CIMO - Artigos em Revistas Não Indexados à WoS/Scopus
URI permanente para esta coleção:
Navegar
Entradas recentes
- Fluxos de CO2 do solo num espaço verde urbano: um estudo de caso durante a estação de primavera no norte de PortugalPublication . Silva, Alan Victor; Patrício, Maria Sameiro; Feliciano, ManuelGlobally cities account for more than 70% of CO2 emissions. The potential of urban green spaces as a biotechnology to reduce the net emissions is influenced by the type of vegetation and soil management. Thus, appropriate management of urban soils plays an important role in mitigating climate change, as it affects the biological processes responsible for carbon loss or gain in the soil. The knowledge about the carbon (C) sequestration capacity of grass soils in urban green spaces is still incipient. The study of soil CO2 fluxes is essential to implement more appropriate forms of mitigation in the management of areas with this type of ground vegetation cover. Therefore, this study aimed at investigating CO2 fluxes in a lawn area located in the city of Bragança. CO2 fluxes were measured continuously at a sampling interval of 30 minutes (total number of samples 5523) using the LI-8100A system from LI-COR Biosciences®, together with monitoring of edaphoclimatic and vegetative parameters, during the last month of winter and the tree months of spring. The results showed the importance of herbaceous vegetation in reducing CO2 emissions compared to those that would result from bare soil. However, throughout the observation period, the lawn surface acted as an emitting source with an average magnitude of 1.25 ± 5.31 g C m-2 d-1. The study allowed the identification of phytovolume and soil water availability as the most determining factors in this complex process that underlies the vertical fluxes that occurring at the surface/atmosphere interface. In this sense, management practices related to the frequency and amount of water used in irrigation, as well as the height and frequency of vegetation cutting were identified as key factors on the net exchange of CO2 on these lawn surfaces.
- Esperienze estere nella gestione dei castagneti da legno - Castanicoltura da legno in PortugalloPublication . Patrício, Maria SameiroLa coltivazione dei castagno in Portogallo ha unnruolo significativo sia a livello culturale che economico, occupando una superficie che supera i 48. 000 ha con impianti da frutto, denominati "soutos", boschi cedui (4.800 ha ca.) e fustaie per la produzione di legno. Visonoattualmentecirca 10.500 ha di nuovi impianti da legno governati a fustaia in proprietà private mentre il resto delle formazioni adulte di castagno ricadono principalmente su proprietà pubbliche la cui gestione è demandata ai Servizi Forestali: alie fustaie vengono applicati turni di 50-60 anni con conseguente conversione a ceduo dopo il primo taglio di utilizzazione; nei cedui il turno è di 20-25 anni e gli interventi di diradamento consentono di selezionare nel tempo due o tre polloni per ceppaia. Nonostante tali indicazioni, vi è un'evidente carenza nella realizzazione delle cure colturali sia nelle fustaie che nei cedui. II legno di castagno è tradizionalmente molto apprezzato in Portogallo, ma la produzione nazionale è insufficiente a soddisfare la richiesta dei mercato interno e notevole è 1'importazione dalla Francia. Migliorare la qualità dei legname prodotto rappresenta quinai un'opportunità sia per ridurre 1'importazione, sia per valorizzare la filiera dei prodotti non legnosi e fornire servizi aggiuntivi, quali ad esempio lo stoccaggio dei carbonio.
- Embalagens no setor do Azeite: Desafios Atuais e InovaçõesPublication . Rodrigues, Nuno; Ferreiro, Nuno; Pereira, José Alberto; Peres, António M.;O azeite virgem, produto obtido exclusivamente por processos mecânicos, é a principal fonte de gordura da dieta mediterrânica, devido à sua composição, mas principalmente pelas suas caraterísticas sensoriais. É um alimento de elevado valor nutricional utilizado na culinária, rico em ácidos gordos monoinsaturados e outros compostos minoritários de grande importância, como os polifenóis, tocoferóis, carotenóides, esteróis e clorofilas. Como todos os alimentos, e em especial os que contêm elevado teor em gordura (no azeite ronda os 99%) está sujeito a processos de degradação, onde a luz, temperatura e oxigénio desempenham um papel fundamental nesse processo e podem afetar negativamente a sua qualidade. A degradação da qualidade é principalmente acelerada quando o azeite é armazenado a temperaturas elevadas, exposto à luz e com disponibilidade de oxigénio, ocorrendo a oxidação do azeite (oxidação lipídica).
- Predictors of the Intention to Buy Organic Products: A Quantitative and Cross-sectional Study in TunisiaPublication . Zaidi, Saida; Fernandes, António; Ribeiro, Maria IsabelOrganic farming plays a very important role in promoting sustainable agriculture by preserving ecosystems, enhancing biodiversity, and ensuring the production of healthier food. As the demand for organic products continues to rise globally, understanding the factors driving organic food consumption becomes essential for fostering sustainable consumer behavior. Tunisia, with its deep-rooted agricultural heritage and growing interest in organic and sustainable living, presents a unique case for examining these dynamics. Given the country’s ongoing economic development and urbanization, it is crucial to examine the factors influencing consumer choices regarding organic products. Thus, this study aims to analyze the factors influencing organic food consumption in Tunisia by assessing consumer attitudes, purchasing habits, and barriers to its implementation. Using a quantitative and cross-sectional approach, data were collected through a structured survey targeting a diverse sample of Tunisians that explored socio-demographic characteristics, economic constraints, motivations, and challenges of consuming organic food. Statistical analysis was applied to identify key trends and correlations. Findings reveal that 23% of respondents purchase no organic products, with supermarkets dominating distribution channels and limited availability through direct farmer sales or specialty stores. Consumer knowledge is notably deficient, with over 60% of participants demonstrating limited understanding of organic food. Regression analysis reveals that attitudes toward organic food are the strongest predictor of purchase intention, followed by health awareness, while perceived price has a negative impact on consumption. Interestingly, environmental concerns showed no significant association with purchase intention. These results underscore the need for strategies that foster positive attitudes and address price concerns to promote the implementation of organic food in Tunisia.
- Food Consumption Practices and Implications for Mycotoxin Exposure Risk: A Cross-sectional Study in Inhambane and Gaza Provinces, MozambiquePublication . Ribeiro, Maria Isabel; Mussalama, Edson; Manhiça, Agnaldo; Cabo, Paula; Venâncio, Armando; Rodrigues, Paula; Macuamule, CustódiaDiet is considered the main route of exposure to the risk of mycotoxin poisoning. Consequently, given the prevalence of mycotoxins in Mozambique, there is a need to develop studies on the population's consumption habits to implement control and mitigation strategies in a sustainable way. This quantitative and cross-sectional study aimed to report the dietary habits of the population in two provinces of Mozambique and to investigate whether province, place of residence, gender, and age were differentiating factors in dietary habits. Primary data were collected using a food frequency questionnaire adapted from a validated version for Portugal, which was modified to include foods commonly consumed in Mozambique. The data, collected by agricultural technicians between October and November 2022, refer to 300 individuals from 55 households. According to the results, 58.4% of the products consumed by families were of local origin, 40.2% were of national origin, and only 1.4% were imported. Foods such as milk, oil, fresh fish, eggs, rice, bread, sugar, onions, water, mango, and bananas are part of the daily diet of these households. In addition, it was found that the province, environment, and gender of the participants acted as differentiators of eating habits. That is, a greater quantity of foods from all food groups was consumed in the urban environment compared to the rural one. Considering the province, the consumption of fats, bread, and cereals is higher in Gaza, while, in Inhambane, dairy products, fats, fruits, and beverages are consumed in greater quantities. Finally, considering gender, it was found that women consume a greater quantity of dairy products. These results are crucial for the development of sampling strategies that assess fungal and mycotoxin contamination and estimate the risk of exposure to the studied population.
- Pastagens e forragemPublication . Pires, Jaime; Aguiar, Carlos; Moreira, NunoEste trabalho principia com uma contextualização do empreendimento do Complexo Agro-Industrial do Cachão, destacando-se a atualidade das ações e soluções técnicas então preconizadas, com destaque para a introdução de forragens em rotação com culturas herbáceas e sob coberto de espécies frutícolas. Em seguida e feito um contraponto entre o passado e o presente relativamente ao conhecimento técnico e científico disponível e a disponibilidade comercial de espécies e cultivares pratenses e forrageiras, e analisa-se a evolução do uso do solo, dos efetivos pecuários e dos encabeçamentos em Trás-os-Montes e em Portugal Continental desde 1870 a 2019. Com base nestes dados e perante os baixos efetivos pecuários e encabeçamentos atuais, similares aos ocorridos no final do seculo XIX, apontam-se linhas estratégicas e ações a implementar, com base num modelo de ordenamento cultural para Trás-os-Montes, já que a superfície exterior as explorações agrícolas, ocupada por matos e pastagens em 20 15/!9, representa 33 % da superfície territorial da região. São preconizados sistemas agro-pastoris ou agro-silvo-pastoris que integrem a utilização de superfícies exteriores e próprias das explorações agrícolas, destacando-se as principais vantagens destes sistemas. Apresenta-se por último um sistema agro-pastoril como um caso de estudo na Serra do Alvão, atualmente objeto de um projeto "Life".
- Charting the course: navigating the evolving field of research management and administration researchPublication . Santos, José M.R.C.A.; Susi, PoliAs we navigate the increasingly complex landscape of global research and innovation, the role of Research Management and Administration (RMA) professionals has become more critical than ever for enabling research excellence and ensuring the effective delivery of impactful research outcomes. Thus, this role has become not just increasingly visible but also to some extent even acknowledged by leading stakeholders (e.g. policy makers such as the European Commission). RMA professionals are the individuals and teams who, behind the scenes, enable and enhance the entire research lifecycle, from grant applications to impact realization and everything in between, including science diplomacy, science communication, and research strategy development (Agostinho et al., 2020).
- Python-based QSAR modeling protocol for antioxidant activity: a case-study using a library of di(hetero)cyclic amines or amidesPublication . Abreu, Rui M.V.; Mateus, CristianoConstructing a QSAR model involves several critical steps, including chemical structure preparation, molecular descriptor calculation and selection, and model development and validation. This study presents a comprehensive methodology for preparing QSAR models using freely open-source software tools. A detailed, stepby- step protocol outlines the entire process, from compound library preparation to statistical validation. As a case study, we developed a QSAR model to predict the antioxidant activity, specifically radical scavenging activity, of 70 di(hetero)aryl amine and amide compounds. Molecular descriptors (12,072 total) were calculated using the OCHEM platform, and PyQSAR built-in tools were used for descriptor selection and model construction. Four key descriptors (B06[C-O], Eig04_AEA(dm), JGI2, and J_Dz(p)) were selected to develop a MLR model with strong statistical performance (Q2CV = 0.8676, RSRCV = 0.3518). Internal validation showed strong predictive stability, while external validation demonstrated the model’s generalizability with a Q2EXT > 0.5. This study not only demonstrates the application of a freely open-source QSAR approach but also contributes to ongoing efforts in identifying and designing potent antioxidant agents with potential therapeutic applications. All relevant files and the detailed protocol are provided, allowing other researchers to replicate the antioxidant QSAR model and apply the methodology to develop QSAR models for other compound libraries and biological activities.
- The conundrum of managing research and development: how can research managers and administrators leverage industry practices in project management?Publication . Santos, José M.R.C.A.What is new? This short essay addresses the application of industrial project management practices to the field of research management and administration. Beyond specific Project management frameworks and methodologies widely spread in industry contexts, it outlines a set of core tools and techniques that can effectively inform the development of research management activities in this area. What was the approach? Although there is no unique blueprint for ideal research project management approaches, best practices and useful guidelines and tools can be defined to help research managers and administrators fulfil their roles. These are systematized per major project management stage, based on a review of existing literature and the author’s experience with complex research projects. What is the academic impact? The paper summarizes relevant knowledge spread over the specialized project management literature. What is the wider impact? The heterogeneity of partners, strict funder regulations, work uncertainty, and the creative nature of research and development mean that project organization and management should reflect and accommodate these specificities. The findings presented in the paper can assist research managers and administrators in formulating appropriate management strategies for research and development projects, enabling them to make better-informed decisions based on the insights provided.
- RAPIDS - Research Administration Professional IDentity Values ScalePublication . Fischer, Melinda; Santos, José M.R.C.A.; Kerridge, SimonThe RAPIDS project aims to be a significant step forward in the development and professionalization of the research administration field. The creation of a Professional Identity Values Scale for Research Administrators will provide a comprehensive understanding of the values and professional identity of RAs. This, in turn, will benefit individuals by helping them align with their peers and grow professionally, while also supporting organizations and institutions in shaping more effective professional development programs. Moreover, the scale has the potential to attract new talent to the profession, ensuring its continued growth and success. To make this project a success, we urge all members of the research administration community to participate in the survey, as your insights are critical to shaping the future of the profession. Together, we can foster a stronger understanding of the global professional identity of research administrators and ensure the continued excellence of research administration worldwide.