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Wind turbines are often used on weak grids as a source of active power. There is a desire for a continuous supply of active power during variable wind speeds while also supplying reactive power to suppress grid-voltage fluctuations. These objectives are attainable using converters which are controlled with regulators. In this project a test environment will be constructed wherein a wind turbine wi
Syftet med detta arbete är att utreda markanvändningens kolinlagringsförmåga i Örebro kommun och vilka konsekvenser olika typer av markanvändning kan få för klimatet. Detta för att undersöka möjligheten att inkludera markanvändningssektorn i kommunens nästa klimatplan. Resultatet visar att kolinlagringsförmågan för Örebro kommuns marker (exklusive sjöar och våtmarker) idag är 8 230 ton C/år. Om dThe purpose of this thesis is to investigate the current carbon storage in the land-use sector in Örebro municipality and which consequences different land-uses have on the climate. The municipality wants to investigate the possibility to include the land-use sector in the next climateplan. This study has found that the carbon storage for ground and vegetation in Örebro municipality (exclusive o
Popular science summary: Do bacteria survive in humans by eating the defense molecules during the course of infection? Enterococcus faecalis (E. faecalis) is a pathogen that can be found in the human gut which causes a wide range of infections including urinary tract infections, cardiovascular infections and bacteremia (presence of bacterial cells in blood stream). These bacteria can also be fou
Abstract Non-coding RNAs (ncRNAs) are involved in many diverse biological functions. In this thesis, my objectives were focused on the functional evaluation of two types of ncRNAs. First, the functional consequences of miR-944 regulation were evaluated in HeLa, a cervical cancer cell line. Results showed a reduced cell proliferation on miR-944 overexpression by using the WST-1 assay. In addition,
Abstract Peroxisome proliferator-activated receptor gamma (PPARγ) is expressed in multiple tumor cells as well as macrophages, and has been identified as a putative target for the development of novel therapies against colon cancer. Stimulation of the nuclear receptor PPARγ transcriptional activity can suppress colon carcinogenesis. To understand the molecular mechanisms underlying the anti-tumor
Abstract The yeast Dekkera/Brettanomyces bruxellensis is a distant relative of baker’s yeast Saccharomyces cerevisiae and either has positive or negative effects to beverage flavor development. D. bruxellensis and S. cerevisiae display several similar traits which play very important roles in food industry, such as production of high ethanol levels. In our lab, we determined and annotated the 13.
Lite mer än ett decennium efter skapandet av Napster är piratkopieringens ekonomiska inverkan på musikindustrins intäkter, konsumenternas välfärd och utbudet av ny musik fortfarande under debatt. Det finns en utbredd oro att omfattande piratkopiering leder till negativa långsiktiga välfärdseffekter för såväl producenter som konsumenter. I den här uppsatsen genomförs en kvalitativ studie av piratko
Uppsatsens syfte var att analysera hur läkemedelsassisterad behandling vid opiatberoende textuellt konstrueras och konstitueras genom språket i åtta textdokument producerade dels av Socialstyrelsen och dels av Region Skåne. Uppsatsen har en socialkonstruktionistisk hållning med en syn på språket som tillträde till den empiriska verkligheten vilket utgör utgångspunkt för det diskursanalytiska angreAuthor: Terese Farkas Title: Medication-assisted treatment for opiate dependence - A critical discourse analysis Supervisor: Leili Laanemets Assessor: Håkan Jönson och Torbjörn Hjort The aim of this study was to analyze how the medication-assisted treatment for opiate dependence textually constructed and constituted through language in a number of text documents produced partly by the National Boa
Varg (Canis lupus) i södra Sverige Efter att ha varit nästan utrotad från landet 1965 så har vargen nu stadigt återhämtat sig och ökar mer och mer i antal, dock finns den svenska varg populationen främst i mellersta Sverige. Men i samband med att populationen ökar så flyttar fler och fler djur söderut. Etableringen av rovdjur så som varg har visat sig ha stor positiv påverkan på ekosystem men ä
The goal of this dissertation is to estimate the amount of water in snowpacks at the areas Kultsjön and Rensaren in northen Sweden. A model is built using spatial statistics, and the estimations will be done by Integrated Nested Laplace Approximations (INLA). Then a validation process was done by removing data from the data set to create a validation set, and compare the estimations done by INLA t
Abstract: The zooplankton community of The Area of Multiple Use Hawaii (AUMH), South Pacific Coast of Guatemala mangrove channel ecosystem was studied in the dry season between February and March 2011. Zooplankton samples were taken during two lunar cycles, four tidal cycles (flood, high water (HW), ebb, low water (LW)), at four different sites. For each sampling occasion, salinity, pH, dissolved
BIOGEOGRAPHICAL DIVERSITY OF PLANT ASSOCIATED BACTERIAL COMMUNITIES ARCTIC TUNDRA Global warming is predicted to affect the Polar Regions most rapidly due to glacial retreat, snow cover reduction, melting of ice sheets and thawing of permafrost soils. Increase in temperature will further influence the native species to shift northerly by invasive pressure of species well adapted to warm temperat
I Skåne permanentades år 2008 vårdprogrammet höftlinjen vilket innebär att patienten redan på skadeplatsen gavs smärtlindring och förberedelser inför kommande operation startades. För att kunna utvärdera och förbättra den prehospitala omvårdnaden krävs forskning av patienternas upplevelse. Syfte: Att belysa patientens upplevelse av den prehospitala omvårdnaden vid höftfraktur. Metod: Elva semistru
ABSTRACT Soft tissue tumor-associated gene fusions are currently being used as diagnostic genetic markers and seem promising as potential prognostic markers. In the present study, a new fusion gene was discovered in one case of a specific subtype of soft tissue sarcoma displaying a t(6;16) translocation. Using fluorescence in situ hybridization (FISH), the FUS gene in 16p11 was shown to be rearra
Abstract Migration is a widespread phenomenon in nature, observed in many different taxa. Migration is often caused by changes in food availability, physical conditions and predation risks. Moving is energetically costly, and hence migration is likely to be a trade-off between increased survival and an energetic cost for migrating, the cost could take shape in decreased fecundity and lower body c
Popular science summary: Monitoring subcellular localization of Spx, YjbH, and ClpX in Bacillus subtilis Bacteria are exposed to continuous stress that causes damage to the cell. Therefore, they have developed stress responses that enable them to overcome stress and survive. Oxidizing elements is one kind of stress that bacteria have to deal with. To investigate how bacteria cope with this ki
Climate change induced migration is sometimes pictured as an urgent up-coming crisis that could result in waves of international refugees and violent conflicts, and sometimes as part of human history. It is a contested topic, an issue that divides actors and that still has no agreed upon definition. To get a better understanding of the debate, this thesis sets out to display the main discussions a
Abstract: The physiological responses of two Hong Kong acorn barnacles, Tetraclita japonica and T. squamosa differed under identical heat stress conditions. Both species experienced increased body temperature and mantle water osmolality with higher temperatures and prolonged emersion time. Species comparisons however, showed that T. japonica had warmer body temperatures and more concentrated osm
Aktivering av immunförsvaret dämpar den samme Kroppens immunförsvar består av en mängd olika typer av specialiserade celler, alla med sina unika egenskaper och nischer. För att immunförsvaret ska fungera så optimalt som möjligt krävs det att cellerna kan interagera och kommunisera med varandra, vilket görs med hjälp av proteiner som finns på cellernas yta. En typ av celler, som kallas CD8+ T cellAbstract 4-1BB (CD137/TNFRSF9) is a costimulatory receptor expressed by several cellular subsets of the immune system, but is commonly associated with CD8+ T cells. Stimulation of 4-1BB on CD8+ T cells with agonistic antibodies (α-4-1BB) causes a potent proliferation signal and an upregulated expression of CD11c. CD11c+CD8+ have previously been recognized to suppress other immune cells, such as F
Streptomyces belong to the phylum Actinobacteria, which are Gram-positive bacteria with GC-rich DNA. Most Streptomyces are strict aerobes and inhabit soil. They are known for production of a wide range of secondary metabolites, including antibiotics e.g. the macrolide erythromycin (S. erythraeus) or chloramphenicol (S. venezuelae). The typical smell of wet soil is owed to geosmin, also a secondary
