Sökning: "Per Norström"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Per Norström.
Sammanfattning : Technological knowledge is of many different kinds, from experience-based know-how in the crafts to science-based knowledge in modern engineering. It is inherently oriented towards being useful in technological activities, such as manufacturing and engineering design. LÄS MER
Sammanfattning : This thesis consists of two essays and an introduction. The main theme is technological knowledge that is not based on the natural sciences.The first essay is about rules of thumb, which are simple instructions, used to guide actions toward a specific result, without need of advanced knowledge. LÄS MER
3. To know a subject - Teachers' views about the subject of technology : How the subject of technology is described and approached by teachers in the lower secondary school
Sammanfattning : For teaching to be successful, teachers must be well-educated and have knowledge in many different fields. With a combination of solid subject knowledge, good teaching skills and the ability to balance these qualities, teachers can support students’ learning. LÄS MER
Sammanfattning : Conventional end-of-pipe solutions for wastewater treatment have been criticized from a sustainable view-point, in particular regarding recycling of nutrients. The integration of hydroponic cultivation into a wastewater treatment system has been proposed as an ecological alternative, where nutrients can be removed from the wastewater through plant uptake; however, cultivation of plants in a temperate climate, such as Sweden, implies that additional energy is needed during the colder and darker period. LÄS MER
Sammanfattning : Background: Celiac disease is a chronic disease characterized by intolerance to gluten. It is considered a public health problem affecting about 1% of Western populations, but, with most cases still undiagnosed. A glutenfree diet is the only effective treatment for the disease. LÄS MER