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This project is about focusing a Gaussian laser beam that has a spatial phase profile applied by a spatial light modulator. The goal is to be able to control the shape, position and phase of the peak at the focus and to split up the peak at the focus into several peaks. Controlling the profile of the beam at the focus has interesting applications for opto-optical modulation. A code was written in
Influenza is the causative agent of the flu. Symptoms usually include fever, coughing, and general malaise. Besides the general societal burden, influenza can also threaten global health when mixing its genome with influenza viruses in birds or pigs, as exemplified by the 1918 Spanish flu pandemic. The virus uses its proteins haemagglutinin (HA) and neuraminidase (NA) to get in or away from host c
Within the last decade, the alt-right movement has migrated from secluded corners of the internet into mainstream media. This migration, and subsequently gained following, challenges traditional views on security by bringing forth social actors that securitize, despite a lack of authority. This takes place on online platforms, such as YouTube, where the political and non-political coexist. This t
The aim of this study was to understand how foster parents reason in their work to support foster children in their contact and process of reunification with their birth parents. The study was based on semi-structured interviews with six foster parents in Sweden which had at least one completed foster care placement. John Bowlby’s attachment theory and Aaron Antonovsky’s theory on KASAM (sense of
Construction sites are key points regarding implementing robot supervision to create more secure, reliable, and free hand-work workspaces. This project’s scope is to develop a complete interpretation of a modern concept of surveillance. For this case, the test scenario is the industrial lab at the Faculty of Engineering, Lund University, known as RobotLab. For its development, an Augmented Reality
The aim of this study was to examine whether or not the Swedish judicial system lives up to the principle of objectivity and equal treatment as stated in the Swedish constitution. The last several years there has been various public state investigations that has shed light on discrimination based on gender within the judicial system. However, despite these findings little further research has been
Pregnancy decisions are notably connected to maternal well-being, particularly for groups disproportionately affected by unplanned and unwanted pregnancies such as adolescents. Midwives are health professionals most likely to care for a pregnant adolescent in a public healthcare setting and spend the most time with her during her pregnancy. However, there are no studies in Peru of the perceptions
Evidence proves that there are several local party sections in Sweden that performs better results in the local election than they do in the national election. This research seeks to examine what these party organizations do in order to be successful in the local election, by studying party sections from the Swedish Centre Party [Centerpartiet] in the 2010 Swedish elections. Five hypotheses, all c
Nya versioner av gamla anticancer läkemedel Varje år dör miljontals av människor av olika typer av cancer runt om i världen. Cancer kan behandlas på olika sätt, och en av de vanligaste behandlingsmetoderna är kemoterapi. Antracykliner är idag några av de mest använda och mest effektiva kemoterapeutiska läkemedel som finns. De första antracyklinerna, daunorubicin och doxorubicin, isolerades på 1960
In order to predict the life expectancy for the tungsten target at the planned European spallation source, the fatigue properties of pure tungsten have been studied at room temperature and 300°C. Constant amplitude, stress controlled fatigue tests have been performed to investigate high cycle fatigue and cyclic hardening effects have been studied using multistep, strain controlled fatigue tests. T
In a market with homogeneous products and no barriers to trade, arbitrage, in the form of parallel imports of pharmaceuticals, is expected to lead to a price convergence in the market as a whole, preferably downwards, as an effect of competitive behavior between the parallel trader and the pharmaceutical producer. Such an effect on prices have however only sparsely been shown in previous research,
The purpose of this study is to find more efficient technologies to solve the problem of capturing and extract a contaminant cloud over a larger surface, e.g. workbench. The main air pollution that the technology shall be able to control is welding fumes, and the main focus is to obtain a contaminant free breathing zone. Today’s products for extracting welding fumes are either an extraction arm th
Populärvetenskaplig sammanfattning: Vulkanisk aska både näring och kris för miljön. Att stora lavaflöden följer av vulkanutbrott och att lava kan ödelägga hela städer och förstöra miljön över stora arealer är välkänt. Men vid vulkanutbrott produceras även tefra, vulkanisk aska, som kan transporteras med vindar i atmosfären och därmed spridas hundratals kilometer från vulkanen. Där tefran sedan falThe effect of tephra input to terrestrial and lacustrine environments was studied through a literature research, focused on pollen- and diatom analyses. A sediment core from the Faroe Islands, containing the Saksunarvatn ash (10 240 cal.yr. BP), was examined as a complement to the literature study. The core was described and analysed for loss of ignition, magnetic susceptibility and amorphous sili
