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A Bioregional Framework for Structuring Rural Self-Sufficiency in Dispersed Settlement Systems: The Case of Arbo, Galicia (Spain)
2026-04-21 - Lima, Ana; Milão, Susana; Viana, David; Vázquez, Jesús
Rural territories characterised by dispersed settlement systems face mounting challenges related to demographic decline, economic fragility, ecological degradation, and the erosion of local knowledge systems. In this context, rural self-sufficiency has re-emerged as a strategic objective; yet it remains inadequately operationalised within spatial planning and territorial assessment practices. This paper proposes a bioregional framework for operationalising rural self-sufficiency in dispersed territories, integrating ecological, morphological, socio-productive, cultural, and governance dimensions across multiple spatial scales. The framework is structured around a tiered system of 108 indicators, hierarchised into priority, secondary, and aspirational levels, combined with a multi-scalar territorial reading articulated through five nested frames—ranging from municipal systems to local productive units. Rather than constituting a mere checklist for immediate quantitative evaluation, the indicator system functions as a structured diagnostic universe, enabling progressive operationalisation based on data availability and governance capacity. To bridge the gap between diagnosis and action, the framework introduces 34 strategic drivers and 28 spatial artefacts, conceived as reversible and context-sensitive interventions. The framework is demonstrated through the case of Arbo (Galicia, Spain), illustrating its capacity to structure territorial diagnosis and articulate coherent pathways from analytical interpretation to strategic spatial intervention. The proposed approach contributes a replicable methodological tool for bioregional and rural planning in dispersed settlement systems. The study contributes to advancing bioregional planning by demonstrating how extensive indicator universes can be rendered operational through selective tiering and multi-scalar deployment.
A unified imputation framework for interval-censored data: comparing AFT, RSF, and DeepSurv models [comunicação oral]
2026-06-13 - Soutinho, Gustavo; Meira-Machado, Luís
Interval-censored data are common in longitudinal studies and pose challenges for time-to-event analysis. This work proposes a unified imputation-based
framework for handling interval-censored data, where latent event times are iteratively generated within the observed censoring intervals and the censoring
mechanism is handled externally through a scaled redistribution procedure. Within this framework, different predictive models—including AFT, Random
Survival Forests, and DeepSurv—can be consistently compared through an iterative imputation scheme based on pseudo-event times within the observed intervals,
followed by a common scaled redistribution procedure. Performance is assessed through simulations under varying censoring levels, interval widths, and
hazard distributions, with extensions to nonlinear effects and high-dimensional covariates. Results are further validated using real-world clinical datasets.
O papel da União Europeia na Gestão Sustentável dos Oceanos
2026-05-01 - Moreira, Fátima Castro
A proteção dos oceanos e dos ecossistemas marinhos emerge, no início do século XXI, como uma prioridade estratégica da comunidade internacional. A crise climática, a perda acelerada de biodiversidade, a acidificação dos oceanos, a sobre-exploração de recursos e a poluição difusa colocaram os mares no centro das agendas científica, jurídica e política, revelando um grau de vulnerabilidade que compromete a estabilidade ecológica global e o bem-estar das gerações presentes e futuras. O oceano deixou de ser percepcionado apenas como fonte de recursos e via de comunicação para ser reconhecido como bem jurídico essencial e elemento estruturante da segurança climática, da resiliência ecológica e do desenvolvimento sustentável.