126,433 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
Treatment-resistant panic disorder
No full textA substantial number of patients with panic disorder and agoraphobia may remain symptomatic after standard treatment (including selective serotonin reuptake inhibitors, tricyclic antidepressants, benzodiazepines, or irreversible monamine oxidase inhibitors). In this review, recommendations for the treatment of patients with panic disorder and agoraphobia who do not respond to these drugs are provided. Nonresponse to drug treatment could be defined as a failure to achieve a 50% reduction on a standard rating scale after a minimum of 6 weeks of treatment in adequate dose. When initial treatments have failed, the medication should be changed to other standard treatments. In further attempts at treatment, drugs should be used that have shown promising results in preliminary studies, such as venlafaxine. Combination treatments may be used, such as the combination of an selective serotonin reuptake inhibitor and a benzodiazepine. Psychological treatments such as cognitive-behavioral therapy have to be considered in all patients, regardless whether they are nonresponders or not. According to existing studies, a combination of pharmacologic treatment with cognitive-behavioral therapy can be recommended
Aproximación analítica a la ecuación de Schrödinger con el potencial de Eckart.
No full textLa presente tesis está dedicada al estudio de las soluciones analíticas de la ecuación de Schrödinger con el potencial de Eckart. Las soluciones a los estados ligados de la ecuación de Schrödinger con el potencial de Eckart con término centrífugo son obtenidas mediante una aproximación a dicho término. Las funciones de onda normalizadas también son obtenidas. Es mostrado que dichas funciones pueden ser expresadas en términos de las funciones hipergeométricas 2F1 (a; b; c; z)
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
Bound states of the Dirac equation with position-dependent mass for the Eckart potential
No full textStudying with the asymptotic iteration method, we present approximate solutions of the Dirac equation for the Eckart potential in the case of position-dependent mass. The centrifugal term is approximated by an exponential form, and the relativistic energy spectrum and the normalized eigenfunctions are obtained explicitly
Keine Rückkehr ins „Paradise Lost“. Erwin Panofsky und die Universität Hamburg 1946 bis 1968
No full textEine wichtige Form des historischen Gedenkens ist seit dem 80. Jubiläum der Universität Hamburg vor zehn Jahren die Benennung der restaurierten Hörsäle im universitären Hauptgebäude, der „ESA 1“, nach den Opfern von Rassismus, Intoleranz und Inhumanität im „Dritten Reich“.
Auf die beiden größten, A und B, die 1999 die Namen des Philosophen Ernst Cassirer und der Germanistin Agathe Lasch erhalten hatten, folgten im Jahr darauf C (Erwin Panofsky), im April 2005 M (Emil Artin) und im Juni 2006 J (Magdalene Schoch). Auskunft über die Veranstaltungen zur jeweiligen Namensgebung, vor allem zu deren Begründung, geben die aus diesem Anlass gehaltenen Reden, die in der „Neuen Folge“ der „Hamburger Universitätsreden“ nachzulesen sind – bislang allerdings mit Ausnahme derjenigen, die anlässlich der Benennung des Hörsaals C gehalten wurden.
Diese Lücke wird mit dem vorliegenden Band geschlossen. Die Reden wurden von den Herausgebern umfassend annotiert und um einen ausführlichen Anhang ergänzt.Since the 80th anniversary of the University of Hamburg in 1999, an important form of historical remembrance has been the naming of the restored lecture halls in the main university building, the "ESA 1", after the victims of racism, intolerance and inhumanity in the "Third Reich".
The two largest, halls A and B,which were given the names of the philosopher Ernst Cassirer and the German scholar Agathe Lasch in 1999, were followed the following year by C (Erwin Panofsky), M (Emil Artin) in April 2005 and J (Magdalene Schoch) in June 2006. The speeches given on this occasion, which can be read in the "Neue Folge" of the "Hamburger Universitätsreden" (Hamburg University Speeches) provide information on the events for the respective naming of the events, especially on their reasons for naming them, with the exception of the speeches given at the time when Lecture Hall C was named. The speeches were extensively annotated by the editors and supplemented with a detailed appendix
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
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