Sökning: "Björn Johansson"

Visar resultat 6 - 10 av 76 avhandlingar innehållade orden Björn Johansson.

1. 6. Analysis of the molecular interplay between Streptococcus pyogenes and its human host

   Författare :Björn Johansson; Infektionsmedicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; bacteriology; virology; mycology; Biomedicinska vetenskaper allmänt ; Regulation; General biomedical sciences; IdeS; Enzyme; Virulence factors; Virulence; Bacteria; Streptococci; bakteriologi; virologi; mykologi; GAS; Protein; Mikrobiologi;

   Sammanfattning : The common human pathogen Streptococcus pyogenes is the causative agent of numerous mild and severe clinical conditions. It expresses a number of secreted or cell wall-anchored proteins that modulate the human immune system and facilitate colonization and spread of the pathogen in the human host. During S. LÄS MER

3. 7. Att slåss för erkännande : en studie i gatuvåldets dynamik

   Författare :Björn Johansson; Mats Ekström; Malin Åkerström; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; street related violence; crimes of violence; urban environment; virtual community; border controls; territoriality; social transactions; respect; honour; street etiquette; street wisdom; rituals; power; status; recognition; gangs; emotions; social bonds; sociologi; Sociology; Sociologi; Sociologi; Sociology;

   Sammanfattning : The aim of this thesis is to give a contribution to the knowledge of why people use violence against each other in public places. In more specific terms the thesis examines mechanisms that generates violent actions by reference to what happens in the situated transaction between the offender and the victim, and to the ways in which the urban environment create opportunities for violent actions. LÄS MER

4. 8. Bone grafts and dental implants in the reconstruction of the severely atrophied, edentulous maxilla

   Författare :Björn Johansson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; dental implants; maxilla; grafted bone; implant failure; clinical study; computed tomography; cutting torque; Kirurgi; Surgery; Kirurgi; plastikkirurgi; Plastic Surgery;

   Sammanfattning : In two prospective, clinical studies the stability of implants and prosthetic constructions were evaluated after three years of loading. In the first study, the implant and the bridge stability of 39 patients with 1-stage bone grafts, were compared to a reference-group of 37 patients who did not need bone grafts. LÄS MER

5. 9. Computer Vision Using Rich Features - Geometry and Systems

   Författare :Björn Johansson; Matematik LTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; imagebased rendering; Computer vision; view synthesis; Mathematics; Matematik;

   Sammanfattning : In this thesis a number of computer vision problems is discussed, in particular we study the problem of view synthesis. The focus is on using complex features to determine the geometry of the scene and the cameras, in contrast to traditional point-based methods. LÄS MER

7. 10. Deciding on Using Application Service Provision in SMEs

   Författare :Björn Johansson; Sven Carlsson; Göran Goldkuhl; Ulf Melin; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; information and communication technology; ICT; small and medium-sized enterprises; SMEs; Application Service Provision; ASP; Application Service Providers; decisionmaking; Datavetenskap; Computer science; Datavetenskap;

   Sammanfattning : The use of external providers for the provision of information and communication technology (ICT) in small and medium-sized enterprises (SMEs) is expected to increase. At the end of the 1990s the concept of Application Service Provision (ASP) and Application Service Providers (ASPs) was introduced. LÄS MER