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Science News Archive November 2021 - Page 11


Page 11 of 40

Healthier UK diets linked to lower greenhouse gas emissions

A new analysis found that non-vegetarian diets result in higher greenhouse gas emissions than vegetarian diets, while a diet rich in nutrients and low in saturated fats can significantly reduce emissions. The study suggests small changes, such as cutting out sweets or switching brands, can make big environmental gains.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateNov 22, 2021

Stanford researchers reveal how to turn a global warming liability into a profitable food security solution

A new process converts potent greenhouse gas methane into protein-rich fishmeal, a potential solution for global food security. The analysis found production costs involving methane from certain US sources are lower than conventional fishmeal prices, with feasible cost reductions possible using other methane sources.

SourceStanford University·JournalNature Sustainability·DateNov 22, 2021

Viral Visitation

Researchers at UNM's AIM Center have discovered how SARS-CoV-2 coronavirus interferes with the autophagy process, a vital cellular mechanism for recycling debris and invading microorganisms. The study found that the virus hijacks cellular membranes to evade immune systems.

SourceUniversity of New Mexico Health Sciences Center·JournalCell·TypeExperimental study·DateNov 22, 2021

Why long samples are one of the keys to improving predictive algorithms in finance

A recent study published in The Journal of Finance and Data Science suggests that long-term returns are stable and easier to predict than short-term returns, which suffer from noise and 'look-ahead' bias. The study also found that larger training samples are required for optimal model performance

SourceKeAi Communications Co., Ltd.·JournalThe Journal of Finance and Data Science·TypeData/statistical analysis·DateNov 22, 2021

Deep learning algorithms assist in identifying microplastics in human body

A study has developed a method using dark-field microscopy and deep learning algorithms to identify microplastics in human cells, achieving an accuracy of 93% for 1-micron polystyrene particles. The technique has the potential to screen microplastics in various samples, reducing time-consuming data acquisition and processing steps.

SourceKazan Federal University·JournalAnalytical and Bioanalytical Chemistry·TypeExperimental study·DateNov 22, 2021

Private education in lower-income countries is having limited impact on learning

A study of over 560,000 children in India, Pakistan, Kenya, and Uganda found that private education made little difference in learning outcomes, with gains largely attributed to more advantaged backgrounds. The researchers suggest that private schools may be drawing support away from state education without significantly improving stan...

SourceUniversity of Cambridge·JournalComparative Education Review·DateNov 22, 2021

Getting quantum dots to stop blinking

A team of chemists at MIT has developed a method to control the blinking phenomenon in quantum dots using mid-infrared laser light, eliminating intermittency for precise applications. This technique may also be applicable to other materials, enabling new uses in biological research and quantum information science.

SourceMassachusetts Institute of Technology·JournalNature Nanotechnology·DateNov 22, 2021

Ancient Aboriginal bush medicine could improve modern day cancer treatment

Researchers from the University of Copenhagen have discovered a natural substance, a flavonoid, that can inhibit cancer cells' ability to defend themselves against chemotherapy by targeting efflux pumps. This could lead to more effective treatment and potentially even combat antibiotic resistance.

SourceUniversity of Copenhagen - The Faculty of Health and Medical Sciences·JournalBiomolecules·TypeExperimental study·DateNov 22, 2021

Scientists pick up the 'slack' on describing the brain networks behind motor function

A new study by Ritsumeikan University reveals that whole-body dynamic balance training increases brain connectivity and improves motor learning. The research found significant changes in brain activity associated with offline learning, opening up new avenues for studying neural networks during natural tasks.

SourceRitsumeikan University·JournalMedicine & Science in Sports & Exercise·TypeExperimental study·DateNov 22, 2021

New documentation of dramatic climate changes at the end of the last ice age sheds light on the transition from nomadic hunter-gatherer to settlement and farming societies

Researchers reconstruct Land of Israel climate at end of last ice age using plant remains, revealing significant temperature and precipitation differences that impacted the transition from hunter-gatherer to settled agricultural societies. The study provides insights into the region's flora and its response to past climate change.

SourceTel-Aviv University·JournalQuaternary Science Reviews·DateNov 22, 2021

Deleting dysfunctional cells alleviates diabetes

Researchers at UConn Health have discovered that eliminating senescent cells in human fat tissue can alleviate signs of diabetes and improve insulin sensitivity. The study suggests that clearing away these dysfunctional cells could lead to game-changing new treatments for Type 2 diabetes.

SourceUniversity of Connecticut·JournalCell Metabolism·TypeExperimental study·DateNov 22, 2021

Stereotypes in STEM fields start by age six

A new study by the University of Houston researcher found that gender stereotypes in computer science and engineering begin at age six, leading to a lack of representation of girls and women in these fields. The study suggests that introducing high-quality STEM activities in elementary school can help close the gender gap.

SourceUniversity of Houston·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 22, 2021

Cascading femtosecond lasers into the mid-infrared

Researchers at ETH Zurich demonstrate the first direct femtosecond-pulse emission from a quantum cascade laser in the mid-infrared region, generating powerful pulses as short as 630 femtoseconds and 4.5 watt peak power. This breakthrough opens up practical routes to accessing ultrafast dynamics across the molecular fingerprint region.

SourceETH Zurich Department of Physics·JournalNature Photonics·TypeExperimental study·DateNov 22, 2021

Prediction of lupus nephritis treatment response may help doctors and patients preserve precious kidney function

A new web-based application uses machine learning to predict lupus nephritis treatment response, considering various disease indicators. The tool may help physicians identify patients at risk of poor outcomes, enabling them to provide targeted care and preserve as much kidney function as possible.

SourceMedical University of South Carolina·JournalLupus Science & Medicine·TypeExperimental study·DateNov 22, 2021

Mystery of high performing novel solar cell materials revealed in stunning clarity

Perovskite materials have emerged as promising alternatives to crystalline silicon for producing solar panels. Despite defects that reduce performance, perovskites show impressive efficiency levels comparable to silicon alternatives. Researchers used multimodal microscopy methods to visualize and explain the complex interactions betwee...

SourceUniversity of Cambridge·JournalNature Nanotechnology·TypeExperimental study·DateNov 22, 2021

Biased beta-agonists may provide better control of asthma and other obstructive lung diseases, drug discovery study shows

A University of South Florida Health-led team discovered a lead candidate that selectively relaxes airway smooth muscle cells with no detectable drug desensitization. The biased beta-agonist, C1-S, offers a therapeutic option for asthma and obstructive lung diseases without the rapid loss of effectiveness seen with traditional β-agonists.

SourceUniversity of South Florida (USF Health)·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 22, 2021

Kids, teens believe girls aren’t interested in computer science, study shows

A recent study from the University of Washington and the University of Houston found that children as young as age 6 develop ideas that girls are less interested than boys in computer science and engineering. The study suggests that these gender-based beliefs can contribute to a gender gap in STEM college courses and related careers.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 22, 2021

How to eat a poison butterfly

Scientists have discovered that four types of monarch predators - a bird, a mouse, a parasitic wasp, and a worm - evolved the same unusual cellular mutations as monarchs. These mutations allow them to resist the toxic effects of milkweed plant toxins, which can be deadly to most animals.

SourceUniversity of California - Riverside·JournalCurrent Biology·DateNov 22, 2021

Carbon labelling can potentially encourage eco-friendly E-commerce

Researchers at Singapore University of Technology and Design found that adding carbon emission labels can influence online shoppers to choose more sustainable shipping options. The study showed that slow shipping options result in lower emissions but longer delivery times, with an 81% reduction in emissions possible.

SourceSingapore University of Technology and Design·JournalTransportation Research Record Journal of the Transportation Research Board·DateNov 19, 2021

Repurposed ALS drug shows promise in mouse model of rare childhood genetic disorder

A study published in Molecular Genetics and Metabolism found that riluzole slows the progression of Niemann-Pick disease type C1 by reducing glutamate toxicity, increasing mouse survival by 12%. Researchers believe similar drugs may help slow disease progression in patients with NPC1.

Breaking down cancer’s defenses

Researchers engineered a probiotic designed to target and break down cancer cell defenses, allowing therapies to kill tumors more effectively. The new probiotic was tested in animal models of breast and colon cancer, showing promising results with improved survival rates.

SourceUniversity of Cincinnati·JournalAdvanced Healthcare Materials·TypeExperimental study·DateNov 19, 2021

Unborn babies could contract Covid-19 says study, but it would be uncommon

A new study suggests that unborn babies could contract Covid-19 if their gut is exposed to the SARS-CoV-2 virus. However, researchers say that this risk is extremely limited due to the placenta's protective shield. Vaccination against Covid-19 during pregnancy is still recommended as a way to protect the unborn baby.

SourceUniversity College London·JournalBJOG An International Journal of Obstetrics & Gynaecology·TypeObservational study·DateNov 19, 2021

Cystic fibrosis faithfully modeled in a human Lung Airway Chip

Researchers at Harvard's Wyss Institute have developed a microfluidic Organ Chip device that accurately models cystic fibrosis lung airway pathology. The model replicates key pathological hallmarks, including mucus layer changes and inflammatory responses, providing a comprehensive preclinical human model for investigating new therapies.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalJournal of Cystic Fibrosis·TypeExperimental study·DateNov 19, 2021