59 research outputs found

    Diálogos e modos de actuação colectiva com vista à sustentabilidade do sobreiro em Portugal

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    Neste texto procura-se caracterizar o sobreiro e o montado de sobro em Portugal, numa perspectiva de analisar as inter-relações entre os agentes ecológicos, económicos, sociais e ambientais, incluindo-se uma breve síntese histórica, com vista a identificar quais as condições associadas à vulnerabilidade e à sustentabilidade ecológica do sobreiro. A propósito do declínio, morta súbita, e desenvolvimento do sobreiro em Portugal, procura-se, também, reflectir sobre o valor da biodiversidade do montado, e analisar em que medida a conservação da biodiversidade associada ao sobreiro congrega o diálogo entre ciência e outros saberes, e a construção de modos de actuação colectiva, entre conhecimento, agentes e sociedade, no sentido de uma sustentabilidade plural

    Quercirhiza tomentellocumulata” + Quercus suber L.

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    Mycorrhizae blackish, rough, with soil particles sticking to the mantle. Emanating hyphae dark brown, distributed unevenly. Mantle in outer and middle layers pseudoparenchymatous, with roundish cells. Inner layers with undifferentiated hyphae distributed with no discernible pattern alternating with ring-like arranged regions. Outer mantle layers with roundish cells overlaying groups of 2-6 cells. Emanating hyphae densely warty.Peer reviewe

    "Quercirhiza flavocystidiata" + Quercus suber L.

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    This ectomycorrhiza shows, a cover of bright yellow cystidia (appering fluorescent in surface light), causing a short-spiny surface, on a dark brown mantle. Mantle plectenchy-matous in all layers, outer and middle layers star-like, inner layers plectenchymatous with sinous hyphae. Cystidia similar to normal hyphae, but fusiform and clamped at the base. Rhizomorphs frequent, slightly differentiated, occurring on mycorrhizal systems and in the soil, brown to dark brown, ramified at restricted points, conical-young side branches present cystidia on rhizomorphs lacking. Slerotia lacking.This study was financially supported by Fundaçao Para a Ciência e a Tecnologia (SFRH7 BPD/5560/2001) and HP BIODIBERIA program at the Real Jardín Botánico (Madrid).Peer reviewe

    time to go public with insulin resistance?

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    BACKGROUND: It is estimated that around 70% of Type 2 Diabetes Mellitus patients (T2DM) have Non-Alcoholic Fatty Liver Disease (NAFLD). Awareness and education are amongst the major shortcomings of the public health response to the increasing threat of NAFLD. Characterizing the specific NAFLD-related information needs of particular high-risk metabolic communities, for instance, T2DM patients, might aid in the development of evidence-based health promotion strategies, ultimately promoting NAFLD-awareness, treatment adherence and therapeutic success rates. METHODS: Semi-structured interviews with T2DM patients were conducted to gain insight into their awareness of NAFLD, including its relationship with insulin resistance and T2DM. RESULTS: Awareness of NAFLD as a disease entity, as well as its progression to end-stage liver disease or its relationship with other metabolic conditions, including insulin resistance and T2DM was low. Surveillance behaviours were also suboptimal and perceptions on the self-management knowledge and praxis regarding lifestyle intervention components of T2DM treatment seemed detached from those of NAFLD. CONCLUSIONS: Our findings could inform the integration of NAFLD-related content in T2DM health promotion strategies. Rising awareness on NAFLD progression and its relationship with T2DM using culturally and community-relevant constructs might facilitate the development of primary and secondary prevention programmes to promote the adherence to lifestyle interventions by influencing NAFLD threat perceptions.publishersversionpublishe

    Living labs in the context of the UN sustainable development goals: state of the art

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    This paper reports on a comprehensive study, which has investigated the approaches, methods and tools being deployed in implementing living labs among higher education institutions (HEIs) around the world. Two methods were employed. First, a bibliometric analysis of the current emphasis given to living labs in a sustainable development context and in the implementation of the Sustainable Development Goals (SDGs). Second, an empirical study aimed at identifying the use levels of living labs at HEIs. This was accomplished through an analysis of selected case studies that showcased successful approaches to SDGs implementation with living labs, and resulted in a framework for action. There are three main findings from these analyses. The first is that the multidisciplinary character of living labs in the context of sustainable development needs to be considered, to maximize their impacts. Second, most of the studied living labs focus on SDGs 4 and 11, which deal with providing quality education and ensuring the sustainable development of cities and communities. Third, the challenges encountered in the implementation of living labs refer to (1) the complexities in institutional administration, (2) the tensions between different groups of interest that need to be addressed by enhanced communication, and (3) the necessity to pay attention to the demand of using sustainability and innovation as a strategy in the operations of living labs. The paper draws from the experiences and lessons learned and suggests specific measures, which will improve the use of living labs as more systemic tools towards the implementation of the SDGs

    Diálogos e modos de actuação colectiva com vista à sustentabilidade do sobreiro em Portugal

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    Neste texto procura-se caracterizar o sobreiro e o montado de sobro em Portugal, numa perspectiva de analisar as inter-relações entre os agentes ecológicos, económicos, sociais e ambientais, incluindo-se uma breve síntese histórica, com vista a identificar quais as condições associadas à vulnerabilidade e à sustentabilidade ecológica do sobreiro. A propósito do declínio, morta súbita, e desenvolvimento do sobreiro em Portugal, procura-se, também, reflectir sobre o valor da biodiversidade do montado, e analisar em que medida a conservação da biodiversidade associada ao sobreiro congrega o diálogo entre ciência e outros saberes, e a construção de modos de actuação colectiva, entre conhecimento, agentes e sociedade, no sentido de uma sustentabilidade plural

    Diversidade de fungos ectomicorrízicos em ecossistemas de Montado

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    Tese de doutoramento em Biologia (Ecologia) apresentada à Fac. de Ciências e Tecnologia da Univ. de Coimbr

    “Quercirhiza tomentelloreticulata” + Quercus suber L.

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    “Quercirhiza tomentelloreticulata” ectomycorrhizae are characterized by monopodial pyramidal systems with brownish to greyish tips. The mantle exhibits plectenchymatous organization in all layers. Outer mantle layers consist of irregularly shaped hyphae with no discernible pattern alternating with areas star-like organized: the mantle surface bears a thin hyphal net of repeatedly ramified hyphae that end into abundant emanating hyphae. This ectomycrrhiza was identified as a Tomentella species by nrDNA internal transcribed spacer (ITS) sequence analysis.Peer reviewe

    “Quercirhiza tomentellostellata” + Quercus suber L.

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    Mycorrbizal systems of "Quercirhiza tomentellostellata" are monopodial-pinnate to-pyramidal in shape and dark brown to black in colour. They form outer mantle layers with roundish to angular cells which bear groups of globose cells with conical wall outgrowths, and become elongated and star-like arranged in middle mantle layers. Inner layers are plectenchymatous with cells varying in shape but mostly elongated, distributed with no discernible pattern altrenating with portions of ring-like arrangement. Rhizomorphs are slightly differentiated and produce thin and densely twisted peripheral byphae. The mycosymbiont of this ectomycorrhiza was identified as a member of the genus Tomentella by nrDNA its sequence analysis.Peer reviewe

    “Quercirhiza tomentelloepidermoidea” + Quercus suber L.

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    Mycorrhiza dark brown with monopodial-pyramidal ramitication. The most remarkable feature is the pseudoparenchymatous outer mantle layer transient to plectenchymatous with irregularly shaped hyphae, some of them almost epidermoid, and the mounds of roundish cells on the surface. Middle and inner mantle layers plectenchymatous with irregularly shaped hyphae distributed without a discernible pattern in a non-gelatinous matrix. The identification of the mycosymbiont as a member of the genus Tomentella was confirmed by nrDNA internally transcribed spacer (ITS) sequencing analysis.Peer reviewe
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