Ungdomstræneren som kulturel leder : Et multicase pilotstudie af tre træneres praksis

Formålet var at analysere, hvad der kendetegner tre ungdomstræneres praksis som kulturel ledelse, og at afprøve organisationspsykologen Edgar Scheins begrebsapparat som ramme. Data blev genereret gennem observationer og formelle interviews med trænerne. Cross-case analysen (Stake, 2006) viste bl.a., at trænerne skabte og opretholdt gruppekulturer gennem anerkendelse af bestemt adfærd og ved at fremhæve rollemodeller i gruppen. Opfattelsen af deres primære opgave og funktion som træner prægede også gruppekulturen. Scheins begrebsapparat var delvist brugbart til at analysere trænere som kulturelle ledere, men der er behov for at udvikle og kontekstualisere en undersøgelsesramme til studier af kulturel ledelse i unges idrætsmiljøer

Challenging the concept of smart doorbells by designing new interactions based on privacy

In less than a decade, smart doorbells have become a household stable, introducing a new form of surveillance cameras. But while the cameras have given a new purpose to the doorbell, they also come with an array of privacy concerns. Much critique has been given to the management of data and the effect privatesurveillance has on society. Smart doorbells have also entered the street of Amsterdam, prompting the municipality to look into how to deal with the arising privacy issues. In this project, we approach the smart doorbell on the interaction level, zooming in on the interaction between two people - the visitor and the owner - through the medium of a smart doorbell. We explore how this mediumfacilitates the interchange and how it facilitates an emerging power difference.To challenge the current design of smart doorbells, alternative smart doorbells were designed, taking a starting point in three different definitions of privacy. Each doorbell opens up for a new form of negotiation of the terms of the interaction between owner and visitor. The end result was an exhibition held inAmsterdam, where three new privacy-centric designs were displayed.At the exhibition, data was gathered about visitors’ opinions and views on the doorbells and analysed to understand better people’s values and preferences in regards to privacy in the context of smart doorbells. The result showed that speculative design exhibitions could be a valuable tool for better understandingcitizens’ values and preferences. The physical manifestations of alternative futures allowed a nuanced and concrete discussion about possible interventions. This shows how speculative design can help institutions such as Amsterdam municipality deal with emerging technologies such as the smart doorbell.Design for Interactio

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Muscle-Saturated Bioactive Lipids Are Increased with Aging and Influenced by High-Intensity Interval Training

Ceramide and diacylglycerol are linked to insulin resistance in rodents, but in humans the data are inconsistent. Insulin resistance is frequently observed with aging, but the role of ceramide and diacylglycerol is not clarified. Training improves metabolic health and, therefore, we aimed to elucidate the influence of age and high-intensity interval training (HIIT) on ceramide and diacylglycerol content in muscle. Fourteen young (33 ± 1) and 22 older (63 ± 1) overweight to obese subjects performed 6 weeks HIIT three times a week. Maximal oxygen uptake and body composition were measured and muscle biopsies and fasting blood samples were obtained. Muscle ceramide and diacylglycerol were measured by gas-liquid chromatography and proteins in insulin signaling, lipid and glucose metabolism were measured by Western blotting. Content of ceramide and diacylglycerol total, saturated, C16:0 and C18:0 fatty acids and C18:1 ceramide were higher in older compared to young. HIIT reduced saturated and C18:0 ceramides, while the content of the proteins involved in glucose (GLUT4, glycogen synthase, hexokinase II, AKT) and lipid metabolism (adipose triglyceride lipase, fatty acid binding protein) were increased after HIIT. We demonstrate a higher content of saturated ceramide and diacylglycerol fatty acids in the muscle of older subjects compared to young. Moreover, the content of saturated ceramides was reduced and muscle glucose metabolism improved at protein level after HIIT. This study highlights an increased content of saturated ceramides in aging which could be speculated to influence insulin sensitivity