1,723,274 research outputs found
Navajo Ponies by Gerard C. Delano
A 1975 Santa Fe Railroad pocket calendar depicting a group of ponies grazing through a field, surrounded by rock formations as a man follows behind on horseback on one side, and a January-December calendar for the year 1975 on the other. Art by Gerard C. Delano
Lesourd (J.A.), Gerard (C.) - Histoire économique, XIXe et XXe siècles.
Lhomme Jean. Lesourd (J.A.), Gerard (C.) - Histoire économique, XIXe et XXe siècles.. In: Revue économique, volume 15, n°2, 1964. pp. 319-321
Navajo Ponies by Gerard C. Delano
A 1975 Santa Fe Railroad pocket calendar depicting a group of ponies grazing through a field, surrounded by rock formations as a man follows behind on horseback
Monument Valley by Gerard C. Delano
A 1966 Santa Fe Railroad pocket calendar depicting a drawing of an indigenous man riding a horse, accompanied by a fox, at Monument Valley in Arizona on one side and a January-December calendar for the year 1966 on the other
Monument Valley by Gerard C. Delano
A 1966 Santa Fe Railroad pocket calendar depicting a drawing of an indigenous man riding a horse, accompanied by a fox, at Monument Valley in Arizona
On the adiabatic limit of Hadamard states
We consider the adiabatic limit of Hadamard states for free quantum Klein–Gordon fields, when the background metric and the field mass are slowly varied from their initial to final values. If the Klein–Gordon field stays massive, we prove that the adiabatic limit of the initial vacuum state is the (final) vacuum state, by extending to the symplectic framework the adiabatic theorem of Avron–Seiler–Yaffe. In cases when only the field mass is varied, using an abstract version of the mode decomposition method we can also consider the case when the initial or final mass vanishes, and the initial state is either a thermal state or a more general Hadamard state
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
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