388 research outputs found

    The impact of insurance in investment strategies : a real option approach

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    Mestrado Bolonha em Mathematical FinanceThis study aims to understand what a firm’s investment strategy should be if the firm considers purchasing insurance. We consider an investment model with two sources of uncertainty. The firm’s future revenue is assumed to depend on a random economic indicator, following a Geometric Brownian Motion. On the other hand, unexpected adverse events, that reduce a firm’s future revenue, are introduced out, described by a compound Poisson Process. The objective is to decide on the optimal moment for the firm to invest in the market and the insurance contract that it wants to buy. The decision to buy an insurance contract depends on the insurance premium and how the firm measures its risk. We formulate the model as a control problem that is solved using a dynamic programming approach.info:eu-repo/semantics/publishedVersio

    Permanent pastures in mountain areas: characterization, management and conservation

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    Mountain permanent pastures are one of the most important resources in traditional systems of land use, extensively distributed in central and northern mainland Portugal. Its importance in biodiversity conservation, not only at regional and national level, but also in the European context is generally recognized. They include meadows, mesophille perennial Nardus grasslands and other perennial pastures of high ecological, economic, cultural and scenic value.They have important functions such as prevention of soil erosion, reducing the risk of fire, between others. Generally, they are grazed mainly by cattle and sheep; some of them are cut and improved aiming to increase their nutritional value. The increasing desertification limits the maintenance and conservation of its biodiversity and the landscape mosaic associated with it. A revision and synthesis of habitats and plant communities associated, that develop in these permanent pastures, in Beira Alta, is presented, as well an approach to their maintenance, management and conservatio

    Inflammatory Process in Chronic Heart Failure: Impact of Cardiac Resynchronization Therapy

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    Chronic heart failure (CHF) is a worldwide public health problem. It consists of a complex condition characterized by inadequate cardiac function, accompanied by cardinal symptoms and multiple signs and comorbidities. The pathophysiology of heart failure (HF) is not completely understood; however, it usually culminates in a progressive myocardial dysfunction associated with continuous ventricular remodelling. Nowadays, it is also well established that immune system activation promotes a systemic inflammatory status in this condition. HF patients, independent from prevalent systolic or diastolic dysfunction, present increased levels of several pro-inflammatory cytokines, associated with adverse clinical outcomes. Peripheral blood cells have been suggested as a potential source for the prolonged systemic production of cytokines in CHF. Numerous studies propose the participation of these cells in the pathogenesis of the disease itself, contributing to progressive cardiac remodelling. Cardiac resynchronization therapy (CRT) is a guideline-recommended treatment for patients with drug-refractory HF, reduced left ventricle ejection fraction (LVEF), and left bundle branch block (LBBB). This therapy has beneficial effects on symptoms and cardiac remodelling in responder patients, such as reverse cardiac remodelling (with the reduction of left ventricular volumes and increased LVEF), improvement of New York Heart Association (NYHA)-based functional status, symptoms, and quality of life, reduction of brain natriuretic peptide, improvement in the six-minute walk test, and reduction of mortality and hospitalization for HF. In addition, previous studies have shown a reduction in inflammatory mediators in HF patients treated with CRT. Nonetheless, the connection between reverse cardiac remodelling, and the potential antiinflammatory effect of CRT and peripheral immune cells remains far from fully understood. Therefore, the overall goals of the present research were to elucidate the role of peripheral immune cells in CHF, to investigate the effect of CRT on immune cell dynamics, and to study the possible contribution of those cells to reverse cardiac remodelling. The specific aims included: first, to quantify and functionally characterize circulating innate immune cells, like monocytes and dendritic cells (DC), and cells from adaptive immunity, like the different functional subsets of lymphocytes in patients with advanced HF; second, to study the impact of CRT on those cells by evaluating their frequency of and functional activity in HF patients before and 6 months after CRT; and third, to investigate possible differences between responders and non-responders to CRT. To this end, this research was divided into two phases. First, blood samples were collected from HF patients scheduled for CRT. Subsequently, cells were identified, quantified, and characterized by flow cytometry through direct immunofluorescence membrane and intracytoplasmic staining protocols. Their functional characterization was also evaluated by flow cytometry, but after in vitro stimulation. The quantification of mRNA expression was conducted by real-time polymerase chain reaction (PCR). Statistical analyses were performed to compare data between the control group and HF patients. The second phase comprised a reassessment of patients 6 months after CRT, in which the same variables were analysed. At this time, statistical comparisons were performed not only between the control group and patients, but also between baseline assessment and follow-up, and between responders and non-responders to CRT. Patients with HF presented a significantly lower frequency of plasmacytoid DC (pDC) at baseline and a higher proportion of monocytes and myeloid DC (mDC) producing proinflammatory cytokines than normal individuals. As for adaptive immunity cells, circulating Tc17 cells tended to be higher in patients than in the control group. On the contrary, the level of cells measuring immune tolerance and homeostasis, regulatory T (Treg) cells, was decreased in HF patients. These differences characterize the inflammatory state of HF and support the idea that peripheral immune cells are involved in this inflammatory process. After CRT, a paradigm shift occurred within monocyte subsets: the frequency of classical monocytes (cMo) decreased while that of intermediate monocytes (iMo) increased among responder patients. This group also presented higher non-classical monocytes (ncMo) values at follow-up compared to the non-responder group. These findings suggest the involvement of monocyte subsets in reverse cardiac remodelling and CRT response. In addition, all patients presented a reduction in CD86 expression in all monocyte and DC subpopulations, indicating a compromise in the induction of the adaptive immune response by monocytes and DC. Moreover, in non-responders, the increased frequency of pro-inflammatory cytokines-producing DC persisted after CRT. Regarding T cell subpopulations, the frequency of Tc17 cells decreased after therapy, reaching levels similar to those in the control group. This observation was mainly found among responder patients. Additionally, the expression of IL-17 mRNA was detected in a few responders at initial evaluation and only in one responder at follow-up. These findings showed that IL-17-producing T cells appear to be suppressed after CRT. On the other hand, the level of Treg cells was not restored after treatment, and the production of inflammatory cytokines by CD8+ T cells increased during follow-up. In conclusion, although some cell subpopulations remained pro-inflammatory after CRT, the findings observed in responders indicate that CRT can modulate the behaviour of immune cells, potentially contributing to reverse cardiac remodelling and improving cardiac function. These findings help elucidate the complex relationship between the immune system and cardiac therapy, suggesting that CRT may benefit patients with CHF by improving symptoms, reversing cardiac remodelling, and altering the behaviour of immune cells, thereby potentially reducing the inflammatory response in the heart.A insuficiência cardíaca crónica (ICC) é um problema de saúde pública global que se caracteriza por uma função cardíaca inadequada, acompanhada de sintomas cardinais e múltiplos sinais e comorbidades. A fisiopatologia da insuficiência cardíaca (IC) não é completamente compreendida, mas, geralmente, culmina em disfunção miocárdica progressiva associada a remodelação ventricular contínua. Atualmente, está bem estabelecido que a ativação do sistema imunitário promove um estado inflamatório sistémico nesta patologia. Doentes com IC, independente da prevalência da disfunção sistólica ou diastólica, apresentam níveis aumentados de diversas citocinas próinflamatórias, associados a desfechos clínicos adversos. As células sanguíneas periféricas têm sido sugeridas como uma potencial fonte para a produção sistémica e prolongada de citocinas na ICC. De facto, numerosos estudos propõem a participação destas células na própria patogénese da doença, contribuindo para a remodelação cardíaca progressiva. A terapia de ressincronização cardíaca (TRC) é um tratamento recomendado pelas diretrizes internacionais para doentes com IC refratária a terapêutica farmacológica, fração de ejeção do ventrículo esquerdo (FEVE) reduzida, e bloqueio de ramo esquerdo (BRE). Esta terapia tem efeitos benéficos sobre os sintomas e remodelação cardíaca em doentes respondedores, incluindo a remodelação cardíaca reversa (com redução dos volumes ventriculares esquerdos e aumento da FEVE), melhoria do estado funcional segundo a New York Heart Association (NYHA), dos sintomas e qualidade de vida, redução do peptídeo natriurético cerebral, melhoria no teste de marcha de seis minutos e redução da mortalidade e internamento por IC. Além disso, estudos anteriores também mostraram uma redução nos mediadores inflamatórios em doentes com IC submetidos à TRC. No entanto, a ligação entre a remodelação cardíaca reversa, o potencial efeito anti-inflamatório da TRC e as células imunitárias periféricas está longe de ser compreendida. Neste sentido, os objetivos gerais da presente pesquisa foram compreender o papel das células imunitárias periféricas na ICC, investigar o efeito da TRC na dinâmica destas células e, estudar a sua possível contribuição na remodelação cardíaca reversa. Os objetivos específicos incluíram: primeiro, quantificar e caracterizar funcionalmente células imunitárias inatas circulantes, como monócitos e células dendríticas (DC), e células da imunidade adaptativa, como os diferentes subconjuntos funcionais de linfócitos nos doentes com IC avançada; segundo, estudar o impacto da TRC nessas células, avaliando a sua frequência e atividade funcional nos doentes com IC, antes e 6 meses após a TRC; e terceiro, investigar possíveis diferenças entre respondedores e não respondedores à TRC. Para isso, esta investigação foi dividida em duas fases. Primeiramente, foram colhidas amostras de sangue de doentes com IC agendados para TRC. Nesse momento, as células foram identificadas, quantificadas e caracterizadas por citometria de fluxo através de protocolos de marcação de membrana e intracitoplasmática. A sua caracterização funcional foi também avaliada por citometria de fluxo, após estimulação in vitro. A quantificação da expressão do mRNA foi realizada por polymerase chain reaction (PCR) em tempo real. As análises estatísticas foram realizadas para comparar os resultados entre o grupo controlo e o grupo de doentes com IC. A segunda fase compreendeu uma reavaliação dos doentes 6 meses após a TRC, na qual foram analisadas as mesmas variáveis. Nesse momento, foram realizadas comparações estatísticas não apenas entre o grupo controlo e os doentes, mas também entre a avaliação inicial e o acompanhamento, e entre os doentes respondedores e os não respondedores à TRC. O grupo de doentes com IC apresentou uma frequência significativamente menor de DC plasmacitóides (pDC) no início do estudo e uma maior proporção de monócitos e DC mielóides (mDC) produtores de citocinas pró-inflamatórias do que os indivíduos normais. Quanto às células da imunidade adaptativa, as células Tc17 circulantes encontravam-se aumentadas nos doentes comparativamente ao grupo controlo. Pelo contrário, as células que medeiam a tolerância imunológica e a homeostasia, as células T reguladoras (Treg), estavam diminuídas em doentes com IC. Estas diferenças caracterizam o estado inflamatório da IC e apoiam a ideia de que as células imunitárias periféricas estão envolvidas neste processo inflamatório. Após a TRC, ocorreu uma mudança de paradigma nos subconjuntos de monócitos: a frequência de monócitos clássicos (cMo) diminuiu enquanto a de monócitos intermediários (iMo) aumentou em doentes respondedores. Este grupo também apresentou valores mais elevados de monócitos não clássicos (ncMo) no seguimento em comparação ao grupo não-respondedor. Esses achados sugerem uma participação dos subgrupos de monócitos na remodelação cardíaca reversa e na resposta à TRC. Além disso, todos os doentes apresentaram diminuição na expressão de CD86 em todas as subpopulações de monócitos e DC, mostrando um comprometimento na indução da resposta imunitária adaptativa por estas células. Mais, nos doentes não-respondedores, o aumento da frequência de DC produtoras de citocinas pró-inflamatórias persistiu após a TRC. Em relação às subpopulações de células T, a frequência de células Tc17 diminuiu após a terapia, atingindo níveis semelhantes aos do grupo controlo. Este achado foi observado principalmente nos doentes respondedores. Estas descobertas mostraram que as células T produtoras de IL-17 parecem ser suprimidas após a TRC. Por outro lado, o nível de células Treg não foi restaurado após o tratamento, e a produção de citocinas inflamatórias pelas células T CD8+ aumentou no acompanhamento. Em conclusão, embora algumas subpopulações celulares tenham permanecido próinflamatórias após a TRC, os resultados observados nos respondedores indicam que a TRC pode modular o comportamento das células imunitárias, contribuindo potencialmente para reverter a remodelação cardíaca e melhorar a função cardíaca. Estas descobertas ajudam a elucidar a complexa relação entre o sistema imunitário e a terapia cardíaca, sugerindo que a TRC pode beneficiar os doentes com ICC, não só pela melhoria dos sintomas e remodelação cardíaca reversa, mas também alterando o comportamento das células imunitárias, reduzindo potencialmente as respostas inflamatórias no coração

    Integration of culture- and molecular-based water quality monitoring tools to protect human health

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    Monitoring and improving the microbiological quality and safety of surface waters used for various purposes, including drinking water abstraction and recreation is paramount as degradation may pose a serious risk to human health and cause significant economic losses as a result of the closure of beaches and shellfish harvesting areas. With the aim of providing new knowledge and tools with which to manage more effectively faecal contamination of water resources, this study focused on three goals: 1) determining the fate and suitability of new bioindicators for virus removal during wastewater treatment; 2) elucidating the levels and sources of faecal pollution in the River Tagus (Rio Tejo) using a blend of newly-developed and existing microbial source tracking (MST) markers; and 3) critically evaluating various pretreatments to distinguish between infectious and non-infectious viruses. To this end, raw and treated wastewater were collected and tested for the presence of traditional faecal indicator bacteria (FIB), and four viral bio-indicators (namely, somatic coliphages (SC), GB124 phages, human adenovirus (HAdV) and JC Polyomavirus (JCPyV)). In order to demonstrate whether the novel bio-indicators might be suitable indicators of risk to human health, Norovirus genogroup II (NoVGII) were also analysed, in parallel. FIB, SC and GB124 phages were analysed using standardised culture methods (membrane filtration and plaque assays) and HAdV, JCPyV and NoVGII were analysed using widely used molecular (qPCR) methods. Samples of river water were collected over a thirteen-month period and analysed for both non source-specific indicators of faecal contamination (Escherichia coli (EC), intestinal enterococci (IE), and SC) and source-specific contamination markers ((GB124 phages, HAdV) and four mitochondrial DNA markers (HMMit, CWMit, PigMit and PLMit)). EC, IE, SC and GB124 phages were detected by culture methods and HAdV and mitochondrial markers were detected by molecular (qPCR) methods. Furthermore, domestic animal markers (based on the detection of mitochondrial DNA) were also developed for dog and cat and tested during the catchment study. Finally, in order to determine accurately the level of risk to human health, heat-, chlorine-, and UV-inactivated Enterovirus and Mengovirus were subjected to PCR pre-treatments using enzymatic digestion and viability dyes, in order to determine infectivity. Detection of inactivated Mengovirus (MC0) was performed by RT-qPCR and detection of inactivated Enterovirus (EntV) was performed by both RT-qPCR and cell culture. The results demonstrated that the traditional bacterial indicators (FIB) were more effectively removed during wastewater treatment than GB124 phages, SC, HAdV and JCPyV, the removal levels of which were more similar to those of NoVGII. Spearman’s correlation showed that SC and GB124 phages correlated positively with NoVGII at a relatively high level and that HAdV and EC correlated positively at a moderate level. Discriminant analysis revealed that whilst no organism could predict the presence or absence of NoVGII in treated wastewater, GB124 phages in combination with other parameters did result in higher percentages of correct classification. GB124 phages plus HAdV appeared to be good candidates as alternative indicators of enteric virus removal during wastewater treatment. Results from the catchment study demonstrated that certain sites on the River Tagus are relatively highly impacted by faecal contamination (as indicated by EC, IE and SC concentrations). Moreover, the MST markers revealed that this contamination appears to be not only of human origin, but also originates from a range of other animal sources. The HMMit marker was the most prevalent and was found at the highest mean concentrations, followed by the CWMit marker. Two-way ANOVA revealed a correlation between concentrations of non source-specific indicators (and the CWMit marker) and season. Physico-chemical parameters, such as temperature and UV radiation, were found to be related to to levels of the CWMit, EC, IE, and SC. Interestingly, rainfall levels were found to be related to concentrations within the river of the PLMit marker and of the newly-developed dog and cat markers. Weak to no correlations were found between non source-specific indicators and the various MST markers, providing further evidence that these faecal indicators were unsuitable for determining the source(s) of contamination in this study. In contrast, the relatively high sensitivity and specificity of the mitochondrial DNA markers supported their use as appropriate markers of the origin of faecal contamination in this scenario. The results from the viral infectivity study demonstrated that results of ‘viability PCR’ (involving viability dyes) of chlorine- and UV-treated viruses did not correlate with those from cell culture assay. However, data from RNase-RT-qPCR from chlorine- and UV-inactivated viruses were consistent with the cell culture assay, achieving full PCR signal reduction in several instances. Heat treatment appeared to play an important role, since a significant reduction in the RT-qPCR signal was achieved. Different pre-treatments were able to achieve full removal of RT-qPCR signal for non-infectious heat-treated EntV and MC0. Therefore, enzymatic treatment may represent a rapid and inexpensive tool for discriminating between infectious and non-infectious viruses and as such should improve understanding of risks to human health. This research has demonstrated that the currently-used methodologies and approaches to assess the potential human health impact of wastewater discharges to environmental waters are limited in their ability to predict the prevalence of important agents of human waterborne disease. Furthermore, these findings provide evidence to support the development and application of alternative and potentially more effective approaches, which could better protect human health in the future

    Adaptation and initial validation of the career resources questionnaire for Portuguese - he students form

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    A diversified set of career resources has been related in the literature with career development and career success. The Career Resources Questionnaire (CRQ), based on the Career Success framework, was proposed by Hirschi and colleagues (2018) as an instrument aggregating several constructs that emerged as important predictors of career success. This study aims to examine the psychometric properties of the CRQ to a Portuguese higher education sample, as a way to extend previous evidence of validity presented by the authors of the original version. For such, construct, convergent and discriminant validity were examined. Also, reliability and correlations analysis were conducted, taking some sociodemographic and educational attainment variables. The obtained findings showed adequate results, which support the use of the CRQ in Portugal for research or practical purposes. Suggestions for further research and practical implications are also presented.FCT -Fundação para a Ciência e a Tecnologia(UIDB/01661/2020

    The economic performance of bioeconomy : the case of EU27

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    This dissertation tries to show the importance of bioeconomy through the analysis of its economic performance in the European region, by creating a dashboard numerical model and, posteriorly, the presentation of economic indicators, in Power BI. Moreover, it analyses how bioeconomic performance relates to European Union’s policies towards a sustainable economy, with the inclusion of indicators that measure and relate to sustainability. By analyzing bioeconomic performance and sustainability parameters, with the help of a modern data analysis dynamic tool as Power BI, an overview on current bioeconomic performance within European Union’s 27 Member States, and bioeconomy’s sectors, is achieved, enlightening how bioeconomy is evolving and is characterized in the European context.Esta dissertação tenta mostrar a importância da bioeconomia através da análise da sua performance económica no contexto da região da União Europeia, por via da criação de um modelo numérico numa dashboard e, posteriormente, a apresentação de indicadores económicos, no Power BI. Adicionalmente, analisa de que forma é que a performance económica se relaciona com as políticas da União Europeia de promoção de uma economia mais sustentável, através da inclusão de indicadores que medem e se relacionam com a sustentabilidade. Analisando a performance bioeconómica e os parâmetros de sustentabilidade, com a ajuda de uma ferramenta moderna e dinâmica de análise de dados como o Power BI, uma visão geral sobre a atual performance bioeconómica dos 27 Estados-Membros da União Europeia, assim como sobre os setores da Bioeconomia, é conseguida, esclarecendo de que forma é que a bioeconomia se está a desenvolver e é caracterizada no contexto Europeu

    Employabilité des diplômés de l’enseignement supérieur: réflexions et implications pédagogiques

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    The changes that have occurred in higher education and labour market in recent years highlight the need for an in-depth reflection on current prevailing educational paradigms, and their adequacy in responding to the demands of today’s society. One of the topics that has gained particular attention is related with graduates’ employment rates, which represents one current criteria used to assess the quality of higher education institutions and courses. In this context, this article aims to reflect on current knowledge about graduates’ employability. Considering various empirical works and research lines developed over recent years, we propose a set of four premises in an effort to lend structure to some pedagogical and curricular implications for higher education institutions: (i) the risk of the “one-dimensional prioritisation” of technical skills; (ii) career management skills as a catalyst for employability; (iii) graduates and their transformative potential within organizations; (iv) the implausibility of a single model for promoting employability. To conclude, it is argued that the education of future graduates should not limit itself to the present. Pedagogical practices of teaching and learning must promote the continued construction of knowledge and skills, practical experience and work placements in organizations with different structures within the community.As mudanças, ocorridas no ensino superior e no mercado de trabalho ao longo dos últimos anos, remetem para a necessidade de uma reflexão aprofundada acerca dos paradigmas educativos que hoje prevalecem e da sua adequação face às exigências sociais que hoje se colocam. A este respeito, um dos tópicos que ganha particular relevância relaciona-se com as taxas de emprego dos graduados, e que representa um critério atual utilizado para avaliar a qualidade das instituições e cursos de ensino superior. Pretende-se com este artigo apresentar uma reflexão em torno do conhecimento atual sobre o tema da empregabilidade, integrando diferentes trabalhos e linhas empíricas desenvolvidas ao longo dos últimos anos, organizada em quatro premissas: (i) o risco da “priorização avulsa” das competências técnicas; (ii) as competências de gestão de carreira como catalisadoras da empregabilidade; (iii) os graduados e o potencial transformador das organizações; (iv) a implausibilidade de modelos únicos na promoção da empregabilidade. Para concluir, argumenta-se que a educação dos futuros licenciados não se deve limitar a uma visão de curto prazo. As práticas pedagógicas de ensino e aprendizagem devem promover a construção contínua de conhecimentos e competências, experiência prática e estágios em organizações com diferentes estruturas, dentro da comunidade.Los cambios que se han producido en la enseñanza superior y en el mercado laboral en los últimos años apuntan a la necesidad de una reflexión profunda sobre los actuales paradigmas educativos imperantes y su adecuación a las exigencias de la sociedad actual. En este contexto, uno de los temas que adquiere especial relevancia se refiere a las tasas de empleo de los graduados después de su formación, que es un criterio que se utiliza actualmente para evaluar la calidad de las instituciones y cursos de enseñanza superior. Así pues, este artículo pretende reflexionar sobre los conocimientos actuales en materia de empleabilidad de los graduados. Considerando varios trabajos empíricos y líneas de investigación desarrolladas en los últimos años, se presenta un conjunto de cuatro premisas: i) el riesgo de la “priorización única” de las competencias técnicas; ii) las competencias en materia de gestión de la carrera como catalizadoras de la empleabilidad; iii) los graduados y el potencial transformador de las organizaciones; iv) la inverosimilitud de los modelos singulares en la promoción de la empleabilidad. En conclusión, se argumenta que la educación de los futuros graduados no debe limitarse a las circunstancias y necesidades actuales. Por otra parte, se propone la idea de prácticas de enseñanza y aprendizaje que promuevan la construcción continua de conocimientos, habilidades y experiencias prácticas a fin de contribuir a diferentes tipos de contextos.Les changements survenus dans l’enseignement supérieur et sur le marché du travail ces dernières années soulignent la nécessité d’une réflexion approfondie sur les paradigmes éducatifs qui prévalent actuellement, et sur leur adéquation pour répondre aux exigences de la société actuelle. L’un des sujets qui a fait l’objet d’une attention particulière est lié au taux d’emploi des diplômés, qui représente l’un des critères actuellement utilisés pour évaluer la qualité des institutions et des cours de l’enseignement supérieur. Dans ce contexte, cet article vise à réfléchir sur les connaissances actuelles concernant l’employabilité des diplômés. En tenant compte de divers travaux empiriques et lignes de recherche développés au cours des dernières années, nous proposons un ensemble de quatre prémisses afin de structurer certaines implications pédagogiques et curriculaires pour les institutions d’enseignement supérieur: (i) le risque d’une «hiérarchisation unidimensionnelle» des compétences techniques; (ii) les compétences en gestion de carrière comme catalyseur de l’employabilité; (iii) les diplômés et leur potentiel de transformation au sein des organisations; (iv) l’invraisemblance d’un modèle unique de promotion de l’employabilité. Pour conclure, on fait valoir que l’éducation des futurs diplômés ne devrait pas se limiter au présent. Les pratiques pédagogiques d’enseignement et d’apprentissage doivent promouvoir la construction continue de connaissances et de compétences, l’expérience pratique et les stages dans des organisations ayant des structures différentes au sein de la communauté.This work is funded by CIEd – Research Centre on Education, Institute of Education, University of Minho, projects UIDB/01661/2020 and UIDP/01661/2020, through national funds of FCT/MCTES-P

    Employability of higher education graduates: reflections and pedagogical implications

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    The changes that have occurred in higher education and labour market in recent years highlight the need for an in-depth reflection on current prevailing educational paradigms, and their adequacy in responding to the demands of today’s society. One of the topics that has gained particular attention is related with graduates’ employment rates, which represents one current criteria used to assess the quality of higher education institutions and courses. In this context, this article aims to reflect on current knowledge about graduates’ employability. Considering various empirical works and research lines developed over recent years, we propose a set of four premises in an effort to lend structure to some pedagogical and curricular implications for higher education institutions: (i) the risk of the “one-dimensional prioritisation” of technical skills; (ii) career management skills as a catalyst for employability; (iii) graduates and their transformative potential within organizations; (iv) the implausibility of a single model for promoting employability. To conclude, it is argued that the education of future graduates should not limit itself to the present. Pedagogical practices of teaching and learning must promote the continued construction of knowledge and skills, practical experience and work placements in organizations with different structures within the community. Keywords: higher education; graduates; employability; pedagogical implication

    Natural Hazards in Sao Vicente (Cabo Verde)

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    São Vicente island (República de Cabo Verde) lies within the Sahelian zone and faces a number of natural hazards, of which the most significant ones are erosion and gully formation, desertification and flash flooding hazards. Based on examples, we set out to examine the main factors involved in the development of these natural hazards from a regional point of view, while simultaneously assessing the importance of anthropic action as a structural factor. The investigation of Lazareto’s gullies (located to the west of Mindelo) aimed to determine the main factors of the gullies formation. It also sought to demonstrate that the gullies’ formation is a reliable indicator of the high rates of erosion on a regional scale. The approach to the desertification hazards was based on farmers’ perception related to the evolution of agricultural production, strategies to mitigate drought and desertification issues, consequences and future prospects based on a set of interviews conducted in Ribeira da Vinha. Finally, the intense rainfall event that occurred on August 26, 2008 was analysed to identify the main vulnerability factors of the city in light of the flash flood hazard

    Translation And Validation Of The Manchester Clinical Supervision Scale©: Effective Clinical Supervision Evaluation

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    AbstractIn Portugal, we are at the beginning of clinical supervision in nursing. We carried out a research to translate and validate the Manchester Clinical Supervision Scale© (MCSS) into Portuguese language from Portugal. Thus, we can assess the clinical supervision process. We applied the methods of translation and back – translation and experts analyzed translations. MCSS and the back translation were compared by collaborative parties. An empirical study using a test – retest design was made to estimate cross-cultural relevance. Cronbach's alpha value for the total score was 0,923 in both periods. The Portuguese version is culturally acceptable and consistent with the original
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