All USA & Canada articles – Page 6
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NewsCopper antimicrobials can drive antibiotic resistance in bacteria, but there’s a fix, scientists say
Microbiologists have found that heavy use of copper antimicrobials can drive antibiotic resistance in bacteria. However, resistance quickly diminishes without copper exposure, suggesting that copper could help reduce antibiotic resistance if alternated with other measures.
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NewsNational study urges expanded vaccine screening in emergency departments
About 49% of people are unaware of one or more vaccines recommended for them. Further, 86% have not received one or more of these vaccines, according to the first national comprehensive vaccine surveillance study conducted in emergency departments.
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NewsMaple compound offers new way to fight tooth decay
A new study highlights the potential of using a natural compound from maple to combat the bacteria responsible for tooth decay: Streptococcus mutans. Epicatechin gallate is a powerful and safe alternative to traditional plaque-fighting agents.
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NewsScientists home in for a close look at lung infections
A new study has meticulously sampled different lung regions in people with cystic fibrosis to understand why infections persist after new treatments.
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NewsSweet disguise: the human body hides RNA with sugar coatings
To our immune system, naked RNA is a sign of a viral or bacterial invasion and must be attacked. But our own cells also have RNA. To ward off trouble, our cells clothe their RNA in sugars, a new study reports.
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NewsNanoparticles that self-assemble at room temperature could transform vaccine delivery
Researchers have engineered polymer-based nanoparticles that form with a simple temperature shift—no harsh chemicals, no specialized equipment, and no processing needed. They can self-assemble at room temperature and deliver RNA to living cells.
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NewsDisarming a hidden killer: Predicting – and preventing – C. diff before it strikes
Researchers have developed a powerful, personalized modeling framework to predict whether Clostridioides difficile is likely to colonize an individual’s gut, and to test whether specific probiotic therapies might prevent and/or reverse that colonization.
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NewsResearchers create improved natural blue food dye from algae
Food scientists have created a natural blue food dye made of algae protein that could replace petroleum-based artificial food colorants with a stable, adaptable option.
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NewsStudy unearths rich rhizodeposits data for better bioenergy crops
Scientists conducted a meticulous analysis of the compounds released by plant roots into their surrounding environment. The analysis yielded an abundance of data that can guide research aiming to improve the way we grow energy and food crops.
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NewsUnlocking the hidden patterns of the gut microbiome with association rule mining
A new study introduces Association Rule Mining (ARM) as a powerful tool to uncover higher-order microbial interactions. The data mining technique allows researchers to identify frequent microbial patterns and their potential health implications.
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NewsAssisted by sniffer dogs and DNA sequencing, researchers discover three new truffle species
Biologists studying fungal evolution and ecology have discovered three new truffle species, including one capable of commanding hundreds of dollars per pound within culinary circles.
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NewsNew imaging approach transforms study of bacterial biofilms
Scientists have reimagined the capabilities of atomic force microscopy, transforming it into a tool that captures large-scale biological architecture. This advance offers an unprecedented view of biofilm organization.
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NewsImperfect underground processes help filter wastewater in Florida Keys
Researchers find that microbial and other processes do not completely clear wastewater shallowly injected into groundwater of potentially harmful contaminants.
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NewsStudy finds gaps in evidence for air cleaning technologies designed to prevent respiratory infections
A new study finds that although many technologies claim to clean indoor air and prevent the spread of viruses like COVID-19 and the flu, most have not been tested on people and their potential risks are not yet fully understood.
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NewsNew study illuminates how diatoms thrive in — and light up — the Southern Ocean
An area of the remote Southern Ocean that’s long confused ocean color satellites by reflecting large amounts of turquoise-colored light appears to be full of silica-rich diatoms, according to a new study. There is also evidence in these polar waters of coccolithophores.
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NewsResearchers debunk long-standing concern about flu treatment in children
Researchers have debunked a long-standing theory about oseltamivir, known as Tamiflu. Oseltamivir treatment during flu episodes was associated with a reduced risk of serious neuropsychiatric events, such as seizures, altered mental status and hallucination.
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NewsWhy killer cells can lapse into ‘exhausted’ CD8+ T cells that no longer can stem disease
In a detailed study of exhausted T cell subsets researchers show that a transcriptional repressor called Gfi1 is a key regulator of the subset formation of exhausted CD8+ T cells and may offer a key to reducing exhaustion.
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NewsNew study: Powerboats can impact lakes below the surface, stimulating algaL growth
Large surface waves produced by powerboats are a mainstay for recreational watersports. A new study shows that beneath the surface, factors such as propeller thrust and other types of waves can impact delicate lakebed ecosystems.
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NewsOrganized scientific fraud is growing at an alarming rate, study reveals
Although concerns around scientific misconduct typically focus on lone individuals, a study of scientific fraud has uncovered sophisticated global networks of individuals and entities, which systematically work together to undermine the integrity of academic publishing.
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NewsNew mega RNA virus may hold the key to mass oyster die-offs
Scientists have discovered a previously unknown virus in farmed Pacific oysters during a mass die-off in B.C., Canada. The discovery serves as a reminder that growers should exercise caution when moving young oysters, to prevent potential spread of pathogens.