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Workplace bullying, burnout and turnover intentions among Portuguese employees
Publication . Ribeiro, Neuza; Gomes, Daniel; Gomes, Gabriela Pedro; Ullah, Atiat; Semedo, Ana Suzete Dias; Singh, Sharda
Purpose: This study aims to broaden the understanding of the mechanisms through which workplace bullying might affect employees’ intention to leave the organisation, as well as the mediating role of burnout in the relationship between workplace bullying and turnover intention. Design/methodology/approach: The sample included 884 employees from different Portuguese organisations operating in the tertiary sector and industry. This study uses structural equation modelling to evaluate the hypothesised model. Findings: The results suggest that workplace bullying causes high levels of burnout in victims and increases their turnover intentions. The results further suggest that burnout fully mediates the effect of workplace bullying on turnover intentions. Practical implications: Organisations should work to reduce these problems in workplace environments, focusing on HRM models that prevent the precursors of workplace bullying, particularly those associated with low determination of HR practices and the emphasis on employee participation. Implementing workplace ethical guidelines as part of an annual action plan can contribute to cultivating organisational cultures that reject any form of devaluation of human worth within the organisation. Originality/value: There is little knowledge on the mediating role of burnout in the relationship between workplace bullying and turnover intention. This study answers the call for further empirical research from those who have argued that more information is needed and contributes to the growing debate on this topic and its effects on Portuguese employees. This study seeks to fill these gaps by developing a model of workplace bullying and its consequences and exploring burnout’s potential mediating role.
Workplace bullying and job burnout: the moderating role of employee voice
Publication . Ullah, Atiat; Ribeiro, Neuza
Purpose: This study aims to investigate the connection between workplace bullying and job burnout while also examining how employee voice moderates this relationship. Design/methodology/approach: The study's sample comprises 303 employees employed in the automobile sector of Pakistan. Statistical analysis was conducted using tools such as SPSS, AMOS, and the PROCESS macro. Methods like CFA and regression were utilized to assess the study hypotheses. Findings: Based on Conservation of Resource (COR) Theory, this study unveiled a positive effect of workplace bullying on employees' job burnout. Moreover, it found that employee voice moderates the association between workplace bullying and job burnout. Practical implications: The study confirmed that workplace bullying leads to increased job burnout. Furthermore, when top management considers employee voice, it reduces the impact of workplace bullying on job burnout. Therefore, it is recommended that management in automobile organizations can promote a culture that encourages employee voice to effectively lessen the effects of workplace bullying on job burnout. Originality/value: Firstly, this research pioneers the examination of workplace bullying's impact on job burnout among employees in the automobile sector. Secondly, it enhances our understanding of how employee voice affects the indirect influence of workplace bullying on job burnout. Thirdly, within an international context, this study pioneers the examination of how employee voice influences the association between workplace bullying and job burnout. Finally, this study is motivated by the increasing concern that workplace bullying leads to negative workplace experiences, adversely affecting employee well-being, and ultimately resulting in devastating long-term effects on organizations.
On the Structure of an Internal Groupoid
Publication . Martins-Ferreira, Nelson
The category of internal groupoids (in an arbitrary category) is shown to be equivalent to the full subcategory of so called involutive-2-links that are unital and associative.
Authentic leadership – a source of tacit knowledge sharing and career competence in service sector
Publication . Yasin, Raheel; Ribeiro, Neuza; Atif, Muhammad; Ali, Ayesha
Purpose: This study aimed to examine the correlation between authentic leadership and career competence, exploring the mediating roles of tacit knowledge sharing and employee service innovative behavior. Design/methodology/approach: Data were collected using convenience sampling and a time-lagged design from the Pakistani banking sector. The time-lagged design was employed to gather data at two different points in time. SPSS statistical software was used for descriptive analysis, and hypotheses were tested using Mplus. Findings: The results demonstrate that authentic leadership has a significant positive impact on tacit knowledge sharing. This knowledge sharing, in turn, positively impacts employee service innovative behavior, which subsequently enhances career competence. Furthermore, tacit knowledge sharing mediates the relationship between authentic leadership and employee service innovative behavior. Social implications: This study has social implications for organizations aiming to align their inclusive goals with societal needs. The findings can help foster a culture of knowledge sharing, thereby contributing to societal innovation. Originality/value: This study provides valuable insights into how authentic leadership contributes to career competence, thus enriching the existing literature on this topic.
Computed Tomography versus Sleep Endoscopy (DISE) to Predict the Effectiveness of Mandibular Advancement Devices in Adult Patients with Obstructive Sleep Apnea: A Protocol for Systematic Review
Publication . Cebola, Pedro; Caroça, Cristina; Donato, Helena; Campos, Ana; Dias, Sara Simões; Paço, João; Manso, Cristina
Obstructive sleep apnea is a sleep disorder with a high prevalence in the world population. The mandibular advancement device is one of the options for treating obstructive sleep apnea. Neck computed tomography and drug-induced sleep endoscopy are complementary diagnostic tests that may help predict the effectiveness of mandibular advancement devices. This study aims to analyze the best method for predicting the effectiveness of mandibular advancement devices in the therapeutic approach to obstructive sleep apnea. PubMed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), and Web of Science Core Collection databases will be comprehensively searched. We will include randomized clinical trials, non-randomized prospective or retrospective clinical studies, case controls, cohort studies, and case series. Two authors will independently conduct data extraction and assess the literature quality of the studies. The analysis of the included literature will be conducted by Revman 5.3 software. The outcomes that will be analyzed are craniofacial characteristics, cephalometric assessments, site and type of obstruction of the upper airway, mean values of the apnea–hypopnea index, and SaO2 verified in the initial and follow-up polysomnography. This study will provide reliable, evidence-based support for the clinical application of mandibular advancement devices for obstructive sleep apnea.