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Recent events have shown that a fire in a boat storage facility may result in severe damages regarding health, economic values and the environment. The Swedish guidelines in this area are rather old and since the boating industry has evolved in the last decades an overhaul might be needed. This report has especially validated the recommended safety distances between groups of boats. Furthermore th
In this study a series of tests have been performed in order to evaluate the air quality of Perstorp municipality. From the SMED database comparisons of several emissions between Perstorp, the neighbouring Klippan municipality, Scania and Sweden were made. Due to its prevalent industry, the emissions from Perstorp were often significantly higher than that of the other groups seen per capita. In or
In this thesis top quark decays to a charm quark and a (CP even) Higgs boson are investigated in a general two-Higgs-doublet model (2HDM) allowing flavour-changing neutral currents. The theory behind 2HDMs is introduced and the specific choice of 2HDM is put to test under theoretical constraints that require the potential in the Lagrangian density of the model to satisfy vacuum stability, tree-lev
In recent years the number of connected devices and the demand for high data-rates have been significantly increased. This enormous growth is more pronounced by the introduction of the Internet of things (IoT) in which several devices are interconnected to exchange data for various applications like smart homes and smart cities. Moreover, new applications such as eHealth, autonomous vehicles, and c
The purpose of this thesis is to examine whether active fund management gives higher risk adjusted returns in comparison to index funds. This will be done by the use of three different performance measures, Sharpe ratio, Treynor ratio, and Jensen’s Alpha, the aim is to examine 116 mutual funds in the Swedish fund market over the time period of 2016-2021. By using Ordinary Least Squares, with a dum
With the emergence of the digital spaces, modern society has been witnessing the transformation of the public sphere, which is mostly altered by the new means of communication. Simultaneously, civic discussions that are taking place within the public sphere, are inevitably going through the same transformation and are now more and more often found in the digital spaces. This thesis is taking on th
The electricity sector is in the beginning of a large shift from centralized dispatchable production to distributed variable production. With this necessary change, new challenges arise. One crucial challenge is related to upholding the system balance in the power grid. In this master thesis, a Battery Energy Storage System (BESS) has been implemented in an HVDC-system with large amounts of Wind P
This paper estimates and simulates a New-Keynesian small-scale DSGE macro model. The model consists of the hybrid forms of the Phillips curve and the IS curve, and is closed with a Taylor-type feedback rule allowing partial adjustment of the monetary policy instrument. We estimate the three-equation system simultaneously on Swedish data 1995:Q1 to 2014:Q4 with the FIML estimator. The empirical par
Abstract Author: Annelie Paulsson Title: They are so charming individuals – About Children’s Advocacy centres (”Barnahus”), collaboration and the child’s right to be listen to. Supervisor: Claes Levin Assessor: Staffan Blomberg The purpose of this study was to examine how children are treated, to what extent they are allowed a voice of their own, and whether or not this voice is heard in the proce
Our aim is to study if and how LGBTIQ has been made invisible in the public library context, and how this can be countered. In order to do this, we have studied the public library of Hallonbergen, located in Sundbyberg, Sweden. Hallonbergen is the first library in Sweden certificated by RFSL (The Swedish Federation for Lesbian, Gay, Bisexual and Transgender Rights). The certificate shows that they
Purpose: To evaluate the validity and the reliability of the Oura Ring Generation 3 (Gen3) with Oura Sleep Staging Algorithm 2.0 (OSSA 2.0) through multi-night polysomnography (PSG). Participants and methods: Participants were 96 generally healthy Japanese men and women aged between 20 and 70 years contributing with 421,045 30-s epochs. Sleep scoring was performed according to American Academy of
Light scattering by zooplankton was investigated as a major factor undermining transparency camouflage in these pelagic animals. Zooplankton of differing transparencies – including the hyperiid amphipod Anchylomera blossevillei, an unknown gammarid amphipod species, the brine shrimp Artemia salina, the euphausiid shrimp Euphausia diomedeae, the isopod Gnathia sp., the copepods Pontella karachiensi
Nanowires are important candidates for use in future electronics, photonics and thermoelectrics applications. We focus here in particular on nanowires for use in thermoelectric power generation and present a method of fabricating dense uniform InAs nanowire arrays amenable to future incorporation of advanced heterostructures that could further increase the thermoelectric performance of these nanow
Understanding factors that limit gene flow through the landscape is crucial for conservation of organisms living in fragmented habitats. We analysed patterns of gene flow in Elater ferrugineus, an endangered click beetle living in old-growth, hollow trees in a network of rural avenues surrounded by inhospitable arable land. Using amplified fragment length polymorphism (AFLP) data, we aimed to eval
Regime shifts in shallow lakes are typically characterized by submerged macrophyte (clear water regime) or phytoplankton (turbid regime) dominance. Climate warming is expected to affect water quality and facilitate turbidity in lakes, but we may also expect synergistic effects on organisms' interactions from climate and local specific dynamics in lakes. We here examined long-term changes in phytop
Popular Abstract in Swedish Arktiska ekosystem utgör en viktig del av det globala terrestra utbytet av växthusgaser och energi med atmosfären. I ett klimat som förändras, särskilt uttalat i Arktisk, bör tänkbara framtidsprognoser av växthusgasutbytet från dessa områden övervägas noga när framtida klimat modelleras. En förutsättning för detta är detaljerade studier av nyckelprocesser som påverkar vArctic ecosystems represent an important component in the global terrestrial exchange of greenhouse gases and energy with the atmosphere. In the changing climate, which is most pronounced in the Arctic, the possible scenarios of greenhouse gas exchange response should be seriously considered in predictive climate modelling efforts. As a prerequisite for this, detailed studies of key processes affe
During more than three decades, corporate non-financial and sustainability reporting has been widely conceived as a voluntary practice, a matter of going beyond the requirements of the law. Therefore, it has been traditionally overlooked by legal and socio-legal scholars. However, during the last decade things have rapidly changed. We are currently witnessing the emergence of a mix of mandatory a
We present a new method for real-time render- ing of multiple recursions of reflections and refractions. The method uses the strengths of real-time ray tracing for objects close to the camera, by storing them in a per-frame constructed bounding volume hierarchy (BVH). For objects further from the camera, rasterization is used to create G-buffers which store an image-based representation of the sce
