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In this thesis, I have studied in situ the resource economy of the three carnivorous plant species Pinguicula alpina, P. villosa and P. vulgaris in a subarctic environment. The prey capture varied among individual plants, years and species. It was higher in young leaves then in old ones. P. vulgaris captured more prey that the other species and reproductive individuals of P. vulgaris captured more
The aim of the study is to improve the understanding of strategy in politically governed organisations. From the perspective of a specific responsible authority the main purpose of the study is to describe and analyse how strategies emerge and develop. Competitive tendering and inter-municipal co-operation, has been studied as a two principally different strategic approaches to reduce costs and st
This study describes, systematizes and analyses the variations of preachers' conceptions of their mission to preach and their listeners' conceptions of the sermon. It does so in a phenomenographic and theological perspective. The conceptions of preachers and their listeners of the mission to preach and the sermon respectively are investigated by way of interviews. The basic issues are what differe
In this dissertation, young men's experiences of being victims of crime are analysed. Several kinds of material are considered in this study, but the primary data consist of informal, tape-recorded interviews with ten young men (17 to 21 year's old) who had been assaulted or mugged. Their accounts of their experiences are analysed using a number of constructionist, interactionist, and narrative pe
In this study an experimental setup for measurements of high impedance objects in ducts, yielding the acoustical Two-Port properties of the object, is applied to earplugs. A frequently used experimental setup for measuring objective acoustical properties of earplugs is that of artificial ears. Great effort is spent on duplicating the human ear. The acoustical properties of the earplug are thought
This thesis deals with methods for handling resource constraints in embedded control systems and real-time computing systems. By dynamic feedback-based resource scheduling it is possible to achieve adaptability andincreased performance for these systems. A feedback scheduling strategy is presented, which uses feedback from plant states to distribute computing resources optimally among a set of co
Arbuscular mycorrhizal (AM) fungi colonise a wide range of plant species and are especially common in soils with a relatively high pH, where phosphorus availability is a limiting factor for primary production. The aim of this thesis was to study the ecophysiology of arbuscular mycorrhizal (AM) fungi when exposed to different environments. Development of AM fungi and their host plants were investig
In times when dwindling energy resources is a major long-term problem for sustaining modern infrastructure and technologies, we need to focus on more enduring solutions. A key contribution to this achievement is catalysis. In order to further develop the significant advancements gained over the last several decades, a deeper understanding of the catalytic processes has to be sought down to the lev
The objective of the present work was to investigate the mixing process in static mixers under laminar flow conditions, and in pipes during the displacement of dissimilar liquids. A numerical scheme and a method of characterizing static mixers were developed. The effects of changes in geometry, flow rate, viscosity ratio and volumetric flow rate ratio on the mixing process were investigated using
Potts mean field artificial neural network techniques are developed and applied to airline crew scheduling problems and routing problems. A propagator formalism in terms of Potts neurons is developed to handle global topological issues. An integrated method for identifying and classifying ECG complexes is presented. Unsupervised self-organizing artificial neural networks are employed to cluster t
The complex character of rural landscapes implies a constant interaction between mind and matter as well as between nature and society. In landscapes, the established division of reality into nature and culture appears all but natural. This book points to the possibilities of regarding landscape as a dialectical process. Landscape is here used as an analytical device to examine nature-culture rela
Optimisation in diagnostic radiology requires accurate methods for determination of patient absorbed dose and clinical image quality. Simple methods for evaluation of clinical image quality are at present scarce and this project aims at developing such methods. Two methods are used and further developed; fulfilment of image criteria (IC) and visual grading analysis (VGA). Clinical image quality de
There is a strong desire for short wavelength (~1 Å), short pulsewidth (<100 fs), high-brightness, transverse and longitudinally coherent light pulses for use by the synchrotron radiation community. These requirements exceed the limits achievable by existing, so-called, "third-generation" light sources, such as the Advanced Photon Source (APS) at Argonne National Laboratory (ANL), USA, the Europea
Using optical spectroscopy, nuclear magnetic resonance (NMR), and differential scanning Calorimetry (DSC), I have studied two different calcium binding proteins that can form kinetically trapped altered states. Calcium is very important in numerous biological processes such as blood coagulation, signal transduction, muscle contraction and bone formation. Calcium binding to proteins regulates these
The thesis addresses different questions, each necessary in the understanding of dynamic fracture initiation and crack propagation in steel. Emphasis lays on dynamic crack propagation experiments performed in the ductile to brittle transition region and possible conclusions, that can be drawn from them. One question regards the physical basis for for viscoplasticity. Dislocation slip by thermal a
A wooden frame system for non-bearing interior walls has been developed. The wall consists of studs, spaced at a regular interval of 900 mm, forming a frame together with the bottom and top p1ate. The framework is sheathed with gypsum plasterboards. The system is developed and adjusted for the purpose of fixing the gypsum plasterboards with glue. A special investigation of the mechanical behaviour
Problematisering: Event som fenomen har under de senaste decennierna fått stor genomslagskraft och har kommit att bli ett populärt forum för skapande av nya tjänsterelationer och affärsmöjligheter. Forskningen kring event ur ett utvecklingsperspektiv är knapp. Vi ser därmed en möjlighet i att bidra med förbättrad kunskap kring tidsmässig eventutveckling genom att plocka in ett tjänsteutvecklingspe
The emergence of markets for online physician consultations -- direct-to-consumers telemedicine (DCT) -- is transforming healthcare services in many nations. The convenience of DCT lowers the cost of seeking care, thus potentially increasing demand. Yet, it is not known whether patients consuming online care turn to traditional providers as well. This is one of the first studies to causally assess
