Search for dissertations about: "David Pettersson"

Showing result 1 - 5 of 9 swedish dissertations containing the words David Pettersson.

2. 1. Environmental factors and risk of acoustic neuroma

   Author : David Pettersson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : The aim of this thesis was to increase the knowledge about environmental risk factors of acoustic neuroma and to increase the understanding of the methodological problems encountered when studying this tumor. Acoustic neuroma is a benign, usually slow growing, intracranial tumor of the vestibulocochlear nerve (cranial nerve VIII), the nerve that transmits information about hearing and balance from the inner ear to the brain. READ MORE

4. 2. Preoperative radiotherapy in rectal cancer : aspects of different regimens

   Author : David Pettersson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : In Sweden approximately 2000 patients are annually diagnosed with a rectal cancer. The main treatment of the cancer is surgery. Radiotherapy (RT) is used as an adjuvant treatment in >60% of these patients to improve local control and in some patients to downsize a primary non resectable tumour to facilitate surgery. READ MORE

5. 3. A Panel Method for Supersonic Flow

   Author : David Pettersson; Per Weinerfeldt; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

   Abstract : Supersonic airflow is usually described by a nonlinear hyperbolic system of equations. In this thesis we consider an aircraft represented by a union of thin plates orthogonal to the direction of Right, and describe the derivation of an approximate linear model for the airflow around it. The linear model is reduced to a system of integral equations. READ MORE

6. 4. Process-microstructure-corrosion interrelations for stainless steel

   Author : David Lindell; Rachel Pettersson; Rebecca L. Higginson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steel; processing; annealing; pickling; microstructure; corrosion; anisotropy; oxyfuel; Kemi; Chemistry;

   Abstract : Stainless steels were first developed in the early 20th century and have since then emerged as a very diverse class of engineering materials. Along with steels having new combinations of properties, there is a continuous development of new technologies allowing the material to be produced in a faster and more energy effcient manner. READ MORE

7. 5. Boundaries, believers and bodies : a cultural analysis of a multidisciplinary research community

   Author : Helena Pettersson; Britta Lundgren; Erik Stolterman; David Hakken; Umeå universitet; []
   Keywords : HUMANIORA; HUMANITIES; Culture; ethnographic method; research; technology; boundary object work; symbolic capital; technoromanticism; future; speed; creativity; reality; dystopia; focal things; trading; multidisciplinary; gender; reflexivity; Ethnology; Etnologi;

   Abstract : The aim of this study is to analyze the construction of research culture and collaboration within the research studio Tools for Creativity, one node in the larger Interactive Institute. This studio is an arena that in today’s society is associated with boundary crossing, dynamics and variability: An environment with high-tech equipment, a staff equipped with diverse skills, and a flexible approach with the ambition of developing innovative tools based on ICT to strengthen human creativity. READ MORE