1,722,590 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Blockchain Systems in Food Supply Chains: An Interpretation Through the Lens of Agency and Technology–Organization–Environment Theories
Full text linkBlockchain (BC) systems are increasingly used by consortia to monitor ex-post opportunism in food supply chains. BC systems differ for BC technical characteristics, complementary technologies, and organizational tools. Yet, little is empirically known about the link between different BC system designs and the context where they are implemented and how contextual factors influence the adoption of each BC system. This study analyzed different BC systems in 11 principal–agent dyads within one food supply network. Each dyad is composed of a consortium of fruit producers and packers (the principal) and a supply network actor (the agent). Inspired by agency theory, this research associates BC system design choices with levels of system trust (trust in the technology) that are consistent with the risk level of ex-post opportunism. Compared to previous studies, a new studying perspective regarding the concept of ‘BC trust’ arises. Starting from technology–organization–environment (TOE) theory, this paper also offers an interpretation of how TOE factors intervene in the adoption of different BC systems by agents. By distinguishing between different BC systems, it offers a diverse perspective in grounding TOE in BC research. Together with relevant future research directions, these findings provide adopters and policymakers with important practical insights
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Rapporto tra formazione di schiuma ed anidride solforosa durante la fermentazione dei mosti
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