118,927 research outputs found
Hidrocarburos e hidroelectricidad: Una aproximación a la trama energía, política y cultura en el norte patagónico
No full textEn una época en que la transformación de la matriz energética se presenta casi como un imperativo, las relaciones entre energía, política y cultura cobran protagonismo. Orientado a articular la materialidad de los bienes de la naturaleza con su rol en la creación y fortalecimiento de determinados vínculos sociales, económicos y políticos, este texto se propone explorar algunos aspectos de la trama entre energía, política y cultura en el norte patagónico. En particular tomaremos dos casos asociados, cada uno, a un recurso específico: la producción de hidrocarburos en la zona de Catriel (provincia de Río Negro) y la producción de energía hidroeléctrica a pequeña escala en la Comarca Andina del Paralelo 42° (provincias de Río Negro y Chubut). En cada caso, avanzaremos preguntas y líneas de análisis sobre las relaciones sociales, económicas y políticas que se articulan alrededor de dichos recursos involucrando y poniendo en tensión intereses y capacidades de negociación de diferentes actores sociales, distintas lógicas territoriales, marcos regulatorios y legales así como una serie de reclamos que se presentan, en buena medida, en clave socioambiental y territorial. Proponemos abordar la relación entre energía, política y cultura teniendo en cuenta la relación históricamente construida entre tierra, política y cultura.Fil: Iñigo Carrera, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio. Universidad Nacional de Río Negro. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio; ArgentinaFil: Mombello, Laura Cecilia. Instituto de Desarrollo Económico y Social; ArgentinaFil: Spivak L´hoste, Ana Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Études sur l'histoire de l'humanité
No full textEl v. 5: Gand [etc.] : chez l'auteur [etc.], 1857 (impr. de F.-L. Dullé-Plus)V. 4: Le christianisme -- V. 5: Les barbares et le catholicism
Movimientos Sociales y Riesgo: Algunas pistas para el análisis de la conflictividad socioambiental
No full textEl objetivo de este capítulo se orienta en dos direcciones. La primera consiste en presentar una serie de herramientas conceptuales para el análisis de situaciones o eventos en que la problemática ambiental -entendida como el deterioro del medio ambiente como resultado de la acción humana- se traduce en conflictos sociales, más precisamente conflictos socioambientales, específicos. La segunda se centra en aplicar, a modo de ejercicio heurístico, algunas de esas herramientas al estudio de conflictos socioambientales que se desarrollaron, o continúan desarrollándose en Argentina. Conflictos socioambientales que, en todos los casos, han alcanzado una alta visibilización en la esfera pública durante las últimas décadas. Los casos seleccionados se vinculan con: 1) la incorporación a gran escala del “paquete tecnológico” de la soja transgénica, especialmente en la región central del país; 2) la mega minería metalífera a cielo abierto en la zona Esquel, provincia de Chubut; y 3) la instalación de plantas productoras de pasta celulosa a la vera del Río Uruguay. La elección de estos casos responde al interés de desplegar diferentes procesos (productivos, sociales, regionales etc.) y actores sociales que confluyen y dan forma a la conflictividad socioambiental en Argentina y, paralelamente, algunas de sus diversas formas de expresión y argumentación.Fil: Moltoni, Luciana Andrea. No especifíca;Fil: Piaz, Agustín Gabriel. Universidad Nacional de San Martín. Escuela de Humanidades. Laboratorio de Investigación en Ciencias Humanas - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Laboratorio de Investigación en Ciencias Humanas; ArgentinaFil: Spivak L´hoste, Ana Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Differentiation of Lactobacillus plantarum, L. pentosus and L. paraplantarum species by RAPD-PCR and AFLP
No full textTwo high-resolution genotypic techniques (RAPD-PCR and AFLP) were evaluated for their possibility to discriminate the species Lactobacillus plantarum, Lctobacillus pentosus and Lactobacillus paraplantarum and to type these taxa at the infra-species level. In total 23 strains of L. plantarum, three strains of L. pentosus, two strains of L. paraplantarum and two related strains for which the species assignment was not clear, were studied. For RAPD-PCR, suitable oligonucleotides and amplification conditions were selected and tested. For AFLP, a double digest of total genomic DNA was used and a subset of restriction fragments was selectively amplified and visualised using different primer combinations. Both methodologies generated species-specific electrophoretic profiles. Moreover, the presence of distinct subgroups was revealed within the species L. plantarum
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Reclassification of Leuconostoc argentinum as a later synonym of Leuconostoc lactis.
No full textLeuconostoc argentinum, Leuconostoc lactis and ten related strains from Romanian dairy products formed a single cluster, clearly separated from other Leuconostoc species, after numerical analysis of repetitive extragenic palindromic-PCR patterns, whole-cell protein profiles (SDS-PAGE) and fluorescent amplified fragment length polymorphism (FAFLP) band patterns. 16S rRNA gene sequence analysis confirmed a very high similarity between both type strains and representative dairy isolates (>99.6 %). DNA-DNA hybridization experiments revealed high relatedness values between the type strains of L. argentinum and L. lactis and between these strains and representative Romanian strains. These data and the lack of phenotypic distinctive characteristics demonstrate that L. argentinum and L. lactis are synonymous
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