This study focuses on the fruit of the African medlar (Vangueria infausta L., family Rubiaceae). The investigation included the development of an extraction procedure of volatile components from the fruit matrix, a purification step, separation, identification and quantification. Initial experiments showed that some components, especially sugars, degrads during the heating in the GC analysis, prod

The thesis Housing Culture, Information Flows, and Craftsmen 1740-1820 (Bostadskultur, informationsflöden och hantverkare 1740-1820) investigates two mansion houses – Bålby in Närke and Skottsbergska gården in Karlshamn – with the focus on craftsmen and their clients. This is in order to analyse the relationship between professional craftsmen in the capital and in other regions. The clients have a

New emerging technologies such as nanoimprint lithography (NIL) offers the biosensor research community the possibility to fabricate low-cost biodevices having nanometer dimensions. Such nanosized devices can be applied as biosensors where new functions might emerge due to the nanoscale dimensions. In this paper we will discuss various nanolithography methods as well as the benefits of going to th

Human consciousness serves many roles. It helps us imagine, dream, and think rationally. One capacity that human consciousness enables is cooperation. Here, we will focus on the interplay between cooperation and how subjects understand the minds of others. The aim is to compare and elucidate the similarities and differences between humans and apes as concerns cooperative behaviour. One difference

When a resting cell is awakened to enter the cell cycle by mitogenic stimulation, a complex molecular machinery involving positive and negative regulation of cell-cycle progression is initiated. Part of the machinery is quite well-known. It involves receptors of various kinds, protein interactions, phosphorylation reactions, and molecular cascades carrying the signal to enter the cell cycle from t

Popular Abstract in Swedish Forskningspolitiken har i allt högre utsträckning kommit att kopplas till närings- och innovationspolitiken. Ett exempel är den strategiska forskningspolitik som växte fram i början av 1990-talet, där ett antal forskningsstiftelser med nya mål och modeller för finansiering tillkom. I denna studie diskuteras implikationerna av dessa förvaltnings- och forskningspolitiska Research policy is increasingly linked to social needs and to some extent integrated with industrial and innovation policy. The strategic research policy that emerged in Sweden in the early 1990's resulted in the establishment of a new kind of research funding both in form and direction: strategic research foundations. The purpose of one of these foundations, the Knowledge Foundation (Stiftelsen f

Popular Abstract in Swedish Denna avhandling är uppbyggd kring fyra artiklar som berör reglering av gener i B-celler. B-cellerna är en viktig del av vårt immunförsvar, de sköter produktionen av antikroppar som hjälper till att skydda våra slemhinnor och vårt inre från sjukdomsframkallande bakterier och virus. Kroppens försvar mot sådana patogener består av flera delar, inklusive vår hud och våra sEach Ig V-region has its own upstream promoter and the promoter of a mature Ig gene is thereby selected during the V(D)J recombination process. Upon comparison, it is evident that only one transcription factor binding site, the octamer, is preserved within all promoters. The octamer motif and the binding Oct-proteins are crucial for Ig promoter function, but not sufficient for a high level of tran