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This work proposes methodologies using a model-based approach to gain knowledge on and assist the development of an ion-exchange step in a protein purification process; the separation of IgG from a mixture containing IgG, insulin and transferrin. This approach is suitable for capture and intermediate steps in a process. Both methods involve four consecutive steps. Firstly, the retention of the dif

Accurate measurements of solute concentration are needed to conduct studies of solute transport process in unsaturated soil. In this paper we present a method of obtaining accurate measurements in and space using dye infiltration and image analysis. The soil color was related to the dye concentration in the soil (C-s) using 74 small calibration samples. The overall root mean square error (RMSE) 0.

Cysteine proteinases, especially cathepsin K, play an important role in osteoclastic degradation of bone matrix proteins and the process can, consequently, be significantly inhibited by cysteine proteinase inhibitors. We have recently reported that cystatin C and other cysteine proteinase inhibitors also reduce osteoclast formation. However, it is not known which cysteine proteinase(s) are involve

We compared the differences between spring and autumn in migration speed, fuelling rates and fuel loads of migrating Red Knots Calidris canutus. As a basis we used ringing data from Ottenby Bird Observatory, southeastern Sweden, collected 1948–2003, with morphometrical data from 1990–2003. Numbers ringed varied between 0 and 301 per year (average 56). Morphometrics, recoveries and recaptures of ri

Popular Abstract in Swedish Avhandlingen består av tre artiklar som med en teoretisk utgångspunkt valutamarknader och valutaprissättning. Framförallt undersöks vilken roll förväntningarna har vid prissättningen på valutor. Normalt tänker man på priset på en valuta som växelkursen, det vill säga ett pris mätt i termer av en annan valuta. Men vad är det egentligen som bestämmer den aktuella och den The thesis consists of three essays on currency markets, equilibrium and expectations. The first essay examines currency markets in the setting of a temporary equilibrium model with two currencies and two central banks, where consumers have one-point expectations. Assuming that both central banks use floating exchange rate policies it is shown that if consumers have common expectations the curren

The Swedish National Diabetes Register presents results during the period 1996-2003. Quality of care data from more than 75,000 diabetic patients (2003) treated at medical departments and primary health care centres are evaluated concerning national goals of HbA1c < 6.5% and BP < 140/85 mm Hg, the prevalence of lipid treatment, smoking etc. The national goals of HbA1c and BP were reached with incr

This paper presents a dynamic mathematical model that describes the fate and transport of two selected xenobiotic organic compounds (XOCs) in a simplified representation. of an integrated urban wastewater system. A simulation study, where the xenobiotics bisphenol A and pyrene are used as reference compounds, is carried out. Sorption and specific biological degradation processes are integrated wit

A method to determine the dynamic load between two rotating elastic helical gears is presented. The stiffness of the gear teeth is calculated using the finite element method and includes the contribution from the elliptic distributed tooth load. To make sure that the new incoming contacts which are the main excitation source are properly simulated, the necessary deformation of the gears is determi

The conductive polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4- phenylene vinylene) (MEH-PPV) was investigated by means of single molecule spectroscopy at 15 K. MEH-PPV single chains were deposited onto a surface from a toluene solution and covered with a polymer cap layer spin-coated from an aqueous solution for protection from air. The MEH-PPV molecules exhibited large fluorescence spectral diff

A soy protein film coating was developed and evaluated to reduce fat transfer in deep-fried foods during frying. Soy protein isolate solutions (10% SPI) with 0.05% gellan gum as plasticizer cooled after being held at 80 degrees C for 20 min provided suitable films. There was a significant fat reduction (55.12(+/-6.03)%db) between fried uncoated and coated discs of doughnut mix. The same films were

Popular Abstract in Swedish Ofärd är samhällsrisker. Riskorganisationer kan definieras som organisationer vilka genererar större samhällsrisker än traditionellt företagande. Dessa organisationer hanterar en mer omfattande kravbild än gängse företagande, en kravbild som innefattar risker för människor utanför själva verksamheten. Riskorganisationer är en del av den värdeförädling som krävs för att Risk societies are made of risk organizations. This dissertation is an ethnographic study of a risk organization, of a nuclear power plant. Risk organizations have larger demands on their organization than traditional companies have. Risk societies, to come or already present, have new political agendas. Within a risk society the major task is to reduce and distribute the negative side effects of

Popular Abstract in Swedish Syftet med avhandlingen är att undersöka bondeskapets (the peasantry)framtida existens. Analysen görs på global nivå, men framför allt på lokal nivå i samband med implikationerna av Mexikos nya jordreform från 1992. Bonden dekonstrueras i ekonomisk-och sociopolitisk aktör för att belysa hans/hennes complexitet. Försörjningsstrategier i tider då staten ersätts av markandThe thesis deals with a classical issue, that of the fate of the peasantry, in particular the process of the transformation of the peasantry. The aim is to explore whether there is a place for the smallholding peasantry in the future, or if the process of dissolution is inevitable. The discussion of this broad question is approached by first deconstructing the peasantry into economic actors and so

The role of immunoglobulin A (IgA) anti-tissue transglutaminase antibodies (IgA-tTG) as predictors of untreated celiac disease (CoD) is well documented, and the presence and levels of these antibodies are most accurately monitored with native or recombinant human antigens. However, IgA-deficient CoD patients are not identified by IgA serology, and conflicting results concerning the diagnostic vali

The anthology deals with pedagogical problems within academic teaching.

Popular Abstract in Swedish Avhandlingen innehåller fyra arbeten om några aspekter på ickelineära paraboliska ekvationer och system. I det första arbetet presenterar vi ett resultat om "quenching" vid dynamiska randvillkor. Det andra arbetet rör global existens av klassiska lösningar till vissa paraboliska system. I det tredje arbetet bestämmer vi optimala konstanter för vissa Gagliardo-NirenbergThis thesis contains four papers about some aspects of nonlinear parabolic equations and systems. Paper 1. A note on quenching for parabolic equations with dynamic boundary conditions We present a quenching result for semilinear parabolic equations with dynamic boundary conditions in bounded domains with a smooth boundary. Paper 2. On global existence for semilinear parabolic systems We presen

The process K-l3 is calculated to two-loop order (p(6)) in chiral perturbation theory (ChPT) in the isospin conserved case. We present expressions suitable for use with previous work in two-loop ChPT where the order p(4) parameters (L-i(r)) were determined from experiment. We point out that all the order p(6) parameters (C-i(r)) that appear in the value of f(+)(0) relevant for the determination of

Persistent aneurysm perfusion represents failure of endovascular repair. The leak may occur around either end of the prosthesis or through a collateral route. Most cases can be treated by endovascular means. Stents can be rotated, the prosthesis can be lengthened at either end, and collateral pathways can be occluded, all without recourse to open repair. This report describes the management of per