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Imaginaire du terroir et territoire de communication sensible / Terroir’s imaginary and tangible communication territoryTavilla, Valériane 12 October 2012 (has links)
Cette thèse vise à appréhender le terroir comme un territoire de communication sensible dont l’absence de traduction est déjà problématique. C’est à la fois un terme qui s’impose à tous, dans le monde entier, et un lieu mal défini du discours. La notion reste fuyante, au-delà du droit, de l’histoire et de l’agronomie. Elle séduit le « mangeur social » porté à satisfaire ses désirs d’authenticité et de goût. A cet égard, la profusion des discours médiatiques en déploie l’imaginaire, entre patrimoine alimentaire et, plus profondément, l’identité symbolique du mangeur. Des tensions se créent entre les discours qui l’érigent en modèle et idéalisent son image. Un retour sur l’histoire et les règles du terroir confronte ce périmètre notionnel à la réalité quotidienne et met en relief sa polysémie, sa polymorphie. Des écarts sémantiques existent entre les critères figés par les normes et les pratiques du mangeur envers« des nourritures nostalgiques ». L’étude du terroir comme construit social suppose un déplacement paradigmatique, depuis les croyances et les labels, jusqu’aux médiations du terroir dans des dispositifs variés. Ces derniers créent du sens autour de savoir-faire et de valeurs. L’objectif est de montrer que des significations contradictoires coexistent et animent les médiations sensibles du terroir dans un espace figuratif complexe (sensations, objets, espaces, discours, etc.). Nous mettons enfin à l’épreuve notre concept et notre image du terroir dans deux lieux possibles à concevoir comme espaces publics symboliques : une association de consommateurs et un forum de discussion. / The aim of this thesis is to understand terroir as a tangible communication territory, starting with the lack of conceptual translation in foreign language. Terroir comes to rest in a social space characterized by fleeing models, above and beyond Law, History and Agronomy. Food and eating become the space of contradictory signs for the “social eater” attuned to hedonism and control. The object seduces him to satisfy his desires for authenticity and taste. Discourses and scenes show terroir in an imaginary world, made up of food patrimony and symbolic identity. But it arouses tensions because economic actors take it hold of it. A review of the history and rules about terroir’s provokes its confrontation with everyday reality and reveals its polysemy. Certain differences of meaning exist between criteria established by norms and the eater’s practices toward “nostalgic food”. The study of terroir as a social construct proceed through paradigmatic displacement, from beliefs and labels, to terroir’s mediations in devices. They create meaning around know -how and certain values. The aims, here is to demonstrate that multiple significations coexist and to study how the mediations of terroir’s logic of the senses in figurative spaces are created. We then tested it in two spaces similar to symbolical public spaces: consumers‘s association and internet forum.
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Deslocamento, interculturalidade e transitividade migratória em filmes dirigidos por Karim Aïnouz / Displacement, interculturality and migratory transitivity in films directed by Karim AïnouzMedeiros, André Aparecido 15 August 2018 (has links)
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Previous issue date: 2018-08-15 / A pesquisa tem por finalidade analisar as representações de deslocamentos, interculturalidade e transitividade migratória em filmes dirigidos por Karim Aïnouz, com destaque para O Céu de Suely (2006), Viajo porque preciso, volto porque te amo (codireção de Marcelo Gomes, 2009) e Praia do Futuro (2014). Considerado um cineasta político, Karim se destaca por sua singularidade autoral na forma de narrar identidades em transitividade. Utiliza a linguagem cinematográfica para a representação de deslocamentos e migrações, fenômeno cujas problemáticas sociais associadas estão entre as mais complexas e graves do nosso tempo. Como instrumentos metodológicos, utilizamos: pesquisa bibliográfica, entrevista estruturada com especialistas da área e análise fílmica dos filmes citados. Entendendo o cinema como um meio de leitura histórico-social e como um produtor de imaginários, atenta-se para as características do enredo das obras e para a conjuntura político-cultural das produções. O olhar intercultural, sem distinção de origens, torna possível a abordagem equilibrada dos filmes analisados e de outros trabalhos semelhantes, favorecendo o diálogo cultural e a cidadania global. / This research aims to analyze the representations of displacement, interculturality, and migratory transitivity in films directed by Karim Aïnouz, especially Love for Sale or Suely in the Sky (O Céu de Suely, 2006), I Travel Because I Have to, I Come Back Because I Love You (Viajo porque preciso, volto porque te amo, codirection by Marcelo Gomes, 2009), and Futuro Beach (Praia do Futuro, 2014). Considered a political filmmaker, Karim stands out for his singularity as an author in the way of narrating identities in transitivity. He uses the cinematic language for the representation of displacements and migrations, a phenomenon whose associated social problems are among the most complex and serious of our time. As methodological instruments, we used: bibliographical research, structured interviews with specialists in the field, and film analysis. Understanding the cinema as a means of socialhistorical reading and as a creator of imaginaries, attentive to the works’ plot features and the political and cultural situation of the productions. The intercultural view, without distinction of origins, makes possible the balanced approach of the analyzed films and other similar works, contributing to cultural dialogue and global citizenship
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An exploratory study of forced displacement and some cultural consequences among the Yukpa of Maracaibo, VenezuelaGonzález, Luis J. 26 October 2015 (has links)
The original Yukpa are an indigenous community who have inhabited the lands of the
Sierra de Perij a (mountain range of Perij a) in Venezuela since prehistoric times. The
sovereignty of the Yukpa on their ancestral territories was protected from non-indigenous
people until the arrival of Spanish Capuchin missionaries during the seventeenth century.
The presence of the Capuchin missionaries furthered the entrance of non-indigenous
people, who explored the area and discovered the fertility of the soil and a rich variety
of natural resources. In the 1930s, ranch owners started the progressive occupation of
Yukpas' ancestral lands, taking advantage of the Venezuelan government's indi erence to
indigenous communities. The Yukpa started to resist the ranch owners. In retaliation,
ranch owners responded with violence to intimidate and expel the Yukpa from what
they claimed to be their property. The Yukpa have also been harassed by insurgent
Colombian groups and drug dealers, who nd the Sierra de Perij a an ideal place to
cultivate marijuana and opium poppy
owers. To avoid the violence in the Sierra de
Perij a, a signi cant number of Yukpa moved during the eighties to the city of Maracaibo
in northwestern Venezuela. These displaced Yukpa have settled in lots located in the
vicinities of the Hospital General del Sur, in Maracaibo, where they continue to live.
For many indigenous communities, land and culture are interdependent. Land
represents for many indigenous people their origin and continuity. Some authors claim
that the forced displacement to areas distinct from their place of origin may disrupt
the continuity of traditions which are the essence of their culture (Maybury-Lewis
2001:31; UNESCO 2009:207). This study examines ethnographically the Yukpa settled
in Maracaibo in order to identify the extent to which the involuntary displacement
from their ancestral territories has a ected their autochthonous land-based culture.
Furthermore, this study provides a biographic pro le of the Yukpa settled in
Maracaibo along with a discussion of their current needs, and some recommendations
for further studies / Anthropology and Archaeology / M.A. (Anthropology)
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Analyse des effets des déplacements atomiques induits par l’environnement radiatif spatial sur la conception des imageurs CMOS / Analysis of displacement damage effects on CMOS image sensor designVirmontois, Cédric 23 March 2012 (has links)
L' imagerie spatiale est aujourd'hui un outil indispensable au développement durable, à la recherche et aux innovations scientifiques ainsi qu’à la sécurité et la défense. Fort de ses excellentes performances électro-optiques, de son fort taux d’intégration et de la faible puissance nécessaire à son fonctionnement, le capteur d’images CMOS apparait comme un candidat sérieux pour ce type d’application. Cependant, cette technologie d’imageur doit être capable de résister à l’environnement radiatif spatial hostile pouvant dégrader les performances des composants électroniques. Un nombre important d’études précédentes sont consacrées à l’impact des effets ionisants sur les imageurs CMOS, montrant leur robustesse et des voies de durcissement face à de telles radiations. Les conclusions de ces travaux soulignent l’importance d’étudier les effets non-ionisants, devenant prépondérant dans les imageurs utilisant les dernières évolutions de la technologie CMOS. Par conséquent, l’objectif de ces travaux de thèse est d’étudier l’impact des effets non-ionisants sur les imageurs CMOS. Ces effets, regroupés sous le nom de déplacements atomiques, sont étudiés sur un nombre important de capteurs d’images CMOS et de structures de test. Ces dispositifs sont conçus avec des procédés de fabrication CMOS différents et en utilisant des variations de règle de dessin afin d’investiguer des tendances de dégradation commune à la technologie d’imager CMOS. Dans ces travaux, une équivalence entre les irradiations aux protons et aux neutrons est mise en évidence grâce à des caractéristiques courant-tension et des mesures de spectroscopie transitoire de niveau profond. Ces résultats soulignent la pertinence des irradiations aux neutrons pour étudier les effets non-ionisants. L’augmentation et la déformation de l’histogramme de courant d’obscurité ainsi que le signal télégraphique aléatoire associé, qui devient le facteur limitant des futures applications d’imagerie spatiale, sont évalué et modélisés. Des paramètres génériques d’évaluation des effets des déplacements atomiques sont mis en évidence, permettant de prévoir le comportement des capteurs d’images CMOS en environnement radiatif spatial. Enfin, des méthodes d’atténuation et des voies de durcissement des imageurs CMOS limitant l’impact des déplacements atomiques sont proposées. / Today, space imaging is an essential tool for sustainable development, research and scientific innovation as well as security and defense. Thanks to their good electro-optic performances and low power consumption, CMOS image sensors are serious candidates to equip future space instruments. However, it is important to know and understand the behavior of this imager technology when it faces the space radiation environment which could damage devices performances. Many previous studies have been focused on ionizing effects in CMOS imagers, showing their hardness and several hardening-by-design techniques against such radiations. The conclusions of these works emphasized the need to study non-ionizing effects which have become a major issue in the last generation of CMOS image sensors. Therefore, this research work focuses on non-ionizing effects in CMOS image sensors. These effects, also called displacement damage, are investigated on a large number of CMOS imagers and test structures. These devices are designed using several CMOS processes and using design rule changes in order to observe possible common behaviors in CMOS technology. Similarities have been shown between proton and neutron irradiations using current-voltage characteristics and deep level transient spectroscopy. These results emphasize the relevance of neutron irradiations for an accurate study of the non-ionizing effects. Then, displacement damage induced dark current increase as well as the associated random telegraph signal are measured and modeled. Common evaluation parameters to investigate displacement damage are found, allowing imager behavior prediction in space radiation environment. Finally, specific methods and hardening-by-design techniques to mitigate displacement damage are proposed.
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Compréhension des mécanismes physiques à l'origine des dégradations électriques extrêmes des pixels dans les capteurs d'images irradiés / Understanding of physical mechanism causing extreme electrical degradation in pixels of irradiated imagerUrsule, Marie-Cécile 26 September 2017 (has links)
Les capteurs d'images sont utilisés dans diverses applications spatiales : observation spatiale, calcul d'attitude etc. Ces capteurs évoluent dans l’environnement spatial dont les rayonnements entraînent une dégradation de leurs performances. Parmi les paramètres impactés, nous nous intéressons au courant d'obscurité des pixels. Ce courant parasite correspond à la génération de porteurs de charges sans lumière par simple excitation thermique, induisant l'augmentation du bruit de fond des images. Les pixels fortement dégradés sont particulièrement pénalisants pour les missions spatiales. Cet effet pousse donc la communauté spatiale à développer des méthodes de prédiction performantes. L'ONERA a développé une méthode originale de prédiction des courants d'obscurité basée sur la méthode de Monte Carlo et la librairie GEANT4. L’objectif de la thèse est d’améliorer la prédiction de l’outil. Dans un premier temps, nous avons modifié l'outil numérique pour des cas extrêmes de modélisations pour lesquels les modélisations Monte Carlo sont trop longues. Pour cela, nous avons développé des méthodes utilisant des simplifications statistiques. Dans un second temps, nous avons étudié l’influence de la géométrie du pixel sur le courant d'obscurité. L’idée est de suivre les cascades de dégradations générées par les particules spatiales et de déterminer si ces cascades restent confinées au sein du pixel impacté ou si elles se propagent dans les pixels voisins. Enfin, nous avons élaboré dans notre outil un modèle simulant les mécanismes liés au champ électrique potentiellement responsables des dégradations les plus élevées, les effets Poole-Frenkel et tunnel assisté par phonons. / Image sensors are used in various space applications: space and earth observations, attitude calculation etc. Those sensors are very sensitive to the space environment whose radiations lead to a degradation of their performances. Among the different impacted parameters, we are interested in the increase of dark current in the pixels. This parasitic current is caused by the thermal generation of charge carriers without any light excitation inducing the increase of the background noise on the images. Some pixels exhibiting the highest degradation are particularly disadvantageous for space missions. They can be critical for some missions and impose to the space community to develop effective prediction methods. ONERA developed an original method to predict dark current induce by the space radiations, based on a Monte Carlo method and the GEANT4 library. The objective of the PhD is to improve the performances of the tool. The approach of this work is first to modify the numerical tool for extreme cases of modelling (i.e. high fluencies or huge pixel volume) for which the Monte Carlo simulations are too long. In order to reduce this computation time, we developed calculation methods using statistical simplifications. In a second part, we studied the influence of the pixel geometry on the dark current. The idea is to follow the degradation cascades created by space particles and to determine if those cascades are contained in the impacted pixel or if they reach neighbor pixels. Finally, we modelled in our tool the physical mechanisms potentially responsible of the highest degradations linked to the electric field, the Poole-Frenkel effect and the phonon assisted tunneling.
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Poseidonia-Paestum revisited : Tracing aspects of place attachment in an ancient contextByström, Emelie January 2017 (has links)
The city of Poseidonia-Paestum on the Italian peninsula has a long and manifold history throughout Antiquity. The city was founded by Greek settlers in the seventh century BC, put under Lucanian rule around 400 BC, and was finally colonized by the Romans in the year of 273 BC. This study aims to connect the tangible traces of history to the intangible feelings for a place and explore how these elements give rise to the psychological process of place attachment. The concept holds and interdisciplinary potential and thus is possible to apply to the ancient material from Poseidonia-Paestum. The Greek agora, the Roman forum and the extramural Sanctuary of Santa Venera is approached and analysed from this perspective. A close reading of previous research on place attachment in combination with the archaeological record from Poseidonia-Paestum has formed the basis for analysing the material. This study has shown that it is possible to contextualize the theoretical framework of place attachment in an ancient material by pointing out the semiotic potency of the material remains from Poseidonia-Paestum. Through this perspective new questions have been raised and interpreted. Ultimately, a deeper understanding of the attitudes and ideas that formed the basis of human actions and decisions in the ancient city of Poseidonia-Paestum has been reached.
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Análise dos esforços em um novo implante para osteotomia da tíbia através do método dps elementos finitosRodrigues, Henry Marcondes Guimarães January 2015 (has links)
Orientadora: Prof.ª Dr.ª Léia Bernardi Bagesteiro / Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Engenharia Biomédica, 2015. / A osteotomia proximal da tibia (OPT) com cunha medial aberta e uma intervencao cirurgica utilizada para o tratamento de osteoartrite no condilo medial. Basicamente consiste na realizacao de um corte parcial da tibia e na abertura em formato de cunha em um angulo pre-determinado. Apos a abertura e necessaria a fixacao de um implante ortopedico.
Os dispositivos ortopedicos utilizados para estabilizar a fratura devem suportar as cargas biomecanicas e gerar um ambiente mecanico capaz de permitir a consolidacao ossea.
O objetivo deste estudo e analisar as tensoes de um novo implante (NPO) para osteotomia, previamente projetado pelo autor e colaboradores, bem como os deslocamentos relativos da cunha apos a aplicacao de cargas estaticas, atraves do metodo dos elementos finitos.
Baseados em imagens medicas geradas a partir de tomografias computadorizadas, tres modelos distintos de elementos finitos da tibia com abertura em cunha foram simulados e fixados com: (1) uma nova placa para osteotomia (NPO), (2) uma placa gTh reta (PTR) e (3) uma placa gTh curva (PTC). Em cada avaliacao foram consideradas duas condicoes de carga em pos-operatorio: (1) primeira semana e (2) sexta semana.
A tensao maxima observada na NPO (362,62 MPa) foi 57,08% maior que a PTR (230,85 MPa) e 23,47% (293,70 MPa) maior que a PTC. O deslocamento da configuracao NPO (1,37 mm) foi similar a tibia intacta e a PTC e a PTR, que apresentaram deslocamentos do tecido osseo de 1,35 mm e 1,30 mm, respectivamente.
Para o caso da primeira semana do pos-operatorio a NPO apresentou movimento relativo interfragmentar (MRI) axial minimo e maximo de 169,58 ¿Êm e 218,14 ¿Êm, respectivamente. E MRI cisalhante minimo e maximo de 1,21 ¿Êm e 0,96 ¿Êm, respectivamente. Estes valores foram inferiores e superiores a 0,2 mm. Segundo PLECKO et al. (2013) valores acima de 0,2 mm aumentam a proliferacao de calo ossificado. No caso da sexta semana o MRI axial minimo da cunha foi de 165,20 ¿Êm e o maximo de 284,01 ¿Êm. Enquanto que o MRI cisalhante minimo foi de 47,52 ¿Êm e o maximo de 50,82 ¿Êm. A PTR apresentou valores de MRI axial entre 153,39 ¿Êm e 233,68 ¿Êm na primeira semana e 136,92 ¿Êm e 314,47 ¿Êm na sexta semana. E MRI de cisalhamento entre 1,12 ¿Êm e 1,95 ¿Êm na primeira semana e 87,49 ¿Êm e 92,89 ¿Êm na sexta semana. A PTC apresentou valores de MRI axial entre 158,92 ¿Êm e 233,70 ¿Êm (primeira semana) e 154,33 ¿Êm e 310,31 ¿Êm (sexta semana). E MRI cisalhante entre 0,94 ¿Êm e 1,66 ¿Êm (primeira semana) e 77,67 ¿Êm e 78,40 ¿Êm (sexta semana).
Portanto, a analise valida a utilizacao do novo implante para osteotomia proximal da tibia e sugere a reducao de material nas regioes de baixa tensao equivalente de von Mises. Todos os implantes apresentaram valores de tensoes menores que o limite de escoamento da liga de titanio (Ti-6Al-4V) e permitiram o deslocamento da tibia com osteotomia proximo ao deslocamento da tibia intacta. A cunha apresentou regioes de micromovimento e microdeformacao que permitem a cicatrizacao ossea em ambas condicoes de carga. / IOpen wedge high tibial osteomy is a surgical intervention used to treat medial compartment osteoarthritis. The technique consists of tibial partial cut and an opening wedge with a pre-defined angle. Once opened, the orthopedic implant¿s fixation is required.
The orthopedic devices used to stabilize the fracture should support the biomechanical loads and create an optimal mechanical environment to allow the fracture healing.
The aim of this study is to analyze the stress level and displacements for the new implant of the osteotomy wedge under static loads using the finite element method.
Using CT-based images, three tibia¿s distinct finite element models with open wedge were simulated and fixed: (1) the new implant osteotomy, (2) a straight T plate (STP) and (3) a curved T plate (CTP). On each evaluation two load conditions were considered: (1) the first week post-operative and (2) the sixth week post-operative.
The maximum stress observed for the new implant (362.62MPa) was 57.08% higher than STP (230.85MPa) and 23.47% higher than CTP (293.70MPa). The highest displacement of the bone tissue was showed by the new implant (1.37mm), follow by STP (1.35mm) and CTP (1.30mm).
For the first week condition, the wedge with the new implant showed minimum and maximum axial interfragmentary relative micromotion (IRM) of 169.58ìm and 218.14ìm. And shear IRM minimum and maximum of 1.21ìm e 0.96ìm, respectively. These values were inferior and superior to 0.2 mm. According to PLECKO et al. (2013), values larger than 0.2 mm increases the proliferation of callus ossified. For the sixth week, the minimum and maximum axial IRM were 165.20ìm and 284.01ìm. And shear IRM minimum and maximum of 47.52ìm and 50.82ìm, respectively. The STP showed IRM between 153.39ìm and 233.68ìm in the first week, and 136.92ìm and 314.47ìm for the sixth week. And shear IRM between 1.12ìm e 1.95ìm in the first week and 87.49ìm and 92.89ìm in the sixth week. The CTP showed IRM between 158.92ìm and 233.70ìm (first week), and 154.33ìm and 310.31ìm (sixth week). And shear IRM between 0.94ìm e 1.66ìm (first week) and 77.67ìm and 78.40ìm in the sixth week.
Therefore, the analysis validates the use of the new implant for proximal tibial osteotomy and suggests the material's reduce in the regions with lower von Mises equivalent stress. All implants showed stress levels lower than the yield strength of the titanium alloy (Ti-6Al-4V) and the displacement of the fractured tibia was similar to the intact tibia. The wedge showed regions of micromotion (mm) and strain (%) that allowed the fracture healing in both loads conditions.
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Análise numérica de lajes treliçadas pré-moldadas com adição de resíduo de borrachaSantos, Marcos Rebuá dos [UNESP] 13 April 2009 (has links) (PDF)
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santos_mr_me_ilha.pdf: 6170851 bytes, checksum: 7e371acd2e98e6056215eb6fcf122052 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Neste trabalho, resultados experimentais relacionados a flechas imediatas de protótipos de lajes pré-moldadas treliçadas biapoiadas, com concreto com e sem resíduo de borracha de pneu, são comparados com resultados numéricos obtidos com base nas recomendações da NBR 6118 (ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS - ABNT, 2003) e do CEB-90 (COMITÊ EURO-INTERNACIONAL DU BÉTON - CEB, 1993). Foram feitas as seguintes análises. Na primeira, aplicaram-se as recomendações dos códigos ao elemento estrutural como um todo visando avaliar a sua rigidez; em seguida, com a expressão procedente da resistência dos materiais, foi calculada a flecha imediata. Estas modelagens numéricas estão referenciadas no texto como Branson, que representa a modelagem adotada pela NBR 6118:2003, e CEB-90. Na segunda, com o auxílio do sistema computacional ANSYS®, as expressões para o cálculo da rigidez segundo os códigos foram aplicadas aos elementos finitos que compunham os protótipos e não mais aos protótipos como um todo. Levou-se em consideração o carregamento incremental e este tipo de análise não linear gerou os resultados referenciados no texto como Branson discretizado e CEB-90 discretizado. Em uma terceira análise, com o auxílio do ANSYS®, utilizando-se o modo de carregamento incremental, aplicou-se, para cada elemento finito, a expressão do momento de inércia relativa aos estádios I ou II, dependendo do máximo momento fletor atuante no elemento e do momento de fissuração do protótipo. Os resultados obtidos foram referenciados no texto como Ansys - Estádios I e II. Para as análises mencionadas, foram utilizados os momentos de fissuração calculados, bem como os momentos de fissuração observados experimentalmente. Também foi analisado o comportamento da linha neutra. Considerando-se o Estado Limite de Serviço, os métodos de Branson, do CEB-90, do CEB-90... / In this work, experimental results related the immediate displacements of bi-supported lattice joist precast slab prototypes, with and without tire rubber residue in the concrete, are compared with numerical results obtained by the expressions of Branson, which is used by the brazilian standard NBR 6118 (ABNT, 2003), and by the method of CEB-90 (1993). The following analyses were made. In the first analysis, the expressions of the codes were applied for the whole structural element, obtaining its stiffness; so, with the use of the expression from the strength of materials, the immediate displacement was determined, called in this work of Branson and CEB-90. In the second analysis, with the help of the computational system ANSYS ®, the expressions for the calculation of the stiffness according to the codes were applied to the finite elements that were composing the prototypes and not more to the prototypes as a whole. The load was applied in an incremental mode, and this type of non-linear analysis produced the results called in the text of Branson discretized and CEB-90 discretized. In the third analysis, with the help of the ANSYS®, and using the incremental load, for each finite element, the expressions of the stiffness associated to the states I and II, that depends on the cracking moment and the maximum bending moment that acts in each finite element, were applied. These results were called in the text of Ansys States I and II. For the mentioned analyses, both the calculated and the experimentally observed cracking moment values were used. Also there was analysed the behavior of the neuter line. Considering the Service Limit State, the methods of Branson, of the CEB-90, the CEB-90 discretized and of Ansys States I and II presented satisfactory results, on behalf of the security, since the calculated cracking moment is used. But when the experimentally cracking moment is used... (Complete abstract click electronic access below)
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Characterization of Landslide Geometry and Movement Near Black Canyon City, ArizonaJanuary 2016 (has links)
abstract: I investigate the Black Canyon City landslide (BCC landslide), a prominent deep-seated landslide located northeast of Black Canyon City, Arizona. Although the landslide does not appear to pose a significant hazard to structures, its prominent features and high topographic relief make it an excellent site to study the geologic setting under which such features develop. This study has the potential to contribute toward understanding the landscape evolution in similar geologic and topographic settings, and for characterizing the underlying structural processes of this deep-seated feature. We use field and remotely-based surface geology and geomorphological mapping to characterize the landslide geometry and its surface displacement. We use the Structure from Motion (SfM) method to generate a 0.2 m resolution digital elevation model and rectified ortho-photo imagery from unmanned aerial vehicle (UAV) - and balloon-based images and used them as the base map for our mapping. The ~0.6 km2 landslide is easily identified through remotely-sensed imagery and in the field because of the prominent east-west trending fractures defining its upper extensional portion. The landslide displaces a series of Early and Middle Miocene volcanic and sedimentary rocks. The main head scarp is ~600 m long and oriented E-W with some NW-SE oriented minor scarps. Numerous fractures varying from millimeters to meters in opening were identified throughout the landslide body (mostly with longitudinal orientation). The occurrence of a distinctive layer of dark reddish basalt presents a key displaced marker to estimate the long-term deformation of the slide mass. Using this marker, the total vertical displacement is estimated to be ~70 m, with maximum movement of ~95 m to the SE. This study indicates that the landslide motion is translational with a slight rotational character. We estimate the rate of the slide motion by resurvey of monuments on and off the slide, and examination of disturbed vegetation located along the fractures. The analysis indicates a slow integrated average landslide velocity of 10-60 mm/yr. The slide motion is probably driven during annual wet periods when increased saturation of the slide mass weakens the basal slip surface and the overall mass of the slide is increased. Results from our study suggest that the slide is stable and does not pose significant hazard for the surrounding area given no extreme changes in the environmental condition. Although the landslide is categorized as very slow (according to Cruden and Varnes, 1996), monitoring the landslide is still necessary. / Dissertation/Thesis / Masters Thesis Geological Sciences 2016
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Kurdish Guests or Syrian Refugees? : Negotiating Displacement, Identity and Belonging in the Kurdistan RegionBahram, Haqqi January 2018 (has links)
With the conflict ongoing in Syria since 2011, many Syrian Kurds have been forced to leave their homes to seek safety and security in the Kurdistan Region of Iraq (KRI). Their displacement to KRI is a distinctive experience of migration as it has happened within an intra-ethnic setting of Syrian Kurds, as refugees, encountering Iraqi Kurds, as hosts. Sharing ethnic identification and imagination of a historical homeland but holding different nationalities, has turned identity and belonging into sites of contestation between the refugees and the hosts. Within this intra-ethnic setting of displacement, the study has investigated the construction of home and politics of identity and belonging among the refugees in relation to protection regimes and forms of inclusion and exclusion. This has been done through a content analysis of relevant policy and regulations for refugees in KRI and Iraq and a thematic analysis of individual narrative interviews with the refugees themselves. Research results from the policy analysis have indicated the lack of a comprehensive protection regime in Iraq and KRI, and the deployment of the ‘guests’ rhetoric towards the refugees as a responsibility evasion mechanism. Results from the interviews have revealed that home for the participants is plural, and it connects to Syria and Kurdistan to varying degrees. Their identity as Kurds is contested when their Syrianness is evoked with boundaries limiting their recognition to be both Syrian and Kurdish. Similarly, their belonging is challenged with their social position as refugees and their legal belonging to Syria. With this, they get involved into a continuum of politics of identity and belonging ranging between the situational demonstration of their Syrian identity and the role of ‘the successful Syrian refugee’, and the accentuation of their attachment to Kurdishness through belonging to Rojava. These politics have been discussed as reflecting a process of reconstructing Syrian Kurdish identity in the light of the experience of displacement and the intra-ethnic encounter. Contextualizing the research results in a wider perspective, it is argued that they carry further implications related to the Kurdish struggle with identity and belonging, not only in KRI, but in all the other parts of Kurdistan.
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