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Sperm performance is likely to be an important determinant of male reproductive success, especially when females copulate with multiple males. Understanding sperm performance is therefore crucial to fully understand the evolution of male reproductive strategies. In this study, we examined the repeatability of sperm morphology and motility measures over three breeding seasons, and we studied relati
This thesis shows how globalization creates disenfranchisment. Through a world-system perspective and an alternate view on globalization as social reproduction, it explores how people get disenfranchised by exposing the relationship between psychosocial expression and politico-economic structures. Disenfranchisment is regarded on a deeper ontological level than mere loss of the possiblity to affec
The precautionary principle is a judicial version of the common sense notion of "better safe than sorry". It may well be the most innovative and noteworthy new concept in environmental policy over the last twenty years, but I would also say it may well be one of the most dangerous, irresponsible and arbitrary guiding rules. It was first adopted in environmental law but has now spread to
This thesis examines the tension between norms and interests in the European policy on Russia, looking specifically at how this tension manifests itself in the EU's relation to Russia. This is being analysed with the help of two theoretical approaches; the norm-driven and the interest-driven approach. The empirical examination indicates that while the interest-driven approach is explaining the
Fibrosis is a process characterized by the accumulation of extracellular matrix components and is attributed to excessive scar formation and is a common feature of many chronic inflammatory conditions. Fibrogenesis involves multiple inflammatory cells including NKT cells, which have been suggested to play a prominent role in the control of this process. Here we characterize a transgenic mouse mode
Given the widespread underemployment in Africa, on-the-job search represents a key channel through which individuals seek better employment oppor- tunities that value their skills and competences. However, empirical research on the determinants of on-the-job search has almost exclusively been conducted in advanced economies. The study aims to identify the determinants of on-the-job search among di
The European Spallation Source, ESS, is a joint collaboration of 17 European countries, where the world’s most powerful neutron source will be built for future research within a vast variety of fields. In order to deliver the highly energetic neutrons, protons are accelerated to energies in the GeV range and then collided with a spallation target. This acceleration process requires superconducting
A hydraulic system is designed to transport fluid power over large distances, from pumps to actuators where the fluid power is transformed to mechanical power. The submarines, built and designed by Saab Kockums, utilises such systems. There are, however, challenges as the hydraulic pumps consume much energy, and the system accumulators command significant space. As both energy and space are limite
This thesis examines the impact of shareholder activism on the annual stock returns of targeted companies. Utilizing a dataset of activist campaigns from the FactSet SharkWatch 50 database, covering the period from 2005 to 2021, we investigate whether the presence of activist investors leads to enhanced stock performance. Our empirical analysis, employing an event study design, reveals a significa
Income inequalities in developed nations are increasing and the issues of cause, effect and long run implications are currently being discussed and explored by economists and policymakers around the world. This thesis adds to the discussion by exploring income growth in Sweden; a country known for its equality and egalitarian society, yet has become one of the countries where income inequality is
På grund av energiomställningen, Sveriges mål om att ha en fossilfri elproduktion 2040 samt målet om nettonollutsläpp av växthusgaser 2045 förväntas en omfattande utbyggnad av förnybara energikällor ske. I denna rapport har därför elbehovet, potentialen för elproduktion, möjliga framtida systemproblem samt lösningar undersökts. Efter en omfattande litteraturstudie har det framkommit att elbehove
The radioanalytical procedures for the determination of neutron activation isotopes (Fe-55 and Ni-63) in environmental samples (water, sediment, sail and biological material) are described. The procedures are based on the coprecipitation of Fe-55 with iron hydroxide in natural and reactor water, ashing and mineralization of sediments, soil and biota samples, and the sequential separation and purif
The Transition Radiation Tracker (TRT) sits at the outermost part of the ATLAS Inner Detector, encasing the Pixel Detector and the Semi-Conductor Tracker (SCT). The TRT combines charged particle track reconstruction with electron identification capability. This is achieved by layers of xenonfilled straw tubes with periodic radiator foils or fibers providing TR photon emission. The design and choic
Tulasnein (1), a new metabolite with strong antimicrobial and weaker cytotoxic and phytotoxic activity, was isolated from culture filtrates of three strains of the xylariaceous coprophilous fungus Podosordaria tulasnei. The producing strains were identified by their rhizomorphs and by ITS rDNA sequence analysis. A second new metabolite, podospirone (2), was also produced by all three strains where
The I subunit of magnesium chelatase is an AAA+ protein which binds and hydrolyzes ATP to drive the insertion of Mg2+ into protoporphyrin IX during bio-synthesis of bacteriochlorophyll and chlorophyll. The purification method and co-crystallization conditions of the Rhodobacter capsulatus BchI (bacteriochlorophyll Magnesium Chelatase I subunit) protein with either ADP or AMPPNP and crystallization
