective antibodies and prevented signs of disease in infected animals, offering a promising potential treatment for human patients.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNature Microbiology·DateNov 30, 2020

Molecular mechanism of long-term memory discovered

Scientists at the University of Basel have identified a key protein regulating long-term memory, found to decline with age. By studying roundworms, they discovered that a molecule called MPS-2 plays a central role in intact long-term memory and is also involved in age-related memory loss.

SourceUniversity of Basel·JournalCurrent Biology·DateNov 30, 2020

Healthcare accessibility in sub-Saharan Africa

The study estimates that sub-Saharan Africa requires approximately 2.5 million additional hospital beds by 2030. Countries in the region must prioritize facility expansion and new construction to address growing population needs.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 30, 2020

Towards accessible healthcare for all in sub-Saharan Africa

The study analyzes healthcare accessibility in sub-Saharan Africa and identifies a strategy to efficiently abate inequalities. Researchers estimate that ~6,200 new facilities need to be built by 2030 to meet universal healthcare targets.

SourceCMCC Foundation - Euro-Mediterranean Center on Climate Change·JournalProceedings of the National Academy of Sciences·DateNov 30, 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.

Business closures, partial reopenings due to COVID-19 could cost the US $3-$5 trillion GDP

A new USC study finds that the COVID-19 pandemic could result in net losses of $3.2 trillion and up to $4.8 trillion in U.S. Real Gross Domestic Product (GDP) over two years. The study's findings depend on factors such as business closures, gradual reopening processes, infection rates, and fatalities.

SourceUniversity of Southern California·JournalEconomics of Disasters and Climate Change·DateNov 30, 2020

The number of times a person gives birth may affect how quickly they age

A new study led by Penn State researchers found a link between the number of times a person gives birth and their physical aging process. The study discovered that people who had few or many births showed signs of quicker biological aging compared to those who had given birth three or four times. The effects were only visible after men...

SourcePenn State·JournalScientific Reports·DateNov 30, 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.

App predicts risk of developing Alzheimer's

Researchers at Lund University developed an app that predicts Alzheimer's disease risk based on blood biomarker levels, providing a more reliable and accessible early diagnosis method than current cerebral spinal fluid (CSF) analyses.

SourceLund University·JournalNature Aging·DateNov 30, 2020

Discoveries highlight new possibilities for magnesium batteries

Researchers from the University of Houston and Toyota Research Institute of North America have developed a new magnesium battery capable of operating at room temperature, delivering power density comparable to lithium-ion batteries. The new cathode and electrolyte enable high-power battery performance previously considered impossible.

SourceUniversity of Houston·JournalNature Energy·DateNov 30, 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.

How 'smell training' could help overcome post-viral smell distortions

A new study published in The Laryngoscope suggests that smell training can improve smell performance in patients with post-viral smell disorders. Participants who underwent smell training showed significant recovery, especially among older individuals who had lost the most amount of smell function.

SourceUniversity of East Anglia·JournalThe Laryngoscope·DateNov 30, 2020

Liver cirrhosis: Disease progression

A recent study by MedUni Vienna found that blood biomarkers for systemic inflammation increase with liver cirrhosis stages, predicting complications in asymptomatic patients. The severity of portal hypertension also correlates with levels of inflammatory markers, increasing mortality risk.

SourceMedical University of Vienna·JournalJournal of Hepatology·DateNov 30, 2020
Meta Quest 3 512GB

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

Getting a grip on better health

A study of over 600 men found that grip strength was associated with hypoxemia-induced reductions in peripheral neural innervation. Sleep apnea was also linked to fat infiltration of muscle and endothelial dysfunction, highlighting the importance of addressing this common sleep problem.

SourceFlinders University·JournalNature and Science of Sleep·DateNov 29, 2020

TPU scientists develop eco-friendly hydrogel for agriculture

TPU scientists have developed an eco-friendly hydrogel for agriculture that retains moisture and fertilizers in soil, degrading into non-toxic products. The new formulation uses natural components like whey protein and alginic acid, reducing the need for freshwater conservation and minimizing fertilizer's harmful effects on the soil.

SourceTomsk Polytechnic University·JournalJournal of Cleaner Production·DateNov 29, 2020

Men tuning into Insta-spiration

New research from Flinders University confirms men are responding to Instagram influencers' body image and fitness messages, with a high level of response to fitspiration goals. The study found exposure to bare-chested images resulted in lower body satisfaction compared to viewing clothed fashion images or scenery images.

SourceFlinders University·JournalBody Image·DateNov 29, 2020

Robot probes the Red Sea's carbon storage system

A KAUST team used an underwater robot to investigate the mesopelagic zone in the Red Sea, where warming waters and oxygen depletion slow organic carbon flow. The study found that most organic carbon is converted back into CO2 by microorganisms within days, with only a small percentage sinking to depths for centuries.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalGlobal Biogeochemical Cycles·DateNov 29, 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.

Game changer in thermoelectric materials could unlock body-heat powered personal devices

Researchers at the University of Wollongong have developed a new thermoelectric material with record-high conversion efficiency, improving heat-to-electricity conversion by over 60%. The discovery could enable the creation of body-heat powered personal devices, revolutionizing low-maintenance electronics and zero-carbon power generation.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalAdvanced Energy Materials·DateNov 28, 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.

Cereal, olive and vine pollen reveal market integration in Ancient Greece

Researchers found evidence of an export economy based on cash cropping in ancient Greece, primarily through olive cultivation, centuries before the Roman conquest. The study uses pollen records as a new source of quantitative data to measure landscape change and market integration.

SourceMax Planck Institute of Geoanthropology·JournalThe Economic Journal·DateNov 27, 2020

Small molecules control bacterial resistance to antibiotics

A research team at Friedrich-Schiller-Universitaet Jena has identified a small ribonucleic acid that influences the antibiotic-resistance of Vibrio cholerae. The protein CrvA plays a crucial role in maintaining cell form and is essential for survival on contact with penicillin.

SourceFriedrich-Schiller-Universitaet Jena·JournalNature Communications·DateNov 27, 2020

Insect-based foods could help tackle malnutrition

A £1 million international project is working to create an affordable insect-based porridge using mopane worms, a traditional delicacy in Zimbabwe. The initiative aims to improve the health and nutritional status of primary school children in some of the country's poorest communities.

SourceUniversity of Sheffield·DateNov 27, 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.

How stable is the Antarctic ice sheet?

Researchers found that the ice masses of East Antarctica could be less stable than thought, and a rise in global sea level threatens coastal areas. The study's findings indicate that the formation of large glaciers in the northern hemisphere contributed to the ice sheet's stability.

SourceHeidelberg University·JournalProceedings of the National Academy of Sciences·DateNov 27, 2020

Mine ponds amplify mercury risks in Peru's Amazon

A new study finds that mine ponds created by artisanal gold miners have increased the risk of mercury poisoning in Peru's Amazon. The proliferation of these ponds has amplified the environmental and human health risks associated with mercury exposure.

SourceDuke University·JournalScience Advances·DateNov 27, 2020

Poverty and honesty are not opposites

A new study challenges traditional assumptions about the link between poverty and dishonesty, finding that individuals cheat equally in periods of relative wealth and poverty. Researchers also found that brief social interventions can improve behavior when wealth increases, but have no effect during times of scarcity.

SourceWZB Berlin Social Science Center·JournalGames and Economic Behavior·DateNov 27, 2020

New procedure will reduce the need for rare metals in chemical synthesis

Researchers from Kanazawa University have developed a new procedure to reduce the use of rare metals in pharmaceutical and chemical syntheses. The study found that benzylic organoborates can perform tertiary alkylative cross-coupling reactions without using rare elements, paving the way for a more sustainable chemical industry.

SourceKanazawa University·JournalAngewandte Chemie·DateNov 27, 2020

How lockdown may lead to "avoidable harm" for the health of under 16s

Research by Lancaster University suggests that lockdown measures may result in avoidable harm for children under 16, as hospital attendances decreased but admissions increased. The study found that fear of COVID-19 and reduced personal thresholds for seeking medical care may have contributed to these findings.

SourceLancaster University·JournalPediatric Emergency Care·DateNov 27, 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.

UK's aim to half maternal mortality by 2030 is challenged by social inequalities, and increasing maternal age, obesity and c-section rates

The UK is facing an uphill battle in meeting its target of halving maternal mortality by 2030 due to increasing social inequalities and health risks. Maternal age, obesity, and caesarean sections are contributing factors. The European Society of Anaesthesiology and Intensive Care has highlighted these issues and recommended improvement...

SourceThe European Society of Anaesthesiology and Intensive Care (ESAIC)·DateNov 27, 2020