spiritual climate, customers’ service experience,
corporate social responsibility (CSR), corporate social performance, methodological review, literature review, research paradigms, paradigm shifts, M14, N01,
Background The coronavirus disease 2019 (COVID-19) pandemic has had a significant impact on practical activities and didactic teaching of residents and fellows. This survey aimed to propose long-term changes for ophthalmology training based on the changes experienced by trainees and their perception of new training opportunities. Methods An online survey was distributed to ophthalmology trainees in multiple countries. Descriptive statistics were used to analyse the data. Results A total of 504 analyzable responses were collected from 32 different countries. The current impact of COVID-19 pandemic was described as "severe" by most trainees (55.2%); however, the future perspective was more optimistic as demonstrated by the greater number of responses reporting a presumed "moderate" (37.3%), "mild" (14.1%) or "slight" (4.2%) long-term impact. The vast majority of trainees reported a decrease ≥50% of clinical activity (76.4%) and >75% of surgical activity (74.6%). Although an initial gap in didactic teaching has been experienced by many (55.4%), regular webbased teaching was reportedly attended by 67.7% of the respondents. A strong agreement was found regarding the worthwhile role of web-based case-presentations in clinical training (91.7%), web-based discussion of edited surgical videos (85.7%) and simulation-based practice (86.9%) in surgical training. Conclusions This survey, focusing on trainees' perspective, strongly reinforces the need to promptly include new technology-based training tools, such as web-based teaching, virtual surgical simulators, and telementoring, in long-term reorganisation of ophthalmology training to ensure its continuity and effectiveness, which would remain available even in the face of another unpredictable crisis within the health system.
This paper examines the relationship between bi-directional work–family enrichment, psychological capital, and supervisor support in promoting innovative work behavior. We hypothesized that work-to-family enrichment and family-to-work enrichment would have a positive relation with psychological capital. Further, we examined that psychological capital would mediate the relationship between (i) work-to-family enrichment and innovative work behavior, and (ii) family-to-work enrichment and innovative work behavior. We also studied the role of supervisor support as a predictor or moderator for catalyzing innovative work behavior. Data were collected through questionnaire survey from 398 service-sector employees. We analyzed the data using structural equation modeling. Building on the theoretical foundation of broaden-and-build theory, we establish that both work-to-family enrichment and family-to-work enrichment were positively related to psychological capital. Psychological capital fully mediated between bi-directional enrichment and innovative work behavior. Supervisor support was directly related to innovative work behavior. We also suggest interventions for facilitating innovative work behavior.
The structural features of turbulence at the free surface of a channel flow have been experimentally investigated. The experiments were conducted in a horizontal channel of large aspect ratio in the (depth based) Reynolds number range of 2800–8800. The results indicate that the persistent structures on the free surface can be classified as upwellings, downdrafts, and spiral eddies. Upwellings are shown to be related to the bursts originating in the sheared region at the channel bottom and the eddies are seen to be generated at the edges of the upwellings. The eddies often merge if rotating in the same direction, and form “pairs” if rotating in opposite directions—though there are occasional mergers of such counter-rotating ones. The spiral eddies decay slowly and are sometimes annihilated by fresh upwellings. The population densities and the persistence times of the various structures were measured for different flow conditions. The resulting data show that the physical parameters characterizing the structures at the interface, scale with a mix of inner (wall shear stress and viscosity) and outer variables. Measurement of the streamwise and spanwise velocities at the free-surface were made by particle imaging velocimetry (PIV) and the surface normal velocity near the free-surface estimated by continuity. The results indicate that the upwellings and spiral eddy regions would be expected to dominate scalar transport rates at high Prandtl/Schmidt numbers. The one-dimensional energy spectra of the flow field at the free-surface compare well with direct numerical simulations and show a region with −5/3 slope at low wave numbers. This experimentally confirms a previous result regarding the two-dimensionality of turbulence near the free surface, based on numerical simulations by Pan and Banerjee [Phys. Fluids 7, 1649 (1995)].
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