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    Faz ı periodontal tedavinin kronik periodontitisli hastalarda tükürük β galaktozidaz düzeyleri ve ağız kokusu üzerindeki etkisinin değerlendirilmesi

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    Çalışmamızın amacı ağız kokusu (AK) olan kronik periodontitisli, ağız kokusu olmayan kronik periodontitisli ve periodontal sağlıklı bireylerde plak indeksi (PI), gingival indeks (GI), cep derinliği (CD), klinik ataşman seviyesi (KAS), halimeter değerleri (HMD), organoleptik ölçüm skorları (OLS), Winkel dil kaplama indeksi (WDKI) ve tükürük &#946; galaktozidaz düzeylerinin başlangıçta ve faz I periodontal tedaviden 1 ay sonra değerlendirilmesi ve faz I periodontal tedavinin parametreler üzerindeki etkinliğinin araştırılmasıdır. Çalışmada yer alan ağız kokusu olan kronik periodontitisli (Grup1-AK(+); 25 hasta), ağız kokusu olmayan kronik periodontitisli (Grup2-AK(-); 25 hasta) ve periodontal olarak sağlıklı (Grup3-Kontrol; 25 hasta) bireylerde PI, GI, CD, KAS, HMD, OLS, WDKI ve tükürük &#946; galaktozidaz düzeyleri ölçümleri başlangıçta ve faz I periodontal tedaviden 1 ay sonra gerçekleştirildi. Kronik periodontitisli hastalar dil yüzeği temizliği konusunda bilgilendirildi. Sonuçlar istatistiksel olarak değerlendirildi (p<0.05 değeri için sonuçlar istatistiksel olarak anlamlı kabul edildi). AK(+) ve AK(-) kronik periodontitis gruplarında tüm parametreler periodontal olarak sağlıklı gruptan istatistiksel olarak anlamlı düzeyde yüksek bulundu (p<0.05). Yapılan istatistiksel değerlendirme sonucuna göre PI, GI, HMD, OLS, WDKI ve tükürük &#946; galaktozidaz düzeylerine ait başlangıç değerleri AK(+) ve AK(-) grupları arasında istatistiksel olarak anlamlı derecede farklılık gösterdi (p<0.05). Cerrahi olmayan periodontal tedavi ve dil temizliğinden sonra ağız kokusu olan ve olmayan kronik periodontitisli hastalarda PI, GI, CD, KAS, HMD, OLS, WDKI ve tükürük &#946; galaktozidaz düzeylerinde başlangıca göre istatistiksel olarak anlamlı derecede azalma bulundu (p<0.05). Tedavi sonrasında AK(+) ve AK(-) grupları karşılaştırıldığında HMD, OLS ve WDKI değerleri AK(+) grubunda daha yüksek ve istatistiksel olarak anlamlı düzeyde farklılık gösterdi (p<0.05). Çalışmada yer alan tüm bireylere ait başlangıç ölçümlerin korelasyon analizine göre HMD ile PI, GI, CD, KAS, OLS, WDKI ve tükürük &#946;-galaktozidaz düzeyleri arasında pozitif korelasyon tespit edildi . Faz I periodontal tedaviden sonra ise HMD ile PI, GI, CD, KAS, OLS, WDKI arasında pozitif korelasyon saptanırken, HMD ile tükürük &#946;-galaktozidaz düzeyleri arasında korelasyon saptanmadı . Çalışmamızda tükürük &#946; galaktozidaz düzeyleri ile CD, KAS, HMD, OLS ve WDKI arasında sadece tedavi öncesinde pozitif korelasyon bulundu. Sonuçlarımıza göre tükürük &#946; galaktozidaz düzeyindeki artış kronik periodontisli hastalarda ağız kokusu oluşumunda önemli rol oynamaktadır. Çalışma sonuçlarımıza göre kronik periodontitisli hastalarda cerrahi olmayan periodontal tedavi ve dil temizliğinin ağız kokusunun tedavisinde etkin bir yöntem olduğunu düşünmekteyiz.The aims of this study are to evaluate plaque index (PI), gingival index (GI), probing pocket depth (PPD), clinical attachment level (CAL), halimeter values (HMV), organoleptic scores (OLS), Winkel tongue coating index (WTCI) and salivary &#946; - galactosidase levels at baseline and 1 month after phase I periodontal therapy in chronic periodontitis patients with halitosis (H), chronic periodontitis patients without halitosis and periodontally healthy patients and also to investigate the effect of phase I periodontal therapy on these parameters. PI, GI, PPD, CAL, HMV, OLS, WTCI scores were recorded and salivary &#946; - galactosidase levels were measured in the chronic periodontitis patients with halitosis (Group1-H(+); 25 patients), chronic periodontitis patients without halitosis (Group2-H(-); 25 patients) and periodontally healthy (Group3-Control; 25 subjects) individuals at baseline and 1 month after phase I periodontal treatment. Chronic periodontitis patients were informed about tongue cleaning during the therapy. Statistical analysis were performed (Significance level was declared at P < 0.05 for all statistical evaluations) . All of the parameters in H (+) and H (-) chronic periodontitis groups were significantly higher than periodontally healthy group (p <0.05). The baseline values of PI, GI, HMV, OLS, WTCI and salivary &#946; - galactosidase levels were showed significantly difference between Group1-H(+) and Group2-H(-) (p <0.05). A statistically significant decrease was found in PI, GI, PPD, CAL, HMV, OLS, WTCI and salivary &#946; - galactosidase levels in chronic periodontitis patients with or without halitosis after non - surgical periodontal treatment and tongue cleaning (p <0.05). When we compared to H (+) and H (-) groups it was found that HMV, OLS and WTCI scores showed a higher and statistically significant difference in H (+) group after treatment (p <0.05). There was a positive correlation between HMV and PI, GI, PPD, CAL, OLS, WTCI and salivary &#946;-galactosidase levels of initial measurements of all the subjects in the study. Although there was a positive correlation between HMV and PI, GI, PPD, CAL, OLS, WTCI, there was no correlation between HMV and salivary &#946;-galactosidase levels after phase I periodontal therapy. In our study, salivary &#946; - galactosidase levels were positively correlated with PPD, CAL, HMV, OLS and WTCI only before treatment. According to our results, the increase in salivary &#946; - galactosidase level have an important role in the development of oral malodor in patients with chronic periodontitis. In conclusion, we suggest that non-surgical periodontal treatment and tongue cleaning are effective methods in the treatment of oral malodor in patients with chronic periodontitis

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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