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The COST 259 Directional Channel Model - Part I

This paper describes a model for mobile radio channels that includes consideration of directions of arrival and is thus suitable for simulations of the performance of wireless systems that use smart antennas. The model is specified for 13 different types of environments, covering macro- micro- and picocells. In this paper, a hierarchy of modeling concepts is described, as well as implementation as

George Lindbeck as a Potential Religious Pluralist

Interreligious dialogue and conversion are two intriguing components in understanding religion. A reading of George Lindbeck constitutes the starting point for a discussion in this paper. The dominant reading of Lindbeck is that he claims that traditions absorb the world. According to this reading of Lindbeck, religious traditions are isolated, and yet the one with the best capacity to assimilate

I Lönnlövets skugga

Våldsamma konflikter mellan landets ursprungsbefolkningar och myndigheterna har på senare tid skakat Kanada. Christer Lindberg ger här, med glimtar från indianbyar, förhandlingsbord, internatskolor och museer, en översikt av de kanadensiska indianerna och deras krav på erkännande, landrättigheter och självstyre. Social misär och fattigdom präglar det dagliga livet på indianreservaten och de som bo

Underhållsstödet - familjepolitikens albatross : 1997 års underhållsstödsreform och dess betydelse för de bidragsskyldiga föräldrarna

A new law regarding child-maintenance was issued in Sweden in 1997. The main purpose of the reform was to make the system more cost-efficient, in order to minimise government expenditure. This was done by advocating a more individualised economic responsibility, as well as new rules for how to calculate maintenance levels. Almost five years later it is clear that the economic goals have not been

Flexible Composites - Strength, Deformation and Fracture Proecesses in Woven and D.O.S. Reinforcement Materials

Popular Abstract in Swedish Teknisk textil är en bred benämning för textila material med användningsområden som inte är beklädnad eller där utseendemässiga krav oftast är av underordnad betydelse. På senare tid har dock designsynpunkter på tekniska textilprodukter kommit att alltmer uppmärksammas och detta belyses i kapitel 10 i avhandlingen. Teknisk textil är en nygammal industrigren som genomgåtIn this thesis the tensile strength, deformation, damage resistance and tear propagation for flexible composites are analysed. There are two essential requirements common to all flexible composites; namely, high tearing strength and good matrix-to-fabric adhesion. The interaction of fabric and matrix is complex. The most critical variables are those of yarn and fabric structure, the mechanical pro

Vasodilator actions of EDHF and anandamide

Popular Abstract in Swedish Det innersta cellagret i blodkärl (endotelet) kan frisätta både kontraktila (kärlsammandragande) och relaxerande (kärlvidgande) faktorer. När receptorer på endotelet stimuleras med till exempel acetylkolin så frisätts relaxerande faktorer. Dessa faktorer verkar vara åtminstone tre till antalet och två av dessa har identifierats som kväveoxid och prostacyclin. Den tredjeVasodilator responses to endothelium-derived hyperpolarizing factor (EDHF) and anandamide in isolated arteries were investigated. A combination of the potassium channel blockers charybdotoxin and apamin inhibits EDHF-mediated relaxations. Experiments in which charybdotoxin or apamin was substituted with other potassium channel inhibitors indicated that small- and intermediate-conductance calcium-a