Facebook är idag världens största sociala nätverk och är även den sociala plattform som visat sig vara populärast bland studenter. Syftet med denna studie är att ge en inblick i hur dagens generation studenter använder sig av Facebook i relation till sin utbildning. Studien riktar sig till den högre utbildningen och har avgränsats till att belysa hur studenter från det systemvetenskapliga programmet och juristprogrammet har tillämpat användandet av Facebook. En fallstudie med kvalitativa metoder genomfördes där 9 individuella intervjuer har gjorts. Tidigare forskningsresultat inom samma ämnesområde tillsammans med teoretiska utgångspunkter utgjorde grunden för analysen. Detta analyserades sedan i relation till det intervjumaterial som samlats in. Befintliga teorier har kunnat testats och tolkats i relation till intervjumaterialet. Studien resulterade i en riklig beskrivning kring hur studenter använder Facebook och den inverkan användandet kan ha. Studenter samarbetar, utbyter information och delar med sig av sina färdigheter från deras erfarenheter till varandra. Studenterna kan på så vis ta till sig informellt lärande som bidrar till den formella utbildningen och underlätta studiearbetet hemifrån. Resultatet som framkom från denna studie återspeglar och styrker även resultat från tidigare undersökningar som gjorts inom samma ämnesområde. / Facebook is today the world's largest social network and is also the platform that has proved to be the most popular among students. The purpose of this study is therefore to provide an insight into how today's generation of students use Facebook in relation to their education. The research question addressed how students in Sweden who study the system science program and the law program have used Facebook in their education. A case study with a total of nine interviews were conducted. Previous research results in the same subject area and theoretical starting points provided the basis for the analysis and were analysed in relation to the interview material. Existing theories have been tested and interpreted in relation to the interview material. The result of the study provided a deeper insight into how students use Facebook and the impact the use may have. Students collaborate, exchange information and share their skills from their experiences to each other and can through interaction with their classmates on Facebook, take on informal learning which contributes to the formal education as well as it can facilitate theirs studies from home. Several of the results obtained from this study reflect and support the results of previous studies.

Few studies have focused on how learning takes place in physical education and health (PEH) practices, and even more so in relation to artifact use. Dance is a core content in the Swedish curriculum, but according to previous research it nevertheless rarely occurs in practice due to many teachers’ lack of knowledge. Movement qualities are something that students are supposed to develop in the subject, where dance can be used as a form of activity. The aim of the licentiate thesis is to examine students’ use and development of different movement qualities in a learning process where dance exergames are used as teaching aids in the PEH practice in upper secondary school. The research questions in the study are: (1) what kind of movement qualities do students use when they interact with each other and with dance exergames, and (2) how does the learning of movement qualities occur when dance exergames are used as teaching aids? A series of seven PEH-lessons were designed. Four of the lesson had a spe-cific purpose, such as working with rhythm and coordination where the exergames Nintendo Wii Just Dance 3 and 4 were used as teaching aids. In two other lessons the students worked in groups to create their own dances, and as a final goal, at lesson seven, the groups presented their dances. All the lessons were video recorded. A framework inspired by Laban’s movement analysis was used to analyze the students’ movement qualities, based on four aspects: body, space, effort and relationship. To be able to analyze the students, the dance exergames and the context as a whole, the study involved a socio-cultural ap-proach to learning. Learning situations in the ongoing practice were also ana-lyzed, where learning was investigated as something that occurs through inter-actions between students and between students and artifacts. The results show a way to describe students’ movement qualities, which con-tribute to PEH-teachers language of knowledge in movement. The results also demonstrate that learning occurred through imitation, repetition, communica-tion, negotiation, practice, modeling, instruction and using metaphors. A con-clusion is that students’ use and development of movement qualities do not depend on the use of the dance exergames per se, instead it depends on how the dance exergames are used in PEH practice. / Forskningslinjen Utbildning

The need for reliable and cost-effective testing procedures for Additive Manufacturing (AM) is growing. In this Dissertation, the development of a new computational-experimental method based on the realization of specific testing artifacts to address this need is presented. This research is focused on one of the widely utilized AM technologies, Fused Deposition Modeling (FDM), and can be extended to other AM technologies as well. In this method, testing artifacts are designed with simplified boundary conditions and computational domains that minimize uncertainties in the analyses. Testing artifacts are a combination of thin and thick cantilever structures, which allow measurement of natural frequencies, mode shapes, and dimensions as well as distortions and deformations. We apply Optical Non-Destructive Testing (ONDT) together with computational methods on the testing artifacts to predict their natural frequencies, thermal flow, mechanical properties, and distortions as a function of 3D printing parameters. The complementary application of experiments and simulations on 3D printed testing artifacts allows us to systematically investigate the density, porosity, moduli of elasticity, and Poisson’s ratios for both isotropic and orthotropic material properties to better understand relationships between these characteristics and the selected printing parameters. The method can also be adapted for distortions and residual stresses analyses. We optimally collect data using a design of experiments technique that is based on regression models, which yields statistically significant data with a reduced number of iterations. Analyses of variance of these data highlight the complexity and multifaceted effects of different process parameters and their influences on 3D printed part performance. We learned that the layer thickness is the most significant parameter that drives both density and elastic moduli. We also observed and defined the interactions among density, elastic moduli, and Poisson’s ratios with printing speed, extruder temperature, fan speed, bed temperature, and layer thickness quantitatively. This Dissertation also shows that by effectively combining ONDT and computational methods, it is possible to achieve greater understanding of the multiphysics that governs FDM. Such understanding can be used to estimate the physical and mechanical properties of 3D printed components, deliver part with improved quality, and minimize distortions and/or residual stresses to help realize functional components.

Work deals with methods of calibration of multi-center study of magnetic resonance imaging. Magnetic resonance is the phenomenon of the substance in a magnetic field of induction B0 delivers energy in the form of RF pulse with the Larmor frequency and thus to excite particles to higher energy levels. Calibration can be performed using the distinctive and homogeneous RF phantoms. Furthermore, we can perform calibration using image registration. To calibrate the images by registering the work described in the classical linear (affine) and nonlinear. Listed below are the simulators, which are also useful for modeling various artifacts.

The need for reliable and cost-effective testing procedures for Additive Manufacturing (AM) is growing. In this Dissertation, the development of a new computational-experimental method based on the realization of specific testing artifacts to address this need is presented. This research is focused on one of the widely utilized AM technologies, Fused Deposition Modeling (FDM), and can be extended to other AM technologies as well. In this method, testing artifacts are designed with simplified boundary conditions and computational domains that minimize uncertainties in the analyses. Testing artifacts are a combination of thin and thick cantilever structures, which allow measurement of natural frequencies, mode shapes, and dimensions as well as distortions and deformations. We apply Optical Non-Destructive Testing (ONDT) together with computational methods on the testing artifacts to predict their natural frequencies, thermal flow, mechanical properties, and distortions as a function of 3D printing parameters. The complementary application of experiments and simulations on 3D printed testing artifacts allows us to systematically investigate the density, porosity, moduli of elasticity, and Poisson’s ratios for both isotropic and orthotropic material properties to better understand relationships between these characteristics and the selected printing parameters. The method can also be adapted for distortions and residual stresses analyses. We optimally collect data using a design of experiments technique that is based on regression models, which yields statistically significant data with a reduced number of iterations. Analyses of variance of these data highlight the complexity and multifaceted effects of different process parameters and their influences on 3D printed part performance. We learned that the layer thickness is the most significant parameter that drives both density and elastic moduli. We also observed and defined the interactions among density, elastic moduli, and Poisson’s ratios with printing speed, extruder temperature, fan speed, bed temperature, and layer thickness quantitatively. This Dissertation also shows that by effectively combining ONDT and computational methods, it is possible to achieve greater understanding of the multiphysics that governs FDM. Such understanding can be used to estimate the physical and mechanical properties of 3D printed components, deliver part with improved quality, and minimize distortions and/or residual stresses to help realize functional components.

Could it be that even though no international treaty or regulation regulates bioprospecting in Antarctica, some features of the techno-science of bioprospecting already lie embedded in the deep texts of the potentially most relevant treaties and regulations? If so, international law already to that extent comprehends the phenomenon, making for sustainable governance and thereby sustainable development. To find out, first an ontology of bioprospecting was synthesized, by an activity theory based conceptual system modeling (CSM). Treating bioprospecting as an activity of search for and research of naturally occurring biota, a set of Conceptual Graphs and associated Tables were drawn up as its ontology-synthesis. Features of this conceptualization were then searched for by an ontological-analysis of the deep texts of selected twenty-five legal instruments, through an ontological legal research (OLR). Search results did unearth several features dispersed and intriguingly embedded in several of the treaties and regulations, quite richly in some of the more recent ones. The cross-application of CSM followed by the hybridized OLR, is a methodological innovation and the generated empirical results of each are resources for further research. The language of international law is revealed as possessing a surprisingly better-than-expected techno-scientific literacy of bioprospecting.

aus dem INhalt: 'Das Konzept Nachhaltigkeit hält Einzug in alle Lebensbereiche und wird zur Bedingung von Zukunftsszenarien aller Art. Am eindrücklichsten lässt sich das Thema im Design am Phänomen Müll vermitteln. Die gemeinsame Auseinandersetzung mit dem Entwerfen und Wegwerfen von Artefakten ist wegweisend für ein Nachhaltiges Design. Müll ist dabei ein gesellschaftliches und organisationales Konzept, und eine physische Erscheinung, welche ich nutze, um Nachhaltigkeit im Design zu vermitteln. Müll wird bisher im Design vornehmlich als ein technologisches Problem behandelt.

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