124,771 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
18F-FDG PET/CT detected a septic focus corresponding to a small periurethral abscess in a patient with bacteremia due to Enterococcus faecium
No full textResponse to treatment in a patient with gouty arthritis and tophi evaluated by fluorine 18 fluorodeoxyglucose positron emission tomography/computed tomography.
No full textOpen Web Mapping (webGIS) for the Description and Historical Analysis of the Exhibition areas of the Botanical Garden of Naples. Pp. 23-35. In: Cardone B., Di Martino F., Sessa S. (a cura di).
No full textThe Botanical Garden of Naples is one of the most prominent botanical gardens in Europe for the relevance of its collections and the number of cultivated plant species. The decree of foundation of the garden was signed by Giuseppe Bonaparte in 1807, during the French Kingdom of Naples. Michele Tenore was the first Director from 1810 to 1860. During his 50 years of direction he increased the collections, bringing the number of cultivated species to about 9,000 and organizing the first exhibition areas according to the criteria of the time (Menale & De Luca 2008-2009). Nowadays, the garden covers an area of twelve hectares, which include open exhibition areas arranged in ethnobotanical, ecological and systematic criteria and greenhouses devoted to the cultivation of tropical and sub-tropical plants; the cultivated species are approx. 15.000.
The Garden from its foundation to the present time has broadened its mission to include research, conservation, teaching and public display of plants through the construction of new buildings, such as greenhouses, or increasing the varieties of collections .
The employment of GIS methodologies allows to clearly demonstrate the evolution of botanical garden since its establishment. GIS is a set of tools for capturing, storing, extracting, transforming, and displaying real-world spatial data (Burrough 1986). GIS can analyze the spatial and temporal change of a territory or of different phenomena (Aronoff 1989). A recent evolution of GIS is the Open Web Mapping (Web GIS), a process of designing, implementing, generating, and delivering maps on the World Wide Web and its products (Dizaji 2016). Existing Internet solutions for disseminating spatial data, such as geoportals or Web GIS, essentially provide functionality for searching, mapping, publishing and limited querying (Frehner & Brandli 2006). The increasing popularity of geo-browsers as tools for displaying geographically referenced information provides insights and opportunities for those who, not being specialists in GIS, want to take advantage from the exploration and the communication power offered by these software products (Notarangelo & Alga 2011).
In this study, we describe a Web GIS application for the Botanical Garden of Naples. This technology has made it possible to manage and visualize , since 1818, historical cartography of the garden so to compare the past garden with the actual. Moreover, it makes possible to download the descriptive texts of the areas and the botanical data on each species. The cartography is georeferenced and overlapped to the Open Street Maps (Mordechai & Weber 2008), and a geolocation feature allows visitors to navigate through the exhibition areas, or to move on historic cartography to observe the changes that took place over time
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
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
Diagnostic Accuracy of PET with 18F-Fluciclovine ([18F]FACBC) in Detecting High-Grade Gliomas: A Systematic Review and Meta-Analysis
No full textBackground: 18F-Fluciclovine ([18F]FACBC) has been recently proposed as a synthetic radiolabeled amino acid for positron emission tomography (PET) imaging in patients with brain neoplasms. Our aim is to evaluate the diagnostic performance of [18F]FACBC PET in high-grade glioma (HGG) patients, taking into account the literature data. Methods: A comprehensive literature search was performed. We included original articles evaluating [18F]FACBC PET in the detection of HGG before therapy and for the suspicion of tumor recurrence. Pooled sensitivity, specificity, positive and negative likelihood ratios (LR+ and LR-), and diagnostic odds ratios (DOR), including 95% confidence intervals (95% CI), were measured. Statistical heterogeneity and publication bias were also assessed. Results: ten studies were included in the review and eight in the meta-analysis (113 patients). Regarding the identification of HGG, the sensitivity of [18F]FACBC PET ranged between 85.7% and 100%, with a pooled estimate of 92.9% (95% CI: 84.4-96.9%), while the specificity ranged from 50% to 100%, with a pooled estimate of 70.7% (95% CI: 47.5-86.5%). The pooled LR+, LR-, and DOR of [18F]FACBC PET were 2.5, 0.14, and 37, respectively. No significant statistical heterogeneity or publication bias were found. Conclusions: evidence-based data demonstrate the good diagnostic accuracy of [18F]FACBC PET for HGG detection. Due to the still limited data, further studies are warranted to confirm the promising role of [18F]FACBC PET in this context
- …
