PIXE-analyser kan utföras med utvecklad analysuppställning med noggrannhet och precision av c:a 10 % och med hög analyskapacitet. Ett dataprogram för evaluering av räntgenspektra presenteras. Inverkan av provtjocklek vid PIXE-analys av inhomogena prov har studerats och korrektioner föreslås. Fluorinnehållet i filterprov har bestämts, samtidigt med PIXE-analys, genom utnyttjande av en kärnfysikalis

As reported in several studies, even though properly designed, it is possible that groin systems not only cause down-drift beaches to erode, but also contribute to the generation of rip currents. These rip currents run along the updrift side of the structure, moving sediment offshore where it may be, at least in part, lost from the system. It is well known that the directionality of the incident w

Abstract in Undetermined Rapporten innehåller dels ett underlagsmaterial för vidare bearbetningar, dels förslag till vetenskaplig inriktning för det fortsatta antikvariska arbetet. Kapitlet med underlagsmaterial består av en deskriptiv och teknisk sammanställning av det befintliga dokumentationsmaterialet. Materialet är splittrat på ett flertal arkivförande institutioner. Det består av skriftliga

Our problem is how to design, with the use of distance and ICT, an appropriate academic context for learning, for students with no previous knowledge of this context. Our aim is to analyse and describe the learner’s relation to the object of his/her studies as part of his/her relation to the learning activity. By using a combination of a phenomenographic approach and activity system theory, we ana

Popular Abstract in Swedish Psykoterapi betraktas idag som en etablerad behandlingsform för människor med psykiska problem. Under senare hälften av 1900-talet växte intresset för alternativa behandlingsformer inom vårdsektorn, och en ansenlig mängd psykoterapeutiska metoder utvecklades. Under denna period tog även psykoterapiforskningen fart, med syfte att undersöka vilken betydelse olika behandliThe overall aim of the thesis was to investigate the effects of psychodynamically oriented psychotherapy and gain an increased understanding of the curative factors in psychotherapy by thorough examination of the therapeutic alliance and of client change. The core of the thesis is a naturalistic study of 22 short-term dynamic psychotherapies and a follow-up 6-12 months later. Individual outcome me

No abstract - but a conclusion: "Taking my point of departure in classical embodiment theories stemming from the phenomenological tradition, I have discussed tertiary embodiment, characteristic of certain types of signs, such as pictures and writing, as a particular stage of development in the phylogeny and ontogeny of human beings. In so doing, I have singled out the sign function as an indirect

Popular Abstract in Swedish I detta doktorandprojekt har ett antal nya syntesmetoder utvecklats och studerats. En stor del av avhandlingen fokuserar kring införandet av en allylisk grupp i aromatiska föreningar. Allylaromatiska substanser är utmärkta startmaterial i syntesen av föreningar avsedda att användas som kontrastmedel för röntgen. Ett stort antal allylaromatiska substanser med varierande A new method for allylation of aromatic systems has been developed. A number of arylamines were converted via diazotization to the corresponding allylaromatic compounds using tert-butyl nitrite and an excess of allylic bromides with complete regioselectivity. Electron-withdrawing groups, in the aromatic moiety, were necessary to obtain good yields. The convenient experimental procedure allowed the

The spoilage flora of refrigerated raw and pasteurized milk was classified and identified by numerical phenotypic analysis. Isolations of bacteria were made at a defined spoilage stage, when the total aerobic count was 106-107 cfu per ml. The secondary flora of ripened Swedish and Norwegian cheeses was investigated by numerical analysis. Aeromonas and Enterobacteriaceae spp. isolated from the spoi