This thesis explores an alternative method of making Architecture based on ideas presented by Bruno Latour in “Give me a gun and I will make all buildings move” and concepts discussed by Peter Eisenman within “Diagram: An Original Scene of Writing.” The static nature of representation within Euclidian Space requires a re-evaluation of the generative qualities inherent within diagrams. Managed through an identified mechanism, the thesis investigates the excavation of potential within Pretoria Central’s lost spaces by generating programme, response and resolution from elements inherent in the diachronic context. / Dissertation MArch(Prof)--University of Pretoria, 2013. / Architecture / MArch(Prof) / Unrestricted

[pt] Esta pesquisa se propõe a investigar as possibilidades de renovação dos processos de significação e produção de sentido na arquitetura, no contexto da complexa condição contemporânea. Da dinâmica capitalista de consumo que rege a construção das cidades contemporâneas emerge uma produção arquitetônica espetacular, criada para simbolizar prosperidade políticoeconômica em que, com frequência, arte e arquitetura são associadas num processo de mercantilização da cultura. Esse processo, somado à crise do paradigma moderno, dificulta a compreensão do papel do arquiteto e das possibilidades para a arquitetura numa abordagem crítica e determina um empobrecimento da disciplina, ainda condicionada aos tradicionais códigos e regras formais do funcionalismo. Nesse contexto, é enfatizada a importância do deslocamento do objeto arquitetônico e seus aspectos estético-formais para os aspectos conceituais da arquitetura, abordados no âmbito do campo ampliado da cultura contemporânea. Desde a incorporação de paradigmas teóricos da linguística e da filosofia pelas práticas artística e arquitetônica, nos anos 60, tornou-se imprescindível a abordagem interdisciplinar no entendimento dos processos de produção de matéria e sentido que compõem o ambiente cultural construído. Ao longo do trabalho, essas questões foram problematizadas a partir da obra do arquiteto norte americano Peter Eisenman e seus interlocutores, através de um intenso diálogo entre arquitetura, arte e filosofia, que enfatiza a importância da resistência e da crítica aos padrões que limitam nossa presença, experiência e relação com espaço, matéria e tempo, através da arquitetura. / [en] This research aims to investigate the possibilities of the renewal of signification processes and sense production in architecture, in the context of the complex contemporary condition. From the capitalistic dynamics of consumerism that govern the construction of contemporary cities emerges a spectacular architectonic production created to symbolize political-economical prosperity in which, frequently, art and architecture are associated in a process of cultural commodification. This process added to the crises of the modern paradigm, complicates the comprehension of the architect’s role and the possibilities for architecture today through a critical approach determining an impoverishment of the theoretical and architectural design activity, still conditioned to the traditional codes and rules of functionalism. In this context, an emphasis is placed on the importance of the displacement from the architectonic object and it s aestheticalformal aspects to the conceptual aspects of architecture, to be approached in the scope of the contemporary expanded field of culture. Since the incorporation of theoretical paradigms from linguistics and philosophy by artistic and architectural practices, in the 60 s, to approach the processes of matter and sense production that composes the cultural built environment, interdisciplinarity has become indispensable. These issues were approached in this study by analyzing the work of the North American architect Peter Eisenman and his interlocutors, in an intense dialog involving architecture, art and philosophy, with emphasis on the importance of resistance and criticism of the standards that limit our presence, experience and relationship with space, matter and time, through architecture.

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A atualidade é marcada pela descoberta contínua dos interstícios disciplinares como catalisadores de toda sorte de práticas; expressões como \"Campo ampliado\" e \"Complexo artearquitetura\" são chamadas para refletir como tais arranjos acontecem especialmente na confluência entre a arquitetura e as artes. A pesquisa busca localizar, na passagem dos anos 1960 aos 1980, um debate que solicitou desses campos a reconfiguração de seus instrumentos de análise, de crítica, de abordagem à forma, e mesmo uma nova inscrição de seus significados e abrangências: o cruzamento das trajetórias intelectuais da teórica e crítica de arte Rosalind Krauss e do arquiteto e teórico Peter Eisenman no The Institute for Architecture and Urban Studies - IAUS, sediado em Nova York de 1967 a 1985. O instituto colocou-se como núcleo da pesquisa interdisciplinar de seu tempo ao promover cursos, conferências, mostras, publicações, e ao legar dois periódicos especializados que encaminhariam as agendas da arquitetura e das artes nas décadas seguintes, respectivamente, Oppositions: A Jornal for Ideas and Criticism in Architecture (1973-1984) e October (1976 até o presente). O estudo passa pelas proposições questionadoras da primazia do suporte artístico no minimalismo até a cristalização dessas dinâmicas no ensaio \"A escultura no campo ampliado\", de Krauss; e pela verificação, no início dos anos 1960, da necessidade pela reelaboração das questões de relevância para a arquitetura e para o urbanismo, que levariam ao sentido autocrítico investido na noção de autonomia disciplinar, e ao sentido autorreferencial da autonomia da forma arquitetônica, como engendrado por Eisenman. As experiências que assumiriam o espaço físico como constitutivo do trabalho artístico contrastam em diversos níveis com a modalidade conceitual perscrutada por essa arquitetura. Alguns dos pontos de apoio compartilhados pelos movimentos teóricos em questão são as noções de objeto, ambiente, formalismo, linguagem, modernismo e pós-modernismo. Mantendo entre si relações de complementaridade, de reciprocidade, de contradição, o empréstimo a tais categorias entre disciplinas é compreendido em vista de um segundo plano institucional. / The current situation is marked by the continuous discovery of the disciplinary interstices as Catalysts of all kinds of practices; Expressions such as \"Expanded Field\" and \"Complexo artearquitetura\" Are called to reflect how such arrangements Confluence between architecture and the arts. The research seeks to locate, over the years 1960 to the 1980s, a debate that called for these areas to reconfigure their Instruments of analysis, criticism, approach to form, and even a new inscription of Their meanings and scope: the crossing of the intellectual trajectories of the theoretical and critical Rosalind Krauss and the architect and theorist Peter Eisenman at The Institute for Architecture and Urban Studies - IAUS, headquartered in New York from 1967 to 1985. The Has placed himself as the core of interdisciplinary research of his time while promoting courses, Conferences, exhibitions, publications, and by bequeathing two specialized journals Would move the agendas of architecture and the arts in the following decades, Respectively, Oppositions: The Journal for Ideas and Criticism in Architecture (1973-1984) and October (1976 to present). The study goes through the questioning propositions of primacy Of artistic support in minimalism until the crystallization of these dynamics in the essay \"The sculpture In the extended field \", by Krauss; And the verification, in the early 1960s, of the need By the re-elaboration of issues of relevance to architecture and urbanism, which Would lead to the self-critical sense invested in the notion of disciplinary autonomy, and to the sense Self-referential autonomy of the architectural form, as engendered by Eisenman. At Experiences that would take physical space as constitutive of artistic work contrast In several levels with the conceptual modality examined by this architecture. Some of Points of support shared by the theoretical movements in question are the notions of Object, environment, formalism, language, modernism and postmodernism. Keeping each other Relations of complementarity, of reciprocity, of contradiction, the loan to such Between disciplines is understood in view of a second institutional plan.

Membrane transport processes underlie many purification technologies. The efficiency of a membrane separation process depends upon material throughput (flux), and the degree to which the membrane discriminates amongst species in the feed stock (selectivity). In a supported liquid membrane, flux may be enhanced by carrier molecules, which act as catalysts of translocation. Carrier molecules also confer selectivity, via differential molecular recognition of the substances in the feed stock. The effect of electrical potential on the flux and selectivity of carrier-containing supported liquid membranes is not well documented. We elected to study the effect of electrical potential on supported liquid membranes containing valinomycin, a potassium ionophore, and a calixarene ester, a sodium ionophore. In these systems, the open circuit membrane potential could be made positive or negative by the choice of anion. With both of these carriers, we observed that selectivity for potassium or sodium salts was dependent on the open circuit membrane potential. To confirm that electrical potential was responsible for the observed selectivity variance, we applied a potential across the membrane using a potentiostat. The applied potential created conditions for carrier-mediated electrodialysis, where oxidation and reduction reactions on either side of the membrane act as the driving force for transmembrane flux of charged species. In chronoamperometry experiments, we found that selectivity for potassium or sodium ion was dependent on the applied electrical potential. Subject to some constraints, selectivity and flux could be controlled by the application of positive or negative electrical potentials. Linear sweep voltammetry experiments allowed for the rapid prediction of the potential that must be applied to achieve optimal selectivity. We also found that membrane potential measurements, as well as the magnitude of current that flows in chronoamperometry experiments, could be interpreted to predict Eisenman and Hofmeister sequences. These results are novel, and await a convincing theoretical justification. The results also suggest that a separation technology could be developed around the idea of modulating selectivity with electrical potential. In this regard, carrier-mediated electrodialysis may be suitable for the sequestration of toxic or radioactive heavy metals, and a large number of carrier molecules for metal ions are currently known. The technique may also be suitable for separating organic molecules, such as high-value chiral pharmaceuticals. Supported liquid membranes are a useful research tool, but industrial applications may require a more stable membrane architecture. / Graduate

A atualidade é marcada pela descoberta contínua dos interstícios disciplinares como catalisadores de toda sorte de práticas; expressões como \"Campo ampliado\" e \"Complexo artearquitetura\" são chamadas para refletir como tais arranjos acontecem especialmente na confluência entre a arquitetura e as artes. A pesquisa busca localizar, na passagem dos anos 1960 aos 1980, um debate que solicitou desses campos a reconfiguração de seus instrumentos de análise, de crítica, de abordagem à forma, e mesmo uma nova inscrição de seus significados e abrangências: o cruzamento das trajetórias intelectuais da teórica e crítica de arte Rosalind Krauss e do arquiteto e teórico Peter Eisenman no The Institute for Architecture and Urban Studies - IAUS, sediado em Nova York de 1967 a 1985. O instituto colocou-se como núcleo da pesquisa interdisciplinar de seu tempo ao promover cursos, conferências, mostras, publicações, e ao legar dois periódicos especializados que encaminhariam as agendas da arquitetura e das artes nas décadas seguintes, respectivamente, Oppositions: A Jornal for Ideas and Criticism in Architecture (1973-1984) e October (1976 até o presente). O estudo passa pelas proposições questionadoras da primazia do suporte artístico no minimalismo até a cristalização dessas dinâmicas no ensaio \"A escultura no campo ampliado\", de Krauss; e pela verificação, no início dos anos 1960, da necessidade pela reelaboração das questões de relevância para a arquitetura e para o urbanismo, que levariam ao sentido autocrítico investido na noção de autonomia disciplinar, e ao sentido autorreferencial da autonomia da forma arquitetônica, como engendrado por Eisenman. As experiências que assumiriam o espaço físico como constitutivo do trabalho artístico contrastam em diversos níveis com a modalidade conceitual perscrutada por essa arquitetura. Alguns dos pontos de apoio compartilhados pelos movimentos teóricos em questão são as noções de objeto, ambiente, formalismo, linguagem, modernismo e pós-modernismo. Mantendo entre si relações de complementaridade, de reciprocidade, de contradição, o empréstimo a tais categorias entre disciplinas é compreendido em vista de um segundo plano institucional. / The current situation is marked by the continuous discovery of the disciplinary interstices as Catalysts of all kinds of practices; Expressions such as \"Expanded Field\" and \"Complexo artearquitetura\" Are called to reflect how such arrangements Confluence between architecture and the arts. The research seeks to locate, over the years 1960 to the 1980s, a debate that called for these areas to reconfigure their Instruments of analysis, criticism, approach to form, and even a new inscription of Their meanings and scope: the crossing of the intellectual trajectories of the theoretical and critical Rosalind Krauss and the architect and theorist Peter Eisenman at The Institute for Architecture and Urban Studies - IAUS, headquartered in New York from 1967 to 1985. The Has placed himself as the core of interdisciplinary research of his time while promoting courses, Conferences, exhibitions, publications, and by bequeathing two specialized journals Would move the agendas of architecture and the arts in the following decades, Respectively, Oppositions: The Journal for Ideas and Criticism in Architecture (1973-1984) and October (1976 to present). The study goes through the questioning propositions of primacy Of artistic support in minimalism until the crystallization of these dynamics in the essay \"The sculpture In the extended field \", by Krauss; And the verification, in the early 1960s, of the need By the re-elaboration of issues of relevance to architecture and urbanism, which Would lead to the self-critical sense invested in the notion of disciplinary autonomy, and to the sense Self-referential autonomy of the architectural form, as engendered by Eisenman. At Experiences that would take physical space as constitutive of artistic work contrast In several levels with the conceptual modality examined by this architecture. Some of Points of support shared by the theoretical movements in question are the notions of Object, environment, formalism, language, modernism and postmodernism. Keeping each other Relations of complementarity, of reciprocity, of contradiction, the loan to such Between disciplines is understood in view of a second institutional plan.

In this dissertation, I investigate connections between French philosophy and the theory of architecture from the mid-1960s to the early 1990s. In the mid-1960s, many architects became acutely aware of the crisis of modern architecture embodied in the failings of social housing, the routinized corporate modernism of the postwar period, and the commodification of design. They questioned the principles of the Modern Movement and emphasized the “arbitrary” nature of the relationship between form and function while turning to French structuralism, semiology, and post-structuralism for potential answers. My period of study spans from the the period of political uprisings of the 1960s to the advent of digital design in the early 1990s.To date, little in-depth research has been done on the close relation between French philosophy and architecture in this period and its role in foreshadowing postmodern developments. My dissertation addresses this gap by presenting case studies of the theoretical work of six different architects: Aldo Rossi, Alan Colquhoun, Mario Gandelsonas and Diana Agrest, Bernard Tschumi, and Peter Eisenman. These case studies share a common thread: a preoccupation with structuralist and poststructuralist concerns with language. However, concepts such as “structure,” “event,” and “meaning” often have different meanings for each of these architects. Thus, my project could be described as a history and criticism of architectural theory—one that focuses specifically on the dissonances and contradictions present within the theoretical writings of these architects, while examining the polemics and discussions between them. I consider their built work only to the extent that it helps to elucidate or challenge theoretical concepts. Thus, in my case study on Aldo Rossi’s writings, I interrogate the analogy between the structuralist concern for articulating discrete and finite linguistic units and the latter’s notion of “type” and urban morphology. In the chapter on Alan Colquhoun, I discuss the influence that the work of Roland Barthes, Claude Lévi-Strauss, and Ferdinand de Saussure had on his reflections about “meaning” and “convention” in architecture. In the case study on the work of Diana Agrest and Mario Gandelsonas, I examine the extent to which their understanding of “theory” and of “ideology” is indebted to the work of Louis Althusser and trace the influence of Roland Barthes, whose seminar on S/Z they attended in Paris before moving to New York in 1971. Likewise, I analyze the role that thinkers such as Henri Lefebvre, Roland Barthes, and the Tel Quel circle in the late 1970s, and Jacques Derrida in the early 1980s had on Bernard Tschumi’s writings on the “polysemy of meaning” and on the “event.” Finally, I examine Peter Eisenman’s collaboration with Jacques Derrida in the 1980s questioning Eisenman’s eclectic appropriation of Derrida’s philosophical concepts. Besides elucidating this significant period of architecture in which many of the fundamental principles of modern architecture were overturned, in the conclusion of this study, I discuss briefly the “post-critical turn” in the architectural scholarship of the past two decades with the hope of challenging its basic assumptions. My hope is to contribute, through its critical reevaluation, to theory’s renewal.