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The growing proportion of green energy in the electricity grids brings with it a growing need of grid stabilizing resources to counteract the inherent intermittency of renewable energy resources. This is where the grid scale energy storages come in handy. They efficiently offset the intermittencies of solar, wind etc. resources by energy arbitrage and peak shifting. This thesis looks into the econ
Study I: Thirteen patients underwent a modified Ross operation in which the free-standing pulmonary autograft was supported externally by a Dacron vascular prosthetic jacket (DVPJ). The tailor-made DVPJ prevented dilatation of the neo-aortic root significantly following a median follow-up of 47 months compared to a cohort of l3 matched patients undergoing conventional Ross operation. Study II: A
Context: Due to the complexity and challenging nature of radical prostatectomy (RP), it is likely that both short-and long-term outcomes strongly depend on the cumulative number of cases performed by the surgeon as well as by the hospital. Objective: To review systematically the association between hospital and surgeon volume and perioperative, oncologic, and functional outcomes after RP. Evidence
The aim of this study was to investigate healthcare utilization patterns over a six-year period among older people (60+), classified as dependent/independent in Activities of Daily Living (ADL) and/or at/not at risk of depression and to identify healthcare utilization predictors. A sample (n=1402) comprising ten age cohorts aged between 60 and 96 years was drawn from the Swedish National study on
Background: Evolutionary biologists are often misled by convergence of morphology and this has been common in the study of bird evolution. However, the use of molecular data sets have their own problems and phylogenies based on short DNA sequences have the potential to mislead us too. The relationships among clades and timing of the evolution of modern birds (Neoaves) has not yet been well resolve
Background: Overdiagnosis and subsequent overtreatment are important side effects of screening for, and early detection of, prostate cancer (PCa). Active surveillance (AS) is of growing interest as an alternative to radical treatment of low-risk PCa. Objective: To update our experience in the largest worldwide prospective AS cohort. Design, setting, and participants: Eligible patients had clinical
Diamond-Blackfan anemia (DBA) is a congenital red cell aplasia in which 25% of the patients have a mutation in the ribosomal protein (RP) S19 gene. It is not known how the RPS19 deficiency impairs erythropoiesis and proliferation of hematopoietic progenitors. To elucidate molecular mechanisms in RPS19 deficient DBA, we analyzed the effects of RPS19 deficiency on EPO induced signal transduction, ce
This paper examines the structure of livestock farming and of the meat industry in Sweden, focusing on possibilities for small-scale farmers to develop, whether individually or in a group, self-sufficient systems of high quality meat production. The four areas identified as presenting structural difficulties (and in some cases opportunities) to small-scale producers are: i) the centralized structu
Adela Innovation is a company in a situation similar to many other small and medium sized enterprises in Sweden today. The question about internationalisation is important because the development on the Swedish market is declining, but the company still is very small in an international context. Adela Innovation needs to find markets to enter, that are of an appropriate size and that don’t require
This master thesis relates to future trends within the field of Business Intelligence. The purpose is to create and share knowledge about Business Intelligence. A theoretical study is necessary for both readers as mandator. With no or limited understanding of Business Intelligence it will most likely be hard to follow the discussions and results of the study. The main purpose is to increase the un
Yttrium-90 is a pure β-emitting radionuclide with a high energy (Emax = 2.28 MeV) and a short half-life (T½ = 64.1 h). It has shown to be a promising isotope to use in radio-immunotherapy. In the absence of direct photon emission scintillation camera imaging can be obtained by acquiring events from bremsstrahlung photons created at or near the decay site of the radionuclide. It is, however, not ev
Zirkon (ZrSiO4) och baddeleyit (ZrO2) är två vanliga zirkoniuminnehållande mineral som båda är viktiga för U-Pb-geokronologi. Zirkon är stabilt under kiselmättade förhållanden medan baddeleyit under kiselmättade förhållanden torde reagera med det tillgängliga kislet och bilda zirkon. Trots detta har baddeleyit observerats som interna domäner i zirkon i kiselmättade bergarter från exempelvis sydväsZircon (ZrSiO4) and baddeleyite (ZrO2) are two common zirconium bearing minerals which are important for U-Pb geochronology. Zircon is stable at silica saturated conditions, while baddeleyite should react with the free silica to form zircon under the same conditions. Yet, baddeleyite have been observed as intergrowths within zircon grains in silica saturated rocks, e.g. from southern West Greenlan
Does playing have to hurt? - A quantitative study of ergonomics and double bass playing. This is a paper about ergonomics and double bass playing. I have studied the prevalence of playing-related pain in professional double bass players, teachers and students. This study is based on a questionnaire with 11 questions about double bass playing and pain. The answers come from 185 double bassists from
This bachelor-level thesis in historical osteology deals with several aspects of the life-cycle of an Roman Iron Age farm in southern Scania. Excavated in the 1980's by Lars Larsson, the farm was located near a place called Långåker in the Dybäck area, on a cape which stretched out into a minor bog. Our work concerns why the Iron Age people settled the area, how well fragmented bone survives
The aim of this study is to analyze how relevant education members of the Swedish parliaments have in relation to the committee they are on. We want to investigate the degree to which they are governed by expertise. The Swedish parliament consists of 349 members, but since this study only focuses on the committees, the number reviewed are 254 members. In order to implement this study, we have used
This text is an attempt to re-evaluate the significance of Roman imports in Scandinavian contexts as well as to answer overarching questions concerning frontier zones, and the building of core-periphery relationships. This is achieved by applying the Roman concepts of hospitium and dona militaria as well as theoretical frameworks such as provincial ritual practices and cultural hybridisation to a
Olovligt tillgängliggörande av upphovsrättsligt skyddat material genom fildelning är ett av vår tids mest debatterade ämnen. Teknikens utveckling har gjort det möjligt för enskilda personer att snabbt och kostnadsfritt tillgodogöra sig perfekta kopior av musik och film. Detta resulterar i att kompensation uteblir för upphovsmän och deras rättighetshavare. På grund av anonymiteten på internet är deIllegitimate communication of copyrighted material to the public through file sharing is one of the most debated subjects of our time. The development of technology has made it possible for individual people to quickly and free of charge assimilate music and movies in perfect condition without any compensation being paid to the creators or other rights holders. As a result of the anonymity the int
The shortage of Earth’s limited resources is becoming more evident and our planet’s climate system is under immense pressure. To combat these problems, more people investigate the concept of circularity. This study intended to find out what make consumers motivated to buy used items from a professional refurbisher, thereby replacing purchases of brand-new products, and also identifying barriers.
This thesis was done in collaboration with the department of Food Technology at LTH, Aventure AB, and Arwa Foodtech AB. The aim of the project was to develop the base for a baobab based, spoonable protein snack, comparable to quarg but free from ingredients of animal origin. At the time of writing, one of the biggest if not the biggest trend in the food industry is the replacement of animal-source
