Since 1990 sickness benefits have been reduced in Sweden. In this paper we use data from the labour force survey to study the introduction of a qualification day in 1993. Our main centre of interest is the distributional effects caused by this cutback, and to this end we analyse a large number of interactions between background variables and the reform dummy. Considerable attention is thus paid to

Popular Abstract in Swedish Insekter använder sig av kemiska signaler i de flesta sammanhang. De söker efter föda, partners eller äggläggningsställen med hjälp av dofter. Signalerna tas emot via antennerna och utlöser ett visst beteende, exempelvis anflygning till eller äggläggning på födan. Mottfjärilar, såsom indiskt mjölmott (Plodia interpunctella), kvarnmott (Ephestia kuehniella) och mandelmotMoths use chemical signals emanating from food to find sites for oviposition and subsequent larval feeding. By identifying these odours, novel approaches to pest management can be developed, such as monitoring of females in pest populations. The pyralid moths studied in this thesis, the almond moth (Ephestia cautella), the Mediterranean flour moth (E. kuehniella) and the Indian meal moth (Plodia i

The position and role of the layman in the Schartau Church revival tradition is emphasized as a complement to earlier research on clergymen and women. Spiritual letters, funeral sermons, and fictional literature are used as sources.

The phylogeny of the Patagonian-Antarctic genus Himantormia is investigated with nuclear ITS rDNA sequences in PAUP. The monotypic genus Nimisia is synonymized with Himantormia, and the new combination H. deusta is proposed. The secondary chemistry was investigated using HPLC; protocetraric, stictic, succinprotocetraric and confumarprotocetraric acids were detected in H. deusta for the first time,

Popular Abstract in Swedish Värmebehandling (termoterapi) av tumör baseras på kunskap om den celldödande effekten av värme. Den har begränsats av svårigheten att kontrollera temperaturutbredningen så att en selektiv och tillräcklig effekt erhålls, och detta gäller särskilt djupt belägna tumörer. Interstitiell laser termoterapi (ILT) med Nd:YAG laser är en ny behandlingsform som ger de tekniska förInterstitial laser thermotherapy (ILT) is a method well suited for selective local destruction of malignant tumours. In the present work, a laser thermotherapy system based on feedback temperature control of energy delivery (through computerised feedback system) was developed. Temperature control was excellent in experiments without carbonization and with preserved light penetration, whereas tempe

Compaction and shear strength tests have been performed on different compacted fine-grained tills. The results show that the water sensitivity of the soil is not only dependent on particle size but also on the soil's chemical composition. Comparisons between modified Proctor and the moisture condition value (MCV) show similarities between the optimum moisture content despite the differences in com

A rational, analytical approach to a fire engineering design of load-bearing steel structures is described. The method of design is directly based on the natural compartment fire concept and on strictly defined functional requirements and performance criteria. The method is permitted to be generally applied in Sweden, as one alternative, since about ten years. For facilitating the practical applic