By bringing together science studies, information science and ethnographic fieldwork in interdisciplinary research the author argues for the relevance of ethnographic practices when studying information systems as infrastructures of communication. Ethnographic fieldwork focuses attention on fringes and materialities of infrastructures and renders the researcher able to read the invisible layers...

Abstract The iron and steel industry generates around 10 % of global greenhouse gas emissions. bulk the emissions originates from ore reduction. In this reduction, coal is used as a reagent. Steelmakers could switch to hydrogen-based direct reduction using hydrogen instead reagent reduce pig iron. This would eliminate CO 2 equivalent process in traditional blast furnace. However, requires massi...

In the Spring 1995 issue of Health Affairs Mark Pauly and John Goodman outlined their proposal for medical savings accounts (MSAs) supplemented with tax credits to purchase insurance and encourage cost-effective consumer behavior. This proposal has been widely debuted, both in Washington and across the nation. To further enlighten the debate, Health Affairs presents two accounts of the experien...