128,420 research outputs found
Statistisch-Topographische Samlungen Zur Genaueren Kentnis Aller Das Churfürstenthum Braunschweig-Lüneburg Ausmachenden Provinzen / [C. B. Scharf]
No full textDer Verfasser ist Unterzeichner des Vorworts.Die Rückseite des Titelblatts ist unbedrucktSignaturformel: [4], A-H8, I4, A-Q8, R2, A-H8, I4 [-I4]1. Auflage unter dem Titel: Scharf, Christoph B.: Der politische Staat des Kurfürstenthums Braunschweig-Lüneburg und der dazu gehör. HerzogthümerVorlageform der Veröffentlichungsangabe: Auf Kosten des Verfassers. Bremen 1791. gedruckt bey Diedr. Meier, des löbl. Gymn. Buchdr
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
Introduction and tectonic framework
No full textThe extraordinary outcrop conditions provide a unique opportunity to study the geology and tectonics of the Oman Mountains, which record a geological history of more than 800 million years. We provide a summary of the geological evolution of the Oman Mountains
with the emphasis on the Jabal Akhdar and Saih Hatat domes. This Memoir comprises seven chapters. This first chapter summarizes the former studies and the tectonic framework. This is followed by a comprehensive description of all geological formations/rock units (Scharf et al.
2021a, Chapter 2, this Memoir) including the famous Semail Ophiolite, the fault and fold pattern (Scharf et al. 2021b, Chapter 3, this Memoir) and the overall structure (Scharf et al. 2021c, Chapter 4, this Memoir). Chapter 5 (Scharf et al. 2021d) explains the varied tectonic evolution of
the study area, ranging from the Neoproterozoic until present, while Chapter 6 (Scharf et al. 2021e) contains the conclusions and a catalogue of open questions. Finally, Chapter 7 (Scharf et al. 2021f) provides two over-sized geological maps (1 : 250 000 version available online) and a
correlation chart, providing an overview of the geological units/formations. This volume is of interest for all geoscientists, geoscience students and professionals studying the Oman Mountains on the surface as well as in the subsurface because it represents a comprehensive and detailed reference
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
Récupération après adaptation induite de sonie
No full textScharf B., Botte M.-C., Canévet G. Récupération après adaptation induite de sonie. In: L'année psychologique. 1983 vol. 83, n°1. pp. 9-24
Adaptive detection of a signal known only to lie on a line in a known subspace, when primary and secondary data are partially homogeneous
No full textThis paper deals with the problem of detecting a signal, known only to lie on a line in a subspace, in the presence
of unknown noise, using multiple snapshots in the primary data. To account for uncertainties about a signal's signature, we assume that the steering vector belongs to a known linear subspace. Furthermore, we consider the partially homogeneous case, for which the covariance matrix of the primary and the secondary data have the same structure but possibly different levels. This provides an extension to the framework considered by Bose and Steinhardt. The natural invariances of the detection problem are studied, which leads to the derivation of the maximal invariant. Then, a detector is proposed that proceeds in two steps. First, assuming that the noise covariance matrix is known, the generalized-likelihood ratio test (GLRT) is formulated. Then, the noise covariance matrix is replaced by its sample estimate based on the secondary data to yield the final detector. The latter is compared with a similar detector that assumes the steering vector to be known
FIGURE 3 in Sansevieria pfennigii (Ruscaceae, Asparagales): Confirmation of existence, emendation of description, and tentative threat assessment
No full textFIGURE 3. Habitat and map of occurrence. a: S. canaliculata in its natural habitat, Lindi Region. Note shiny green foliage and pungent leaf apices. b: S. pfennigii in its natural habitat, Lindi Region. c: Map of E Tanzania with the location of the S. pfennigii population studied (red dot). Photos U. Scharf, map from © OpenStreetMap contributors, download 4.1.2021 from openstreetmap.org, modified.Published as part of Scharf, Uwe & Burkart, Michael, 2021, Sansevieria pfennigii (Ruscaceae, Asparagales): Confirmation of existence, emendation of description, and tentative threat assessment, pp. 1-8 in Phytotaxa 483 (1) on page 5, DOI: 10.11646/phytotaxa.483.1.1, http://zenodo.org/record/541960
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
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