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Chang Zhu,Geert Devos,Yifei Li 서울대학교 교육연구소 2011 Asia Pacific Education Review Vol.12 No.2
This study aims to analyze and validate the dimensions and specific features of a school culture in a Chinese context. A sample of 181 teachers from a Chinese primary and secondary school in Beijing participated in a survey that measures school organizational cultural characteristics and teacher organizational commitment and well-being as outcomes of school culture. Specific cultural characteristics of this school and their impact on teacher organizational commitment and well-being were identified. The findings provide important information for understanding a school culture in the Chinese context. It enriches the theory related to school culture and the research findings that have been identified in the Western settings.
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Diya Dou,Geert Devos,Martin Valcke 서울대학교 교육연구소 2016 Asia Pacific Education Review Vol.17 No.2
School autonomy in personnel policy is important to effective personnel management. With increased autonomy in personnel policy, principals could wield their leadership to improve teachers’ organizational commitment. However, little is known about whether the given autonomy in personnel policy meets principals’ expectation and whether and how the gap in between has an effect on teachers’ organizational commitment. This research explores the effects of autonomy gap in personnel policy, principal leadership, teachers’ self-efficacy and school contextual factors on teachers’ organizational commitment. Multilevel analysis was used. The results show the effects of autonomy gap in personnel policy differ among areas. In particular, the autonomy gap in salary was found to be a significant antecedent of teachers’ organizational commitment. The results also highlight the importance of principal leadership in this process. Principals with a stronger leadership tend to perceive generally a larger autonomy gap in personnel policy. In addition, when transformational leadership increased, its positive influence on teachers’ organizational commitment became even stronger. Implications for developing efficacious leadership and autonomy policy in personnel management were discussed.
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Leadership and decision-making practices in public versus private universities in Pakistan
A. Zulfqar,M. Valcke,G. Devos,M. Tuytens,A. Shahzad 서울대학교 교육연구소 2016 Asia Pacific Education Review Vol.17 No.1
The goal of this study is to examine differences in leadership and decision-making practices in public and private universities in Pakistan, with a focus on transformational leadership (TL) and participative decision-making (PDM). We conducted semi-structured interviews with 46 deans and heads of department from two public and two private universities in Pakistan. Our findings indicate that leadership and decision-making practices are different in public and private universities. While differences were observed in all six types of TL-behaviour, the following three approaches emerged to be crucial in both public and private universities: (1) articulating a vision, (2) fostering the acceptance of group goals, and (3) high-performance expectations. In terms of PDM, deans and heads of department in public and private universities adopt a collaborative approach. However, on a practical level this approach is limited to teacher- and student-related matters. Overall, our findings suggest that the leadership and decision-making practices in Pakistani public and private universities are transformational and participative in nature.
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Involvement of Innate Lymphoid Cells and Dendritic Cells in a Mouse Model of Chemical-induced Asthma
Pollaris Lore,Decaesteker Tatjana,Van den Broucke Sofie,Jonckheere Anne-Charlotte,Cremer Jonathan,Verbeken Erik,Maes Tania,Devos Fien C,Vande Velde Greetje,Nemery Benoit,Hoet Peter H. M.,Vanoirbeek Je 대한천식알레르기학회 2021 Allergy, Asthma & Immunology Research Vol.13 No.2
Purpose: Exposure to low concentrations of toluene diisocyanate (TDI) leads to immune-mediated chemical-induced asthma. The role of the adaptive immune system has already been thoroughly investigated; nevertheless, the involvement of innate immune cells in the pathophysiology of chemical-induced asthma is still unresolved. The aim of the study is to investigate the role of innate lymphoid cells (ILCs) and dendritic cells (DCs) in a mouse model for chemical-induced asthma. Methods: On days 1 and 8, BALB/c mice were dermally treated (20 μL/ear) with 0.5% TDI or the vehicle acetone olive oil (AOO; 2:3). On days 15, 17, 19, 22 and 24, the mice received an oropharyngeal challenge with 0.01% TDI or AOO (1:4). One day after the last challenge, airway hyperreactivity (AHR) to methacholine was assessed, followed by an evaluation of pulmonary inflammation and immune-related parameters, including the cytokine pattern in bronchoalveolar lavage fluid, lymphocyte subpopulations of the lymph nodes and their ex vivo cytokine production profile, blood immunoglobulins and DC and ILC subpopulations in the lungs. Results: Both DC and ILC2 were recruited to the lungs after multiple airway exposures to TDI, regardless of the prior dermal sensitization. However, prior dermal sensitization with TDI alone results in AHR and predominant eosinophilic airway inflammation, accompanied by a typical type 2 helper T (Th2) cytokine profile. Conclusions: TDI-induced asthma is mediated by a predominant type 2 immune response, with the involvement of adaptive Th2 cells. However, from our study we suggest that the innate ILC2 cells are important additional players in the development of TDI-induced asthma.
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