Cookies
Usamos cookies para melhorar nosso site e a sua experiência. Ao continuar a navegar no site, você aceita a nossa política de cookies. Ver mais
Aceitar Rejeitar
  • Menu
Tópicos
de interesse
Detalhes

Detalhes

007
Publicações

2020

The multi-period vehicle routing problem with refueling decisions: Traveling further to decrease fuel cost?

Autores
Neves Moreira, F; Amorim Lopes, M; Amorim, P;

Publicação
Transportation Research Part E: Logistics and Transportation Review

Abstract

2020

Systems, economics, and neoliberal politics: Theories to understand missed nursing care

Autores
Jones, T; Drach Zahavy, A; Amorim Lopes, M; Willis, E;

Publicação
Nursing and Health Sciences

Abstract
The phenomenon of missed nursing care is endemic across all sectors. Nurse leaders have drawn attention to the implications of missed care for patient outcomes, with calls to develop clear political, methodological, and theoretical approaches. As part of this call, we describe three structural theories that inform frameworks of missed care: systems theory, economic theory, and neoliberal politics. The final section provides commentary on the strengths and limitations of these three theories, in the light of structuration theory and calls to balance this research agenda by reinstating nurse agency and examining the interactions between nurses as agents and the health systems as structures. The paper argues that a better understanding of variations in structure–agency interaction across the healthcare system might lead to more effective interventions at strategic leverage points. © 2020 John Wiley & Sons Australia, Ltd

2019

Advancing the science of unfinished nursing care: Exploring the benefits of cross-disciplinary knowledge exchange, knowledge integration and transdisciplinarity

Autores
Jones, T; Willis, E; Amorim Lopes, M; Drach Zahavy, A;

Publicação
Journal of Advanced Nursing

Abstract
Aims: The aims of this paper are to explore the role of cross-disciplinary knowledge exchange and integration in advancing the science of unfinished nursing care and to offer preliminary guidance for theory development activities for this growing international community of scholars. Background: Unfinished nursing care, also known as missed care or rationed care is a highly prevalent problem with negative consequences for patients, nurses and healthcare organizations around the world. It presents as a ‘wicked’ sustainability problem resulting from structural obstacles to effective resource allocation that have been resistant to conventional solutions. Research activity related to this problem is on the rise internationally but is hindered by inconsistencies in conceptualizations of the problem and lack of robust theory development around the phenomenon. A unified conceptual framework is needed to focus scholarly activities and facilitate advancement of a robust science of unfinished nursing care. Design: Discussion paper. Data Sources: This discussion paper is based on our own experiences in international and interdisciplinary research partnerships related to unfinished nursing care. These experiences are placed in the context of both classic and current literature related to the evolution of scientific knowledge. Implications for Nursing: The problem of unfinished nursing care crosses multiple scientific disciplines. It is imperative that the community of scholars interested in solving this wicked problem engage in meaningful cross-disciplinary knowledge integration and move towards transdisciplinarity. Conclusion: Metatheorizing guided by structuration theory should be considered as a strategy to promote transdiciplinarity around the problem of unfinished nursing care. © 2019 John Wiley & Sons Ltd

2019

From problem structuring to optimization: A multi-methodological framework to assist the planning of medical training

Autores
Cardoso Grilo, T; Monteiro, M; Oliveira, MD; Amorim Lopes, M; Barbosa Povoa, A;

Publicação
European Journal of Operational Research

Abstract
Medical training is an intricate and long process, which is compulsory to medical practice and often lasts up to twelve years for some specialties. Health stakeholders recognise that an adequate planning is crucial for health systems to deliver necessary care services. However, proper planning needs to account for complexity related with the setting of medical school vacancies and of residency programs, which are highly influenced by multiple stakeholders with diverse perspectives and views, as well as by the specificities of medical training. Aiming at building comprehensive models with a potential to assist health decision-makers, this article develops a multi-methodological framework to assist the planning of medical training under such a complex environment. It combines the structuring of the objectives and specificities of the medical training problem with a Soft Systems Methodology through the CATWOE (Customer, Actor, Transformation, Weltanschauung, Owner, Environment) approach, and the formulation of a Mixed Integer Linear Programming model that considers all relevant aspects. Considering the specificities of countries based on a National Health Service structure, a multi-objective planning model emerges, informing on how many vacancies should be opened/closed per year in medical schools and in each specialty. This model aims at (i) minimizing imbalances between medical demand and supply; (ii) minimizing costs; and (iii) maximizing equity across medical specialties. A case study in Portugal is explored so as to illustrate the applicability of the proposed multi-methodology, showing the relevance of proper structuring for planning models having the potential to inform health decision-makers and planners in practice. © 2018 Elsevier B.V.

2019

Physician Emigration: Should they Stay or Should they Go? A Policy Analysis

Autores
Amorim Lopes, M; Almeida, A; Almada Lobo, B;

Publicação
Computational Economics

Abstract
Physician emigration can either function as an escape valve to help the health labour market clear from a supply surplus, or aggravate the problem further in case of a shortage. Either way, policy-makers should be particularly aware and devise policies to minimize the occurrence of an imbalance in the physician workforce, which may require physician retention policies if barriers to entry and other market rigidities can not be removed. To this purpose we have developed an agent-based computational economics model to analyse physician emigration, and have used it to study the impact of potential short- and long-term retention policies. As a real case study we have calibrated it with data from Portugal, which features a very particular health system with many rigidities. Results show that all policies are capable of increasing the workforce size, but not all reduce emigration. Also, the effect of return migration is non-negligible, and may substantially offset the impact on the workforce size. Furthermore, the welfare impact of the policies varies considerably. Whether policies to retain physicians should be enacted or whether policy makers should let physicians go will depend on the type of imbalance present in the health system. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.

Teses
supervisionadas

2017

Melhoria da taxa de disponibilidade de uma linha de produção

Autor
Bernardo Santos

Instituição
UP-FEUP

2017

Development of a manufacturing strategy on the shop-floor

Autor
Ricardo Campos Maia

Instituição
UP-FEUP

2017

Optimização de layouts e de fluxos produtivos

Autor
Catarina Oliva Teles

Instituição
UP-FEUP

2017

Otimização de rotas de distribuição: o efeito do combustível

Autor
André Cruz Coelho

Instituição
UP-FEUP

2017

Implementação de Total Productive Maintenance (TPM)

Autor
Catarina Sena Esteves

Instituição
UP-FEUP