1,721,359 research outputs found
FIGURE 1 in A new species of Rhodania Goux (Hemiptera, Coccoidea, Pseudococcidae) and new records of two other mealybug species from Iran
No full textFIGURE 1. Rhodania aeluropi sp. nov. Adult female.Published as part of Williams, D.J. & Moghaddam, M., 2007, A new species of Rhodania Goux (Hemiptera, Coccoidea, Pseudococcidae) and new records of two other mealybug species from Iran, pp. 37-44 in Zootaxa 1398 (1) on page 39, DOI: 10.11646/zootaxa.1398.1.4, http://zenodo.org/record/507676
A new species of Rhodania Goux (Hemiptera, Coccoidea, Pseudococcidae) and new records of two other mealybug species from Iran
No full textWilliams, D.J., Moghaddam, M. (2007): A new species of Rhodania Goux (Hemiptera, Coccoidea, Pseudococcidae) and new records of two other mealybug species from Iran. Zootaxa 1398 (1): 37-44, DOI: 10.11646/zootaxa.1398.1.4, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1398.1.
New Results on the Characterization of Strictly Positive Real Matrix Transfer Functions
No full textIn this article, we analyze the high-frequency condition that discriminates strictly positive real systems from weakly strictly positive real ones. Different versions of this condition have been proposed in the literature. We consider the general case of multi-input-multi-output (MIMO) systems and derive new equivalent conditions. A graphic interpretation is also presented. In comparison to the existing literature, the conditions derived here are easier to check, especially for large dimension systems and high-order systems. Several illustrative examples are provided to support the results
Comments on "New Results on the Characterization of Strictly Positive Real Matrix Transfer Functions"
No full textIn this note, we address an inconsistency in our recent article (Hakimi-Moghaddam and Ferrante, 2021). In particular, we provide an example showing that Lemma III.1 of that article is not correct. We show how the statement of this lemma can be modified in order to resolve this inconsistency. We also describe how this modification impact the other results of the article. Notwithstanding the fact that Lemma III.1 plays a central role in the proof of the main result of (Hakimi-Moghaddam and Ferrante, 2021), we show that such a result is indeed correct as it may be derived by using the modified (and correct) version of the lemma. An illustrative example is provided to support the results
SoilSCAPE Upscaling Code v1.0.0 (Version v1.0.0)
No full textCode used to implement the Random Forests based method for upscaling _in situ_ estimates of soil moisture described in the following paper:
Clewley, D., Whitcomb, J., Akbar, R., Silva, Berg, A., Adams, J.R., Caldwell, T., Entekhabi, D., and Moghaddam, M. (2017). A method for up-scaling in situ soil moisture measurements to satellite footprint scale using random forests. IEEE Journal of Selected Topics in Applied Earth Observation and Remote Sensing. http://doi.org/10.1109/JSTARS.2017.26902
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
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
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