Ludwik Fleck is widely recognized as a precursor of Science and Technology Studies, but his case study on the development of the Wassermann reaction as a test for detecting syphilis has never been subjected to detailed empirical scrutiny. The fact that Fleck?s monograph is based on a limited set of documentary sources makes his work vulnerable to uncharitable critics. The problematic relation between thought collective and individual scientists in Fleck?s theoretical approach is another reason for a systematic re-examination of his (...) case study, using materials on the early period in the history of the Wassermann reaction (1906?1912). My re-examination highlights several problems in Fleck?s account: a misinterpretation of the switch from antigen detection to antibody detection; a neglect of the ?clinical connection?; an overemphasis on the importance of collective experience leading to implausible views on gross retrospective distortions supposedly inflicted by this experience upon the memories of individual participants; and, finally, a misjudgement of the significance of the acrimonious dispute over the intellectual ownership of the Wassermann reaction. What remains unscathed is Fleck?s picture of a zig-zag course of development from false initial assumptions via detours and cul-de-sacs to a clinically usable test in the end. (shrink)

This study is defined within the context of the critical posthuman project of decentring humanist subjectivity. We argue that because agential realism, and the agency and performativity that go with it, do not enable non-human matter to be accountable, only human matter, in its intra-active becoming with non-human matter, can support an ethical project. Secondly, we map our understanding of Barad’s agential realism, explaining the importance of agential cuts in phenomena-in-their-becoming that are the world worlding itself, and evaluate ethics, agency, (...) and performativity in this material-discursive framework. Thirdly, understanding the material-discursive to underpin storied matter, we engage it via some clarification of narrative, and narrative agency. We conclude that much organic or inorganic nature as non-human matter is directional and responsive, so alive and generative and, in this sense, capable of worlding itself. However, it does not tell its own stories in the process. (shrink)