1,721,072 research outputs found
Dezentrale Produktion, 3D-Druck und Nachhaltigkeit
Full text linkDEZENTRALE PRODUKTION, 3D-DRUCK UND NACHHALTIGKEIT
Dezentrale Produktion, 3D-Druck und Nachhaltigkeit / Petschow, Ulrich (Rights reserved) (-
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
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
3D-Druck und Nachhaltigkeit. Im Gespräch mit Clara Vazquez-Martel & Ulrich Petschow
No full textIn fünf Folgen blickt die Podcast-Reihe „Auf Knopfdruck – 3D-Druck für die Gesellschaft von morgen“ in die Zukunft des 3D-Drucks und stellt die Frage, was heute schon auf „Auf Knopfdruck“ passiert und was vielleicht in naher Zukunft möglich sein wird. Dabei geht es immer auch darum, wie innovative Fertigungstechnologien in der Gesellschaft aufgenommen und genutzt werden.
In der fünften und letzten Folge des Podcasts geht es um die Chancen und Herausforderungen, die der 3D-Druck als Fertigungstechnologie für eine nachhaltigere Produktion bietet. Kommt es zu einer stärkeren Regionalisierung, wenn man Dinge flexibel vor Ort drucken kann? Welche Innovationen sind notwendig, damit der 3D-Druck nicht noch mehr Wegwerfplastik produziert?
Moderatorin Isabelle Rogge spricht mit Clara Vazquez-Martel (Universität Heidelberg) und Ulrich Petschow (IÖW Berlin) über die Nachhaltigkeitspotenziale des 3D-Drucks und über faszinierende Entwicklungen wie Sonnenblumenöl als Tinte
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Ein systemischer Pfadwechsel ist erforderlich
Full text linkDie Klima- und Biodiversitätskrise beruhen beide auf systemischen Dynamiken, die sich im Kontext der Aufklärung herausgebildet (Herrschaftsschema) und uns ins Zeitalter des Anthropozäns geführt haben. Es geht um die „Bewohnbarkeit“ des Planeten. Neue Entwicklungspfade sind erforderlich, die den Dualismus Kultur/Natur überwinden. Das Leitbild des Konvivialismus könnte einen Pfadwechsel befördern
Umweltpolitik im Anthropozän braucht gemeinsame Verantwortung und neue Allianzen: Klimawandel, Governance und globale Politiken
No full textPolykrisen, Klimawandel, technologische Umbrüche: Die Umweltpolitik steckt in einer Sackgasse. Der Beitrag analysiert, wie sich Konzepte wie das Anthropozän und globale Governance verändern – und warum die Ideen der Moderne neu gedacht werden müssen
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