1,720,959 research outputs found
Corrigendum
No full textPutignano S, Gareri P, Castagna A, Cerqua G, Cervera P, Cotroneo AM, Fiorillo F, Grella R, Lacava R, Maddonni A, Marino S, Pluderi A, Putignano D, Rocca F. Retrospective and observational study to assess the efficacy of citicoline in elderly patients suffering from stupor related to complex geriatric syndrome. Clin Interv Aging. 2012;7:113–118.One of the author’s names was listed incorrectly as Roberto Grella, it should have been Rodolfo Grella.Read the original articl
The role of citicoline in cognitive impairment: pharmacological characteristics, possible advantages, and doubts for an old drug with new perspectives [Corrigendum]
No full textGareri P, Castagna A, Cotroneo AM, Putignano S, De Sarro G, Bruni AC. Clin Interv Aging. 2015;10:1421–1429.On page 1423, Figure 2 Citicoline’s metabolic pathways, please note that this figure has been modified to include: Adibhatla RM, Hatcher JF, Dempsey RJ. Effects of citicoline on phospholipid and glutathione levels in transient cerebral ischemia. Stroke. 2001;32(10):2376–2381.Read the original articl
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
Relationship between 25-hydroxy vitamin D and cognitive status in older adults: the COGNIDAGE study [Livelli di 25(OH)D e performance cognitive in una popolazione di anziani: Lo studio COGNIDAGE]
No full textAIM: The aim of the COGNIDAGE study was to examine the association between 25(OH)D and cognitive status in a group of elderly patients with vitamin D deficiency and high burden of comorbidities attending Geriatric Outpatient Clinics. MATERIALS AND METHODS: We studied the relationship between 25(OH)D and cognitive functions taking into account comorbidities and cognitive functions assessed by MMSE (Mini Mental State Examination), CDT (Clock Drawing Test) and CIRS (Cumulative Illness Rating Scale), in 132 consecutive elderly patients with low levels of 25(OH)D (<10 ng/ml) compatible with the condition of vitamin deficiency. The association among 25(OH)D levels, MMSE score, CDT score and CIRS scores were analyzed using Pearson correlation. All the elderly patients received an adequate vitamin D supplementation and were reassessed after 6 months. RESULTS: At baseline, mean MMSE and CIRS scores were: 21.8+5.56 and 2.96 +1.63 respectively. Mean CDT score was 3,66+-2.05. No associations were found between 25(OH)D levels and global cognitive function. A significant relationship was observed between the total CIRS score and 25(OH)D levels (r=0.305; p=0.000) as well as between total CIRS score and MMSE (r=-0.375; p=0.000). After 6 months, 83.9 % had 25(OH)D levels >20 ng/ml. Mean MMSE and CDT scores were 22.20+-5.76 and 3.90+-2.06 respectively. There was no significant correlation among 25(OH)D, MMSE and CDT scores while a significant correlation was found between 25(OH)D and CIRS- severity score (r=0.275; p=0.001) and between MMSE and total CIRS scores (r=-0.247; p=0.005 for CIRS-comorbidities; r=-0.184; p=0.04 for CIRS-severity). A post hoc evaluation on two subgroups of elderly patients (the first with vitamin D deficiency without cognitive impairment, the second with vitamin D deficiency and dementia) showed a statistically significant difference (p=0.00001) regarding the CIRS-comorbidities scores. CONCLUSIONS: In our cohort of elderly patients with a high burden of comorbidities, 25(OH)D low levels (<10 ng/ml) are not associated with MMSE and CDT scores. There is no statistically difference among the levels of 25(OH)D and MMSE and CDT scores after 6 months. The strong correlation we found regarding CIRS-comorbidities in the two sub-groups suggests that vitamin D deficiency may play a role in promoting cognitive impairment only with comorbidities
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
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
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