Niklas Luhmann

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BACKGROUND Injecting drug use (IDU) is a growing concern in Tanzania compounded by reports of high-risk injecting and sexual risk behaviours among people who inject drugs (PWID). These behaviours have implications for transmission of blood-borne viruses, including HIV and hepatitis C (HCV). METHODS We recruited 267 PWID (87% male) from Temeke District,(More)
BACKGROUND People who inject drugs (PWID) achieve adherence to and outcomes from hepatitis C virus (HCV) treatment comparable to other patients. Nonetheless, this population has been excluded from treatment by regulation or practice. Approval of safer and more effective oral HCV medicines should offer greater treatment options for PWID, although high(More)
This is an edited and translated transcript of a lecture by Niklas Luhmann in which he outlined the foundation of his systems theory based on the notion of difference and distinction. After a brief introduction to early theories of distinction, the central ideas of SpencerBrown’s Laws of Form as the most radical form of differential thinking are presented.(More)
BACKGROUND Drug use and hepatitis C virus (HCV) are both major public health issues in Georgia. However, the access to HCV prevention and care is still very limited in the country. This study was conducted to examine the HCV epidemic among people who inject drugs (PWID) in Tbilisi and to assess the treatment needs of this most-at-risk population. METHODS(More)
BACKGROUND People who inject drugs (PWID) are disproportionately affected by the hepatitis C (HCV) epidemic. Of the estimated 16 million PWID worldwide, approximately 8 million live with chronic HCV, and around 26% and 23% of the global HCV infections among PWID occur in East/Southeast Asia and Eastern Europe respectively. Globally, few PWID have access to(More)
In his Heidelberg University lecture of 1992, the author uses an all-too prescient torture scenario to exam the function and putative indispensability of norms in modern society. In the exceptional case, recourse to the »normativity of norms« or to »values« proves to be untenable because all norms and values reveal themselves to be undecidable. Viewed from(More)