916 resultados para Historical natural landscape


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Wilkinson, Jane, 'Writing Home: Martin Walser's Ein fliehendes Pferd as Anti-Tourist Literature', Journal of Tourism and Cultural Change (2006) 4(3) pp.001-017 RAE2008

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Neo-paganism is a vibrant, dynamic global movement, which has had a significant cultural impact. Neo-paganism is an umbrella term for a wide range of spiritual practices, often described as nature- or earth-based spirituality. There are different “paths” or spiritual traditions within this movement, of which Druidry, Wicca and other forms of Pagan Witchcraft are included in this research. The present work is an ethnographic study of the worldview and ritual practices of the Irish neo-pagan community. It is an enquiry into (a) what characterises the neo-pagan worldview and (b) how this worldview is expressed through ritual behaviour. In order to collect data, the methodology of participant observation and ethnographic interviewing was employed. The thesis comprises a collection of “insider” accounts of what it is like to be a neo-pagan in Ireland and analysis of these narratives, which gives insight into different aspects of neopagan culture. In the discussion, the use of mythology is examined in regard to how mythic narrative is connected to identity formation. Irish cultural symbols are observed as resources utilised in the construction of the movement’s overall character. The interconnectedness of the natural landscape, the numinous and mythology gives rise to creative expression through various forms of neo-pagan artworks, which are discussed herein. The identifying features and key issues of Irish neo-pagan culture are addressed. These key issues are expressed as prominent themes and symbols of their discourse. Neo-pagan dialogue often features discussion of the relationship that this cultural group has with the Irish landscape, history, and indigenous and popular Irish religion. Some of the specific aspects of neo-pagan culture examined are magical worldview, the notion of holism, different types of ritual practices (festivals, life cycle rituals, healing), and material culture. The thesis presents an in-depth analysis of neopagan cultural expressions and their significance as cultural processes

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Natural landscape boundaries between vegetation communities are dynamically influenced by the selective grazing of herbivores. Here we show how this may be an emergent property of very simple animal decisions, without the need for any sophisticated choice rules etc., using a model based on biased diffusion. Animal grazing intensity is coupled with plant competition, resulting in reaction-diffusion dynamics, from which stable boundaries spontaneously emerge. In the model, animals affect their resources by both consumption and trampling. It is assumed that forage consists of two heterogeneously distributed competing resource species, one that is preferred (grass) over the other (heather) by the animals. The solutions to the resulting system of differential equations for three cases a) optimal foraging, b) random walk foraging and c) taxis-diffusion are presented. Optimal and random foraging gave unrealistic results, but taxis-diffusion accorded well with field observations. Persistent boundaries between patches of near-monoculture vegetation were predicted, with these boundaries drifting in response to overall grazing pressure (grass advancing with increased grazing and vice versa). The reaction-taxis-diffusion model provides the first mathematical explanation for such vegetation mosaic dynamics and the parameters of the model are open to experimental testing.

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This project involves the construction of a dwelling in the outskirts of Dublin City. Situated in a disused quarry, the house act as an inhabited bridge, spanning between natural and man made outcrops, service structures and a shared entrance staircase. The houses language derives from the structure necessary to achieve these spans.
The section internally is modeled to present a variety of scales of spaces. More intimate living spaces and bedrooms occur in a lower, north-facing wing. Taller living spaces address the south.

Incorporating rainwater harvesting, wood-gasifying boilers, on site wind powered electrical generation, solar thermal panels and very high levels of insulation the houses are close to energy neutral. The fact that the house is constructed in massive timber construction means that 250 tonnes of carbon are sequestered in its construction. The design includes a 25yar replanting strategy to replace the existing coniferous-forested surrounds with native species in a coppiced planting strategy to allow ongoing fuel for the house, and cash crops to be sold on.

Located in an area of outstanding natural beauty the planning and design of the house involved research into patterns of rural development, the relationship between man made interventions and the natural landscape and the technology of the vernacular. This latter research forms part of the themes being explored under the Kevin Kieran Arts Council / OPW Bursary

Aims / Objectives Questions

1 To design and construct a low energy place to dwell.
2 To investigate the relationship between man-made interventions and new construction in an area of outstanding natural beauty.
3 To derive a language of construction that is contemporary in nature but refers to precedents embedded in the vernacular.
4 To develop a low-carbon form of construction that allows the construction of the house to act to sequester carbon
5 To make a contemporary addition in sympathy with the qualities of the existing site

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This paper evaluates the potential of gabions as roadside safety barriers. Gabions have the capacity to blend into natural landscape, suggesting that they could be used as a safety barrier for low-volume road in scenic environments. In fact, gabions have already been used for this purpose in Nepal, but the impact response was not evaluated. This paper reports on numerical and experimental investigations performed on a new gabion barrier prototype. To assess the potential use as a roadside barrier, the optimal gabion unit size and mass were investigated using multibody analysis and four sets of 1:4 scaled crash tests were carried out to study the local vehicle-barrier interaction. The barrier prototype was then finalised and subjected to a TB31 crash test according to the European EN1317 standard for N1 safety barriers. The test resulted in a failure due to the rollover of the vehicle and tearing of the gabion mesh yielding a large working width. It was found that although the system potentially has the necessary mass to contain a vehicle, the barrier front face does not have the necessary stiffness and strength to contain the gabion stone filling and hence redirect the vehicle. In the EN1317 test, the gabion barrier acted as a ramp for the impacting vehicle, causing rollover. 

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National park models have evolved in tandem with the emergence of a multifunctional countryside. Sustainable development has been added to the traditional twin aims of conservation and recreation. This is typified by recent national park designations, such as the Cairngorms National Park in Scotland. A proposed Mournes national park in Northern Ireland has evolved a stage further with a model of national park to deliver national economic goals envisaged by government. This seeks to commodify the natural landscape. This paper compares Cairngorm and Mourne stakeholders’ views on the principal features of both models: park aims, management structures and planning functions. While Cairngorm stakeholders were largely positive from the outset, the model of national park introduced is not without criticism. Conversely, Mourne stakeholders have adopted an anti-national park stance. Nevertheless, the model of national park proposed possessing a strong economic imperative, an absence of the Sandford Principle as a means to manage likely conflicts, and lacking any planning powers in its own right, may still be insufficient to bring about widespread support for a Mourne national park. Such a model is also likely to accelerate the degradation of the Mourne landscape. Competing national identities (British and Irish) provide an additional dimension to the national park debate in Northern Ireland. Deep ideological cleavages are capable of derailing the introduction of a national park irrespective of the model proposed. In Northern Ireland the national park debate is not only about reconciling environmental and economic interests but also political and ethno-national differences.

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The garment we now recognise as the Aran jumper emerged as an international symbol of Ireland from the twin twentieth century transatlantic flows of migration and tourism. Its power as a heritage object derives from: 1) the myth commonly associated with the object, in which the corpse of a drowned fisherman is identified and claimed by his family due to the stitch patterns of his jumper (Pádraig Ó Síochain 1962; Annette Lynch and Mitchell Strauss 2014); 2) the meanings attached to those stitch patterns, which have been read, for example, as genealogical records, representations of the natural landscape and references to Christian and pre-Christian ‘Celtic’ religion (Heinz Kiewe 1967; Catherine Nash 1996); and 3) booming popular interest in textile heritage on both sides of the Atlantic, fed by the reframing of domestic crafts such as knitting as privileged leisure pursuits (Rachel Maines 2009; Jo Turney 2009). The myth of the drowned fisherman plays into transatlantic migration narratives of loss and reclamation, promising a shared heritage that needs only to be decoded. The idea of the garment’s surface acting as text (or map) situates it within a preliterate idyll of romantic primitivism, while obscuring the circumstances of its manufacture. The contemporary resurgence in home textile production as recreation, mediated through transnational online networks, creates new markets for heritage textile products while attracting critical attention to the processes through which such objects, and mythologies, are produced. The Aran jumper’s associations with kinship, domesticity and national character make it a powerful tool in the promotion of ancestral (or genealogical) tourism, through marketing efforts such as The Gathering 2013. Nash’s (2010; 2014) work demonstrates the potential for such touristic encounters to disrupt and enrich public conceptions of heritage, belonging and relatedness. While the Aran jumper has been used to commodify a simplistic sense of mutuality between Ireland and north America, it carries complex transatlantic messages in both directions.

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La variabilité génétique actuelle est influencée par une combinaison complexe de variables historiques et contemporaines. Dès lors, une interprétation juste de l’impact des processus actuels nécessite une compréhension profonde des processus historiques ayant influencé la variabilité génétique. En se basant sur la prémisse que des populations proches devraient partager une histoire commune récente, nombreuses études, effectuées à petite échelle spatiale, ne prennent pas en considération l’effet potentiel des processus historiques. Cette thèse avait pour but de vérifier la validité de cette prémisse en estimant l’effet de la dispersion historique à grande et à petite échelle spatiale. Le premier volet de cette thèse avait pour but d’évaluer l’impact de la dispersion historique sur la répartition des organismes à grande échelle spatiale. Pour ce faire, les moules d’eau douce du genre flotteurs (Pyganodon spp.) ont servies de modèle biologique. Les moules d'eau douce se dispersent principalement au stade larvaire en tant que parasites des poissons. Une série de modèles nuls ont été développés pour évaluer la co-occurrence entre des parasites et leurs hôtes potenitels. Les associations distinctes du flotteur de Terre-Neuve (P. fragilis) avec des espèces de poissons euryhalins permettent d’expliquer sa répartition. Ces associations distinctes ont également pu favoriser la différenciation entre le flotteur de Terre-Neuve et son taxon soeur : le flotteur de l’Est (P. cataracta). Cette étude a démontré les effets des associations biologiques historiques sur les répartitions à grande échelle spatiale. Le second volet de cette thèse avait pour but d’évaluer l’impact de la dispersion historique sur la variabilité génétique, à petite échelle spatiale. Cette fois, différentes populations de crapet de roche (Ambloplites rupestris) et de crapet soleil (Lepomis gibbosus), dans des drainages adjacents ont servies de modèle biologique. Les différences frappantes observées entre les deux espèces suggèrent des patrons de colonisation opposés. La faible diversité génétique observée en amont des drainages et la forte différenciation observée entre les drainages pour les populations de crapet de roche suggèrent que cette espèce aurait colonisé les drainages à partir d'une source en aval. Au contraire, la faible différenciation et la forte diversité génétique observées en amont des drainages pour les populations de crapet soleil suggèrent une colonisation depuis l’amont, induisant du même coup un faux signal de flux génique entre les drainages. La présente étude a démontré que la dispersion historique peut entraver la capacité d'estimer la connectivité actuelle, à petite échelle spatiale, invalidant ainsi la prémisse testée dans cette thèse. Les impacts des processus historiques sur la variabilité génétique ne sont pas faciles à démontrer. Le troisième volet de cette thèse avait pour but de développer une méthode permettant de les détecter. La méthode proposée est très souple et favorise la comparaison entre la variabilité génétique et plusieurs hypothèses de dispersion. La méthode pourrait donc être utilisée pour comparer des hypothèses de dispersion basées sur le paysage historique et sur le paysage actuel et ainsi permettre l’évaluation des impacts historiques et contemporains sur la variabilité génétique. Les performances de la méthode sont présentées pour plusieurs scénarios de simulations, d’une complexité croissante. Malgré un impact de la différentiation globale, du nombre d’individus ou du nombre de loci échantillonné, la méthode apparaît hautement efficace. Afin d’illustrer le potentiel de la méthode, deux jeux de données empiriques très contrastés, publiés précédemment, ont été ré analysés. Cette thèse a démontré les impacts de la dispersion historique sur la variabilité génétique à différentes échelles spatiales. Les effets historiques potentiels doivent être pris en considération avant d’évaluer les impacts des processus écologiques sur la variabilité génétique. Bref, il faut intégrer l’évolution à l’écologie.

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L'urbanisation représente une menace majeure pour la biodiversité. Ce mémoire de maîtrise vise à comprendre ses effets sur la composition fonctionnelle et l'homogénéisation biotique dans les forêts riveraines. Des inventaires floristiques ont été réalisés dans 57 forêts riveraines de la région de Montréal. Afin d'étudier la variation de la composition fonctionnelle avec l'urbanisation, des moyennes pondérées de traits par communauté ont été calculées pour les arbres, arbustes et herbacées. Chaque forêt a été caractérisée par des variables relatives au paysage urbain environnant, aux conditions locales des forêts et aux processus spatiaux. Les conditions locales, notamment les inondations, exerçaient une pression de sélection dominante sur les traits. L'effet du paysage était indirect, agissant via l'altération des régimes hydrologiques. La dispersion le long des rivières était aussi un processus important dans la structuration des forêts riveraines. Les changements dans la diversité β taxonomique et fonctionnelle des herbacées ont été étudiés entre trois niveaux d'urbanisation et d'inondation. Alors que l'urbanisation a favorisé une différenciation taxonomique, les inondations ont favorisé une homogénéisation taxonomique, sans influencer la diversité β fonctionnelle. L'urbanisation était l'élément déclencheur des changements de la diversité β, directement, en causant un gain en espèces exotiques et une diminution de la richesse totale dans les forêts très urbanisées, et, indirectement, en entraînant un important turnover d'espèces par l'altération des régimes hydrologiques. Globalement, ces résultats suggèrent que la modification des processus naturels par les activités anthropiques est le principal moteur de changements dans les communautés riveraines urbaines.

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Issues concerning coastal regions, especially the beaches have sparked quite complex because studies are there that most people in the world has secured housing, mainly from the half of the last century, without concern for the natural dynamics of these environments, which have complex interactions of continental and oceanic, coastal responsible for changes in locations that can be perceived in a few years and sometimes even a few days or hours. The search took as main goal, analyze the Genipabu Beach, in the municipality of Extremoz/RN, fragile environment and rapid momentum, which has been occupied in a disorderly and unplanned. Carried out a beach monitoring through profiles beach environments: defined stages morphodynamics; realization of characterize hydrodynamic processes; identification of changes in the landscape. To this end, made necessary a survey from the bibliographic collection for theoretical and conceptual rationale. An empirical step for conducting the environmental characterization of hydrodynamics, leveling and topographic analysis of sediments (in laboratory), for observation of changes in features, influenced, and natural dynamics, anthropic action that increasingly comes taking the characteristics from the natural landscape. Underlines therefore the importance of academic studies in several areas in these environments, for setting up a coastal zoning giving public subsidies for managers for managing and planning the use and occupation of the coast in their areas

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Em uma paisagem natural, os solos apresentam uma ampla variação dos atributos químicos, tanto vertical como horizontal, resultante da interação dos diversos fatores de formação envolvidos. Este trabalho foi desenvolvido em Guariba-SP, com o objetivo de avaliar a variabilidade espacial do pH, cálcio (Ca), magnésio (Mg) e saturação por bases (V%) em um Latossolo Vermelho eutroférrico sob cultivo de cana-de-açúcar, utilizando-se métodos da estatística clássica, análise geoestatística e técnica de interpolação de dados, com a finalidade de observar padrões de ocorrência destes atributos na paisagem. No terço inferior da encosta, após análise detalhada da variação do gradiente do declive, caracterizaram-se dois compartimentos (I e II), sob os quais os solos foram amostrados nos pontos de cruzamento de uma malha, com intervalos regulares de 50m, perfazendo um total de 206 pontos, nas profundidades de 0,0-0,2m e 0,6-0,8m. Os maiores alcances foram observados na profundidade de 0,0-0,2m para todos os atributos estudados, com exceção do cálcio que apresentou comportamento inverso, refletindo os efeitos do maior grau de intemperismo e do manejo na variabilidade natural dos solos. Pequenas variações, nas formas do relevo, condicionam variabilidade diferenciada para os atributos químicos.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Em vista de em minha trajetória acadêmica ter tido um ensino tradicional, no qual era desestimulada a participar das aulas, não emitindo minhas idéias e opiniões, procurei como professora, construir um percurso de diálogo com meus alunos, valorizando os seus conhecimentos sobre o tema em foco e articulando-os aos veiculados na escola. Assim, norteada pela idéia de resgatar/valorizar os conhecimentos que os alunos apreendem no seu meio familiar e cultural, delineei esta dissertação como um estudo sobre as representações sociais de água de alunos de 4ª série do ensino fundamental da Escola de Aplicação da Universidade Federal do Pará, no ano de 2007. Utilizei como suporte teórico metodológico a teoria das Representações Sociais formulada por Serge Moscovici articulada com a teoria do Núcleo Central de Jean-Claude Abric. A metodologia, caracterizada por uma abordagem qualitativa e quantitativa, teve como técnicas de coleta de dados, o questionário, a evocação livre a partir da palavra indutora água, complementados pela entrevista. A pesquisa teve como sujeitos 110 estudantes da 4ª série, na faixa etária de nove a treze anos, sendo 60 do sexo feminino. A análise dos resultados revelou aspectos importantes sobre os alunos e suas representações e me possibilitou identificar que os conteúdos da representação social de água estão relacionados aos seguintes significados e sentidos: 1) ao consumo de água nos hábitos cotidianos de higiene e na alimentação; 2) a paisagem natural, formada de recursos hídricos; 3) aos fenômenos naturais, como a chuva e tsunami; 4) ao seu valor e a sua importância, como fonte de vida e de saúde; 5) as atitudes e ações concretas de tratamento da água; 6) ao cuidado e conservação do patrimônio hídrico natural; 7) ao seu simbolismo: a água como objeto de contemplação, beleza e de lazer e 8) as suas características. Quanto à estrutura da representação social de água, o núcleo central foi constituído pelas categorias semânticas: banho, beber, vida, limpa, rio e chuva e o sistema periférico, pelas categorias: economizar, poluição, lavar os alimentos, cachoeira, fazer comida, cristalina, diversão, mar, paz, tsunami, útil, poço e gota. A compreensão das representações dos alunos sobre a água foi fundamental para minhas reflexões sobre esse tema e pela possibilidade de elaboração de novas práticas pedagógicas embasadas no desafio de formar alunos-cidadãos que reconheçam a necessidade do uso responsável da água como bem finito que precisa ser conservado e preservado.