Repositório Comum
Entradas recentes
To stay or not to stay: when mental health becomes the breaking point of nursing sustainability in Portugal
Publication . Pitacho, Liliana; Cordeiro, João
Purpose – The sustainability of the nursing workforce in Portugal is increasingly threatened by persistent occupational stress and burnout, which contribute to professional withdrawal and workforce instability. This study examines the influence of occupational stress on nurses’ turnover intentions at three levels – organizational, professional and international – and analyses the mediating role of burnout in these relationships. Design/methodology/approach – A quantitative, cross-sectional and correlational research design was employed. Data were collected from 233 nurses working in Portugal using an online questionnaire. Statistical analyses were conducted using IBM SPSS Statistics (v.29) and included descriptive statistics, correlation and multiple regression analyses, exploratory factor analyses for newly developed measures and mediation analysis using Hayes’ PROCESS macro with 5,000 bootstrap resamples. Findings – The results revealed high levels of occupational stress and burnout among Portuguese nurses. Work overload and family-related strain emerged as the strongest predictors of perceived occupational stress, whereas career dissatisfaction and strained relationship supervisory where the strongest predictors of burnout. Occupational stress predicted intentions to leave the organization, the profession and the country. Burnout partially mediated the relationship between occupational stress and both organizational and professional turnover intentions, whereas emotional exhaustion fully mediated the relationship between occupational stress and migration intentions. Research limitations/implications – The cross-sectional design limits causal inference and the use of snowball sampling may affect the representativeness of the sample. Future research should employ longitudinal designs and broader samples to better capture the dynamic evolution of stress, burnout and withdrawal intentions among healthcare professionals. Practical implications – The findings highlight the need for organizational and policy interventions aimed at improving nurses’ psychosocial working conditions, particularly by reducing excessive workload, strengthening supportive leadership and improving career development opportunities.Social implications – Addressing stress and burnout among nurses is essential to safeguard the sustainability of healthcare systems. Promoting nurses’ psychological well-being contributes not only to workforce retention but also to the quality and continuity of patient care in increasingly pressured healthcare environments. Originality/value – By distinguishing among organizational turnover, professional turnover and migration intentions, this study provides a more comprehensive understanding of the psychosocial mechanisms through which occupational stress contributes to workforce attrition. The findings extend current knowledge on burnout as a mediating mechanism and offer evidence to inform retention strategies that support long-term sustainability of the nursing workforce in healthcare systems.
Modelling dynamic maintenance priorities in warships : a data driven approach
Publication . Lampreia, Suzana Paula Gomes Fernando da Silva Lampreia; Vairinhos, Valter Martins; Lobo, Victor José de Almeida e Sousa
This research was developed in the scientific field of Military Sciences with a focus on technologies, or more specifically in Maintenance Management and Data Management of naval military ship equipment. The proposed theme of the thesis is Modelling dynamic maintenance priorities in warships – a data driven approach. This research presents: the object and objectives of the study, the justification of the topic under investigation, a state of the art on applied theories, methods and methodologies that can be applied in achieving the objectives of the thesis. This thesis aimed to develop a methodology that brings together several data sources, the FMECA, specifically modified to integrate equipment condition monitoring data and the threat state, FMECA-H-CM, which serves as a decision support system for maintenance on military ships. Within the scope of the conception and development of this concept, the database structure that feeds the FMECA-H-CM and factors related to cybersecurity were taken into consideration. With the results of the FMECA-H-CM, it was possible to improve its performance using the contribution of other experts, humanizing the responses to the method. Finally, a method and a software language were developed to demonstrate the possibility of defining automatically the risk, the priority of maintenance activities for a diesel propulsion engine and also give options of maintenance. On that way it is suggested whether it is appropriate to perform maintenance activities on other equipment related to the first if its condition determines it and this is the final option taken by maintenance managers. With the developed methodology, it may be feasible to decide on ship missions based on risk, so that decision-making bodies know the performance status of equipment and systems, indirectly revealing the degree of success of a mission on military ships.
O Impacto das Redes Sociais na Autoimagem e no Bem-Estar Psicológico dos Adolescentes: Uma estratégia de Intervenção em Saúde Mental
Publication . Soares, Maria do Rosário de Sousa
Análise e Implementação de um Sistema IDS:IPS
Publication . Rafael Moreira; Helder Pinto
A Cibersegurança tem-se tornado um foco de atenção a nível global, uma vez que é um dos pilares fundamentais da era digital. Num mundo progressivamente mais interligado, os ataques informáticos às redes têm-se tornado mais sofisticados, o que exige a criação de soluções mais robustas e eficazes que sejam capazes de proteger os sistemas informáticos e os dados. Para colmatar essa necessidade crescente, o objetivo deste trabalho é analisar e implementar um sistema de segurança eficaz para redes empresariais capaz de monitorizar, detetar e mitigar intrusões. A solução apresentada será uma solução híbrida recorrendo a duas tecnologias open-source. A tecnologia Wazuh, um Sistema de Gestão de Eventos e Informações de Segurança (SIEM, do inglês, Security Information and Event Management) que incorpora as funções de Sistema de Deteção de Intrusões (IDS, do inglês, Intrusion Detection System) e de Sistema de Prevenção de Intrusões (IPS, do inglês, Intrusion Prevention System), focada na análise de logs e resposta a incidentes, e a Suricata, que analisa o tráfego de rede em tempo real. Esta análise e implementação permitirão testar e avaliar a eficácia do sistema de IDS/IPS implementado em cenários reais, com foco em testar a capacidade de detetar ataques e reduzir falsos positivos.
Intervenções de Enfermagem Especializada em Saúde Mental Perinatal
Publication . Augusto, Maria Francisca da Costa