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Popular Abstract in Swedish Extrakt från växten Artemisia annua har dokumenterats för sina anti-malaria egenskaper. Substansen är en mycket effektiv medicin mot malaria och hjälper även mot de former där multi-resistens utvecklats.1979 presenterades strukturen på den aktiva substansen. Den benämns artemisinin och är uppbygd av femton kol innehållandes en peroxid-brygga (två syre kopplade till varaPlants produce a multitude of different compounds that may have biotic effects. Artemisia annua, produces a compound used as a drug against multi-drug-resistant strains of Plasmodium falciparum, the parasite causing malaria. The compound, artemisinin, is a sesquiterpene and is an essential component for the production of artemisinin drugs against malaria. In a first critical step of the biosynthes

In this thesis, the importance of cobalt and humic substances of terrestrial origin for the growth of some bloom-forming marine phytoplankton species is examined. Cobalt (Co) is considered an essential and potentially limiting trace metal for phytoplankton growth and is needed for the synthesis of vitamin B12. Since Co can be mobilised from soils at low pH values, acidification may have led to an

Popular Abstract in Swedish Denna avhandling består av en undersökning av den litterära formen och den litterära kompositionen hos Johannes Klimakos Stege, samt en studie av hur författaren använder traditionen för att undervisa sin läsare. Förutom en kort introduktion och en genomgång av tidigare forskning, omfattar avhandlingen fyra kapitel. I det första kapitlet visas, utifrån ett antal detaljThis thesis offers an investigation of the literary form and the literary composition of The Ladder by John Climacus, as well as a study of how the author uses the tradition to form his reader. Besides a brief introduction with a survey of the previous research, the study comprises four chapters. In the first chapter it is shown, from a number of detailed text analyses, that the material in the s

The possibility of using the channel reciprocity between the uplink and downlink channels in Frequency Division Duplex (FDD) systems to improve the efficiency has been deeply investigated. Previous studies have come to different conclusions for the characterization of the dissimilarity in uplink and downlink channel properties. This paper analyzes the mismatch in directional properties of the upli

During the last decades anthropogenic aerosol particles have attracted much attention due to their adverse health effects and their influence of climate change, and in Sweden, there are mainly three aerosol sources that affect the air quality; domestic wood combustion, traffic, and long distance transport, which includes new particle formation. This work concerns the characterization of these sour

Introduction The hotel check-in is usually treated as a facilitating service as it is often assumed only to facilitate the use of the core service i.e. the lodging. In addition the check-in is a highly standardized process, which is repeatedly performed every day. Being only one part of the front office’s duties executed at the reception desk, it is usually given scant attention from management. L

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Popular Abstract in Swedish Förbättrad bedömning av njurskador hos barn med urinvägsinfektioner Urinvägsinfektioner är vanliga och förekommer hos 1 - 4 % av alla barn. Urinvägsinfektion kan ge upphov till njurinflammation och ibland kvarstående njurskada (ärr) efter läkning. Det finns risk för fortskridande njurskada om det finns kvarstående njurskada efter en urinvägsinfektion, om barnet får uppThe aim of the present thesis was to define and evaluate a strategy for identification of children who are at risk of developing progressive renal lesions after acute pyelonephritis. Tc-DMSA renal scintigraphy is widely accepted as the most sensitive method for detecting parenchymal lesions and diagnosing acute pyelonephritis. Qualitative and quantitative evaluation standards were elaborated to i

Popular Abstract in Swedish I Big Bang, då vårt Universum skapades, bildades i princip endast de två lättaste grundämnena, väte och helium. Alla andra grundämnen har skapats, och skapas fortfarande, i olika typer av stjärnor under olika utvecklingsfaser. Detta betyder att precis alla atomer, förutom väte och helium, som bygger upp alla saker, växter, djur och människor i vår omgivning, har bildatsDisregarding the small primordial traces of the lightest elements, all metals have been formed in stellar processes, which means that the relative amount of metals in the Universe increases for every stellar generation. This build-up of elements is called chemical evolution and might be used both to constrain stellar models as well as understanding the formation and evolution of stellar population