Search for dissertations about: "H Johnsson"

Showing result 1 - 5 of 6 swedish dissertations containing the words H Johnsson.

2. 1. On the Electrolyte Induced Aggregation of Concentrated Silica Dispersions - An Experimental Investigation Using the Electrospray Technique

   Author : Ann-Catrin J. H. Johnsson; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Colloidal silica dispersion; aggregation; gelation; electrospray ES ; scanning mobility particle sizer SMPS ; synchrotron radiation small-angle x-ray scattering SR-SAXS ; electron microscopy EM ; dynamic light scattering DLS ; particle morphology; ion specificity; gel layer;

   Abstract : Gels are weak, solid-like structures that arise when colloidal particles aggregate to form a network of particle clusters. A variety of colloidal systems that are important scientifically as well as in industrial applications are capable of gel formation, e.g. globular protein solutions, colloid-polymer mixtures, and metal oxides. READ MORE

4. 2. Studies on streptococcal M proteins. Interactions with IgA and human complement regulators

   Author : Eskil Johnsson; Institutionen för laboratoriemedicin; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; antigenic variation; factor H; C4b-binding protein; Fc-receptor; IgA; Streptococcus pyogenes; M protein; mykologi; virologi; bakteriologi; Mikrobiologi; virology; mycology; bacteriology;

   Abstract : The human pathogenic bacterium Streptococcus pyogenes (group A Streptococcus) expresses several different virulence factors. Of these, the M protein is regarded as one of the most important, because it confers resistance to phagocytosis, allowing the bacterium to multiply in blood. READ MORE

5. 3. Extremum-Seeking Control of Industrial-Scale Fermentation Processes

   Author : Ola Johnsson; Institutionen för reglerteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : The work presented here is based on two papers, both pertaining to perturbation-based control strategies in industrial fed-batch fermentation processes. The first paper describes a new control strategy for avoiding overflow metabolism in the exponential growth phase of a fermentation, based on analysis of the frequency spectrum of the dissolved oxygen measurement following a periodic perturbation in the feed rate. READ MORE

6. 4. Disordered eating among Swedish adolescents : Associations with emotion dysregulation, depression and self-esteem

   Author : Erika Hansson; Per Johnsson; Daiva Daukantaité; Institutionen för psykologi; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Disordered eating; emotion dysregulation; depression; self-esteem; SCOFF; parental associations;

   Abstract : The path to an eating disorder (ED) always leads through a borderland, which, in this thesis, is referred to as disordered eating (DE) (Neumark-Sztainer, Wall, Eisenberg, Story, & Hannan, 2006; Waaddegaard, Thoning, & Petersson, 2003). In this borderland, people tend to make unhealthy eating choices, such as greatly reducing their food intake, self-inducing vomiting, or engaging in binge eating, but not to the extent that they would receive an ED diagnosis. READ MORE

7. 5. Laparoscopic or Open Antireflux Surgery - A Comparative Study with Special Reference to the Patient´s Perspective

   Author : Gunilla Nilsson; Folke Johnsson; Bengt Hallerbäck; Institutionen för hälsovetenskaper; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Antireflux surgery; fundoplication; RCT; laparoscopy versus open surgery; subjective outcomes; objective outcomes; narratives; short-term follow-up; long-term follow-up; Surgery; Kirurgi; Health Informatics; Hälsoinformatik; Omvårdnad; Nursing; Gastro-enterology; Gastroenterologi; traumatology; orthopaedics; Surgery; long-term follow-up; short-term follow-up; narratives; objective outcomes; subjective outcomes; laparoscopy versus open surgery; RCT; Antireflux surgery; fundoplication; Kirurgi; traumatologi; ortopedi;

   Abstract : The overall aim of this thesis was to compare the effects of laparoscopic versus open antireflux surgery in a randomized clinical trial focusing the patients' subjective and objective outcome postoperatively, from a short-term and a long-term perspective. A further aim was to describe GORD patients' experiences of illness and surgical treatment and if possible to find striking characteristics relating to laparoscopic or open surgery. READ MORE