125,017 research outputs found
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
La rencontre des temps anciens et nouveau dans Les 1001 Années de la Nostalgie de Rachid Boujedra
No full textGraczyk Bozenna. La rencontre des temps anciens et nouveau dans Les 1001 Années de la Nostalgie de Rachid Boujedra. In: Le temps et l'histoire chez l'écrivain : Afrique du Nord, Afrique noire, Antilles. Nice : Institut d'études et de recherches interethniques et interculturelles, 1986. pp. 29-48
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
VizieR Online Data Catalog: Detached eclipsing binaries with Gaia parallaxes (Graczyk+, 2019)
No full textVizieR On-line Data Catalog: J/ApJ/872/85. Originally published in: 2019ApJ...872...85GWe extended the sample of 35 eclipsing binaries compiled by Graczyk+ (2017ApJ...837....7G) by searching for detached systems in the literature suitable for a precise distance determination. Our sample contains 81 systems (51 on the northern hemisphere and 30 on the southern one). Their basic parameters are presented in Table 1. We used Tycho-2 BT and VT photometry (Hog+ 2000, I/259) downloaded from Vizier. The Tycho photometry was subsequently transformed onto the Johnson system using the method outlined by Bessell (2000PASP..112..961B). Whenever possible we used Johnson B, V photometry from the compilation of Mermilliod (1997, II/168) and also absolute optical photometry from literature sources. (4 data files)
Les trains, 1ère classe, 2ème classe..., de la 6ème à la 4ème. Typologie des textes et des discours
No full textBrassart Dominique-Guy, Cauterman M. M., Darras Francine, Delcambre Isabelle, Graczyk B. Les trains, 1ère classe, 2ème classe..., de la 6ème à la 4ème. Typologie des textes et des discours. In: Repères pour la rénovation de l'enseignement du français, n°69, 1986. Communiquer et expliquer au collège, sous la direction de Jean-François Halté. pp. 87-105
"La première cigarette, tu m'expliques !"
No full textDelcambre Isabelle, Brassart Dominique-Guy, Darras Francine, Graczyk B., Gruwez Claudine, Cauterman M. M., Constant Marylène. "La première cigarette, tu m'expliques !". In: Repères pour la rénovation de l'enseignement du français, n°72, 1987. Discours explicatifs en classe : quand? comment? pourquoi? sous la direction de Jean-François Halté. pp. 81-92
Oribatid mite species numbers increase, densities decline and parthenogenetic species suffer during bog degradation
No full textThis study compared the oribatid mites in two natural and four industrially exploited bogs. One natural bog (Zakret, Z) was located in northeastern Poland and the other one (Toporowy Staw Nizni, TSN), in southern Poland. The four exploited bogs were also located in southern Poland and can be ranked from least to most degraded as follows: Lysa Puscizna (LP), Baligowka (B), Puscizna Mala (PM) and Kaczmarka (K). In the natural bogs, the water pH was higher than in the degraded ones, but other parameters were lower (conductivity, colour value, oxygen demand, and concentration of chlorides). In the natural bogs, the Oribatida were highly abundant (average density was 169,100 ind./m(2)), but with low species diversity and one dominating species. In bog Z the most abundant was Limnozetes foveolatus that had dominance of 75 % and in bog TSN, located at higher altitude, Trimalaconothrus maior dominated (73 %). In two degraded bogs that had still good water conditions (LP and B) the oribatid communities resembled those from the natural bogs; in LP the most abundant species was Hydrozetes lacustris and in bog B, L. foveolatus. In contrast, in two more degraded bogs (PM and K) the abundance of mites was lower (average density was 17,850 ind./m(2)), species diversity of the Oribatida was higher, and no species achieved a high dominance like in the natural bogs. Additionally, in more degraded bogs the abundance of parthenogenetic species was lower than in the natural bogs
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
ON THE EVOLUTIONARY AND PULSATION MASS OF CLASSICAL CEPHEIDS. III. THE CASE OF THE ECLIPSING BINARY CEPHEID CEP0227 IN THE LARGE MAGELLANIC CLOUD
No full textWe present a new Bayesian approach to constrain the intrinsic parameters (stellar mass and age) of the eclipsing binary system-CEP0227-in the Large Magellanic Cloud (LMC). We computed several sets of evolutionary models covering a broad range in chemical compositions and in stellar mass. Independent sets of models were also constructed either by neglecting or by including a moderate convective core overshooting (beta(ov) = 0.2) during central hydrogen-burning phases. Sets of models were also constructed either by neglecting or by assuming a canonical (eta = 0.4, 0.8) or an enhanced (eta = 4) mass-loss rate. The most probable solutions were computed in three different planes: luminosity-temperature, mass-radius, and gravity-temperature. By using the Bayes factor, we found that the most probable solutions were obtained in the gravity-temperature plane with a Gaussian mass prior distribution. The evolutionary models constructed by assuming a moderate convective core overshooting (beta(ov) = 0.2) and a canonical mass-loss rate (eta = 0.4) give stellar masses for the primary (Cepheid)-M = 4.14(-0.05)(+0.04) M-circle dot-and for the secondary-M = 4.15+(0.04)(-0.05) M-circle dot-that agree at the 1% level with dynamical measurements. Moreover, we found ages for the two components and for the combined system-t = 151(-3)(+4) Myr-that agree at the 5% level. The solutions based on evolutionary models that neglect the mass loss attain similar parameters, while those ones based on models that either account for an enhanced mass loss or neglect convective core overshooting have lower Bayes factors and larger confidence intervals. The dependence on the mass-loss rate might be the consequence of the crude approximation we use to mimic this phenomenon. By using the isochrone of the most probable solution and a Gaussian prior on the LMC distance, we found a true distance modulus-18.53(-0.02)(+0.02) mag-and a reddening value-E(B - V) = 0.142+(+0.005)(-0.010) mag-that agree quite well with similar estimates in the literature
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
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