Researching arts, culture, migration and change: a multi (trans)disciplinary challenge for international migration studies.

The paper first discusses why it is important to research the relations between migration, arts, and cultures. Second, it discusses the most promising methodological options to do it fruitfully. It concludes by claiming that the additional value of such investigations is both to allow a more comprehensive understanding of the migration process, and to move away from the victimization of migrants "rehumanize" them.

Isolation and molecular cloning of a fast-growing strain of human hepatitis A virus from its double-stranded replicative form.

A fast-growing strain of human hepatitis A virus was selected and characterized. The virus has the unusual property of developing a strong cytopathic effect in tissue culture in 7 to 10 days. Sequences of the viral genome were cloned into recombinant plasmids with the double-stranded replicative form as a template for the reverse transcription of cDNA.