Co-created Evaluation: identifying how games support police learning

HCI often produces improved systems through co-creation with practitioners. However, evaluation methods are primarily researcher-led (i.e. not co-created with practitioners). As part of a games-based learning evaluation, we detail a novel co-creation method that produces evaluations on how technology influences learning. Based upon educational threshold concept theories, the Tricky Topic method supported the co-creation of knowledge-based evaluation questionnaires with trainers. The evaluation involved 116 new recruit police officers from three UK police forces who participated in a randomized-control trial. The Tricky Topic method provided insights of how the game significantly increased understanding p<.001 (moderate effect size) in comparison with face-to-face training. Tricky topic breakdowns identify increased tacit understanding (e.g. empathy, attention) after games training, and decreased tacit understanding (e.g. respect) after face-to face training. Finally, further research opportunities are discussed concerning co-created evaluation for valid and relevant deconstruction of participants’ understanding that allow designers to pinpoint systems-specific learning benefits

Acoustic cavities in 2D heterostructures

Two-dimensional (2D) materials offer unique opportunities in engineering the ultrafast spatiotemporal response of composite nanomechanical structures. In this work, we report on high frequency, high quality factor (Q) 2D acoustic cavities operating in the 50–600 GHz frequency (f) range with f × Q up to 1 × 10(14). Monolayer steps and material interfaces expand cavity functionality, as demonstrated by building adjacent cavities that are isolated or strongly-coupled, as well as a frequency comb generator in MoS(2)/h-BN systems. Energy dissipation measurements in 2D cavities are compared with attenuation derived from phonon-phonon scattering rates calculated using a fully microscopic ab initio approach. Phonon lifetime calculations extended to low frequencies (<1 THz) and combined with sound propagation analysis in ultrathin plates provide a framework for designing acoustic cavities that approach their fundamental performance limit. These results provide a pathway for developing platforms employing phonon-based signal processing and for exploring the quantum nature of phonons

geopandas/geopandas: v0.14.0

Python tools for geographic dat

geopandas/geopandas: v0.14.1

Python tools for geographic dat

Capitalising on Positive Work Events by Sharing them at Home

The authors integrate existing theory on work-family integration and interpersonal capitalisation on positive work events by examining the effects of sharing positive work events with one's spouse on employee life satisfaction. A field study was conducted with 131 employees of a large Midwestern university, who completed surveys online. Participants provided accounts of their most important positive event during the prior week and indicated whether they had shared this event with their spouse. They also retrospectively rated their positive affect and life satisfaction over the course of the study. Results based on hierarchical regression analysis indicated that having shared that event with one's spouse was positively associated with positive affect and life satisfaction after controlling for personality and event characteristics. These results were corroborated in a subsample of 99 employees whose spouses provided independent reports of whether the event was shared with them. This research reveals that sharing positive events with others has unique and significant contributions to positive affect and life satisfaction. More importantly, these findings show that the interpersonal act of sharing is effective when conducted cross-domain: the act of sharing positive work events with family members increases positive affect and life satisfaction