Stay the course

Manitoba Women and Higher Education: Momentum to Stay the Course

Unidirectional adsorbate motion on a high-symmetry surface: "walking" molecules can stay the course.

Step edges and low-symmetry faces of metal crystals can restrict the diffusive motion of adsorbates, yet they offer little flexibility with regards to the location and/or direction of the guided motion. We show inherently unidirectional motion of an organic molecule on a high-symmetry thermodynamic-equilibrium metal surface [Cu(111)]. Sequential placement of the substrate linkers of 9,10-dithio...

To stay or not to stay? That is the question.

Behavioral ecology. Songbirds check compass against sunset to stay on course.

Let the bar-coding begin.The Alfred P. Sloan Foundation has given a $669,000 grant to a consortium of herbaria, museums, and research institutes to jump-start the Barcode Life Initiative, which aims to create an online catalog of the world’s flora and fauna. Each “bar code” will be a short DNA sequence taken from a mitochondrial gene. The sequences define individual species and will help resear...

Stage Predicting Student Stay Time Length on Webpage of Online Course Based on Grey Models

To provide adaptive learning, an e-learning system needs to gather information about what student state is while the student learns online course. A student state index is the length of time the student stays on a webpage of online course. By predicting student’s stay time length, the e-learning system has potential to dynamically tailor the learning content to the students. A literature review...