Gymnasielärares skrivpraktiker : Skrivande som professionell handling i en digitaliserad skola

The aim of this thesis is to contribute to deeper knowledge about the writing practices of teachers in upper secondary school. Schools are under constant pressure to respond to the needs and expectations of an ever-changing society and political intentions. A major factor in this change which is taking place in schools is digitalization. Another factor is the adoption of new governing principles for schools involving management by goals and results, which brings increased demands for written documentation of teachers' work. In order to describe and problematize this development the thesis is based on a combination of Critical Discourse Analysis and New Literacy (Clark and Ivanič, 1997). The theoretical framework rests upon an understanding of writing as social action and the idea that texts both affect and are affected by the social environment. The empirical study focuses on twelve teachers and their writing practices, analyzed during week-long field visits over three years. The teachers' talk about their writing is used together with analyses of texts and images to investigate parts of teachers' writing which, according to the teachers, are considered complex and problematic. The findings indicate significant differences between the writing practices of the individual teachers, where each teacher has his or her own system of texts fulfilling different purposes. Despite these differences it is still possible to identify recurrent themes in the discursive conditions for teachers' writing: efficiency, reuse, authority, audit, relationships to addressees, and room to maneuver. The study illustrates possible dilemmas for teachers' writing at the intersection of teachers' professional responsibility and demands for accountability.

Characterization of residential chimney conditions for flue gas flow measurements

A literature survey and a theoretical study were performed to characterize residential chimney conditions for flue gas flow measurements. The focus is on Pitot-static probes to give sufficient basis for the development and calibration of a velocity pressure averaging probe suitable for the continuous dynamic (i.e. non steady state) measurement of the low flow velocities present in residential chimneys. The flow conditions do not meet the requirements set in ISO 10780 and ISO 3966 for Pitot-static probe measurements, and the methods and their uncertainties are not valid. The flow velocities in residential chimneys from a heating boiler under normal operating condi-tions are shown to be so low that they in some conditions result in voiding the assumptions of non-viscous fluid justifying the use of the quadratic Bernoulli equation. A non-linear Reynolds number dependent calibration coefficient that is correcting for the viscous effects is needed to avoid significant measurement errors. The wide range of flow velocity during normal boiler operation also results in the flow type changing from laminar, across the laminar to turbulent transition region, to fully turbulent flow, resulting in significant changes of the velocity profile during dynamic measurements. In addition, the short duct lengths (and changes of flow direction and duct shape) used in practice are shown to result in that the measurements are done in the hydrodynamic entrance region where the flow velocity profiles most likely are neither symmetrical nor fully developed. A measurement method insensitive to velocity profile changes is thus needed, if the flow velocity profile cannot otherwise be determined or predicted with reasonable accuracy for the whole measurement range. Because of particulate matter and condensing fluids in the flue gas it is beneficial if the probe can be constructed so that it can easily be taken out for cleaning, and equipped with a locking mechanism to always ensure the same alignment in the duct without affecting the calibration. The literature implies that there may be a significant time lag in the measurements of low flow rates due to viscous effects in the internal impact pressure passages of Pitot probes, and the significance in the discussed application should be studied experimentally. The measured differential pressures from Pitot-static probes in residential chimney flows are so low that the calibration and given uncertainties of commercially available pressure transducers are not adequate. The pressure transducers should be calibrated specifically for the application, preferably in combination with the probe, and the significance of all different error sources should be investigated carefully. Care should be taken also with the temperature measurement, e.g. with averaging of several sensors, as significant temperature gradients may be present in flue gas ducts.

I Stormens Öga : En kvalitativ studie inspirerad av grundad teori, om väntade förändringar inom elitidrottsföreningar

Adapt or die. En omvärld i ständig rörelse ställer högre krav än någonsin på organisationer att utveckla sitt förändringsarbete och sättet man ser på förändringar, något som lett till att fenomenet "organisationsförändringar" blivit ett fokusområde för organisationsforskare. Inom denna forskning framhävs inte sällan vikten av att ta ställning till hur anställda tar emot, och påverkas av, detta förändringsarbete. En typ av förändringar som dock förblivit outforskade är väntade förändringar, förändringar där de anställda vet att en förändring kan komma att ske men inte när eller hur den kommer ske. Inom idrotten återfinns en viss typ av organisationer, elitidrottsföreningar, som ställs inför väntade förändringar med jämna mellanrum. Dessa situationer uppkommer när föreningarna omplaceras i det standardiserade seriesystem som återfinns i Sverige och ställs inför kraftigt omväxlande ekonomiska förutsättningar. För att kunna hantera denna osäkerhet förutsätts att organisationen konstant står redo att genomföra omvälvande förändringar, enbart baserat på föreningens sportsliga resultat. Syftet med uppsatsen är att skapa en förståelse för de anställdas reaktioner vid situationer av omplacering och väntad förändring. För att uppnå syftet utgick uppsatsen ifrån bristen på forskning och sökte, med hjälp av metoden Grundad teori, producera en serie väl underbyggda frågeställningar baserade i studiens fynd. Frågeställningarna producerades sedan via fyra semi-strukturerade intervjuer inom två olika elitidrottsföreningar. Resultatet visar på att en utbredd acceptans för väntade förändringar återfinns hos anställda inom elitidrottsföreningar. Uppsatsens fynd grundades i data från respondenterna och sammanställdes via en resultatmodell innehållandes en kärnkategori och fyra underkategorier. Uppsatsen erbjuder således, via metodvalet, en nyproducerad infallsvinkel på en situation som många organisationer inom idrotten – men även utanför – kan komma att ställas inför.