Formative research identifying message strategies for a campus bicycle safety campaign using self-determination theory and the social norms approach.

This formative study investigates the utility of the social norms approach (SNA) and self-determination theory (SDT) in framing safe bicycling messages with the goal of increasing intention to use bicycle lanes on a university campus. In Study 1, observational data showed that the majority of campus bicyclists did not use designated bike lanes while cycling; thus, intention to use bicycle lanes was chosen as the dependent variable for Study 2. Survey data (n = 168) collected from college students measured SNA and SDT constructs related to intention to use bicycle lanes, including descriptive norms, injunctive norms, autonomy, competence, and relatedness.

Variability Timescale and Spectral Index of Sgr A* in the Near Infrared: Approximate Bayesian Computation Analysis of the Variability of the Closest Supermassive Black Hole.

Sagittarius A* (Sgr A*) is the variable radio, near-infrared (NIR), and X-ray source associated with accretion onto the Galactic center black hole. We present an analysis of the most comprehensive NIR variability data set of Sgr A* to date: eight 24 hr epochs of continuous monitoring of Sgr A* at 4.5 m with the IRAC instrument on the , 93 epochs of 2.

Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1.

One aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per cent that of the Sun, located 12 parsecs away. The transiting configuration of these planets, combined with the Jupiter-like size of their host star-named TRAPPIST-1-makes possible in-depth studies of their atmospheric properties with present-day and future astronomical facilities.