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Science News Archive 2020 - Page 247


Page 247 of 512

Love-hate relationship of solvent and water leads to better biomass breakup

A team of scientists at Oak Ridge National Laboratory used neutron scattering and supercomputing to understand how an organic solvent and water work together to break down plant biomass. They identified optimal temperatures for the process, which can aid in the rational design of even more efficient technologies.

SourceDOE/Oak Ridge National Laboratory·JournalProceedings of the National Academy of Sciences·DateJul 15, 2020

'Bystander' Cs meet their match in gene-editing technique

Biomolecular engineers at Rice University have developed a gene-editing technique that dramatically enhances the accuracy of CRISPR-based edits. The new technique, called A3G-BE, precisely modifies single targeted cytosine mutations while minimizing unwanted editing, showing significant success in treating disease-relevant contexts.

SourceRice University·JournalScience Advances·DateJul 15, 2020

In the sharing economy, consumers see themselves as helpers

A new study by Ohio State University suggests that consumers view independent providers in the sharing economy differently from traditional employees. Firms like Uber and Airbnb should focus on people who provide their services to effectively market themselves to consumers. This shift in perception may have implications for consumer be...

SourceOhio State University·JournalJournal of Marketing·DateJul 15, 2020

Penn researchers find three distinct immune responses for sicker COVID-19 patients

A new study from Penn researchers identified three distinct immune profiles in severely ill COVID-19 patients. These immunotypes were characterized by different levels of CD4+ and CD8+ T cell activity, with the third type showing little to no immune response. The findings could help predict disease severity and guide treatment strategies.

Ideal way to screen for disease

Scientists at Flinders University recommend AIEgen technology for accurate clinical biomarkers and rapid disease screening through bioprobe tests. The technique can detect disease biomarkers in very low concentrations using low-cost, portable devices.

SourceFlinders University·JournalMaterials Chemistry Frontiers·DateJul 15, 2020

Space station motors make a robotic prosthetic leg more comfortable, extend battery life

Researchers developed a new robotic prosthetic leg that consumes half the battery power of state-of-art robotic legs while producing more force. The streamlined design features regenerative braking, which charges the battery with energy captured when the foot hits the ground, enabling users to walk for over twice as long on one charge.

SourceUniversity of Michigan·JournalIEEE Transactions on Robotics·DateJul 15, 2020

How long should you fast for weight loss?

A new study published in Cell Metabolism found that two daily fasting diets, with eating windows of 4-6 hours, can lead to significant weight loss and improved cardiometabolic risk factors. Participants lost about 3% of their body weight by reducing calorie intake and showed reduced insulin resistance and oxidative stress levels.

SourceUniversity of Illinois Chicago·JournalCell Metabolism·DateJul 15, 2020

What COVID-19 can teach tourism about the climate crisis

New research from Lund University suggests that COVID-19 has exposed the tourism industry's lack of resilience to downturns and its vulnerability to the climate crisis. The study advises destinations to prioritize shorter stays, increase local profits, and rethink food services to reduce carbon emissions.

SourceLund University·JournalJournal of Travel Research·DateJul 15, 2020

Slow growth the key to long term cold sensing

Researchers have found a new temperature sensing mechanism in plants that uses slow growth to measure long-term changes in temperature. The study reveals that the protein NTL8 plays a crucial role in this process, accumulating slowly over time and being diluted by faster growth rates.

SourceJohn Innes Centre·JournalNature·DateJul 15, 2020

Consensus statement on doppler waveforms

The document proposes standardized nomenclature for arterial and venous waveforms, aiming to improve communication amongst vascular professionals and ultimately enhance patient care. It covers various vascular territories throughout the body, including carotid, peripheral arterial, and renal circulation.

SourceSAGE·JournalVascular Medicine·DateJul 15, 2020

Scientists open new window into the nanoworld

Researchers at JILA have developed an ultraviolet laser technique to probe materials down to 5 nanometers thick, revealing surprising discoveries about material behavior. The study found that very thin materials can be up to 10 times softer than expected, and certain dopings can disrupt atomic bonds, affecting strength.

SourceUniversity of Colorado at Boulder·JournalPhysical Review Materials·DateJul 15, 2020