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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.
271

Análise da evolução da ocupação urbana na faixa oceânica do município de Santa Vitória do Palmar/RS: balneários do Hermenegildo e da Barra do Chuí

Silva, Cristiano da January 2017 (has links)
As zonas costeiras estão em constante processo de pressão, tanto pela ação humana, que acaba rompendo o equilíbrio dominante, como pela ação da natureza, que está ligada principalmente a fatores geológicos, fatores climáticos e à dinâmica costeira. Neste trabalho buscou-se analisar a evolução do processo de ocupação urbana na faixa oceânica no município de Santa Vitória do Palmar, nos balneários do Hermenegildo e da Barra do Chuí, devido ao fato de esse local apresentar problemas em seu processo de urbanização, que se configuram pela falta de planejamento e de ordenamento territorial. Para essa análise, utilizou-se produtos de sensoriamento remoto em escala multitemporal, com perspectivas temporais em que se pode trabalhar e entender as rupturas de paradigmas em diferentes momentos históricos. Para isso, foram feitas análises em um levantamento aerofotogramétrico, adquirido pelo Exército Brasileiro, na Escala 1:75.000 do ano de 1964, análises em Imagens de Satélite Landsat TM7, do ano de 1996 e Imagens de Satélite QuickBird do ano de 2010. Portanto, esse trabalho propôs uma análise em escala multitemporal no processo de urbanização dos balneários do Hermenegildo e da Barra do Chuí, para um melhor entendimento do porquê dos problemas com as construções residenciais na faixa frontal ao Oceano Atlântico, que tem levando muitos moradores a perda total de suas residências. Verificou-se que a evolução dos percentuais de ocupação urbana nos balneários do Hermenegildo e da Barra do Chuí foi bastante significativa, sendo o que os dois balneários apresentaram crescimento mais elevado nas três primeiras décadas analisadas e ainda concluiu-se que no último intervalo da análise os índices de crescimento urbano foram menores para os dois balneários, recomendando-se maiores estudos e monitoramento dos vetores de crescimento urbano para ambos os balneários, com maior atenção para o balneário do Hermenegildo, devido ao grave problema de erosão costeira. / Coastal zones are constantly affected by the pressure process, caused by the human action, which ends up breaking the dominant balance, as well as by the action of the nature, which is mainly related to geologic and climatic factors and to the coastal dynamic. This study aims to analyze the urban occupation evolution process along Santa Vitória do Palmar coastline, especially Balneário do Hermenegildo and Balneário da Barra do Chuí, considering the fact that this specific territory presents lots of problems concerning its urbanization process. For this analysis, images captured by remote sensing were used in a multitemporal scale, trough time perspectives that enable this study to develop and understand the paradigmatic ruptures in different historical periods. In order to do so, different types of images were analyzed, such as the aerial photogrammetric survey, taken by the Brazilian Army, in the 1:75.000 scale of 1964, TM7 Landsat Satellite Images, taken in 1996, and QuickBird Satellite Images, taken in 2010. Therefore, this study promoted an analysis in a multitemporal scale of the urbanization process regarding the territory already mentioned, in order to discover the causes of the problems involving residential constructions located on the frontal area of the Atlantic Ocean, which might be the reason why the residents are totally losing their residences. It was found that the development of the urban occupation percentage in Balneário do Hermenegildo and Balneário da Barra do Chuí was very significant, based upon the fact that both beaches present a notorious increase on the first three analyzed decades and, beyond that, it was concluded that during the last interval of the analysis, the urban growth indices were lower for both, suggesting that this field demands more studies and monitoring of the urban growth vectors for both beaches, attaching particular attention to Balneário do Hermenegildo because of its severe coastal erosion problem.
272

Fotografia, narrativa e grupo : lugares onde pôr o que vivemos / Photograph, narrative and group : places where we put what we lived

Volpe, Altivir João 30 November 2007 (has links)
Este trabalho teve como objetivo a criação de um dispositivo grupal diferenciado e arealização de entrevistas nos quais foram utilizadas fotos e construções narrativas suscitadas por elas, como formações intermediárias que ocorrem em um espaço/tempo entre-dois. As conclusões sugerem a coexistência nos sujeitos de uma relação ambígua entre um ideal imaginário de relações estáveis e reasseguradoras, como em sua infância, e o que é vivido hoje por eles, sob o impacto das fortes mudanças ocorridas nas últimas décadas: insegurança e fragmentação dos laços sociais e incerteza com relação ao futuro. Algumas intuições de Walter Benjamin são confirmadas e acentuadas as contribuições de René Kaës no estudo dos processos grupais. Com a contribuição desses autores, enfatiza-se aqui a necessidade de reinventar metodologias articuladas a dispositivos diferenciados ao tratar das questões intersubjetivas, para responder às demandas sociais diante do sofrimento e das situações disruptivas. É sempre entre o risco contínuo da perda de referências e a possibilidade da constituição de novos espaços reasseguradores, que se vai processando a intensa construção da narrativa humana, particularmente na contemporaneidade. / The main objective of this work was the creation of a different group device and the conduction of interviews in which were used photographs and narratives aroused by them as intermediary formations that occur in a time/space between two. The conclusions suggest the coexistence in the subjects of a ambiguous relation between an ideal imaginary of stable and reassured relations, as in their childhood, and what is lived today by them, under the impact of the brutal changes that occurred in the last decades: insecurity and fragmentation in the social bonds and uncertainty in relation to the future. Some Walter Benjamin\'s intuitions are confirmed and René Kaës\' contributions are stressed in the group process studies. With the contribution from these authors, it is emphasized here the necessity of reinvent methodologies and different devices when dealing with intersubjective questions, in order to answer the social demands towards the suffering and the disruptive situations. It is always between the continuous risk of the references loss and the possibility of new reassured spaces constitution, that gets processed the human narrative intense construction, particularly in the contemporaneity.
273

LARÓYÈ: EXU NA OBRA DE MARIO CRAVO NETO / LARÓYÈ: EXU IN THE WORK OF MARIO CRAVO NETO

MENDONÇA, Adriana Aparecida 12 December 2008 (has links)
Made available in DSpace on 2014-07-29T16:27:59Z (GMT). No. of bitstreams: 1 dissertacao adriana cultura visual.pdf: 8383035 bytes, checksum: 4b9b9841f5978386597591236a035c7e (MD5) Previous issue date: 2008-12-12 / The present work has themselves in the study of (re) significance of the heritage of religious and mythological deities in the african-Brazilian artistic production, with emphasis on the symbolic presence of the messenger Exu in the work of Mario Cravo Neto. In this research we seek to understand the artistic context African American and the various forms of Exu representation of the messenger, especially in contemporary photograph of the artist Mario Cravo Neto. We promote a dialogue between the mythology of the deities mainly the myths that narrates the stories of Exu, with the production of photographic series called Laróyè. This production about the African philosophy, where religion and art are not separate. The study focuses mainly on the connections that Mario Cravo Neto establish with the worship of deities, specifically the relationship between religiosity and imagery generated in the cosmology of gods Africans in Brazil and its constant changes in the face of artistic and religious diversity / O presente trabalho detém-se no estudo da (re)significação da herança religiosa e mitológica dos orixás na produção artística afro-brasileira, com ênfase na presença simbólica do mensageiro Exu na obra de Mario Cravo Neto. Nesta pesquisa buscamos a compreensão do contexto artístico afro-brasileiro e as diferentes formas de representação do mensageiro Exu, especificamente na fotografia do artista contemporâneo Mario Cravo Neto. Promovemos um diálogo entre a mitologia dos orixás, principalmente os mitos que narram as histórias de Exu, com a produção da série fotográfica denominada Laróyè. Esta produção elucida a filosofia africana, onde religião e arte não se separam. O estudo foca, sobretudo as conexões que Mario Cravo Neto estabelece com o culto dos orixás, especificamente as relações entre a religiosidade e a imagética gerada na cosmologia dos deuses africanos no Brasil e suas constantes transformações diante da diversidade artística e religiosa
274

Fotografia, narrativa e grupo : lugares onde pôr o que vivemos / Photograph, narrative and group : places where we put what we lived

Altivir João Volpe 30 November 2007 (has links)
Este trabalho teve como objetivo a criação de um dispositivo grupal diferenciado e arealização de entrevistas nos quais foram utilizadas fotos e construções narrativas suscitadas por elas, como formações intermediárias que ocorrem em um espaço/tempo entre-dois. As conclusões sugerem a coexistência nos sujeitos de uma relação ambígua entre um ideal imaginário de relações estáveis e reasseguradoras, como em sua infância, e o que é vivido hoje por eles, sob o impacto das fortes mudanças ocorridas nas últimas décadas: insegurança e fragmentação dos laços sociais e incerteza com relação ao futuro. Algumas intuições de Walter Benjamin são confirmadas e acentuadas as contribuições de René Kaës no estudo dos processos grupais. Com a contribuição desses autores, enfatiza-se aqui a necessidade de reinventar metodologias articuladas a dispositivos diferenciados ao tratar das questões intersubjetivas, para responder às demandas sociais diante do sofrimento e das situações disruptivas. É sempre entre o risco contínuo da perda de referências e a possibilidade da constituição de novos espaços reasseguradores, que se vai processando a intensa construção da narrativa humana, particularmente na contemporaneidade. / The main objective of this work was the creation of a different group device and the conduction of interviews in which were used photographs and narratives aroused by them as intermediary formations that occur in a time/space between two. The conclusions suggest the coexistence in the subjects of a ambiguous relation between an ideal imaginary of stable and reassured relations, as in their childhood, and what is lived today by them, under the impact of the brutal changes that occurred in the last decades: insecurity and fragmentation in the social bonds and uncertainty in relation to the future. Some Walter Benjamin\'s intuitions are confirmed and René Kaës\' contributions are stressed in the group process studies. With the contribution from these authors, it is emphasized here the necessity of reinvent methodologies and different devices when dealing with intersubjective questions, in order to answer the social demands towards the suffering and the disruptive situations. It is always between the continuous risk of the references loss and the possibility of new reassured spaces constitution, that gets processed the human narrative intense construction, particularly in the contemporaneity.
275

Desmontando o “formigueiro humano”: uma leitura barthesiana das fotografias de Serra Pelada por Sebastião Salgado

Lavarda, Marcus Túlio Borowiski 07 December 2017 (has links)
Submitted by Filipe dos Santos (fsantos@pucsp.br) on 2017-12-15T11:37:02Z No. of bitstreams: 1 Marcus Túlio Borowiski Lavarda.pdf: 9503363 bytes, checksum: 9376ea1d0dd7e15941a26a4aec0bc4b9 (MD5) / Made available in DSpace on 2017-12-15T11:37:02Z (GMT). No. of bitstreams: 1 Marcus Túlio Borowiski Lavarda.pdf: 9503363 bytes, checksum: 9376ea1d0dd7e15941a26a4aec0bc4b9 (MD5) Previous issue date: 2017-12-07 / This paper aims to analyze Sebastião Salgado’s photographs about the region of Serra Pelada and its gold-mining activities that took place mainly from 1980 to 1992. This study focuses mainly in a photo series called Ouro, Serra Pelada, Brasil (Gold, Serra Pelada, Brazil), which is part of Salgado’s masterpiece Workers (1996). This monumental body of photographic work depicts what was coined by the Brazilian media at that time “a human ant nest”. The methodology used in this study is an analysis of document-based bibliographical research on reference papers about Salgado’s work as well as other journalistic photos of the gold mine pits, such as the ones published in Brazilian journalist Ricardo Kotscho’s book Serra Pelada: uma ferida aberta na selva (1984). The main theoretical concept used was Roland Barthes’ semiology, particularly the Barthesian concept of myth – viewed as a system of signs that indefinitely expands the initial representations of the meaning. The theoretical framework of this paper also relies on reference studies on the Barthesian critique. The assumption of this study is that Salgado’s photographic work relies on the process of super construction of themes – as most photographers do – as described in Barthes’ Mythologies. This is thought to be a relevant theme for investigation because no scholars have scrutinized Salgado’s Serra Pelada yet – hence this attempt to analyze Salgado’s work from an academic perspective / Esta tese contempla as fotografias feitas em Serra Pelada, p garimpo ativo no Pará no período de 1980 a 1992, por Sebastião Salgado. Dentre os muitos registros realizados em meio ao “formigueiro humano” do garimpo, segundo metáfora que lhe foi atribuída pela imprensa da época, elege-se como corpus principal da pesquisa a série fotográfica “Ouro, Serra Pelada, Brasil”, que consta da obra monumental intitulada Trabalhadores (1996), do renomado fotógrafo brasileiro. Metodologicamente, a pesquisa é bibliográfica e documental, abarcando obras de referência sobre a fotografia e as imagens, assim como reportagens de impacto sobre o referido formigueiro, como aquelas do jornalista Ricardo Kotscho, publicadas no livro Serra Pelada: uma ferida aberta na selva (1984). O principal referencial da pesquisa é a semiologia de Roland Barthes e mais especificamente o conceito barthesiano de “mito”, entendido como sistema conotado que distende abusivamente o sentido das representações iniciais de que parte. Tal base teórica demanda ainda a consideração de estudos abalizados sobre a crítica barthesiana. Trabalhamos com a hipótese de que a cobertura fotográfica em questão incorre naquilo que, em Mitologias, Barthes chama a “sobreconstrução” do tema pelo fotógrafo. A relevância da pesquisa prende-se ao fato de não haver, por ora, recepção acadêmica dos testemunhos fotográficos de Serra Pelada e à tentativa que aqui se leva a cabo de pensar as imagens de Salgado
276

Multimodal 3-D segmentation of optic nerve head structures from spectral domain Oct volumes and color fundus photographs

Hu, Zhihong 01 December 2011 (has links)
Currently available methods for managing glaucoma, e.g. the planimetry on stereo disc photographs, involve a subjective component either by the patient or examiner. In addition, a few structures may overlap together on the essential 2-D images, which can decrease reproducibility. Spectral domain optical coherence tomography (SD-OCT) provides a 3-D, cross-sectional, microscale depiction of biological tissues. Given the wealth of volumetric information at microscale resolution available with SD-OCT, it is likely that better parameters can be obtained for measuring glaucoma changes that move beyond what is possible using fundus photography etc. The neural canal opening (NCO) is a 3-D single anatomic structure in SD-OCT volumes. It is proposed as a basis for a stable reference plane from which various optic nerve morphometric parameters can be derived. The overall aim of this Ph.D. project is to develop a framework to segment the 3-D NCO and its related structure retinal vessels using information from SD-OCT volumes and/or fundus photographs to aid the management of glaucoma changes. Based on the mutual positional relationship of the NCO and vessels, a multimodal 3-D scale-learning-based framework is developed to iteratively identify them in SD-OCT volumes by incorporating each other's pre-identified positional information. The algorithm first applies a 3-D wavelet-transform-learning-based layer segmentation and pre-segments the NCO using graph search. To aid a better NCO detection, the vessels are identified either using a SD-OCT segmentation approach incorporating the presegmented NCO positional information to the vessel classification or a multimodal approach combining the complementary features from SD-OCT volumes and fundus photographs (or a registered-fundus approach based on the original fundus vessel segmentation). The obtained vessel positional information is then used to help enhance the NCO segmentation by incorporating that to the cost function of graph search. Note that the 3-D wavelet transform via lifting scheme has been used to remove high frequency noises and extract texture properties in SD-OCT volumes etc. The graph search has been used for finding the optimal solution of 3-D multiple surfaces using edge and additionally regional information. In this work, the use of the 3-D wavelet-transform-learning-based cost function for the graph search is a further extension of the 3-D wavelet transform and graph search. The major contributions of this work include: 1) extending the 3-D graph theoretic segmentation to the use of 3-D scale-learning-based cost function, 2) developing a graph theoretic approach for segmenting the NCO in SD-OCT volumes, 3) developing a 3-D wavelet-transform-learning-based graph theoretic approach for segmenting the NCO in SD-OCT volumes by iteratively utilizing the pre-identified NCO and vessel positional information (from 4 or 5), 4) developing a vessel classification approach in SD-OCT volumes by incorporating the pre-segmented NCO positional information to the vessel classification to suppress the NCO false positives, and 5) developing a multimodal concurrent classification and a registered-fundus approach for better identifying vessels in SD-OCT volumes using additional fundus information.
277

Identifying Land Use Changes and It's Socio-Economic Impacts : A Case Study of Chacoria Sundarban in Bangladesh

Musa, Khalid Bin January 2008 (has links)
Human intervention and natural phenomenon cause change in land use day by day. Availability of accurate land use information is essential for many applications like natural resource management, planning and monitoring programs. Landuse Change has become a central component in current strategies for managing natural resources and monitoring environmental change. Because of the rapid development in the field of land use mapping, there is an increase in studies of land use change worldwide. Providing an accurate assessment of the extent and health of the world’s forest, grassland and agricultural resources has become an important priority. By printed maps without any statistics or only statistics without any map can not solve this visualization problem. Because printed maps have not attracted as much attention as statistics among the people because of it is limited applications (Himiyama, 2002). Remotely sensed data like aerial photographs and satellite imageries are undoubtedly the most ideal data for extracting land use change information. Satellite images are the most economical way of getting data for different times. The multitude of existing software helps getting information from satellite image also in manipulating the information. The approach used in this study to classify satellite images and change detection based on Satellite images Landsat MSS (1972), Landsat TM (1989) and Landsat ETM (1999) for using supervised classification methods like maximum likelihood (MAXLIKE), MAHALCLASS and time series analysis of CROSSTAB. After performed these hard and soft classifiers the research showed the significant Landuse change in the study area of Chakoria Sundarban mangrove forest. Remote sensing is the modern tools for detecting change pattern and behaviours of coastal environment (Saifuzzaman, 2000). So, those tools are used in the research work for better change analysis of the study area. For analyzing, evaluation and mapping environmental change detection of different years remotely sensed data have been undertaken. The present research provides some suggestions and recommendations as per research findings in order to optimize the utility of coastal resources and to maintain the sustainability of the resources, coastal land use control and there by stabilizing the coastal vulnerable area of chakoria Sundarban.
278

Identifying Land Use Changes and It's Socio-Economic Impacts : A Case Study of Chacoria Sundarban in Bangladesh

Musa, Khalid Bin January 2008 (has links)
<p>Human intervention and natural phenomenon cause change in land use day by day. Availability of accurate land use information is essential for many applications like natural resource management, planning and monitoring programs. Landuse Change has become a central component in current strategies for managing natural resources and monitoring environmental change. Because of the rapid development in the field of land use mapping, there is an increase in studies of land use change worldwide. Providing an accurate assessment of the extent and health of the world’s forest, grassland and agricultural resources has become an important priority. By printed maps without any statistics or only statistics without any map can not solve this visualization problem. Because printed maps have not attracted as much attention as statistics among the people because of it is limited applications (Himiyama, 2002). Remotely sensed data like aerial photographs and satellite imageries are undoubtedly the most ideal data for extracting land use change information. Satellite images are the most economical way of getting data for different times. The multitude of existing software helps getting information from satellite image also in manipulating the information. The approach used in this study to classify satellite images and change detection based on Satellite images Landsat MSS (1972), Landsat TM (1989) and Landsat ETM (1999) for using supervised classification methods like maximum likelihood (MAXLIKE), MAHALCLASS and time series analysis of CROSSTAB. After performed these hard and soft classifiers the research showed the significant Landuse change in the study area of Chakoria Sundarban mangrove forest. Remote sensing is the modern tools for detecting change pattern and behaviours of coastal environment (Saifuzzaman, 2000). So, those tools are used in the research work for better change analysis of the study area. For analyzing, evaluation and mapping environmental change detection of different years remotely sensed data have been undertaken. The present research provides some suggestions and recommendations as per research findings in order to optimize the utility of coastal resources and to maintain the sustainability of the resources, coastal land use control and there by stabilizing the coastal vulnerable area of chakoria Sundarban.</p><p> </p>
279

An investigation into the digital scanning of photographs in archival collections

Somers, Nellayselviekumarie Subramany January 2006 (has links)
Thesis (M.Tech.: Library and Information Studies)-Durban University of Technology, 2006. xii, 210 leaves. / This study was aimed at investigating the digital scanning of photographs in archival collections with a view to highlighting some of the key issues in the provision of a digital imaging service.
280

Remote Sensing Study Of Surgu Fault Zone

Koc, Ayten 01 September 2005 (has links) (PDF)
The geometry, deformation mechanism and kinematics of the S&uuml / rg&uuml / Fault Zone is investigated by using remotely sensed data including Landsat TM and ASTER imagery combined with SRTM, and stereo-aerial photographs. They are used to extract information related to regional lineaments and tectono-morphological characteristics of the SFZ. Various image processing and enhancement techniques including contrast enhancement, PCA, DS and color composites are applied on the imagery and three different approaches including manual, semi automatic and automatic lineament extraction methods are followed. Then the lineaments obtained from ASTER and Landsat imagery using manual and automatic methods are overlaid to produce a final lineaments map. The results have indicated that, the total number and length of the lineaments obtained from automatic is more than other methods while the percentages of overlapping lineaments for the manual method is more than the automatic method which indicate that the lineaments from automatic method does not discriminate man made features which result more lineaments and less overlapping ratio with respect to final map. It is revealed from the detail analysis that, the SFZ displays characteristic deformation patterns of strike-slip faults, such as pressure ridges, linear fault controlled valleys, deflected stream courses, rotated blocks and juxtaposition of stratigraphical horizons in macroscopic scale. In addition to these, kinematic analyses carried out using fault slip data indicated that the S&uuml / rg&uuml / Fault Zone is dextral strike-slip fault zone with a reverse component of slip and cumulative displacement along the fault is more than 2 km.

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