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During the last decade, a new design of schools with fan assisted natural ventilation has been introduced. Experience and knowledge of this type of ventilation system is therefore needed. The objective of the project is to study the technical and physical conditions required to ensure satisfactory ventilation. The whole project includes analyses of the air flows for different combinations of outdo
Kaposi's sarcoma-associated herpes virus (KSHV) encodes a complement inhibitor named KSHV complement control protein (KCP). We have previously shown that KCP inhibits the human complement system by disrupting the C3 convertase of complement. KCP can accelerate the decay of the classical C3 convertase and it can act as a cofactor for factor I (R), which then cleaves and inactivates C4b or C3b (in t
Popular Abstract in Swedish Materien strävar efter största möjliga oordning (entropi). Det krävs ett aktivt ingripande (energitillskott) för att ordna och separera saker. Har man väl hällt salt i teet är det svårt att ta bort, och byta ut det mot socker. Vid framställningen av olika ämnen får man ofta ut en blandning som även innehåller sådant man inte vill ha, och måste hitta sätt att skilja dem The purification of proteins from raw materials like fermentation broth and other biological sources usually involves several purification steps and is rather time consuming and expensive. This is a major concern in the production of many important protein products e.g. pharmaceuticals such as insulin and blood coagulation factors. One way to speed up the isolation of protein from particle-contai
Mathematical morphology is a powerful means to specify image manipulations; discrete-time cellular neural networks (DT-CNN) is the fast realization. The attractive combination has been sufficiently shown for simple problems but tends to fail in efficiency for more complex ones. The paper introduces a complement and argument swap (CAS) equivalence that allows to solve an image processing problem th
The blade tip region encounters high thermal loads because of the hot gas leakage flows, and it must therefore be cooled to ensure a long durability and safe operation. A common way to cool a blade tip is to design serpentine passages with 180-deg turn under the blade tip-cap inside the turbine blade. Improved internal convective cooling is therefore required to increase the blade tip lifetime. Di
The catalyst layer (CL) in polymer electrolyte membrane (PEM) fuel cells is one of the key components regulating the overall performance of the cell. In PEM fuel cells, there are two CLs having identical composition for hydrogen oxidation (HO) and oxygen reduction (OR) reactions. There are four phases inside the CL, namely: carbon, Pt particles, ionomer and voids. In this work, a micro-model of th
This paper reports on the in-context evaluation of an audio-tactile interactive tourist guide - one test was done in a medieval city center, and the other was done at an archaeological site. The activity theory framework was used as a perspective to guide design, field-study and analysis. The evaluation shows that the guide allows users to experience an augmented reality, while keeping the environ
In the EC project, ANNIE (Application of Neural Networks to Integrated Ergonomics) the aim is to develop a human simulation and ergonomic evaluation tool based on a neural network. Recorded movement patterns from subjects, performing tasks in real environments, will train the network. The net will control a mannequin, to perform human-like movements. The human model will be placed in different vir
Human antibodies generated in vitro may be highly valuable for diagnostic and therapeutic purposes. For a long time most human antibodies produced in vitro have been of the IgM isotype with rather low affinities. In this thesis a method for production of IgG switched antigen-specific human antibodies is presented. This is a two step protocol, in which the first step is a selection procedure of don
Popular Abstract in Swedish Förhållandet mellan utrikespolitik och demokrati har behandlats inom statsvetenskapen i hundratals år. En vanlig uppfattning har varit att behandlingen av utrikespolitiska frågor svårligen kan ske i demokratiska former. Inom utrikespolitiken har riksdagen traditionellt en svagare ställning gentemot regeringen än i inrikespolitiska frågor. I fokus för denna avhandling sThe increasing internationalization puts new demands on national democracy and national parliamentarism. The questions posed in this dissertation are if the parliamentary model for domestic policy or the parliamentary model for foreign policy is the most relevant when describing the role of the Swedish Riksdag (parliament) in European Union (EU) matters, and whether there have been any changes dur
Extending the product development process to also include the concurrent design of product and packaging is expected to increase efficiency and effectiveness in the development process. Apart from the obvious advantage of reducing the lead times of the development project, improving environmental impact by reducing the consumption of raw material due to the possibility of facilitating a "tailor ma
Deterioration of concrete structures is a worldwide problem. Environmental exposure is known to affect concrete strength in structures. While moisture affects rebound values by lowering them, carbonation does the opposite. The aim of the study was to determine the in-situ concrete strength of three bridge elements, namely, pier, abutment and deck and evaluate the environmental conditions such as m
Colour is disregarded in the analysis of the grammar of a building façade. Contemporary architecture, as well as traditional historical architecture, is built on a relation between colours. Colour schemes of vernacular architecture is a part of the local regional heritage.A re-established exterior colour scheme in rural areas would strengthen the local identity. In Sweden the dominating part of ve
Many control systems have a global dynamical behavior that in addition to a desired stable equilibrium has one or more unstable equilibria or other exceptional trajectories. Typical examples of such systems are pendulums or so called phase locked loops. The objective of the paper is to compare two different methods for analysis of the global behavior in such systems. The first method is LaSalle's
The use of passive house technique has been used in a new wood framed building in Sweden. Besides the positive effect of reduced energy need, highly insulated wooden houses often have a higher risk of moisture and mould problems. The reason is that critical positions is more exposed to higher relative humidity compared to ordinary houses with thinner insulation. To investigate if an external wall
We need to understand the major signalling events in human B cell differentiation in order to be able to regulate the generation of human antigen specific antibodies. This study has focused on the signalling mechanisms involved in generation of germinal centre reaction and secretion of specific antibodies by human B cells, using different in vitro immunisation technologies. Naive human B cells tha
Plug-and-Produce (with the meaning that devices can be plugged in without any manual configurations needed) is an attractive paradigm for manufacturing systems, and in particular for Small and Medium Enterprises (SMEs) that do not have the expertise of system integrators but do need to be able to reconfigure their systems by themselves. One approach for loosely (in terms of timing) coupled devices
Popular Abstract in Swedish Internationalisering av högre utbildning beskrivs i första delen av avhandlingen i ett vidare perspektiv, flera olika forskningstraditioner som berör högre utbildning och internationalisering beskrivs i syfte att utgöra en bakgrund för argument som framhåller ett pedagogiskt och didaktiskt perspektiv som väsentligt i samband med utveckling och konkretisering av en interThe development of higher education in the Western countries involves ideas of internationalisation, included in curricular objectives. Policy-makers stipulate internationalisation ideologies, from a politico-economic perspective, where ideas about flows of various cultural elements are incorporated in visionary idealistic terms. Nevertheless teachers and students and others concerned with higher
