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Human activity is constantly causing environmental problems due to production and release of numerous chemicals. A group of compounds of special concern is persistent organic pollutants (POP). These toxic, lipophilic chemicals have a high chemical and biological stability, and tend to accumulate in the lipid phase of living organisms. A major sink for POPs are sediments, and consequently these are

Popular Abstract in Swedish Att avstå från och att avbryta livsuppehållande behandlingar på intensivvårdsavdelningar. I mitten på 1980-talet träffade jag en 16-årig flicka, som jag kallar för Annie, som patient på en intensivvårdsavdelning. Annie var förlamad på grund av en förlossningsskada. Hon hade inte tidigare behövt sjukhusvård. Nu behövde respiratorhjälp på grund av en lunginflammation. TrMany deaths in intensive care units are preceded by decisions to withhold or withdraw life-sustaining treatment. Under what conditions are forgoing life-sustaining treatment considered appropiate, when is it optitional and when is it wrong? Relevant guidelines are essential to help medical decisionmakers, but they cannot be established only from medical knowledge. They also must be related to basi

Popular Abstract in Swedish Företag som idag är verksamma inom tillverkning och handel möter en allt hårdare konkurrens, vilket bland annat kan förklaras av att förändringar sker i allt snabbare takt, produktlivscykler blir allt kortare, samt att konkurrensen från leverantörer på avlägsna marknader blir allt mer påtaglig. Flera av dessa förändringsprocesser är på något sätt kopplade till utvecklinThis Ph.D. thesis is about how the design of measurement systems may influence-or even drive-the integration of firms in supply chains, and is based on research presented in my licentiate thesisR. The research aims at providing a conceptual framework for designing measurement systems in supply chains, and at supporting firms in their quest for ways of developing closer relationships with suppliers

The degradation of different polyethylenes, LDPE, LLDPE, and HDPE, with and without antioxidants and at different oxygen concentrations in the polymer granulates have been studied in extrusion coating processing. The degradation was followed by On Line Rheometry, Size Exclusion Chromatography, Surface Oxidation Index measurements, and GC-MS Chromatography. The degradations starts in the extruder w

Popular Abstract in English Proteins are smart molecules. They act in a vast variety of roles, for instance as transporters, messengers, catalysts, warriors and scaffolds. The ability of a specific protein to perform a task is closely related to its three-dimensional shape (native fold). However, not all proteins encoded in human genome have a structure; some of them are devoid of a well-defined sProtein misfolding is a frequently occurring event in living cells and without the quality control, the consequences are disasterous. In this thesis, we studied protein misfolding in vitro by employing a variety of fluorophores, to either detect the highly ordered aggregates of intrinsically disordered proteins/peptides or slight misfolding of a natively folded protein. Misfolding and concurrent

Boken handlar om slaveri och slavhandel i Gamla världen från tidernas begynnelse till 1500-talet. Framför allt fokuserar boken på framväxten av olika former av ofrihet via antingen krig eller fattigdom, former som i ett senare skede av historien alltmer kom att glida samman. Tonvikten ligger på husslaveri, men även plantageslaveri och soldatslaveri avhandlas. Åtskilliga kapitel ägnas åt den nordis

Denna diktsamling skildrar palestinierna under den pågående belägringen, sedan Israel invaderade Västbanken. Den intar därför en speciell plats i Darwish' produktion och har bl.a. en dokumenterande, historisk funktion.

The purpose of this article has been to examine the Swedish vocational education and training model with a special focus on basic education, within and outside the upper secondary school system. What can be said about the institutional structure of the educational system and how are new demands from working life concerning qualifications and mobility channelled through the system? The Swedish VET

Popular Abstract in English In our society powder is found to be a common state of material. Indeed, the powder state is found to be convenient to store and transport large quantities of material. One of the major techniques to produce powder is spray drying, also for thermally sensitive materials such as foods and pharmaceuticals. In spray drying a liquid is vaporized into a hot air stream, whichSpray drying is a preferred method to produce dry powder of thermally sensitive materials such as food and pharmaceuticals. Drying conditions and formulation determine primary properties such as morphology and composition that finally provide functionality such as dissolution, encapsulation and flowability. Even though spray drying is a well-established method to produce dry powder numerous challe