1,720,956 research outputs found
Platelet-Rich Fibrin in Non-Surgical Periodontal Therapy: A Split-Mouth Randomized Controlled Clinical Trial
No full textThis clinical trial investigated the efficacy of platelet-rich fibrin (PRF) as an adjunct to conventional scaling and root planing (SRP) in non-surgical periodontal therapy. In a split-mouth randomized controlled trial with 13 patients and 26 periodontal pocket sites, PRF was inserted in test group pockets alongside SRP, while control group pockets received SRP alone. Measurements at baseline and six weeks included probing pocket depths (PPDs), clinical attachment loss (CAL), gingival recession (GR), the plaque index, and the gingivitis index. The wound healing index was assessed at six weeks. The results show statistically significant improvements in the SRP+PRF group compared to SRP alone, demonstrating a better CAL gain (SRP+PRF group: 2.69 ± 0.63; SRP alone group: 4.15 ± 0.69—p-value: 0.001), PPD reduction (SRP+PRF group: 2.62 ± 0.65; SRP alone group: 3.85 ± 0.80—p-value: 0.001), and GR minimization (SRP+PRF group: 0.46 ± 0.62; SRP alone group: 0.81 ± 0.72—p-value: 0.21). The adjunctive use of PRF enhanced healing, reduced pocket depths, decreased tissue morbidity, and minimized gingival recession. This study concludes that PRF placement is effective in 5–6 mm pockets, potentially reducing the number of periodontal treatment sessions needed for pocket closure
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
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
Quantitative evaluation of serum fucose in oral squamous cell carcinoma patients
No full textBackground: Cancer, a disorder of cellular behavior is characterized by
the alteration of serum glycoproteins, which are composed of different
monosaccharides. One of the monosaccharides is l-fucose, a methyl
pentose, which is the terminal sugar in most of the plasma
glycoproteins. Elevated levels of protein-bound fucose have been
reported in various disease states as well as in malignancies. Aim: To
ascertain the role of serum fucose as a biomarker and to correlate with
other studies for its effective clinical application. Materials and
Method: The study was carried out on 67 subjects, including 14 healthy
individuals and 53 oral squamous cell carcinoma cases. The serum fucose
level estimation was done based on the method as adopted by Winzler
using cysteine reagent. Statistical analysis included Chi-square test,
Karl Pearson correlation test and Student′s t test to evaluate
the significance and variability of values between groups. Results:
Serum fucose levels were independent of age and sex. However, there was
significant increase in mean serum fucose level of oral squamous cell
carcinoma patients compared with healthy controls. The results
correlated well with other studies. Conclusion: Serum fucose can be
used as an effective diagnostic biomarker in oral squamous cell
carcinoma patients
Quantitative evaluation of serum fucose in oral squamous cell carcinoma patients
No full textBackground: Cancer, a disorder of cellular behavior is characterized by
the alteration of serum glycoproteins, which are composed of different
monosaccharides. One of the monosaccharides is l-fucose, a methyl
pentose, which is the terminal sugar in most of the plasma
glycoproteins. Elevated levels of protein-bound fucose have been
reported in various disease states as well as in malignancies. Aim: To
ascertain the role of serum fucose as a biomarker and to correlate with
other studies for its effective clinical application. Materials and
Method: The study was carried out on 67 subjects, including 14 healthy
individuals and 53 oral squamous cell carcinoma cases. The serum fucose
level estimation was done based on the method as adopted by Winzler
using cysteine reagent. Statistical analysis included Chi-square test,
Karl Pearson correlation test and Student′s t test to evaluate
the significance and variability of values between groups. Results:
Serum fucose levels were independent of age and sex. However, there was
significant increase in mean serum fucose level of oral squamous cell
carcinoma patients compared with healthy controls. The results
correlated well with other studies. Conclusion: Serum fucose can be
used as an effective diagnostic biomarker in oral squamous cell
carcinoma patients
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