1,720,977 research outputs found
First evidence of reproduction of the Crested Myna (Acridotheres cristatellus) in Córdoba, Argentina
Get PDFEl Estornino Crestado (Acridotheres cristatellus) es un ave que ha sido introducida en distintas partes del mundo y que se la considera con potencial invasor y perjudicial para cultivos y aves nativas. Los primeros registros en Argentina son en Buenos Aires en 1982, pero actualmente ya cuenta con pequeñas poblaciones en varias provincias del país. Sin embargo, solo existen datos de su reproducción en Buenos Aires y Santa Fe. En la presente nota se reporta por primera vez evidencia sobre la reproducción del Estornino Crestado en la capital de la provincia de Córdoba, Argentina, y por lo tanto de su expansión en el territorio.The Crested Myna is a bird that has been introduced in different parts of the world and is considered potentially invasive and harmful to crops and native birds. The first records in Argentina were in Buenos Aires in 1982, but currently there are small populations in several provinces of the country. However, there are only data on its reproduction in Buenos Aires and Santa Fe. This note reports for the first time evidence of Crested Myna breeding in the capital of the province of Córdoba, Argentina, and therefore of its expansion in the territory.Fil: Orso, Gabriel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentin
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
Variations 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
Observations on access to overnight sites of the white-collared Swift (streptoprocne zonaris) in the sierras de Córdoba, Argentina
Get PDFEl pernocte comunal es un comportamiento común en especies de vencejos. Se ha sugerido que dicho comportamiento reduce la depredación. A pesar de la importancia del comportamiento de ingreso a los dormideros en la supervivencia de aves gregarias, poco se sabe sobre esta conducta en el vencejo de collar (Streptoprocne zonaris). Entre los años 2016-2020, se observó en cinco ocasiones el comportamiento de ingreso a cavidades de vencejos de collar: al atardecer, se formó una bandada numerosa cerca de la cavidad de pernocte. Posteriormente, de la bandada principal se separó un grupo más pequeño el cual se dirigió a alta velocidad hacia la cavidad. De este grupo, sólo algunos individuos ingresaron, mientras que el resto se reincorporó a la bandada principal. El comportamiento reportado en esta nota podría considerarse antipredatorio y constituye las primeras observaciones del comportamiento de ingreso del vencejo de collar a las cavidades que utiliza.The communal roosting is a common behavior in swift species. It has been suggested that such behavior reduces predation. Despite the importance of roosting cavity-entry behavior in the survival of gregarious birds, little is known about this behavior in the White-collared Swift (Streptoprocne zonaris). During 2016-2020, on five occasions we observed the cavity-entering behavior in White-collared Swift: at dusk, a large flock was formed near their nesting cavity. Subsequently, a smaller group separated from the main flock and sped towards the cavity. Of this group, only a few individuals entered, while the rest rejoined the main flock. The behavior reported in this note could be considered antipredatory and constitutes the first observations of the entrance behavior of the White-collared Swift to the cavities it uses.Fil: Merlo, Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Orso, Gabriel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Zárate, Valentín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentin
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
Dataset: time series of short- and long-term physiological and behavioral responses of Japanese quail (Coturnix japonica) under heat stress and thymol supplementation
No full textWe provide raw data on physiological and behavioral variables of female quail (Coturnix japonica) under chronic cyclic heat stress and supplemented with thymol, both on long-term (i.e. weeks; Experiment 1) and daily and short-term time scales (i.e. within day; Experiment 2).Fil: Fernández, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Lábaque, María Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Orso, Gabriel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Kembro, Jackelyn Melissa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentin
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
- …
