1,720,972 research outputs found
Reservas de carbono orgánico en suelos con cultivo de nogal en Belén, Catamarca
Full text linkPósterEl comportamiento del carbono orgánico en el suelo
depende no sólo de las características físicas,
ambientales o productivas sino también de la gestión
que se realice en él. El objetivo de este trabajo fue
evaluar la reserva de carbono orgánico (SCO) en el
área de producción nogalera de la localidad de Cóndor
Huasi, Catamarca.EEA CatamarcaFil: Nieto, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: De Bustos, Maria Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Bulacios Muñiz, Olivia del Valle. Universidad Nacional de Catamarca. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Brizuela, Luisa Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Bellanich, Augusto Exequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentin
Alternativas para la reducción de la emisión de metano en bovinos
No full textPublicado en: XLI Reunión Científica Anual. Memorias. Lima : Asociación Peruana de Producción Animal, 2018, p. 54-59El cambio climático (CC) está asociado con el incremento de los gases de efecto invernadero (GEI) resultantes de distintas
actividades humanas. El metano (CH4) y el óxido nitroso (N2O) son los principales GEI emitidos por el sector ganadero
debido a la fermentación entérica y manejo del estiércol. Las emisiones de CH4 por los rumiantes dependen de varios
factores, entre los que se puede mencionar tanto la cantidad como el tipo de alimento consumido. En este trabajo se
presentan diferentes estrategias de mitigación al CC, varias de ellas en fase experimental, que se relacionan con
actividades que conducen a reducir las emisiones y con el incremento de la captura de estos gases (sumideros). Las
estrategias de mitigación deberían ser abordadas en un contexto global ya que se puede minimizar la emisión de CH4 pero
esta reducción podría estar repercutiendo en el incremento de las emisiones de N2O. En general, el aumento de la
productividad y la eficiencia de los sistemas ganaderos son estrategias clave para reducir la intensidad de las emisiones.Instituto de PatobiologíaFil: Ceron Cucchi, Maria Esperanza. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Scorcione Turcato, Maria Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Nieto, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentin
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Enteric methane emissions from beef cattle farming in the central semiarid region of Argentina
Full text linkEste trabajo fue publicado en: Revista Argentina de Producción Animal 44 (Supl. 1): 380 (2024).El objetivo
del trabajo fue determinar los factores de conversión (FC) de la
emisión de CH4 entérico en la invernada de bovinos Aberdeen
Angus (AA) en la región del semiárido central, considerando
esta información clave para mejorar las estimaciones del
inventario nacional de GEI y promover la sustentabilidad de los
sistemas productivos de la zona.EEA San LuisFil: Guzman, Maria Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; ArgentinaFil: Guzman, Maria Laura. Universidad Nacional de San Luis. Facultad de Ingeniería y Ciencias Agropecuarias; ArgentinaFil: Colazo, Juan Cruz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; ArgentinaFil: Colazo, Juan Cruz. Universidad Nacional de San Luis. Facultad de Ingeniería y Ciencias Agropecuarias; ArgentinaFil: Ceron Cucchi, Maria Esperanza. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología Veterinaria; ArgentinaFil: Ceron Cucchi, Maria Esperanza. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Patobiología Veterinaria; ArgentinaFil: Nieto, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Nieto Albarracín, Ana Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Gere, José Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Unidad de Investigación y Desarrollo de las Ingenierías (UIDI); ArgentinaFil: Gere, José Ignacio. Universidad Tecnológica Nacional (UTN). Unidad de Investigación y Desarrollo de las Ingenierías (UIDI); Argentin
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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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