Popular Abstract in Swedish Vi blir alla förkylda, får influensa eller magsjuka någon gång då och då. Smittsamma sjukdomar orsakas av patogener, d.v.s. virus, bakterier eller andra typer av parasiter. De flesta patogener som vi kommer i kontakt med tas om hand av vårt effektiva immunförsvar och vi märker i bästa fall inte av smittan. Huruvida vi blir sjuka eller inte när vi utsätts för smitta, berThe Major Histocompatibility Complex (Mhc) genes are crucial for the recognition of self and non-self peptides by the immune defence system. They are extremely variable in most studied vertebrate species. I have studied the extent and the importance of Mhc variation in Atlantic salmon (Salmo salar), mainly from the Baltic Sea. Levels of Mhc heterozygosity in hatchery populations of salmon were bet

Popular Abstract in Swedish Det mesta av det genetiska materialet i en eukaryot cell finns samlat till kärnan och är organiserat i kromosomer. Varje gång en cell delas kopieras kromosomerna så att de båda resulterande cellerna får ett bibehållet kromosomantal. Den mekanism som styr denna replikeringsprocess förmår dock inte kopiera de yttersta kromosomändarna, vilket resulterar i att dessa blir koTelomeres are specialized complexes of DNA and proteins that cap and confer stability to the ends of eukaryotic chromosomes. The telomeric DNA of most eukaryotes is composed of tandemly arranged short repeats. Within the budding yeasts these repeats are diverged in length as well as in nucleotide composition. However, they contain a sequence resembling the consensus binding sequence of the major t

Four different non-nuclear industries have been investigated regarding the presence of radioactive elements, with the focus on natural radioactivity. The aim of the studies was to investigate the flow of radionuclides in the processes and/or to estimate doses to exposed workers. The first industry investigated was phosphate processing in the manufacture of dicalcium phosphate (DCP), which is used

Thermographic phosphors can be robust temperature remote sensors. The accuracy of the temperature measured by the phosphor is highly dependent on the quality of the phosphor calibration used. Conventionally, thermographic phosphors are calibrated by measuring a series of decay curves at known stable oven temperatures. The process is then repeated covering the thermal sensitivity range of the phosp

Popular Abstract in Swedish Att ha tillgång till en världsbeskrivning under exekveringen av sensorstyrda robotsystem kan potentialen hos ett industriellt robotsystem avsevärt förbättras. Intellegent beslut kan baseras på den nominella informationen tillgänglig under planeringsstadiet och den nya informationen som erhålles från sensorer under körningen. Världsbeskrivningen kan då uppdateras kontinuTraditional off-line programming is not enough in order to use the full potential of virtual models and simulation system in industrial robot applications. The interface between off-line programming system and the robot controller is today restricted to program transfer. In this way a large amount of information is lost since typical robot programming languages is rather limited. If the virtual m

Popular Abstract in Swedish Under senare tid har hävdats att den IT/media-drivna så kallade "nya ekonomin" starkt etablerats. Enligt många påverkar IT/media teknologier marknadsföring och affärsverksamheter på ett 'revolutionerande' sätt. Denna avhandling behandlar kritiskt och strategiskt konstruktionen av värdeskapande affärserbjudanden där IT/media används. Vidare utvecklar författaren grundlägThis dissertation addresses the design of value productive episodes at the customer/firm boundary. Its purpose is: To provide perspective and help articulate strategies for increasing precision of the design of interactive marketing and value productive efforts at firm/customer boundaries. Many observers, thinkers and practitioners of marketing and management are: (1) Struggling to comprehend and

Lactic acid exists as two optical isomers, D- and L-lactic acid. For the production of biodegradable poly-lactic acid an optically pure product is desirable, but a racemate of known and constant ratio can also be used. Lactic acid can be produced either synthetically or fermentatively. Fermentative production has some advantages: by choosing a lactic acid bacterium producing only one of the isomer