1,720,991 research outputs found
Neuropsychologische Demenzdiagnostik: Umfrage zum klinischen Standardvorgehen im Rahmen des Deutschen Netzwerks Gedächtnisambulanzen e. V.
No full text<jats:p> Zusammenfassung: Gedächtnisambulanzen sind spezialisierte und multidisziplinäre Einrichtungen zur (Früh-)Erkennung demenzieller Erkrankungen, welche zwar unterschiedliche institutionelle Rahmenbedingungen und inhaltliche Schwerpunkte aufweisen, die aber auch viele Gemeinsamkeiten haben in Bezug auf diagnostische Abläufe und therapeutisches Handeln. Für die neuropsychologische Diagnostik als Kernelement der Demenzdiagnostik liegen zahlreiche etablierte Testverfahren vor, einheitliche Standards für die Auswahl und Anwendung geeigneter Verfahren wurden jedoch in Deutschland bisher nicht formuliert. Eine Onlineumfrage unter 28 Zentren des Deutschen Netzwerks Gedächtnisambulanzen e. V. (DNG) stellt den aktuellen Stand der klinischen Praxis in der neuropsychologischen Demenzdiagnostik in diesen Gedächtnisambulanzen dar und zeigt mittels Empfehlungen Ansätze zu einer möglichen Harmonisierung im Vorgehen auf. </jats:p>
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Relevance of Minor Neuropsychological Deficits in Patients With Subjective Cognitive Decline
No full textBackground and Objectives: To determine the relevance of minor neuropsychological deficits (MNPD) in patients with subjective cognitive decline (SCD) with regard to CSF levels of Alzheimer’s disease (AD) biomarkers, cognitive decline and clinical progression to mild cognitive impairment (MCI). Methods: This study included clinical SCD patients and SCD free, healthy control (HC) participants with available baseline CSF and/or longitudinal cognitive data from the observational DZNE Longitudinal Cognitive Impairment and Dementia (DELCODE) study. We defined MNPD as a performance of at least 0.5SD below the mean on a demographically adjusted total score derived from the Consortium to Establish a Registry for Alzheimer’s Disease Neuropsychological Assessment Battery. We compared SCD patients with MNPD and those without MNPD with regard to CSF amyloid-β (Aβ)42/Aβ40, phosphorylated tau (p-tau 181 ) , total tau and Aβ42/p-tau 181 levels, longitudinal cognitive composite trajectories and risk of clinical progression to incident MCI (follow-up M ± SD : 40.6±23.7 months). Additionally, we explored group differences between SCD and HC in those without MNPD. Results: In our sample (N = 672, mean age: 70.7±5.9 years, 50% female), SCD patients with MNPD (n = 55, 12.5% of SCD group) showed significantly more abnormal CSF biomarker levels, increased cognitive decline and a higher risk of progression to incident MCI (HR: 4.07, 95%CI: 2.46-6.74) compared to SCD patients without MNPD (n = 384). MNPD had a positive predictive value of 57.0% (95%CI: 38.5-75.4) and a negative predictive value of 86.0% (95%CI: 81.9-90.1) for the progression of SCD to MCI within three years. SCD patients without MNPD showed increased cognitive decline and a higher risk of incident MCI compared to HC participants without MNPD (n = 215; HR: 4.09, 95%CI: 2.07-8.09), while AD biomarker levels did not differ significantly between these groups. Discussion: Our results suggest that MNPD are a risk factor for AD related clinical progression in cognitively normal patients seeking medical counseling due to SCD. As such, the assessment of MNPD could be useful for individual clinical prediction and for AD risk stratification in clinical trials. However, SCD remains a risk factor for future cognitive decline even in the absence of MNPD
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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