Filtyp
This thesis concerns vascular endothelial growth factor (VEGF) and its possible role as a neurotrophic factor. I have investigated the effect of VEGF on neurons in culture but also in vivo, following a crush lesion of the sciatic nerve, and following nerve repair. Attempts were also made to unravel the mechanism by which VEGF affects neurons and Schwann cells, using a pharmacological approach in c
Popular Abstract in Swedish Stokastika effekter är av stor betydelse i många biofysiska system. Evolution, djurs sökande efter föda, spridning av virusinfektioner och stamcellsdifferentiering, är alla exempel på processer som på ett eller annat sätt är stokastiska till sin natur. Syftet med denna avhandling är att undersöka de verktyg som ofta används för att kvantifiera slumpmässighet i naturen o
Popular Abstract in Swedish Avhandlingen är en tematisk och historisk studie av Sjömans filmer och av hans betydelse för svensk filmkultur, framför allt under 1960- och 1970-talen. Sjöman är mest känd som filmregissör. År 1962 hyllades debutfilmen Älskarinnan av kritikerna. Sjöman sågs som föregångare till en ny våg i svensk film. Genom debatten efter filmcensurens totalförbud av 491 (1964) kom SjThis thesis is a thematic and historical analysis of of Sjöman’s œuvre and its significance for Swedish film culture, focussing on his most important films during the 1960s and 1970s. Sjöman started as a novelist in the late 1940s, and has since then accomplished an œuvre consisting of some 60 works, mostly novels, plays, essays, and films. Sjöman is best known as a film director. In 1962, Sjöman’
Ethanol production by the yeast Saccharomyces cerevisiae from dilute acid lignocellulose hydrolyzate was studied with the aim to improve fuel ethanol production. Specifically, the problem of inhibition was addressed. Lignocellulose hydrolyzate contains not only sugars, but also several compounds, such as furfural and 5-hydroxymethyl furfural (HMF), which can inhibit yeast growth and ethanol produc
Background: Regional myocardial function is typically evaluated by visual assessment by experienced users, or by methods requiring substantial post processing time. Visual assessment is subjective and not quantitative. Therefore, the purpose of this study is to develop and validate a simple method to derive quantitative measures of regional wall function from velocity encoded Cardiovascular Magnet
Bifacial PV cells have the capacity to produce solar electricity from both sides and, thus, amongst other advantages, allow a significantly increase both in peak and annual power output while utilizing the same amount of silicone. According to the manufacturer, the bifacial cells are around 1.3 times more expensive than the single-sided cells. This way, bifacial PV cells can effectively reduce the
Several valuable substances are released from wood during the production of thermomechanical pulp. These substances can be isolated and purified for use as value-added chemicals. The hemicellulose galactoglucomannan (GGM) has attracted a great deal of interest because of its possible applications as an oxygen barrier film in packaging materials, as a hydrogel in biomedical products and as an emuls
Earlier work has shown that pre-B cells can be converted into macrophages by the transcription factor CCAAT/enhancer binding protein a at very high frequencies. Using this system, we performed a systematic analysis of whether during transdifferentiation the cells transiently reactivate progenitor-restricted genes or even retrodifferentiate. A transcriptome analysis of transdifferentiating cells sh
Temporal adverbs (时间副词 shíjiān fùcí) in Modern Standard Chinese (MSC) are a group of words assuming the role of adverbial modifier (状语 zhuàngyǔ), expressing a temporal notion. Both characteristics are problematic; adverbs (副词 fùcí) are defined as a word class with the sole function of assuming the role of adverbial modifier, but several words traditionally categorized as temporal adverbs have synt
Photon echoes have been studied both experimentally and theoretically, with the main part of the work centred around the concept of using photon echoes for all-optical data storage and processing. The four basic Boolean operators, AND, OR, NOT and XOR have been experimentally demonstrated using photon echoes. These constitute a complete set of Boolean operators. Selective erasure of digital data b
Within institutional theory of organization, regulative, normative as well as cultural-cognitive elements play a central role when studying patterns of thought and action within and between organizations. In similar way, theory building within sociology of law has devoted vast interest in norms and rules as determinant for human action. To a great extent, the perspectives have nevertheless develop
Retrieval orientation describes the modulation in the processing of retrieval cues by the nature of the targeted material in memory. Retrieval orientation is usually investigated by analyzing the cortical responses to new (unstudied) material when different memory contents are targeted. This approach avoids confounding effects of retrieval success. We investigated the neural correlates of retrieva
Morocco has for twenty years been in what is officially described as a transition to democracy. During the former king Hassan II negotiations with the opposition resulted in two constitutional reforms and a new government in 1998 dominated by the former opposition parties. In the 2000s two important law reforms were made: a new law of personal status in 2004 and a new constitution in 2011. The new
The rapid development of the technology of today increasingly involves the design and fabrication of devices of smaller and smaller dimensions, down to the atomic length scales. At the nanoscale molecular dynamic (MD) models are often used. For many but the smallest systems, MD models are computationally too expensive, whereas classical continuum mechanics models not accurately can resolve microsc
There has recently been a considerable attention to the possible role of semiconductor nanowires for future device applications. To make this development feasible, precise control over the growth mechanism is required. In the Vapor-Liquid-Solid growth, the most common growth mechanism, gas phase precursors decompose in presence of catalytic particles and after supersaturating the particles, solid
The main focus of this contribution consists in the elaboration of a continuum modelling approach accounting for dislocation-based quantities. Related deformation dependent history-variables are attached to individual material points and, moreover, are extended by means of gradients thereof so that so-called weak non-localities are captured. These gradients of internal variables may be further spe
The erection of roadside memorials in Sweden is commonly considered a novel practice, appearing during the last 10-15 years. Nevertheless similar precedent practices can be found in the history of Sweden. Stories about marking the site of an unexpected death with a cross could be said to date back to the eleventh century legend of Saint Sigfrid, telling of the first English missionary to spread C
Multifunctional buildings have become more common in the last years. At the same time the threat from antagonistic attacks has increased. This presents challenges for the fire safety systems in multifunctional buildings since continuity of functions, especially those considered to be of societal importance, need to be operational and at the same time antagonistic exposures may present more challen
