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The inheritance pattern of hordein, the seed storage protein in barley, has been studied in two wild Hordeum species, H. murinum and H. pusillum. Three different diploid populations of each species were crossed, and the F1 plants were self-pollinated. The seeds with an F2 genotype were studied by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). Several differences could be ob
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In this thesis, I have studied male and female selective mechanisms that can affect plant reproductive success and gene flow. I have focussed on sexually selected traits, mainly pollen competition and maternal sorting mechanisms, for example through non-random ovule abortion. The main question was; what kind of traits can influence the most successful pollen donor or maternal sorting process? I fo
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The high-order harmonics that are created in the interaction between an intense laser pulse (around 1014 W/cm2) and a gas medium are studied. The high-order harmonic radiation is a relatively new source of coherent radiation in the short wavelength range. The high-order harmonics are interesting for applications because of their good spatial and temporal coherence, their shor
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Observations show that radial metallicity gradients in disk galaxies are relatively shallow, if not flat, especially at large galactocentric distances and for galaxies in the high-redshift universe. Given that star formation and metal production are centrally concentrated, this requires a mechanism to redistribute metals. However, the nature of this mechanism is poorly understood, let alone quanti
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This essay examines how the image of Sweden was visualized in Swedish visual culture from 1945 and onwards, in relation to the experience of World War II. It looks on a broad range of visual expressions, ranging from movies to picture magazines, school books, stamps, postcards, coins and medallions, etc. The essay argues that Sweden's national self-image was carefully constructed through visual cu
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Den romerske poeten Publius Ovidius Naso föddes år 43 f.Kr. och dog 17 eller 18 e.Kr. Hans Metamorfoser från ca 8 e.Kr. är en världshistoria i mytens form som sträcker sig från kosmos skapelse till Julius Caesars död och apoteos. I en gigantisk samling med mer och mindre välbekanta sagor från den grekisk-romerska mytologin skildrar Ovidius naturens, människornas och gudarnas ständiga förvandlingar