Low-level radioactive material from UK and French nuclear sites helps researchers track ocean currents carrying greenhouse gases throughout the world, according to findings presented at Goldschmidt2017. "This is the first study to show precise and continuous tracking of Atlantic water flowing northward into the Arctic Ocean off Norway, circulating around the arctic basins and returning to the Nordic seas in what we call the 'Arctic loop,' and then flowing southward down the continental slope of North America to Bermuda," said study leader John Smith.
Miniature robotic vehicles have delivered antibiotics to mice stomachs, successfully treating bacterial infections, according to a study published in Nature Communications. Called micromotors, the little robots are coated, allowing them move around and stick to various sites in the stomach, releasing antibiotics when stomach acids are lowest.
Extremely active supermassive black holes within jellyfish galaxies may be feeding off the galaxies' lengthy tendrils, a study published in Nature suggests. Researchers say ram pressure, the same process that creates a jellyfish galaxy's tentacles of stars, may also be pushing that material into the black holes.
A chewing gum containing the bittering agent denatonium wrapped in a molecule activated by salivary enzymes could be used to detect peri-implant disease in patients with dental implants, researchers reported in Nature Communications. The gum was tested on an artificial tongue and tests in people will begin soon, plus the researchers are working on variations to detect other oral infections, such as strep throat.
The National Science Foundation has awarded a $6 million grant to a University of Delaware study of viruses. Research will focus on finding links between genes and viruses in microbes.
Researchers from the University of South Florida have developed a curriculum to support high-performing students. Sixteen high schools will pilot the Advancing Coping and Engagement curriculum in ninth-grade International Baccalaureate and Advanced Placement classes.
About 77% of the estimated 3.8 million teachers in the US are female, according to results of the National Teacher and Principal Survey administered by the US Department of Education. While about 80% of teachers are white, data show the teaching force is becoming slightly more diverse, with 9% identified as Hispanic, about 7% African-American and 2% Asian.
Teachers across all subjects in two Georgia middle schools created reading groups for daily extended-learning-time periods. Students were grouped based on ability and the effort includes every adult in the school, said school leaders who presented about the program at a conference in Florida.
Some students who do not enroll in prekindergarten programs attend "crash courses" during the summer before kindergarten. One such program in Indiana offers 4- to 5-year-olds 20 half-day sessions during which they learn skills, such as counting to 100 and reciting the alphabet.
Young readers at some libraries are encouraged to extend reading with maker projects. At a Pennsylvania library, maker program coordinator Nora Peters has compiled 15 such book-based maker projects for readers, which she prints and attaches to the books.