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Machine-learning methods have in recent years seen a great deal of use in condensed matter physics. In this thesis we apply such methods, specifically machine-learning with artificial neural networks, to the equilibrium and non-equilibrium description of the Hubbard and Hubbard-Holstein models. In the framework of ground-state density functional theory we reproduce results from the literature rega
The aim of this study was to investigate if the lack of information and school polices were reasons that teachers in Malmö municipality felt uncertainty when filing a report of maltreatment. A quantitative study has been conducted by collecting data using a digital questionnaire. 35 teachers in Malmö municipality, out of a population of 3040 answered the questionnaire. The teacher’s answers were a
This thesis describes the development of a safety system for a mobile robotic cell for an autonomous grinding machine. The utilization of autonomous construction equipment presents the opportunity to streamline construction processes and save time and money. This entails the development of sufficient safety equipment lowering the risk of accidents. The goals of the project are the identification o
In our pursuit of carbon neutrality, drastic changes to generation and consumption of electricity will cause new and complex demands on the power grid and its operators. A cheap, promising, and under-exploited mitigation is real-time power grid topology optimization (RTTO). However, beyond the simplest action of line switching, the combinatorial and non-linear nature of RTTO has made all computati
Volontärresor har blivit ett allt mer populärt sätt att resa och det finns numer organisationer som erbjuder mängder av projekt i flera prisklasser och som passar flera önskemål. I denna uppsats appliceras en kvalitativ innehållsanalys med deduktiv ansats på fyra populära kommersiella volontärrese-organisationer med syftet att förstå hur projekten är utformade utifrån teorier om givande och motiva
Among all cancer types, liver cancer has the second highest mortality rate. HCC is the most common liver cancer and patients usually have a very poor prognosis. The standard-of-care drug Sorafenib extends the life expectancy with just two to three months, making the development of new drugs for the treatment of HCC an important area of research. Here, the pharmaceutical candidates SfA1 and SfA2 w
Tidigare forskning och litteratur kring fördelarna med affärssystem i molnet anser vi vara något generell och inriktning på företag inom en specifik bransch är ett förhållandevis outforskat område. Vi har därför valt att inrikta studien på tillverkande företag för att se hur de upplever de fördelar som omnämnts i tidigare forskning kopplat till affärssystem i molnet. Inriktningen på tillverkande f
Eutrophication is one of the most threatening issues to water quality in natural water. It can cause problems of the ecosystem, with for example, lowering the biodiversity of the community. The main reason for eutrophication in natural waters is the leakage of nutrients from nearby crop-fields. Too much of nutrients reaches the water and negatively interferes with the water community. To study the
Hydropower is developing fast across the globe to accommodate the increasing need for electric energy. It is generally considered to be a close-to-zero emission source of energy, but studies have shown that reservoirs and dams have a substantial emission of greenhouse gas, especially methane. Measurements of methane emissions from different reservoirs have very varying results, partly because of t
2-Bromoethyl glycosides can easily and in high yields be transformed into sulfones by treatment with a suitable thiol followed by oxidation with mCPBA. The observation that the so formed sulfones were cleaved by treatment with NaOMe/MeOH was used to design a new safety catch linker for synthesis of glycoconjugates on solid support. (C) 2005 Elsevier Ltd. All rights reserved.
This article summarizes the status of the ATLAS detector and its commissioning as of autumn 2006, one year before the expected LHC start-up. The initial running scenarios and goals for B physics are presented for the foreseen pilot run with 900 GeV centre-of-mass energy in autumn 2007, as well as for the first physics run in 2008 at the nominal centre-of-mass energy of 14 TeV.
Introduction of duty cycle in the binary addressing technique is proposed to enable integration of liquid crystal display drivers with a digital system in a single chip. An analysis of this technique with duty-cycle control is presented. Effects of duty-cycle control on brightness uniformity of pixels in the liquid crystal display are discussed. A system on chip implementation of the technique is
A summary of the aging and material validation studies carried out for the ATLAS Transition Radiation Tracker (TRT) is presented. Particular emphasis is put on the different phenomena observed in straw tubes operating with the chosen Xe/CF4/CO2 mixture. The most serious effects observed are silicon deposition on the anode wire and damage of the anode wire gold plating. Etching phenomena and active
Overwhelming Clostridium septicum infection in 2 children, 1 and 4 yr old, with acute lymphoblastic leukemia and B-cell non-Hodgkin malignant lymphoma, respectively, as well as fatal C. perfringens infection in a 3-yr-old child with histiocytosis-X are reported. A neutropenic patient with fever, abdominal symptoms and hypotension--but otherwise being well--must be suspected of having clostridial d
To achieve software product quality professional skill and knowledge is important. The way to reach software product quality is often structured approaches for software quality such as SPI and CMM which have been criticized for lack of a knowledge perspective. The view taken in this study is that software product quality is related to interpretations and understanding in practice, and thus on prac
BACKGROUND: Men with gynecomastia may suffer from absolute or relative estrogen excess and their risk of different malignancies may be increased. We tested whether men with gynecomastia were at greater risk of developing cancer.METHODS: A cohort was formed of all the men having a histopathological diagnosis of gynecomastia at the Department of Pathology, University of Lund, following an operation
