Sökning: "johan hellgren"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden johan hellgren.
1. Compensation for hearing loss and cancellation of acoustic feedback indigital hearing aids
Sammanfattning : The development of integrated circuits during the last decades has made it possible to incorporate digital signal processing in hearing aids that fit into the ear canal and are powered by small zink-air batteries. The digital signal processing provides new possibilities for the hearing aid to modify the signal to fit the impaired ear. LÄS MER
2. Measuring transport quality in line-based road traffic
Sammanfattning : .... LÄS MER
3. Non-infectious rhinitis. Epidemiology and clinic
Sammanfattning : We have assessed self-reported rhinitis in the absence of common cold, called "Non-infectious rhinitis", (NIR). The occurrence of NIR was investigated in a population sample of 2,044 individuals, aged 21-51, in an industrialised county in Sweden who answered a questionnaire relating to NIR and occupational exposure to potential irritants and sensitisers. LÄS MER
4. A New Model for Assessment of Change in Visual Function in Diabetes
Sammanfattning : The purpose of this thesis was to determine whether perimetry using a new model to interpret deterioration or improvement in the visual field can be employed to assess change in visual function over time in diabetes. Diabetic retinopathy has long been considered a microvascular disease, but it is still a matter of debate to what extent diabetes also affects retinal neurons. LÄS MER
5. Att översätta TQM : - en longitudinell studie kring reflekterande aktörer
Sammanfattning : This doctoral thesis focuses on translating Total Quality Management (TQM). The reason for this focus is that ideas such as TQM rarely or never contain a complete description of how the idea is to be “installed” in an organisation if it is to achieve the intended result. LÄS MER