1,721,022 research outputs found
Subsistence migration: Smallholder food security and the maintenance of agriculture through mobility in Nicaragua
No full textNational Science Foundation, Grant/Award Number: 105681
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Toward a Political Ecology of Migration: Land, Labor Migration, and Climate Change in Northwestern Nicaragua
No full textWe would like to thank our field and data entry assistants (Santos Esteban Cruz Montoya, Lisa Green, Juan Carlos Joo Chang, Rose Long, Juan Carlos Ocampo, Jose Joel Ordofiez Pineda, and Andres Zamudio) and the research participants in Somotillo, Nicaragua. We also thank Morey Burnham, Paige Fischer, Zhao Ma, and Laura Vang Rasmussen for comments on drafts. This publication is based upon work supported by the National Science Foundation under Grant Number 1056811.Agradecemos a nuestros asistentes de campo y de ingreso de datos (Santos Esteban Cruz Montoya, Lisa Green, Juan Carlos Joo Chang, Rose Long, Juan Carlos Ocampo, José Joel Ordóñez Pineda y Andrés Zamudio) y a los participantes de la investigación en Somotillo, Nicaragua. También agradecemos a Morey Burnham, Paige Fischer, Zhao Ma y Laura Vang Rasmussen por sus comentarios sobre los borradores. Esta publicación se basa en el trabajo financiado por la Fundación Nacional de Ciencias (NSF) con el número de subvención 1056811
A Diversity of Migration and Land Couplings: An Introduction to the Special Issue "Migration and Land"
Get PDFVariations on the Author
Get PDF“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
Get PDFWe 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
In the Shadow of the Green Revolution: Constrained Spatial Imaginaries and Smallholder Farming in Guatemala's Pacific Lowlands
No full textMigration as a feature of land system transitions
No full textAuthors draw on research funded by the National Science Foundation grant number 1056811 (USA); by CONICYT-FONDECYT de Iniciacion Folio11170543 (Chile); and by CONACYT-FORDECYTgrant number 281987 (Mexico)
The Slow Displacement of Smallholder Farming Families: Land, Hunger, and Labor Migration in Nicaragua and Guatemala
No full textEsta investigación fue financiada por la National Science Foundation bajo el número de subvención 1056811 (EE. UU.) y CONICYT-FONDECYT de Iniciacion Folio 11170543 (Chile), y la subvención CONACYT-FORDECYT número 281987 (México).This research was funded by the National Science Foundation under grant number 1056811 (USA) and CONICYT-FONDECYT de Iniciacion Folio 11170543 (Chile), and CONACYT-FORDECYT grant number 281987 (Mexico)
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