6,436 research outputs found

    De grensoverschrijdende zelfstandige:een grijs gebied?

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    In de tekst wordt aan de hand van voorbeelden uit de jurisprudentie betoogd dat er onduidelijkheden bestaan over wanneer iemand in loondienst, of als zelfstandige werkt. Er wordt uitgelegd wat een zelfstandige precies is en welke criteria de arbeidsinspectie hanteert. Het essay eindigt met een opsomming van omstandigheden die de auteur is tegengekomen is de jurisprudentie, om de lezer handvatten te bieden in het grijze gebied

    Indians and Antiquity:Subversive Classicism in Early New England Poetry

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    Two exceptional colonial poems, Thomas Morton's version of the events around his Maypole at Merrymount and Benjamin Tompson's epics on King Philip's War, are heavily classical, especially in their descriptions of Native Americans. The essay examines the advantages that the use of classical comparisons have over the more common tropes of Biblical typology

    Impacts of an extra scalar and a strongly coupled dark sector on the physics of the early universe : Gravitational waves and Leptogenesis

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    In this thesis two aspects of Standard Model extensions are discussed. Firstly, a Standard Model extension with a strongly coupled hidden sector is investigated. For suitable parameters, such a hidden sector is expected to undergo a first order phase transition, consequently resulting in the production of gravitational waves. Due to their strongly coupled nature, effective low energy models have to be used to determine the phase transition dynamics and calculate the predicted gravitational wave signals. It is shown that different effective models in general predict similar but by no means equal gravitational wave signals. Thus showing that calculations from first principles, like lattice calculations, are needed. Secondly, scalar extensions are discussed, which can result in a first order electroweak phase transition. In contrast to phase transitions in strongly coupled sectors, the dynamics of these phase transitions is rather well known. Consequently, the gravitational wave signals from the electroweak phase transition can be predicted reasonably well. In this thesis, instead of phase transition dynamics, a different aspect of scalar extensions will be discussed, namely their effect on leptogenesis via oscillations. Our results show that a scalar extension in general reduces the produced baryon asymmetry of the Universe. In the future these results, together with possible proof of a first order phase transition, can be used to further constrain scalar extensions
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