119,490 research outputs found
Les éducateurs de l'Espagne contemporaine
No full textBibliografía: p. [IX]-XXIII(tomo I)Signaturizados numéricamenteAntepsLas 2 h. de l m. son un Retr. de Giner de los Ríos(tomo I) y retrato de Juli n Sanz del Río(tomo II)Contiene : I. Les Krausistes--II. Lettres inedites de D. Juli n Sanz del Río / publiées par Manuel de la Revilla ; traduction précédée d'une introduction historique et de'une biographie de Sanz del Rí
Elena Vezzadini, Iris Seri-Hersch, Lucie Revilla, Anaël Poussier et Mahassin Abdul Jalil (dir.) (2019) - Ordinary Sudan, 1504- 2019
No full textReviewed: Elena Vezzadini, Iris Seri-Hersch, Lucie Revilla, Anaël Poussier and Mahassin Abdul Jalil (eds.), Ordinary Sudan, 1504-2019. From Social History to Politics from Below, vol. 1 et 2, Berlin/Boston, De Gruyter Oldenbourg, Africa in Global History, 2023, 22 + 671 p.Recensé : Elena Vezzadini, Iris Seri-Hersch, Lucie Revilla, Anaël Poussier et Mahassin Abdul Jalil (dir.), Ordinary Sudan, 1504-2019. From Social History to Politics from Below, vol. 1 et 2, Berlin/Boston, De Gruyter Oldenbourg, Africa in Global History, 2023, 22 + 671 p
Effect of heat treatment on the microstructure and pitting corrosion behavior of 316L stainless steel fabricated by different additive manufacturing methods (L-PBF versus L-DED): Comparative investigation exploring the role of microstructural features on passivity
No full textThis work explores the relation between microstructural features and pitting corrosion resistance of additively manufactured 316 L stainless steel. Specimens fabricated using two different laser-based manufacturing processes (L-PBF and L-DED) were studied in as-built and heat-treated conditions following a comparative approach. Potentiodynamic polarization tests and corrosion morphology analysis served to evaluate their corrosion resistance and passive behavior. This work shows that, contrary to previous reports, the absence of MnS inclusions or presence of the microsegregation structure are not the main factors enhancing passivity of these materials. Instead, dislocation density was the only microstructural feature matching the trend in their passivity behavior
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
The concept of plasma cleaning in glow discharge spectrometry
No full textMolchan, I.S., Thompson, G.E., Skeldon, P., Trigoulet, N., Chapon, P., Tempez, A., Malherbe, J., Lobo Revilla, L., Bordel, N., Belenguer, P., Nelis, T., Zahri, A., Therese, L., Guillot, P., Ganciu, M., Michler, J., Hohl, M
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
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
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
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
Dislocation driven evolution of passivity in L-PBF 316 L: Unveiling the impact of thermal exposure
No full textThis study investigates the influence of subcritical thermal exposure on the passivation behaviour of laser powder bed fusion (L-PBF) processed 316 L stainless steel, with a focus on dislocation-driven mechanisms under industrially relevant conditions. A novel approach was taken by systematically examining the evolution of corrosion resistance as a function of both residual stress and dislocation density across a temperature range of 100–400 °C. The methodology integrated electrochemical characterisation with microstructural and crystallographic analysis. Results revealed a progressive decline in passive film stability up to 300 °C, corresponding with reduced dislocation density and stress relaxation. However, at 400 °C, passive film performance improved significantly despite further residual stress reduction. This behaviour was linked to the start of microstructural recovery, dissolution of subgrain boundaries, and a redistribution of geometrically necessary dislocations
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