6 resultados para Cópulas variantes no tempo
em SAPIENTIA - Universidade do Algarve - Portugal
Resumo:
Tese dout., Literatura, Universidade do Algarve, 2008
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Dissertação mest., Qualidade em Análises, Universidade do Algarve, 2007
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O presente artigo expõe o resultado prático duma análise comparativa, ao nível da intriga, dentro de um amplo e variado corpus hispanoamericano do romance La aúltera. A busca de elementos comuns e distintivos nas 42 versões submetidas a estudo revela a existência de dois tipos do romance. Um corresponde às versões procedentes dos Estados Unidos, México e Nicaragua (tipo 1); o outro engloba os textos recompilados em Cuba, República Dominicana, Porto Rico, Venezuela, Colômbia, Perú, Chile, Argentina e Uruguai (tipo 2). Enquanto o primeiro evoluiu de acordo com o sistema de valores dos seus re-criadores, o segundo manteve-se mais apegado à tradição herdada. Embora ambos os tipos conservem aspectos concomitantes suficientes, especialmente ao nível do significante, de modo a que se possa continuar a falar de um só romance, a presença ou ausência de uma vasta série de motivos comentados cinge-se, com uma precisão surpreendente, aos limites marcados pelos dois tipos.
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Dissertação de mest., Engenharia Biológica, Faculdade de Ciências e Tecnologia, Univ. do Algarve, 2011
Resumo:
The human genome has millions of genetics variants that can affect gene expression. These variants are known as cis-regulatory variants and are responsible for intra-species phenotypic differences and individual susceptibility to disease. One of the diseases affected by cis-regulatory variants is breast cancer. Breast cancer is one of the most common cancers, with approximately 4500 new cases each year in Portugal. Breast cancer has many genes mutated and TP53 has been shown to be relevant for this disease. TP53 is one of the most commonly mutated genes in human cancer and it is involved in cell cycle regulation and apoptosis. Previous work by Maia et al has shown that TP53 has differential allelic expression (DAE), which suggests that this gene may be under the influence of cis-regulatory variants. Also, its DAE pattern is totally altered in breast tumours with normal copy number. We hypothesized that cis-regulatory variants affecting TP53 may have a role in breast cancer development and treatment. The present work aims to identify the cis-regulatory variants playing a role in TP53 expression, using in silico, in vitro and in vivo approaches. By bioinformatic tools we have identified candidate cis-regulatory variants and predicted the possible transcription factor binding sites that they affect. By EMSA we studied DNA-protein interactions in this region of TP53. The in silico analysis allowed us to identified three candidate cis-regulatory SNPs which may affect the binding of seven transcription factors. However, the EMSA experiments have not been conclusive and we have not yet confirmed whether any of the identified SNPs are associated with gene expression control of TP53. We will carry out further experiments to validate our findings.
Resumo:
Dissertação de mestrado, Biologia Molecular e Microbiana, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015