343,611 research outputs found
An index of dissimilarity among time series: An application to the inflation rates of EU countries
No full textGoing 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
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
Les biblioteques universitàries i el suport a la recerca
No full textThe European Higher Education Area and the European Research Area are currently two key objectives for university learning, teaching and research in all European universities. University libraries must meet the challenges by offering the best library services to the academic community. In drafting the second strategic plan, Rebiun (Network of University Libraries) gathered comments and suggestions from professionals in Spanish university libraries. This article presents the reflections and suggestions contributed by the author regarding the support services that university libraries could offer for university research.L'espai europeu d'educació superior i l'espai europeu d'investigació són actualment dos objectius clau per a l'aprenentatge, la docència i la recerca de totes les universitats europees. Les biblioteques universitàries han de contribuir a aquests reptes, oferint els millors serveis bibliotecaris a la comunitat acadèmica. En la fase d'elaboració del seu segon Pla estratègic, la REBIUN (Red de Bibliotecas Universtarias) va recollir reflexions i suggeriments de diferents professionals de les biblioteques universitàries de l'Estat espanyol. En l¿article següent es presenten les reflexions i els suggeriments aportats per l'autora sobre el suport que les biblioteques universitàries poden oferir a la recerca universitària
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
Letter from Carl Hayden to L. L. Ferrall, Postmaster at Grand Canyon
No full textLetter from Carl Hayden to L. L. Ferrall on the favorable conditions for creating a national park and the prospect of the United States entering WW I
The synthesis of monodisperse alkanes with long chains
No full textThis thesis discusses reasons for the interest in monodisperse long chain alkanes and describes attempts, past and present, to synthesise such molecules. Chapter 1 discusses why the synthesis of such molecules are important and the objectives of this project. Chapter 2 reviews the methods previous groups have devised to prepare pure samples of long chain alkanes. In particular, work carried out by Whiting et al. at Bristol, whose scheme formed the basis of the early work in Durham. Chapter 3 describes the work in Durham and improvements which were made to Whiting's method, allowing the synthesis of longer chain lengths and greater quantities of materials to be achieved. Chapter 4 provides a summary of the practical work carried out by the author. Chapter 5 gives experimental details of the work described in Chapter 4
La Scala de Contemplació, de Fra Antoni Canals, i el De XV gradibus contemplationis o Viridiarium Ecclesiae
No full textA partir de les paraules de Roig i Gironella i de Robles sobre l' originalitat de la Scala de Contemplació d' Antoni Canals, l' autor comprova factualment la dependència total que manté aquest text amb el tractat llatí pseudobonaventurià contingut al ms. París, Mazarine 961, mitjançant la confrontació dels pròlegs, dels epílegs i d' alguns capítols.On the basis of Roig i Gironella and Robles 'words on the originality of Antoni Canals' Scala de contemplació, the author demonstrates factually this text's dependence on the pseudo-Bonaventurian Latin treaty to be found in ms. Paris, Mazarine 961. He does so by comparing the prologues, epilogues and some chapters
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