1,721,098 research outputs found
In memoriam Hans Pohl
El 10 de diciembre de 2019 falleció Hans Pohl, catedrático emérito de historia económica y social en la Universidad de Bonn. Durante 43 años, desde los inicios del Jahrbuch für Geschichte Lateinamerikas en 1964 y hasta 2006, Hans Pohl formó parte del equipo editorial de la revista, contribuyendo así al prestigio internacional del anuario.El 10 de diciembre de 2019 falleció Hans Pohl, catedrático emérito de historia económica y social en la Universidad de Bonn. Durante 43 años, desde los inicios del Jahrbuch für Geschichte Lateinamerikas en 1964 y hasta 2006, Hans Pohl formó parte del equipo editorial de la revista, contribuyendo así al prestigio internacional del anuario.El 10 de diciembre de 2019 falleció Hans Pohl, catedrático emérito de historia económica y social en la Universidad de Bonn. Durante 43 años, desde los inicios del Jahrbuch für Geschichte Lateinamerikas en 1964 y hasta 2006, Hans Pohl formó parte del equipo editorial de la revista, contribuyendo así al prestigio internacional del anuario
In memoriam Hans Pohl
El 10 de diciembre de 2019 falleció Hans Pohl, catedrático emérito de historia económica y social en la Universidad de Bonn. Durante 43 años, desde los inicios del Jahrbuch für Geschichte Lateinamerikas en 1964 y hasta 2006, Hans Pohl formó parte del equipo editorial de la revista, contribuyendo así al prestigio internacional del anuario.El 10 de diciembre de 2019 falleció Hans Pohl, catedrático emérito de historia económica y social en la Universidad de Bonn. Durante 43 años, desde los inicios del Jahrbuch für Geschichte Lateinamerikas en 1964 y hasta 2006, Hans Pohl formó parte del equipo editorial de la revista, contribuyendo así al prestigio internacional del anuario.El 10 de diciembre de 2019 falleció Hans Pohl, catedrático emérito de historia económica y social en la Universidad de Bonn. Durante 43 años, desde los inicios del Jahrbuch für Geschichte Lateinamerikas en 1964 y hasta 2006, Hans Pohl formó parte del equipo editorial de la revista, contribuyendo así al prestigio internacional del anuario
Hans Pohl (dir.), « Überlebenschancen von Unternehmensgründungen », Zeitschrift für Unternehmensgeschichte
Hau Michel. Hans Pohl (dir.), « Überlebenschancen von Unternehmensgründungen », Zeitschrift für Unternehmensgeschichte. In: Annales. Économies, Sociétés, Civilisations. 47ᵉ année, N. 3, 1992. pp. 704-705
Hans Pohl (éd.), The European Discovery of the World and its Economic Effects on Pre-Industrial Society, 1500-1800
Butel Paul. Hans Pohl (éd.), The European Discovery of the World and its Economic Effects on Pre-Industrial Society, 1500-1800. In: Annales. Économies, Sociétés, Civilisations. 47ᵉ année, N. 4-5, 1992. pp. 924-926
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
Appropriate Similarity Measures for Author Cocitation Analysis
We 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
Figure 3 in Archaeomalthus -(Coleoptera, Archostemata) a 'ghost adult ' of Micromalthidae from Upper Permian deposits of Siberia?
Figure 3. Abdominal glands of Micromalthus debilis. (a) Ventrites III – V with median glandular pits. (b) Scanning electron micrograph of the glandular opening.Published as part of Evgeny Viktorovich Yana, Rolf Georg Beutel, John Francis Lawrence, Margarita Igorevna Yavorskaya, Thomas Hörnschemeyer, Hans Pohl, Dmitry Vladimirovich Vassilenko, Alexey Semenovich Bashkuev & Alexander Georgievich Ponomarenko, 2019, Archaeomalthus -(Coleoptera, Archostemata) a 'ghost adult ' of Micromalthidae from Upper Permian deposits of Siberia?, pp. 1-9 in Historical Biology 1561672 on page 6, DOI: 10.1080/08912963.2018.1561672, http://zenodo.org/record/253602
- …
