Popular Abstract in Swedish En stor fråga för människor, och särskilt fysiker, är hur Universum skapades. Numera känner alla till Big Bang teorin, där Universum började i en mycket våldsam händelse för fjorton miljarder år sedan. I det unga Universum (tusentals år efter Big Bang), var materien så het att elektroner och protoner inte var bundna tillsammans i atomer. Detta kallas plasma, och är matThe chain from hadron collisions to the physics results requires several important links. First the outcome of the collision is measured by the detectors. Then, the signal from the detector is processed and transformed into information relevant for the study of the physics processes. The data is made available to physicists to be analysed and used to improve theories. This thesis presents work don

Det finns två huvudargument mot patent på gener: Det är oetiskt att patentera mänskliga substanser och organismer och skyddet för angelägen forskning begränsas. Ofta framförs de bägge invändningarna samtidigt. En etiskt resonerande pro-life falang har invändningar mot forskning som rör livets villkor medan de tekniskt orienterade forskarna tvärtom vill förhindra att patentskydd sätter käppar i hju

The overarching purpose of this study is to put the experiences of clandestine asylum seekers (rejected asylum seekers who, avoiding deportation, continue to stay in Sweden) at the centre of a critical re-reading of Swedish migration and gender regimes. Further, the study – in dialogue with feminist and postcolonial perspectives – aims to analyse the gendered experiences of migration and clandesti

Analytical Multiple-Input Multiple-Output (MIMO) models are often attractive due to their low complexity when analyzing possibilities and limitations in the system. In this paper we outline a a possible dual link extension of an analytical MIMO channel model and investigate its suitability based on measurements of a dual link MIMO scenario. The extension is based on the correlation matrix distance

Option valuation is typically done under the assumption of perfect knowledge about latent states (such as stochastic volatility) and parameters, an assumption that is rather dubious from a statistical point of view! This needs to be accounted for without introducing arbitrage. Fourier based methods for computing (vanilla) option values are nowadays the bread and butter in many risk management sys

We present an algorithm, called Bonsai, for rapidly building bounding volume hierarchies for ray tracing. Our method starts by computing midpoints of the triangle bounding boxes and then performs a rough hierarchical top-down split using the midpoints, creating triangle groups with tight bounding boxes. For each triangle group, a mini tree is built using an improved sweep SAH method. Once all mini

In secure computing systems, isolation between different components is normally the basis for security. However, ab- solute isolation is seldom desired nor practical. Often for the system to function, a secure communication channel between otherwise isolated components is also needed. In this work, we consider implementation of the secure Remote Procedure Call (RPC) mechanism defined by the Global