124,873 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
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
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
COMPARISON OF BRUCELLA MELITENSIS AND BRUCELLA OVIS BY PROTEOMIC APPROACH
No full textCOMPARISON OF BRUCELLA MELITENSIS AND BRUCELLA
OVIS BY PROTEOMIC APPROACH
In this work the proteome of two Brucella species, B. melitensis type strain 16M and B. ovis
REO198, showing different phenotypes, pathophysiology and host-pathogen interactions were
compared, in order to identify proteins that may correlate to different phenotypic characteristics
and to search virulence or immunogenic factors for a better characterization of Brucella
pathogenicity
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
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
Sequence-specific modification of a beta-thalassemia locus by small DNA fragments in human erythroid progenitor cells.
No full textGene therapy has been proposed as a definitive
cure for ββ-thalassemia. We applied a gene targeting
approach, based on the introduction of small DNA
fragments (SDF) into erythroid progenitor cells, to
specifically modify the ββ-globin gene sequence at
codon 39. The strategy was first tested in normal
individuals by delivering mutant SDF that were
able to produce the ββ39 (C→→T) mutation. Secondly,
wild-type SDF were electroporated into target cells
of ββ39/ββ39. ββ-thalassemic patients to correct the
endogenous mutation. In both cases, gene modification
was assayed by allele-specific polymerase
chain reaction of DNA and mRNA, by restriction
fragment length polymorphism analysis and by
direct sequencing
Sequence-specific modification of the beta-globin locus by small DNA fragments in human erythroid progenitor cells
No full text- …
