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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Monocular compensation for colour deficient people.

January 2005 (has links)
Lau Tsz Yam. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references (leaves 91-94). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iii / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Characterization of Colour Deficiency --- p.7 / Chapter 2.1 --- Mechanism of colour vision --- p.7 / Chapter 2.2 --- Quantitative specification of colour --- p.10 / Chapter 2.3 --- Discrimination ellipses --- p.17 / Chapter 2.4 --- Colour perception of colour deficient people --- p.22 / Chapter 2.5 --- Luminance match of colour deficient people --- p.32 / Chapter 2.6 --- Diagnosis of colour deficiency --- p.32 / Chapter 2.7 --- Dichromat simulation algorithm --- p.35 / Chapter 3 --- Monocular Compensation --- p.37 / Chapter 3.1 --- Principle --- p.37 / Chapter 3.2 --- Potential problems without monocular compensation --- p.39 / Chapter 3.3 --- Existing monocular compensation implementations --- p.45 / Chapter 3.4 --- Compensation algorithm for monocular compensation --- p.47 / Chapter 4 --- Stereo Visual Display Unit - Monocular Compensation --- p.48 / Chapter 4.1 --- Gamut-based palette compression --- p.49 / Chapter 4.2 --- Compensation level --- p.56 / Chapter 4.3 --- Realizing transformed chromaticities --- p.59 / Chapter 5 --- Evaluation --- p.64 / Chapter 5.1 --- Extensiveness of compensation --- p.65 / Chapter 5.2 --- Combination of discriminations from the two eyes --- p.68 / Chapter 5.3 --- Discrimination improvement and visual comfort --- p.72 / Chapter 6 --- Conclusion and Future Works --- p.82 / Chapter A --- Raw Data of Experiment 53 --- p.85 / Bibliography --- p.91
12

Estudo sobre o conforto visual nas interfaces com ênfase no daltonismo

Souza, Andréa Silva 17 April 2013 (has links)
Made available in DSpace on 2016-04-29T14:23:17Z (GMT). No. of bitstreams: 1 Andrea Silva Souza.pdf: 3578491 bytes, checksum: 051cabe4e4a4d4b29651cda188b16c46 (MD5) Previous issue date: 2013-04-17 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This work studies the visual comfort in interfaces as a way to improve the accessibility and usability on the websites. Its main objective is to research the colors and their influence on access to web space turning it better, bringing the use of Internet for everyone without exception. Among the theoretical and methodological aspects chosen was approached the philosophy of semiotics, color theory, and especially the concepts of accessibility and usability / Este trabalho estuda o conforto visual nas interfaces, como forma de melhoria na acessibilidade e usabilidade nos sítios. Tem como principal objetivo a pesquisa das cores e sua influencia quanto ao acesso no espaço web melhorando e trazendo, ao mesmo tempo, uma Internet para todos sem exceção. Dentre os aspectos teórico-metodológicos escolhidos foi abordada a filosofia da semiótica, teoria das cores, e principalmente os conceitos de acessibilidade e usabilidade
13

Modern Conservative Judicial Activism in the Supreme Court and the Entrenchment of Privilege as a Rights Claim

Mooradian, Carmen Beatriz B. 01 April 2013 (has links)
In this work , I analyze the emergence of a series of Supreme Court cases in the Rehnquist and Roberts era which frame race-conscious legislation as discriminatory against whites; and which are responded to by the conservative justices as though anticlassification and reverse-discrimination are indeed rights claims. I analyze the response of the conservative justices to such claims, and posit that response of the conservative Justices to such cases constitutes activism. Further, the emergence of these cases can be attributed to the entrenchment of a colorblind narrative that is by its very nature not grounded in social reality, or historical context; and which aims to elevate the privileges of whiteness into rights. The implications of these narratives and conservative judicial activism will have monumental consequences for minority populations of color in the country.
14

Subcortical pathways for colour vision /

Szmajda, Brett A. January 2006 (has links)
Thesis (Ph.D.)--University of Melbourne, The National Vision Research Institute of Australia and Dept. of Optometry & Vision Sciences, 2007. / Typescript. Includes bibliographical references (leaves 95-111).
15

Considerations When Visualizing Information for a Non-interactive Dashboard : A study about what aspects to keep in mind when designing a non-interactive dashboard

Eriksson, Elina January 2023 (has links)
In this project a dashboard was created on behalf of the company Combitech who wanted to visualize a part of a workgroup’s information flow in hope of improving their communication. The only restriction was that it could not be interactive. The focus and goal with this study was to explore what factors one should keep in mind when designing a non-interactive dashboard. The two main theories used to guide this work were: information visualization and accessibility (focus on color vision deficiency). Designing digital products with accessibility needs in mind is not standard practice, but needs to be as society is becoming more filled with them. The process of creating the dashboard started with a literature review to read relevant works to gain insight. Interviews and user evaluations were conducted to gather insight from the users. An accessibility evaluation was performed to check for potential accessibility problems with the design. The result of the study suggests that information visualization and accessibility can be used together to produce a non-interactive dashboard that is viewed as both useful and appealing. The aspects used to achieve this were: understanding and involving the users to be able to prioritize information, being aware of how human perception works and how to apply color in an accessible way. / I detta projekt skapades en dashboard på uppdrag av företaget Combitech som ville visualisera en del av en av deras arbetsgruppers informationsflöde i hopp om att förbättra deras kommunikation. Den enda begränsningen var att den inte kunde vara interaktiv. Fokuset och målet med denna studie var att utforska vilka faktorer man bör tänka på när man designar en icke-interaktiv dashboard. De två huvudsakliga teorierna som användes för att styra detta arbete var: informationsvisualisering och tillgänglighet (fokus på defekt färgseende). Att designa digitala produkter med tillgänglighetsbehov i åtanke är inte standardpraxis, men behöver bli det då samhället blir mer fyllt av dem.  Processen att skapa dashboarden började med en litteraturgenomgång för att läsa relevanta verk för att få insikt. Intervjuer och användarutvärderingar genomfördes för att samla åsikter från användarna. En tillgänglighetsutvärdering gjordes för att kontrollera eventuella tillgänglighetsproblem med designen.   Resultatet av studien tyder på att informationsvisualisering och tillgänglighet kan användas tillsammans för att skapa en icke-interaktiv dashboard som ses som både användbar och tilltalande. Aspekterna som användes för att uppnå detta var: förstå och involvera användarna för att kunna prioritera information, vara medveten om hur mänsklig perception fungerar och hur man kan applicera färg på ett tillgängligt sätt.
16

Is Affirmative Action American? An Examination of Modern Racism, Color Blindness, and American Values

Hall, Ritchie V., II 02 June 2015 (has links)
No description available.
17

Daltonismo na educação infantil: sensibilizando profissionais da educação / Color-blindness in the early childhood education: sensitizing education professionals / Daltonismo en la educación infantil: sensibilizando a los profesionales de educación

Henriques, Katia Maria Thomazetti Csorgo 25 March 2019 (has links)
Submitted by Nadir Basilio (nadirsb@uninove.br) on 2019-03-27T15:10:46Z No. of bitstreams: 1 Katia Maria Thomazetti Csorgo Henriques.pdf: 5735651 bytes, checksum: 359625fa34ce976551c6945994d37777 (MD5) / Made available in DSpace on 2019-03-27T15:10:46Z (GMT). No. of bitstreams: 1 Katia Maria Thomazetti Csorgo Henriques.pdf: 5735651 bytes, checksum: 359625fa34ce976551c6945994d37777 (MD5) Previous issue date: 2019-03-25 / This intervention-research is based on the following questions: is it possible to sensitize educators in Early Childhood Education by understanding what is color-blindness? Do educators recognize the importance of using trackers as tools for the prospecting of color- blind children? The main goal is to make the professionals from Early Childhood Education aware of color-blindness. As specific objectives, we include the following: to understand if it is possible to sensitize educators from Early Childhood Education about the visual perception of the child who has color-blindness, through the understanding of what is color-blindness and to garantee whether educators recognize the importance of using screening instruments as polling color blind children. Our premise is that the initial training of educators in Pedagogy courses, despite offering subjects related to inclusion of people with disabilities, do not address issues of color-blindness. The universe of this research was the Centro de Educação Infantil (CEI) that attends children from zero to three years and 11 months and a Escola Municipal de Educação Infantil (EMEI) that attends four to five years and 11 months, both located in the city of São Paulo. The subjects were 22 teachers, 2 pedagogical coordinators, 2 directors, 2 support agents and 2 technical education assistants (TEA). We used a methodology of qualitative nature, of the intervention type based on action research, and the instruments were: observation of the experience during the use of toys, written testimony and interviews with teachers, TEAs, managers and agents, the analysis of official documents, such as: Federal Republic of Brazil, Law of Guidelines and Bases of National Education, Declaration of Salamanca, the Paulistana Policy of Special Education in the Perspective of Inclusive Education, the Integrative Curriculum of the Paulistana Childhood and the National Base Curricular Common. The research was based on the following authors: Mantoan; Farina, Perez and Bastos; Sacks; Formosinho and Pascal, Fochi, Altimir, who discuss, respectively, the inclusion, color, color- blindness and teacher training. The results of the survey reveal that educators recognize the importance of the usage of tools for colorblind children, as well as the need for the understanding of color-blindness. / Esta pesquisa-intervenção parte dos seguintes questionamentos: É possível sensibilizar educadores da Educação Infantil para a compreensão do que é daltonismo? Os educadores reconhecem a importância do uso de instrumentos rastreadores como ferramentas para a sondagem de crianças daltônicas? Tem por objetivo geral, sensibilizar os profissionais da Educação Infantil quanto ao daltonismo. Como objetivos específicos, elencamos os seguintes: compreender se é possível sensibilizar educadores da Educação Infantil a respeito da percepção visual da criança daltônica, através da compreensão do que é daltonismo e averiguar se os educadores reconhecem a importância do uso de instrumentos rastreadores como ferramentas para a sondagem de crianças daltônicas. Nossa premissa é a de que a formação inicial de professores nos cursos de Pedagogia, apesar de oferecer disciplinas voltadas à inclusão da pessoa com deficiência, não aborda questões relativas ao daltonismo. O universo da pesquisa foi um Centro de Educação Infantil (CEI) que atende crianças de zero a três anos e 11 meses e uma Escola Municipal de Educação Infantil (EMEI) que atende crianças de quatro a cinco anos e 11 meses, ambas localizadas no município de São Paulo. Os sujeitos foram 22 professoras, duas coordenadoras pedagógicas, duas diretoras, duas agentes de apoio e duas auxiliares técnicos de educação (ATE). A metodologia utilizada foi de cunho qualitativo, do tipo intervenção pautada na pesquisa-ação, e os instrumentos de coleta de dados foram: observação da vivência durante o uso dos brinquedos, depoimento escrito e entrevista com professores, ATEs, gestores e agentes escolares, além da análise dos documentos oficiais, tais como: Constituição da República Federativa do Brasil, Lei de Diretrizes e Bases da Educação Nacional, Declaração de Salamanca, a Política Paulistana de Educação Especial na Perspectiva da Educação Inclusiva, o Currículo Integrador da Infância Paulistana e a Base Nacional Comum Curricular. A pesquisa se fundamentou nos seguintes autores: Mantoan; Farina, Perez e Bastos; Sacks; Formosinho e Pascal, Fochi, Altimir, que discutem, respectivamente, a inclusão, a cor, o daltonismo e a formação de professores. Os resultados da pesquisa revelam que os educadores reconhecem a importância do uso de instrumentos rastreadores como ferramentas de sondagem de crianças daltônicas, bem como, a necessidade de formação para a compreensão do daltonismo. / Esta investigación-intervención parte de los siguientes cuestionamientos: ¿Es posible sensibilizar a los educadores de la Educación Infantil, para la comprensión de lo que es el daltonismo? ¿Los educadores reconocen la importancia del uso de instrumentos rastreadores como herramientas para el sondeo de niños daltónicos? Su objetivo general es sensibilizar a los profesionales de la Educación infantil acerca del daltonismo. Como objetivos específicos, tenemos los siguientes: comprender si es posible sensibilizar a los educadores de la Educación Infantil acerca de la percepción visual del niño daltónico, a través de la comprensión de lo que es el daltonismo y verificar si los educadores reconocen la importancia del uso de instrumentos rastreadores como herramientas para la el sondaje de los niños daltónicos. Nuestra premisa es que la formación inicial de profesores en los cursos de Pedagogía, a pesar de ofrecer disciplinas orientadas a la inclusión de la persona con discapacidad, no estudia cuestiones relativas al daltonismo. El universo de la investigación fue un Centro de Educación Infantil (CEI) que atiende niños desde cero hasta tres años y 11 meses de edad, y una Escuela Municipal de Educación Infantil (EMEI) que atiende a niños desde cuatro hasta cinco años y 11 meses de edad, las dos localizadas en el municipio de São Pablo. Los individuos fueron 22 (veintidós) profesoras, 2 (dos) coordinadoras pedagógicas, 2 (dos) directivas, 2 (dos) agentes de apoyo y 2 (dos) auxiliares técnicos de educación (ATE). La metodología utilizada fue de cuño cualitativo, del tipo intervención pautada en la investigación-acción, y los instrumentos de recolección de datos fueron: observación de la vivencia mientras el uso de los juguetes, testimonio escrito y entrevista con profesores, ATE, gestores y agentes escolares, además el análisis de los documentos oficiales, tales como: Constitución de la República Federativa de Brasil, Ley de Directrices y Bases de la Educación Nacional, Declaración de Salamanca, la Política Paulista de Educación Especial en la Perspectiva de la Educación Inclusiva, el Currículo Integrador de la Infancia Paulistana y la Base Nacional Común Curricular. La investigación se fundamentó en los siguientes autores: Mantoan; Farina, Perez y Bastos; Sacks; Formosinho y Pascal, Fochi, Altimir, que discuten, respectivamente, la inclusión, el color, el daltonismo y la formación de profesores. Los resultados de la investigación revelan que los educadores reconocen la importancia del uso de instrumentos rastreadores como herramientas de sondeo de niños daltónicos, así como la necesidad de formación para la comprensión del daltonismo.
18

Análise psicométrica de um questionário para avaliação do impacto da alteração de visão de cores / Reliability analysis of a questionnaire to access the impact of changing color vision among dichromatic people

Stoianov, Maristela 07 December 2018 (has links)
Muitas atividades da rotina humana são codificadas por cor. Disfunções na percepção das cores podem ocorrer por um grande número de causas, sejam elas congênitas ou adquiridas. A ênfase sobre o mais preciso levantamento de dados confirma que a prevalência de deficiência de indivíduos do sexo masculino caucasianos europeus é de cerca de 8% e que a prevalência em populações asiáticas é entre 4% e 5%. No ano de 2015, Bastos desenvolveu um questionário para avaliação do impacto da discromatopsia entre indivíduos adultos. Medir aspectos psicossociais, processos psíquicos e comportamentais envolve uma série de conteúdos matemáticos e caracterizações que podem ajudar a mostrar a validade e confiabilidade de perguntas e respostas por mais simples que pareça esse processo. O objetivo desse trabalho foi analisar a fidedignidade desse questionário e adequá-lo a uma futura análise fatorial. Pudemos observar que o constructo QUESTIONÁRIO PILOTO DE AVALIAÇÃO DO IMPACTO DA DISCROMATOPSIA CONGÊNITA é multidimensional. A ferramenta que foi escolhida para avalia-lo demonstra que seu item tem objetividade, simplicidade, clareza, relevância, precisão, variedade, modalidade, tipicidade e credibilidade. Esses critérios foram avaliados por juízes com desempenho habitual em interpretação de textos. O coeficiente Alfa de Cronbach demonstra uma congruência sólida entre os itens do questionário. Mesmo quando esse foi avaliado em suas dimensões, os coeficientes continuaram significantemente relacionados mostrando que essa é uma ferramenta de qualidade. Os resultados demonstram que o constructo apresenta boa fidedignidade e é de fundamental importância pois os métodos psicofísicos não correlacionam a suas análises ao real impacto que a alteração de visão de cores pode causar nesse grupo populacional / Many human routine activities are color-coded. Dysfunctions in the perception of colors can occur for a great number of causes, whether they are congenital or acquired. The emphasis on the most accurate data collection confirms that the prevalence of European Caucasian male deficiency is approximatedely 8% and that the prevalence in Asian populations is between 4% and 5%. In 2015, Bastos developed a questionnaire to assess the impact of dyschromatopsia among adult subjects. Measuring psychosocial aspects, psychic and behavioral processes involves a series of mathematical content and characterizations that can help show the validity and reliability of questions and answers as simple as this process may seem. The objective of this study was to analyze the reliability of this questionnaire and to adapt it for future factorial analyses. We could observe that the construct \"PILOT QUESTIONNAIRE FOR EVALUATING THE IMPACT OF CONGENITAL DISCROMATOPSY\" is multidimensional. The tool that has been chosen to evaluate it demonstrates that its items have objectivity, simplicity, clarity, relevance, precision, variety, modality, typicity and credibility. These criteria were evaluated by judges with a permissive performance in the interpretation of texts. Cronbach\'s Alfa coefficient demonstrates a solid congruence between the items in the questionnaire. Even when it was evaluated in its dimensions, the coefficients continued to be significantly related, showing that this is a quality tool. The results demonstrate that the construct presents good reliability and is of fundamental importance since the psychophysical methods do not correlate their analyses with the real impact that the alteration of color vision can cause in this population group
19

Afrofobi : En begreppsanalytisk studie / Afrophobia : a concept-analytical study

Ghebre, Alexander January 2018 (has links)
The purpose of this study is to create a broader understanding of the concept of afrophobia. The purpose of the study is also to investigate how the term ”afrophobia” is expressed in public documents. The research questions are: When did the concept of afrophobia begin to be used on an international level, but above all in Sweden? How is the term ”afrophobia” defined by different organizations and public bodies? What alternative terms are also used, and how does their meaning differ? What possible effects can different definitions contribute to? The method that will be applied by an idea analysis on my primary material. As an analysis tool, I will use five different dimensions that consist of the following: Historical perspective, Cultural identity, Intercultural perspective with a postcolonial point of departure, Strategic essentialism/cosmopolitism and critical whiteness perspective/color blindness. The result will show the different definitions of the primary material and is analyzed based on my chosen dimensions.
20

Detec??o de predadores por dicromatas e tricromatas humanos e a sua implica??o na evolu??o da vis?o de cores em primatas

Moraes, Pedro Zurvaino Palmeira Melo Rosa de 29 May 2012 (has links)
Made available in DSpace on 2014-12-17T15:37:13Z (GMT). No. of bitstreams: 1 PedroZPMRM_DISSERT.pdf: 485516 bytes, checksum: 5e7cc13b6cdb53047d1dea3153509081 (MD5) Previous issue date: 2012-05-29 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / Among placental mammals, primates are the only ones to present trichromatic color vision. However, the distribution of trichromacy among primates is not homogeneous: Old World primates shows an uniform trichromacy (with all individuals being trichromats) and New World primates exhibit a color vision polymorphism (with dichromatic males and dichromatic or trichromatic females). Visual ecology studies have investigated which selective pressures may have been responsible for the evolution of trichromacy in primates, diverging from the dichromat standard found in other mammals. Cues associated with foraging and the socio-reproductive status were analyzed, indicating a trichromatic advantage for the rapid detection of visually conspicuous objects against a green background. However, dichromats are characterized by an efficient capture of cryptic and camouflaged stimuli. These advantages regarding phenotype may be responsible for the maintenance of the visual polymorphism in New World primates and for the high incidence of color blindness in humans (standing around 8% in Caucasian men). An important factor that has not yet been experimentally taken into account is the predation risk and its effect on the evolution of trichromacy in primates. To answer this question, we prepared and edited pictures of animals with different coats: oncillas (Leopardus spp.), puma (Puma concolor) and ferret (Galictis cuja). The specimens were taxidermized and the photographs were taken in three different vegetation scenarios (dense forest, cerrado and grassland). The images of the predators were manipulated so that they fit into two categories of stimulus size (small or large). After color calibration and photo editing, these were presented to 40 humans (20 dichromats and 20 trichromats) by a computer program, which presented a set of four photos at a time (one picture containing the taxidermized animal amid the background vegetation and three depicting only the background vegetation) and recorded the response latency and success rate of the subjects. The results show a trichromatic advantage in detecting potential predators. The predator detection was influenced by the background, the predator species, the dimension of the stimulus and the observer s visual phenotype. As humans have a high rate of dyschromatopsias, when compared to wild Catarrhini or human tribal populations, it is possible that the increased rate of dichromats is a result of reduced pressure for rapid predator detection. Since our species came to live in more cohesive groups and resistant to attack by predators, with the advent of agriculture and the formation of villages, it is possible that the lower risk of predation has reduced the selection in favor of trichromats / Dentre os mam?feros placent?rios, os primatas s?o os ?nicos a apresentarem uma vis?o de cores tricromata. Contudo, a distribui??o da tricromacia dentre os primatas n?o ? homog?nea: primatas do Velho Mundo apresentam uma tricromacia uniforme (com todos os indiv?duos sendo tricromatas) e primatas do Novo Mundo apresentam um polimorfismo de vis?o de cores (com machos dicromatas e f?meas dicromatas ou tricromatas). Estudos em ecologia visual t?m investigado que press?es seletivas podem ter sido respons?veis pela evolu??o da tricromacia em primatas, divergindo do padr?o dicromata encontrado nos demais mam?feros. Pistas associadas ao forrageio e ao contexto s?cio-reprodutivo foram analisadas, indicando uma vantagem tricromata na detec??o r?pida de objetos visualmente consp?cuos no ambiente. Entretanto, dicromatas s?o caracterizados pela captura eficiente de est?mulos cr?pticos e camuflados. Estas vantagens relativas aos fen?tipos podem ser respons?veis pela manuten??o do polimorfismo visual em primatas do Novo Mundo e pelo alto ?ndice de daltonismo em humanos (situando-se em torno de 8% em homens caucasianos). Um importante fator que ainda n?o foi levado experimentalmente em conta ? o risco de preda??o e o seu efeito na evolu??o da tricromacia em primatas. Para responder esta pergunta, n?s preparamos e editamos fotografias de animais com pelagens distintas: gatos-do-mato (Leopardus spp.), puma (Puma concolor) e fur?o (Galictis cuja). Os exemplares estavam taxidermizados e as fotografias foram capturadas em tr?s diferentes cen?rios de vegeta??o (mata fechada, cerrado e campo aberto). As imagens dos predadores foram manipuladas para que eles se encaixassem em duas categorias de tamanho de est?mulo (pequenos ou grandes). Ap?s a calibra??o das cores e edi??o das fotos, estas foram apresentadas a 40 humanos (20 dicromatas e 20 tricromatas) por um programa de computador, o qual apresentava um conjunto de quatro fotos por vez (uma foto contendo o animal taxidermizado em meio ? vegeta??o de fundo e outras tr?s contendo apenas a vegeta??o de fundo) e registrava a lat?ncia de resposta e a taxa de acerto dos sujeitos. Os resultados apontam uma vantagem tricromata na detec??o de potenciais predadores. A detec??o dos predadores foi influenciada pelo cen?rio de fundo, pelo tipo de predador, pela sua dimens?o e pelo fen?tipo visual do observador. Como os humanos apresentam uma elevada taxa de discromatopsias, quando comparados com popula??es selvagens de outros Catarrhini ou mesmo popula??es humanas tribais, ? poss?vel que o aumento no ?ndice de dicromatas seja resultado de uma press?o reduzida de detec??o r?pida de predadores. Uma vez que nossa esp?cie passou a viver em grupos mais coesos e resistentes aos ataques de predadores, com o advento da agropecu?ria e a forma??o de vilas, ? poss?vel que o menor risco de preda??o tenha relaxado a sele??o a favor de tricromatas

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