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This thesis concerns the numerical simulations and modelling of the flow structure and scalar transport in stirred reactors. For this Large Eddy Simulations (LES) have been used. The flow situation in a stirred reactor includes several flow phenomena that are not well predicted by "standard" two-equation models, e.g. swirl, stagnation points and anisotropic turbulence. Also, using LES one can obta
Ett försök att tänka om och tänka nytt när det gäller definitionen av begreppet politisk teater utifrån två aktuella iscensättningar.
To obtain more information about muscle function in patients with dysphagia, simultaneous barium swallow and computerized pharyngeal manometry with solid-state pressure transducers was employed for the evaluation of the pharynx and the pharyngoesophageal segment (PES) in 30 consecutive patients. The manometry catheter was positioned under fluoroscopic control, providing localized measurements of t
Popular Abstract in Swedish Denna avhandling består av tre olika uppsatser. Den första uppsatsen, Technical Efficiency and Ownership: The Case of Booking Centres on the Swedish Taxi Market” behandlar problemet med konkurrens på lika villkor. Upprinnelsen till uppsatsen var diskussioner mellan privata och offentliga aktörer på den svenska taximarknaden. De privata aktörerna hävdade att de offentligThis thesis consists of three different essays, all of which have arisen from a practical problem. In the first essay, “Technical efficiency and ownership: The case of booking centers in the Swedish Taxi Market” the purpose is to examine the question of competition on an equal basis between privately and publicly owned booking centers in the Swedish taxi market. One way to answer this question is
d A polymer microfabricated proteomic sample preparation and MALDI MS sample presentation device, the integrated selective enrichment target (ISET), comprising an array of perforated nanovials is reported. Each perforated nanovial can be filled with selective extraction media (microbeads) for purification and concentration of protein/peptides prior to matrix-assisted laser desorption/ionization ma
[1] Vigorous debate still surrounds the cloud electrification process and unexplained regional variations in lightning activity. Here, we show that climatological maxima in lightning activity are associated with small effective diameter D-e of ice crystals near cumulonimbus cloud tops. This relationship, unlike lightning's more well-known relationship with cloud top height, is consistent over land
IgE switching requires the prior induction of CE germline transcripts which is mediated by the concerted binding of STAT-6 and NF kappaB to the CE promoter. These transcription factors are regulated by IL-4 and CD40, respectively. However the latter can effect other signaling pathways and the present study explores the role of p38 MAPK in induction of CE germline transcripts. CD40 and IL-4, both a
Many studies have been published about giving and receiving bad messages. However, only a few of them have followed the patients all the way through a disease as is done in this study. Many studies have been written about patients' coping strategies. In this study we will keep within the bounds of coping through information only. The aim of the study is to investigate patients' views of informatio
Popular Abstract in SwedishVad är barnets bästa i en domstolsprocess? Hur skall barns behov och intressen tillvaratas under utredningsarbete och beslut, och av vem? I vilken utsträckning skall barn få komma till tals, och varför? Under senare år har barns rättsliga ställning inom olika områden tilldragit allt större intresse inom rättsvetenskapen, bland rättstillämpare och hos allmänheten. SverigeThis dissertation deals with the question of the child´s legal status in legal proceedings concerning its own person. Special problems that may arise in investigations concerning the situation of the child and in decisions on measures to be taken in the best interest of the child are also examined. The Care of Young Persons Act (1990:52) constitutes the framework of this study. According to the Ac
Popular Abstract in Swedish Riskanalys och insatsplanering är viktiga delar av ett riskhanteringsarbete. Denna studie har visat att det är möjligt att använda brandtekniska ingenjörsmodeller för att bedöma utvecklingen av bränder och det uppkomna behovet av släckmedel. Brandkårsdata från London användes för att studera sambandet mellan brandstorleken och räddningstjänstens insats. Dessa data, tillRisk analysis and intervention planning are important in fire prevention and risk management strategies. This study has shown that it is possible to use fire safety engineering models to estimate the development of fires on a realistic scale, and the corresponding requirement for extinguishing media. Data from the London Fire Brigade (UK) were used to investigate a possible correlation between the
The use of cancer biomarkers to anticipate the outlines of disease has been an emerging issue, especially as cancer treatment has made such positive steps in the last few years. Progress in the development of consistent malignancy markers is imminent because advances in genomics and bioinformatics have allowed the examination of immense amounts of data. Osteopontin is a phosphorylated glycoprotein
There is growing awareness that the profound changes in the environment (eg, in diet and other lifestyle conditions) that began with the introduction of agriculture and animal husbandry approximate to10 000 y ago occurred too recently on an evolutionary time scale for the human genome to adjust. In conjunction with this discordance between our ancient, genetically determined biology and the nutrit
We present a viewpoint of the transport process in quantum cascade laser structures in which spatial transport of charge through the structure is a property of coherent quantum mechanical wave functions. In contrast, scattering processes redistribute particles in energy and momentum but do not directly cause spatial motion of charge.
OBJECTIVE: To investigate whether patients with severe radiographic osteoarthritis (OA) have a different outcome at one year after total hip replacement than patients with moderate radiographic OA. To investigate sex related differences in preoperative radiographic and self reported status and in postoperative outcome.METHODS: 184 patients (96 women) with a mean age at surgery of 71.4 years (50-92
A short introductory analysis of, with translated extracts from, an original Chinese so-called public diary from the Cultural Revolution.
Multiple sclerosis (MS) is a chronic inflammatory disease of central nervous system (CNS) which is thought to arise from a breakdown of immunological tolerance in CD4 cells. The aim of this thesis is to improve our understanding of regulation mechanisms of T cell-dependent chronic inflammation in the CNS and explore ways to overcome the onset and progression of the disease, which can be an importa
