Дисертації з теми "46L87"
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Zeng, Kai. "Some problems in harmonic analysis on twsited crossed products." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2023. http://www.theses.fr/2023UBFCD048.
This thesis is devoted to the study of some problems in the harmonic analysis on twisted crossed products defined by twisted actions of a locally compact group G on a von Neumann algebra M. It consists of two parts. The first concerns twisted crossed products and their Fourier and Schur multipliers. We prove that the property of being QWEP for the twisted von Neumann algebra of a group G is independent of the underlying 2-cocycle and that the completely bounded Lp-Fourier multipliers on this twisted algebra are also independent of the 2-cocycle. Under the hypothesis of an amenable action, we establish several transference results between the Fourier and Schur multipliers on the noncommutative Lp spaces of the twisted crossed product.In the second part, we study Fourier multiplier commutators on the twisted crossed product of an Euclidean space. We characterize their Schatten p-class membership by that of their symbols in the associated Besov space. In addition, this part contains a formula on the Dixmier trace, which also gives us a characterization of the weak Schatten p-class membership of these commutators by a Sobolev space. In particular, our results apply to the case of quantum Euclidean spaces
Thomas, Michael. "Same-sex marriage, civil partnerships and stigma : coming in from the cold?" Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/46287/.
Burgess, Katy V. "Associative analyses of reasoning-like behaviour in rats." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/46487/.
Taghavi, N. "Facing the conflicts and complicities between capitalist modernisation and Islamisation : a study of women's subjectivities and emancipatory struggles in Iran." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/46387/.
Schmitz, Anna-Lena [Verfasser]. "Novel insights into mechanisms and selectivity of the heterotrimeric G protein inhibitors BIM-46187 and FR900359 / Anna-Lena Schmitz." Bonn : Universitäts- und Landesbibliothek Bonn, 2015. http://d-nb.info/1101575689/34.
Reeve, Jonathan Mark. "Learning algorithms for the control of routing in integrated service communication networks." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4687/.
Katikireddi, Srinivasa Vittal. "The relationship between evidence and public health policy : case studies of the English public health white paper and minimum unit pricing of alcohol in Scotland." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4687/.
Berardi, Giuseppe. "Caratterizzazione neurofisiologica e analisi del segnale neuronale dopaminergico in un modello animale di schizofrenia." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4687/.
Biller, Patrick. "Hydrothermal processing of microalgae." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/4687/.
Edwards, Alison A. "Tetrahydrofuran based sugar amino acids as foldamers and library scaffolds." Thesis, University of Kent, 2003. https://kar.kent.ac.uk/4687/.
Trenti, Enrico <1983>. "Le società pubbliche a partecipazione regionale e locale operanti nei settori dei servizi pubblici locali e dei servizi “strumentali” e quelle con scopo lucrativo: la recente evoluzione legislativa, gli ambiti di attività ed i relativi limiti, le prospettive future." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4687/.
In the first part, it aims to provide a nearly exhaustive list of the main provisions of public companies of regional and local level operating in the field of local public services and their legal and doctrinal interpretation, building on the recent legislative actions. In the second part , is faced, however, the issue of legislative limits the capacity for action of public companies and related questions of interpretation, in light of the jurisprudential and doctrinal. In particular, the analysis is for the art. Decree 13 of the "Bersani" and paragraph 9 of article. 23 bis (now slavishly transfused in the paragraph of Article 33. 4 of Decree Law 138/2011), ie the main provisions that define, respectively, the capacity of action of society (public participation) equipment and those working in the field of services Local public holders of direct loans (assentiti public in different ways by the evidence). Provides an outline of classification in relation to the cd. process of reorganization of the public company shares provided by the Finance Act of 2008 (Article 3, paragraphs 27 to 32). The combined effect of these rules, as interpreted by the Constitutional and administrative jurisprudential, are obtained, then, useful information regarding the extent to which local governments can set up companies with lucrative purposes only (ie, corporate entities with no relationship instrumentality or participants with local constituents, called to work in a competitive, in sectors fully liberalized ) and company cd. multi-utilities (whose corporate purpose complex, whose activity is manifested both in the field of instrumental services as in the interest of local public services), and in relation to the regime applicable to the activity of these corporate entities. The ultimate purpose of the contribution consists in identifying guidelines for the classification of public companies according to their activities.
Klassen, liliane Maria Bacaro. "Metilação do DNA e marcas de histonas H3k4m3 e H3k27m3 em intron regulam a expressão do gene mmp9 em câncer de mama." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/46087.
Coorientador : Profª. Edneia A. S. R. Cavalieri
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Ciencias Biológicas (Microbiologia, Parasitologia e Patologia Básica). Defesa: Curitiba, 26/08/2016
Inclui referências : f. 71-86
Área de concentração: Patologia
Linha de pesquisa: Epigenética e câncer
Resumo: As metástases são a causa das mortes por câncer em 90% dos casos. No processo de metástases a destruição ou degradação da matriz extracelular é muito importante para o deslocamento das células tumorais malignas. Este processo é mediado por diversas enzimas, destacando-se a gelatinase B ou MMP-9. A epigenética estuda mecanismos de regulação da expressão gênica utilizando a metilação do DNA (em citosinas adjacentes a guaninas) e modificações pós-traducionais de histonas como principais mediadores. As ilhas de CpGs ao longo do promotor podem ser hipermetiladas e assim promover o silenciamento gênico e vice-versa. A partir deste conhecimento vem sendo utilizados diversos análogos de citosina a fim de inibir o processo de metilação de DNA. Nesse sentido esta em avançado estudo clínico o uso do 5-aza-2'- deoxicitosina (5-azadC) ou decitabine em alguns tipos de leucemias e doenças mielodisplásicas e provável inicio de utilização em tumores sólidos. Neste estudo o objetivo foi avaliar a expressão do gene MMP9 em linhagens de câncer de mama e com esses dados estudar o efeito da metilação do DNA e modificações de histonas no promotor e corpo do gene com e sem tratamento com decitabine. Para isso clonamos e sequenciamos uma região contendo CpGs da região promotora do gene MMP9 e também e ilhas de CpG no corpo do gene utilizando linhagens tumorais, PMC42, HeLa, MCF7 e MDA-MB-436. As linhagens MCF7 e MDA-MB-436 expressam baixos níveis de MMP9. Apos o tratamento destas 5- azadC foi observado aumento da expressão do gene e proteína MMP-9. O sequenciamento de CpGs na região promotora revelou que a metilação do DNA regula a expressão deste gene nas linhagens tumorais. Além disso a análise em amostras tumorais de pacientes que expressam MMP-9 também possuem estes CpGs desmetilados. A região intragênica contém 4 ilhas de CpG que foram clonadas em 2 fragmentos e denominadas CGI1 e CGI2. A CGI1 é altamente metiladas com ou sem tratamento com decitabine nas linhagens tumorais. Por outro lado a CGI2 apresentou alguns CpGs nas posições 12 a 30 que estavam metilados nas linhagens tumorais sem tratamento com decitabine, e que são desmetiladas após o tratamento. Novamente os resultados de contrapartida com amostras de tumores primários, estes mesmos CpGs encontraram-se desmetilados nos tumores mais agressivos e com presença de MMP-9 na imunohistoquímica. Afim de se avaliar o provável envolvimento de modificações de histonas foi realizada a imunoprecipitação de cromatina para as marcas de cromatina para abertura H3K4me3 e fechamento H3K27me3. Utilizando a linhagem MCF7 observou-se que após o tratamento com decitabine houve o enriquecimento da marca de abertura na região promotora onde se ligam os fatores de transcrição AP1 e NFkB. Além disso os CpGs 12-30 da CGI2 também apresentaram aumento da marca de abertura. Em conjunto esses resultados mostram um provável novo mecanismo de regulação da expressão gênica através de CpGs localizados em íntron no gene MMP9. Esses resultados são importantes no contexto do entendimento de mecanismos de expressão de MMP-9 em câncer de mama e também para o estudo de possível efeito de ativação de metástases com o uso do medicamento decitabine.
Abstract: Metastases are the cause of cancer deaths in 90% of cases. In the process of metastasis destruction or degradation of extracellular matrix it is important for the displacement of malignant tumor cells. This process is mediated by several enzymes, especially B-gelatinase or MMP-9. Epigenetic studies of regulatory mechanisms of gene expression using DNA methylation (adjacent cytosine to guanine) and post-translational modifications of histones as major mediators. The CpG islands along the promoter may be hypermethylated and thus promote gene silencing and vice versa. From this knowledge different cytosine analogues are used to inhibit the DNA methylation process. Accordingly this in advanced clinical study using 5-aza-2'-deoxicitosine (5-azadC) or decitabine in some types of leukemias and myelodysplastic diseases and probable beginning of use in solid tumors. In this study our goal was to evaluate the expression of MMP9 gene in breast cancer cell lines and study the effect of DNA methylation and histone modifications in the promoter gene and intragenic region with and without treatment with decitabine. To this we have cloned and sequenced a region containing CpGs of the MMP9 promoter region and CpG islands in the gene's body using tumor cell lines, PMC42, HeLa, MCF7 and MDA-MB-436. The lines MCF7 and MDA-MB-436 expressed low levels of MMP9. After treatment with 5-azadC was observed an increase in the gene expression and MMP-9 protein. The sequencing CpGs in the promoter region revealed that the DNA methylation regulates the expression of this gene in tumor cell lines. Further analysis of tumor samples from patients expressing MMP-9 also have these demethylated CpGs. The MMP9 intragenic region contains 4 CpG islands that were cloned in two fragments and called CGI1 and CGI2. The CGI1 was highly methylated with or without treatment with decitabine in tumor cell lines. On the other hand CGI2 have showed some CpGs in positions 12 to 30 that were methylated in tumor cell lines without treatment with decitabine, and are demethylated following treatment. Again counterpart results with primary tumor samples, the same CpG were demethylated in more aggressive tumors of MMP-9 positive in immunohistochemistry. In order to evaluate the probable involvement of histone modifications was performed chromatin immunoprecipitation to chromatin marks for H3K4me3 H3K27me3 opening and closing respectivelly. Using the MCF7 it was observed that after treatment with decitabine was enriching the opening tag in the promoter region which bind transcription factors NFkB and AP1. Additionally the CpG 12-30 of CGI2 also increased too. Together these results showed a possible new mechanism for regulation of gene expression through CpGs located in intron in MMP9 gene. These results are important in the context of understanding of MMP-9 expression mechanisms in breast cancer and also for the study of possible metastases activation with the use of decitabine drug.
Mattei, Aline Padilha. "Aplicabilidade do model developing nurses' thinking para o desenvolvimento do raciocínio clínico em graduandos de enfermagem." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46987.
Coorientadora: Profª Drª Mary Gay McCaffery Tesoro
Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências da Saúde, Programa de Pós-Graduação Mestrado Profissional em Enfermagem. Defesa: Curitiba, 09/02/2017
Inclui referências : f.100-108
Resumo: Introdução: O modelo Developing Nurses' Thinking (DNT) é uma metodologia de ensino cujo preditivo é direcionar o estudante de enfermagem durante a avaliação de casos clínicos fictícios ou reais. Esse modelo consiste em apoio ao raciocínio clínico, organizando pistas ou vestígios quase imperceptíveis, para que o acadêmico identifique os diagnósticos acertados que subsidiem um plano de cuidados adequado, valendo-se de suporte para a sistematização da assistência durante a problematização e construção de diagnósticos de enfermagem, visando às melhores competências assistenciais. Justificativa: estudos com emprego de diferentes metodologias de ensino entre graduandos de enfermagem representam uma possibilidade de aprimoramento da prática profissional, sob a perspectiva de promover a precisão diagnóstica e desenvolver o pensamento crítico, que resultem em intervenções eficazes e seguras, contribuindo para o ensino, pesquisa e segurança da assistência à saúde. Objetivo: Descrever e analisar a aplicabilidade do Developing Nurses' Thinking Model em estudantes de enfermagem brasileiros. Método: Quase experimental concomitante a grupos de intervenção e controle dispostos em seis grupos amostrais, realizado entre agosto e outubro de 2015 com estudantes do quarto ao nono período de enfermagem da Universidade Federal do Paraná. Durante a pesquisa foram aplicados para ambos os grupos pré e pós-teste, denominados tutoriais, contendo instrumento de coleta de dados sociodemográfica, modelo DNT, estudos de casos e instrumento de avaliação. Com o grupo de intervenção foram desenvolvidas atividades educativas em oficinas e temas em ensino clínico, precisão diagnóstica, pensamento crítico, segurança do paciente e modelo DNT. Resultados: Participaram 76 estudantes, aqueles que sofreram intervenção educativa na aplicação do modelo tiveram melhor compreensão e desempenho na identificação de problemas/diagnósticos de enfermagem; a aplicabilidade do modelo foi considerada satisfatória. Conclusões: O modelo DNT fornece uma série de requisitos para o desenvolvimento do processo de enfermagem, estimula a análise de situações de risco, contribuindo para o ensino da segurança do paciente e direcionando o planejamento de cuidados de enfermagem. A descrição dos passos e métodos usados na aplicação do modelo nesta pesquisa subsidia sua aplicabilidade entre estudantes brasileiros; bem como oportuniza melhorias para futuros estudos. Palavras-chave: Pensamento crítico*. Precisão diagnóstica*. Raciocínio clínico*. Metodologia. Educação superior. Processos de enfermagem. *descritores não disponíveis no DeCS, porém imprescindíveis para a construção do estudo.
Abstract: The Developing Nurses' Thinking (DNT) model is an educational methodology that aims to guide Nursing students on either real or hypothetical clinical evaluations. This model is based on supporting the clinical reasoning by organizing clues or barely imperceptible traces. Thus, the researcher is able to identify correct diagnosis in order to validate adequate health care plans. By these means, the academic can make use of a data-basis to support the assistance systematization during the problem seeking and Nursing diagnosis development targeting better assistance approaches. Justification: Essays on different teaching methodologies for Nursing academics depict a possibility of enhancing the professional practice under the viewpoint of promoting diagnosis accuracy and critical thinking development. Those should result in efficient and healthy procedures which contribute to health assistance education, research and safety. Goal: To analyze the applicability of Developing Nurses' Thinking model on bachelor of Nursing Brazilian students. Method: This research has a considerably quasi-experimental design which gathers intervention and controlling groups disposed in six sample groups. It took place from August to October of 2016 among students from the fourth to ninth semester of the Nursing program at Universidad Federal do Paraná. During the research, each group was submitted to pretests and posttests denominated tutorials which contained sociodemographic interviews, DNT models with four case studies, and evaluation questionnaires. Educational activities were also developed within the intervention group. They were organized in twelve four-hour workshops that approached topics on clinical education, diagnostic accuracy, critical thinking, patient safety and DNT. Outcomes: The intervention group was composed by 37 fourth, sixth and eighth semester students while 39 fifth, seventh and ninth semester students were part of the controlling group. When comparing the groups' performance, a higher number of problems were identified by the intervention group. As a DNT result, the majority of participants agreed on the model's positive characteristics. Conclusion: The DNT model provides a range of requirements to the Nursing process. It is a compact methodology that encompasses the critical thinking predictive control that is essential to the diagnosis process practice. Its application stimulates the analysis of risky situations and thus contributes to patient's safety education and care. Keywords: Critical Thinking *. Diagnostic accuracy *. Clinical reasoning *. Methodology. College education. Nursing processes. *descriptors are not available at DeCS, although being indispensable to the study development.
Fraga, Junior Carlos Augusto Vidigal. "O gênero Cladonia P. Browne (Ascomycota liquenizados) em ambientes de restinga no litoral do Estado do Espírito Santo." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/46187.
Coorientador : Dr. Emerson Luis Gumboski
Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Botânica. Defesa: Curitiba, 18/11/2016
Inclui referências : f. 34-41;64-68;93-95
Área de concentração: Taxonomia, biologia e diversidade de algas e liquens
Resumo: As restingas brasileiras abrigam uma grande diversidade de espécies de fungos liquenizados, no entanto, no estado do Espírito Santo, os registros são escassos e pouco explorados. O gênero Cladonia é o mais expressivo dentro da família Cladoniaceae, contando com aproximadamente 500 espécies. É caracterizado pelo talo dimórfico ou também denominado cladoniforme, geralmente apresentando uma estrutura horizontal, crustosa ou esquamulosa, denominado talo primário, e uma estrutura normalmente ereta, denominada talo secundário ou podécio. Este trabalho teve por objetivo ser o primeiro a investigar extensivamente o gênero Cladonia nas restingas capixabas, caracterizando sua morfologia, produção de metabólitos secundários e tendências ecológicas, assim como proporcionar meios para identificação como chaves e ilustrações, contribuindo para o conhecimento da liquenobiota capixaba. Foram realizadas 12 excursões de coleta nos meses de Janeiro, Fevereiro e Julho de 2015. Os exemplares coletados foram depositados nos herbários da Universidade Federal do Paraná (UPCB) e da Universidade Federal do Rio Grande do Sul (ICN). As análises morfológicas e anatômicas de importâcia taxonômica foram realizadas sob microscópio estereoscópico e óptico. Para as análises químicas, foram realizados testes de coloração do talo, observação sob luz UV e cromatografia em camada delgada. Para as ilustrações foi utilizada câmera fotográfica. Dos 554 exemplares coletados foram identificadas 27 espécies de Cladonia das quais, C. tuberosa Fraga-Junior, Gumboski & Eliasaro e C. capixaba Fraga-Junior, Gumboski & Eliasaro são descritas como novas para a ciência, e nove são novos registros para o estado: C. consimilis Vain., C. corallifera (Kunze) Nyl., C.crustacea Ahti, C. dendroides (Abayes) Ahti, C. pityrophylla Nyl., C. polyscypha Ahti & L. Xavier, C. salzmannii Nyl., C. sphacelata Vain., C. subminiata S. Stenroos. Confirmamos a ocorrência de C. sprucei Ahti e C. rangiferina subsp. abayesii (Ahti) Ahti & DePriest. Não confirmamos a ocorrência das seguintes espécies previamente citadas: C. bahiana Ahti, C. coccifera (L.) Willd., C. kalbii (Ahti) Ahti & DePriest e C. rugicaulis Ahti. Palavras-chave: Cladoniaceae, fungos liquenizados, sudeste brasileiro, taxonomia
Abstract: The Brazilian restinga shelters a great diversity of species of lichenized fungi, however, in the state of the Espírito Santo, the records are scarce and little explored. The genus Cladonia is the most expressive in the Cladoniaceae, with approximately 500 species. It is characterized by dimorphic thallus or also called cladoniiform, usually exhibiting a horizontal thallus, crustose or squamulose called primary thallus, with an usually erect structure, called secondary thallus or podetia. This study aimed to be the first to extensively investigate the genus Cladonia in the restinga vegetation of Espirito Santo, characterizing their morphology, production of secondary metabolites and environmental trends, and provide ways for identification such as identification keys and illustrations, contributing to the knowledge of Espírito Santo state lichenobiota. 12 collection expeditions were held between January, February and July of 2015. The collected specimens were deposited in the herbarium of the Federal University of Paraná (UPCB) and Federal University of Rio Grande do Sul (ICN). The morphological and anatomical analyses were performed under stereoscopic and opitc microscope. For chemical analysis, coloring tests, observation under UV light and thin layer chromatography were done. For the illustrations, a digital camera was used. From the 554 collected specimens, we identified 27 species of Cladonia of which, C. tuberosa Fraga-Junior, Gumboski & Eliasaro and C. capixaba Fraga-Junior, Gumboski & Eliasaro are described as new to science, and nine are new records for the state: C. consimilis Vain, C. corallifera (Kunze) Nyl., C.crustacea Ahti, C. dendroides (Abayes) Ahti, C. pityrophylla Nyl., C. polyscypha Ahti & L. xavier, C. salzmannii Nyl., C. sphacelata Vain., C. subminiata S. Stenroos. We confirmed the occurrence of C. sprucei Ahti and C. rangiferina subsp. abayesii (Ahti) Ahti & DePriest. We could not confirm the occurrence of previously mentioned species: C. bahiana Ahti, C. coccifera (L.) Willd., C. kalbii (Ahti) Ahti & DePriest and C. rugicaulis Ahti. Keywords: Cladoniaceae, lichenized fungi, southeastern Brazil, taxonomy
Ferri, Junior. "Abordagem modular baseada em dicionário para reconhecimento de entidades nomeadas através de associação aproximada." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/46487.
Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Exatas, Programa de Pós-Graduação em Informática. Defesa: Curitiba, 29/08/2016
Inclui referências : f. 47-50
Área de concentração: Ciência da computação
Resumo: As técnicas de extração de informações estão sempre evoluindo para serem capazes de trabalhar com a quantidade crescente de dados disponíveis através de textos em linguagem natural e não estruturados. Destacamos a subtarefa da extração de informação conhecida como reconhecimento de entidades nomeadas baseado em dicionário, que realiza a identificação de sequências de caracteres que representam entidades de um determinado grupo, e o bom desempenho dessa subtarefa é fundamental para um bom processo de extração de informação. O reconhecimento de entidades nomeadas (NER) permite definir os sujeitos que são abordados pelo texto como organizações, pessoas, locais, etc. Pontos que ainda são desafios dentro da subtarefa de NER para sistemas baseados em dicionário são a presença de erros ortográficos nos textos e a existência de poucos sistemas de NER capazes de trabalhar em diferentes contextos. Esse trabalho apresenta uma abordagem para o reconhecimento de entidades nomeadas baseado em dicionário. Para trabalhar com textos que podem apresentar erros ortográficos, é utilizada uma busca por associação aproximada baseada na distância de edição entre as sequências de caracteres que representam a entrada do dicionário e as sub-partes do texto. Para promover a redução do erro entre as sequências de caracteres (SC) e facilitar a busca por associação aproximada são utilizados algoritmos de transformação. Esses algoritmos permitem a busca sobre o dicionário encontrar uma quantidade maior de entidades se comparada com as buscas utilizando as SCs originais para um mesmo valor da distância de edição aceita. As transformações também colaboram com a redução do tamanho das SCs e com a criação de mais prefixos similares, promovendo uma redução no tamanho da árvore de prefixo que indexa o dicionário. Para melhorar a precisão da nossa abordagem, disponibilizamos recursos de filtragem que fazem uso de métricas de similaridade para eliminar entidades falsas que foram retornadas da busca sobre o dicionário. Nossa abordagem também foi projetada para permitir a configuração de alguns componentes de forma a ser adaptada para diferentes casos de estudo. Palavras-chave: Reconhecimento de entidades nomeadas, Associação Aproximada de Sequências de Caracteres, Conversão fonética.
Abstract: The information extraction techniques are always evolving to be able to work with the increasing amount of unstructured data available through texts in natural language. We highlight the information extraction subtask known as dictionary-based named entity recognition, which performs the identification of strings that represent entities of a particular group, and the good performance of this sub-task is critical for a good extracting information process. The named entity recognition (NER) defines the nouns that are covered by the text as organizations, people, places, etc. Some subjects that still represent chalenges in the sub-task of NER for currently systems that are dictionary-based are the presence of spelling errors in the text and the existence of few NER systems that are able to work in different contexts. This work presents an approach of a dictionary-based named entity recognition. Looking to work with texts that may have spelling errors, we use an approximate string matching search based on edit distance between the strings that represent the entries of the dictionary and the substrings of the text. To further the reduction of the error between the strings and facilitate the search using approximate matching we used transformation algorithms. These algorithms allow the search on the dictionary find a greater amount of entities if compared with the search using the original strings, for the same value of Edit Distance. Transformations also promote the strings size reduction and create more similar prefixes, promoting a reduction in the size of the prefix tree (trie) that indexes the dictionary. To improve the precision of our approach, we provide filtering capabilities that make use of similarity metrics to eliminate false entities that have been returned from the search on the dictionary trie. Our approach is also designed to enable the configuration of some components to be adapted to different study cases. Keywords: Named entity recognition, Approximate string matching, Phonetic conversion.
Sahota, Ranveer. "Readiness for student practice education questionnaire : content validation." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46287.
Sanford, Nicole Alexandra. "Symptom-related attributional biases in schizophrenia and bipolar disorder." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46387.
Jahanmardi, Maryam. "British-Persian relations in the Sherley dossier (1598-1626)." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46487.
Infante, Maria Cristina. "Building an ecosystem services value at risk conceptual framework for sustainability, efficiency and fairness in resource management : starting values from marine ecosystems." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46587.
Postlethwaite, Benjamin. "Seismic velocities and composition of the Canadian crust." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46687.
Smalley, Daniel E. "High-resolution spatial light modulation for holographic video." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46587.
Vita.
Includes bibliographical references (p. 87-89).
The goal of the proposed research is to further the fabrication of a high-bandwidth two-axis scanning device. The device is intended for use in a holographic video geometry built specifically to take advantage of the new modulator's high-bandwidth and vertical-deflection capabilities, but it could also be used in many developing 3D display systems which currently require high-bandwidth light modulation. The modulator will have a spatial frequency bandwidth one order-of-magnitude greater than current light modulation technologies and be two orders of magnitude less expensive.
by Daniel E. Smalley.
S.M.
Alam, Mohammad-Reza. "Interaction of waves in a two-layer density stratified fluid." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46487.
Includes bibliographical references (leaves 273-282).
In the first part of this thesis, the mechanisms of nonlinear resonant interaction of surface-interfacial waves with a rippled bottom in a two-layer density stratified fluid in two dimensions is investigated via perturbation analyses and direct simulation. Three classes of Bragg resonances are found to exist if the nonlinear interactions up to third order in the wave/ripple steepness are considered. At second order, class I Bragg resonance occurs involving two surface and/or internal waves and one bottom ripple component. At third order, class II and III Bragg resonances occur involving resonant interactions of four wave/ripple components. A powerful high-order spectral (HOS) method for nonlinear gravity wave dynamics in a homogeneous fluid is extended to the case of a two-layer fluid over non-uniform bottom. The method is capable of capturing the nonlinear interactions among large number of surface/interfacial wave mode and bottom ripple components up to an arbitrary high order. As an illustration of the usefulness of the numerical method a somewhat complicated problem involving many wave/bottom components is considered and it is shown that the ensuing multiple (near) resonant interactions result in the generation of multiple new transmitted/reflected waves that fill a broad wavenumber band eventually leading to loss of order and chaotic motion. In the second part of this thesis, Resonance between waves of an oscillating/translating disturbance in two-layer density stratified fluids is studied. Waves in homogeneous fluid are known to be non-resonant at the second order. Many seas and oceans, however, are weakly stratified. Here it is shown that in the presence of stratification triad resonance between ship-generated waves can occur. For the more general problem and as an independent validation, the HOS is extended to consider the effect of the current and an oscillating submerged singularity. Direct simulation results compare well with analytical predictions in the near- and far-fields and offer a powerful tool for practical problems with general time-dependent motions/interactions of one or more bodies.
by Mohammad-Reza Alam.
Ph.D.
Baker, Peter R. (Peter Ross). "Three dimensional printing with fine metal powders." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/46287.
Includes bibliographical references (leaf 97).
In the area of direct metal part manufacture, the 3DPTM process has several inherent advantages over traditional machining and P/M technologies: hard tooling is not required to manufacture parts, geometries may be created which can not be made by conventional processes, and the composition of parts may be controlled locally on a 100 gm scale. The surface finish of 3DPTM parts will be a key factor in the determination of what parts are candidates for direct manufacture via the 3DPTM process. Powder size is the limiting factor in the determination of the surface finish of 3DPTM parts. On the micro scale, it determines the roughness due to particle arrangement, and on the macro scale it determines the thinnest layers from which parts may by built. The 3DPTM process has been adapted to a fine metal powder (ten micron particle diameter) material system. Powder spreading, ink-jet technology, and the effect of print parameters on printing with fine metal powders have been examined. Powder spreading experiments were conducted to examine the limits of layer thickness and packing density. 420 ss, S-7 tool steel, and 316L ss powderbed beds were generated in fifty micron layers. Packing densities of 55%, 59% and 59% respectively were obtained for the three powders. Line printing experiments were conducted with both continuous jet (CJ) and drop on demand (DOD) printheads to examine the relationship between droplet frequency, droplet spacing and the quality of printed lines. Lines were printed at droplet frequencies ranging from 100 Hz to 40 kHz and with droplet spacings from ten to fifty microns. Low print frequencies and small droplet spacings result in the highest quality lines. A droplet spacing of thirty microns and a droplet frequency of 667 Hz was chosen for the printing of 3-D parts with a Hewlett- Packard DOD printhead. 3-D part geometries were generated using fifty micron layers of ten micron 420 ss powder. These parts demonstrated the improvement in surface finish achieved with fine metal powders and the capability to create parts from fields identified as promising for the direct fabrication of metal parts via the 3DPTM process.
by Peter R. Baker, Jr.
S.M.
Jacobs, Robert N. (Robert Nathan). "A wireless sensor-based mobile music environment complied from a graphical language." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/46087.
Includes bibliographical references (p. 79-80).
In this thesis I demonstrate a framework for a wireless sensor-based mobile music environment. Most prior work has not been truly portable. Those that were have focused on external data as opposed to properties of the listener. In this project I built a short-range wireless sensor network (using the ZigBee protocol and an accelerometer) and a compiler for PureData, a graphical music processing language. With these parts, I realized a synchronized music experience that generates a soundtrack based on the listener's movement. By synchronizing the music to the user's natural rhythms, it encourages the user to maintain a given pace for a longer period of time. I describe extensions to this example that point to a future of portable interactive music tied to exercise and physical activity.
by Robert N. Jacobs.
M.Eng.
Harsha, Pavithra. "Mitigating airport congestion : market mechanisms and airline response models." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/46387.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (leaves 157-165).
Efficient allocation of scarce resources in networks is an important problem worldwide. In this thesis, we focus on resource allocation problems in a network of congested airports. The increasing demand for access to the world's major commercial airports combined with the limited operational capacity at many of these airports have led to growing air traffic congestion resulting in several billion dollars of delay cost every year. In this thesis, we study two demand-management techniques -- strategic and operational approaches -- to mitigate airport congestion. As a strategic initiative, auctions have been proposed to allocate runway slot capacity. We focus on two elements in the design of such slot auctions -- airline valuations and activity rules. An aspect of airport slot market environments, which we argue must be considered in auction design, is the fact that the participating airlines are budget-constrained. -- The problem of finding the best bundle of slots on which to bid in an iterative combinatorial auction, also called the preference elicitation problem, is a particularly hard problem, even more in the case of airlines in a slot auction. We propose a valuation model, called the Aggregated Integrated Airline Scheduling and Fleet Assignment Model, to help airlines understand the true value of the different bundles of slots in the auction. This model is efficient and was found to be robust to data uncertainty in our experimental simulations.
(cont.) -- Activity rules are checks made by the auctioneer at the end of every round to suppress strategic behavior by bidders and to promote consistent, continual preference elicitation. These rules find applications in several real world scenarios including slot auctions. We show that the commonly used activity rules are not applicable for slot auctions as they prevent straightforward behavior by budget-constrained bidders. We propose the notion of a strong activity rule which characterizes straightforward bidding strategies. We then show how a strong activity rule in the context of budget-constrained bidders (and quasilinear bidders) can be expressed as a linear feasibility problem. This work on activity rules also applies to more general iterative combinatorial auctions.We also study operational (real-time) demand-management initiatives that are used when there are sudden drops in capacity at airports due to various uncertainties, such as bad-weather. We propose a system design that integrates the capacity allocation, airline recovery and inter-airline slot exchange procedures, and suggest metrics to evaluate the different approaches to fair allocations.
by Pavithra Harsha.
Ph.D.
Tanino, Yukie 1980. "Flow and solute transport in random cylinder arrays : a model for emergent aquatic plant canopies." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46787.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 159-166).
With wetlands constituting about 6% of earth's land surface, aquatic vegetation plays a significant role in defining mean flow patterns and in the transport of dissolved and particulate material in the environment. However, the dependence of the hydrodynamic and transport processes on fundamental properties of an aquatic plant canopy has not been investigated systematically over the wide range of conditions that are observed in the field. A laboratory investigation was conducted to describe flow and solute transport in idealized emergent plant canopies. This thesis presents laboratory measurements of the mean drag, turbulence structure and intensity, and lateral dispersion of passive solute in arrays of randomly-distributed cylinders, a model for emergent, rigid aquatic plants. Mean drag per cylinder length normalized by the mean interstitial fluid velocity and viscosity increases linearly with cylinder Reynolds number. In contrast to the dependence previously reported for sparse arrays at Reynolds numbers greater than 1000, the drag coefficient increases with increasing cylinder density in intermediate and high cylinder densities. In dense arrays, turbulent eddies are constrained by the interstitial pore size such that the integral length scale is equal to the mean surface-to-surface distance between a cylinder in the array and its nearest neighbor. The classic scale model for mean turbulence intensity, which is a function of the inertial contribution to the drag coefficient, the solid volume fraction, and the integral length scale of turbulence normalized by d, is then confirmed with our laboratory measurements. Our laboratory experiments demonstrate that Kyy/ (d), the asymptotic (Fickian) lateral dispersion coefficient normalized by the mean interstitial fluid velocity and d, is independent of Reynolds number at sufficiently high Reynolds number.
(cont.) Although previous models predict that asymptotic lateral dispersion increases monotonically with cylinder density, laboratory measurements reveal that lateral dispersion at high Reynolds number exhibits three distinct regimes. In particular, an intermediate regime in which Kyy/ (d) decreases with increasing cylinder density is observed. A scale model for turbulent diffusion is developed with the assumption that only turbulent eddies with integral length scale greater than d contribute significantly to net lateral dispersion. The observed dependence of asymptotic dispersion on cylinder density is accurately described by a linear superposition of this turbulent diffusion model and existing models for dispersion due to the spatially-heterogeneous velocity field that arises from the presence of the cylinders. Finally, laboratory measurements support the conjecture that Kyy/ (d) is not strongly dependent on Reynolds number in dense arrays at any Red. However, the distance required to achieve asymptotic dispersion is shown to depend strongly on the Reynolds number.
by Yukie Tanino.
Ph.D.
Thrash, Tunna E. 1975. "Commercial gentrification : trends and solutions." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/46687.
Suen, Benny (Benny Hung Kit) 1975. "Internet information aggregation using the Context Interchange framework." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46187.
by Benny Suen.
B.S.
M.Eng.
Roy, Mélanie. "Effets de l'injection de phencyclidine sur les comportements générés par l'animal ou imposés par l'expérimentateur chez le rat." Master's thesis, Université Laval, 2002. http://hdl.handle.net/20.500.11794/46487.
Zha, Wenwei. "Facilitating FPGA Reconfiguration through Low-level Manipulation." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/46787.
Ph. D.
Farooqi, Abdul Haseeb. "Thinking Architecture." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/46187.
Master of Architecture
Fomchenko, Nicole M. S. "Estimating the Components of a Wetland Water Budget." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46487.
Master of Science
Le, Roux L. "Difficulties in claiming prospective losses : can a comparative study provide a solution?" Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/46087.
Gabriel, Keshia C. "Comparison on the rules of origin for customs and excise." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/46187.
Dissertation (MCom)--University of Pretoria, 2014.
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MCom
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ALCANO, MATTEO CARLO. "Masculine identities, youth gangs and male sex work among East Javarese migrants in South Bali (Indonesia)." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/46087.
Vila, Corts Antoni. "Resolució de problemes de matemàtiques: identificació, origen i formació dels sistemes de creences en l'alumnat. Alguns efectes sobre l'abordatge dels problemes." Doctoral thesis, Universitat Autònoma de Barcelona, 2001. http://hdl.handle.net/10803/4687.
El Marc Teòric és el que ve descrit per la RP de Matemàtiques a l'escola i per les Creences de l'alumnat, a la vegada que per l'estreta relació assumida entre ambdues. En particular, abordem la RP des d'una visió curricular i adoptant el paper de mediadora de processos (Schoenfeld, 1991; Callejo, 1994; Abrantes, 1996; Deulofeu, 2000), incorporem els aspectes que intervenen en el procés de RP des d'un intent de no-separació dels dominis afectiu i cognitiu (McLeod, 1992; Gómez-Chacón, 1997) i en relació a la importància del context sòcio-cultural (Bishop, 1988). Paral·lelament, en el marc d'estudi dels SC proposat per McLeod (1992) i Pehkonen i Törner (1996), considerem el paper de les creences com a font d'explicació de les conductes i els obstacles de l'alumnat.
L'estudi ha integrat l'enfocament quantitatiu (totalitat de l'alumnat de 1r d'ESO d'un centre educatiu; estudi de Grup) i l'enfocament qualitatiu (un estudi més profund sobre 8 alumnes; estudi de Casos), integrant a la vegada en cadascun d'ells diferents mètodes de recollida de dades, i utilitzant com a principals instruments d'anàlisi la potència de les creences (centralitat psicològica) i els mapes (connexions i estructura en general, basant-nos en LLinares, 1992 i Green, 1971).
Els resultats (estructura del SC) ens han permès concloure que l'alumnat caracteritza el «problema de matemàtiques» com una categoria de pregunta escolar, de naturalesa aritmètica, que ve caracteritzada per aspectes formals de presentació, sense cap referència ni als coneixements del resolutor ni a la finalitat amb la qual és proposat. També concloim que es caracteritza la RP com una activitat de reconeixement / aplicació i a la vegada d'acreditació de les tècniques apreses a classe. Quant als esquemes d'actuació desenvolupats en la fase d'abordatge de problemes no estàndard, els més freqüentment observats són els descrits com ingenus, impulsius o irreflexius, i els consistents a donar resposta ràpida, fins i tot entre l'alumnat amb major rendiment acadèmic, descrivint-se a la vegada rellevants relacions entre aquests esquemes i elements del seu SC.
Quant a l'origen d'aquests SC, s'han descrit relacions entre el seu procés de formació i aspectes del propi context escolar (tasques rutinàries, treball amb RP clarament diferenciat de l'habitual, paper jugar pel professorat), aspectes externs al context escolar (pressions i experiències compartides amb familiars, mites socials) i alguns aspectes afectius.
The present study was conducted on twelve-year-old students. Its general targets are: identifying elements from belief systems (BS) about problem solving, analysing the relationship between such BS and the actions developed during the tackling of non-standard problems, and finally, identifying aspects relevant to the origins and formation of BS.
The theoretical framework to which we have contributed is that of Mathematical Problem Solving in the school (PS) and students' beliefs, as well as the close relationship between them. Specifically, considering we deal with PS from a curricular perspective and assuming the role of process mediator (Schoenfeld, 1991; Callejo, 1994; Abrantes, 1996; Deulofeu, 2000), we have included aspects of PS processes as proposed by McLeod (1992) and Gómez-Chacón (1997) in the sense that the afective and cognitive domains cannot be separated, and Bishop (1988) as to the importance of socio-cultural contexts. Likewise, within the framework of belief studying as proposed by McLeod (1992) and Pehkonen and Törner (1996), we have included the role of beliefs as sources of explanation for the behaviour of students and the hurdles encountered by them.
We have focused on both a quantitative study (all the twelve-year-old students from a secondary school, Group Study), and a qualitative one (an in-depth study conducted on eight students, Case Study).
From our results we have concluded that students categorise a "mathematical problem" as a school question on arithmetics, characterised by formal aspects of presentation, without a reference to either the knowledge acquired for PS, or the aim of the problem itself. We have also concluded that PS is categorised as an activity of identification / application of techniques worked upon in class, as well as the accountability of those techniques. As to the patterns of performance developed during the tackling of non-standard problems, we have concluded that the most frequent ones are those described as naive, impulsive, or irreflexive, and those involving quick answers, even among students with a higher academic standard in mathematics, where we have also found relationships between certain elements of their BS and these patterns of performance.
As to the origins of such BS, we have observed relationships between their process of formation and aspects of the school context itself (routine tasks, working on PS separated of working on mathematics, role of the teachers), aspects outside the school context (pressure, experiences shared with relatives, social myths), and certain aspects of emotion.
Brinkmeyer, Langford Candice Lea. "Integrated high-resolution physical and comparative gene maps in horses." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4687.
Tessier, D. F. "Cathodic hydrogen evolution and proton discharge from the unhydrated and hydrated states of the H3O⁽ ion at electrodes." Thesis, University of Ottawa (Canada), 1985. http://hdl.handle.net/10393/4687.
Musafiri, John James. "Perceptions of Bachelor of Nursing students at a university in the Western Cape about clinical learning opportunities and competence regarding the administration of oral medication." University of the Western Cape, 2015. http://hdl.handle.net/11394/4687.
Medication errors can result in harm and death, for which nurses are legally liable. The administration of medication by nurses can be improved through education and training to avoid medication errors in future. The study aimed to investigate fourth year Bachelor of Nursing students’ perceptions regarding the clinical learning opportunities and their competence in the administration of oral medication in a general hospital. A quantitative cross-sectional descriptive design was employed. The all-inclusive sample constituted 176 fourth year Bachelor of Nursing students. A total of 125 respondents completed the self- report questionnaires. Descriptive statistics were produced through data processing and univariate and bivariate analysis using of SPSS version 22. The study’s findings show that most of the 125 respondents were placed in a medical (92%, 115) and surgical ward (86.4%, 108). However, a total of 59.2% (74) of the 125 respondents did not practice administration of oral medication on a daily basis. The majority of the respondents perceived themselves as competent in the administration of oral medication. However, only a total of 19.2% (24) of the 125 respondents perceived themselves as competent in all 42 skills required for the correct procedure of administration of oral medication. A negative correlation was found between total self-assessment of competence scores and total clinical placement scores. An observation study, using the check list, of the competence of nursing students in the administration of medication is recommended to exclude bias associated with self-assessment. The use of simulation is recommended to enhance the opportunities and competence of the students in the administration of oral medication to many patients.
Moeder, Brenda S. "Moral decision making of university housing and residence life professionals." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4687.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on February 26, 2008) Vita. Includes bibliographical references.
Kowalski, Michael Władisław. "Comparative study of oscillatory integral, and sub-level set, operator norm estimates." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4687.
McKenzie, Heather. "Madame Chrysanthème as an item of nineteenth-century French Japonaiserie." Thesis, University of Canterbury. French, 2004. http://hdl.handle.net/10092/4687.
Harbison, Stephen Casey. "Evaluation of Pulmonary Risks Associated with Selected Occupations." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4687.
Fernandes, Crespo Nuno. "Convergência Real De Uma Economia Periférica Num Espaço Integrado - Uma Aplicação A Portugal No Contexto Da União Europeia." Doctoral thesis, Instituto Superior de Economia e Gestão, 2007. http://hdl.handle.net/10400.5/4687.
O conceito de convergência real entre espaços económicos, no seu sentido mais lato, ( traduz uma tendência de redjujcão do diferencial de desenvolvimento entre esses espaços. Neste trabalho, consideramos o caso de Portugal, no período subsequente à adesão à UE, tendo presente que o processo de convergência real português é influenciado pela sua posição geográfica relativa e pelo seu enquadramento institucional na UE. No plano teórico, procuramos transmitir a abrangência que caracteriza este domínio de investigação, retendo a mensagem central - contraditória em matéria de convergência real - que decorre de um vasto e diferenciado leque de perspectivas teóricas. No plano empírico, a análise desenvolvida desdobra-se em três vertentes complementares. Em primeiro lugar, estudamos a convergência real de Portugal relativamente ao espaço da UE. Em segundo lugar, adoptamos^uma perspectiva interna, avaliando a existência de convergência entre as regiões portuguesas (NUTS III e concelhos). No âmbito destas vertentes de análise, consideramos diferentes domínios em que se materializa o processo de convergência real português, dando, no entanto, ênfase especial à questão da convergência estrutural. Finalmente, seleccionamos um elemento específico susceptível de contribuir para o processo de convergência real, analisando-o detalhadamente. Em concreto, consideramos a questão relativa aos efeitos indirectos do IDE (spillovers).
The concept of real convergence between economic spaces represents, in its broad sense, a tendency to the reduction of the difference in their development levels. In this study, we consider the Portuguese case after the adhesion to the EU, bearing in mind that the Portuguese real convergence process is affected by its relative geographical location and by the institutional framework in the context of the EU. At theoretical level, we enhance the wide character of this research field, presenting the central message - non-consensual in terms of real convergence - emerging from a vast and differentiated group of theoretical perspectives. At empirical level, the analysis is developed in three different but complementary ways. First, we investigate the Portuguese real convergence in the context of the EU space. Second, we adopt an internal perspective, evaluating the existence of convergence between the Portuguese regions (NUTS III and concelhos). In both cases, we consider different topics of the Portuguese real convergence, emphasising structural convergence. Finally, we select and analyse in detail a specific factor which may promote the real convergence process. In this case, we consider the FDI indirect effects (spillovers).
Escudero, Leonardo, and Larreta Matías Marianetti. "Mejora en el desempeño del proceso de soldadura en industria autopartista." Bachelor's thesis, Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales Escuela de Ingeniería Industrial, 2016. http://hdl.handle.net/11086/4687.
Evalúa la situación actual para identificar el orígen de los problemas como son, falta de calidad y un incremento en los costos de producción, con el fin de encontrar una solución que satisfaga, por un lado los requisitos de calidad del cliente, a la vez que mejorar el desempeño del principal proceso que tiene la empresa que es la soldadura
Jáuregui, Teniente Luciola Manuela. "Efecto neuroprotector del extracto del zea mays l. sobre la bradicinesia y rigidez inducidas por haloperidol en ratas." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2016. https://hdl.handle.net/20.500.12672/4687.
--- Parkinson’s disease is a neurodegenerative disorder for which no therapy has been prove to be neuroprotective. Oxidative stress and neuroinflamation play an important role in the pathophysiology of Parkinson’s disease. Zea mays L., commonly called as “maíz morado” is a graminacea that contains a high amount of phenolic compounds such as flavonoids and anthocyanins. The antioxidant activity of Zea mays L. was demonstrated by its ability to reduce the oxidative stress marquers, nitric oxid and malondialdehyde. These results suggest that Zea mays L., it’s much related to a neuroprotective activity due to its anti-inflammatory and antioxidant activities. Key words: Parkinson’s disease, neuroprotection, oxidative stress, neuroinflamation, anti-inflammatory activity, antioxidant activity, Zea mays L.
Tesis
Salomão, Sandra Cristina. "Medida da resistência das vias aéreas pela técnica do interruptor em crianças nascidas prematuramente." Pontifícia Universidade Católica do Rio Grande do Sul, 2011. http://hdl.handle.net/10923/4687.
OBJECTIVE : To evaluate the airway resistance by interrupter technique (Rint) in preschool children born prematurely. STUDY DESIGN : Cross-sectional study of cohort premature infants born between (2004-2005). Data collection was conducted from November 2008 and May 2010. Anthropometric measurements were performed on the test day. The Rint was measured with the device Microrint® using filter. Calibration was performed every 50 trials. Were carried out 10 interruptions to the flow air in the peak expiratory flow sequentially. At the end of the test were stored ten consecutive respiratory cycles and to check the acceptability of the examination format of the curves and the VC for reproducibility £ 20%. We used the median value of Rint. RESULTS : The Rint was measured in 33 (89%) preterm infants and compared with a control group of 32 children. The premature group had higher Rint (0. 91 kPa/L/s) versus the control group (0. 80 kPa/L/s) but not statistically significant (p= 0,832).CONCLUSION : The Rint is easily reproducible in preschool children, but a tool is not sensitive enough to identify obstruction in patients with a history of prematurity in relation to the group of healthy children.
OBJETIVO : Avaliar a resistência das vias aéreas pela técnica do interruptor (Rint) em crianças pré-escolares nascidas prematuramente. METODOLOGIA : Estudo transversal de uma coorte de prematuros nascidos entre 2004-2005 no Hospital São Lucas da PUCRS. A coleta foi realizada entre novembro de 2008 até maio de 2010. Foram realizadas medidas antropométricas no dia do teste. A Rint foi mensurada com o aparelho MicroRint®, com uso do filtro. A calibração foi executada a cada 50 medidas. Foram realizadas dez interrupções ao fluxo de ar no pico de fluxo da expiração de forma seqüencial. No final do teste eram armazenados dez ciclos respiratórios consecutivos. Para a aceitabilidade do exame verificamos o formato das curvas e para a reprodutibilidade o CV £ 20%. Foi utilizado o valor da mediana da Rint. RESULTADOS : A Rint foi mensurada em 33 (89%) crianças prematuras e comparada com um grupo controle de 32 crianças. O grupo de prematuros apresentou Rint elevada (0,91 kPa/L/s) contra o grupo controle (0,80 kPa/L/s), porém sem diferença estatisticamente significativa (p= 0,832).CONCLUSÃO : A Rint é facilmente reprodutível em crianças com idade préescolar, porém não é uma ferramenta sensível o suficiente para identificar obstrução em pacientes com história de prematuridade em relação ao grupo de crianças saudáveis.
Silveira, Patrícia Pelufo. "Efeitos do estresse neonatal sobre o comportamento alimentar na vida adulta em ratos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/4687.
Collier, Debbie. "Agriculture, modern biotechnology and the law: An examination of the property paradigm in the context of plant genetic resources." Doctoral thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/4687.
Gomes, Sílvia Margarida Neves Carvalho. "Diversidade linguística no 1º ciclo do ensino básico: concepções dos professores." Master's thesis, Universidade de Aveiro, 2006. http://hdl.handle.net/10773/4687.
O presente estudo resulta de um projecto em Gestão Curricular cuja finalidade foi compreender as concepções dos professores acerca da integração curricular da diversidade linguística no 1º Ciclo do Ensino Básico. Tendo em conta a actual política educativa europeia para o ensino/aprendizagem das línguas, partimos do pressuposto de que o currículo do Ensino Básico deve privilegiar os valores democráticos, a educação para a cidadania, o respeito pelo Outro e a preservação da diversidade. Deste modo, com o propósito de identificar as concepções dos professores sobre a integração curricular da diversidade linguística e na sequência da realização de duas sessões de mestrado sobre esta temática, realizámos e analisámos duas entrevistas (em dois momentos diferentes do percurso de formação) a três professoras generalistas do 1º CEB. De um modo geral, este estudo de natureza exploratória permitiu-nos compreender que as professoras são capazes, não só de defender, mas também de implementar uma educação mais plural. Constatámos igualmente que estão conscientes da urgência em criar e mobilizar programas de formação mais ambiciosos que possam levar à motivação e à preparação dos professores para educar para a valorização da diversidade linguística.
This study is the result of a project on Curricular Management. It is our intention to become aware of teachers’ representations about curricular integration of linguistic diversity in primary schools. Considering today’s European educative policy for language teaching and learning, we assume that the curriculum in Basic Schools should privilege democratic values, education for citizenship, respect for the Other as well as preserve diversity. Thus, aiming to identify the teachers’ representations about curricular integration within the linguistic diversity concerning the same topic area, three primary teachers were inquired in two different moments. On the whole, this study allowed us to understand that teachers are capable not only of defending, but also of implementing a more plural education. We also verified that they are aware of the emergency in creating and mobilizing more ambitious training programmes which may lead to motivation and training teachers in order to value the linguistic diversity.
Cette étude est le résultat d'un projet en Gestion Curriculaire/du curriculum, dont le but est la compréhension des images/conceptions des institutrices à propos l’introduction de l’éveil aux langes dans le curriculum de l’enseignement primaire. En prenant compte l’actuelle politique éducative européenne pour l’enseignement/apprentissage des langues, nous croyons que le curriculum du premier cycle de l’enseignement doit privilégier les valeurs de la démocratie, l’éducation à la citoyenneté, le respect envers l’autre et la préservation de la diversité. Ainsi, dans le but d’identifier les images/conceptions des institutrices sur l’éveil aux langues et, après la dynamisation de deux sessions au niveau de maîtrise sur cette thématique, nous avons réalisé et analysé deux entrevues correspondantes à deux moments différents du parcours de formation de trois institutrices. Cette étude exploratoire nous a permit de comprendre que les institutrices sont capables, non seulement de défendre, mais encore de mettre en pratique une éducation plurielle. Les résultats de l’analyse des données recueillies nous montrent aussi que ces institutrices sont conscientes qu’il faut créer et mobiliser des programmes de formation plus ambitieux dans le sens de motiver et préparer les professeurs à une éducation pour la valorisation de la diversité linguistique.
El presente estudio de investigación es el resultado de un proyecto de investigación en Gestión Curricular y su finalidad fue entender las concepciones de los profesores sobre la integración curricular de la diversidad lingüística en la Educación Primaria. Según la actual política educativa europea para el enseño y aprendizaje de las lenguas presuponemos que el currículo de Educación Primaria debe privilegiar los valores democráticos, la educación para la ciudadanía, el respecto por los Otros e la preservación de la diversidad. Así, con la intención de identificar las concepciones de los profesores sobre la integración curricular de la diversidad lingüística y en la secuencia de la realización de dos secciones de maestría sobre este tema, realizamos y analizamos dos entrevistas (en dos momentos diferentes del camino de formación) a tres profesoras de Educación Primaria. De una manera en general, este estudio de origen exploratorio nos permitió comprender que las profesoras son capaces, no sólo de defender, pero también de implementar una educación más plural. Constatamos igualmente que están concientes de la urgencia en crear y movilizar programas de formación más ambiciosos que puedan llevar a la motivación y a la preparación de los profesores para educar para la valorización de la diversidad lingüística.
Questo studio è il risultato di un progetto denominato Gestione Curriculare (o di Curricula), il cui obiettivo era comprendere l'impostazione da parte dei professori sull'introduzione delle differenze linguistiche nei curricula nel primo livello della scuola dell'obbligo (scuole elementari). Tenendo conto delle politiche educative europee nell'ambito dell'apprendimento delle lingue, crediamo che il curriculum nell'insegnamento della scuola dell'obbligo debba privilegiare i valori della democrazia, dell'educazione civica, il rispetto verso l'altro e la conservazione delle diversità. In questo modo, con il proposito di identificare i pareri dei professori sull'argomento dell'integrazione curriculare della diversità linguistica e attraverso la sensibilizzazione, di due sessioni di esami di maturità, su questa tematica, abbiamo analizzato e realizzato due interviste (in due momenti diversi del percorso formativo) a tre insegnanti del primo livello della scuola dell'obbligo. In termini generali questo studio esplorativo ha permesso di comprendere come gli insegnanti siano capaci, non solo di difendere, ma anche di implementare una educazione plurima. I risultati dell'analisi dei dati raccolti ci mostrano anche che il corpo docente è cosciente della necessità di creare e lavorare su programmi di formazione più ambiziosi, che motivino e preparino i professori per educare alla valorizzazione delle diversità linguistiche.
Die vorlegende Studie ist das Ergebnis eines Forschungsprojekts im Rahmen des Curriculum Management dessen Ziel es war, die Konzeptionen der Grundschullehrer in Bezug auf die Sprachenvielfalt zu analysieren. Basierend auf der momentanen Europäischen Erziehungs- und speziell Sprachenpolitik, gehen wir davon aus, dass die Grundschule demokratische Werte, den Respekt zum Fremden und die Bewahrung der Vielfalt privilegiert. Auf diese Weise, und mit dem Ziel, die Einstellungen der Lehrer im Hinblick auf die curriculare Integration der Sprachenvielfalt festzustellen, haben wir, in zwei verschiedenen Zeitpunkten, Interviews mit drei Grundschullehrerinnen durchgeführt und anschließend analysiert. Zusammenfassend, ermöglichte uns dieses Forschungsprojekt festzustellen, dass diese Lehrerinnen fähig sind, eine sprachenvielfältige Erziehung nicht nur zu verteidigen, sondern auch zu implementieren. Außerdem konnnte konstatiert werden, dass die befragten Lehrerinnen ein Bewusstsein widerspiegeln - ein Bewusstsein über die Notwendigkeit von Fortbildungsprogrammen, die Grundschullehrer zu einer sprachvielfältigen Erziehung motivieren und vorbereiten.
يدخل هذا البحث في إطار تسيير البرنامج التربوي الذي يهدف إلى فهم نظريات المعلمين عندما يتعلق الأمر بالإدماج التعدد اللغوي في التعليم الابتدائي اعتمدنا على الرأي الذي ينص بأن على البرامج التربوية تفضيل القيم الديمقراطية و التربية الوطنية و احترام الآخر و تأييد التعددية. و في هذا الصدد، و بهدف تعريف بالنظريات و بعد دراسة هذه المادة في دروس الماجستير، أجرينا مقابلتين لثلاث معلمات في التعليم الابتدائي (خلال مرحلتين مختلفين من التكوين) و قمنا بتحليلها تحليلا دقيقا. و بصفة عامة، يعتبر هذا البحث من النوع التطبيقي حيث مكننا من فهم بأن المعلمات بإمكانهن ليس فقط الدفاع عن التعددية اللغات بل إدماجها في البرامج التربوية. ولاحظنا أيضا بأنهن واعيات بأهمية تنشيط البرامج التي تجلب أنظار التلاميذ و أيضا التي من شأنها تكوين المدرسين بصفة عامة لإعطاء أهمية آبرى للتعدد اللغوي.