'The Social Worker as Bad Object': A Response to Marguerite Valentine

Correspondence to Nigel Thomas, Department of Social Policy and Applied Social Studies, University of Wales, Swansea, Swansea SA2 8PP. Summary Valentine's article in the British Journal of Social Work (Vol.24, No. 1, February 1994) examined the processes whereby socialwork agencies defend against feelings of blame introjected bysocial workers as a result of public projections of fear andanxiety about child abuse. One of these processes is claimedto be the increasing regulation of practice, exemplified bythe Childrens Act 1989. While welcoming Valentine's generalargument, this article argues that it contains a fundamentaland serious misreading of the Children Act.     

International doctoral students as knowledge brokers: reciprocity,trust and solidarity in transnational networks

In this article, we examine the role of brokerage, the knowledge that brokers transfer and the social conditions of that transfer. Previous research suggests that highly skilled migrants spanning multiple locales have the advantage of being able to transfer knowledge as they move from one place to another. In this study, using a network perspective, we look at the activities of international doctoral students in their transfer of knowledge and illustrate the underlying social conditions of knowledge transfer through transnational friendship networks. Using a qualitative methodology, we examine the research questions and 35 in‐depth interviews, as well as egocentric network analysis conducted in Germany. In the findings, we explore the social conditions of knowledge brokerage, including trust, reciprocity and solidarity. Finally, we discuss the implications for further research on knowledge sharing among brokers and international students.     

A COMPARISON OF ORDER-RELEASE AND DISPATCH RULES FOR THE DYNAMIC WEIGHTED EARLY/TARDY PROBLEM

The early/tardy problem is one of the most vexing pieces of the complex production scheduling decision process. So far most of the research has been on single-machine environments. Hence, we considered the weighted early/tardy scheduling problem in a simulated dynamic multimachine job shop. We analyzed controlled job-release and dispatch rules using time and cost information at a variety of stationary and nonstationary utilization rates, due-date allowances, and early/tardy cost levels. We found a newly developed method for controlling the release for all job operations using early/tardy cost information, superior to other release mechanisms overall in both our stationary and nonstationary analyses. We found immediate release useful at many high utilization conditions and a gateway-only release method best in many low utilization conditions. A modified version of a single-machine early/tardy dispatch method was clearly superior to the dispatch rules for almost all the simulated shop conditions.