177,695 research outputs found
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Physical characteristics of the sonic bangs and other events at Exercise Westminster
No full textExercise Westminster was a demonstration of sonic bangs, together with some explosive bangs and flyovers by a jet aircraft, staged for an invited audience. This Report describes how the Exercise was conducted from the operational point-of-view, and what monitoring measurements were made. An analysis of the physical characteristics of the sonic bangs and other events is made
v. Alford (L.P) & Bangs (John R) Production handbook. Edited. New iork, The Ronald Press G., 1948. 8, XV-1676 p.
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"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae)
No full textPalma, R. Eduardo, Rodríguez-Serrano, Enrique, Rivera-Milla, Eric, Hernandez, Cristian E., Salazar-Bravo, Jorge, Carma, Maria I., Belmar-Lucero, Sebastian, Gutierrez-Tapia, Pablo, Zeballos, Horacio, Yates, Terry L. (2010): Phylogenetic relationships of the pygmy rice rats of the genus Oligoryzomys Bangs, 1900 (Rodentia: Sigmodontinae). Zoological Journal of the Linnean Society 160 (3): 551-566, DOI: 10.1111/j.1096-3642.2009.00621.x, URL: http://dx.doi.org/10.1111/j.1096-3642.2009.00621.
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
Oligoryzomys Bangs 1900
No full textOligoryzomys Bangs, 1900 Pygmy rice rats The pygmy rice rats are a speciose but poorly known group that is widely distributed throughout the Neotropical Realm, from southern México to Tierra del Fuego and to eastern Amazonia and the Mata Atlântica of coastal Brazil (Carleton and Musser, 1989; Emmons and Feer, 1997). Over this enormous range, member species may be common within habitats spanning lowland tropical forest to the high Andean puna grasslands or páramo above timberline. Often placed as a subgenus within Oryzomys by earlier workers, its generic status was solidified by Carleton and Musser (1989), who provide an emended diagnosis as well as a provisional list of species with generalized descriptions and geographic ranges. Their diagnosis includes, but is not limited to, the following traits: small body size; tail usually longer than head and body; six plantar tubercles, with hypothenar pad small and round; skull small but stout in appearance; rostrum relatively broad and stocky; interorbital region hourglass shaped with squared edges; braincase elongate, smooth, and flat, with foramen magnum directed posteriorly; zygomatic arches bowed laterally; jugal reduced or absent; zygomatic notches distinct; zygomatic plates broad, with the anterior edge reaching the nasolacrimal capsules; stapedial foramen large, posterior opening of alisphenoid canal large, squamosalalisphenoid groove and sphenofrontal foramen absent (derived cephalic arterial supply; pattern 2 of Voss, 1988; Carleton and Musser, 1989); incisors opisthodont, asulcate; molars brachydont, cuspidate, with three roots in uppers and two in lowers; first molars ovate, anteromedian flexus (id) shallow, anterolabial and anterolingual conules (ids) small, anteroloph and mesoloph (id) present; anterolabial cingulum well developed on lower third molar.Published as part of PATTON, JAMES L., DA SILVA, MARIA NAZARETH F. & MALCOLM, JAY R., 2000, Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia, pp. 1-306 in Bulletin of the American Museum of Natural History 2000 (244) on page 132, DOI: 10.1206/0003-0090(2000)2442.0.CO;2, http://zenodo.org/record/534731
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
[Lizzie R. Pennell].
No full textPostage stamp portrait of a woman with bangs wearing a multi-strand necklace, affixed to visiting card with ms. signature: Lizzie R. Pennell.; Title from ms. signature on mount
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