125,819 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
A Comparison of Alternative Circle Hook (Kahle Hook) and J-Style Hook Performance in Experimental Pelagic Longline Fishery in Turkey
No full textIn recent years, circle hooks have been encouraged as an alternative to traditional J-hooks in pelagic longline fisheries to minimize by-catch mortality and injury to sea turtles and other marine wildlife. Prior to this study, circle hooks had not been used by domestic commercial pelagic longliners in Turkey. The main objective of the study was to evaluate the efficiency of kahle hook comparing with J-style hook baited with sardine (Sardina pilchardus) in pelagic longline fishery in the Aegean coast of Turkey (Kusadasi Bay). We used conventional J-style hooks (Mustad 2315DT-4/0) and kahle hooks (Eagle Claw 142A-6/0) for each fishing operation and compared catch rates, catch compositions of target and non-target species. The relative performance of kahle and traditional J-style hooks was tested during 22 valid pelagic longline fishing operations between August 2010 and December 2012. A total of 2200 hooks were used equally among kahle and J-style hooks consecutively. Captured fish were identified, total and fork lengths were measured, weighed, the time of haul back, and hook type as well as by-catch fish were recorded. A total of 78 fish were caught belonging to 13 species during the samplings. The overall CPUE was 4.73 fishes per 100 hooks for kahle hooks and 2.46 fishes for J-style hooks. For the CPUE of all fishes, the difference was statistically significant (Z = -1.977; P<0.05), in favour of the kahle hook being almost two times greater than the J-style hook. Likewise CPUE was 17007.69 g per 100 hooks for kahle style hooks and 4807.27 g for J-style hooks (Z = -1.997; P<0.05). While no difference was found between two hook models on by-catch species, kahle hooks were more efficient in comparison to J hooks on discard species. Swordfish (Xiphias gladius) had the highest CPUE (2.82) among all species for kahle hooks followed by silver scabbard fish (Lepidopus caudatus), 0.64. For J-style hooks, silver scabbard fish catch had the highest CPUE (0.64) followed by swordfish (0.55).Ege University Underwater Research and Application Center (SAUM Project)Ege University [2011/SAUM/003]This study was funded by Ege University Underwater Research and Application Center (SAUM Project no: 2011/SAUM/003). The authors are also grateful to B. Ruzgar and O. Ergun for their logisticalsupports. We also thank C.Pelister, B. Maktay, H. Kaykac, B. Guland O. Soykanfor their help during the trips
Paul E. Kahle y Federico Pérez Castro: los orígenes de la Escuela de Crítica Textual Bíblica de Madrid
No full text[EN] We have frequently been asked about the origins of the Madrid School of Biblical Text Criticism. We have limited the content of this paper to Masoretic studies. Research into the files of the former Instituto Arias Montano of the CSIC disclosed a series of unedited letters between Professors Kahle and Pérez Castro; a paper by F. Pérez Castro and F. Cantera Burgos on “Prof. Paul E. Kahle y los estudios de crítica textual bíblica en España,” and a description by F. Pérez Castro of the first project to edit the Cairo Codex of the Prophets. Through these materials we can trace the main steps of the relationship between these two relevant scholars and the role that such a relationship played in the origin and late development of these studies in Madrid.[ES] Paul E. Kahle y Federico Pérez Castro: los orígenes de la escuela de crítica textual bíblica de Madrid.— A menudo se nos ha preguntado por los orígenes de la escuela de crítica textual bíblica de Madrid. Hemos limitado el contenido de este artículo a los estudios masoréticos. Investigando en los archivos del antiguo Instituto Arias Montano del CSIC hemos encontrado una colección de cartas inéditas entre los Profesores Kahle y Pérez Castro; un artículo escrito por F. Pérez Castro y F. Cantera Burgos titulado «Prof. Paul E. Kahle y los estudios de crítica textual bíblica en España», y la descripción hecha por Pérez Castro del primer proyecto para editar el Códice de Profetas de El Cairo. Gracias a estos testimonios hemos podido documentar las principales fases de la relación entre estos dos eminentes profesores y el papel que tal relación desempeñó en el origen y posterior desarrollo de estos estudios en Madrid.Peer reviewe
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
Das lokale Emplacement von alltäglich geteilter Solidarität.
No full textKahle P, Corsten M. Das lokale Emplacement von alltäglich geteilter Solidarität. . In: Blättel-Mink B, ed. Gesellschaft unter Spannung. Verhandlungen des 40. Kongresses der Deutschen Gesellschaft für Soziologie 2020. Deutsche Gesellschaft für Soziologie; 2021
Monitoring α-synuclein multimerization in vivo
No full textThe pathophysiology of Parkinson’s disease is characterized by the abnormal accumulation of α-synuclein (α-Syn), eventually resulting in the formation of Lewy bodies and neurites in surviving neurons in the brain. Although α-Syn aggregation has been extensively studied in vitro, there is limited in vivo knowledge on α-Syn aggregation. Here, we used the powerful genetics of Drosophila melanogaster and developed an in vivo assay to monitor α-Syn accumulation by using a bimolecular fluorescence complementation assay. We found that both genetic and pharmacologic manipulations affected α-Syn accumulation. Interestingly, we also found that alterations in the cellular protein degradation mechanisms strongly influenced α-Syn accumulation. Administration of compounds identified as risk factors for Parkinson’s disease, such as rotenone or heavy metal ions, had only mild or even no impact on α-Syn accumulation in vivo. Finally, we show that increasing phosphorylation of α-Syn at serine 129 enhances the accumulation and toxicity of α-Syn. Altogether, our study establishes a novel model to study α-Syn accumulation and illustrates the complexity of manipulating proteostasis in vivo.—Prasad, V., Wasser, Y., Hans, F., Goswami, A., Katona, I., Outeiro, T. F., Kahle, P. J., Schulz, J. B., Voigt, A. Monitoring α-synuclein multimerization in vivo
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
The geometry of Gaussoids
No full textA gaussoid is a combinatorial structure that encodes independence in probability and statistics, just like matroids encode independence in linear algebra. The gaussoid axioms of Lněnička and Matúš are equivalent to compatibility with certain quadratic relations among principal and almost-principal minors of a symmetric matrix. We develop the geometric theory of gaussoids, based on the Lagrangian Grassmannian and its symmetries. We introduce oriented gaussoids and valuated gaussoids, thus connecting to real and tropical geometry. We classify small realizable and non-realizable gaussoids. Positive gaussoids are as nice as positroids: They are all realizable via graphical models
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