972 resultados para Visual C .net
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O crescente reconhecimento das limitaes das crianas com multideficincia e deficincia visual, quer nas interaces com os parceiros quer de uma forma geral nos ambientes em que se inserem, motivou este estudo, que pretendeu analisar o nvel de participao destas crianas em actividades na escola. Considerando a importncia de contribuir com informao para orientaes na interveno educativa de crianas com MDVI, realizou-se um estudo que analisa o seu comportamento e envolvimento em actividades da escola. Para a realizao deste estudo, observaram-se os comportamentos de trs crianas com MDVI, com idades compreendidas entre os 9 e os 10 anos, em trs ambientes da escola, nomeadamente a sala de aula, o refeitrio e o recreio, e em trs actividades (pintura, jogos, almoo, saltar corda, andar de baloio e subir escadas) de forma a analisar o seu envolvimento e limitaes nas actividades. Na anlise dos dados das observaes foram identificadas quatro categorias de participao: Inicia, Perde Oportunidade, Inicia com Apoio e Comportamento Potencialmente Comunicativo, registando-se valores que permitiram encontrar caractersticas dos comportamentos das crianas observadas, assim como o seu nvel de participao em actividades na escola. Os resultados do estudo permitiram verificar que a participao das crianas em actividades est condicionada pelos ambientes em que esto envolvidas, e no pelas problemticas que cada criana apresenta.----------------------------------------ABSTRACT: The motivation of this study is the increasing knowledge and awareness of children who have multiple disabilities and a visual impairment (MDVI) and the limitation with their peer interactions and in general. The purpose of this study was to analyze the participation level of children with MDVI in school activities. Considering the importance of contributing with guidelines for educational intervention with children with MDVI, we did a study that analyzes the behavior and the level of participation of MDVI children in school activities. In this research study we observed the behavior of three children with MDVI, of 9/10 years old, in three different environments at school; the classroom, the canteen and the playground, and in different activities (painting, playing games, having lunch, skipping rope, etc), in order to analyze their participation and their activity limitations in the activities referred. Data analysis identified four categories of participation: Initiation; Missed Opportunities; Initiation with support and Potentially communicative behavior. Results of data analysis allowed us to find out characteristics of childrens behavior, as well as their level of participation in activities. The main findings of this research allowed us to verify that the childs engagement in activities depends on the environments where they are located and not on their disability.
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Tendo como ponto de partida os objectivos do Programa Nacional para a Sade da Viso 2004-2010 relativos preveno primria e deteco precoce das alteraes oftalmolgicas, a tese de mestrado do Ortoptista Jorge Lameirinha sob o tema Importncia do Rastreio Visual Precoce nas Crianas: Impactos nos Cuidados de Sade Secundrios procura abrir um campo de reflexo e validao de como feita a deteco precoce de alteraes oftalmolgicas e a respectiva referenciao dos cuidados de sade primrios para a consulta de especialidade hospitalar. De forma a enquadrar a sade visual infantil, identificar a importncia da sua vigilncia e dos critrios de referenciao de alteraes oftalmolgicas entre diferentes nveis de cuidados de sade em Portugal nvel primrio e secundrio -, considerou-se pertinente para efeitos de investigao proceder-se anlise de um universo circunscrito no tempo e no espao. Esta investigao parte da observao e anlise de (1) um universo de 845 crianas com idades compreendidas entre os 0 e os 14 anos que realizaram um rastreio visual na consulta de oftalmologia peditrica do Hospital de So Bernardo Centro Hospitalar de Setbal -, e (2) dos resultados de um inqurito por questionrio acerca de como desenvolvida a vigilncia visual infantil, aplicado aos Directores dos Centros de Sade do Concelho de Setbal. Da apresentao e discusso dos principais resultados, este estudo traz algumas recomendaes para a resoluo de determinados bloqueios, identificados na realizao do rastreio visual infantil, e propostas para reforar a implementao das directivas expostas no Programa Nacional para a Sade Visual.
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Resumo: Este estudo surge no mbito do Mestrado em Reabilitao na Especialidade de Deficincia Visual ministrado em conjunto pelas Faculdades de Cincias Mdicas e Motricidade Humana. Na dissertao intitulada Formao de Professores para o Ensino da Matemtica no Ensino Bsico a Alunos com DV foi desenvolvida uma investigao, incidindo sobre a temtica atrs referida. Na primeira parte apresenta-se uma reviso de literatura, onde se exploram vrios conceitos relevantes como a deficincia visual, o currculo de matemtica no Ensino Bsico, as adaptaes curriculares dos alunos com DV, as tecnologias de apoio e a Formao dos Professores, entre outros. Na segunda parte apresentam-se as fundamentaes tericas que subjazem escolha da metodologia de investigao e instrumentao bem como a descrio dos procedimentos de investigao. Participaram neste estudo 52 professores de Matemtica dos trs ciclos do ensino bsico, que tinham alunos cegos ou com baixa viso nas suas turmas. Os dados foram recolhidos atravs de um questionrio aplicados aos professores. Na terceira parte apresentam-se alguns resultados desta pesquisa. Relativamente Formao de Professores, sendo N= 52, no que diz respeito Deficincia Visual, a maioria dos professores (58%) diz no ter conhecimento da mesma e 40% dos professores diz ter algum conhecimento sobre a deficincia visual. Destes professores, grande parte referiu no considerar suficiente a informao recebida, pelo que conclumos ser pertinente a proposta de cursos versando a formao de professores em Deficincia Visual. Conclui-se tambm que os professores sentem dificuldades com os materiais e equipamentos disponveis embora refiram que tivessem tido alguma informao sobre os mesmos.----------------------------------------- ABSTRACT: This study is the subject of the Master Course on the Specialty of Visual impaired given by both the Faculties of Cincias Mdicas and Motricidade Humana. In the dissertation, the title of Which is Vocational Training of Teachers for the Mathematies teaching in the Basic Compulsory education to students with Visual impaired inside of the thematic behind referred. In the first part it is presented a literature revision, where some concepts are explored like the visual impaired, the curriculum of mathematics in the Basic Compulsory Education, the curriculum adaptations to the pupils with visual impaired, the technologies of support and the vocational training of the teachers, among others. In the second part we can recognize the theoretical recitals that support the choice of the research methodology and the whole instrumens meedes as well as the description of the research procedures. 52 professors of Mathematics from the three cycles of basic compulsory education participated in this study, they had blind pupils or with low vision in their classes. The data had been collected through a questionnaire applied to the teachers. In the third part, we come to some results of this research. In what concerns the vocational training of the teachers being N= 52, the majority of them (58%) says not to have knowledge of it and 40% of them says that they have some knowledge on the visual impaired. Among, a great part mentioned not having received sufficient information, as we conclude to be pertinent the proposal of courses makina the vocational training of teachers in visual impaired a reality. One also concludes that the teachers have difficulties with the materials and available equipment even though they mention to have had some information about them.
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Resumo: Este estudo tem como finalidade validar e adaptar o WES (Work Experience Survey), de forma a avaliar e caracterizar a percepo que as pessoas DV portuguesas possuem sobre as barreiras ao emprego e as suas formas de resoluo e/ou minimizao. Da reviso da literatura, constatou-se a inexistncia, a nvel nacional, de estudos que versassem sobre as barreiras no acesso e manuteno de emprego e estratgias de superao. Este motivo foi o ponto a partir do qual se elaborou a adaptao e validao do questionrio WES e a partir do qual alcanamos resultados e concluses que nos remetem para evidncias que a seguir se descrevem. Os dados recolhidos demonstram que esta faixa da populao: tem baixos nveis de escolaridade; necessita de aperfeioar as suas competncias para se tornar mais competitiva no mercado de trabalho; tem dificuldades na acessibilidade ao meio fsico, devido s condies de acessibilidade oferecidas; enfrenta problemas no desempenho laboral, devido falta de tecnologias de apoio e de meios de superao das barreiras no local de trabalho; e sente-se discriminada no acesso e manuteno do emprego, e progresso na carreira. A explorao das razes do insucesso escolar e do perfil de competncias adequado, exigveis para o emprego; o desenvolvimento de planos de promoo da carreira; a divulgao das competncias e capacidades dos trabalhadores DV e a averiguao na aplicao da legislao referente acessibilidade so algumas sugestes apresentadas.
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Dissertao apresentada na Faculdade de Cincias e Tecnologia da Universidade Nova de Lisboa para obteno do Grau de Mestre em Engenharia Electrotcnica e de Computadores
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RESUMO: Na parte inicial incluem-se algumas notas sucintas com base no panorama cientfico,histrico e cultural da viso considerada segundo trs abordagens - o olho (o olho humano na especificidade da sua posio filogentica, elemento antomo-funcional bsico do sistema visual ao qual o crebro pertence), os olhos (unidades gmeas essenciais do rosto na sua actividade consensual e conjugada da binocularidade), o olhar (carregado de expresso psicolgica e o seu efeito sobre o observador, sinal para o comportamento e criador de sentimentos, sedimentado em obras de arte e em formas de superstio dos povos). Segue-se a apresentao de um estudo descritivo transversal, como contribuio para o conhecimento do estado de sade visual da populao infantil da regio de Lisboa e determinar factores que o influenciam. Entre Outubro de 2005 e Agosto de 2006 examinaram-se 649 crianas com idade inferior a 10 anos da Consulta de Oftalmologia Peditrica dos Servios de Assistncia Mdico-Social do Sindicato dos Bancrios do Sul e Ilhas (SAMS). Colheram-se dados respeitantes a mais de 250 variveis primrias que cobriram a maior parte dos itens do exame oftalmolgico habitual. Na anlise dos dados teve-se especialmente em conta a idade, com um papel decisivo nas principais fases de desenvolvimento do sistema visual. No caso das crianas de 6 a 7 anos de idade pem-se lado a lado resultados dos SAMS e das Escolas. A profuso de dados numricos ditou a necessidade da determinao frequente da significncia estatstica dos resultados de subgrupos. Alguns resultados do estudo, na sua maioria do grupo SAMS: Crianas de 6-7 anos, 71,1% (SAMS) e 91,5% (Escolas) no tinham sido examinadas com menos de 4 anos. Frequncia global de alteraes mipicas 9,4%, de alteraes hipermetrpicas 25,3%, umas e outras com variaes acentuadas com a idade. Estrabismo convergente 3,9%. Ambliopia 2,6% (13/491 crianas >=4 anos de idade), mais frequente no sexo feminino, naquelas que tiveram a sua 1 observao depois dos 4 anos e em que os pais no aderiam teraputica prescrita. Objectivos especficos ocuparam-se da acuidade visual e da refraco ocular. O estudo comparativo da refractometria automtica sem e com cicloplegia permitiu evidenciar que o teste da acuidade visual insuficiente, por si s, para fazer o diagnstico correcto. A anlise dos antecedentes familiares oftalmolgicos demonstrou a importncia do seu conhecimento e ps em evidncia, entre outras, as seguintes relaes: 10 pag1.qxp 27-11-2001 18:28 Page 10 ndice Geral 11 Crianas com antecedentes de alteraes mipicas tm maior frequncia de diagnstico de alteraes mipicas e de refraco negativa, uma taxa mais elevada de correspondncia quantitativa diagnstico/refraco nas alteraes mipicas. Estas crianas tambm tm, em geral, caractersticas inversas no que diz respeito a alteraes hipermetrpicas. Crianas com antecedentes de alteraes hipermetrpicas tm maior frequncia de diagnstico de alteraes hipermetrpicas. Crianas com antecedentes de estrabismo tm maior frequncia de diagnstico de estrabismo convergente manifesto e de esodesvios no seu todo. Crianas com antecedentes familiares de astigmatismo tm maior frequncia de diagnstico de astigmatismo. Traam-se alguns perfis oftalmolgicos infantis que permitem apreciar de forma sinptica um conjunto de parmetros da sade da viso. Os dados colhidos sobre a aderncia dos pais teraputica prescrita e sobre a atitude em relao ao uso de culos assim como os dados sobre o comportamento da criana na sala de aula e dificuldades de aprendizagem foram em geral escassos para permitirem tirar concluses, embora mostrem indcios a investigar futuramente. Paralelamente ortoptistas e enfermeiras efectuaram um rastreio escolar da acuidade visual <0,8 e de alteraes da motilidade ocular extrnseca que abrangeu 520 alunos do 1 ano do 1 ciclo do ensino bsico (2005/2006) das escolas pblicas da cidade de Lisboa. 101 destas crianas foram observadas no consultrio da autora, umas referidas a partir do rastreio, outras como controlo deste. Quanto acuidade visual o valor preditivo do teste negativo foi de 91% mas o do teste positivo de apenas 67% (33% de falsos positivos, consequentemente uma alta taxa de sobrerreferenciao). A qualidade do rastreio efectuado por ortoptistas foi inferior do efectuado por enfermeiras. O rastreio no teve qualidade aceitvel. Foi feito um inqurito a mdicos e enfermeiros de centros de sade sobre conhecimentos, atitudes e prticas em relao com os cuidados de oftalmologia peditrica. Discutem-se os resultados, tiram-se concluses e fazem-se recomendaes susceptveis de contribuir para uma melhor sade visual das crianas. ABSTRACT: Firstly some brief remarks are made based on the scientific, historical and cultural panorama of the human vision with regard to three approaches: the eye (the human eye in its specific filogenetic place, fundamental anatomofunctional element of the visual system in interaction with the brain), the eyes (essential twin units of the face with their consensual and conjugated binocular activity), the gaze (psychologicaly overloaded, a means to express oneself and to influence the observer, a guide to other persons' behaviour, consolidated in works of art and in people's traditional superstitious believes and ways of thinking). A report is made on a cross-sectional descriptive study whose goal is to contribute to the knowledge of the level of visual health of children in the Lisbon Region and to identify factors which determine it. Between October 2005 and August 2006 649 children under 10 years were observed at the pediatric ophthalmologic consultation in the SAMS (Servios de Assistncia Mdico-Social do Sindicato dos Bancrios do Sul e Ilhas). Data were collected concerning more than 250 primary variables covering most itens of the usual ophthalmological examination. Special attention was paid to children's age since it plays a crucial role in main stages of visual system development. In the case of children age 6 to 7 SAMS and school results are often put side by side. On account of the great number of numerical data it was often necessary to look at the degree of statistical significancy of differencies between subgroups. Some of the study's results (mostly SAMS): Children age 6 to 7 - 71,1% (SAMS) and 91,5% (Schools) had not an ophthalmologic examination before 4 years old. Total frequency of myopic disorders 9,4%, of hypermetropic disorders 25,3%, both showing great differences between age groups; convergent strabismus 3,9%; amblyopia 2,6% (13/491 children over 3 years old), more frequent among little girls, in those with 1st examination after 4 years old and in those whose parents didnt complied to the therapy ordered for the child. Specific objectives dealt with visual acuity and ocular refraction. The comparison of automatic refractometry without and with cycloplegy showed that visual acuity testing is often not enough for a correct diagnosis. Eye disorders in the family history proved to be a very important information. Analysis of corresponding data disclosed a lot of relationships among others: 12 pag1.qxp 27-11-2001 18:28 Page 12 ndice Geral 13 Children with a family history of myopic disorders have more frequently a diagnosis of myopic disorders and a negative refraction, a higher rate of quantitative diagnosis/refraction matching concerning myopic disorders. Those children have in general inverse characteristics regarding hypermetropic disorders. Children with a family history of hypermetropic disorders have more frequently a diagnosis of hypermetropic disorders. Children with a family history of strabismus have more frequently a diagnosis of manifest convergent strabismus and all forms of esodeviations. Children with a family history of astigmatism have more frequently a diagnosis of astigmatism. Ophthalmologic profiles are drawn allowing to take into account in a synoptic way a set of visual health parameters. Data on parents' compliance with therapy ordered for the child, and attitudes regarding child's glass wearing, as well as data on child's behaviour in the classroom and learning difficulties were as a rule too few to allow conclusions but still need more studies in the future. Orthoptists and nurses performed in the same study period a screening of visual acuity <0,8 and of ocular motility disorders addressed to children of 1srt degree of public schools (term 2005/2006) in the town of Lisbon. 520 of such children were screened. 101 of them were examined by the author in her medical office; some were refered, the others taken as a control. Regarding visual acuity the predictive value of a negative test was 91% but the predictive value of a positive test was only 67% (33% of false positive results, consequently a too high rate of overreferal). Performed by orthoptists screening quality was inferior in comparison with screening done by nurses. On the whole this screening had not the required quality. A survey on physicians' and nurses' knowledge, attitudes and practices related to pediatric ophthalmologic care was carried out in health centers. Results are discussed, conclusions drawn. Some suggestions are made aiming at a better children's visual health.
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A new algorithm for the velocity vector estimation of moving ships using Single Look Complex (SLC) SAR data in strip map acquisition mode is proposed. The algorithm exploits both amplitude and phase information of the Doppler decompressed data spectrum, with the aim to estimate both the azimuth antenna pattern and the backscattering coefficient as function of the look angle. The antenna pattern estimation provides information about the target velocity; the backscattering coefficient can be used for vessel classification. The range velocity is retrieved in the slow time frequency domain by estimating the antenna pattern effects induced by the target motion, while the azimuth velocity is calculated by the estimated range velocity and the ship orientation. Finally, the algorithm is tested on simulated SAR SLC data.
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In the last decade, local image features have been widely used in robot visual localization. In order to assess image similarity, a strategy exploiting these features compares raw descriptors extracted from the current image with those in the models of places. This paper addresses the ensuing step in this process, where a combining function must be used to aggregate results and assign each place a score. Casting the problem in the multiple classifier systems framework, in this paper we compare several candidate combiners with respect to their performance in the visual localization task. For this evaluation, we selected the most popular methods in the class of non-trained combiners, namely the sum rule and product rule. A deeper insight into the potential of these combiners is provided through a discriminativity analysis involving the algebraic rules and two extensions of these methods: the threshold, as well as the weighted modifications. In addition, a voting method, previously used in robot visual localization, is assessed. Furthermore, we address the process of constructing a model of the environment by describing how the model granularity impacts upon performance. All combiners are tested on a visual localization task, carried out on a public dataset. It is experimentally demonstrated that the sum rule extensions globally achieve the best performance, confirming the general agreement on the robustness of this rule in other classification problems. The voting method, whilst competitive with the product rule in its standard form, is shown to be outperformed by its modified versions.
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The solubilities of two C-tetraalkylcalix[4]resorcinarenes, namely C-tetramethylcalix[4]resorcinarene and C-tetrapentylcalix[4]resorcinarene, in supercritical carbon dioxide (SCCO2) were measured in a flow-type apparatus at a temperature range from (313.2 to 333.2) K and at pressures from (12.0 to 35.0) MPa. The C-tetraalkylcalix[4]resorcinarenes were synthesized applying our optimized procedure and fully characterized by means of gel permeation chromatography, infrared and nuclear magnetic resonance spectroscopy. The solubilities of the C-tetraalkylcalix[4]resorcinarenes in SCCO2 were determined by analysis of the extracts obtained by HPLC with ultraviolet (UV) detection methodology adapted by our team. Four semiempirical density-based models, and the SoaveRedlichKwong cubic equation of state (SRK CEoS) with classical mixing rules, were applied to correlate the solubility of the calix[4]resorcinarenes in the SC CO2. The physical properties required for the modeling were estimated and reported.
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Isoniazid (INH) is still one of the two most effective antitubercular drugs and is included in all recommended multitherapeutic regimens. Because of the increasing resistance of Mycobacterium tuberculosis to INH, mainly associated with mutations in the katG gene, new INH-based compounds have been proposed to circumvent this problem. In this work, we present a detailed comparative study of the molecular determinants of the interactions between wt KatG or its S315T mutant form and either INH or INH-C10, a new acylated INH derivative. MD simulations were used to explore the conformational space of both proteins, and results indicate that the S315T mutation did not have a significant impact on the average size of the access tunnel in the vicinity of these residues. Our simulations also indicate that the steric hindrance role assigned to Asp137 is transient and that electrostatic changes can be important in understanding the enzyme activity data of mutations in KatG. Additionally, molecular docking studies were used to determine the preferred modes of binding of the two substrates. Upon mutation, the apparently less favored docking solution for reaction became the most abundant, suggesting that S315T mutation favors less optimal binding modes. Moreover, the aliphatic tail in INH-C10 seems to bring the hydrazine group closer to the heme, thus favoring the apparent most reactive binding mode, regardless of the enzyme form. The ITC data is in agreement with our interpretation of the C10 alkyl chain role and helped to rationalize the significantly lower experimental MIC value observed for INH-C10. This compound seems to be able to counterbalance most of the conformational restrictions introduced by the mutation, which are thought to be responsible for the decrease in INH activity in the mutated strain. Therefore, INH-C10 appears to be a very promising lead compound for drug development.
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La prsente thse doctorale propose ltude de lactivit thtrale dveloppe dans les thtres permanents construits en Amrique Portugaise au long du XVIIIe et dans la premire dcennie du XIXe sicle, en mettant laccent sur les idalisateurs des Casas da pera et les moyens de financement utiliss dans ldification et lentretien de celles-ci, le rpertoire mis en scne, les artistes composant les compagnies thtrales, les spectateurs et les possibilits de sociabilit tablies dans lespace thtrale et les modles architectoniques qui ont inspir la construction des btiments thtraux au cours de la priode mentionne. Ces cinq axes principaux soulignent lapproche interdisciplinaire qui a orient nos tudes, dans un souci de contribution une plus complte comprhension de notre sujet de recherche. Mots cls : Thtres, Amrique Portugaise, Comdiens Multres, Thtre phmre, Comdies Portugaises, Architecture thtrale luso-amricaine, Casa da pera de Vila Rica/Ouro Preto.
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Trabalho de projecto apresentada como requisito parcial para obteno do grau de Mestre em Cincia e Sistemas de Informao Geogrfica.
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Dissertao apresentada Escola Superior de Comunicao Social como parte dos requisitos para obteno de grau de mestre em Publicidade e Marketing.
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Dissertao apresentada na Faculdade de Cincias e Tecnologia da Universidade Nova de Lisboa para obteno do grau de Mestre em Cincias de Engenharia Biomdica
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Dissertao apresentada na Faculdade de Cincias e Tecnologia da Universidade Nova de Lisboa para obteno do grau de Mestre em BioOrgnica
