13 research outputs found

    Tula Giannini e Jonathan P. Bowen (ed.) – Museums and Digital Culture: New Perspectives and Research

    Get PDF
    O livro Museums and Digital Culture: New Perspectives and Research debruça-se sobre a cultura digital, as práticas artísticas digitais e o seu impacto nos museus no século XXI, traçando o desenvolvimento da cultura digital desde os anos de 1940 até ao presente. Sob múltiplos pontos de vista, esta publicação reflecte sobre o crescente e preponderante papel dos meios digitais na sociedade e o consequente impacto nos diferentes aspectos da prática museal. Os temas abordados visam responder a alg..

    ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

    Get PDF
    Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

    Tumores melanocíticos em equinos: estudo clínico, histopatológico e imunohistoquímico

    No full text
    Dissertação de Mestrado Integrado em Medicina Veterinária, Ciências VeterináriasA pele é o local mais comum de neoplasias em equinos. Supõe-se que a prevalência destas condições esteja a aumentar e estima-se que cerca de 2/3 (66%) dos tumores melanocíticos em equinos possam progredir para malignidade. A classificação destas lesões em equinos é complexa e dificulta o trabalho do patologista. A evolução ao nível das técnicas de imunohistoquímica tem sido importante no diagnóstico, prognóstico e terapêutica desta doença. Foi realizada a excisão cirúrgica de nódulos cutâneos de 43 equinos acompanhada de inquérito. A avaliação clínica baseou-se na idade (valor mínimo de 2,5 anos e máximo de 26 anos com média de 14,9 anos), género (51,2% ocorreram em machos e 48,8% em fêmeas), raça (sobretudo Puro-Sangue Lusitano - 60,5% e Cruzado Lusitano - 27,9%), pelagem (ruça em 90,7%, isabel em 4,7%, baia em 2,3% e castanha em 2,3%), quantidade (melanoma dérmico em 11,6% e melanomatose dérmica em 88,4%), tamanho (90,7 % pequeno, 44,2% médio e 25,6% grande), localização (zona perineal em 93%, outras localizações em 27,9% e padrão difuso em 4,7%) e duração das lesões (entre 6 meses e 20 anos). As amostras foram processadas e submetidas a análise histopatológica e imunohistoquímica. As variáveis histopatológicas avaliadas foram: localização (65,1 % na derme e 34,9% na derme e epiderme), tipo celular (7,0% fusiforme, 53,5% redondo e misto em 39,5%), ulceração (presente em 23,3%), quantidade de pigmento (escassa em 11,6%, moderada em 37,2% e abundante em 51,2%), quantidade de estroma (escassa em 44,2%, moderado em 37,2% e abundante em 18,6%), êmbolos vasculares/linfáticos (presentes em 9,3% das amostras). Obteve-se uma marcação positiva para o c-Kit em 62,8% das amostras. A quantidade, tamanho e localização das lesões são factores importantes na decisão terapêutica e no prognóstico das lesões. As variáveis histopatológicas podem ajudar a prever o comportamento dos tumores pelo que se deverá prosseguir com os estudos no sentido de estabelecer critérios direccionados para a espécie. A expressão desta proteína c-Kit não se encontrava avaliada em tumores melanocícitos de equinos. Obteve-se imunorreactividade em todos os tumores com características de malignidade evidente, dados que poderão ter implicações no diagnóstico e terapêutica dos mesmos.The skin is the most common site of neoplasia in the horse. It is assumed that the prevalence of this condition is increasing and it is estimated that about 2/3 (66%) of melanocytic tumors in horses can progress to malignancy. The classification of this disease in horses is complex and hinders the work of the pathologist. The development of immunohistochemistry techniques has been important in diagnosis, prognosis and therapy of this disease. Was performed the surgical excision of cutaneous nodules of 43 horses accompanied by inquiry. The clinical evaluation based on age (minimum 2.5 years old and a maximum of 26 years old with an average of 14.9 years old), gender (51.2% in males and 48.8% in females), breed (especially Lusitano - 60.5% and Lusitano Crossed Breed - 27.9%), coat color (gray in 90.7%, pearl in 4.7%, buckskin in 2.3% and bay in 2.3%), amount (dermal melanomas in 11.6% and dermal melanomatosis in 88.4%), size (90.7% small, 44.2% medium and 25.6% large), location (perineal area in 93%, other locations in 27.9% and diffuse in 4.7%) and duration of lesions (between 6 months and 20 years). The samples were processed and subjected to histopathological and immunohistochemical analysis. The histopathological variables evaluated were: location (65.1% in dermis and 34.9% in dermis and epidermis), cell type (7.0% spindle, 53.5% round and 39.5% mixed), ulceration (present in 23.3%), amount of pigment (poor in 11.6%, moderated in 37.2% and abundant in 51.2%), amount of stroma (poor in 44.2%, moderated in 37.2% and abundant in 18.6%) and vascular/lymphatic invasion (present in 9.3% of the samples). We obtained immunoreactivity for the c-Kit in 62.8% of the samples. The amount, size and location of the lesions are important factors in therapeutic decision and prognosis of the lesions. The histopathological variables can help predict the behavior of tumors, so we should continue with studies to establish criteria directed to the species. The expression of this protein c-Kit was evaluated for the first time, as far as we know, in equine melanocytic tumors. The fact that immunoreactivity was present in all tumors with features of evident malignancy may have implications on diagnosis and therapy of these tumors

    O passado no presente: o "outro" ou os "outros" no Museu do Oriente

    No full text
    Esta dissertação de mestrado constitui uma interrogação sobre o potencial transformador dos museus e visa contribuir, nomeadamente, para o debate acerca do posicionamento dos museus enquanto locais de transformação social. Assumir que os museus são locais de transformação implica reflectir sobre “onde está” e “o que defende”. Neste sentido, proponho uma abordagem crítica ao discurso expositivo do Museu do Oriente da Fundação Oriente, em Lisboa, tendo como foco a narrativa da exposição "Presença Portuguesa na Ásia", procurando analisar de que modo articula, ou não, o passado no presente, que memórias e experiências valoriza, e sobre que “outro" ou "outros” estão presentes e/ou ausentes do espaço expositivo.This dissertation constitutes an interrogation about the transformative potential of museums and aims to contribute, in particular, to the debate about the positioning of museums as places of social transformation. Assuming that museums are places of transformation implies reflecting on “where they are” and “what they defend”. In this sense, I propose a critical approach to the exhibition discourse of the Museu do Oriente at Fundação Oriente, in Lisbon, focusing on the narrative of the exhibition "Portuguese Presence in Asia", seeking to analyze how it articulates, or not, the past in the present, which memories and experiences are valued, and which “other” or “others” are present and/or absent from the exhibition space

    Maturity-Onset Diabetes of the Young (MODY) in Portugal: Novel GCK, HNFA1 and HNFA4 Mutations

    No full text
    Maturity-onset diabetes of the young (MODY) is a frequently misdiagnosed type of diabetes, which is characterized by early onset, autosomal dominant inheritance, and absence of insulin dependence. The most frequent subtypes are due to mutations of the GCK (MODY 2), HNF1A (MODY 3), and HNF4A (MODY 1) genes. We undertook the first multicenter genetic study of MODY in the Portuguese population. The GCK, HNF1A, and HNF4A genes were sequenced in 46 unrelated patients that had at least two of the three classical clinical criteria for MODY (age at diagnosis, family history, and clinical presentation). The functional consequences of the mutations were predicted by bioinformatics analysis. Mutations were identified in 23 (50%) families. Twelve families had mutations in the GCK gene, eight in the HNF1A gene, and three in the HNF4A gene. These included seven novel mutations (GCK c.494T>C, GCK c.563C>G, HNF1A c.1623G>A, HNF1A c.1729C>G, HNF4A c.68delG, HNF4A c.422G>C, HNF4A c.602A>C). Mutation-positive patients were younger at the time of diagnosis when compared to mutation-negative patients (14.3 vs. 23.0 years, p = 0.011). This study further expands the spectrum of known mutations associated with MODY, and may contribute to a better understanding of this type of diabetes and a more personalized clinical management of affected individuals

    Maturity-Onset Diabetes of the Young (MODY) in Portugal: Novel GCK, HNFA1 and HNFA4 Mutations

    No full text
    Maturity-onset diabetes of the young (MODY) is a frequently misdiagnosed type of diabetes, which is characterized by early onset, autosomal dominant inheritance, and absence of insulin dependence. The most frequent subtypes are due to mutations of the GCK (MODY 2), HNF1A (MODY 3), and HNF4A (MODY 1) genes. We undertook the first multicenter genetic study of MODY in the Portuguese population. The GCK, HNF1A, and HNF4A genes were sequenced in 46 unrelated patients that had at least two of the three classical clinical criteria for MODY (age at diagnosis, family history, and clinical presentation). The functional consequences of the mutations were predicted by bioinformatics analysis. Mutations were identified in 23 (50%) families. Twelve families had mutations in the GCK gene, eight in the HNF1A gene, and three in the HNF4A gene. These included seven novel mutations (GCK c.494T>C, GCK c.563C>G, HNF1A c.1623G>A, HNF1A c.1729C>G, HNF4A c.68delG, HNF4A c.422G>C, HNF4A c.602A>C). Mutation-positive patients were younger at the time of diagnosis when compared to mutation-negative patients (14.3 vs. 23.0 years, p = 0.011). This study further expands the spectrum of known mutations associated with MODY, and may contribute to a better understanding of this type of diabetes and a more personalized clinical management of affected individuals

    Comentarios a una sentencia anunciada : el proceso Lula

    No full text
    El centenar de textos que conforman este libro -escritos por un movimiento de prestigiosos/as juristas y abogados- desgranan el procedimiento al que fue sometido Lula. En la opinión de las y los autores de los artículos las normas no fueron observadas, y su inobservancia llevó a que se dictaminase una decisión injusta. Frases del estilo "Voy a tomar una decisión revolucionaria, dejando de lado la ley, porque por la ley no se puede condenarlo de ninguna manera”, dichas en los juicios por las más altas autoridades judiciales militares y civiles, hoy son conocidas gracias a quienes se abocaron al trabajo de escuchar los audios de aquellas sesiones, nutriendo las reflexiones que argumentan sobre el imperativo de la hora: restablecer el estado de derecho y absolver al presidente Lula Da Silva
    corecore