1,721,263 research outputs found
Macroecology of Abiotic Stress Tolerance in Woody Plants of the Northern Hemisphere: Tolerance Biomes and Polytolerance Hotspots
Full text linkUnderstanding the main ecological constraints on plants' adaptive strategies to tolerate multiple abiotic stresses is a central topic in plant ecology. We aimed to uncover such constraints by analysing how the interactions between climate, soil features and species functional traits co-determine the distribution and diversity of stress tolerance strategies to drought, shade, cold and waterlogging in woody plants of the Northern Hemisphere. Functional traits and soil fertility predominantly determined drought and waterlogging/cold tolerance strategies, while climatic factors strongly influenced shade tolerance. We describe the observed patterns by defining ‘stress tolerance biomes’ and ‘polytolerance hotspots’, that is, geographic regions where woody plant assemblages have converged to specific tolerance strategies and where the coexistence of multiple tolerance strategies is frequent. The depiction of these regions provides the first macroecological overview of the main environmental and functional requirements underlying the ecological limits to the diversity of abiotic stress tolerance strategies in woody plants
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
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
Orígenes, significados y creatividad en la orfebrería colonial: La custodia de la iglesia de San Ignacio de la Compañía de Jesús de Santafé (La Lechuga)
Full text linkUno de los objetos mas importantes en la liturgia
católica es la custodia, cuyos modelos europeos fueron
rápidamente apropiados y enriquecidos por los orfebres
coloniales. En la Nueva Granada sobresale la de San
Ignacio, trabajada entre 1700 y 1707 por José de Galaz. Tal como sucedía con la pintura y la escultura, para su
fabricación su autor usó como modelo un grabado de
Mundus Symbolicus (Colonia: Hermann Demen, 1681)
del autor toscano Philippo Picinelli (c.1604.1679).One of the most important objects in the Catholic
liturgy is the monstrance, whose European models were
quickly appropriate and enriched by colonial goldsmiths. The San Ignacio monstrance stand out in New Granada,
crafted between 1700 and 1707 by José de Galaz. As
was the case with painting and sculpture, he used as a
model an engraving from Mundus symbolicus (Colonia: Hermann Demen, 1681) by Tuscan author Philippo
Picinelli (c.1604-1679)
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
Diseño de un sistema de control interno al área de inventario en ventas, distribución y marketing Ltda.
Full text linkEl objetivo del presente estudio, se encuentra relacionado con el diseño de un sistema de control interno en el área de inventario de Ventas, Distribución y Marketing LTDA, que permita la prevención y detección del fraude perpetrado sobre los inventarios de mercancías. Para lograr este propósito, se partió de una investigación de enfoque cualitativo y de alcance aplicativo, cuyo método de estudio fue el inductivo; en lo concerniente al diseño de la investigación, se puede expresar que se operó bajo las dinámicas del llamado estudio de caso, en razón a que la muestra a la cual se le aplicaron las herramientas metodológicas de recolección de información primaria, estuvo conformada por la organización antes mencionada; de esta manera, se puede concluir que el modelo de control interno propuesto significaría para la organización objeto de análisis una herramienta con la cual se propendería por una evaluación continua de los riesgos que amenazan a la compañía con respecto a la malversación de activos físicos como el inventario, a través de la generación de información útil y pertinente para la toma de decisiones. Finalmente, se recomienda a la empresa Ventas, Distribución y Marketing LTDA la implementación de los procedimientos de control interno propuesto en el presente estudio.The aim of this study is related to the design of an internal control system in the area of Stock Ventas, Distribución and Marketing LTDA, including the prevention and detection of fraud perpetrated on inventories of goods. To achieve this purpose, it was on a qualitative research approach and application scope and study method was inductive; with regard to research design, we can express that I operate under the dynamics of so-called case study, due to the sample to which were applied the methodological tools for collecting primary information consisted of the organization above; in this manner, it can be concluded that the model proposed internal control mean for the organization under analysis, a tool which would tend to a continuous assessment of the risks to the company regarding the misuse of physical and inventory assets through generation of useful and relevant for making decisions. Finally, the company Ventas, Distribución and Marketing LTDA recommended the implementation of internal control procedures proposed in this study.Ortiz Rueda, Marta Yesenia-903467d8-6304-4945-b823-2978dca663e0-
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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