Popular Abstract in Swedish Denna avhandling utgår ifrån en önskan att finna en växtart som är diploid fakutativ apomikt. En diploid är en organism som, liksom människan, innehåller två kromosomuppsättningar, och en fakultativ apomikt är en växt som sätter frön både sexuellt (med befruktning) och apomiktiskt (utan befruktning). En växt med de begärda egenskaperna skulle ge oss goda möjligheter attFinding a diploid facultative apomictic plant species would give a great opportunity to solve problems concerning the existence and persistence of sexuality and also, it would be a possible source to get a transferable apomictic gene from. The putative diploid facultative apomict Potentilla argentea from southern Sweden was investigated with RAPD, isozymes and flow cytometry. Its mode of reproduct

In this paper, the information extracted from Single-Input Multiple-Output sounding measurements is used to study the effect of several aspects of the receive antenna arrays on system performance. The extracted multipath parameters are used to synthesize the MIMO channel matrices of a hypothesized communication system having a fixed microcellular base-station and a handheld terminal moving through

A preliminary phylogeny of the genera Flavopunctelia and Punctelia is presented. Genus and species delimitations have been investigated using ITS rDNA-sequencing of populations from different continents. Current genus delimitations of Flavopunctelia, Punctelia and Parmelia are confirmed and the species status of recently resurrected Punctelia ulophylla is confirmed. The status of three cryptic spe

Popular Abstract in Swedish Hemolytiskt uremiskt syndrom (HUS) och trombotiskt trombocytopen purpura (TTP) är allvarliga sjukdomar hos barn och vuxna. HUS kännetecknas av mikroangiopatisk hemolytisk anemi (blodbrist med nedbrytning av röda blodkroppar), trombocytopeni (låga blodplättar) och akut njursvikt. Det är den vanligaste orsaken till akut njursvikt hos barn. Typisk HUS utlöses av tarminfektThis study investigated the pathogenesis of hemolytic uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP). (1) The relative roles of lipopolysaccharide and Shiga-like toxin-2 were studied in a mouse model of Escherichia coli O157:H7 infection. Both factors were found to be important for the virulence of the strain and contributed in an additive manner. The mouse model mimicked cert

Antioxidants are important molecules that are widely used by humans, both as dietary supplements and as additives to different types of products. In this chapter, we review how flavonoids, a class of polyphenolic antioxidants that are often found in glycosylated forms in many natural resources, can be extracted and modified using glycoside hydrolases (GHs). Glycosylation is a fundamental enzymatic

Popular Abstract in Swedish Relationen mellan högre utbildning och nyutbildade akademikers arbetsliv har diskuterats intensivt sedan början av 1990-talet. Å ena sidan förekommer ständiga klagomål om en påstådd diskrepans mellan den kompetens de nyutbildade besitter och den kompetens som potentiella arbetsgivare kräver. Å andra sidan har representanter för högre utbildning betonat universitetens obThe issue of higher education and its relation to the working life of graduates has been intensely discussed since the beginning of the 1990’s. There have been constant complaints about an alleged mismatch between graduate competence and competence required by potential employers, regardless of field. On the other hand, representatives of higher education have stressed the independent role of univ

When a manipulator interacts with objects with poorly damped oscillatory modes, undesired oscillations and bouncing may result. In this paper, we present a method for observer-based control of a rigid manipulator interacting with an environment with linear dynamics.The controller injects a desired damping into the environment dynamics, using both visual-and force sensing for stable control of the