The forward to this collection of texts about the use of new media for protest politics by social movements aims to set the intellectual stage for the chapter that follow. In particular the socio-cultural origins as well as limitations of the internet in these civic contests are highlighted

Fuel cells are promising for future energy systems, since they are energy efficient and, when hydrogen is used as fuel, there are no emissions of greenhouse gases. Fuel cells have during recent years various improvements, however the technology is still in the early phases of development, this can be noted by the lack of dominant design both for singe fuel cells, stacks and for entire fuel cell sy

I kapitlet beskrivs grundläggande begrepp inom behaviouristisk inlärningsteori och kognitiv personlighetsteori. Fokus läggs på de teorier som haft störst praktisk betydelse genom att de ligger till grund för olika former av kognitiv terapi och beteendeterapi. Till de begrepp som behandlas hör: respondent och operant beteende, positiv och negativ förstärkning, modellinlärning, automatiska tankar, k

Three methods are presented to calculate the load distribution in a chain drive containing two sprockets and one chain. The rollers, which are in contact with the sprockets, can move along the tooth flanks and their positions are given by force equilibrium. Since the positions of the rollers, and thereby also the load distribution, depend on the two connecting spans, it has been necessary to inclu

A systematic study of cell membrane morphologies whose structure is governed by cubic symmetries has been performed. It is suggested that they are described by periodic cubic surfaces for which space filling surface foliations given by truncated Fourier series defined by the space groups is used as structural representations. Using this a method is developed which enables a direct ultrastructural

Not available.

We consider whether stellar collisions can explain the observed depletion of red giants in the Galactic center. We model the stellar population with two different IMFs: 1) the Miller-Scalo and 2) a much flatter IMF. In the former case, low-mass main-sequence stars dominate the population, and collisions are unable to remove red giants out to 0.4 pc although brighter red giants much closer in may b

A business analyst who commences an investigation into design requirements for a new work system probably does not ‘label’ her inquiry process as research. However, a research perspective is needed if a productive learning spiral is to be established in which ‘useful’ systems can be created. Systematic, collaborative inquiry adopting an complex, open systems perspective is required in order to est

Brief description of the medieval seal of Dalby monastery, on which the emblem for the 950th jubilee of the construction of the church was based.