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Selective oxidation reactions represent a challenging task for conventional organic chemistry. Whole-cell biocatalysis provides a very convenient, easy to apply method to carry out different selective oxidation reactions including chemo-, regio-, and enantio-selective reactions. Streptomyces species are important biocatalysts as they can catalyze these selective reactions very efficiently owing to
It is widely known that nanoparticle seeded growth of III-V semiconductor nanowires often occurs via the vapor-liquid-solid mechanism. However, conventional growth of nanowires is carried out in closed systems, where mostof the details and dynamics of the growth are impossible to follow. Since all analysis is typically carried out after growth completion and transfer, only the trends in the produc
Behovet av att ersätta konventionell fossilbaserad plast blir allt viktigare. Eftersom klimatförändringarna mer synligt påverkar vårt samhälle, förvärrar det problemet att använda icke-hållbara resurser för att tillverka plast. Dessutom hamnar dessa långvariga, icke-återvunna avfall i våra hav, vilket skapar ett inneboende miljöföroreningsproblem. Att forska om nya biobaserade byggstenar för att mThe need to replace conventional fossil-based plastics is becoming more imperative. As climate change is more visibly affecting our society, employing non-sustainable resources to produce plastics is aggravating the problem. Moreover, these long-lasting, non-recycled wastes end up in our oceans, creating an intrinsic environmental pollution problem. Researching new biobased building blocks to enab
This study revisits the question of what impact Japanese colonialism had on the long-term economic development of North and South Korea. Factor endowments, economic activity and economic performance are compared between the regions that later became parts of North and South Korea, respectively. The study finds that important elements of the economic history of the peninsula have not been sufficien
This dissertation explores and compares the rationalities through which Danish state officials sought to govern the colonized Afro-Caribbean population in the colony of the Danish West Indies and the state’s Danish subjects living in the metropole of Denmark in the period 1770-1900. Theoretically, it relies upon Michel Foucault’s conception of ’governmentality’ and the way this approach to governi
Objectives: In India, cervical cancer is the most common cancer among women and makes up for up to 29% of all registered cancer in females. Cancer-related pain is one of the major distressing symptoms for all cancer patients. Pain is characterised as somatic or neuropathic, and the total pain experience is often mixed. Conventional opioids are the backbone of analgesic treatment but are most often
BACKGROUND: Deregulated lipid metabolism is common in cancer cells and the mevalonate pathway, which synthesizes cholesterol, is central in lipid metabolism. This study aimed to assess statin-induced changes of the intratumoral levels of cholesterol and the expression of the low-density lipoprotein receptor (LDLR) to enhance our understanding of the role of the mevalonate pathway in cancer cholest
Popular Abstract in Swedish Vid vattenabsorption i en polymer antas vattenmolekylerna röra sig genom polymeren via små kaviteter, som inte upptas av polymermolekylerna och dess termiska vibrationer. Den ej upptagna volymen, som de små kaviteterna representerar kallas fri volym. Storleken på kaviteterna liksom andra egenskaper hos polymeren såsom andelen kristallin fas ändras kontinuerligt i takt mDuring moisture uptake in polymers, the diffusion of the water molecules is believed to occur via unoccupied voids. These voids are called free volume cavities and their sizes are continuously altered when the moisture content in the polymer is enhanced. Not only the free volume cavity sizes, but also other polymer properties such as the degree of crystallinity, are changed as a consequence of moi
Popular Abstract in English Most of us are familiar with using plant-derived material such as wood for producing heat for warming the cottages or cooking food when we are camping. Apart from that, plant-derived materials such as trees, forest residues, grasses, agricultural crops, agricultural residues and straw have great potential in producing energy in a larger scale. This group of material is In this thesis, a numerical approach is adopted to study biomass thermochemical conversion. Detailed physical and chemical processes involved in the thermochemical conversion of biomass are considered. The aims are to improve the understanding of the physical and chemical processes involved and to develop and validate mathematical models for numerical simulation of the biomass conversion process.
This thesis treats two separate but connected themes. This affiliation originates in optimization being the common choice of method for solving most of the occurring challenges. The first theme of the thesis is image segmentation. This is usually defined as the task of distinguishing objects from background in unseen images. This visual grouping process is typically based on low-level cues suc
