1,720,978 research outputs found
A novel azelaic acid formulation for the topical treatment of inflammatory rosacea. A multicentre, prospective clinical trial
Full text linkA b s t r a c t B a c k g r o u n d : Topical azelaic acid (AzA) is a common treatment for mild/moderate in-flammatory rosacea. A i m s : To assess the efficacy and tolerability of a novel formulation cream contain-ing 15% AzA (anti- inflammatory/anti- oxidant/anti- microbial agent) combined with 1% dihydroavenanthramide D (anti- inflammatory/anti- itch) in inflammatory rosacea using clinical/instrumental evaluation. Methods : In this multicentre, prospective, open- label trial, 45 patients with mild/moderate inflammatory rosacea enrolled at the Dermatology Clinic of the University of Catania, Naples, and Rome (Italy) were instructed to apply the cream twice daily for 8 weeks. Clinical evaluation was performed at baseline (T0) and at 8 weeks (T1) by (1) Investigator Global Assessment (IGA) score based on a 5- point scale (from 0 = clear/no erythema/papules/pustules to 4 = severe erythema/several papules/pustules) and (2) inflammatory lesions count. Instrumental evaluation of erythema degree was per-formed by erythema- directed digital photography (EDDP) by a 5- point scale (from 0 = no redness to 4 = severe redness) at all time points. Tolerability was assessed by a self- administered questionnaire at 8 weeks. Statistical analysis was performed using SAS version 9. Results : Forty- four patients completed the study. At week 8, a significant decrease in baseline of IGA scores [median from 3 (T0) to 1 (T1)] and inflammatory lesions count [median from 8 (T0) to 1 (T1)] was recorded along with a significant reduction of ery-thema scores [median from 2 (T0) to 1 (T1)]. No relevant side effects were recorded. Conclusions : Our results suggest that this new non- irritating product represents a valid therapeutic option for mild/moderate inflammatory rosacea, and EDDP is able to provide a more defined evaluation of erythema changes
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
Licochalcone a in combination with salicylic acid as fluid based and hydroxy-complex 10% cream for the treatment of mild acne: A multicenter prospective trial
No full textPurpose: Topical cosmetic agents if correctly prescribed and used may improve outcomes in acne therapy. The aim of this study was to assess the efficacy and tolerability of a new daily cosmetic regimen in the treatment of mild facial acne. Patients and methods: A multicenter, prospective, observational, clinical study was conducted on 91 adult patients with mild acne. Subjects were instructed to apply a fluid containing Licochalcone A/Salicylic acid/L-Carnitine in the morning and a cream with Licochalcone A/Hydroxy-Complex 10% at bedtime for 8 weeks. The efficacy was clinically evaluated by Global Acne Grading System (GAGS) score and by comedones/papules lesions count and by instrumental assessment (SebutapeTMand Reveal Photo Imager/VISIA-CRTM imaging) at baseline, at 4 and 8 weeks. Results: At 4 weeks a statistically significant reduction from baseline of GAGSwas observed. In addition, the mean total count of comedones and papules was significantly reduced by 41% and 45%, respectively, from baseline along with a significant reduction of mean sebum of 47%. At 8 weeks, a further statistically significant reduction from baseline of GAGS, total count of comedones and papules (64% and 71%, respectively), along with an additional sebum reduction of about 52% was also recorded. Conclusion: Our results suggest that the daily regimen based on Licochalcone A with Salicylic acid/L-Carnitine as fluid or with Hydroxy-Complex 10% as cream represent an interesting cosmetic approach for treating mild acne
Topical immunomodulator therapy with squaric acid dibutylester (sadbe) is a disease modifying treatment for severe alopecia areata (aa): results of open-label, paired-comparison, clinical trial
No full textSevere alopecia areata (AA) may have a chronic relapsing course and is often resistant to current treatments. Objectives: The aim of our study was to evaluate whether topical immunotherapy with squaric acid dibutylester (SADBE) is able to improve the course of severe AA and to reduce the severity of relapses. Methods: Fifty-four patients affected by severe AA treated with SADBE who were followed for a period of at least 2 years were selected as the study group. Data collected were compared with those of a matched control group of 54 patients who did not receive any treatment. Student's t-test, analysis of variance (ANOVA) and Pearson's chi-squared test were utilized for data analysis. Results: At the end of therapy, in comparison with the control group, the treatment group showed a statistically significant (p<0.001) improvement. At follow-up, there was no significant change in relapse rate (treated 44% vs control 52%). However, relapses in the treated group were significantly less severe compared with the control group (p<0.001). Conclutions: Our data suggest that topical SADBE represents a valid therapeutic option in severe AA, and may prove to be disease modifying
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
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