Background: Fatty acids (FA) have a role on energy storage and membrane formation. FA consists of an aliphatic chain with varying number of carbon and a carboxylic functional group. Perfluorooctanoic acid (PFOA) exhibits a similar structure to that of the FA. Given their structural resemblance, we hypothesized that alterations in FA metabolism could arise from competition with PFOA for endogenous FA binding sites in transport and with FA binding proteins. Objectives: Explore associations of serum concentrations of perfluorooctanoic acid (PFOA) with serum concentrations of linoleic (LA), eicosapentanoic (EPA), and docosapentanoic (DHA) acid in adults. Methods: We analyzed data from 1,829, 20-80 years old participants in the 2003–2004 National Health and Nutrition Examination Survey (NHANES). Linear regression models were used to estimate adjusted predicted means of the FA (in µmol/L) for quartiles of PFOA (in ng/mL) and explore linear trends. Results: Increasing concentrations of PFOA were not associated with adjusted predicted means of serum LA (Q1 3534, Q2 3445, Q3 3778, Q4 3399) (p trends=0.6460). Increasing concentrations of PFOA, however, were associated with increasing trends in adjusted predicted means of serum EPA (Q1 49.8, Q2 51.5, Q3 60.9, Q4 55.7).

Detta examensarbete beskriver i detalj hur ICC-profiler fo¨r utskriftsmedier, i detta fall fo¨r storformatskrivare, skapas. Examensarbetet omfattade framtagande av ICC-profiler fo¨r substrat till storformatskrivaren Mutoh Toucan PJ-1614NXE (Mutoh Toucan) hos BEMI REKLAM AB (BEMI), Borla¨nge. Fo¨retaget har tidigare anva¨nt en standardlinja¨risering till samtliga substrat fo¨r storformatskrivaren, dock utan att applicera na°gon ICC-profil fo¨r utenheter. Samtliga substrat till Mutoh Toucan a¨r avsedda fo¨r utomhusbruk.

<p>This paper describes the evolutionary development of an information system for a small company. The company performs overhaul of forklifts and cleaning machines. The company has already an information system that handles the reports from these overhauls but it needs a supplementary tool that assist the chief planner to plan forthcoming overhauls.</p><p>It should be able to display coming overhauls in a timetable and eventually print them, either to a PDF file or to a document. The timetables this function produces will help the chief planner and the assemblers to get a good overview of their day-to-day work.</p><p>The tool needs to be intelligent in that way that it takes into consideration were in the country different assignments will be performed. So that time consuming travels over great distances can be avoided. This coordination will lead to higher profitability for the company and more satisfied customers.</p><p>The paper contains theoretic background about what models and methods that are used in the development of an information system. This theoretic background is then used when developing a system in practise and the result of this is then showed. In the end the results are compared to the demands, goals and requirements stated in the beginning of the paper, to see if they are fulfilled.</p><p>This is a degree thesis at the S c ho o l o f E n gineering, Jö nkö pin g U niversity. It’s a part of the programme: Communication and Information Technology, and are mainly based on knowledge from the following courses: Programming Methods, Database Systems and Trends, Software Engineering Methods and Systems Analysis and Design with a Concept of Quality.</p> / <p>Det här examensarbetet beskriver vidareutvecklandet av ett befintligt informationssystem som hanterar servicerapporter på truckar och städmaskiner. Det befintliga systemet har behov av att kompletteras med ett verktyg som skall kunna lägga till kommande service, visa dessa i ett schema och sedan skriver ut denna planering som scheman i en PDF-fil och/eller på papper. Dessa scheman är till för att chef och de montörer som utför arbetet ska få en bra överblick över vad för arbete som skall göras under en vecka. Verktyget behöver vara smart så till vida att det måste veta var någonstans i landet montörer arbetar för att tidsförlust på grund av resor över stora geografiska avstånd minimeras. Effekten av införandet av verktyget är bättre lönsamhet för företaget och bättre kundrelationer.</p><p>Examensarbetet kommer att innehålla teoretisk bakgrund om vilka metoder som används i alla steg i ett informationssystems utveckling och hur de sedan kan kopplas till det praktiska arbetet. Den teoretiska bakgrunden kommer att användas i praktiken och resultatet blir ett fungerande informationssystem. Resultatet av utvecklingen av systemet kommer att relateras till de syften, mål och krav som anges i början av rapporten för att se om målen med rapporten uppnås.</p><p>Arbetet fokuserar på det praktiska arbete det innebär att utveckla ett informationssystem för ett mindre företag.</p><p>Examensarbetet skrivs vid IIngee njjörrsshögsskollaan, Högskolan i Jönköping och är en del av programmet Datateknik: Kommunikation och Informationskunskap. Arbetet bygger på kunskap främst från kurserna Programmeringsmetoder, Databas Internet, Systemutveckling, Teknisk information och Informationssystems användbarhet.</p>

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Le but de ce travail est de déterminer par méthodes optiques la distribution de taille (pdf) des nanoparticules de suie, agrégats de morphologie fractale. Après des études préliminaires qui utilisent DDSCAT pour valider la théorie RDG-FA et permettent de convertir un rayon de giration en rayon de mobilité, deux diagnostics optiques sont étudiés. Le premier consiste à exploiter une mesure d'extinction spectrale de la lumière. Nous montrons que pour exploiter ce signal, il faut connaître les propriétés optiques des suies, leur préfacteur et dimension fractale, la loi de distribution et le diamètre des sphérules primaires. Le second diagnostic tire parti de la mesure angulaire de la diffusion de la lumière. Nous montrons qu'il est possible de déterminer la pdf à l'aide de la mesure de diffusion à trois angles. Il faut supposer la loi de distribution et la dimension fractale. Cette deuxième approche, in-situ, est plus appropriée que la première pour déterminer optiquement la pdf des suies.

>Magister Scientiae - MSc / The aim of this study was to produce useful composite materials from fly ash, a major waste product of coal combustion from power plants. Polyaniline-fly ash (PANI-FA) composites were prepared by in situ polymerisation of aniline in the presence of Fly Ash (FA) by two slightly different methods. In one case polystyrene sulphonic acid (PSSA) was used as a stabilizer and in another case the starting materials (aniline and FA) were aged before oxidation. The aging procedure formed nanotubes that have cross-sectional diameters of 50-110 nm. The other procedure produced nanotubes with a diameter of 100-500 nm and the length of up to 10μm. The presence of metal oxides and silica in FA were responsible for the formation of nanorods in PANI-PSSA-FA.. The formation of the composites was confirmed by UV-Vis and FTIR. The UV-Vis showed maximum absorbance at 330-360 nm ( due to π-π* transition of benzoid rings) and 600-650 nm(due to charge transfer excitons of quinoid rings), which are characteristics of emaraldine base. The electrochemical analysis of the composites showed that the composites were conductive and electroactive. The Cyclic Voltammetry of PANI-PSSA-FA showed three redox couples which are characteristics of sulphonated PANI. The morphology of the composites was studied by Scanning Electron Microscopy (SEM) and showed that our methods gave composites with improved homogeneity as compared to other reported methods. Thermo Gravimetric analysis (TGA) showed that the presence of FA in the composites improves the thermal stability of the composites by up to 100 0C.

Magister Chirurgiae Dentium - MChD (Oral Medicine and Periodontics) / The aim of this study was to assess whether a mouthwash containing carbohydrate derived fulvic acid, is effective in reducing the salivary microbial count pre-operatively. Endeavours have been made to reduce the risk of infection, bacteraemia and cross-contamination during dental procedures by the application of topical antimicrobial agents. To date chlorhexidine is the most widely evaluated and efficacious agent against oral biofilms but there have been reports of adverse effects ranging from contact dermatitis to severe anaphylactic shock. A new mouth rinse containing carbohydrate derived fulvic acid are reported to have broad spectrum antimicrobial activity against specific oral microbes and Candida albicans with no side effects.