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This thesis deals with the modelling of atoms and ions. In heavy systems, where the effect of the nuclear size must be considered, a fully relativistic treatment based on the Dirac-Coulomb Hamiltonian is needed. Chapter two of the thesis provides an introduction to the basic principles of the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method, which is a variational approach f
Lera är ett naturligt förekommande material och består utav små finkorniga lermineraler, vilka utgörs till stor del av laddade nanopartiklar, även kallade lerflak. Dessa har en platt form med en tjocklek på en miljarddels meter (1 nanometer) och diametern kan variera alltifrån fem till tusen gånger större än tjockleken. Detta kan jämföras med ett A4-ark, där längden på kortsidan är tusen gånger stClay minerals consist of clay platelets, which are anisotropic in both size and charge, and these can form a lamellar structure depending on the size, making it a seemingly perfect model system for an electrical double layer. The situation is however, from a structural point, slightly less ideal. Clay is a challenging system since it has a polydisperse distribution of anisotropic clay platelets an
A software application combining process and input–output analysis (EAP) was used toanalyze 218 consumer products and services for environmental impacts over their lifecycle. The results are available as carbon dioxide equivalents, land use and water use perkg and per SEK. The products and services were chosen either because they are consumedby many Swedish consumers today or because they may be c
In this thesis, we investigate and develop new methods for efficient and functional use of resources in edge networks. Setting this work aside from previous work, we study User Generated Content (UGC) such as social media information and data generated in the new emerging Internet of Things systems. We present efficient solutions for placing such content and managing which network resources should
This thesis reassesses the framework we have come to accept around the dynamics of slavery in a series of papers which, together, shed new light on the economics of coercion. Employing a range of newly digitized historical databases covering the economic life and genealogical history of the British Cape Colony through the 18th and 19th centuries, it explores the determinants of labor coercion in l
Background:Sleep affects psychiatric health and perceived stress during adolescence.Objective:The first aim of this study was to investigate the prevalence of poor sleep in a sample of Swedish adolescents aged 15 to 19 years. The second aim was to investigate correlations between: a) sleep and psychiatric symptoms and; b) sleep and perceived stress. The third aim was to examine possible sex differ
The extreme weather in terms of drought and heat, which prevailed in Northern Europe during the growing season 2018, had serious consequences for agriculture and farmers in Sweden. Many questions regarding farm production came to a head as drought struck directly against farmers land, economy and wellbeing. This paper argues that it is essential to deeper investigate farmer’s and other land user’s
The extreme weather in terms of drought and heat, which prevailed in Northern Europe during the growing season 2018, had serious consequences for food production and farmers in southern Sweden. Many questions regarding farm production came to a head as drought struck directly against farmers land, economy and wellbeing and hence created vulnerability. This paper analyzes how farmers experienced th
Ensuring engagement with the Sustainable Development Goals (SDGs) by younger generations is critical to the kind of transformational change necessary to achieve the goals, both now and after 2030. In encouraging stronger engagement, an understanding of the socio-ecological values held by children towards ecosystems is critical information in constructing effective, science-based policy for educati
The expanding energy justice scholarship increasingly discusses the importance of equity concerns in the context of global decarbonization. How to equitably distribute the benefits and burdens of energy systems and ensure an inclusive and socially acceptable change, constitutes vital prerequisites for the transition to a low-carbon society. Energy, in a Northern context, is seen as gender-neutral;
While pipe biofilms in DWDSs (drinking water distribution systems) are thought to affect the quality of distributed water, studies regarding the microbial processes are impeded by the difficulties in accessing biofilm undisturbed by DWDS maintenance. In this study, pipe sections were removed from a fully operational DWDS for biofilm sampling over two years and three months, and before and after st
