Sökresultat

This work presents the first data from a calculation engine for synchrotron Microbeam Radiation Therapy (MRT) implemented in the EclipseTM Treatment Planning System from Varian Medical Services. The calculation engine constitutes a simple pencil beam algorithm estimating ‘peak’ dose and of Monte Carlo simulated Peak Valley Dose Ratios (PVDRs) that are used to obtain ‘valley’ dose. The aim of this

This thesis explores the under-recognised yet symptomatic visual motif of two women, a recurring theme within a vast array of pictorial examples. Its primary objective is to construct a theoretical and methodological framework capable of comprehending the multiplicity of images in the form of an image collection: The Atlas of Two Women. This inquiry primarily draws on Walter Benjamin’s concept of

The number of devices connected to the Internet is rapidly increasing. Especially the number of Internet of Things devices. These devices contain software which, like any other software, needs to be updated. With the great amount of devices to update, this calls for a manageable updating solution which does not depend on user interaction. In this thesis we present a solution to dynamically update

The aim of this study was to optimize a function starch-ethyl cellulose film for targeting the therapeutically active substance to the colon in the disease state for patients suffering from inflammatory bowel diseases. This study includes: • The preparation of the polymeric films and the investigation of the characterization (for example mechanical properties, water uptake, dry mass loss, and mic

Sweden has seen an increased number of homeless EU citizens over the last years. There is no consensus among Swedish municipalities on how to handle the issue of housing for vulnerable EU citizens. The purpose of this thesis is to examine the right to housing and why vulnerable EU citizens cannot access the right. The issue is studied on three levels – human rights law, EU law and domestic Swedish

This master thesis was a project in cooperation with Höganäs AB. The aim was to increase the apparent density (AD) of two biomass chars, by three different agglomeration methods. The reason for the investigation is that biomass char could be used as a reducing agent in the sponge iron process at Höganäs AB. The goal was to exchange anthracite in the reduction mixture to agglomerated biomass char.

This study examines the impact of sky-bridges, as an egress component, on total evacuation of a high-rise building by using an evacuation model named Pathfinder. Five scenarios, with different combination of aspects such as height of the building, number of sky-bridges (and the subsequent inter-distance between them), and people allocation have been simulated. The comparison between the results fr

The Memorial Sloan Kettering Cancer Center (MSKCC) recommendations on prostate cancer screening were developed in response to three limitations of previous screening guidelines: insufficient evidence base, failure to link screening with treatment, and lack of risk stratification. The objective of the recommendations is to provide a schema for prostate cancer screening that maximizes the benefits,

Introduction: Rimegepant is an oral small-molecule calcitonin gene-related peptide receptor antagonist approved in several countries for acute treatment of migraine and preventive treatment of episodic migraine in adults. This review summarizes the evidence, published to date, for the use of rimegepant as an acute or preventive treatment of migraine. Areas covered: A brief overview of migraine, th

Recently, the incentive structure facing doctoral students and researchers in economics has changed significantly in many European countries as a result of the adoption of the US approach to evaluating research output. This poses a threat to the development and position of the subject of economics in Europe since evaluation for promotion is characterised by an excessive focus on publishing in the

Considering the Islamic perspective on forced migration and displacement, along with the conceptual framework of Islamic social welfare instruments as tools for wealth redistribution to support those in need, this study explores the potential complementarity between Islamic and conventional financing in addressing refugees' basic needs and economic empowerment. Specifically, this research examines

The search for drugs that modulate NMDA receptors has been very active in the latest decades since they play a pivotal role in neuronal death and in several neurological conditions, including stroke, traumatic brain injury, and neurodegenerative diseases. Activating the receptor evokes an entry of calcium into the neuron, thus leading to a rapid depolarization that can be measured using electrophy

Performance of a proton exchange membrane (PEM) fuel cell is very sensitive to its electric resistance appearing in its functional components. In this paper, the electric resistance as well as related parameters of a cell is evaluated by a recently developed numerical method in the through-plane direction of the electrodes. The results show that the channel/rib structure leads to non-homogeneous e

BACKGROUND: Perinatal stroke refers to a diverse but specific group of cerebrovascular diseases that occur between 20 weeks of fetal life and 28 days of postnatal life. Acute treatment options for perinatal stroke are limited supportive care, such as controlling hypoglycemia and seizures. Stem cell-based therapies offer a potential therapeutic approach to repair, restore, or regenerate injured bra

The cooperative emission of interacting nanocrystals is an exciting topic fueled by recent reports of superfluorescence and superradiance in assemblies of perovskite nanocubes. Several studies estimated that coherent coupling is localized to a small fraction of nanocrystals (10−7-10−3) within the assembly, raising questions about the origins of localization and ways to overcome it. In this work, w

Least squares identification is considered from the Bayesian point of view. A necessary and sufficient condition for consistency almost everywhere is given under the assumption that the data are generated by a regression model with white and Ganssian noise.

We develop a simulation method for Markov Jump processes with finite time steps based in a quasilinear approximation of the process and in multinomial random deviates. The second order approximation to the generating function, Error$=O(dt^{2})$, is developed in detailand an algorithm is presented. The algorithm is implemented for a Susceptible-Infected-Recovered-Susceptible (SIRS) epidemic model a

Constructing in rock will always involve unforeseen rock conditions. This involves a large risk to a project and can in the end entail delays and extra costs. To minimize the risks, an optimized pre-investigation program has to be conducted where essential information is gathered in order to make the best decisions throughout the construction project. In this work the main focus has been on the ap