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In this timely collection of essays, leading American and German scholars analyse immigrant incorporation into the welfare state from a comparative economic, social, and political viewpoint by applying data from the 1980s and 1990s. New insights are revealed into how ethnic stratification and socioeconomic integration is promoted by specific programs and other institutionalized policies in education, labour markets, and welfare. This volume will be an important resource not only to scholars and students in economics and the social and political sciences, but also for professionals in...

Our current understanding of a/ T cell receptor (TCR) ex- pressing T cells advanced from function and specificity to the molecular organization ofthe TCR.We now know that the TCR a and chains together express specificity for (antigenic) peptides presented by the "responder" M H C allele, thus explain- ing the phenomenon of MHC restriction at a molecular level. Surprisingly even though our perception of the molecular organization of the y5 TCR is well advanced, current knowledge of function and specificity of the y5 T cell subset is poor. There- fore it appeared rather timely to bring together...