1,724,192 research outputs found

    Ivan Galkin 1930–2010

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    Nekrolog Ivan Galkin 1930–201

    Galkin, Joseph J. interview

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    Oral History interview of Joseph Galkin. Interview conducted by Cannon, Joan at Village on the Green-- Longwood, FL

    Adolfo Alejandro Galkin, flauta (Colombia) y Juan Pablo Gutierrez, guitarra (Colombia)

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    Concierto interpretado por el flautista Adolfo Alejandro Galkin y el guitarrista Juan Pablo González. En este recital se interpretaron obras de: Jacques Ibert, Amos Coulanges, Heitor Villalobos, Francisco González y Astor Piazzolla

    Energy Security and Portfolio Diversification: Conventional and Novel Perspectives

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    Despite the recent expansion of the scope, the main pillars of energy security remain physical supply and price components. This paper highlights the novel developments of this notion, including the exporters’ perspective, relevant challenges, indicators, and policies. Furthermore, we apply the portfolio theory approach to five Gulf Cooperation Council countries to construct portfolios representing the trade-offs between maximizing returns (oil export growth or export prices) and minimizing risks (standard deviation of return variables). We assess portfolios’ resilience to external demand and logistical shocks by running several disruptive scenarios. We find that oil exporters adopt a balanced approach to the risks associated with export volume growth and pricing, which is different from some major oil importers that prioritize either the physical supply or price stability. Simulation scenarios of increasing oil exports to China would have a significant impact mainly on Saudi Arabia and the United Arab Emirates (UAE), but not on the others, while scenarios of reduced oil exports to the United States would impact mainly Saudi Arabia and Kuwait. A blockade of the Malacca Strait would reduce export volumes and increase portfolio risks for all five economies, with Kuwait and Oman most affected

    Calantica moskalevi Zevina and Galkin 1989

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    Calantica moskalevi Zevina and Galkin, 1989 Figures 2, 3, 8–10 Calantica moskalevi Zevina and Galkin, 1989: 134, Figs 1 a–h, 2 a–e. Material examined. MBARI ROV Tiburon sample nos T 1009 A 2 and R 3, (a clump of ten mature and one juvenile specimen, respectively) and MBARI ROV Tiburon sample no. T 1010 R 7, fragments of 1 specimen; Axial seamount (45 º 56 ' N, 130 º 02' W), SW and NE caldera wall. Depths of 1477 m and 1434 m, respectively: Deposition of topotypes from sample no. T 1009 A 2: First topotype, USNM cat. no. 1145900; second topotype, USNM cat. no. 1145901; third topotype, SIO BIC cat. no. C- 11193; topotype lot, SIO BIC cat. no. C- 11194 (Figs 8, 9). Diagnosis. With basic 13 capitular plates but unique in occasionally having second carinolatus (CL 2) on one or both sides, without subrostrum (SR). Description. Hermaphrodites with capitular armament of S-T surrounded by R-RL-L-CL-±CL 2 -C-SC, capitular height to 30 mm; peduncular length usually from about same as, to as much as twice, capitular height. Plates white, covered with transparent cuticle, cuticle becoming stained yellowish gold, eventually even becoming thinly encrusted with what appears to be ferromanganese oxides (Figs 8, 9). FIGURE 8. Calantica moskalevi Zevina and Galkin, 1989; first topotype (view from right and left sides respectively): Two of the ten mature individuals in the sample had carinolaterals (CL 2 s) and the one with a CL 2 on both sides was chosen as the first topotype. While the sides are virtually mirror images, it will be observed the left CL 2 is smaller than that on the right (see Fig. 7 for other combinations). Trophi (Fig. 10) with strong palps flanking bullate labrum, labral crest supporting row of numerous fine, sharp, contiguous teeth; mandible tridentoid, few well spaced spines between first and second teeth, comb of contiguous spines between third tooth and inferior angle; first maxilla with protuberant central portion of cutting edge supporting comb of closely-spaced spines separating upper field of short contiguous spines from lower field of long and short spines similar to those of inferior angle; second maxilla with typical notch between setose superior and inferior lobes. Cirri uniformly deployed along thorax (no hiatus between cirrus I and II), cirrus I with rami subequal in length, setation antenniform, remaining cirri ctenopod; intermediate articles of cirrus VI twice as high as wide (Fig. 10 E), each article supporting five strong and one weak pair of setae along inner margin, clump of four or five strong setae at distal corner of outer margin. Numbers of articles per anterior and posterior rami indicated below. FIGURE 9. Calantica moskalevi Zevina and Galkin, 1989; second and third topotypes: Of the ten mature specimens sampled two had carinolaterals (CL 2 s). The one having a CL 2 on both sides was designated the first topotype (Fig. 8). The other (upper and lower right), having a CL 2 on but one side (upper right), was designated the second topotype. The remaining eight lacked CL 2 s, and one (lower left, to same scale) was designated the third topotype. The remainder (not illustrated) constitute the topotype lot. Caudal appendages, while figured for a juvenile by Zevina and Galkin (1989, Fig. 2 e), apparently absent in adult. Penis robust, short, somewhat longer than pedicle of cirrus VI (Fig. 10 F), fully equipped with annulations, sensor setae and tuft of apical setae (therefore judged functionally hermaphroditic); apertural, complemental males not evident. Remarks. Gray (1825) proposed the genus Calantica, generalized members of which superficially resembled Scillaelepas Seguenza, 1876. They thereby fell in and out of synonymy, or were considered subgenera (Krüger 1940) until revised (Newman 1980). As noted in the above, the name of Zevina and Galkin’s form, when newly proposed, included a parenthetical question mark. This was probably because the two specimens were early juveniles and, since the juveniles of distantly related genera can be quite similar, the identification was deemed uncertain. The specimens (Fig. 7) had the usual 13 capitular plates (3 unpaired, 5 paired) which, taken alone, are diagnostic of both Scillaelepas and Calantica (Fig. 6). However, one of the two juveniles had an additional pair of lateral plates while the other had but one, supplementary lateral plates being known in Calantica but not Scillaelepas. Curiously, only one of the 10 adult specimens in the present sample (first topotype) has an additional pair of plates, while another (second topotype) has but one of the pair, and so situated in both as to be referable to as second carinolatera (CL 2; Figs 8, 9). The remainder were similar to C. studeri or, ignoring the smallness of the peduncular plates and the cuticle covering them, like Scillaelepas (Fig. 7, lower left). Whatever, the adult of Zevina and Galkin’s form is clearly a Calantica as presently defined, whether CL 2 is present or not.Published as part of Newman, William A. & Jones, William J., 2011, Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?, pp. 49-68 in Zootaxa 2789 on pages 57-58, DOI: 10.5281/zenodo.20250

    galkin: A new compilation of Milky Way rotation curve data

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    We present galkin, a novel compilation of kinematic measurements tracing the rotation curve of our Galaxy together with a tool to treat the data. The compilation is optimised to Galactocentric radii between 3 and 20 kpc and includes the kinematics of gas, stars and masers in a total of 2780 measurements carefully collected from almost four decades of literature. A simple, user-friendly tool is provided to select, treat and retrieve the full database. Keywords: Dark matter, Galaxy: kinematics and dynamic

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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
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