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Timber-concrete composite structures were originally developed for upgrading existing timber oors, but during last decades, they have new applications in multistorey buildings. Most of the research performed on these structures has focused on systems in which wet concrete is cast on top of timber beams with mounted connectors. Recently investigations on composite systems were performed at Luleå Un
Regulation of cell division in Streptomyces venezuelae -Popular science summary- Cell division is essential for bacteria to reproduce. This process involves FtsZ, an important and highly conserved cell division protein in bacteria. FtsZ plays a major role in the division mechanism by forming ring-like structure at the site of division, recruits and organizes other cell division proteins at the di
China has had an unbelievable economic development over the last 25 years. Their gross domestic product (GDP) has increased by more than 9% yearly. Since the middle of the 1980’s this trend has become more and more dependent on China’s private firms. China’s private firms are much more effective than their counterpart state-owned enterprises. Despite this fact, private firms are still treated very
Which expectations did leading debaters place on fiction as an instrument in achieving societal changes hoped for by introducing the Public library? How can the value of fiction be described in relation to the mission of the Public library, according to these moulders of public opinion? Place and timeframe for this thesis is Sweden around the years 1905-1912 (period of formation of the Public libr
Abstract This research focuses on the lives of three Icelandic women born early in the 20th century. The aim of this study was to try to understand how these women viewed their life and how they experienced the changes that Icelandic society has undergone in the 20th century. The women are viewed as active agents that shaped their own lives but also had to live within material and social constrai
Presence of lactic acid bacteria on a beer brewery The purpose of this thesis is to help a brewery solve a mayor problem regarding the quality of their product. The brewery has for a considerable amount of time had a problem with the presence of lactic acid bacteria in their product, which has caused it to acid long before the expiration date has passed. The root of the problem could be establishe
Trots att en domstolsförhandling är av stor vikt för många barn som har utsatts för sexuella övergrepp visar undersökningar att endast tio procent av anmälningarna om sexualbrott mot barn leder till åtal. Syftet med denna uppsats är dels att presentera de åtgärder som företas i förhållande till målsäganden under förundersökningen, dels att fastställa om det finns faktorer som är avgörande för huruA trial is very important for children who have been sexually abused, however studies show that only ten percent of police reports lead to a prosecution. The purpose of this essay is to discuss the current procedure for investigating reports of sexual abuses against children. The paper will determine whether there are factors that are relevant if a case is prosecuted or not and thus can contribute
Amyloid fibrillering, en process där peptider (små protein) klumpas ihop, är idag associerat med en rad sjukdomar såsom Alzheimers sjukdom och diabetes typ 2. En peptid som är associerad med diabetes typ 2 är IAPP. Peptiden har hittats fibrillerad i bukspottskörteln i många patienter med diabetes typ 2. I tidigare studier har det hittats en koppling mellan små plaster, så kallade nanoplaster, och The impact of nanoparticles on amyloid fibrillation has been studied for some time due to the amount of nanoparticles that can be found in nature due to human release. Previous studies have shown that different nanoparticles may affect the length of the lag phase of the fibrillation process. This has been studied on peptides such as amyloid beta and islet amyloid polypeptide. Research has shown th
This masters thesis handles segmentation of blood vessels in Wistor-rat lungs, scanned by a µm-CT scanner. These scans are very detailed 3D-volumes and have been rescaled to a more manageable size of 1024 × 1024 × 1024 voxels per volume. The main goals of the thesis is to find a more efficient way to perform segmentation in medical images and thus semi-supervised segmentation techniques have been
White dwarf stars represent the last evolutionary stage of most stars in the Universe. As many of half of these stars are known to have metals in their atmospheres, that must have entered the atmosphere recently. Some also have observable debris discs, hinting that remnant exoplanets provide an important puzzle piece. However, we do not know the full extent of their role, as it is very hard to obs
Implicit motives, nonconscious needs that influence individuals’ behaviors and shape their emotions, have been part of personality research for nearly a century but differ from personality traits. The implicit motive assessment is very resource-intensive, involving expert coding of individuals’ written stories about ambiguous pictures, and has hampered implicit motive research. Using large languag
Correlations in azimuthal angle extending over a long range in pseudorapidity between particles, usually called the “ridge” phenomenon, were discovered in heavy-ion collisions, and later found in pp and p–Pb collisions. In large systems, they are thought to arise from the expansion (collective flow) of the produced particles. Extending these measurements over a wider range in pseudorapidity and fi
Detta arbete har syftat till att göra en situationsstudie av dissipation beräknad i HIRLAM, en numerisk prognosmodell, över Danmark och att ge författarna kunskap om fenomenet turbulens. Studien gjordes genom att bearbeta data erhållen från HIRLAM i MATLAB. Den nedersta delen av troposfären där jordytan har en påverkan på atmosfären kallas för gränsskiktet. När vinden blåser i gränsskiktet kommer This case study aimed at analyzing dissipation calculated in HIRLAM, a numerical forecast model, over Denmark and to give the authors more knowledge about the phenomenon of turbulence. The study was done by processing data obtained from HIRLAM in MATLAB. The lowest part of the troposphere where the surface of the earth has an impact on the air is called the planetary boundary layer. When the wind
This report is written during a Master Thesis carried out at Volvo Aero Corporation, VAC, in relation with the Division of Production and Materials Engineering at Lund Institute of Technology. The purpose with this report is to get a better insight in some of the problems occurring during the manufacturing of a space nozzle. At VAC a new kind of nozzle wall design has been introduced for their sp
En ofta använd behandlingsmetod mot cancer är strålbehandling. Inför en sådan behandling undersöks patienten ofta med en typ av röntgenundersökning som kallas datortomografi (eng. computed tomomgraphy, CT). Röntgenbilderna visar hur mycket av strålningen som absorberas av kroppen, vilket innebär att man tydligt ser skillnad mellan ben, som absorberar mer av strålningen än vävnad och luft, som strå"Introduction; The aim of this study was to examine the possibilities for MRI-based radiotherapy treatment planning. The work included evaluation of geometric image distortions in MR-images, investigations of how segmentation of bone could be performed from images acquired with the ultra short time of echo (UTE) pulse sequence and assessment of dosimetric differences between treatment plannin
Simulation mimics the behaviour of real world processes or the system over time. It helps us to understand the impact of modification and the effect of introducing various interventions to a system. One such simulation method is known as Monte Carlo (MC) simulation, which has been utilized to evaluate the performance of digital communication systems over the last 70 years. MC has been the most ex
This thesis aims to discover how Baltic and Nordic regional identities are discussed in 448 speeches by the presidents of Estonia, Latvia and Lithuania during 1991 – 2021, and how regional identities in these countries may have changed over time. The research is conducted as a critical discourse analysis, with an addition of elements of comparative analysis. The theoretical framework consists of A
Background. Carlberg & Innanen (1987) first proposed the idea of measuring the solar re- flex velocity (the velocity of the Sun around the galactic centre), Vg,⊙, using the momenta of the stars in the solar neighbourhood. The proposal was a consequence of the work of L. Martinet (Martinet 1974), where he proved that there should be a dearth of stars with zero angular momenta in the solar neigh
The importance of the alluring goal of having the “perfect” or “true” information is more than visible in the financial world. In portfolio management financial correlation matrices measure the unsystematic correlations between assets e.g. stocks. Finding the true correlations between stocks would enable the creation of portfolios with less risk. In reality this information is more than hard to co
This is a study on the young client's encounter 1 with the welfare system which main goal is the transition to work or study. The focus is on the clients experiences of this encounters and if they consider social allowance as a mean of lasting support. The method of data collection has been interviewing five people, two females and three males, all about the age of 20. All five had for some ti
