1,720,956 research outputs found
The Psychometric Properties of the Figure-Of Walk Test in People With Parkinson's Disease
No full textGulsen, Cagri/0000-0001-5830-438X; Erkoc Ataoglu, Esra/0000-0001-5465-6089Purpose To investigate: (1) the interrater, and test-retest reliability of the figure-of-eight walk test (F8WT) in people with Parkinson's disease (PwPD); (2) the minimum detectable change in the F8WT times; (3) the concurrent and known-groups validity of the F8WT times; and (4) the cut-off times that best discriminate PwPD from healthy people and fallers from non-fallers with PD. Methods This was a cross-sectional study. Forty-three PwPD and 34 healthy people were recruited. The F8WT was performed along with the timed up and go test, 10 m walk test, Berg Balance Scale, Activities-Specific Balance Confidence Scale, Unified Parkinson's disease Rating Scale, and Hoehn and Yahr Scale. Results The F8WT showed good interrater and test-retest reliability (ICC = 0.964-0.978 and ICC = 0.905-0.920, respectively). The MDC was 2.77 s. The F8WT was correlated with other outcome measures. Significant differences in the F8WT times were found between PwPD and healthy people and between fallers and non-fallers with PD (p < 0.001 and p < 0.001, respectively). The cut-off times of 8.43 s best discriminated PwPD from healthy people, while 11.19 s best discriminated fallers from non-fallers with PD. Conclusions The F8WT is a reliable, valid, and easy-to-administer tool in assessing the walking skill of PwPD.Science Citation Index Expanded - Social Science Citation Inde
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Hafif-Orta Evre Alzheimer Hastalığında MPV’nin Serebral Vasküler İskemik Yükle İlişkisi
No full textObjective: Vascular pathologies and chronic neuroinflammation play an important role in Alzheimer's Disease (AD). Increased platelet activity, which underlies the pathophysiology of atherosclerosis and systemic inflammation, has been reported several times of AD. However, the relationship between this increase and neuroimaging correlates has not been studied yet. This study aims to evaluate the relationship between mean platelet volume (MPV), as a reliable indicator of platelet activity, and vascular ischemic burden in neuroimaging of AD. Materials and Methods: Medical records of mild-moderate AD cases diagnosed in our dementia outpatient clinic between 2021-2022 were retrospectively reviewed. Patients were classified as having "mild" or "severe" vascular ischemic burden on MRI. Clinical findings and platelet markers (Platelet-PLT, Platelet Distribution Width-PDW, Mean Platelet Volume-MPV) were compared between the groups. Multivariate regression was applied for potential confounders regarding vascular ischemic burden. Results: Out of 59 patients, 36 had ‘mild' and 23 had 'severe' ischemic burden. Demographic and clinical features were similar; however, MPV was significantly higher in the group with severe ischemia (p:0.013). Multivariate analysis revealed an independent association between MPV and ischemic burden. An MPV value of ≥8.7 fL had a sensitivity of 69.6% and a specificity of 61% for severe burden. Conclusion: Our results highlight the role of platelet activation in the vascular pathogenesis of AD. During the early evaluation of AD, increased MPV can serve as a marker to determine the high-risk group in terms of cerebral ischemic burden. This might enable close monitoring and timely management of high-risk patients regarding the development of vascular morbidities
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
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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