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Popular Abstract in Swedish Denna avhandling behandlar termoelektriska effekter, framförallt i lågdimensionella halvledarsystem. Åtskilliga nya fenomen diskuteras, undersöks och förklaras. Introduktionsdelen innehåller en sammanfattning för allmänheten på svenska samt en introduktion till termoelektriska effekter på engelska. Detta görs dels med hjälp av en semi-klassisk teoretisk modell, men äveThis thesis investigates thermoelectric effects, predominantly in low-dimensional semiconductors. Various novel phenomena are predicted, investigated and discussed. The introductory part of the thesis contains a summary in Swedish for the general public as well as a general introduction to thermoelectric effects using both a semi-classical theory valid for diffusive electron transport, as well as

Experimental studies characterizing the reactivity of siliceous materials, such as biogenic silica from the field or laboratory cultures, typically require organic matter removal prior to experimental analysis. Consequently, it is highly desired to develop and optimize a cleaning protocol that imposes minimal alterations to the reactivity of the siliceous substrate and can be robustly employed amo

Demand-responsive control of electrically heated hot water storage tanks (HWSTs) is one solution, already present in the building stock, to stabilise volatile energy networks and markets. This has been put into sharp focus with the current energy crisis in Europe due to reduced access to natural gas. Furthermore, increasing proportions of intermittent renewable energy will likely add to this volat

Obesity is a genetically heterogeneous disorder. Using targeted and whole-exome sequencing, we studied 32 human and 87 rodent obesity genes in 2,548 severely obese children and 1,117 controls. We identified 52 variants contributing to obesity in 2% of cases including multiple novel variants in GNAS, which were sometimes found with accelerated growth rather than short stature as described previousl

PurposeThe purpose of this paper is to explore the environmental impact of logistics service provider (LSP) activities in the light of customer priorities and the fragmentation of the road haulage industry in Europe. It also explores the extent to which LSPs can actually monitor the environmental impact of logistics activities in the supply chain (SC).Design/methodology/approachThe research is bas

A total of 1280 80-year-old men were invited to a medical examination to study common risk indicators for cardiovascular disease (CVD) in the elderly. From the pool of 811 responders (63.3%), all 122 individuals who fulfilled our inclusion criteria were assigned to one of four groups: (1) no CVD, non-smokers; (2) no CVD, smokers; (3) CVD, smokers; (4) CVD, non-smokers. A telephone interview with 7

One of the most important topics in financial literature is the Efficient Market Hypothesis (EMH). Recent financial research has questioned this hypothesis, and many authors have reached the conclusion that a contrarian strategy creates abnormal positive returns. In other words a strategy profiting buying losers and selling winners. To explain this market behaviour researchers have come up with a

Inom ramen för svensk straffprocessrätt tillåts användande av flertalet olika tvångsmedel. Tvångsmedlet häktning regleras i 24 kap. RB och kan under vissa förutsättningar kombineras med restriktioner. Inskränkningar i den enskildes privata sfär är emellertid inte helt okontroversiellt och resulterar i motstående intressen. Sveriges tillämpning av häktning i kombination med restriktioner har under Within the framework of Swedish criminal procedure, the use of several different enforcement measures is permitted. Forced detention in the form of comittal is regulated in Chapter 24 RB and may under certain conditions be combined with restrictions. However, restrictions impose a violation on the private sphere of the individual and are not completely uncontroversial which results in opposing int

The purpose of this thesis is to gain an understanding of the credibility gap between consumers and marketing strategies that aims at gaining moral legitimacy by taking a stand, since it is becoming increasingly important for companies to gain moral legitimacy. By triangulating theories within consumer culture theory, corporate social responsibility and organizational legitimacy and conducting a q

Having a specialized editor or IDE has become commonplace for many programming languages. Smaller languages, especially domain-specific ones that normally have very narrow usage areas, often lack such convenience features due to their naturally small user base. Tools for implementing editor support for these languages are called language workbenches. Unfortunately these often lack features for mor

The data visualization softwares Qlikview and Qlik Sense are based on an associative data model, and this thesis analyzes different tools and methods for solving 0-1 integer programs as well as examines their applicability to the computational engine behind these softwares. The first parts are dedicated to a theoretical background on mathematical optimization, linear programming and Qlik’s impleme

Purpose/Background: Appendectomy is the standard treatment of acute appendicitis (AA) but conservative treatment has gained success. The need for follow-up after conservatively treated AA is unclear. Hypothesis/Aim: This study evaluates follow-up, recurrence and appendiceal malignancy in conservatively treated AA. Methods/Interventions: This retrospective study included patients with conservativel

Digital sustainability education (DSE) is becoming increasingly relevant in higher Education for Sustainable Development (ESD) and spreads globally. DSE is fueled by the Covid-19-pandemic and urges lecturers, students and universities alike to break new ground in academic teaching. DSE impacts established approaches to ESD and raises questions of ... appropriate online teaching concepts, tools and

Objective: To examine the relation between different types of alcoholic drinks and upper digestive tract cancers (oropharyngeal and oesophageal). Design: Population based study with baseline assessment of intake of beer, wine, and spirits, smoking habits, educational level, and 2-19 years' follow up on risk of upper digestive tract cancer. Setting: Denmark. Subjects: 15,117 men and 13,063 women ag

While sustainable agriculture relies on natural pest control, we lack insights into the relative importance of bottom-up and top-down factors on pest levels, especially along broad environmental and management gradients. To this aim, we focused on bottom-up and top-down control of herbivore damage in sixty sites in the centre of origin of Arabica coffee in southwestern Ethiopia, where coffee grows