1,723,108 research outputs found

    Analysis of organizational management and transformational leadership in the exploitation zones of the department of cesar in the face of economic challenges and social responsibility

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    El análisis del impacto económico en las poblaciones productoras de carbón en el Cesar, con el proceso del cierre progresivo de minas de carbón, por la sustitución de energías limpias, es un tema importante y de actualidad en Colombia debido a lo crucial que es la minería específicamente de carbón en la economía del país. La actividad minera, concretamente la asociada con la explotación y exportación de carbón ha sido protagonista dentro de la economía. En el departamento del Cesar, la economía del carbón representa alrededor del 40% de la economía local. Al cerrarse las minas de carbón en el Cesar tiene un impacto económico negativo en las poblaciones productoras de carbón, ya que no se podría explotar millones de toneladas. El Gobierno Nacional ha prorrogado la explotación de carbón a la empresa Drummond que se encuentra en la Loma (Cesar) por 20 años. Finalmente, el análisis del impacto económico en las poblaciones productoras de carbón en el Cesar es un tema importante en Colombia debido a la relevancia que tiene la minería de carbón en la economía del país y el impacto que puede tener si se cierra las minas exactamente de carbón en la economía local.The analysis of the economic impact on the coal producing populations in Cesar, with the process of progressive closure of coal mines, with the substitution of clean energies, is an important and current issue in Colombia due to the crucial importance of coal mining specifically in the country's economy. The mining activity, specifically that associated with the exploitation and export of coal, has been a protagonist in the economy. In the department of Cesar, the coal economy represents about 40% of the local economy. The closure of the coal mines in Cesar has a negative economic impact on the coal producing populations, since millions of tons of coal could not be exploited. The National Government has extended Drummond's coal exploitation in La Loma (Cesar) for 20 years. Finally, the analysis of the economic impact on the coal producing populations in Cesar is an important issue in Colombia due to the relevance of coal mining in the country's economy and the impact that closing the coal mines could have on the local economy.Especializació

    Fertilización con K, S y Zn aumenta la producción de lotus pero no de trébol blanco en mezcla con raigrás en Corrientes = Fertilization with K, S and Zn increases yield of lotus but not of white clover in central Corrientes

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    La fertilización con K, S y Zn puede aumentar la producción de leguminosas en pasturas (Collins et al. 1986; Grewal et al. 2000). Corrientes presenta suelos pobres en estos nutrientes y esta técnica podría favorecer la participación de las leguminosas en verdeos y pasturas mixtas. Los objetivos del trabajo fueron: 1) determinar el efecto de la fertilización completa (P, K, S y Zn) vs fertilización fosforada en la producción de Lotus corniculatus (Lotus) y de Trifolium repens (TB) sembrados con raigrás anual (Rg), y 2) Comparar la producción de Lotus, TB y Medicago sativa (Alfalfa) sembrados con Rg y con fertilización completa.EEA MercedesFil: Barbera, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mercedes; ArgentinaFil: Benitez, Julio Cesar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mercedes; Argentin

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    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

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    “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

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    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

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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