1,362 results on '"emplacement"'
Search Results
152. Staying out of Place: The Being and Becoming of Burundian Refugees in the Camp and the City.
- Author
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Turner, Simon
- Subjects
REFUGEES ,ETHNOGRAPHIC analysis ,REFUGEE camps - Abstract
Based on ethnographic fieldwork among Burundian refugees living clandestinely in Nairobi and living in a refugee camp in Tanzania, the article argues that displacement can be about staying out of place in order to find a place in the world in the future. I suggest that the term dia-placement describes this sense of not only being out of place but also being en route to a future. Burundians in the camp and the city are doing their best to remain out of place, in transition between a lost past and a future yet to come, and the temporary nature of their sojourn is maintained in everyday practices. Such everyday practices are policed by powerful actors in the camp and are ingrained in practices of self-discipline in Nairobi. Comparing the two settings demonstrates that remaining out of place can take on different forms, according to context. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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153. ‘Homing’ Guangzhou: Emplacement, belonging and precarity among Africans in China.
- Author
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Castillo, Roberto
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PRECARITY , *WELFARE economics , *ECONOMIC security - Abstract
Over the last decade, countless Africans have been moving between China and Africa. While Africans in Guangzhou have been generally portrayed as a wave of ‘immigrant traders’, they arrive in China for myriad reasons, occupy multiple (usually transient) emplacements, and engage in diverse activities. By following the stories and insights of two Nigerian community leaders, this article explores the place-making processes through which individuals and collectives negotiate their everyday lives in Guangzhou under conditions of uncertainty. Throughout the article, I suggest that despite different trajectories and emplacements, precarity is a common thread running through most accounts of Africans in the city. While sometimes paralysing, I argue that this precarity functions as a trigger encouraging individuals to develop structures of solidarity and networks of support (i.e. sporting clubs and community offices), which are crucial sites for individual and collective attempts to ‘feel at home’ while on the move in China. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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154. Encountering The Night with Mobile Methods.
- Author
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Wolifson, Peta
- Subjects
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NIGHTLIFE , *PUBLIC spaces , *URBAN planning , *NARRATIVES , *GEOGRAPHICAL research - Abstract
Nightlife settings both facilitate urban sociality and act as sites of social conflict, however little research has focused on experience and encounter in these places. This paper addresses this gap in the context of night-time economic planning and recent research on encounter. The use of mobile methods in nightlife spaces is shown to garner a more nuanced understanding of how forays into planned night-time spaces are experienced and understood by people using those spaces. I argue that emplaced, mobile methods unveil complex narratives of place, revealing prejudices and discourses at play in place. These narratives begin to erode privileged images of the city shaped by increasingly neoliberal governance and other cultural intermediaries, and draw out the potential of these methods to improve the lived inclusivity of place. [ABSTRACT FROM AUTHOR]
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- 2016
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155. Mobility and emplacement in north coast Papua New Guinea: Worlding the Pacific Marine Industrial Zone.
- Author
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Stead, Victoria
- Subjects
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SOCIAL mobility , *SOCIAL status , *SOCIAL stratification , *GLOBALIZATION & society , *ECONOMIC zones (Law of the sea) - Abstract
On the north coast of Papua New Guinea, the construction of the Pacific Marine Industrial Zone is catalysing movements of people, capital and things, as well as of the ideas and imaginings which accompany and make them meaningful. Drawn from literary and postcolonial studies, the concept of worlding offers a narrative framework through which to think through these movements and the ways in which they complicate prevailing narratives of globalisation. At the Pacific Marine Industrial Zone, the neoliberal worldings that inform the project do not simply catalyse movements, but also act to impose barriers to movement. Local communities assert connection to place, but also generate new circuits of mobility, and rearticulate ideas of kastom (custom) that have movement at their core. An emphasis on worlding—drawing particularly on Heidegger's distinction between world and earth—allows for a more complex reflection on the relationship between mobility and emplacement, one that more fully illuminates the complexity of the relationship itself, and the way it is experienced at the PMIZ site. [ABSTRACT FROM AUTHOR]
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- 2016
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156. Placing Displacement: Place-making in a World of Movement.
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Lems, Annika
- Subjects
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ANTHROPOLOGICAL research , *DISPLACEMENT (Psychology) , *STORYTELLING , *MOVEMENT (Philosophy) , *SOMALI refugees - Abstract
Over the last two decades, there has been a radical shift in anthropology from stable, rooted and mappable identities to fluid, transitory and migratory forms of belonging. Displacement has become the new trope through which anthropologists have come to look at the world. As a result, place has received an ambiguous position. Focusing on the life experiences of one Somali refugee woman living in Melbourne and her engagement with place, this article questions the current emphasis on space and boundlessness in anthropological discourses on displacement. It argues that rather than developing theoretical concepts that bypass people's experiences, the zooming in on individuals' lifeworlds allows for a close look at the particularity and everydayness of being-in-place. It shows the need for a more complex and nuanced view of displacement – one that values people's lived experiences and one that takes the placement in displacement more seriously. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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157. Emplacement and the politics of heritage in low-income neighbourhoods of Marseille.
- Author
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Ingram, Mark
- Subjects
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CULTURAL property , *LOW-income countries , *GOVERNMENT policy , *SOCIAL conflict , *ETHNOGRAPHIC analysis - Abstract
Recent scholarship addressing efforts to celebrate heritage in low-income neighbourhoods and housing estates has stressed the importance of attending to the continuity of place-based social relationships as a key factor in residents’ understandings of heritage, and, drawing on Smith’s conception of an ‘authorised heritage discourse’, the ways these understandings differ from hegemonic and generalised expert discourse emphasising the deficiencies of the material environment. In this article, I examine a new object of state intervention in France, ‘the heritage of popular neighbourhoods’, and describe points of convergence and conflict between local heritage work in Marseille and the recent discursive framework established to employ heritage as a tool in reorganising French state policy towards urban peripheral neighbourhoods (the politique de la ville). Drawing on ethnographic research (2007–2014), this article identifies emplacement as a key feature in residents’ performances of neighbourhood heritage, a feature often absent or poorly elaborated in heritage work promoted by French urbanist policy in the past. I describe the ways emplacement has been expressed aesthetically in arts projects, trace the range of social networks and relationships enacted, and describe the political implications of these performances as a tool for promoting solidarity across time and space in Marseille. [ABSTRACT FROM PUBLISHER]
- Published
- 2016
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158. Paleoproterozoic structural frame of the Yetti domain (Eglab shield, Algeria): Emplacement conditions of the Tinguicht late pluton from magnetic fabric study.
- Author
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Merabet, Nacer-eddine, Mahdjoub, Yamina, Henry, Bernard, Abtout, Abdeslam, Maouche, Said, Kahoui, Mohamed, Lamali, Atmane, and Ayache, Mohamed
- Subjects
- *
PROTEROZOIC Era , *STRUCTURAL frames , *SHIELDS (Geology) , *EMPLACEMENT (Geology) , *IGNEOUS intrusions , *MAGMATISM - Abstract
The Tinguicht pluton is part of the ∼2.07 Ga post-collisional magmatic suites that intruded the Yetti Paleoproterozoic volcano-sedimentary series of the western part of the Eglab Shield (West African Craton). It represents one of the most recent units of these suites. This pluton, with a NW–SE elliptic shape, is unfoliated, and its deformational structures are practically restricted to fracturing and faulting. New structural, microstructural and aeromagnetic data are presented in order to analyze in particular the relationship between the Tinguicht pluton emplacement and the related NNW-SSE major mega-shear zone, separating the Yetti and Eglab domains. To constrain the context of the regional post-collisional evolution of the Eglab shield, a structural analysis was performed by mapping the magnetic structures (foliation and lineation) using AMS. The combination of the results of all the used approaches leads to a new and enriched image of this granitic pluton and of its tectonic emplacement context. The elliptic shape of the granitic body and the AMS strain pattern are consistent with the presence of a NNW-SSE major structure. NNW-SSE is also one of the major directions highlighted by the aeromagnetic data. This study thus evidences the role of the pre-existing major shear zones in controlling emplacement of post-collisional Paleoproterozoic plutons like Tinguicht, as shown for Drissa pluton in the Eglab domain earlier. [ABSTRACT FROM AUTHOR]
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- 2016
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159. Sensory narratives: capturing embodiment in narratives of movement, sport, leisure and health.
- Author
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lisahunter and emerald, elke
- Subjects
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PHYSICAL education research , *NARRATIVE inquiry (Research method) , *PLAY , *LEISURE research , *SPORTS research , *PHYSICAL activity - Abstract
Narrative research has been employed by many researchers in the field of physical culture (including movement, play, dance, sport, leisure, physical pursuits, physical activity, physical education and health). From our storied worlds, narrative research reveals complex embodied and emplaced social phenomena within this field. However, there are still many questions about how we might begin to take more seriously the lived body, the phenomenological and subjective experiences of those people whose practices constitute this field. From a methodological and epistemological perspective, we face ongoing challenges in understanding physical culture and its constitution in storied and embodied ways. This paper explores the possibilities for narrative research to be extended using a framework of intersections between three research moments (field texts, interim research texts and research texts) and four epistemes (senses, sensual experience, sensory geographies and sensational learning/turning points). We exploresensory narrativesas forms that capture embodiment in rich ways, providing multimodal possibilities, new timespace possibilities and new insights. This paper is an attempt to move beyond telling stories of ushavingbodies to address usasbodies [Ellsworth, E. (2005).Places of learning: Media, architecture, pedagogy. New York: RoutledgeFalmer], emplaced, and whose movement and sensations are crucial to learning, knowing and understanding. We grapple with two core conundrums for researchers who use narrative: how to capture, analyse and represent storied worlds in embodied waysandhow to capture sensed and embodied experiences in narrative. Finally, we discuss implications for (re)telling enduringandnew narratives using emerging sense-focussed epistemologies and methodologies to communicate narrative at the three research moments. [ABSTRACT FROM PUBLISHER]
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- 2016
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160. Displacement, emplacement and migrant newcomers: rethinking urban sociabilities within multiscalar power.
- Author
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Glick Schiller, Nina and Çağlar, Ayse
- Subjects
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URBAN research , *HUMAN settlements , *IMMIGRANTS , *ACCULTURATION , *NONCITIZENS - Abstract
This article contributes to the discussion of the everyday sociabilities that arise between migrant newcomers and local urban residents. We highlight the proximal, workplace and institutionally based social relations that newcomers and locals construct through finding domains of commonality, noting that in such instances differences are not constituting factors for the development of urban sociabilities. The urban sociabilities we describe emerge within the contingencies of a disempowered city in which all residents face limited institutional support and social or economic opportunities. Concepts of multiscalar displacements and emplacements are highlighted as useful for setting aside a communitarian bias in urban and migration studies and analysing urban sociabilities in ways that situate migrants within discussions of urban social movements. [ABSTRACT FROM PUBLISHER]
- Published
- 2016
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161. Unravelling textural heterogeneity in obsidian: Shear-induced outgassing in the Rocche Rosse flow.
- Author
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Shields, J.K., Mader, H.M., Caricchi, L., Tuffen, H., Mueller, S., Pistone, M., and Baumgartner, L.
- Subjects
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ECOLOGICAL heterogeneity , *OUTGASSING , *VOLCANISM , *PHYSIOGRAPHIC provinces , *VISCOUS flow , *RAINFALL , *VOLCANIC ash, tuff, etc. - Abstract
Obsidian flow emplacement is a complex and understudied aspect of silicic volcanism. Of particular importance is the question of how highly viscous magma can lose sufficient gas in order to erupt effusively as a lava flow. Using an array of methods we study the extreme textural heterogeneity of the Rocche Rosse obsidian flow in Lipari, a 2 km long, 100 m thick, ~ 800 year old lava flow, with respect to outgassing and emplacement mechanisms. 2D and 3D vesicle analyses and density measurements are used to classify the lava into four textural types: ‘glassy’ obsidian (< 15% vesicles), ‘pumiceous’ lava (> 40% vesicles), high aspect ratio, ‘shear banded’ lava (20–40% vesicles) and low aspect ratio, ‘frothy’ obsidian with 30–60% vesicles. Textural heterogeneity is observed on all scales (m to μm) and occurs as the result of strongly localised strain. Magnetic fabric, described by oblate and prolate susceptibility ellipsoids, records high and variable degrees of shearing throughout the flow. Total water contents are derived using both thermogravimetry and infrared spectroscopy to quantify primary (magmatic) and secondary (meteoric) water. Glass water contents are between 0.08–0.25 wt.%. Water analysis also reveals an increase in water content from glassy obsidian bands towards ‘frothy’ bands of 0.06–0.08 wt.%, reflecting preferential vesiculation of higher water bands and an extreme sensitivity of obsidian degassing to water content. We present an outgassing model that reconciles textural, volatile and magnetic data to indicate that obsidian is generated from multiple shear-induced outgassing cycles, whereby vesicular magma outgasses and densifies through bubble collapse and fracture healing to form obsidian, which then re-vesiculates to produce ‘dry’ vesicular magma. Repetition of this cycle throughout magma ascent results in the low water contents of the Rocche Rosse lavas and the final stage in the degassing cycle determines final lava porosity. Heterogeneities in lava rheology (vesicularity, water content, microlite content, viscosity) play a vital role in the structural evolution of an obsidian flow and overprint flow-scale morphology. Post-emplacement hydration also depends heavily on local strain, whereby connectivity of vesicles as a result of shear deformation governs sample rehydration by meteoric water, a process previously correlated to lava vesicularity alone. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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162. A trip through Oceanic Lithosphere: 2019 international workshop and field trip of IGCP 649 in Muscat, Oman
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Niu, Xiaolu, Yang, Jingsui, Nasir, Sobhi, Koepke, Juergen, Niu, Xiaolu, Yang, Jingsui, Nasir, Sobhi, and Koepke, Juergen
- Abstract
IGCP-649 project "Diamonds and Recycled Mantle " (2015-2019) is aimed to carry out extensive and systematic research on the peridotites, chromitites, and related high pressure and reduced minerals such as diamond, moissanite and other unusual minerals, from different ophiolites and orogenic belts in the world, in order to understand the formation and origin of deep-mantle minerals in oceanic lithosphere, the origin of carbon for the ophiolite-hosted diamonds, the evolution of Earth's mantle and the dynamic process of ophiolite emplacement and also to provide new model for chromitite formation and exploration. Since 2015, the IGCP-649 workshops and field excursions have been held at the world well-known classic ophiolites and chromitites exposed areas, such as the North Qilian ophiolite in China (Yang et al., 2015a), the Troodos ophiolite in Cyprus (Yang et al., 2016), the Mayari-Baracoa ophiolites and chromitites in Cuba (Yang et al., 2017), the Massif du Sud ophiolite in New Caledonia (Yang and Shen, 2018), and the Semail ophiolite in Oman this year (2019). In addition to holding workshops and field excursions, the IGCP-649 project has also organized many scientific sessions on ophiolites and chromitites in world well-known international conferences, e.g., Goldschmidt Conference (2015, 2017, 2019), Annual Meeting of Geological Society of America (2015, 2017), the International Geological Congress (2016, 2020 now postponed), and published several special issues of the journals, such as Gondwana Research (2015), Lithosphere (2018), Earth Sciences (2019), as well as abstract volumes (2015, 2016, 2017, 2018, 2020) in the journal Acta Geologica Sinica. All these scientific activities and publications provided an excellent opportunity for international geologists and earth science communications to gather and exchange their new achievements and perspectives.
- Published
- 2021
163. Pandemic Pedagogy: Assessing the Online Implementation of a Decolonial Curriculum
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Morreira, Shannon and Morreira, Shannon
- Abstract
[EN] The student protests in South Africa (2015–2017) triggered shifts in pedagogical practices, such that by 2020 many South African higher education institutions had begun to make some concrete moves towards more socially just pedagogies within teaching and learning (Quinn, 2019; Jansen, 2019). In March 2020, however, South Africa went into lockdown as a result of Covid-19, and all higher education teaching became remote and non-synchronous. This paper reports on the effects of the move to remote teaching on the implementation of a new decolonial ‘emplaced’ pedagogy at one South African university. The idea of emplacement draws on the careful incorporation of social space as a teaching tool within the social sciences, such that students can situate themselves as reflexive, embodied persons within concrete spaces and communities which carry particular social, economic and political histories. This paper draws on data from course evaluations and student assignments, as well as a description of course design, to argue that many of the benefits of careful emplacement in historical and contemporary context can happen even where students are never in the same physical spaces as one another or their lecturers. This relies, however, on students’ having access to both the necessary technology and to an environment conducive to learning.
- Published
- 2021
164. Making a “Bangladeshi diaspora”: Migration, group formation and emplacement between Portugal and Bangladesh
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Mapril, José and Mapril, José
- Abstract
In 1996, Appadurai argued that imagination is an essential element in the creation of cross-border political forms.Electronic media, for example, establishes links across national boundaries, linking those who move and those who stay.In his argument, these diasporic public spheres were examples of post-national political worlds and revealed the erosion of the nation-state in the face of globalisation and modernity. In this paper, I draw inspiration on this concept of diasporicpublic sphere but to show how these imaginaries are intimately tied to forms of group making and emplacement in several contexts. This argument is based on an ethnographic research about the creation of a transnational federation ofBangladeshi associations – the All European Bangladeshi Association (AEBA) – in the past decade, its main objectivesand activities. Through the analysis of an AEBA event that took place in Lisbon, I want to show the productive dialecticbetween diasporic imaginaries, group formation and emplacement processes between Portugal and Bangladesh.
- Published
- 2021
165. Detrital zircon fission-track thermochronology and magnetic fabric of the Amagá Formation (Colombia): Intracontinental deformation and exhumation events in the northwestern Andes
- Author
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Universidad EAFIT. Departamento de Ciencias, Geología Ambiental y Tectónica, Piedrahita, V.A., Bernet, M., Chadima, M., Sierra, G.M., Marín-Cerón, M.I., Toro, G.E., Universidad EAFIT. Departamento de Ciencias, Geología Ambiental y Tectónica, Piedrahita, V.A., Bernet, M., Chadima, M., Sierra, G.M., Marín-Cerón, M.I., and Toro, G.E.
- Abstract
New detrital zircon-fission track (ZFT) and magnetic fabric data are presented to constrain the time of deposition, provenance and deformation of the of Lower and Upper members of the Amagá Formation in the Amagá Basin. The Amagá Basin is located in the northern Andes, between the Western and Central Cordilleras of Colombia. The Amagá Formation was deposited in a transpressive geodynamic context and is allegedly synchronous with tectonic events such as the Andean orogeny and the Panama-Choco Block collision with the northwestern South American Plate. Detrital ZFT data confirm an Oligocene age for the Lower Member and a middle-Miocene age for the Upper Member of the Amagá Formation. In addition to constraining the depositional age, the ZFT data presented in this study also reflect Paleocene-Eocene, late to early Oligocene and late to middle Miocene cooling in sediment source areas mainly located in the Central and Western Cordilleras of Colombia. These ages can be associated with regional exhumation events in the central and northern Andes of South America. Collisional stages of the Panama-Choco Block against northwestern South America, subduction of the Farallon-Nazca Plate and strike-slip reactivation periods of the Cauca-Romeral fault system, caused NW-SE compression and NE-SW simple shear in the Amagá Basin. This deformational regime, identified by magnetic fabric data, induces syn- and post-depositional deformation over the Amagá Formation. © 2017 Elsevier B.V.
- Published
- 2021
166. Fission-track datings and geomorphic evidences for long-term stability in the Central Cordillera highlands, Colombia
- Author
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Universidad EAFIT. Departamento de Ciencias, Geología Ambiental y Tectónica, Toro, G., Hermelin, M., Schwabe, E., Posada, B.O., Silva, D., Poupeau, G., Universidad EAFIT. Departamento de Ciencias, Geología Ambiental y Tectónica, Toro, G., Hermelin, M., Schwabe, E., Posada, B.O., Silva, D., and Poupeau, G.
- Abstract
Age of weathered andesitic volcanic ash layers, which cover most of the landscape in the Central Cordillera northern massif plateaus in Colombia, were determined through the use of fission track counting in volcanic zircon crystals. A stoneline, exposed in many outcrops, which corresponds to the lower limit of younger tephras, gave ages between 350 ka and 440 ka. Andosols lying above the stoneline could not be dated. Paleolake deposits in the study area and surroundings were dated at about 2 Ma; older ashes deposited on the Rio Negro erosion surface (SII) below the stoneline level gave ages between 3.4 and 5.4 Ma. The study area is located about 150 km from the volcanic center. The ash layers decrease in thickness only slightly with distance, as perceived from profiles sampled in flat areas. We conclude that the only noticeable erosional event in the region was the emplacement of the stone-line. This erosion event which was relatively short and mild in intensity, as part of the underlying soil derived from quartzdiorite was preserved. This soil formed above a saprolite with a thickness which may reach 150 m, a fact which supports the inference that the plateaus have been stable for millions of years, in contrast to the high erosion rates observed in the surrounding steep slopes and canyons. © 2006 Gebrüder Borntraeger.
- Published
- 2021
167. A review of the ascent and emplacement of granitoid bodies into the crust
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Katarína Bónová
- Subjects
granite magma ascent ,emplacement ,conditions of magma migration ,Mining engineering. Metallurgy ,TN1-997 ,Geology ,QE1-996.5 - Abstract
This paper relates to basic information (i.e. mechanical aspects of ascent, indicators faciliting the discriminability of various ascent styles) about the models of ascent and emplacement of granitoid bodies, since the purely mechanical aspect of intrusion of magmas is a fascinating subject and it has generated a considerable controversy over many years. Individual models are demonstrated by world-known occurrences and examples from Western Carpathians region. The conditions of magma migration are demonstrated as well.
- Published
- 2005
168. Petrićev zagonetni govor kroz ustroj Peripatetičkih rasprava
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Ćiril Čoh
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Philosophy ,Frane Petrić ,Peripatetičke rasprave ,nepisano učenje ,Platonova crta ,Platon ,Aristotel ,govor ,veliko i malo ,materija ,umještanje ,chora ,Franciscus Patricius ,Peripatetic Discussions ,agrapha dogmata ,Plato’s line ,Plato ,Aristotle ,delivery ,Great and Small ,matter ,emplacement - Abstract
Članak polazi od pretpostavke da je u Petrićevoj filozofiji sveukupnost analogna filozofiji cjelokupnosti (philosophia universi), odnosno djelu koje ju izlaže. Sve što u sveukupnosti nastaje ima svoje umještanje, chora. Isto tako, u filozofskom djelu sve izloženo mora biti izloženo na svom mjestu. Petrićevo djelo Peripatetičke rasprave promišljeno je ustrojeno brojem svojih dijelova i odnosima među njima. Nije slučajan broj svezaka, broj knjiga u svakome od njih, a ni broj folija u svakom pojedinom svesku. Sve to upućuje na ustroj djela prema Platonovoj crti. Svrha djela je procjena (censura) Aristotelove filozofije spram istinske filozofije, filozofije Platona i prethodnika, njihova učenja o prvim počelima, a prije svega Platonova nepisanog učenja o velikom i malom te jednom. Govor o tome kod istinskih filozofa ne može biti u svemu izravan, nego mora biti zagonetan u onom bitnom., This paper is based on the assumption that, in Patricius’s philosophy, the totality is analogous to the philosophy of the totality (philosophia universi), that is, to the work that delivers it. Everything that arises in the totality has its emplacement, its chora. Likewise, everything that is provided in the philosophical work must be given in its place. With the number of its parts and the mutual relations between these parts, Patricius’s work Peripatetic Discussions shows us that the work is very carefully structured. The number of volumes, the books and folios within each of them is not incidental. All of this points to the structure of the work according to Plato’s line. The purpose of the work is the assessment (censura) of Aristotle’s philosophy in opposition to true philosophy, that is, philosophy of Plato and his predecessors, their doctrines on the first principles and above all, of Plato’s unwritten doctrine of the Great and Small, and the One. How true philosophers are delivering these doctrines cannot always be direct; rather, it must be enigmatic in what is substantial.
- Published
- 2019
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169. Imagining and Making Material Encounters: Skateboarding, Emplacement, and Spatial Desire
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Åsa Bäckström and Anne-Lene Sand
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emplacement ,self-built environments ,Sociology and Political Science ,materialising ,self-build environments ,Aesthetics ,urban landscape ,Social anthropology ,senses ,Sociology ,Urban landscape ,Competence (human resources) ,materializing - Abstract
In this article, we draw from and develop existing ideas of spatial desire and emplacement to explore skateboarders’ skilful mobility and perceptive competence. By combining findings from Swedish and Danish ethnographic studies, we illustrate how skateboarders imagine and make new material encounters both in urban environments not originally built for skateboarding and in skateparks. These imaginations and makings include memories of previous material encounters and are a part of ongoing social negotiations, but they also have a component of imaginary novelty. Making and imagining are discussed as materialization and formation, which include the idea of active materials and sentient practitioners. Two types of material encounters were imagined and made: transitions and smooth lines. Subsequently, two characteristics of these types of encounters were described: “kind” and challenging. The processes of imagination and making took a mutual understanding for granted and deeply engaged the body in the ever-changing material environment. We argue that a conceptualization of spatial desire as emplaced and highly imaginable is fruitful for research on skateboarding and other movement cultures where engagements with materials come to the fore.
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- 2019
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170. Petrology of the Garnet Amphibolites from the Tejići Village - Povlen Mt., Western Serbia
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Srećković-Batoćanin Danica R., Milovanović Dragan, and Balogh Kadosa
- Subjects
amphibolites ,ophiolite complex ,olistotrome mélange ,metamorphism ,emplacement ,Geology ,QE1-996.5 - Abstract
Different metamorphic rocks discovered near the village of Tejići (Povlen Mt., Western Serbia) represent members of the olistostrome mélange metamorphosed during the obduction/emplacement of some still hot ultramafic body. They occupy the area of about 2 km2. The garnet amphibolites are of highest metamorphic grade in the area of Tejići and were chosen as the most convenient rocks for determination the pressure-temperature conditions of metamorphism and of ultramafics during their emplacement.
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- 2002
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171. DWELLING IN THE POST-WAR CITY URBAN RECONSTRUCTION AND HOME-MAKING IN SARAJEVO.
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BÂDESCU, GRUIA
- Abstract
This article explores how the process of urban reconstruction and the act of dwelling in post-war Sarajevo were connected to the reshaping of postwar identities in BiH, as well as to the (re)creation of a sense of place and a sense of belonging for pre-war residents and new residents alike. Interviews with architects, urban planners and residents from a variety of backgrounds were used to understand city-making and home-making processes. In the first part, the article discusses the framework and process of urban reconstruction in the city of Sarajevo and the city of East Sarajevo, analyzing how nationbuilding and international capital reshape urban space. In the second part, the article explores how pre-war Sarajevans and displaced people in Sarajevo perceive the city as their home and its spatial and social reconfiguration as part of "home-making" - understood as the process of investing spaces with the meaning of home. The article argues that ambivalence and fluidity reshape the dwelling space defined by post-war settlements and international capital flow with distinctive agendas. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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172. Militantly well.
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Vigh, Henrik E.
- Subjects
URBAN youth ,YOUTHS' attitudes - Abstract
Copyright of HAU: Journal of Ethnographic Theory is the property of University of Chicago Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
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173. Moving bodies and the staging of the tourist experience.
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Chronis, Athinodoros
- Abstract
This article looks into guided tours as an exemplary kinesthetic consumption experience and focuses on the work of tour guides as influential agents who participate in the tourism staging of the destination. As opposed to the overwhelming emphasis placed on the discursive construction of tourist places, my analytic lens is the moving body and its manifold engagement with the surrounding space. Grounded on fieldwork at a National Military Park, I provide insight into three clusters of strategies of body-space staging: spatialization, emplacement, and regulation. I also extend existing knowledge on the staging of tourist experiences by theorizing the construction of a tourism stage as an aggregate of three overlapping and intertwined staging modes: communicative, material, and body-space. [ABSTRACT FROM AUTHOR]
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- 2015
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174. Asthma on the move: how mobile apps remediate risk for disease management.
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Kenner, Alison
- Subjects
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NEW product development , *MOBILE apps , *ASTHMA , *CONTENT analysis , *ENVIRONMENTAL health , *HEALTH , *HEALTH education , *INTERVIEWING , *PATIENT monitoring , *RISK assessment , *INFORMATION resources , *DISEASE management , *PSYCHOLOGY - Abstract
Mobile health apps have emerged as a technological fix promising to improve asthma management. In the United States, treatment non-adherence has become the most pressing asthma risk; as such, emphasis has increasingly focused on getting asthmatics to take medications as prescribed. In this article I examine how mobile Asthma (mAsthma) apps operate as part of digital risk society, where mobile apps create new modes of risk identification and management; promise to control messy and undisciplined subjects and care practices; use algorithms to generate new risk calculations; and make risk livelier through digital assemblages. Drawing on ethnographic fieldwork, content analysis of mAsthma app design, as well as interviews with app developers, in this article I argue that these digital care technologies strip disease and risk of biographical, ecological and affective detail in ways that largely reinforce biomedical paradigms. Yet some apps offer new insight into the place-based dynamics of environmental health, a view made possible with digitised personal tracking, visual analytics and crowdsourced data. mAsthma apps are caught in the tension between the biopolitics of existing chronic care infrastructure, which reinforce a strict neoliberalised patient responsibility, and the promise of collective, place-based approaches to global environmental health problems. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
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175. The abandoned village? Introduction to the special issue.
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Sorge, Antonio and Padwe, Jonathan
- Subjects
- *
VILLAGES , *EMPLACEMENT (Geology) , *ETHNOLOGY , *GLOBALIZATION , *URBAN elitism , *RURAL population - Abstract
In an increasingly urban world, the places where anthropologists work and the subjects they study have undergone significant tranformations. Anthropologists today find themselves working in cities and in sites of advanced technological production, studying urban elites and scientific experts, and pushing the bounds of ethnographic practice “beyond the human.” As a result, the village, once the site par excellence of the ethnographic encounter, has largely disappeared from view in anthropological writing. In this introduction, we examine the underlying shifts in modes of anthropological investigation that have produced this outcome, paying special attention to the emergence of multi-sited ethnography and the reaction against earlier framings of villages as bounded and coherent social wholes. Along with the other contributors to this Special Issue we raise the question of what has become of the village as a site of ethnographic analysis, and argue that we have much to gain from a re-engagement with village worlds. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
176. Language and Place-knowledge on Norfolk Island.
- Author
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Nash, Joshua and Low, Mitchell
- Subjects
- *
LANGUAGE & languages , *ETHNOLOGY , *TOPONYMY , *SOCIAL networks , *LINGUISTICS - Abstract
Using the place-naming practices in the small settler society of Norfolk Island, the home of Anglo-Polynesian descendants of theBountymutineers, we advance a linguistic argument against Saussure's claims concerning the arbitrariness of signs. When extended to place names, Saussure's claims about language in general imply place names in themselves hold no significance for how people interact with places. In contrast, we use ethnographic examples to show that people of Norfolk Island interact with the significance of the names themselves. Arguments for an integrated approach to toponymy in which place names are considered alongside other relational (cultural, economic and historical) factors that influence their use and meaning are put forward. We propose ‘toponymic ethnography’ as a useful methodology for understanding the connectedness of toponyms to people, place, and social networks. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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177. The Ordovician Las Chacritas pluton (Sierra de Humaya, NW Argentina): origin and emplacement triggered by lateral shortening and magmatic stoping at mid-crustal level.
- Author
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Larrovere, Mariano, Alasino, Pablo, de los Hoyos, Camilo, and Willner, Arne
- Subjects
- *
MONAZITE , *MAGMAS , *IGNEOUS rocks , *SEDIMENTARY rocks , *CRYSTALLIZATION - Abstract
Field relationships and structural studies combined with in situ U-Th-Pb dating of monazite from Las Chacritas pluton (LCP), Sierra de Humaya, provide insight into the emplacement of peraluminous magmas triggered by lateral shortening of the host rock and magmatic stoping at a mid-crustal level of a retro-arc zone in a convergent orogen. Modal and chemical compositions indicate that the LCP is composed of two main igneous units of peraluminous granitoids. The predominant two-mica granitoids were generated by interaction of crustal rocks with mafic or mafic-derived magmas and/or crystal-rich magmas that entrained residual phases, whereas less abundant leucocratic granitoids may have been originated by partial melting of metasedimentary rocks. The calculated crystallization age of 474 ± 4 Ma is consistent with Ordovician ages (477-470 Ma) of the high-grade metamorphic rocks, indicating concomitant magmatism and metamorphism during the Famatinian orogeny. The LCP was emplaced in the middle crust at a maximum depth of ~14.5 km, where attendant fracturing and ductile deformation were active. Field evidence shows strong temporal and spatial relationships between host rock ductile deformation and the emplacement of the pluton such as folding and strike deflection of the host rock layering and folded concordant leucocratic sheets with magmatic fabrics. This suggests that material transfer processes like lateral wall rock displacement (lateral shortening) was a viable mechanism for the emplacement of the LCP. However, cross-sectional restoration and field evidence such as wall rock xenoliths and intrusive truncations of the host rock foliation and fold traces suggest that magmatic stoping was a complementary mechanism to create the necessary space for the emplacement of the LCP. This work supports previous studies showing that participation of multiple material transfer processes are the rule rather than the exception in the emplacement of plutons. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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178. Petrology and geochemistry of mafic dykes from the Muslim Bagh Ophiolite (Pakistan): implications for petrogenesis and emplacement.
- Author
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KAKAR, Mohammad Ishaq, MAHMOOD, Khalid, ARIF, Mohammad, KHAN, Mehrab, KERR, Andrew C., MOHIBULLAH, Mohibullah, and KASI, Aimal Khan
- Subjects
- *
PETROLOGY , *PETROGENESIS , *MAGMAS , *IGNEOUS intrusions - Abstract
Two different types of mafic dykes are found in the Muslim Bagh Ophiolite: 1) a sheeted dyke complex and 2) a mafic dyke swarm. Relative to the host plutonic section, the sheeted dykes are poorly developed, implying that they formed in an oceanic setting with a low and intermittent supply of magma, probably because of cyclic accumulation of crystals at the base of the magma chamber. Both the sheeted dykes and the dyke swarms have been metamorphosed to greenschist/amphibolite facies conditions. With the exception of the upper level gabbros and sheeted dykes, the dyke swarms crosscut almost the whole ophiolite suite as well as the metamorphic sole rocks, but are truncated structurally at the contact with the underlying mélange and sediments. Hence, the injection of the dyke swarms postdates the formation of both the main Muslim Bagh Ophiolite and the metamorphic sole rocks, but predates the accretion of the mélange and the final emplacement of the ophiolite onto the Indian plate margin. Both the sheeted dykes and dyke swarms are tholeiitic and have a geochemical signature of either island arc tholeiites (IAT) or are transitional between mid-oceanic ridge basalts and IAT. Oceanic rocks with such characteristics, especially their enrichment in large-ion lithophile elements, are generally thought to have formed by processes involving a subduction zone component in the source region by fluids released from the subducting slab. The Muslim Bagh Ophiolite sheeted dykes originated in the late Cretaceous, in a supra-subduction zone tectonic setting related to the subduction of a narrow branch of the Neo-Tethys Ocean, followed by a subduction rollback due to splitting of the nascent arc in the Tethys Ocean. This intra-oceanic subduction led to the formation of a metamorphic sole, followed by the of-axis intrusion of mafic dykes into the ophiolite through a slab window. The Muslim Bagh Ophiolite was accreted to the Bagh Complex and finally obducted onto the Indian Platform. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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179. Advancing tourism’s moral morphology: Relational metaphors for just and sustainable arctic tourism.
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Grimwood, Bryan SR
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TOURISM research ,EMPLACEMENT (Geology) ,ETHNOLOGY research ,NATURE ,METAPHOR ,WAYFARING life - Abstract
Perceptions and representations of Arctic tourism that reify ‘pristine’ nature can obscure the livelihoods of Arctic Aboriginal inhabitants, thus impeding cooperation among all Arctic tourism stakeholders. The purpose of this article is to illuminate relational, value-based metaphors that may nurture cooperative spaces for just and sustainable Arctic tourism. It draws on case study research of the Thelon River in Arctic Canada and, specifically, the productive tensions and affiliations expressed through diverse practices of canoe tourists and Inuit residents of Baker Lake, Nunavut, documented using mobile ethnography. Empirical substance is interpreted against a backdrop of supporting literatures to flesh out emplacement, wayfaring and gathering as relational metaphors of becoming; that is, in their fluidity, hybridity and indeterminacy, they refuse absolute, universal or divisive expressions of value. These metaphors intend to disrupt the ‘nature’ of Arctic tourism and create opportunities to understand, debate and craft tourism’s intellectual terminology. [ABSTRACT FROM PUBLISHER]
- Published
- 2015
- Full Text
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180. Rift Volcanism and Rift Basin in Central Myanmar Basin
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Aung, Hla Hla and Aung, Hla Hla
- Abstract
The Central Myanmar Basin is made up of Tertiary sedimentary rocks between the Rakhine Western Ranges in the west and Shan Plateau to the east. The basin consists of six sub-basins: Putao, Hukawng, Chindwin, Salin, Pyay and Ayeyawady Delta basin. This 1000 km× 200km tectonic strip in NNW-direction in Central Myanmar Basin is characterized by the presence of numerous ENE to northeast and east-west trending normal faults and north-south to NW-SE and NNW-SSE trending folds and thrusts. This arrangement of structures is indicative of an extensional stress in NNW-SSE direction and a compressional stress in ENE-WSW direction. Tensor solution of earthquakes which occurred in Central Myanmar Basin also indicates a dominant extensional stress direction oriented NNW-SSE. This NNW-SSE extensional direction appears to have favored the formation of rifts in ENE-WSW, NE-SW and E-W direction which were later emplaced with volcanic rocks. These volcanic rocks were derived from mantle material which risen into the several segments of rifts from underneath of the crust during rifting. Majority of these volcanic rocks are different types of basalt, andesite, dolerite, volcanic tuff, volcanic ash, lava flow and rhyolites. The studies of associated sedimentary rocks with the volcanic rocks indicate that extension and volcanic activity began in the north in Early Tertiary and migrated to the south from the Miocene to Quaternary. The Central Myanmar Basin and Central Andaman Basin record an active extensional process that varies laterally from continental rifting in the north in Central Myanmar Basin and sea-floor spreading in the south in Central Andaman Basin. The objective of this paper is to define regional volcanic differentiation pattern and their linear emplacement which are in accordance with regional tectonic stress field and to interpret them in term of tectonic deformation. Bimodal basalt-rhyolite suite with the presence of intermediate composition and compositional varia
- Published
- 2020
181. Listening and Drawing: Methodologies Towards Emplacement
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Hester, Bianca, Faculty of Art & Design, UNSW, Cvoro, Uros, Faculty of Art & Design, UNSW, Chen, Yuen Zhe, Art, Faculty of Art & Design, UNSW, Hester, Bianca, Faculty of Art & Design, UNSW, Cvoro, Uros, Faculty of Art & Design, UNSW, and Chen, Yuen Zhe, Art, Faculty of Art & Design, UNSW
- Abstract
This practice based PhD develops processes of embodied listening and experimental drawing as multi-sensory, emplaced methodologies to articulate new approaches to the contemporary practice of drawing. Through creative interactions with the historically significant and visually iconic sites of Golden Gully in Hill End, New South Wales, Australia; and the village of Langshi in Guilin, Guangxi Zhuang Autonomous Region, China, this project examines how drawing and listening can generate an awareness of perceptual, cultural and social emplacement. My practice initiates a dialogue with visual paradigms evident in painted and poetic responses to these places from the Australian 20th century landscape and Chinese 12th to 13th century shanshui traditions. From these departure points, the practice responds to the material reality of Golden Gully and Langshi in the present. My engagement with these places is inflected by my context as a migrant, female artist of Chinese heritage practicing between cultures in Australia and internationally. The contextual specificity of this position in the practical research reinforces an approach to these places as constituted of many possible relations.Through experimental process-based interactions with these places, I develop four embodied listening methodologies of Touch, Space, Durations and Sounding. These methodologies address the specific perceptual conditions generated by my engagements with these places. They facilitate the analysis of drawing with sound feedback and malleable paper ‘mediators,’ which act as conduits shaping my perceptual and physical interactions with these places. The drawing properties of surface, gesture and line, are extended through the intersubjective experiences of listening and innovated by the spatial and temporal fluidity of sound. Sound feedback compositions, paper mediators and video works from creative interactions with Golden Gully and Langshi, are used to mediate further experimental interactions wit
- Published
- 2020
182. Let's Do Away with Urban : Autoethnographic Adventures in Stockholms län
- Author
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Butler, Olivia and Butler, Olivia
- Abstract
The spatial categorisations of urban and rural are still used in academia, lay terminology and policy formation in spite of a postmodern obsession with the deconstruction of binaries. Hitherto, the urban rural dichotomy has been exposed to little scrutiny, and the critiques that have been made come from the epistemological standpoint of total urbanisation which assumes the rural will be effaced by a perennial urban sprawl. The rural urban dichotomy is a derivative of the larger ideological dualism of nature and society and it has long been postulated, particularly from the standpoint of political ecology, that in the Anthropocene, nature does not exist beyond human influence. This would, in theory, support the theory that rural space is becoming effaced. Previous studies have, however, demonstrated that this subjugation of the rural to the urban works to stigmatise rural populations and engender disenfranchisement that has led to a resurgence in far-right nationalism across much of Europe. This subjugation has been enforced through this very urban norm in which both technocrats and academics favour the urban as a field for policy formation and research. When attempting to define the urban and the rural, it was found that the terms (a) are confused and confusing, evading any useful definition; (b) perpetuate a false neutrality that assumes a linear progression from rural to urban and (c) fail to recognise the complexities of space which resists binary distinctions. As such, I used Lefebvre’s spatial trifecta which suggests space is produced by three complimentary and contradictory processes: of perceived space (the material space of what we can actually see and touch, altered by seemingly banal everyday practices), conceived space (the (re)representations of space that are circulated by planners and technocrats) and lived space (the affectual space of emotion, memory and meanings) in order to think through the problems of the binary. As such, this thesis aimed to e
- Published
- 2020
183. BIKES: Bicycle Itinerancy Kalman filter with Embedded Sensors for challenging urban environment
- Author
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Valérie Renaudin, Johan Perul, Géolocalisation (AME-GEOLOC), and Université Gustave Eiffel
- Subjects
VELO ,BICYCLETTE ,Computer science ,Real-time computing ,ZONE URBAINE ,ESTIME ,LOCATION AWARENESS ,[SPI]Engineering Sciences [physics] ,EMPLACEMENT ,11. Sustainability ,SENSORS ,CAPTEUR ,Electrical and Electronic Engineering ,Instrumentation ,BICYCLES ,RECEPTEUR ,WHEELS ,NAVIGATION INERTIELLE ,RECEIVERS ,RECEPTEURS ,Kalman filter ,ROUE ,GNSS GLOBAL NAVIGATION SATELLITE SYSTEM ,SENSIBILISATION A L&apos ,URBAN AREAS ,NAVIGATION A L&apos ,GEOLOCALISATION ET NAVIGATION PAR UN SYSTEME DE SATELLITES - GNSS ,DEAD RECKONING ,Urban environment - Abstract
The use of bicycles is regaining popularity, especially in city centers where they can be used as quickly as cars and reduce carbon footprint. However, in these dense urban environments, navigation methods based on GNSS technologies do not provide sufficient accuracy for cyclist navigation and safety. To mitigate the challenges of indoor-like surroundings, a new positioning algorithm: BIKES (Bicycle Itinerancy Kalman filter with Embedded Sensors) was developed. This extended Kalman filter processes deeply degraded GNSS data to update velocity and position estimates with differential computation approaches working even in degraded environments. GNSS signals are combined with inertial and magnetic data to continuously estimate the trajectory when GNSS is unavailable. BIKES' performance was tested in real-life conditions on a 3 km long path in the city center downtown Nantes and compared to Google Fused Location Provider estimates. A mean positioning error below 1 m with a 0.5 m standard deviation is achieved. These results are 4 times better than the Google solution. This algorithm allows also distinguishing if the cyclist is riding on a bike path, the sidewalk, or the road, which is critical for guidance systems.
- Published
- 2021
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184. Leyendo el pasado: Recreando mi infancia a través de testimonios inadvertidos
- Author
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Gonzalo-Valmala, S. (Sofía) and Davis, R.G. (Rocío G.)
- Subjects
Autobiografía ,Filología y Literatura [Materias Investigacion] ,Correspondencia ,Memoria ,Emplacement ,Email ,Identidad - Abstract
Este proyecto nace del interés en analizar una serie de correos que escribí en mi estancia en Indonesia de los 7 a los 11 años dirigidos a mis familiares españoles. Tras un encuentro con ellos, muchos años después, nacieron en mí sentimientos como la extrañeza y la sorpresa, y descubrí cosas de la forma que tenía en aquellos años de entender mi sentido de la identidad y de pertenencia que desconocía. El propósito de este trabajo es estudiar por qué el contacto con un material propio años después de su redacción puede suscitar estos sentimientos, y de qué formas las características de la correspondencia revelan una información como esta. El proyecto se divide en tres partes. En el primer capítulo se hace un breve acercamiento a la forma epistolar: cómo se fundamenta en el campo autobiográfico, cuáles son las dificultades a la hora de delimitar el género y qué rasgos mantiene frente a otras formas de escritura de la vida. Asimismo, reflexiono sobre los emails como fruto de la convivencia de la carta tradicional con los medios digitales, las nuevas características que traen consigo y sus repercusiones en las dinámicas comunicativas. El segundo capítulo consiste en un análisis de mi propio material autobiográfico a la luz de lo explicado en el primer apartado y de los conceptos de identidad, emplacement, y memoria. El trabajo se cierra con un tercer capítulo en el que narro, de forma literaria, tres episodios significativos de mi pasado según lo aprendido a lo largo del trabajo.
- Published
- 2021
185. Pandemic Pedagogy: Assessing the Online Implementation of a Decolonial Curriculum
- Author
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Shannon Morreira
- Subjects
Higher education ,business.industry ,Teaching ,Educational systems ,Emplacement ,Higher Education ,Social science ,Decoloniality in higher education ,Pandemic ,Pedagogy ,Online pedagogy ,Learning ,Sociology ,business ,Curriculum ,Emergency remote teaching - Abstract
The student protests in South Africa (2015–2017) triggered shifts in pedagogical practices, such that by 2020 many South African higher education institutions had begun to make some concrete moves towards more socially just pedagogies within teaching and learning (Quinn, 2019; Jansen, 2019). In March 2020, however, South Africa went into lockdown as a result of Covid-19, and all higher education teaching became remote and non-synchronous. This paper reports on the effects of the move to remote teaching on the implementation of a new decolonial ‘emplaced’ pedagogy at one South African university. The idea of emplacement draws on the careful incorporation of social space as a teaching tool within the social sciences, such that students can situate themselves as reflexive, embodied persons within concrete spaces and communities which carry particular social, economic and political histories. This paper draws on data from course evaluations and student assignments, as well as a description of course design, to argue that many of the benefits of careful emplacement in historical and contemporary context can happen even where students are never in the same physical spaces as one another or their lecturers. This relies, however, on students’ having access to both the necessary technology and to an environment conducive to learning.
- Published
- 2021
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- View/download PDF
186. emplacement
- Author
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Herrmann, Helmut and Bucksch, Herbert
- Published
- 2014
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187. Emplacement and path dependence in the American Midsouth.
- Author
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Wright, Alice P., Sherwood, Sarah C., Henry, Edward R., Carmody, Stephen B., Barrier, Casey R., and Van de Ven, Christopher
- Subjects
- *
NATIVE Americans , *GEOPHYSICAL surveys , *INDIGENOUS peoples , *PATH analysis (Statistics) , *METAPHYSICAL cosmology , *CLIMATE change , *FORESTS & forestry - Abstract
• Native American mounds testify to social, political, and cosmological emplacement. • Path dependence analysis permits historical assessments of early emplacement. • Evidence from the Johnston site suggests pre-mound emplacement 1200–1000 cal BC. • Emplacement at Johnston may relate to wider regional histories and climate change. The origins and histories of mounds are perennial topics of investigation in the American Southeast, underscoring the centrality of these monuments to the social lives and cosmologies of Indigenous southeastern peoples. Drawing upon theories of persistent place and path dependence, we argue that a focus on the pre-mound histories of mound sites can elucidate emplacement at these monumental locales. Our focus is the Johnston site (40MD3) in what is now known as West Tennessee, one of three sites along the South Fork of the Forked Deer River that witnessed unprecedented monumentalization in the early centuries AD. Geophysical survey, targeted excavations, and AMS dating at Johnston have revealed a 6000-year history that predates Middle Woodland mound building. By contextualizing this evidence against the cultural and environmental backdrop of the Middle Archaic through Middle Woodland Midsouth, we propose that formal emplacement – the creation and reinforcement of connections between people and place – transpired nearly four millennia after Johnston was first occupied, but possibly centuries before mounds were erected there. These findings underscore the complexity of processes of emplacement, and the importance of considering mounds within the larger spatial and temporal extents of monumental sites, and monumental sites within wider regional landscapes and histories. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
188. Structural features and emplacement of the late Svecofennian Perniö granite sheet in southern Finland
- Author
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O. Selonen, C. Ehlers, and A. Lindroos
- Subjects
granites ,phenocrysts ,gneisses ,structural analysis ,deformation ,folds ,shear zones ,emplacement ,dilatancy ,Paleoproterozoic ,Pernio ,Kemiö ,Finland ,Geology ,QE1-996.5 - Abstract
The 1840-1830 Ma old Perniö granite occupies the southern margin of the Sauvo-Perniö granite area located in the western part of the late Svecofennian granite-migmatite zone in southern Finland. The S-type Perniö granite is light to dark red, medium- to coarse-grained with euhedral K-feldspar phenocrysts forming the porphyritic texture of the granite. The high grade supracrustal volcanic rocks and mica gneisses in the Sauvo-Perniö granite area show polyphase deformation. The D1 is characterized by isoclinal and intrafolial Fl folds. During the D2 the supracrustal sequence was thrusted towards the northwest. Combined ductile E-W shear movements and NNW-SSE compressional movements defined a transpressional tectonic regime during the D3 deformation. The Pernio granite intruded along subvertical mid-crustal feeder channels and was emplaced as a sheet or sheets along subhorizontal shear zones during the late stage of the F3 folding. After intruding into the shear zones the viscous granite magma was deformed. The K-feldspar phenocrysts in the granite acted as rigid particles in a viscous matrix and were rotated and imbricated in response to shearing along the subhorizontal shear zones indicating movements of the upper side of the granite sheet towards the west. Strike-slip dilatancy pumping is suggested as a possible mechanism for the emplacement of the Pernio granite.
- Published
- 1996
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189. The Orivesi granite batholith, Southern Central Finland - characteristics and emplacement
- Author
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O. Selonen and C. Ehlers
- Subjects
granites ,batholiths ,emplacement ,diapirism ,shear zones ,faults ,structural analysis ,complexes ,igneous rocks ,dimension stone ,Palaeoproterozoic ,Orivesi ,Juupajoki ,Finland ,Geology ,QE1-996.5 - Abstract
The Orivesi granite batholith is situated in an E-W trending belt of granite intrusions along the southern margin of the Central Finland Granitoid Complex (CFGC). It consists of the dominant Orivesi granite and of two minor components: a coarse-grained quartz-rich porphyritic granite (the Särkijärvi granite) and an aplite granite. No associated mafic components are found. The Orivesi granite is light red to red, coarse-grained and porphyritic with a magmatic foliation. The porphyritic texture is formed by potassium feldspar phenocrysts, which are in general euhedral, but oval (and mantled) megacrysts occur. The granite is extracted as dimensional stone ("Cardinal Red"/"Crystal Rose") from the southwestern part of the batholith. Additional potential sites for dimension stone are identified in same part of the batholith. The Orivesi granite batholith has intruded along regional shear zones in the southern part of the CFGC. The intrusion was diapiric at least during the final emplacement, and produced the magmatic structures in the batholith. Regional deformation has affected the batholith only as semi-brittle movements along aplites and narrow shear bands. The magmatic foliation is concentric in relation to the margins of the batholith. The ductile structures in the host rocks are parallel to the long axis of the batholith and do not continue into its marginal parts. The Orivesi granite is intrusive against both the surrounding granodiorites and the mica schists and can be regarded as post-tectonic in relation to the ductile deformation in the host rocks. A NNW-SSE trending fault zone cuts the Orivesi granite batholith into two halves. The western half has been uplifted in relation to the eastern half producing different structural features in the batholith halves at the present level of erosion. A section representing a lower crustal level, the western half, consists of sparsely fractured Orivesi granite with well developed, steep, penetrative and concentric foliation. The upper parts of the batholith in the eastern half, on the contrary, are characterized by intrusions of late magmatic melts in the Orivesi granite: the Särkijärvi granite and the aplite sheets and dykes. The foliation in the Orivesi granite is poorly developed in the eastern half and the late fracturing on outcrop scale is dense. In consequence the quarries and potential sites of dimension stone are in the western half, where the Orivesi granite is as dimension stone material more homogeneous and sound.
- Published
- 1996
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190. Sensuous Governance: Assessing Urban Animal Hoarding.
- Author
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Holmberg, Tora
- Subjects
- *
ANIMAL hoarding (Human behavior) , *ANIMAL welfare , *URBAN animals , *COMPULSIVE hoarding , *ANIMAL rescue - Abstract
This article addresses how professional animal welfare inspectors and police officers produce knowledge about animal hoarding, and how they detect disconcern and come to conclusions about how to act. The specific aim is to contribute to a sociological understanding of the phenomenon of urban animal hoarding assessment by deploying the framework of “sensuous governance”. I will do so by focusing on the ways in which authorities use and record their senses of the emplaced situation – their visual, olfactory and auditory impressions – in order to make a judgement. The more general contribution concerns how the dimension of species adds to the long-lasting sociological interest in sensing as a mode of knowing about our environment. Using interview data along with animal welfare protocols from a Swedish study of human/animal relations in the city, the intersection of species, spaces and senses is put in focus. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
191. Sentience of the Earth: Eco-Buddhist Mandalizing of Dwelling Place in Amdo, Tibet.
- Author
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Smyer Yü, Dan
- Subjects
- *
TIBETAN Buddhism , *BUDDHISTS , *ETHNOLOGY research , *YOGIS , *CULTURE & the environment - Abstract
I present a case study of Tibetan Buddhism as a lived religion embodied in the greater environment of a village in eastern Amdo, Tibet. Specifically, I explore the interconnectedness of place-based Buddhist practices that, I argue, present an example of care for sacred landscapes in Tibetan Buddhism. Based on my ethnographic work, I make a threefold argument. First, Buddhism in Tibet can be viewed as 'an emplaced religion' signifying the antecedent role of place in forging the complex intertwinement of the Earth and humans. Second, the sacredness in the local landscape entails a shared, hierarchical entwinement of place, humans, and gods. Third, the way the villagers, especially the lay tantric yogis, consecrate their environment expresses their connection and care for the landscape. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
192. Kävelyssä rakentuva paikka.
- Author
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Suopajärvi, Tiina
- Abstract
Copyright of Sosiologia is the property of Westermarck Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
193. Prendre place dans les territoires. L’implantation des ruchers en apiculture professionnelle
- Author
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Dupre, Lucie, Centre d'Economie et de Sociologie Rurales Appliquées à l'Agriculture et aux Espaces Ruraux (CESAER), and AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
- Subjects
emplacement ,rucher ,[SHS.SOCIO]Humanities and Social Sciences/Sociology ,incertitudes ,rural area ,professional beekeeping ,beekenping ,[SHS.ANTHRO-SE]Humanities and Social Sciences/Social Anthropology and ethnology ,apiary site ,uncertainties ,espace rural ,work ,travail ,burgundy ,Bourgogne ,apiculture professionnelle ,agriculture - Abstract
International audience; Souvent décrits comme des « agriculteurs sans terre », les apiculteurs professionnels entretiennent un lien complexe et étroit avec le territoire, qu’ils investissent à travers leurs ruchers. S’intéresser à l’emplacement de ces derniers ne permet pas seulement de rendre visibles les principes territoriaux de l’apiculture professionnelle et ses rationalités, renvoyant à des systèmes d’une grande complexité. À partir d’une enquête sociologique conduite en Bourgogne auprès d’apiculteurs professionnels diversement expérimentés, cet article contribue également à comprendre la place forte et fragile, incertaine et singulière que cette activité doit négocier dans ses rapports aux autres et aux milieux.
- Published
- 2020
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194. A steeply-inclined trajectory for the Chicxulub impact
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Collins, G. S., Patel, N., Davison, T. M., Rae, A. S. P., Morgan, J. V., Gulick, S. P. S., Christeson, G. L., Chenot, E., Claeys, P., Cockell, C. S., Coolen, M. J. L., Ferrière, L., Gebhardt, C., Goto, K., Jones, H., Kring, D. A., Lofi, J., Lowery, C. M., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A. E., Poelchau, M. H., Rasmussen, C., Rebolledo-Vieyra, M., Riller, U., Sato, H., Smit, J., Tikoo, S. M., Tomioka, N., Urrutia-Fucugauchi, J., Whalen, M. T., Wittmann, A., Xiao, L., Yamaguchi, K. E., Artemieva, N., Bralower, T. J., Geology and Geochemistry, Department of Earth Science and Engineering [Imperial College London], Imperial College London, Institut de chimie et procédés pour l'énergie, l'environnement et la santé (ICPEES), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Science and Technology Facilities Council (STFC), and Natural Environment Research Council (NERC)
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010504 meteorology & atmospheric sciences ,Science ,Impact angle ,General Physics and Astronomy ,010502 geochemistry & geophysics ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,Article ,Impact crater ,EMPLACEMENT ,DEFORMATION ,CRATER ,10. No inequality ,lcsh:Science ,0105 earth and related environmental sciences ,Multidisciplinary ,Science & Technology ,Plane (geometry) ,ORIGIN ,METEORITE ,General Chemistry ,ANGLE ,Multidisciplinary Sciences ,BOUNDARY ,SIZE ,Meteorite ,PEAK-RING FORMATION ,13. Climate action ,Asteroid ,[SDU]Sciences of the Universe [physics] ,ASYMMETRY ,Trajectory ,Science & Technology - Other Topics ,lcsh:Q ,Third-Party Scientists ,IODP-ICDP Expedition 364 Science Party ,Asteroids, comets and Kuiper belt ,Seismology ,Geology - Abstract
The environmental severity of large impacts on Earth is influenced by their impact trajectory. Impact direction and angle to the target plane affect the volume and depth of origin of vaporized target, as well as the trajectories of ejected material. The asteroid impact that formed the 66 Ma Chicxulub crater had a profound and catastrophic effect on Earth’s environment, but the impact trajectory is debated. Here we show that impact angle and direction can be diagnosed by asymmetries in the subsurface structure of the Chicxulub crater. Comparison of 3D numerical simulations of Chicxulub-scale impacts with geophysical observations suggests that the Chicxulub crater was formed by a steeply-inclined (45–60° to horizontal) impact from the northeast; several lines of evidence rule out a low angle (, The authors here present a 3D model that simulates the formation of the Chicxulub impact crater. Based on asymmetries in the subsurface structure of the Chicxulub crater, the authors diagnose impact angle and direction and suggest a steeply inclined (60° to horizontal) impact from the northeast.
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- 2020
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195. Manifestations of sensory perception in some poems included in two digital Byderhand installations at Worcester, South Africa
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Bernard Odendaal
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emplacement ,History ,Byderhandprojek ,plekspesifieke digitale poësie ,site-specific digital poetry ,media_common.quotation_subject ,visual impairment ,kulturele bepaaldheid ,ingeplaastheid ,Visual arts ,intero-reseptore ,Worcester ,Perception ,Jacques Lacan ,embodied perception ,sintuiglikheid ,sensing ,media_common ,Byderhand Project ,Poetry ,General Arts and Humanities ,intero-receptors ,psycho-analysis ,General Social Sciences ,ekstero-reseptore ,beliggaamde persepsie ,psigo-analise ,cultural determination ,siggestremdheid ,extero-receptors - Abstract
In die Westerse tradisie word veral sig, maar ook gehoor, as 'n "hoër" sintuiglike vermoë geag. Hiertoe dra die versnelde opkoms van 'n wetenskapskultuur oor veral die afgelope twee eeue by. Beelding gebaseer op veral visuele waarneming oorheers ook in die digkuns, soos waarneembaar is in die meeste gedigte opgeneem in twee Byderhandprojek- digitale installasies by die Pionierskool en in die Karoo Woestyn Nasionale Botaniese Tuin te Worcester. Die tassintuig speel 'n belangrike rol in siggestremdes se verkenning van voorwerpe en ruimtes. Betasting verg beweging, sodat siggestremdes se waarnemingswyse deur beweging gekenmerk word. Analogisering van sintuiglike waarnemings (sinestesie) is nog 'n strategie wat dikwels deur hulle benut word. Meer onlangse navorsing beklemtoon dat daar, naas die uiterlike sintuie, ook intero-reseptore (vir waarneming van, byvoorbeeld, balans en beweging) is wat die mens se persepsie bepaal. Sodoende word beliggaamde belewing moontlik. Laasgenoemde dien as teenvoeter vir die kultureel en talig gemedieerde omgang met ver-skynsels wat, in Lacaniaanse terme, so kenmerkend die Simboliese Ordening daarvan oorheers. Vier gedigte uit die Byderhandprojek-versameling te Worcester wat in hierdie artikel bespreek word demonstreer, op verskeie wyses, bogenoemde aspekte van sintuiglikheid. Die ingeplaastheid van estetiese belewing wat hierdie geïnstalleerde tekste bemiddel, korreleer voorts met die begeerte na liggaamlike toenadering tot die Karoo-natuurverskynsels wat in die gedigte uitgedruk word. In the Western tradition, sight and hearing have come to enjoy cultural primacy as external sensory capabilities (Wilfong 2015; Rowland 1976a), including for appreciating artefacts of art. The accelerated growth of a culture of science during the recent two centuries, has added to this privileged status of especially visual perception as a means of comprehending phenomena (Classen 2007). It comes as no surprise, therefore, that imagery based on visual perception tends also to dominate in poetry; in fact, poetry is currently often deemed to be a primarily visual artistic manifestation (Agamben 1999; Longenbach 2008; Silverman 2011). The majority of the poems written or made available for the "Byderhand" (in English: At Hand) Project of two digital installations in, respectively, the multi-sensory garden of the Pioneer School for the Visually Impaired and the Karoo Desert National Botanical Gardens, both at Worcester in South A frica, attests to the said primacy afforded sight and hearing as external senses. Cultural determinations of sensory perception are, furthermore, often expressed in the stereotyping and "thereotyping" of cognition (cf. Rowland 1984), specifically - and usually in negative ways - concerning cognition by the visually impaired. Research has, however, revealed that persons who have to make do without sight, often tend to develop remarkable dexterity in utilising the other external sensory abilities (hearing, touch, smell, taste), while lending varying primacy to these in accordance with situational changes (Rowland 1984). Tactile perception plays an important role in such persons' exploration of objects and spaces, and movement of the body and the limbs tends to characterise their perceptual engagement (Rowland 1984). "Analogies in sense perception" (Keller 1908), or synesthetic compoundings of sensory experience (Kalla & Van Schalkwyk 2009), constitute another strategy employed by the visually impaired in transcending the limitations they have to deal with. More recently, in accordance with a "sensory turn" in scholarship (Pink 2013:261), scientific research has been the source of growing acknowledgement that additional capacities for perception, other than the so-called extero-receptors mentioned above, are available to human beings (Rowland 1976a; Geurts 2003). Attention has increasingly been paid to intero-receptors, such as the vestibulary system (sense of balance), the interior kinaesthetic organs (like the joints and the muscles, in sensing movement) and proprioception (the sensing of position). These findings agree with views (cf. Rowland 1976a; Müller 1994) that human perception and cognition are based on our bodily experienced, or sensorially integrated, interaction with phenomena, and with the (changing) relations among the phenomena in the spaces around us. Such perceptions, and the concepts based upon them, find expression in the language symbols or image schemata (Danesi 1990) we create and employ in naming them. The manner in which the highly symbolising character of modern-day language signification caused us to experience the development of a gap and accompanying tension between sign and signified, has been explored and deliberated upon from various theoretical frameworks. In particular, the post-Freudian psycho-analytical views of Jacques Lacan on the human transition from the Imaginary Order to the Symbolic Order (cf. Grabe 2013) have proven to be of relevance in analysing the manifestation of sense perception in four of the poems included in the said Byderhand installations: "The return" by Diana Ferrus, "Karoo dance" by Pieter Hugo, "The house where I live" by William Rowland (who was blinded at the age of four) and "Semi-desert" by Jacques Coetzee (who was born blind). In addition to a wealth of (varying) sensory manifestations, and the implications thereof for meaningful interaction with phenomena and place, what has transpired as a shared motif in the four poems discussed, is the expression - again: in a variety of ways - of a longing for authentic sensory (re-)experience (and, consequently, renewed comprehension) of natural phenomena. In all four poems, this desire is expressed in terms of a reaching at, or an (imagined) bodily advance towards, the surrounding Karoo landscape and the objects present in it. Following the discussion ofthe poems, it also becomes clear that such interaction concerns the rendered experiences of both the visually impaired and those not characterised by such an impairment. One may conclude that, apparently, a universal human need is voiced in this regard, constituting an effort at countering the effects of "intellectuality and materialistic abstraction" in modern society, namely by means of "immediate, aesthetic experiencing of [...] all the things that have been reasoned away" (Van Wyk Louw 1959). In her study on Culture and the Senses, Geurts (2003) warns that, in considering the cultural determination of our sensorial perception, we should take heed not to underestimate the possibilities and uniqueness of embodied experiences, including those of the impaired. The positioning of the Byderhand installations at Worcester, within the spaces and next to the objects the poets are writing about in their poems (that is: the emplacement ofthe verbal artworks), represents an endeavour to stimulate an aesthetic experience by means of a variety of sensory perceptions. It is the wish of the Byderhand project leaders, who could only make the said poem installations a reality in cooperation with local role players, that reading the poems, or listening to recorded readings of them, will inspire visitors to the installations to undertake their own, unique and embodied experiences of those surroundings and of the phenomena therein. This wish would appear to be shared by the persons whose poems are quoted and discussed in this article.
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- 2020
196. Magnetic fabric and modeled strain distribution in the head of a nested granite diapir, the Melechov pluton, Bohemian Massif.
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Trubač, Jakub, Žák, Jiří, Chlupáčová, Marta, and Janoušek, Vojtĕch
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MAGNETIC properties of rocks , *DIAPIRS , *STRUCTURAL geology , *MAGNETIC susceptibility measurement , *EMPLACEMENT (Geology) - Abstract
The Melechov pluton, Bohemian Massif, is interpreted as a mid-crustal nested granitic diapir with an apical part exposed at the present-day erosion level. The diapir head exhibits a concentric structure defined by lithologic zoning and by the anisotropy of magnetic susceptibility (AMS). In concert with theoretical models, outward-dipping margin-parallel magnetic foliations are associated with oblate shapes of the susceptibility ellipsoids and higher degree of anisotropy, passing inward into weaker triaxial to prolate fabric. By contrast, magnetic fabric in an inner granite unit is in places oriented at a high angle to internal contacts and is interpreted as recording an internal diapir circulation. We use inverse modeling to calculate strain variations across the diapir from the AMS data. The magnetic fabric parameters and calculated strains are in agreement with strain distribution in heads of model Newtonian diapirs traveling a distance of two body radii and suggest granitic magma ascent as a crystal-poor suspension followed by crystallization of fabric markers and their response to strain near the final emplacement level. The intrusive fabric thus formed late but, though generally weak, was still capable of recording incremental strain gradient in the granite diapir. [ABSTRACT FROM AUTHOR]
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- 2014
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197. Knowing and teaching kinaesthetic experience in skateboarding: an example of sensory emplacement.
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Bäckström, Åsa
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MUSCULAR sense , *SKATEBOARDING , *SENSES , *THEORY of knowledge , *TEACHING , *LEARNING , *EXPERIENCE , *MIND & body - Abstract
The body has become a vital research object in several disciplines in recent years. Indeed, in the social sciences and humanities, a corporeal turn in which embodiment has become a key concept related to learning and socialisation is discussed. This cross-disciplinary paper addresses the epistemological question of how we know what we know and theoretically and empirically contributes to current arguments of a shift from embodiment to emplacement. In other words, this study strives for understanding of the intersection of mind, body and place through a focus on how bodily knowing is formed as part of a moving world. The purpose of the paper is to explore the kinaesthetic experience as bodily knowing in emplaced semi-formal teaching. Through long-term ethnography in a Swedish skateboard setting and in-depth analysis of digital visual material, this paper demonstrates how kinaesthetic experience might be viewed as knowing and how a particular type of this experience might be interpreted as explosiveness and, as such, an act of physical remembrance and energy transformation. Knowing is formed along paths of movement and rhythm, and kinaesthesia is identified as a multisensory experience. It is argued that a fruitful way of bridging the mind–body divide is to view the body as un/knowing, rendering it both knowing and not knowing simultaneously. Moreover, emplaced via its senses in a sociocultural and spatio-temporal environment, this conceptualisation of a moving body in a moving world might allow for re-thinking regarding how a body in context knows, teaches and, possibly, learns. [ABSTRACT FROM PUBLISHER]
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- 2014
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198. “It’s a place to climb”: place meanings of indoor rock climbing facilities.
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Kulczycki, Cory and Hinch, Tom
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Copyright of Leisure/Loisir: Journal of the Canadian Association for Leisure Studies is the property of Routledge and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2014
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199. Biographical Narratives of Encounter: The Significance of Mobility and Emplacement in Shaping Attitudes towards Difference.
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Valentine, Gill and Sadgrove, Joanna
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URBAN studies , *PREJUDICES , *MINORITIES , *SOCIAL change , *SOCIAL groups , *ETHICS , *SOCIAL mobility - Abstract
This paper is located within work in urban studies about the significance of contact with difference as a means for reducing prejudice and achieving social change. Recent approaches, influenced by theories of affect, have emphasised non-conscious everyday negotiations of difference in the city. In this paper it is argued that such approaches lose sight of the significance of the subject: of the reflective judgements of ‘others’ made by individuals; of our ability to make decisions around the control of our feelings and identifications; and of the significance of personal pasts and collective histories in shaping the ways we perceive and react to encounters. Rather, this paper uses a biographical approach focusing on interviewees’ narratives of encounter. Through its attention to processes of mobility and emplacement, it contributes to debates about when contact with difference matters by highlighting the importance of everyday social normativities in the production of moral dispositions. [ABSTRACT FROM PUBLISHER]
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- 2014
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200. Pluton assembly and the genesis of granitic magmas: Insights from the GIC pluton in cross section, Sierra Nevada Batholith, California.
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Putirka, Keith D., Canchola, Joe, Rash, Jeffrey, Smith, Oscar, Torrez, Gerardo, Paterson, Scott R., and Ducea, Mihai N.
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IGNEOUS intrusions , *MAGMAS , *GRANITE , *SEDIMENTARY rocks , *ROCK analysis - Abstract
The ~151 Ma Guadalupe Igneous Complex (GIC) is a tilted, bi-modal intrusion that provides a rare view into the deeper, mantle-derived portions of a granitic pluton. Major oxide relationships show that GIC granitic rocks formed by in situ differentiation. Assimilation of sedimentary country rock is precluded, as GIC alumina saturation indices (ASI) are too low by comparison, while TiO2 and P2O5 contents disallow partial melting of metavolcanic lower/middle crust. In contrast, Rb-Sr systematics support in situ magmatic differentiation, as unaltered GIC whole rock samples fall on a single 151 Ma isochron (initial 87Sr/86Sr = 0.7036) matching zircon age dates (Saleeby et al. 1989). Crystal/liquid segregation, though, was not continuous: mafic and felsic samples form discordant compositional trends, with a gap between 60-66% SiO2. We posit that crystal/liquid segregation is continuous between 50-60% SiO2, and leads to the genesis of intermediate composition liquids that are then too viscous to allow further continuous liquid segregation. Further crystal/liquid separation thereafter occurs discontinuously (at F ≈ 45-50%), to yield a mafic crystalline (52-59% SiO2) residue and a silicic (70-75% SiO2) liquid (Bachmann and Bergantz 2004), which are, respectively, preserved in the Meladiorite and Granite/Granophyre units of the GIC. Outcrops in the gabbroic section support this view, where mafic crystalline layers feed directly into granitic dikes, and intermediate compositions are absent; mass balance calculations at the outcrop scale also support this model. It is unclear, though, to what extent this model applies to larger Sierran plutons; the smaller GIC may represent an end-member process, where rapid cooling limits mixing, due to rapid increases in mafic/felsic melt viscosity contrasts [ABSTRACT FROM AUTHOR]
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- 2014
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