Structural biology at hard X-ray free-electron lasers is evolving rapidly beyond the experimental styles long established at storage ring sources. The comprehensive review by John Spence [IUCrJ (2017), 4, 322-339] provides magisterial oversight of recent developments.

Shape annealing, a computational design method applied to structural design, has been extended to the design of traditional and innovative three-dimensional domes that incorporate the design goals of efficiency, economy, utility, and elegance. In contrast to deterministic structural optimization methods, shape annealing, a stochastic method, uses lateral exploration to generate multiple designs...

Studies concerning parenting styles and disciplinary practices have shown a relationship between both factors and bullying involvement in adolescence. The scarce available evidence suggests that abusive disciplinary practices increase teenagers' vulnerability to abuse in school or the likelihood of them becoming abusers of their peers in the same context. However, there is a lack of knowledge a...

Online learning constitutes the most popular distance-learning method, with flexibility, accessibility, visibility, manageability and availability as its core features. However, current research indicates that its efficacy is not consistent across all learners. This study aimed to modify and extend the factors of the Technology Acceptance Model (TAM) to examine perceived satisfaction of an Arab...

Objective: Psychologists have warned about the disadvantages of overusing Internet and a new kind of addiction named Internet addiction. The present study intended to review the role of both sensation seeking (directly and indirectly, by mediation of attachment styles) and attachment styles (directly) in Internet addiction. Methods: The present research was a cross-sectional study. Statistical...

The shapes of sexually selected weapons differ widely among species, but the drivers of this diversity remain poorly understood. Existing explanations suggest weapon shapes reflect structural adaptations to different fighting styles, yet explicit tests of this hypothesis are lacking. We constructed finite element models of the horns of different rhinoceros beetle species to test whether functio...