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This dissertation, which is an analysis of the entrepreneur at the micro level, supplements and underpins the understanding and use of the entrepreneur as an agent of social change in the analysis of economic change at the macro level. The aim of the thesis is firstly to seek out and identify businessmen of our time who claim to be innovative, and secondly to un-dertake a qualitative study and ana
The problem of fluid-structure interaction, occurring in many industrial and engineering applications, are of great importance, since interaction of a flow and a structure in it can lead to serious damages of the structure. The fluid-structure interaction gives rise to a variety of different physical phenomena such as flow-induced vibration, noise generation, etc. As an alternative to experimental
The thesis consists of an introductory chapter and three essays, considering sickness insurance, social norms and absence certification. The first essay, Group-Specific Social Norms and Economic Incentives in a General Welfare System, investigates the interaction between economic incentives and social influences in a general welfare system. We relate the results to sickness insurance. The model i
This thesis develops new techniques for analyzing cointegrated relationships in panel data. The first chapter is introductory while the remaining six contain the main contributions. The second chapter is concerned with the estimation of a cointegrated panel relation with endogenous regressors, in which case the least squares estimator is biased unless it is conditioned on the lags and leads of th
A contemporary challenge when designing interactive artifacts is to take into account the wealth of devices, systems, and tools people use every day - here termed an 'interaction ecology'. This thesis addresses three research issues. Firstly, the character of sound perception, and how auditory interaction can be applied to ubiquitous computing. Secondly, how everyday sounds make people aware of su
Cell-replacement therapy is a promising approach for treating patients with Parkinson ́s disease (PD). For this purpose, there is a need for developing a protocol that can generate high numbers of human transplantable mesencephalic dopaminer- gic (mesDA) neurons. For decades, studies have therefore been made in mouse and other model organisms in order to elucidate key-factors that can be used for
Peritoneal adhesions develop after almost all abdominal surgical interventions and represent an important cause of postoperative intestinal obstruction, abdominal discomfort and infertility. Postoperative adhesions can potentially be reduced by using different antiadhesive agents. In the present study, we hypothesized that a combination of oppositely charged polypeptides could effectively decrease
Shape stability, the ability of the wood to retain its shape, is one of the most important parameters when using timber as a building material and for other applications. Generally, timber undergoes changes in dimensions and shape when its moisture content is changed. However, this can often not be tolerated in constructions and thus, methods to improve the shape stability have to be found. In th
The simulation of physical phenomena occurring in chemical reactors requires the description of the kinetics involved in the underlying combustion process. Kinetic models are developed for this purpose. A software package, BlueBellMouse, has been developed to facilitate a deeper automatization and ease of simulation, reduction and optimization of kinetic models. A kinetic model is made of a list o
In recent decades there has been an increasing interest in the indoor environment and its connections with public health. One important topic discussed has been the relation between the moisture in buildings and health.
Cementitious materials, when cast, contain excess water since this is necessary for workability and for flow properties. The pore solutions in cementitious materials, besid
Abstract: The purpose of this thesis was to evaluate ProstaLund Feedback Treatment® (PLFT®) and the CoreTherm® device with regard to biophysics, mechanisms of action, treatment indications, additional techniques, efficacy and safety in the treatment of patients with benign prostatic hyperplasia (BPH). The application of two biophysical equations in the PLFT software is explained. The calculations
Politics induce economic agents to organise into special interest groups (SIGs) and act strategically to adjust their economic decisions and to conduct rent-seeking activities in order do improve the situation inflicted on them by policy. This thesis examines, in four essays, different forms of SIG influence on public policy in different institutional contexts. The two first essays examine two rel
The present thesis is concerned with the theoretical study of x-ray photoemission spectra from clean and adsorbate-covered metal surfaces. The main tool is ab initio density functional (DFT) total energy calculations. The first part gives an overview of the theoretical treatment of x-ray photoemission with our present contributions highlighted, and an introduction to DFT theory and computational t
Prostate cancer is one of the major causes of cancer related deaths in men in Europe and the United States. In this doctoral thesis, radioimmunoimaging and -therapy of prostate cancer was investigated pre-clinically by targeting the human kallikrein-related peptidase 2 (hK2) with radiolabelled monoclonal antibodies. hK2 is an antigen that is over-expressed in prostatic neoplasms and is closely rel
Patients suffering from renal failure must remove extracellular water and waste products from their body in order to survive. One way of doing this is by treatment with peritoneal dialysis (PD). During PD treatment the abdominal cavity is filled and drained continuously with one to three liters of dialysis solution, often containing glucose, which act as an osmotic agent. Glucose creates a pressur
The old, world-wide phenomenon of playing board games has received little attention among scholars studying the ancient cultures. This thesis collects and analyses game-related material from Bronze Age Crete, defines the field of research and provides a framework with definitions and typologies. A further goal is to use the results of the analyses to extend beyond the archaeological material and e
Heat processing of vegetables involves the use of temperatures above the physiological limit which affect the cellular structures of the tissue and induce a series of events at cell level that will in turn be reflected in the transport properties of the tissue. One of the most important cellular structures from the mass transport point of view is the cell membrane since it represents the physical
In this thesis effects of liming on ectomycorrhiza have been studied in relation to effects on root colonization, fungal growth and nutrient uptake. In field experiments the effects of liming on ectomycorrhizal colonization of root tips were variable, possibly due to different soil types and climatic variations. However, a changed mycorrhizal community structure could be detected. Laboratory studi
Lymphocytes are important mediators of adaptive immune responses. Naive T lymphocytes circulate in the blood and lymph between different secondary lymphoid organs in search for their specific antigen. Upon activation, lymphocytes change their expression of adhesion molecules and chemokine receptors and become able to enter non-lymphoid tissues where they take part in fighting infections. Selective
The enzyme magnesium chelatase inserts magnesium into protoporphyrin IX (Proto) to produce to magnesium protoporphyrin IX, the first unique intermediate of the chlorophyll biosynthetic pathway. Magnesium chelatase is composed of three distinct proteins termed I (molecular weight ~40 kDa), D (~70 kDa) and H (~140 kDa). Defining the individual properties and structure of the magnesium chelatase comp
