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Integration of unmanned aircraft systems in general air traffic in Portugal
Publication . Lourenço, João Paulo Ferreira; Páscoa, Carlos Jorge Ramos
bstract
The integration of Unmanned Aircraft Systems (UAS) into General Air Traffic (GAT)
presents complex regulatory, operational, and technological challenges. This study aims to
design a conceptual ecosystem model to facilitate UAS integration into Portuguese airspace,
ensuring alignment with international best practices. The research methodology combined
documentary analysis of international and national literature and semi-structured interviews
conducted with subject matter experts. The interviews focused on system, infrastructure, and
airspace dimensions.
This analysis identified significant gaps in Portugal’s current regulatory strategies, digital
platforms, and airspace management, despite partial alignment with European Union
Aviation Safety Agency regulations. Based on these findings, a phased ecosystem model is
proposed, beginning with the implementation of test zones for U-Space implementation in
Lisbon, Porto, Faro, and Funchal, and later expanding to support Urban Air Mobility services
nationwide.
The study concludes that the successful integration of UAS into GAT requires a
centralized, automated coordination system, strategic infrastructure investment, and formal
airspace designation. The proposed model offers a pragmatic and scalable roadmap to
overcome existing barriers, contributing to academic knowledge and providing actionable
recommendations for policymakers and aviation stakeholders.
Integrating additive manufacturing to military maintenance
Publication . Rautio, Samu; Valtonen, Ilari; Lehtonen, Juha-Matti
The aim of this study is to investigate what kind of conceptual model should form the core
for simulation model studying Additive Manufacturing (AM) in the military logistics supply
chain. The focus of the study is on the Armoured Personnel Carrier (APC) vehicles spare
parts in the mechanized battalion. In the study, the conceptual model of the key functions
of a mechanized battalion's two-level maintenance system with AM support was modeled.
Polymeric printing was employed for field- and depot-level maintenance, and metal printing
was utilized for depot-level maintenance. We found that the conceptual model is an important
phase in the simulation when designing a system where the number of 3D printers at two
maintenance levels supports military logistics. We found that system dynamics depend on the
intensity of battles (spare part demand), maintenance concept, and the size of the parts to be
3D-printed. It is also clear that the original material of spare parts affects the ability of AM to
support the maintenance system, which may change the inventory planning.
The influence of human security on the security of maritime spaces : the case of the South Atlantic
Publication . Alexandre, António Gonçalves
Kenneth Waltz claimed at the end of the 1970s that, given the anarchic order in force,
security was the ultimate goal of states and that they could only pursue other targets when their
survival was assured. However, at the end of the Cold War, there was an opening up in the way security was interpreted. Barry Buzan, Ole Wæver and Jaap de Wilde were among the leading theorists who questioned the primacy of the state in conceptualising security. And the fact is that its extension to fields beyond the military-political has led to concepts such as human security and maritimesecurity emerging in the lexicon of international relations.
Following a qualitative research strategy and inductive reasoning, this article analyses
illegal, unreported and unregulated fishing in the South Atlantic on the basis of a case study,
since its growth over the last century has elevated it to the status of one of the most significant
threats to the security and well-being of the region's populations. The conclusions show that
the growing scarcity of fish stocks can undermine the human security of populations, leading
them to engage in illegal activities that can compromise maritime security in the South Atlantic.
Organizational culture in police corporations : a design guided by institutional values
Publication . Fernandes, Sérgio Henrique Soares; Freitas, Mónica; IUM
Institutional values are an essential part of organizational culture, especially in police
organizations, given their specific characteristics, such as conservatism, traditionalism, isolation,
etc. Given this context, the general objective of this article was to outline the international culture
of the Police based on each of the institutional values of the corporations investigated. The
organizational values of the Police were demarcated as the object of study, being limited to the
"street police", that is, those that exercise the ostensible character of preserving public order.
The research had an exploratory character, of a qualitative nature, based on bibliographic and
documentary analysis. An inductive reasoning was followed with an analysis of the values of 12
selected corporations in 11 countries. The challenge was to answer the central question - which
current institutional values are representative of the culture in police organizations around the
world? The main results showed that the organizational culture is made up of core institutional
values such as commitment, loyalty, honor, respect, discipline, spirit of sacrifice and courage, as
well as adjacent values such as professionalism, respect for human rights, quality, transparency,
humanity, impartiality and justice.
Variables related to perceived stress and resilience among international migrants: a multicenter study (AFFAIR Project)
Publication . Barreto, Mayckel da Silva; Barbieri-Figueiredo, Maria do Céu; Garcia-Padilla, Francisca Maria; Saenz Mendia, Raquel; Silva, Renan Alves; Sá, Florinda Laura Ferreira Rodrigues Galinha De; Almeida, Camila Aparecida Pinheiro Landim; Campos, Maria Joana; Lise, Fernanda; Marcon, Sonia Silva
ABSTRACT Objective: To identify variables related to perceived stress and resilience of international migrants. Method: Multicenter, observational, cross-sectional study carried out with 403 migrants residing in Brazil, Spain, or Portugal. The following instruments were used to collect data: Perceived Stress Scale and Resilience Scale. Student's t-test and analysis of variance were applied in the analysis. Results: Perceived stress was related to: living in Brazil or Portugal; shorter stay in the host country; being black or brown; and having no religion. Greater resilience was related to: not being divorced; having less education and lower family income; being from developing countries; living in Spain; and having a religion. Conclusion: Aspects such as host and origin country, skin color, income, marital status, education, length of stay in the host country, and religion are related to the level of stress and/or resilience of migrants. Knowing this profile is useful for developing public integration policies and interventions that seek to reduce stress and improve resilience.