6,310 research outputs found

    An auto/biographical, cooperative study of ourrelationships to knowing

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    In this thesis, I explore the relationship between knowing and self-construction among education professionals. The work addresses questions about our relationship with different ways of knowing; and within what I term a psychosocial framework, how the road to selfhood may lie in integrating different ways of knowing, including the rational, emotional, imaginal, embodied, creative, and spiritual. It also questions the tendency to idealize ‘experts’ and disembodied forms of knowledge that are widespread in (higher) education, and even in social and therapeutic work. Auto/biographically oriented co-operative inquiry was my chosen methodology. The research involved two groups of co-researchers based in two different countries, and included interviews with members of my own family. Exploration of my own reflexive relationship with my object of study shaped it into a quest for meaning and voice. I composed a multi-layered, multimedia, performative and circular textual understanding via processes of ‘spiralling’ and unfolding that were solidly rooted in a constructivist epistemology. I analysed both individual and group processes in the co-operative inquiry, looking at metaphors and engaging with crises of knowing and self to produce a fresh perspective on transformative research and professional becoming. I also drew on the ‘writing as inquiry’ approach to intertwine myself as knower with my interpretation, thus constantly interrogating the role of prose and poetic writing in pursuing authenticity and selfhood in relation to knowledge. In addition, I explored the evocative use of ‘cultural objects’ as a strategy for integrating subjective and objective sources of knowing. I conclude my dissertation by offering what has provisionally become – for me as author – a satisfying theory. Taking a view of the self as contingent, developmental and potentially agentic, I claim that by engaging more holistically with feeling, emotion, intuition, imagination and intellect, we may come to experience ourselves as more ‘real’ and integrated knowers

    Towards a Virtuosity of School Leadership: clinical support and supervision as professional learning

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    This paper introduces an innovative clinical support and supervision project that has its origins in the concern for how senior school leaders are increasingly being expected to manage the escalating demand to care for pupils, families and often the wider community. In response to these pressures we offer a three-stage professional learning model of supervision which encompasses collaboration, reflection and dialogue, while facilitating the development of professional skills within a non-judgmental space for personal and professional reflexivity. Alongside providing the service, the authors undertook two phases of qualitative research over a five-year period. Our findings indicate that support and supervision has been wholly beneficial identifying a positive impact across three broad themes: Professional learning, health and well-being, and wider school culture. The process facilitates headteachers making professionally situated decisions grounded in an understanding of educational purpose. We call for a virtuosity of school leadership – a practice of educational leadership where decision-making is informed by good educational judgments and not by standardisation and punitive accountability measures. Distinctively, clinical support and supervision promotes a virtuosity of school leadership while also meeting the moral obligation to care for school leaders and in doing so those in their care

    Observations and modelling of soil slip-debris flow initiation processes in pyroclastic deposits: the Sarno 1998 event

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    International audiencePyroclastic soils mantling a wide area of the Campanian Apennines are subjected to recurrent instability phenomena. This study analyses the 5 and 6 May 1998 event which affected the Pizzo d'Alvano (Campania, southern Italy). More than 400 slides affecting shallow pyroclastic deposits were triggered by intense and prolonged but not extreme rainfall. Landslides affected the pyroclastic deposits that cover the steep calcareous ridges and are soil slip-debris flows and rapid mudflows. About 30 main channels were deeply scoured by flows which reached the alluvial fans depositing up to 400 000 m3 of material in the piedmont areas. About 75% of the landslides are associated with morphological discontinuities such as limestone cliffs and roads. The sliding surface is located within the pyroclastic cover, generally at the base of a pumice layer. Geotechnical characterisation of pyroclastic deposits has been accomplished by laboratory and in situ tests. Numerical modelling of seepage processes and stability analyses have been run on four simplified models representing different settings observed at the source areas. Seepage modelling showed the formation of pore pressure pulses in pumice layers and the localised increase of pore pressure in correspondence of stratigraphic discontinuities as response to the rainfall event registered between 28 April and 5 May. Numerical modelling provided pore pressure values for stability analyses and pointed out critical conditions where stratigraphic or morphological discontinuities occur. This study excludes the need of a groundwater flow from the underlying bedrock toward the pyroclastic cover for instabilities to occur

    Category signaling and reputation

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    We propose that category membership can operate as a collective market signal for quality when low-quality producers face higher costs of gaining membership. The strength of membership as a collective signal increases with the sharpness of the category boundary, that is, contrast. Our empirical study focuses on biodynamic and organic viticulture in Alsace

    The use of combination therapy in pulmonary arterial hypertension: new developments

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    There is a strong clinical rationale for combination therapy in pulmonary arterial hypertension (PAH), as several pathological pathways have been implicated in its pathogenesis and no single agent has yet been shown to deliver completely satisfactory results. Registry data indicate that use of combination therapy is in fact common in existing clinical practice, even though support has been largely empirical or derived from small-scale observational studies. Data from large, adequately powered, randomised controlled trials of combination therapy in PAH are now emerging and suggest that combination therapy may be clinically beneficial. Studies of bosentan in combination with prostanoids and phosphodiesterase (PDE)-5 inhibitors show consistent evidence of improvements in exercise capacity compared with placebo. Similar improvements have been observed with PDE-5 inhibitors in combination with prostanoids. The appropriate timing of combination therapy requires further evaluation but goal-oriented therapy using combinations of oral and inhaled drugs has been shown to provide acceptable long-term results in patients with advanced PAH. Monitoring should be performed regularly and be based on repeatable, noninvasive, measurable parameters that have prognostic value

    Finite element modeling of ground deformation and gravity field at Mt. Etna

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    An elastic 3-D axi-symmetric model based on Finite Element Method (FEM) is proposed to compute ground deformation and gravity changes caused by overpressure sources in volcanic areas. The numerical computations are focused on the modeling of a complex description of Mt Etna in order to evaluate the effect of topography, medium heterogeneities and source geometries. Both ground deformation and gravity changes are investigated by solving a coupled numerical problem considering a simplified ground surface profile and a multi-layered crustal structure inferred from seismic tomography. The role of the source geometry is also explored taking into account spherical and ellipsoidal volumetric sources. The comparison between numerical results and those predicted by analytical solutions disclosed significant discrepancies. These differences constrain the applicability of simple spherical source and homogeneous half-space hypotheses, which are usually implicitly assumed when analytical solutions are applied

    A new device hypothesis for water extraction from air and basic air condition system in developing countries

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    This work proposes a new device for air treatment with dehumidification and water recovery/storage, with possible mitigation of indoor environmental conditions. The system is based on Peltier cells coupled with a horizontal earth‐to‐air heat exchanger, it is proposed as an easy‐to-implement alternative to the heat pumps and air handling units currently used on the market, in terms of cost, ease of installation, and maintenance. The process provides the water collection from the cooling of warm‐humid air through a process that leads to condensation and water vapor separation. The airflow generated by a fan splits into two dual flows that lap the two surfaces of the Peltier cells, one flow laps the cold surfaces undergoing sensible, latent cooling with dehumidification; the other flow laps the hot surfaces and heats up. The airflow undergoes thermal pre‐treatment through the underground horizontal geothermal pipe that precedes the Peltier cells. In the water storage tank, which also works as a mixing chamber, the two air streams are mixed to regulate the outlet temperature. The system can be stand‐alone if equipped with a photovoltaic panel and a micro wind turbine, able to be used in places where electricity is absent. The system, with different configurations, is modeled in the African city Kigali, in Rwanda
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