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Popular Abstract in Swedish I magtarmkanalen upptas ständigt nyttiga näringsämnen, men samtidigt avvisas skadliga bakterier, gifter och allergiframkallande ämnen. I avhandling beskrivs hur tarmens normala barriärfunktion hos råtta och gris kan förändras på konstgjord väg. I delarbete I har det normala flödet av enzymer från bukspottkörteln till tunntarmen stoppats för att studera dessa enzymers bThe gastrointestinal tract has two opposing functions; to absorb nutrients and electrolytes, and to act as a barrier towards hazardous and non-nutritional substances. In the present thesis the barrier function of the gastrointestinal tract was studied in animal models in vivo, in situ and in vitro. Experimentally induced disorders of the intestinal barriers were evaluated in terms of altered inte

This thesis describes the relations between objects, practices, and individuals. The main objective is to explore the role of artefacts in user-centred participatory design research, specifically for expressing and communicating personal experiences and creating meaning. In a broad sense I draw on experiences from three practices in order to define the scope of the thesis. The first is practice-le

Swedish patent nr 189939. "Anordning för alstring av ett artificiellt tröghetsmoment hos ett roterbart anordnat system". (Device for creating an artificial moment of inertia in a rotating system.) Co-inventor Folke Hector Philips. Granted January 16 1964. Patent also granted in England, France, Holland, Canada, Germany, USA, Austria, Japan. This patent describes a new way of implementing Schuler

It is proposed to capture localized plastic deformation via the inclusion of regularized displacement discontinuities at element boundaries (interfaces) of the finite element subdivision. The regularization is based on a kinematic assumption for an interface that resembles that which is pertinent to the classical shear band concept. As a by-product of the regularization, an intrinsic band width is

We consider a time-hopping impulse-radio system that uses transmitted-reference pulses for implicit channel estimation and equalization. A hybrid receiver structure first performs a filtering matched to the hopping sequence, and a subsequent correlation of the data pulses with the reference pulses. We analyze the performance of such a system both in AWGN and in multipath. For the AWGN case, we giv

This paper investigates the treatment of antonymy in Collins COBUILD Advanced Learner’s English Dictionary (2003) in order to find out what kinds of headwords are provided with antonyms as part of their definitions and also discusses the principles for antonym inclusion in the entries. CCALED includes canonical antonyms such as good/bad and dead/alive, as well as more contextually restricted pairi