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Din sökning på "swedish" gav 91199 sökträffar

Making Sense of Suffering : Holocaust and Holodomor in Ukrainian Historical Culture

This study deals with the problem of how Ukraine has incorporated and made use of the Holocaust and the 1932?1933 famine (Holodomor) in its new national history and historical culture. The investigation departs from the increased interest in and attention devoted to the Holocaust in recent years. Various institutions and actors have brought the mass murder of Europe's Jews forward as an important

Image Processing for Quantitative Scintillation-Camera Imaging. Application to Radionuclide Therapy.

Individual-based determinations of the absorbed dose in radionuclide therapy largely rely on absolute measurement of the activity distribution and its redistribution over time. Scintillation-camera imaging is the most commonly employed measuring technique, applied in planar or SPECT mode, sometimes in combination with structural images from CT. In this thesis, methods for processing and analysis o

Thermostable Xylanases from Rhodothermus marinus

Abstract Hot springs in Iceland can serve as sources of thermophilic, xylanolytic bacteria secreting very thermostable xylanolytic enzymes. The aerobic, thermophilic bacteria Rhodothermus marinus secretes multiple xylanases and xylosidases. One of the xylanases was purified to electrophoretic homogeneity and was characterized. The N-terminal sequence showed no homology with other xylanases. The p

Pharmacophore Refinement and Lead Optimization - A study of the benzodiazepine site of the GABAA receptors

Structure activity relationship studies of synthetic flavone derivatives have been utilized to refine and evaluate a pharmacophore model of the benzodiazepine binding site of the GABAA receptors, originally developed by Zhang et al. (Drug Des. Discovery 1995, 12, 193-248). In addition to the previously proposed pharmacophore elements, two steric repulsive regions have been added to the model and t

Creativity in the School Context

The main aim of the present investigation was to highlight middle childhood creativity, and the children’s perspective on creativity, in contrast to many, if not most, studies that investigate creativity from an adult perspective and a scholarly definition. This dissertation consists of two quasi-experimental studies, and one interview study. Study I investigated if, and how, state anxiety, brough

The optic tectum of the salmon:site of interaction of neurohormonal photoperiodic and neural visual signals. The GABAergic neuronal system and melatonin receptors.

Melatonin is a neurohormone which mediates photoperiodic signals from the pineal organ to the brain. GABA (g-aminobutyric acid) is the major inhibitory transmitter in the central nervous system. It has previously been suggested that functional interaction exists between central binding sites for GABA/benzodiazepines (GABAA/bzd receptors) and melatonin in the central nervous system, and that GABA a

On Signal Dependent Basis Functions, Estimation of Event Related Potentials and Multiple Window Spectrum Analysis

The three parts of this thesis are different examples of utilization of signal dependent basis functions in the estimation procedure. The first part surveys a number of parametric methods applied to estimation of single ERP (P300). The basis functions of the sERP are the damped sinusoids where the frequency and damping factor are estimated from the signal. The algorithms for white noise disturban

Quantum Devices from the Assembly of Zero- and One-Dimensional Building Blocks

This thesis describes novel methods for the fabrication of nanometer-scale electronic devices, such as single-electron transistors and resonant tunneling diodes, from wire- and dot-shaped building blocks. The first part of the thesis describes the manipulation of metal nanoparticles and carbon nanotubes using an atomic force microscope. Single-electron transistors were realized by moving nanotubes

Marsupial Mitogenomics

The relationships of the mammalian infraclass Marsupialia have been investigated by phylogenetic analysis using completely sequenced mitochondrial genomes. The organisation and structure of the marsupial mitochondrial genomes deviates from the general mammalian structure. Several features, not known from other mammalian mitochondrial genomes have been shown to be present in all seven living marsup

Cytochrome c biogenesis in Bacillus subtilis. Identification and analysis of ccdA

Cytochromes function in electron transfer reactions, e.g. in respiratory systems, and contain haem as a prosthetic group. Cytochromes of the c-type differ from other cytochromes in that haem is covalently attached, via thioether linkages, to two cysteine residues in a conserved sequence motif in the protein, Cys-Xaa-Yaa-Cys-His. The functional location of c-type cytochromes in bacteria is on the o

Green Colloid Chemistry: Characterization of Environmentally Friendly Nonionic Surfactant Systems

Phase diagrams of mixed alkylglucoside surfactants, n-nonyl-b-D-glucopyranoside and n-decyl-b-D-glucopyranoside (C9G1 and C10G1) have been examined for the purpose of determining the microstructure surrounding a closed-loop miscibiliyt gap. There are large deuterium isotope effects on the phase diagram. NMR-self diffusion, cryoTEM and TRFQ experiments show the presence of long interconnect network

Education, Health, and Earnings – Type 1 Diabetes in Children and Young Adults

This thesis consists of four independent exploratory research papers contributing to the economic literature on child and adolescent health, and adult educational and labor market outcomes. Each paper considers type 1 diabetes and focuses on onset over a specific age span. An overall conclusion of this thesis is that individuals with type 1 diabetes deviate from peers without diabetes, irrespectiv

Minnet går gränsvakt. Fyra poeter ur 1970-talets grekiska diktargeneration

The primary aim of the present study is to reveal the creative awakening of Michalis Ganas, Maria Kirtzaki, Tzeni Mastoraki and Kostas Papageorgiou, four poets of the Greek 1970s Generation. All four poets were born during the decade of the 1940s. The thesis approaches the poets entire authorship from their debut, end of 1960s beginning of 1970s, until the present day, to distinguish a number of c

Shards of Iron Age Communications. A ceramological study of internal structures and external contacts in the Gudme-Lundeborg Area, Funen during the Late Roman Iron Age

The objective of ceramology is to describe pottery craft traditions; the potters, their production, social organisation and the use of the products. Through this the human actions surrounding the pottery are studied. The objective of the research presented in this thesis is to study patterns of contacts between different, contemporary sites within a limited area through a ceramological analysis of

Studies on the alpha-recoil implantation of 214Pb and 210Pb in glass surfaces,Implications for retrospective radon measurements

Glass sheets are often used in radon surveys to estimate retrospective radon concentrations, as radon progenies are embedded in the upper surface layer. The implanted activity is influenced by a variety of different environmental conditions. In this work, experimental methods based on etching to determine the depth distribution of recoil-implanted 210Po in glass from radon decay in air were develo

Crossflow Microfiltration of particle Suspensions - The influence of hydrodynamics and physico-chemical interactions

Crossflow microfiltration is a technique to separate suspended particles (or cells or droplets) from liquids by use of a membrane that is permeable for the liquid but impermeable for the particles. The permeate flow drives particles to the membrane surface, where they may be deposited and form a fouling layer. To limit the growth of this fouling layer a flow is applied tangentially to the membrane

A knowledge process perspective on the improvement of software processes

The number of software-based products is increasing, which is why the importance of an efficient software development process is also increasing, from a competitive advantage perspective. For years, software development organizations have been plagued by poor product quality and high development costs. Studies in software process improvement (SPI) have concerned themselves with improving the softw

Resultatenheter i kommunalteknisk verksamhet : struktur, process och effekt

The focus of this thesis is on the most widespread organizational change that the public sector has gone through during the 1990s: the introduction, implementation and continuous use of profit centers. There are three major reasons for studying profit centers. First, profit centers appear to have become a permanent element in the management of local government. Second, profit centers were used dif

Aromatic Allylation via Diazotization; Application in synthesis of heterocyclic compounds

A new method for allylation of aromatic systems has been developed. A number of arylamines were converted via diazotization to the corresponding allylaromatic compounds using tert-butyl nitrite and an excess of allylic bromides with complete regioselectivity. Electron-withdrawing groups, in the aromatic moiety, were necessary to obtain good yields. The convenient experimental procedure allowed the

Vascular mechanical properties and endothelial function with special reference to pregnancy and hormonal influences

Cardiovascular disease (CVD) is one of the leading causes of mortality and morbidity. Early recognition of vascular changes, both structural and functional, may help to identify individuals at risk for CVD. Using modern ultrasound techniques – the echo-tracking technique for assessment of stiffness in large arteries and flow-mediated dilatation of the brachial artery as an indicator of endothelial