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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.
111

A political ecology of conservation : peri-urban agriculture and urban water needs in Mexico City

Heimo, Maija 05 1900 (has links)
This dissertation examines the cultural politics of conservation efforts in Mexico City, where in 2000, the city legislated a soil and water conservation plan in its rural areas. During 12-months of field work in the village of San Luis Tlaxialternalco 1 focused on how the conservation plan was to be established in the wetlands with chinampa agriculture, directly above one of the city's fresh water reservoirs. Political ecology research of conservation suggests that ecosystemic processes are intricately linked to economic and social processes on many scales. Post-structuralist analysis has complicated homogeneous and generalizing descriptions of social categories, politics of power, and the causality between socio-economic, political, cultural, and ecological factors. Research in political ecology emphasizes the diversity of actors and their subject positions and seeks to locate and understand the dynamics of power and agency within and outside formal institutions. I examined the negotiations of the conservation plan on three social scales and I looked at the intersecting axes of power and the knowledge of various actors, and how they inform conservation. On the scale of the state, a discursive analysis of the 'coloniality of power' of the conservation plan uncovers the city government's underlying assumptions about how the fanners' land use practices and social organization contribute to the conservation effort. I ask how do those assumptions define and condition chinampa farmers as 'Indian'? I conclude that in the conservation plan, colonially-based discourses constitute rural communities and agriculturalists in ways that subject them to the city's needs and interests, and exclude them from equal livelihood opportunities. In San Luis Tlaxialternalco I examined ideas of 'community' by documenting how the conservation plan affected local power relations. Analyzing the dynamics among chinampero farmers in their meetings, I exarnined the alliances in and the 'voice' of the village. I conclude that 'community' is a fluid and contested entity shaped by class, knowledge, and cultural values in unpredictable constellations. The tjaird scale of analysis concerns women's knowledge and voice, and examines ideas of silence as agency. In semi-structured interviews and participant observation in farmer women's everyday lives in San Luis I explored how they make decisions that affect the environment. The research shows that multiple constraints and opportunities, such as economic responsibilities, class, prestige, and patriarchy shape women's daily lives and direct their decisions to advance goals consistent with their values even when their decisions may undermine the long-term health of the environment they depend on. By looking at the micropolitics of conservation, my research provides cultural understanding of how at different scales decisions that affect ecology are made and how they are articulated through cultural idioms in the charged context of the conservation plan. The dissertation de-mystifies predominant representations of chinampas and chinamperos. It also complicates ideas of 'cornmirnity' and suggests that the analysis has to go beyond class and include values and knowledge. Further, I show that relevant ecological knowledge does not automatically lead to 'appropriate' action, and that silence can be a powerful tool that resists impositions and firrthers individual and community interests. Finally, the thesis suggests that political ecologists need to move away from equating power with action and activism within "progressive movements", and that conservation efforts need to have multiple goals and follow diverse strategies. / Arts, Faculty of / Geography, Department of / Graduate
112

Žijící oslava smrti - Día de los Muertos v současné mexické společnosti / Living celebration of death: The Day of the Dead in contemporary Mexican society

Ponocná, Petra January 2020 (has links)
Living celebration of death: The Day of the Dead in contemporary Mexican society Mgr. Petra Ponocná Abstract This work deals with perceptions of The Day of the Dead feast in the urban society of Mexico City in the context of official ideology of Mexican cultural nationalism. Dissertation was founded on fieldwork in Mexico City in two different locations, namely delegación Cuauhtémoc and delegación Xochimilco. I focus on the perceptions of the feast by research partners and I try to point out the process of self-identification with the locality and its relation to attitude formation to The Day of the Dead and national identity. I investigate the role of the state and the city in organizing the holiday and research partners reactions to these interventions. The work is based on long-term ethnographic research with distinctive elements of auto ethnography
113

Language and Identity of Transnational People in Central Mexico

Costello, Elena M. January 2021 (has links)
No description available.
114

"Kings of the Kongo, Slaves of the Virgin Mary: Black Religious Confraternities Performing Cultural Agency in the Early Modern Iberian Atlantic"

Valerio, Miguel A. January 2017 (has links)
No description available.
115

Dynamics of Coupled Natural-Human-Engineered Systems: An Urban Water Perspective on the Sustainable Management of Security and Resilience

Elisabeth Krueger (6564809) 10 June 2019 (has links)
<div>The security, resilience and sustainability of water supply in urban areas are of major concern in cities around the world. Their dynamics and long-term trajectories result from external change processes, as well as adaptive and maladaptive management practices aiming to secure urban livelihoods. This dissertation examines the dynamics of urban water systems from a social-ecological-technical systems perspective, in which infrastructure and institutions mediate the human-water-ecosystem relationship. </div><div><br></div><div>The three concepts of security, resilience and sustainability are often used interchangeably, making the achievement of goals addressing such challenges somewhat elusive. This becomes evident in the international policy arena, with the UN Sustainable Development Goals being the most prominent example, in which aspirations for achieving the different goals for different sectors lead to conflicting objectives. Similarly, the scientific literature remains inconclusive on characterizations and quantifiable metrics. These and other urban water challenges facing the global urban community are discussed, and research questions and objectives are introduced in Section 1. </div><div><br></div><div>In Section 2, I suggest distinct definitions of urban water security, resilience and sustainability: Security refers to the state of system functioning regarding water services; resilience refers to ability to absorb shocks, to adapt and transform, and therefore describes the dynamic, short- to medium-term system behavior in response to shocks and disturbances; sustainability aims to balance the needs in terms of ecology and society (humans and the economic systems they build) of today without compromising the ability to meet the needs of future generations. Therefore, sustainability refers to current and long-term impacts on nature and society of maintaining system functions, and therefore affects system trajectories. I suggest that sustainability should include not only local effects, but consider impacts across scales and sectors. I propose methods for the quantification of urban water security, resilience and sustainability, an approach for modeling dynamic water system behavior, as well as an integrated framework combining the three dimensions for a holistic assessment of urban water supply systems. The framework integrates natural, human and engineered system components (“Capital Portfolio Approach”) and is applied to a range of case study cities selected from a broad range of hydro-climatic and socio-economic regions on four continents. Data on urban water infrastructure and services were collected from utilities in two cities (Amman, Jordan; Ulaanbaatar, Mongolia), key stakeholder interviews and a household survey conducted in Amman. Publicly available, empirical utility data and globally accessible datasets were used to support these and additional case studies. </div><div><br></div><div>The data show that community adaptation significantly contributes to urban water security and resilience, but the ability to adapt is highly heterogeneous across and within cities, leading to large inequality of water security. In cities with high levels of water security and resilience, adaptive capacity remains latent (inactive), while water-insecure cities rely on community adaptation for the self-provision of services. The framework is applied for assessing individual urban water systems, as well as for cross-city comparison for different types of cities. Results show that cities fall along a continuous gradient, ranging from water insecure and non-resilient cities with inadequate service provision prone to failure in response to extant shock regimes, to water secure and resilient systems with high levels of services and immediate recovery after shocks. Although limited by diverse constraints, the analyses show that urban water security and resilience tend to co-evolve, whereas sustainability, which considers local and global sustainable management, shows highly variable results across cities. I propose that the management of urban water systems should maintain a balance of security, resilience and sustainability.</div><div><br></div><div>The focus in Section 3 is on intra-city patterns and mechanisms, which contribute to urban water security, resilience and sustainability. In spite of engineering design and planning, and against common expectations, intra-city patterns emerge from self-organizing processes similar to those found in nature. These are related to growth processes following the principle of preferential attachment and functional efficiency considerations, which lead to Pareto power-law probability distributions characteristic of scale-free-like structures. Results presented here show that such structures are also present in urban water distribution and sanitary sewer networks, and how deviation from such specific patterns can result in vulnerability towards cascading failures. In addition, unbounded growth, unmanaged demand and unregulated water markets can lead to large inequality, which increases failure vulnerability. </div><div><br></div><div>The introduction of infrastructure and institutions for providing urban water services intercedes and mediates the human-water relationship. Complexity of infrastructural and institutional setups, growth patterns, management strategies and practices result in different levels of disconnects between citizens and the ecosystems providing freshwater resources. “Invisibility” of services to citizens results from maximized water system performance. It can lead to a lack of awareness about the effort and underlying infrastructure and institutions that operate for delivering services. Data for the seven cities illustrate different portfolios of complexity, invisibility and disconnection. Empirical data gathered in a household survey and key stakeholder interviews in Amman reveals that a misalignment of stakeholder perceptions resulting from the lack of information flow between citizens and urban managers can be misguiding and can constrain the decision-making space. Unsustainable practices are fostered by invisibility and disconnection and exacerbate the threats to urban water security and resilience. Such challenges are investigated in the context of urban water system traps: the poverty and the rigidity trap. Results indicate that urban water poverty is associated with local unsustainability, while rigidity traps combined with urban demand growth gravitate towards global unsustainability. </div><div><br></div><div>Returning to the city-level in Section 4, I investigate urban water system evolution. The question how the trajectories of urban water security, resilience and sustainability can be managed is examined using insights from hydrological and social-ecological systems research. I propose an “Urban Budyko Landscape”, which compares urban water supply systems to hydrological catchments and highlights the different roles of supply- and demand-management of water and water-related urban services. A global assessment of 38 cities around the world puts the seven case studies in perspective, emphasizing the relevance of the proposed framework and the representative, archetypal character of the selected case studies. </div><div><br></div><div>Furthermore, I examine how managing for the different dimensions of the CPA (capital availability, robustness, risk and sustainable management) determines the trajectories of urban water systems. This is done by integrating the CPA with the components of social-ecological system resilience, which explain how control of the different components determines the movement of systems through states of security and resilience in a stability landscape. Finally, potential feedbacks resulting from the global environment are investigated with respect to the role that globally sustainable local and regional water management can play in determining the trajectories of urban water systems. These assessments demonstrate how the impact of supply-oriented strategies reach beyond local, regional and into global boundaries for meeting a growing urban demand, and come at the cost of global sustainability and communities elsewhere.</div><div><br></div><div>Despite stark differences between individual cities and large heterogeneities within cities, convergent trends and patterns emerge across systems and are revealed through application of the proposed concepts and frameworks. The implications of these findings are discussed in Section 5, and are summarized here as follows: </div><div>1) The management of urban water systems needs to move beyond the security and resilience paradigms, which focus on current system functioning and short-term behavior. Sustaining a growing global, urban population will require addressing the long-term, cross-scale and inter-sector impacts of achieving and maintaining urban water security and resilience. </div><div>2) Emergent spatial patterns are driven by optimization for the objective functions. Avoiding traps, cascading failure, extreme inequality and maintaining global urban livability requires a balance of supply- and demand-management, consideration of system complexity, size and reach (i.e., footprint), as well as internal structures and management strategies (connectedness and modularity).</div><div>3) Urban water security and resilience are threatened by long-term decline, which necessitates the transformation to urban sustainability. The key to sustainability lies in experimentation, modularization and the incorporation of interdependencies across scales, systems and sectors.</div><div><br></div>
116

[pt] A ANÁLISE DE PADRÕES COMO FERRAMENTA PARA A DEFINIÇÃO DA ESSÊNCIA DE UM LUGAR SITUADO NA PERIFERIA URBANA SUL DA CIDADE DO MÉXICO, NO ÂMBITO DO DESENVOLVIMENTO REGENERATIVO / [en] ANALYSIS OF PATTERNS AS A TOOL FOR DEFINING THE ESSENCE OF A PLACE IN MEXICO CITY S SOUTHERN URBAN PERIPHERY, BASED ON REGENERATIVE DEVELOPMENT / [es] EL ANÁLISIS DE PATRONES COMO HERRAMIENTA PARA LA DEFINICIÓN DE LA ESENCIA DE UN LUGAR EMPLAZADO EN LA PERIFERIA URBANA SUR DE LA CIUDAD DE MÉXICO, EN EL MARCO DEL DESARROLLO REGENERATIVO

CARLOS LUIS DELGADO CASTILLO 09 March 2021 (has links)
[pt] A periferia urbana sul da Cidade do México apresenta atualmente um padrão de crescimento conhecido como cidade difusa, em que a dispersão urbana e mistura de atividades urbanas e rurais põem em interdito a dualidade campo-cidade com a que havia sido tratado tradicionalmente o limite no marco de planejamento territorial; e merece o reconhecimento de seu possível rol na promoção do desenvolvimento sustentável deste centro povoado, à luz de uma consolidação urbana futura e de sua vizinhança com sistemas naturais frágeis. Trata-se, pois, de um espaço que deveria ser planejado partindo do reconhecimento destas novas dinâmicas e em que a metodologia de desenvolvimento e design regenerativos, criada à luz do paradigma da sustentabilidade ecológica, poderia ser útil para definir delineamentos que orientassem o ordenamento sustentável deste território. Esta metodologia reconhece o lugar de intervenção e seu caráter único (essência), como as bases fundamentais do processo de definição de estratégias que permitiriam fomentar seu desenvolvimento regenerativo a partir de projetos arquitetônicos ou urbanos. Não obstante, apesar da metodologia propor um marco de trabalho que compreenda o lugar a partir do reconhecimento dos padrões presentes, não fica claro como, em função dos mesmos, se pode determinar os que são centrais e definem, por sua vez, seu caráter único. Ante este vazio metodológico para definir a essência de um lugar a partir do entendimento de seus padrões, e considerando-se que, de acordo com a teoria de sistemas complexos, a compreensão das relações entre os elementos de um sistema permite entender sua estrutura e determinar por sua vez, aqueles que seriam centrais para a organização das dinâmicas presentes, se identificou a metodologia Matriz de Influência como uma possível ferramenta para compreender as relações dos elementos de um sistema a partir da detecção dos níveis de influência dos mesmos. Em função do anterior, se colocou como objetivo desenhar uma ferramenta metodológica que permita detectar os padrões da periferia urbana da Cidade do México que poderiam definir a essência do lugar situado em este território e promover seu desenvolvimento regenerativo; para o qual foi criada uma versão da Matriz de Influência adaptada ao estudo dos padrões e foi expandida a análise objetiva e subjetiva da metodologia de Desenvolvimento e Design Regenerativos. Finalmente, a ferramenta proposta foi testada no Santa María Tepepan, Xochimilco, com o objetivo de determinar sua essência. / [en] Mexico City s south urban periphery is now characterized by a growth pattern known as dispersed city, where urban dispersion and mixing of urban and rural activities, calls into question the rural-urban duality with which the territorial planning had traditionally treated this fringe. It also merits recognition for its possible role in promoting the sustainable development of this city, especially considering its future urban consolidation and its proximity to fragile natural systems. Thus, it is a space that should be planned keeping these new dynamics in mind, and where the regenerative development and design methodology, created under the paradigm of ecological sustainability, could be useful to define guidelines that orient the sustainable development of this area. This methodology recognizes the place itself and its unique character (essence), as the fundamental bases of the project, hence useful in defining the strategies for its regenerative development through architectural or urban projects. Even though the methodology proposes a framework for understanding the place of implementation recognizing its present patterns, it is not clear how to determine the core patterns that define the place’s unique character. To address this methodological void and define the essence of a place on the bases of an understanding of its patterns, and considering that, according to the theory of complex systems, the compression of relations amongst the elements of a system permits us to understand and determine those which are central to the present organizational dynamics; it has been identified the methodology called Influence Matrix which permits leads to the understanding of the relationallity of the elements of a system by detecting their own level of influence. Hence, the proposed objective was to design a methodological tool to detect the patterns of the southern urban periphery of Mexico City that could define the essence of a place located within this territory, and therefore promote its regenerative development. This methodological tool was based on a version of the Matrix of Influence, adapted to the analysis of patterns and on an expanded objective and subjective analysis from the Regenerative Development and Design methodology. Finally, the proposed tool was tested in the town of Santa María Tepepan, Xochimilco, to determine its essence. / [es] La periferia urbana Sur de la Ciudad de México presenta actualmente un patrón de crecimiento conocido como ciudad difusa, en donde la dispersión urbana y mezcla de actividades urbanas y rurales, pone en entredicho la dualidad campo-ciudad con la que había sido tratado tradicionalmente este borde en el marco de la planeación territorial; y amerita el reconocimiento de su posible rol en la promoción del desarrollo sustentable de este centro poblado, a la luz de una consolidación urbana futura y de su cercanía con sistemas naturales frágiles. Se trata pues de un espacio que debería planearse partiendo del reconocimiento de estas nuevas dinámicas y en donde la metodología de Desarrollo y Diseño Regenerativos, creada a la luz del paradigma de la sustentabilidad ecológica, podría ser útil para definir lineamientos que orienten el ordenamiento sustentable de este territorio. Esta metodología reconoce el lugar de intervención y su carácter único (esencia), como las bases fundamentales del proceso de definición de estrategias que permitirían fomentar su desarrollo regenerativo a partir de proyectos arquitectónicos o urbanos. No obstante, si bien es cierto que la metodología propone un marco de trabajo para comprender el lugar a partir del reconocimiento de los patrones presentes, no queda claro cómo en función de los mismos se pueden determinar los que son centrales y definen a su vez su carácter único. Ante este vacío metodológico para definir la esencia de un lugar a partir del entendimiento de sus patrones, y considerando que de acuerdo a la teoría de los sistemas complejos, la comprensión de las relaciones entre los elementos de un sistema permite entender su estructura y determinar a su vez los que son centrales para la organización de las dinámicas presentes; se identificó la metodología Matriz de Influencia, como una posible herramienta que permitiría justamente comprender las relaciones de los elementos de un sistema a partir de la detección de los niveles de influencia de los mismos. En función de lo anterior, se planteó como objetivo diseñar una herramienta metodológica que permita detectar los patrones de la periferia urbana Sur de la Ciudad de México que podrían definir la esencia de un lugar emplazado en este territorio y promover su desarrollo regenerativo; para lo cual se hizo una versión de la Matriz de Influencia adaptada al estudio de patrones y se amplió el análisis objetivo y subjetivo manejado en el marco de la metodología de Desarrollo y Diseño Regenerativos. Finalmente, la herramienta propuesta fue probada en el pueblo de Santa María Tepepan, Xochimilco, con miras a determinar su esencia.
117

L'eau à Mexico : problème de gouvernance ou de gouvernabilité ? = El agua en la metropole de México : un problema de gobernanza o de gobernabilidad ?

De Alba Murrieta, Felipe de Jesús January 2008 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal
118

L'eau à Mexico : problème de gouvernance ou de gouvernabilité ? = El agua en la metropole de México : un problema de gobernanza o de gobernabilidad ?

De Alba Murrieta, Felipe de Jesús January 2008 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal.

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