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Science News Archive July 2018 - Page 17


Page 17 of 38

Dry casks take the heat

Sandia National Laboratories has built a scaled test assembly to mimic a dry cask storage container for spent nuclear fuel. The team is providing new data on how fuel temperatures change during storage and affect the integrity of the metal cladding surrounding the spent fuel.

Identified RNA molecules that regulate action of male hormone in prostate cancer

A study has identified 600 novel long noncoding RNA molecules that regulate the effects of androgens and androgen receptors on gene expression in prostate tumors. These lncRNAs are powerful regulators of gene expression and interact with and magnify the effect of regulatory proteins, suggesting a new target for treatment.

AI technology could help protect water supplies

Researchers have developed an AI system that can identify and quantify cyanobacteria in water samples in about one to two hours, reducing the need for expensive lab tests. This tool could provide early warnings of problems, helping to ensure safe drinking water and preventing public health issues.

SourceUniversity of Waterloo·JournalScientific Reports·DateJul 18, 2018

Link found between bitter-taste sensitivity and cancer risk

Researchers found that older women with high bitter-taste sensitivity had a significantly higher cancer risk, despite not consuming fewer vegetables. The study suggests that the relationship between bitter-taste sensitivity and cancer may relate more to overall diet quality than just vegetable consumption.

SourcePenn State·JournalEuropean Journal of Nutrition·DateJul 18, 2018

Prolonged opioid use before knee or hip replacement surgery increases risk of poor outcomes

A study published in The Journal of Bone & Joint Surgery found that patients taking prescription opioids for more than 60 days before total knee or hip replacement surgery are at higher risk of hospital readmission and repeat joint-replacement surgery. Prolonged opioid use was associated with an increased risk of both adverse outcomes,...

SourceWolters Kluwer Health·JournalJournal of Bone and Joint Surgery·DateJul 18, 2018

A safe and effective way to whiten teeth

Researchers have developed a new, less destructive teeth whitening method using blue light-activated nanoparticles. The treatment showed similar whitening levels to hydrogen peroxide-based agents without enamel damage or cytotoxicity. Additionally, the therapy demonstrated antibacterial activity against certain bacteria.

SourceAmerican Chemical Society·JournalACS Biomaterials Science & Engineering·DateJul 18, 2018

Water may be key to understanding sweetness

A study by Maria Antonietta Ricci and colleagues found that fructose forms the shortest and strongest hydrogen bonds with water, allowing it to bind more snugly with protein receptors. This interaction enables greater stimulation and perception of sweetness. Mannose, on the other hand, forms longer and weaker hydrogen bonds with water.

SourceAmerican Chemical Society·JournalThe Journal of Physical Chemistry Letters·DateJul 18, 2018

Doing school differently

The not-school movement is an alternative approach to education that recognizes individual learning needs and talents, providing options for students who struggle in traditional school environments. This movement emphasizes the importance of creativity, innovation, and real-world experience in education.

Timing of dinner may affect breast and prostate cancer risk

A new study found that eating an early supper and having a long interval between the last meal and sleep are associated with lower breast and prostate cancer risks. Participants who had supper before 9pm or slept 2 or more hours after supper had a reduced risk of developing these cancers.

SourceWiley·JournalInternational Journal of Cancer·DateJul 18, 2018

Lowering hospitals' Medicare costs proves difficult

A new study found that a bundled-payment system did not lower Medicare costs for patients hospitalized for serious medical conditions. Despite providing financial incentives, hospitals saw no significant reductions in costs, with average costs remaining largely unchanged.

SourceWashU Medicine·JournalNew England Journal of Medicine·DateJul 18, 2018

Neurons can carry more than one signal at a time

Researchers from Duke University found that single neurons can switch between encoding information for two different sounds, suggesting a potential explanation for how the brain processes complex information. The study's results may also shed light on perceptual and cognitive limitations.

SourceDuke University·JournalNature Communications·DateJul 18, 2018

Traditional Tibetan medicine exposes people and environment to high mercury levels

Researchers have found that traditional Tibetan medicine (TTM) contains high levels of mercury and methylmercury, with Tibetans exposed to 34-fold higher daily intake than in regions specializing in mercury mining. This exposure results in the release of significant amounts of total mercury into municipal sewage and the environment.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateJul 18, 2018

'Greener' ways to color clothes

The textile industry is exploring alternative coloring methods that minimize environmental impact, with companies developing dyes that require less water and energy. Innovative approaches like inkjet printing and microbial fermentation are being tested to create more sustainable fashion.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJul 18, 2018