1,720,959 research outputs found
Valutazione comparativa al microscopio elettronico a scansione di una strumentazione endodontica sperimentale.
No full textGli Autori hanno effettuato una valutazione comparativa del grado di detersione endodontica ottenuta da uno strumento canalare di nuova concezione, Canal Master, e da strumenti tradizionali, files e reamers. Entrambe le metodiche di strumentazione sono state associate a due regimi irrigatori:
1) NaClO al 2,5%;
2) NaClO 2,5%-EDTA 15%-NaClO 2,5%.
L'analisi al SEM dei risultati ottenuti ha permesso di osservare un miglior quadro di detersione parietale con il nuovo strumento associato al sistema irrigatorio NaClO 2,5%-EDTA 15%-NaClO 2,5%. A tale associazione è conseguita la maggior rimozione di residui organico-minerali dalle pareti e la miglior visualizzazione degli orifizi dei tubuli dentinali
I derivati fenolici nelle medicazioni intermedie in endodonzia. Nota I: Revisione della letteratura
No full textGli Autori hanno eseguito una revisione della letteratura sui derivati fenolici, composti antisettici largamente utilizzati nelle medicazioni endodontiche intermedie. L'interesse per tali sostanze è motivato dalla frequenza con cui trovano applicazione nella clinica al fine di mantenere l'antisetticità ottenuta nel corso della preparazione chemiomeccanica del canale radicolare.The authors review the literature on phenolic derivatives, a widely used compound antiseptic for intermediate endodontic medication. There is interest in these substances owing to the frequency of their clinical application in order to maintain the antiseptic conditions obtained during the course of the chemico-mechanical preparation of the radicular canal
Sodium iodide associated to salicylic acid in the topical management of chronic oral candidiasis: a randomized trial
No full textAbstract
Candidiasis is a relevant problem in oral medicine practice. We compared the ~;ntimyootic activity of nystatin with a solution
of sodium iodide associated to salicylic acid (SISA) in the topical management of chronìc candidiasis. Consecutive patients
affected by chronic candidiasis were randomly allocated to SISA (group A) or nystatin (group B). VAS and swab scores were
recorded at the beginning and at the end of the study while the healing index was evaluated at the end of the study only.
Data were analyzed by STATA 10 MP. Forty patients (20 male, 20 female) were randomized. SIAS was as effective as
nystatin in affecting VAS (p greater than 0.05) and swab score (p greater than 0.05). A statistically significant reduction (p
less than 0.05) ofhealing index was observed in both groups. No side effects were reported. SISA topical application, shows
a comparable efficacy to the nystatin in the management of chronic oral candidiasis. Its use could represent an adequate
alternative to the nystatin above ali in the cases of drug-resistance. Further large scale randomized trials are warranted to
confirrn these preliminary findings.
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
Indagine multicentrica sulla presenza di Legionella spp negli impianti idrici di riuniti odontoiatrici.
No full text- …
