Browsing by Author "Oliveira, Pedro"
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- Aplicação dos Sistemas de Informação Geográfica na Gestão da Água: o caso do aproveitamento hidroagrícola do caiaPublication . Oliveira, Pedro; Perdigão, António; Morgado, Paulo; Rocha, JorgeA agricultura de regadio encontra-se em grande expansão dentro do sector agrícola Português. O aumento da eficiência da utilização deste recurso passa pela melhoria do acompanhamento da utilização da água a vários níveis entre os quais, os Aproveitamentos Hidroagrícolas. O elevado volume de informação disponível neste sector carece de um sistema de gestão de dados espaciais a nível local e regional. Foi desenvolvido o Sistema de Informação Geográfica do Aproveitamento Hidroagrícola do Caia (SIGAHC), inserido no âmbito do programa INTERREG II C (Ordenamento do Território e Luta contra a Seca), medida 2 – Reforço e optimização do uso da Água na Agricultura, de forma a dotar a Associação de Regantes do Caia de uma ferramenta de análise para o apoio à gestão. O SIGAHC tem por objectivo monitorizar a evolução das culturas no perímetro de rega, a tecnologia de rega aplicada e o consumo de água associado, através da realização de análises de consumo em função do tipo de solo, cultura e área. O recurso às técnicas de Detecção Remota permite validar as culturas regadas realizadas no perímetro, nas áreas excluídas, nas áreas fora do perímetro (regantes a título precário) e na zona da albufeira. A interligação entre o SIGAHC e um Sistema de Gestão de Base de Dados (SGBD) é fundamental para que se possa fazer um acompanhamento do perímetro de rega ao nível da parcela cultural, mantendo constantemente a informação cartográfica e tabular actualizada. O conhecimento espacial e temporal da utilização dos recursos: água e solo, ao nível da parcela cultural, faz do SIGAHC, juntamente com o SGBD, uma ferramenta de controlo para a gestão do perímetro de rega.
- Building a prosodic profile of European Portuguese varieties: the challenge of mapping intonation and rythmPublication . Cruz, Marisa; Oliveira, Pedro; Palma, Pedro; Neto, Bruno; Frota, SóniaIn the present paper we explore a methodology to map prosodic variation in Portuguese, namely intonation and rhythm, which goes beyond the traditional approaches used to represent segmental, lexical or syntactic variation. To find the most adequate mapping method for intonation and rhythm, we tested spatial interaction models for the representation of nuclear contours, and spatial interpolation methods for rhythmic distinctions across varieties. Our results show a non-contiguous distribution of prosodic features, thus not matching the regional areas previously defined on the basis of segmental, lexical or syntactic variation. These results, together with those of previous studies across varieties of other languages, provide growing evidence that the distribution of prosodic features tends to be independent of geography, unlike non-prosodic variation.
- Burnout and dropout intention in medical students: the protective role of academic engagementPublication . Abreu Alves, Sara; Sinval, Jorge; Lucas Neto, Lia; Marôco, João; Ferreira, António Gonçalves; Oliveira, PedroIntroduction: The influence of burnout, academic engagement, and their interaction in dropout intention among medical students should be further studied. Current research shows its consequences are relevant, however, there is little understanding on burnout and academic engagement moderation in dropout intention. The current study tested a model that relates the effects of coping strategies, social support satisfaction, general distress on academic engagement, burnout, and dropout intention, on medical students. Methods: Through an online survey a non-probabilistic sample of one Medical Faculty's 1st- and 2nd-year students was recruited. Cross-sectional data were collected using psychometric instruments (Maslach Burnout Inventory - Student Survey, Social Support Satisfaction Scale for College Students, Brief COPE Scale for College Students, University Student Engagement Inventory, and Depression, Anxiety and Stress Scale), sociodemographic and academic variables, and analyzed using structural equation modeling. Results: 532 students (76% response rate) enrolled in the study. Latent variables structural model presented a satisfactory fit to the data and confirmed the expected negative path between burnout and dropout intention (βDI<-SB=0.430; p<.001) and the latent moderation burnout x engagement (βDI<-SB*SE=-0.218; p<.001). Conclusion: Academic engagement attenuates the impact of burnout on dropout intention, working as a protective factor. Social support satisfaction and adaptive coping are associated with increased levels of academic engagement, and general distress and maladaptive coping are associated with burnout. Medical Schools should develop interventions to prevent dropout intention, tackle students' stress and academic challenges, and develop their academic engagement levels.
- Correlates of burnout and dropout intentions in medical students: a cross-sectional studyPublication . Sinval, Jorge; Oliveira, Pedro; Novais, Filipa; Almeida, Carla Maria; Telles-Correia, DiogoBackground: Burnout is a pervasive issue among medical students, exhibiting a high prevalence that jeopardizes their academic success and may also predispose them to more severe affective disorders such as depression. This study aims to explore the complex relationships between psychological capital (PsyCap), general social support, educational satisfaction, and burnout, and how these factors collectively influence dropout intentions. Methods: A non-probabilistic convenience sample was collected through an online survey from first- and second- year medical students at a Faculty of Medicine in Portugal. The survey employed psychometric instruments to measure burnout (BAT-12), social support (F-SozU K-6), PsyCap (CPC-12R), satisfaction with education, and dropout intentions (Screening Instrument for Students At-Risk of Dropping Out). Structural equation modeling was applied to analyze the data from 351 participants. Results: The model demonstrated a significant positive association between burnout and dropout intentions (̂ β = 0.37; p < 0.001), underscoring burnout as a direct correlate of dropout intentions alongside educational satis- faction (̂ β = 0.25; p = 0.003) and PsyCap (̂ β = 0.22; p = 0.005). Higher social support is associated with reduced burnout (̂ β = 0.28; p < 0.001) and increased educational satisfaction (̂ β = 0.22; p = 0.002). Limitations: The non-probabilistic sampling method prevents the generalization of the findings. The cross- sectional data do not permit the inference of temporal relationships between the studied variables. Conclusions: These findings emphasize the importance that burnout may have on dropout intentions, and contribute to the understanding of affective syndromes such as burnout in educational settings.
- Desenvolvimento de um Sistema de Apoio à Gestão da Informação Geográfica no Aproveitamento Hidroagrícola do CaiaPublication . Perdigão, António; Rocha, Jorge; Morgado, Paulo; Oliveira, Pedro
- Dysarthria in individuals with Parkinson's disease: a protocol for a binational, cross-sectional, case-controlled study in French and European Portuguese (FraLusoPark)Publication . Pinto, Serge; Cardoso, Rita; Sadat, Jasmin; Guimarães, Isabel; Mercier, Céline; Santos, Helena; Atkinson-Clement, Cyril; Carvalho, Joana; Welby, Pauline; Oliveira, Pedro; D'Imperio, Mariapaola; Frota, Sónia; Letanneux, Alban; Vigario, Marina; Cruz, Marisa; Martins, Isabel Pavão; Viallet, François; Ferreira, Joaquim JIndividuals with Parkinson's disease (PD) have to deal with several aspects of voice and speech decline and thus alteration of communication ability during the course of the disease. Among these communication impairments, 3 major challenges include: (1) dysarthria, consisting of orofacial motor dysfunction and dysprosody, which is linked to the neurodegenerative processes; (2) effects of the pharmacological treatment, which vary according to the disease stage; and (3) particular speech modifications that may be language-specific, that is, dependent on the language spoken by the patients. The main objective of the FraLusoPark project is to provide a thorough evaluation of changes in PD speech as a result of pharmacological treatment and disease duration in 2 different languages (French vs European Portuguese).
- Epidemiology of psoriasis in Portugal: a population-based studyPublication . Torres, Tiago; Filipe, Paulo; Menezes Brandão, Francisco; Figueiredo, Américo; Pinto Soares, António; Sousa Basto, Artur; Rebelo, Clarisse; Correia, Osvaldo; Ferreira, Paulo; Brasileiro, Ana; Mendes-Bastos, Pedro; Paiva-Lopes, Maria João; Marques Pinto, Gabriela; Severo, Milton; Mendonça, Denisa; Oliveira, Pedro; Selores, Manuela; Massa, António; Pereira, Marta; Tavares Bello, RuiIntroduction: Psoriasis is a common, chronic, and inflammatory skin disorder with a high personal, social and economic burden and important implications for healthcare systems. The aim of this study was to provide an epidemiological characterization of individuals with psoriasis in Portugal. Material and methods: A large observational, cross-sectional, nationwide, population-based survey study developed by the Portuguese Psoriasis Group of the Portuguese Society of Dermatology and Venereology (GPP-SPDV). A structured questionnaire was designed and applied by experienced interviewers to a random, representative sample of Portuguese individuals with psoriasis and/or psoriatic arthritis. Patients were considered to have psoriasis if they replied positively to one of the following questions: "Does any physician have ever diagnosed you with psoriasis?" or "Do you have a skin disorder characterized by scaling, reddish skin lesions located in the elbows/knees/scalp?". Results: A total of 6381 individuals were interviewed, of which 283 met the criteria for psoriasis, corresponding to a prevalence rate of 4.4% (95% CI 3.95 - 4.98). Out of the participants that met psoriasis criteria, 24% had suggestive signs/symptoms but did not have a clinical diagnosis established and were not being monitored by a physician. Although more than 70% of participants had active disease (scaling, erythema, or pruritus) and one third had joint symptoms, only 12% were on systemic treatment. Fifty percent of participants with psoriasis (n = 139) had relevant comorbidities (most frequently depression/anxiety and cardiometabolic diseases). Sixteen percent of participants with psoriasis (n = 46) reported that psoriasis interfered with their daily activities (median impact of 5 in a 0 - 10 scale) and 12% mentioned the disease had an impact in their sexual life (median impact of 5 in a 0 - 10 scale). Conclusion: The results of this study suggest that the prevalence rate of psoriasis is likely to be high in Portugal, and several gaps exist at different levels of healthcare delivery to these patients, from diagnosis to treatment. This study provides important data for the future planning of interventions targeting the improvement of psoriasis care in Portugal.
- Exploring the impact of depression, anxiety, stress, academic engagement, and dropout intention on medical students' academic performance: a prospective studyPublication . Sinval, Jorge; Oliveira, Pedro; Novais, Filipa; Almeida, Carla Maria; Telles-Correia, DiogoBackground Depression, anxiety, and stress (DAS) have been linked to poor academic outcomes. This study explores the relationships among DAS, academic engagement, dropout intentions, and academic performance — measured by Grade Point Average (GPA) — in medical students. It aims to understand how these factors relate to each other and predict academic performance. Methods Data were collected from 351 medical students (74.9 % female) through an online survey. The average age was 20.2 years. Psychometric instruments measured DAS, academic engagement, and dropout intentions. Structural equation modeling was used to test the relationships between these variables and their prediction of GPA. Results DAS was negatively associated with academic engagement and positively associated with dropout intentions . Academic engagement positively predicted GPA and negatively associated with dropout intentions . DAS had a nonsignificant direct effect on GPA . However, the indirect effect of DAS — via academic engagement — on GPA and dropout intention was statistically significant. Limitations The study's limitations include the use of a convenience sample and the collection of all variables, except GPA, at the same time point, which may affect the generalizability of the results. Conclusions The study supports the important role of DAS in its association with academic engagement and dropout intentions, which can predict GPA. Addressing DAS could enhance academic engagement and reduce dropout rates, leading to better academic performance.
- GIS for water district management. A case study the Caia networkPublication . Oliveira, Pedro; Perdigão, António; Morgado, Paulo; Rocha, JorgeThe development of-irrigation technologies related with the different areas covered by irrigated crops in Portugal as well on the Southern countries of the EU tacking into account the relative importance of Agriculture, in what concerns the integration, Water Framework directive and the Eco-compatibility principles requires the capability for the management of big amount of spatial data, a detailed knowledge of Their structure and links, the improvement and development of GIS skills at Local, Regional or National scale, integrating remote sensing data on different systems, allowing a belter water use, allowing a better knowledge of spatial and temporal distribution of land Use, Soil! Types, Crop Water requirements, water distribution network and a more rational management of the available water resource. The application of the GIS to the areas covered by the different Water Districts Management Boards, spread all over the country, gives the possibility for a better use of water for agriculture, on the frame of programs like the EU INTERREG /I C Program
- GIS for water district managmentPublication . Perdigão, António; Oliveira, Pedro; Rocha, Jorge; Morgado, PauloThe development of irrigation technologies related with the different areas covered by irrigated crops in Portugal as well on the Southern countries of the EU tacking into account the relative importance of Agriculture, in what concerns the integration , Water Framework directive and the Eco-compatibility principles requires the capability for the management of big amount of spatial data, a detailed knowledge of their structure and links, the improvement and development of GIS skills at Local, Regional or National scale, integrating remote sensing data on different systems, allowing a better water use, allowing a better knowledge of spatial and temporal distribution of land Use, Soil Types, Crop Water requirements, water distribution network and a more rational management of the available water resource. The application of the GIS to the areas covered by the different Water Districts Management Boards, spread all over the country, gives the possibility for a better use of water for agriculture, on the frame of programs like the EU INTERREG II C Program.
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