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Science News Archive November 2021 - Page 9


Page 9 of 40

Reboot and recall: new brain hub for memory restoration identified

Researchers have found that stimulating the anterior thalamus can increase memory-related brain activity and restore memory function in rats with MTT lesions. The study suggests that therapies targeting this region could help recover memory in patients with brain injury, challenging previous notions of memory recovery.

SourceElsevier·JournalCurrent Research in Neurobiology·TypeObservational study·DateNov 23, 2021

Can we perceive gender from children's voices?

Researchers at the University of California, Davis and the University of Texas at Dallas found that listeners can reliably identify the gender of individual children as young as 5. They also discovered that identification of gender must take place jointly with the identification of age and likely physical size.

SourceAmerican Institute of Physics·JournalThe Journal of the Acoustical Society of America·DateNov 23, 2021

Clinical trial denounces use of platelet-rich plasma injections for knee joint osteoarthritis

A recent clinical trial published in the Journal of the American Medical Association found that platelet-rich plasma injections had no significant benefits for reducing knee pain in people with mild to moderate osteoarthritis. The study, which involved 288 participants, compared platelet-rich plasma injections to placebo injections and...

SourceUniversity of Melbourne·JournalJAMA·TypeRandomized controlled/clinical trial·DateNov 23, 2021

New method gives rapid, objective insight into how cells are changed by disease

A new 'image analysis pipeline' called TDAExplore gives scientists rapid insight into how cells are changed by disease, using a combination of microscopy, topology, and artificial intelligence. This approach can provide objective information on cell changes, such as the movement of proteins like actin, even with limited training data.

Hepatitis drug increases antibiotic potency, limits antibiotic resistance

A study led by New York University researchers found that the FDA-approved hepatitis C treatment telaprevir can increase bacterial sensitivity to antibiotics and reduce antibiotic resistance. The antiviral blocks the function of essential proteins in bacteria, revealing an opportunity to repurpose the drug to use alongside antibiotics.

SourceNew York University·JournalCell Chemical Biology·TypeExperimental study·DateNov 23, 2021

For a fungus, the right “accessories” can make or break a relationship with a plant

A new study explores how plants respond differently to useful and harmful microbes, revealing that accessory chromosomes from fungal strains dictate these responses. Most plant genes are expressed similarly in response to both beneficial and pathogenic fungi, but with key differences occurring just 12 hours after interaction.

SourceAmerican Phytopathological Society·JournalMolecular Plant-Microbe Interactions·TypeExperimental study·DateNov 23, 2021

New process makes every atom matter for sustainable catalyst production

Scientists have discovered a new process to break bulk metal into atoms for sustainable catalyst production. The method uses magnetron sputtering to achieve record-breaking rates of atom dispersal, enabling the fabrication of valuable catalyst materials. This breakthrough has significant implications for industries reliant on catalysts.

SourceUniversity of Nottingham·JournalJournal of Materials Chemistry A·TypeExperimental study·DateNov 23, 2021

Salvaging rare earth elements from electronic waste

A new nanotechnology developed by Penn State researchers selectively recovers neodymium and other rare earth elements from electronic waste using plant cellulose. The process is environmentally friendly and can separate neodymium in seconds, making it a sustainable solution for recycling.

SourcePenn State·JournalChemical Engineering Journal·DateNov 23, 2021

New index tracks US state progress on promoting the health and well-being of older populations for the first time

A new index ranks US states based on their support for successful aging across five domains: productivity, security, equity, cohesion, and well-being. The study found that no single domain drives the results, and state policies play a significant role in adapting to an aging population.

Deeper defense against cyber attacks

A KAUST team developed an improved method for detecting malicious intrusions using deep learning, achieving accuracy rates of up to 99% in simulations of different kinds of attacks. This stacked deep learning approach promises an effective defense against cyberattacks and could prevent outages in critical infrastructure.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalCluster Computing·TypeComputational simulation/modeling·DateNov 23, 2021

Remote responders

A new study by UNM researchers found that patients treated in rural emergency departments had similar outcomes to those receiving care in urban EDs for life-threatening conditions. However, rural patients with vague symptoms fared worse due to limited diagnostic capabilities and transfer processes.

SourceUniversity of New Mexico Health Sciences Center·JournalJAMA Network Open·TypeCase study·DateNov 23, 2021

Less than 10% of opioid overdose patients are prescribed potentially lifesaving medications after emergency treatment

A Michigan Medicine study found that only 7.4% of patients received naloxone and 8.5% received buprenorphine prescriptions within 30 days of an opioid overdose. The low rates highlight missed opportunities for equipping patients with rescue medicines to use in case of future overdoses.

SourceMichigan Medicine - University of Michigan·JournalAnnals of Emergency Medicine·TypeData/statistical analysis·DateNov 23, 2021

The Lancet Infectious Diseases: First real-world study reports effectiveness of BBV152 against symptomatic COVID-19 in India

A real-world study of BBV152 found that two doses resulted in 50% effectiveness against symptomatic COVID-19 in hospital workers. The study's findings support the importance of a second dose for maximum protection, but highlight limitations in estimating vaccine effectiveness against severe outcomes.

SourceThe Lancet·JournalThe Lancet Infectious Diseases·TypeObservational study·DateNov 23, 2021

Ultrashort-pulse lasers kill bacterial superbugs, spores

Researchers have found that ultrashort-pulse lasers can inactivate antibiotic-resistant bacteria and bacterial spores, reducing their numbers by over 1,000 times. The technology has the potential to be used to sterilize wounds and disinfect blood products, and may also be used to treat bloodstream infections.

SourceWashU Medicine·JournalJournal of Biophotonics·TypeExperimental study·DateNov 23, 2021

Athletes need thorough tests after long COVID

A new study published in Annals of Medicine recommends that athletes returning to training after long COVID undergo a series of tests and receive regular advice from medical specialists. The researchers defined long COVID as symptoms lasting more than four weeks, and warned of the risk of organ damage and mental health issues.

SourceAnglia Ruskin University·JournalAnnals of Medicine·TypeLiterature review·DateNov 23, 2021

Researchers investigate link between bilingualism and false memories

A study published in Frontiers in Psychology found that false information in both native and second languages equally contribute to the formation of false memories. The researchers used an online experiment with participants speaking Russian and English to assess the influence of misinformation and source misattribution on memory recall.

How eating less in early life could help with reproduction later on

Researchers found that females who consumed less food for their entire lives lived longer but didn't reproduce as well as better-fed counterparts. However, those who switched to unlimited food after early life restriction started mating and reproducing more, producing three times more offspring than restricted diet flies.

SourceUniversity of East Anglia·JournalProceedings of the Royal Society B Biological Sciences·TypeExperimental study·DateNov 23, 2021

Understanding Eraser Enzymes

MRNA eraser enzymes play a crucial role in regulating gene expression and cell fate decisions. Research on these enzymes may lead to the development of therapeutics that target misbehaving erasers in disease. The team aims to understand how these enzymes recognize and choose specific methyl groups to remove from RNA.

Measuring inequality in COVID-19 mortality

The study found significant disparities in COVID-19 mortality rates among racial and ethnic groups and those with different levels of educational attainment. The researchers analyzed data from 219 million adults aged 25 or older to identify these inequalities.

SourceJAMA Network·JournalJAMA Network Open·DateNov 23, 2021

How well do wet masks contain droplets?

Researchers found that wet masks make it more difficult for respiratory droplets to penetrate and escape the mask, splintering into smaller aerosolized particles. This is because wet masks create additional resistance due to their hydrophobic or hydrophilic materials, making them more effective at stopping droplet penetration.

SourceUniversity of California - San Diego·JournalPhysical Review Fluids·TypeExperimental study·DateNov 22, 2021

Microrobots for treating neurological diseases through intra-nasal administration

Researchers developed a magnetically powered microrobot for minimally invasive delivery into brain tissue via the intranasal pathway, overcoming limitations in traditional stem cell therapy. The new method is expected to bring possibilities for treating various intractable neurological diseases.

SourceDGIST (Daegu Gyeongbuk Institute of Science and Technology)·JournalAdvanced Healthcare Materials·DateNov 22, 2021

Snow cover critical for revegetation following high-severity forest fires, OSU study shows

A new OSU study found that snow cover plays a critical role in post-fire revegetation in the Pacific Northwest. Summer precipitation was the most important variable driving this process across four subregions, while snow cover frequency and prefire forest composition were also significant influencers.

SourceOregon State University·JournalJournal of Geophysical Research Biogeosciences·TypeObservational study·DateNov 22, 2021

Giving social support to others may boost your health

A new study from Ohio State University suggests that giving social support to others is essential for boosting one's health. The research found that people who were available to provide social support experienced lower inflammation levels, whereas those who only received support did not show the same benefits.

SourceOhio State University·JournalBrain Behavior and Immunity·TypeData/statistical analysis·DateNov 22, 2021

Inadequate sleep is bad for preteens’ brains

A study from Boston Children's Hospital found that inadequate sleep can jeopardize brain organization in early adolescence, leading to deficits in cognitive processes such as attention, reward, and memory. The research identified racial disparities in the impact of sleep on brain networks, with non-white participants experiencing dispr...

SourceBoston Children's Hospital·JournalCerebral Cortex Communications·DateNov 22, 2021