In preindustrial society, the loss of a spouse usually impelled the surviving party to adapt quickly by choosing between certain strategies: to remain the head of the household, to remarry, to enter a household headed by a child or the spouse of child, to dissolve the household and enter into an unrelated person's household, or to migrate out of the parish. The use of competing-risk hazard models

Selective catalytic reduction of NOx (SCR) has been recognised as an effective post-combustion method for reducing nitrogen oxides from stationary sources. The cost of replacing the catalyst is a major part of the maintenance of the SCR system, hence it is desirable to advance methods to prolong the catalyst life. The objectives of this thesis were to investigate the extent and the mechanism of de

While the purpuse of the study is to understand drug abuse through experiences told by individuals in life history interviews, the analyses moves beyond the level of descriptive life history. The interview material is interpreted within a theoretical framework, where the multidimensional character of drug abuse is considered. Three perspectives are applied in the analyses: (1) Practise: Different

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The paper discusses the motivation for and outcome of the addition of socially oriented so called “off-task” conversational abilities to an existing “teachable agent” (TA) in an educational mathematics game. The purpose of the extension is to affect constructs known to promote learning, such as self-efficacy and engagement, as well as enhancing students’ experiences of the game. A comparison of st

On Charlot & Sture Johannesson's The Digital Theatre

The text discusses the phenomenon of modern rune carvers within the Nordic countries. The article illuminates the purposes and different meanings connected to the act of rune carving in our time. It is concluded that the shaping of identity in close relation to visions of past times is an important part of the rune carving activities of today.

Construction projects are costing too much and taking too long as a consequence of unnecessary omissions and errors in project documentation and sub-optimal coordination of design information between consultant disciplines. The theory behind BIM provides an exciting integrated solution for project information management, however in this new process further effort is required to define the content

Antibodies are important proteins participating in a number of reactions to protect us from harmful diseases. Apart from this important function, they are also useful in different technical and medical applications. This, however, relies on our possibility to produce antibodies in vitro. In the first part of my thesis a new technology called CDR shuffling was developed to create diverse and highly