ObjectivesTo simulate hemodynamic changes after extraluminal compression in pulsatile tinnitus patients with a prominent transverse-sigmoid sinus junction.MethodsOne patient-specific case was reconstructed based on computed tomography venography images of a PT patient. The compression degree served as a new index in this study. Cases with 10, 20, 30, 40, 50, 60, 70, 80, and 90% of the compression degree of the control subject were constructed. Steady-state computational fluid dynamics were assessed. The wall pressure distribution, wall maximum pressure and flow pattern of (...) the PTSJ were calculated to evaluate hemodynamic differences among all cases.ResultsWith increasing compression, the wall pressure at the compression point and downstream of the PTSJ decreased but increased upstream. When the compression degree exceeded 70%, the upstream pressure increased significantly. Above 50% compression, the blood flow pattern downstream of the sigmoid sinus tended to spiral, especially after 80% compression. Beyond 60% compression, the blood flow pattern under the compression axis became more medial.ConclusionMechanical compression of PTSJ changes wall pressure and blood flow patterns. The degree of compression should be carefully observed to avoid possible complications or reoccurrence. (shrink)

This study draws on the substitutes for leadership theory to investigate the association of strengths-based leadership with employee turnover intention and the mediating role of felt obligation for constructive change and the moderating role of job control in the linkage. Data were collected using a three-wave survey from a sample of 317 employees working in a variety of enterprises in China. The multiple regression analyses with bootstrapping procedure were utilized to examine the proposed hypotheses. The results indicate that strengths-based leadership (...) negatively relates to turnover intention and felt obligation for constructive change partially mediates the relationship between strengths-based leadership and turnover intention. Furthermore, job control, acting as a substitute for strengths-based leadership, negatively moderates the indirect relationship between strengths-based leadership and turnover intention via felt obligation for constructive change. This study contributes to the literature of strengths-based leadership and the substitutes for leadership theory by enhancing our understanding of the effect of job control. (shrink)

The purpose of this paper is to investigate the changes in core self-evaluation scores among Chinese employees during 2010–2019. We conducted a cross-temporal meta-analysis including 50 studies to evaluate the relationship between the year of data collection and levels of CSE. We found that correlations between levels of CSE and year of data collection were strong and positive. Regression results showed that the year of data collection could predict the CSE score when the mean sample age and sex ratio were (...) controlled. In addition, CSE scores were positively related to GDP per capita and negatively related to the unemployment rate. (shrink)