999 resultados para Rubens, Peter Paul, 1577-1640.


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Parts I-III, IV-V paged separately.

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In outdoor environments shadows are common. These typically strong visual features cause considerable change in the appearance of a place, and therefore confound vision-based localisation approaches. In this paper we describe how to convert a colour image of the scene to a greyscale invariant image where pixel values are a function of underlying material property not lighting. We summarise the theory of shadow invariant images and discuss the modelling and calibration issues which are important for non-ideal off-the-shelf colour cameras. We evaluate the technique with a commonly used robotic camera and an autonomous car operating in an outdoor environment, and show that it can outperform the use of ordinary greyscale images for the task of visual localisation.

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Effective and targeted conservation action requires detailed information about species, their distribution, systematics and ecology as well as the distribution of threat processes which affect them. Knowledge of reptilian diversity remains surprisingly disparate, and innovative means of gaining rapid insight into the status of reptiles are needed in order to highlight urgent conservation cases and inform environmental policy with appropriate biodiversity information in a timely manner. We present the first ever global analysis of extinction risk in reptiles, based on a random representative sample of 1500 species (16% of all currently known species). To our knowledge, our results provide the first analysis of the global conservation status and distribution patterns of reptiles and the threats affecting them, highlighting conservation priorities and knowledge gaps which need to be addressed urgently to ensure the continued survival of the world’s reptiles. Nearly one in five reptilian species are threatened with extinction, with another one in five species classed as Data Deficient. The proportion of threatened reptile species is highest in freshwater environments, tropical regions and on oceanic islands, while data deficiency was highest in tropical areas, such as Central Africa and Southeast Asia, and among fossorial reptiles. Our results emphasise the need for research attention to be focussed on tropical areas which are experiencing the most dramatic rates of habitat loss, on fossorial reptiles for which there is a chronic lack of data, and on certain taxa such as snakes for which extinction risk may currently be underestimated due to lack of population information. Conservation actions specifically need to mitigate the effects of human-induced habitat loss and harvesting, which are the predominant threats to reptiles.

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This is about politics and protest, or rather about a politics of protest, and of rebellion. But it is also about creativity and the way in which theory and practice combine within the context of the ‘productive/creative’ process. In this case the combination is explicit and can be traced along a clear trajectory. The following will set out the way in which the accompanying piece of music – a cover of the 1969 protest song Leaving on a Jet Plane by Peter, Paul & Mary - came into being. In doing so it will make reference to a number of theoretical ideas/concepts that fed into the productive process and/or appeared relevant postproduction. It will draw on various aspects of thought from Heidegger (Standing reserve, Enframing and Authenticity), Camus (The Rebel), Foucault (Luminosity), and Deleuze (Immanence, Difference and Repetition and The Fold). [From the Author].

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This research is set in the context of today’s societies, in which the corporate visual symbology of a business, corporation or institution constitutes an essential way to transmit its corporate image. Traditional discursive procedures can be discovered in the development of these signs. The rhetorical strategies developed by the great classical authors appear in the logo-symbols expressing the corporate values of today’s companies. Thus, rhetoric is emerging once again in the sense it had many centuries ago: A repertory of rules that, paradoxically, standardizes the deviations of language and whose control is synonymous with power. The main objective of this study is to substantiate the rhetorical construction of logos using as a model of analysis the classical process of creating discourse. This involves understanding logos as persuasive discourses addressed to a modern audience. Our findings show that the rhetorical paradigm can be considered as a creative model for the con­struction of an original logo consistent with a company’s image.

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Beginning with a comparison of process philosophy and Madhyamika Buddhism -focussing in particular on Charles Hartshorne and Nagarjuna - which seeks to find points of similarity and difference, this thesis goes on to ask whether the differences are disagreements or complementary insights that may be integrated by means of a hermeneutical framework which can facilitate the enrichment of both systems. It is argued that process philosophy's method of creative synthesis and Madhyamika's method of negative dialectics are complementary rather than rival methods, because: (1) the Madhyamika bi-negation of symmetrical internal and external relations is complemented by process philosophy's argument that asymmetrical relations have primacy, which can be integrated into a theory of 'asymmetrical interdependence'; (2) the Madhyamika bi-negation of being and non-being is complemented by process philosophy's argument that becoming has primacy; (3) Madhyamika's emptiness (or openness) and process philosophy's creativity are complementary ideas that can be integrated into a ‘creative emptiness’; (4) Madhyamika's deconstruction of theism and acceptance of a conventional (and thus empty) ‘Cosmic Buddha-Bodhisattva’ and process philosophy's panentheism are complementary and can be integrated in the idea of an ‘empty God’; (5) The creative emptiness and the empty God are two different but complementary ultimates - the ultimate activity and the ultimate actuality; (6) Madhyamika’s two truths -conventional (empty world) and ultimate (emptiness) - can be enriched by expanding the conventional to include ultimate actuality (empty God), and not subordinating the conventional to the ultimate; (7) process philosophy can be similarly enriched by meditating on creative emptiness, which reveals the empty God-world, which is not dominant vis-a-vis creative emptiness. An attempt is made to develop a hermeneutical framework for the comparison and integration of Madhyamika and process thought, which can also be used to construct a general theory of worldviews and a theory of interreligious dialogue. Finally, the practical applications of the integration of process thought and Madhyamika Buddhism are explored, focussing on ethical and socio-political issues and how the integration of the two systems can be used to advantage in these contexts.

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Esta dissertação objetiva pensar os desdobramentos que as traduções da poesia de Rainer Maria Rilke alcançaram no cenário do Suplemento Literário da Folha do Norte - SL/FN e em outros periódicos das décadas de 1940 e 1950, em que foram publicadas. Consideramos que estas traduções foram um indício de intensificação da abertura universalizante das letras paraenses às novidades modernistas iniciadas na Semana de Arte Moderna de 1922. Tais traduções foram cruciais para a formação do Grupo dos Novos, composto principalmente de nomes como Benedito Nunes, Mário Faustino e Paulo Plinio Abreu, além do antropólogo alemão Peter Paul Hilbert. O suporte teórico-metodológico será a utilização dos conceitos de Weltliteratur (Literatura universal) de Goethe e Reflexionsmedium (Médium-de-reflexão) de Benjamin. Estas matrizes interligarão os campos da história, da filosofia da linguagem e da tradução para refletirmos sobre o impacto dessas traduções na Amazônia brasileira da época. Outro conceito importante nesta dissertação é o de Bildung (formação), pensado a partir da leitura de Antoine Berman quando ele o relaciona à tradução, incluindo vários fenômenos que envolvem as relações tradutórias entre culturas e línguas. Ao final, por meio da reflexão tradutológica de Haroldo de Campos, visamos observar possíveis confluências nas produções poéticas e críticas de Mário Faustino, Manuel Bandeira e Paulo Plínio Abreu, como resultante do processo relacional promovido por estas traduções.

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Abstract In this study structural and finite strain data are used to explore the tectonic evolution and the exhumation history of the Chilean accretionary wedge. The Chilean accretionary wedge is part of a Late Paleozoic subduction complex that developed during subduction of the Pacific plate underneath South America. The wedge is commonly subdivided into a structurally lower Western Series and an upper Eastern Series. This study shows the progressive development of structures and finite strain from the least deformed rocks in the eastern part of the Eastern Series of the accretionary wedge to higher grade schist of the Western Series at the Pacific coast. Furthermore, this study reports finite-strain data to quantify the contribution of vertical ductile shortening to exhumation. Vertical ductile shortening is, together with erosion and normal faulting, a process that can aid the exhumation of high-pressure rocks. In the east, structures are characterized by upright chevron folds of sedimentary layering which are associated with a penetrative axial-plane foliation, S1. As the F1 folds became slightly overturned to the west, S1 was folded about recumbent open F2 folds and an S2 axial-plane foliation developed. Near the contact between the Western and Eastern Series S2 represents a prominent subhorizontal transposition foliation. Towards the structural deepest units in the west the transposition foliation became progressively flat lying. Finite-strain data as obtained by Rf/Phi and PDS analysis in metagreywacke and X-ray texture goniometry in phyllosilicate-rich rocks show a smooth and gradual increase in strain magnitude from east to west. There are no evidences for normal faulting or significant structural breaks across the contact of Eastern and Western Series. The progressive structural and strain evolution between both series can be interpreted to reflect a continuous change in the mode of accretion in the subduction wedge. Before ~320-290 Ma the rocks of the Eastern Series were frontally accreted to the Andean margin. Frontal accretion caused horizontal shortening and upright folds and axial-plane foliations developed. At ~320-290 Ma the mode of accretion changed and the rocks of the Western Series were underplated below the Andean margin. This basal accretion caused a major change in the flow field within the wedge and gave rise to vertical shortening and the development of the penetrative subhorizontal transposition foliation. To estimate the amount that vertical ductile shortening contributed to the exhumation of both units finite strain is measured. The tensor average of absolute finite strain yield Sx=1.24, Sy=0.82 and Sz=0.57 implying an average vertical shortening of ca. 43%, which was compensated by volume loss. The finite strain data of the PDS measurements allow to calculate an average volume loss of 41%. A mass balance approximates that most of the solved material stays in the wedge and is precipitated in quartz veins. The average of relative finite strain is Sx=1.65, Sy=0.89 and Sz=0.59 indicating greater vertical shortening in the structurally deeper units. A simple model which integrates velocity gradients along a vertical flow path with a steady-state wedge is used to estimate the contribution of deformation to ductile thinning of the overburden during exhumation. The results show that vertical ductile shortening contributed 15-20% to exhumation. As no large-scale normal faults have been mapped the remaining 80-85% of exhumation must be due to erosion.