Filtyp
This paper concerns the development of innovative composite floor systems, comprising timber beams and prefabricated concrete slabs. For the development of this new system, two properties were regarded as vital, as follows: (1) good stiffness, and (2) a high degree of prefabrication. Shear connection systems installed using completely dry processes were used. Innovative and very efficient material
Direct injection (DI) natural gas engines are modern engine concepts providing clean combustion and high fuel efficiency. Even at high injection pressures, such engines operate at heterogeneous/stratified fuel/air mixture conditions due to the relatively short mixing time of the fuel jet. The sub-optimal fuel-air mixture results in emissions of unburnt hydrocarbon (UHC). In particular, one of the
Huntington disease (HD) is a fatal neurodegenerative disorder caused by an expanded CAG repeat in the huntingtin gene. Non-motor symptoms and signs such as psychiatric disturbances, sleep problems and metabolic dysfunction are part of the disease manifestation. These aspects may relate to changes in the hypothalamus, an area of the brain involved in the regulation of emotion, sleep and metabolism.
Embryonic development is associated with extensive rearrangements of tissues. The driving force for these rearrangements is generated by a dynamic reorganization of the Actin cytoskeleton of individual cells. In many instances, conserved Rho-family GTPases that are activated by Rho guanine nucleotide exchange factors (RhoGEFs) play an important role in this process. The present thesis investigates
In the first part of this thesis discrete time hedging is considered. In paper A an adaptive hedging scheme where the hedge portfolio is re-balanced when the hedge ratios differ by some amount, here denoted eta, is investigated. An expression of the normalized expected mean squared hedging error as eta tends to zero is derived. The result is compared to an earlier result on discrete time hedging o
Ever since its first conception in 1907 by Bergson, "complementarity" has come to represent extremely wholistic situations, for which fragmentability into parts turn out unsuccessful. In 1927, Bohr used the term complementarity within quantum mechanics, with profound consequences, for a principally unsuccessful fragmentability into independent observability and definability concepts. The paper ob
Den svenska arbetskraften har blivit äldre under 1900-talet. Under vissa perioder har denna åldrandeprocess accelererat, medan den har avtagit under andra perioder. I denna studie undersöks vilken roll dessa förändringar i åldersstrukturen spelar för genomsnittlig arbetsproduktivitet och ekonomisk tillväxt. Olika åldersgrupper besitter olika typer av humankapital, eftersom den individuella produktIn the 1900s the Swedish labour force underwent an ageing process, accentuated in some periods and stagnant in others. This study inquires into how, and to what extent, these demographic shifts in the labour market explain changes in average labour productivity and economic growth. Different age groups possess different types of human capital, leading to changes in individual productivity over the
Informal investors have proved to be highly valuable for the growth of the firms in which they have invested. Therefore, it is important to understand what motivates potential informal investors to make their initial investment as well as how already active investors develop their entrepreneurial careers. Such an understanding may prove helpful in directing efforts to locate and attract potential
The ongoing globalisation and the rise of the knowledge economy creates new challenges for regional economic development. In order to cope with these challenges, regions need to strengthen the capacity of existing industries to innovate, but also transform their innovation systems and facilitate the emergence of new industries and development paths. The ability to transform and renew themselves, h
Negative pressure wound therapy (NPWT) has become widely adopted over the last 15 years and over 1000 peer reviewed publications are available describing its use. Despite this, there remains uncertainty regarding several aspects of usage. In order to respond to this gap a global expert panel was convened to develop evidence-based recommendations describing the use of NPWT. In this paper the result
High-energy proton- and deuteron-nucleus collisions provide an excellent tool for studying a wide array of physics effects, including modifications of parton distribution functions in nuclei, gluon saturation, and color neutralization and hadronization in a nuclear environment, among others. All of these effects are expected to have a significant dependence on the size of the nuclear target and th
Readouts that define the physiological distributions of drugs in tissues are an unmet challenge and at best imprecise, but are needed in order to understand both the pharmacokinetic and pharmacodynamic properties associated with efficacy. Here we demonstrate that it is feasible to follow the in vivo transport of unlabeled drugs within specific organ and tissue compartments on a platform that appli
The outcomes of the Fourth Session of the Global Platform for Disaster Risk Reduction show that making cities and rural areas safe from disasters and climate change impacts and enhancing citizens' resilience is everybody's business and part of the larger sustainability challenge. Under the theme Resilient People, Resilient Planet', the session took place on 19-23 May 2013 in Geneva, Switzerland. T
Baker's yeast (Saccharomyces cerevisiae) has been genetically engineered to ferment the pentose sugar xylose present in lignocellulose biomass. One of the reactions controlling the rate of xylose utilization is catalyzed by xylose reductase (XR). In particular, the cofactor specificity of XR is not optimized with respect to the downstream pathway, and the reaction rate is insufficient for high xyl
A review of existing life cycle assessments on food waste management was made with two main aims. Firstly, to make an overview of the assessments of the global warming potential from the treatment alternatives incineration, landfill, anaerobic digestion and compost in studies reported in literature. Secondly, to identify decisive factors in general and related to system boundary settings in partic
Populärvetenskaplig sammanfattning: Geografiska informationssystem på internet är ett relativt nytt fenomen som främst har utvecklats från ett behov att distribuera geografisk data, dvs utbyte av digitala geografiska data och tillhörande tjänster. Men det är även ett kraftfullt verktyg för att presentera information på internet. Detta examensarbete i naturgeografi syftar till att skapa en webbaGIS on the Internet is a rather new phenomenon, which has evolved from the need of distributed geographical data. It is also a powerful tool for presenting information on the Internet. This master thesis aim to create a web based GIS application with information on lime spreading and the situation concerning acidification in the county of Kronoberg, Sweden. The web based GIS application will be us
My purpose in this essay is to show how the staff in an institution for young women with a drug addiction, are looking at themselves as "normal" and the young women as "abnormal", and to analyse how sex and gender are made, in interaction with sexuality and class. The essay is based on interviews and a participating observation. The study is made on a compulsory institutional
