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- Fine scale behaviour of Labrus bergylta in the National Park Illas Atlánticas of Galicia (NW Spain)Publication . Brand, Lukas; Fernández, Alexandre Alonso; Abecasis, DavidUnderstanding the spatial ecology and behaviour of coastal fishes is critical for the design of marine protected areas (MPAs). Acoustic telemetry, combined with advanced modelling approaches, provides high-resolution insights into residency, activity, and habitat use, key information for a proper design of spatial protection measures. In this study, we acoustically tracked fifteen Labrus bergylta individuals over more than two years within the Atlantic Islands of Galicia National Park, generating over 4.5 million detections. After filtering and excluding fate dates, valid trajectories were reconstructed using Continuous-Time Correlated Random Walk models, yielding more than 3.1 million estimated positions. Residency analyses revealed that 67% (10) of individuals exhibited very high site fidelity (IWR ≥ 0.95), while others showed intermediate fidelity with occasional excursions beyond the array. Only one fish displayed virtually no residency. Estimated activity spaces ranged from 6,870 to 23,120 m², with daytime ranges significantly larger than at night and peaking in late spring–summer, reflecting reproductive activity. Swimming speed was positively related to bottom temperature and showed seasonal variation as well as crepuscular peaks. Hidden Markov Models distinguished two behavioural states (resting vs. active), with an average activity budget of 56.5% resting and 43.5% active. State transitions were influenced by diel cycle and habitat type, though with strong inter-individual variability. Revisitation patterns revealed long-term fidelity to a small number of discrete core areas, located on rocky substrates and often shared across day and night. Overall, L. bergylta exhibited a dual movement strategy of strong site fidelity interspersed with occasional exploratory excursions. These findings confirm the importance of structurally complex hard-bottom habitats as persistent refuges and support the effectiveness of fixed spatial protections. By linking fine-scale behaviour with habitat use over extended timescales, this study advances the ecological understanding of temperate reef fishes and provides robust evidence to inform the management and evaluation of coastal MPAs.
- A dinuclear oxoperoxomolybdenum(VI) Complex, [Mo2O6(OH)2 (Pyridine Oxide Tetrazolate) 2], displaying the {MoO(O2)(OH)2MoO(O2)}0 core, and its catalytic performance in olefin epoxidationPublication . Nunes, Martinique S.; Neves, Patrícia; Gomes, Ana C.; Mendes, Ricardo F.; Paz, Filipe A. Almeida; D. Lopes, André; Silva, José Paulo da; Pillinger, Martyn; Valente, Anabela A.; Gonçalves, Isabel S.The dinuclear oxoperoxomolybdenum(VI) complex [Mo2O6(OH)2(pto)2] (1), containing a rare example of a hydroxo-bridged {MoO(O2) (μ-OH)2MoO(O2)}0 core, has been synthesized via the reaction of MoO3 with H2O2 and 5-(2-pyridyl-1-oxide)tetrazole (Hpto) and characterized by elemental analysis and ICP-OES, infrared and Raman spectroscopies, single crystal X-ray diffraction, nuclear magnetic resonance, and mass spectrometry. Compound 1 is an effective homogeneous catalyst for olefin epoxidation. The type of oxidant, namely tert-butyl hydroperoxide (TBHP) or H2O2, influences the catalytic performance. For cis-cyclooctene epoxidation, 1/TBHP led to 100% conversion after 4 h at 70 °C, and 1/H2O2 led to 80% conversion after 24 h at 70 °C. Catalyst recycling is feasible using an ionic liquid solvent with high affinity for the catalyst, and product separation via an extraction process. The catalytic potential of 1 was further explored for the chemical valorization of biomass-derived fatty acid methyl esters (FAMEs), namely C18-unsaturated methyl oleate and methyl linoleate derived from vegetable oils. The reaction of FAMEs/TBHP gave mainly epoxidized FAMEs (>97% selectivity at high conversions of 97–100%, at 70 °C). This catalyst is a rare example of a dinuclear organo-oxomolybdenum(VI) compound with the ability to epoxidize FAMEs.
- Feature papers in biochemPublication . Aureliano, Manuel; Ma, BuyongBiochemistry, or the chemistry of life, is an interdisciplinary science that uses strategies and methods from all exact and natural sciences. In that sense, Biochemistry is a discipline known to be challenging for students, typically due to the extent and complexity of the content [1]. However, in the last 10 years, at least fifteen Nobel Prizes in Chemistry, Physiology and Medicine have been awarded in the field and/or for applications of Biochemistry, which reflects the importance of this area of knowledge in contemporary societies [2–7]. Biochemistry connects essential metal ions such as Mg2+, Ca2+, Na+ and Fe2+, and organic compounds, such as nucleic acids, sugars, lipids and proteins, to make biological systems possible, representing a unique platform for interdisciplinary collaborations in teaching and in research [8,9]. Moreover, in addition to biomolecules (proteins, nucleic acids, sugars and lipids), small molecules are necessary for cellular homeostasis, for example, carbonate ions and phosphate ions, responsible for stabilizing physiological pH (close to 7.0) or antioxidants that prevent the effects of cellular stress, as well as due to environmental pollutants, such as metals and/or microplastics [10–12].
- Otimização tecnológica para a gestão inteligente dos recursos energéticos numa unidade hoteleira no AlgarvePublication . Figueiredo, António Miguel Barradas; Sequeira, Cláudia Dias; Silva, Manuela Moreira daA eficiência energética e a sustentabilidade são hoje fatores críticos para o setor do turismo, exigindo soluções inovadoras que conciliem conforto, competitividade e responsabilidade ambiental. Neste contexto, a presente dissertação centra-se na gestão de energia, na monitorização contínua e na otimização de recursos energéticos numa unidade hoteleira de grande dimensão no Algarve, tendo como tema central a aplicação dos conceitos da indústria 4.0 e da inteligência artificial para promover eficiências energética e hídrica e apoiar a manutenção preditiva. O estudo analisa três anos de dados de eletricidade, água e gás, correlacionados com variáveis operacionais como ocupação e sazonalidade, aplicando modelos inteligentes para prever consumos, identificar anomalias e quantificar desvios operacionais. A integração da indústria 4.0 com algoritmos de inteligência artificial revela-se decisiva para transformar grandes volumes de dados em informação estratégica, permitindo não apenas antecipar falhas e otimizar ciclos de manutenção, mas também reduzir de forma consistente a pegada carbónica associada às operações hoteleiras. A monitorização contínua dos consumos de eletricidade, água e gás, quando aliada a modelos preditivos, possibilita identificar padrões de desperdício e implementar medidas corretivas em tempo real, assegurando que os recursos são utilizados de forma mais eficiente. Neste contexto, os gráficos de controlo assumem um papel central como ferramentas de apoio à decisão, uma vez que permitem visualizar desvios face ao comportamento esperado, quantificar o erro relativo diário e estabelecer limites de alerta para consumos anómalos. A utilização destas ferramentas não só reforça a capacidade de diagnóstico operacional, como também contribui para a definição de estratégias de mitigação alinhadas com os objetivos de neutralidade carbónica. Assim, a aplicação integrada destas metodologias transforma o hotel numa infraestrutura inteligente e resiliente, capaz de responder dinamicamente às exigências de sustentabilidade, eficiência e rentabilidade, ao mesmo tempo que se posiciona como referência no setor turístico pela sua gestão responsável dos recursos energéticos e ambientais.
- Approaches to personal transformation in tourism researchPublication . Zhang, Xiaoyu (Nancy); Scott, Noel; Campos, Ana CláudiaThe study of tourism transformation is evolving with five different research streams identifiable, studying personal transformation, social transformation, transformative service design, and transformation related to destinations or tourism as a whole. This paper examines the evolution of these five approaches and contrasts their disciplines, theory and assumptions through a review of 310 journal articles. Each of these five approaches views the ‘self’ as the object that is transformed with variations within them as to what aspects of the self-change. The key issue then is how the self is interrelated with the ‘triggers’ of transformation. In this review, three triggers commonly identified (meaning, emotion, and reflection) are examined in detail. Understanding how personal transformation occurs is vital as topics, such as experience design, transformative tourism services and societal transformation are based on this.