1,060 research outputs found

    Examining Tacit Exchange, Embedded Within Socially Shared Hand-Stitching Practices, With The Shipibo Artists Of Peru

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    This exegesis reflexively examines the role of the tacit in my intercultural creative exchange with a number of the Shipibo artists of Peru. Central to the research was a three month residency spent in Peru with these artists. The research reflexively examines the impact of the residency on my creative praxis. In particular, the research explores how the process of hand-stitching, embedded within the day to day lifeworld, can offer a space for such intercultural exchange. Furthermore, the research focuses on the shared hand-stitching practices as part of a socially communicative process. This creative exchange is placed in the social and public space of a western art gallery to facilitate a broader critique with an audience regarding concepts such as the tacit, and the role of creative, intercultural exchange. This creative research uses the methods of praxis and reflexivity as a way for my art practice to be critically situated among relevant theorists, artists and associated ideas. Two lenses are adopted to examine the creative praxis. The first is the tacit and how it locates the ineffable creative exchange between artists within an intercultural context. The second draws on critical theory, proposing the concept of reflexivity as a means for examining our shared hand—stitching practices. In particular it focuses on questions concerning the tacit, intercultural exchange facilitated by shared hand-stitching practices between us, as artists situated within a post-traditional, globalised world

    High resolution stable isotope analysis of a Tasmanian speleothem

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    High resolution oxygen and carbon isotope analyses of part of a uniform diameter stalagmite from a cave in northern Tasmania have been used to study the climatic transition from stadial to interstadial conditions during the early Last Glacial (109-95 ka). A significant change in oxygen isotope values suggests that temperature warmed rapidly by approximately 2°-3°C between 100 and 97 ka. A decrease in carbon isotope values between 101 and 98 ka indicates that moisture availability was increasing slightly in advance of rising temperature

    Topological characterization of rearrangements in amorphous solids

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    In amorphous materials, plasticity is localized and occurs as shear transformations. It was recently shown by Wu et al. that these shear transformations can be predicted by applying topological defect concepts developed for liquid crystals to an analysis of vibrational eigenmodes [Wu et al.; Nat. Com.,2023]. This study relates the -1 topological defects to the displacement fields expected of an Eshelby inclusion, which are characterized by an orientation and the magnitude of the eigenstrain. A corresponding orientation and magnitude can be defined for each defect using the local displacement field around each defect. These parameters characterize the plastic stress relaxation associated with the local structural rearrangement and can be extracted using the fit to either the global displacement field or the local field. Both methods provide a reasonable estimation of the MD-measured stress drop, confirming the localized nature of the displacements that control both long-range deformation and stress relaxation

    Evaluation des effets analgésiques du meloxicam après des chirurgies orthopédiques chez le pigeon (Columba livia)

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    L’évaluation de la douleur chez les oiseaux est difficile, puisque la plupart se comportent comme des proies et ont tendance à masquer tout signe extérieur de douleur. Les doses et les drogues utilisées pour traiter la douleur des oiseaux sont la plupart du temps basées sur une extrapolation d’autres espèces, ainsi que sur l’expérience clinique. Peu d’études de pharmacocinétique, d’efficacité et de toxicité sont disponibles dans la littérature. La plupart des études rapportées utilisent des stimuli nociceptifs éloignés des douleurs cliniques, comme les stimuli électriques ou thermiques, qui sont difficilement extrapolables à des situations rencontrées en pratique. L’objectif de notre projet était d’évaluer les effets analgésiques de deux doses de meloxicam chez le pigeon à l’aide d‘un modèle de fracture du fémur. La douleur post-opératoire a été évaluée pendant les quatre premiers jours suivant la chirurgie par trois méthodes : le suivi du poids porté sur la patte opérée comparativement à l’autre patte, quatre différentes échelles descriptives de douleur et la réalisation d’éthogrammes à l’aide d’enregistrements vidéo. L’administration de 0,5 mg/kg PO q12h de meloxicam n’a pas permis de réduire significativement les indicateurs de douleur mesurés comparativement à un groupe témoin recevant de la saline. Les pigeons ayant reçu 2 mg/kg PO q12h de meloxicam ont montré une réduction significative des indicateurs de douleur mesurés par les différentes méthodes. Nos résultats suggèrent que l’administration de 2 mg/kg PO q12h aux pigeons suite à une chirurgie orthopédique procure une analgésie supérieure aux doses actuellement recommandées dans la littérature.Pain assessment is especially difficult in avian species, since many birds behave as prey and do not show any external signs of distress. Choice of drugs and dosages used in clinical practice are most of the time based on extrapolation from other species and clinical experience. Few pharmacokinetic, efficacy or toxicity research studies are available in the literature. Most of these studies used noxious stimuli, such as electric or thermal stimuli, and results are therefore difficult to extrapolate to clinical pain. The objective of our project was to study the analgesic efficacy of two dosages of meloxicam in pigeons, using a femoral fracture pain model. Postoperative pain was assessed during the first four postoperative days by three different methods: weight bearing load on the fractured limb versus the controlateral limb, four different descriptive pain scales and ethogram realization based on video recordings. Administration of 0.5 mg/kg PO q12h of meloxicam did not show any reduction in the measured level of pain compared to the control group that received saline. However, pigeons that received 2 mg/kg PO q12h showed a significant decrease in their pain levels, with the three different pain assessment methods. Our results suggest that 2 mg/kg can provide a superior level of analgesia compared to the dosages recommended in the current literature, for pigeons that have undergone an orthopedic surgery

    Scarf osteotomy versus metatarsophalangeal arthrodesis in forefoot first ray disorders: Comparison of functional outcomes

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    SummaryIntroductionScarf osteotomies of the first metatarsal and metatarsophalangeal arthrodesis are the two most frequent surgical forefoot reconstructive procedures.HypothesisWe compared functional results of isolated arthrodesis of the first metatarsophalangeal joint with an isolated Scarf osteotomy of the first metatarsal.Materials and methodsThis was a retrospective, observational, continuous study of patients operated between 1993 and 2008. After patients who had undergone a procedure on the lateral rays, extremely elderly patients, lost to follow-up patients and those with incomplete questionnaires had been excluded, there remained two comparable groups of 25 patients. Mean age was 60 in the arthrodesis group [41–70] and 59.8 in the Scarf group [47–71]. The Scarf group included 25 hallux valgus (100%) compared to 16 hallux valgus (64%) and nine hallux rigidus (36%) in the arthrodesis group. Complications were recorded. Evaluation of functional results was based on the most recent functional or quality of life scores (AOFAS, FFI, FAAM, SF 36) and a questionnaire on physical and athletic ability.ResultsThere was no significant difference in the rate of complications between the two groups. There was no difference in pain according to the AOFAS score with 35.6/40 (±6.5) in the Scarf group and 34.5 (±5.9) in the arthrodesis group. Global satisfaction was also similar between the Scarf and arthrodesis groups: 91.4% and 90% of very satisfied or satisfied patients, respectively. The FFI score was higher in the Scarf group than in the arthrodesis group: 8.6 (±20.1) and 19.8 (±17.7) respectively. Functional results were better in the Scarf group than in the arthrodesis group with a FAAM Daily Activity score of 80.2 (±12.1) compared to 68 (±7.2), a FAAM Sports Activity score of 29.7 (±6.7) compared to 25.2 (±7.6) and a FAAM Global Function score of 94% (±10.8) compared to 87% (±15.7), respectively. The Global SF36 score was higher in the Scarf group than in the arthrodesis group: 70.9% (±14.1) and 62.3% (±20.6) respectively, which was due to a higher Mental Health score in the Scarf group: 68.7% (±14.2) and 60.4% (±19.3) respectively. In the area of sports activities the Scarf group practiced more hiking than the arthrodesis group (74% versus 42% respectively). There was no difference for other activities.Discussion and conclusionThis study provides detailed information on the level of physical and sports activities that are practiced following these procedures, so that the patient can be better informed.Level of evidenceLevel III. Comparative retrospective

    Whose knowledge?: Science education, Indigenous knowledges and teacher praxis

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    This study investigated how a group of secondary school science teachers considered the implementation of a Cross-Curriculum Priority that mandated the inclusion of Aboriginal and Torres Strait Islander histories and cultures in all learning areas. The inclusion of Indigenous content and perspectives, as a way of promoting intercultural understanding, has been advocated in the Australian context for some time. However, classroom implementation has been lacking with teachers feeling unsure about how to satisfy these curriculum initiatives. With the introduction of the new (national) Australian Curriculum such content and perspectives were mandated. This context enabled an exploration of science teachers’ responses to the Cross-Curriculum Priority as they attempted to translate the intent of the curriculum into classroom practice. The investigation took place through a collaborative and collegial approach using Participatory Action Research. A group of five teachers from different schools proceeded through cycles of inquiry, action and reflection framed by the curriculum requirements. Across the participant group these cycles operated asynchronously as the individual teacher participants had to negotiate their schooling contexts while still being guided by group participation. The teacher participants’ needs and perspectives directed the topics of discussion and progress of the cycles. Advice and guidance around cultural sensitivities inherent in the research were given by three Critical Friends of the project, who all self-identified as Aboriginal people. A bricolage approach was taken to data collection allowing the capture of the experiences of the participants through interviews, group meetings, one-on-one discussions with the researcher, documentary analysis and observation of classroom activities. Data were analysed using a critical theory and pedagogy lens. The study showed that teachers approached the Cross-Curriculum Priority with a hope that it would lead to socially just learning opportunities for both Indigenous and non-Indigenous students. Teacher participants took different approaches to implementing lessons in the science classroom and not all of them implemented classroom activities with Indigenous content or perspectives. The study found that the approach and classroom implementation taken by teachers are related to their epistemological, pedagogical and political positioning. The neo-liberal context of the Australian schooling system was also found to confine and constrain teachers’ efforts in classroom implementation. The study recommends that all of these interconnected factors need to be considered in understanding how teachers engage with such a curriculum innovation. The findings of this study will assist in moving beyond the rhetoric around such curriculum initiatives towards practical implementation of science education inclusive of Indigenous knowledges and perspectives in classrooms

    Roselyn Koren et Ruth Amossy (dir.), Après Perelman : quelles politiques pour les nouvelles rhétoriques ?

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    Ce livre-bilan sera l’occasion, pour beaucoup de linguistes, de découvrir tout d’abord le visage de Chaïm Perelman. Cet auteur si souvent cité depuis la première parution en 1958 du Traité de l’argumentation et décédé en 1984, n’a jamais connu la médiatisation d’un Bourdieu ou d’un Hagège. Et pourtant, si depuis 50 ans « la rhétorique renait de ses cendres », pour reprendre le titre prémonitoire d’un article écrit en 1938 par Jean Paulhan, hommage doit en être rendu à Perelman qui le premier ..

    Claire Oger, Caroline Ollivier-Yaniv, Marie-Anne Paveau, Discours militaire sur les médias, Langage & société, 94, décembre 2000, Paris, Maison des Sciences de l’Homme.

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    La « grande muette » doit parler d’une seule voix. Tel pourrait être le fil conducteur de ce numéro de Langage & société, consacré aux Discours militaires sur les médias. C. Oger, dans le premier article intitulé « De l’esprit de corps au corps du texte : cohésion militaire et dissolution journalistique » met en évidence le parallèle existant entre la Méthode de Raisonnement Tactique applicable sur le terrain d’opérations militaires et une Méthode de Raisonnement Général, applicable en toute ..

    Francesca Cabasino, Formes et enjeux du débat public, Discours parlementaire et immigration

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    Francesca Cabasino est professeure de français à l’Université de Rome « La Sapienza », Faculté de Sciences politiques. Elle consacre ses recherches à la pragmatique de l’énonciation et à l’argumentation dans le discours politique. À partir de la notion de « polylogue différé », elle se propose de caractériser le débat parlementaire. « La nature particulière de l’échange parlementaire met en relation une pluralité d’acteurs, mais on ne peut pas dire qu’une véritable interaction ait lieu. En ef..
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