1,721,233 research outputs found
A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands
No full textRogers, D. Christopher, Cruz-Rivera, Edwin (2021): A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands. Journal of Natural History 55 (13-14): 799-850, DOI: 10.1080/00222933.2021.1923850, URL: http://dx.doi.org/10.1080/00222933.2021.192385
Figure 1 in A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands
No full textFigure 1. Map of St. Thomas (18°21ʹ07.2"N 64°55ʹ33.6"W) and surrounding islets indicating the relative location of sites where specimens were collected. Numbers correspond to the order of the sites in Table 1.Published as part of Rogers, D. Christopher & Cruz-Rivera, Edwin, 2021, A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands, pp. 799-850 in Journal of Natural History 55 (13-14) on page 801, DOI: 10.1080/00222933.2021.1923850, http://zenodo.org/record/546470
Figure 2 in A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands
No full textFigure 2. Forcipomyia sp. 1 larvae: (a) head, right lateral view; (b) head, prothorax and mesothorax, right half, dorsal view; (c) metathorax and abdominal segment I, dorsal view; (d) terminal abdominal segments, right lateral view; (e) terminal abdominal segments, dorsal view. Scale bar = 1 mm.Published as part of Rogers, D. Christopher & Cruz-Rivera, Edwin, 2021, A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands, pp. 799-850 in Journal of Natural History 55 (13-14) on page 834, DOI: 10.1080/00222933.2021.1923850, http://zenodo.org/record/546470
Buenoa scimitra
No full textBuenoa scimitra (Bare, 1925) Buenoa scimitra is widespread across North America and the Antilles, where it has been recorded in at least 15 different islands (Truxal 1953; Nieser 1967, 1969c; Naranjo et al. 2010; Lanigan and Hyslop 2011). Nieser (1969c) reported it from St. Thomas and St. Croix. We collected this species from the water hazards at the Herman E. Moore Golf Course on the University of the Virgin Islands campus.Published as part of Rogers, D. Christopher & Cruz-Rivera, Edwin, 2021, A preliminary survey of the inland aquatic macroinvertebrate biodiversity of St. Thomas, US Virgin Islands, pp. 799-850 in Journal of Natural History 55 (13 - 14) on page 825, DOI: 10.1080/00222933.2021.1923850, http://zenodo.org/record/546470
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
Circuitos Mercantiles de la Ciudad de Santa Fe a Finales de la Época Colonial
Full text linkEn este estudio se analizan los mecanismos de distribución de mercancías importadas y locales en Santafé por medio de las redes de comerciantes de la ciudad en las postrimerías del periodo colonial. A partir de fuentes primarias se reconstruyen tres redes de negocios, las cuales muestran la importancia de las redes familiares y su influencia en el poder político en la realización de sus negocios. Las redes de grandes comerciantes se conectaban con el circuito local a través de las tiendas de tratantes. Aunque el comercio fue una importante actividad en el centro del virreinato, incluidas las efectivas redes de abasto local, el volumen y valor de estos intercambios no se comparan con los llevados a cabo en colonias más ricas, lo cual es consistente con el reducido tamaño de la economía neogranadina.// Abstract. The paper studies the distribution mechanisms of imported and local goods in Santafe through networks of traders in the city during the late colonial period. Based on primary sources three business networks are reconstructed, which show the importance of family networks and their influence on political power in the materialization of its business. Big traders networks were connected to the local circuit through “dealer shops”. While trade was an important activity in the center of the viceroyalty, including the effective local supply networks, the volume and value of these exchanges are not compared with those carried out in richer colonies, which concords with the small size of the economy of Nueva Granada.Maestrí
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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