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Free-riding in Group Work - Mechanisms and Countermeasures

Studies have shown that group work offers great possibilities for deeper learning compared to some more traditional teaching formats [1], but it can also lead to some new problems such as free-riding. Different aspects of group psychology and behaviour as well as impropriate group sizes can be used to explain why and how free-riding develops in groups. With careful course planning teachers can ser

Occupational group therapy in a psychiatric day care unit for long-term mentally ill patients: ward atmosphere, treatment process, and outcome

Popular Abstract in Swedish Tjugo patienter som deltog i psykiatrisk öppenvård baserad på arbetsterapi undersöktes beträffande behandlingsresultat, uppfattningen om vårdklimatet och upplevelsen av behandlingsrelationen med arbetsterapeuten. Psykiatriska symtom, global mental hälsa, livskvalitet och fungerandet i dagligt liv studerades vid inskrivning i behandlingen, vid utskrivning, samt vid en etThe outcomes of 20 patients participating in occupational group therapy at a psychiatric outpatient unit were explored and related to perceptions of the ward atmosphere and the treatment process. The outcome variables - psychiatric symptoms, global mental health, quality of life, and occupational functioning - were measured at admission, at discharge, and 1 year after discharge. The ward atmospher

Iterative decoding of generalized low-density parity-check codes

A generalization of Gallager's low-density parity-check codes is introduced, where as component codes single-error correcting Hamming codes are used instead of single-error detecting parity-check codes. Low-density (LD) parity-check codes were first introduced by Gallager in 1963. These codes are, in combination with iterative decoding, very promising for achieving low error probabilities at a rea

Particle-Induced Phase Separation in Aqueous Solutions containing Colloidal Particles and Adsorbing Polymers

Popular Abstract in Swedish I detta arbete har lösningar bestående av polymerer och kolloidala partiklar studerats. En polymer är en lång molekyl som består av många sammanlänkade repeterande enheter. En repeterande enhet är i sin tur den minsta enhet som återkommer i strukturen. Polymerer finns i många olika former i vår omgivning, både naturligt och syntetiskt framställda. Exempel på polymera maThe influence of added colloidal particles on the phase behaviour of a polymer solution was investigated. Binary, quasi-binary and mixed polymer solutions were used in the study, where at least one of the polymers had an affinity for the surfaces of the colloidal particles. Experimentally, silica and polystyrene latex particles were used as colloidal particles. Theoretical calculations have been p

Nordic Narratives of the Second World War : National Historiographies Revisited

How have the dramatic events of the Second World War been viewed in the Nordic countries? In Nordic Narratives of the Second World War, leading Nordic historians analyse post-war memory and historiography. They explore the relationship between scholarly and public understandings of the war. How have national interpretations been shaped by official security-policy doctrines? And in what way has the