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Development of a Bioelectronic Tongue -Applications for Wastewater Analysis

A bioelectronic tongue has been developed for applications in wastewater analysis. The development of a biosensor array with complex signal analysis started from the idea of using group-selective phenol biosensors (tyrosinase and horseradish peroxidase) with chemometric analysis for signal processing. In a first step the ability to simultaneously determine each analyte in synthetic binary phenol m

Multiparticle Production in Strong Interactions

An alternative formulation of the Lund fragmentation model for string states without gluons is presented. It is shown that the fragmentation process can be factorised into a product of transition operators with well-defined eigenfunctions and corresponding eigenvalues. The physical properties of these functions are studied and possible applications are suggested. A fragmentation model for multigl

How can p53 induce differentiation of leukemic cells?

Popular Abstract in Swedish p53 Ñett protein som kan fŒ leukemiceller att bli mera mogna Vid akut leukemi ansamlas omogna blodceller med nedsatt fšrmŒga till utmognad och programmerad celldšd. Detta leder till frŒnvaro av normala blodceller, vilket Šr huvudorsaken till de infektioner och blšdningsrubbningar som utgšr leukemins frŠmsta symptom. Akut leukemi har hittills framfšr allt behandlats medThe terminal differentiation of leukemic cells is closely connected to their death. The concept of differentiation therapy originates from the idea that forced maturation of leukemic cells could induce cell death without the side-effects that are provoked by ordinary chemotherapy. The tumour suppressor protein p53 is a transcription factor, and can induce cell cycle arrest and apoptosis of maligna

High Strain Fatigue Crack Growth and Crack Closure

Popular Abstract in Swedish I en komponent som utsätts för upprepande på- och avlastningar, d.v.s. cyklisk belastning, kan defekter i form av sprickor initieras och börja växa. Detta fenomen kallas utmattning och kan leda till haveri med potentiellt katastrofala följder. Det är därför viktigt att förstå fenomenen som ligger bakom utmattning och att ha tillförlitliga modeller för att förutsäga livsUnderstanding of the growth of fatigue cracks is of utmost importance since such growth often has a profound influence on the life of components subjected to cyclic loading. Thus, reliable fatigue life models enable a more efficient use of materials and improve the performance and efficiency in many applications. This thesis deals with the growth of fatigue cracks subjected to high load amplitude