1,721,049 research outputs found

    The Efficacy of a Dietary Supplement with Carnosine and Hibiscus Sabdariffa L. (AqualiefTM) in Patients with Xerostomia: a Randomized, Placebo-Controlled, Double-Blind Trial

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    The purpose of this study was to test the safety and efficacy of AqualiefTM in patients affected by xerostomia. The main ingredients of AqualiefTM are carnosine and dried calyces of Hibiscus sabdariffa L. (karkadè) for their buffering effect at pH 7 as well as for their antioxidant, antimicrobial and lenitive properties. In a Randomized, Placebo-Controlled, Double-Blind Trial, sixty patients with xerostomia (RTOG/EORTC grade 1-2) were randomly assigned to receive either placebo, or AqualiefTM tablets (three times/day after meals) for 6 consecutive days. A questionnaire was used to evaluate dry mouth symptoms before and after 6 days of AqualiefTM or placebo application. Unstimulated and stimulated salivary flow rates and pH were measured before and after application. Treatment with AqualiefTM for 6 days induced a significant increase in saliva pH from 6.2 ± 0.5 to 6.4 ± 0.6 (P < 0.05) while placebo was ineffective (from 6.2 ± 0.5 to 6.3 ± 0.5). AqualiefTM also induced a significant increase in the pH of stimulated saliva from 6.3 ± 0.5 to 6.6 ± 0.5 (P < 0.01). Placebo was ineffective also in this setting (from 6.2 ± 0.5 to 6.3 ± 0.5). Besides an expected normalization of the saliva pH value, AqualiefTM treatment for 6 days greatly increased (56%, P < 0.0001) saliva production. Placebo induced a 19% increase (P < 0.05), which was likely due to mechanical stimulation. AqualiefTM also increased stimulated saliva production (27% increase with respect to day 0, P < 0.05), while placebo was ineffective. AqualiefTM was effective in regulating the saliva pH, in increasing saliva production and improving dry mouth symptoms in xerostomic patients

    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

    Effects of pacifiers on peripheral capillary oxygen saturation during wake time

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    We studied the variations in peripheral capillary oxygen saturation (SpO2) during wake time in relation to pacifier use and to the following different positions: supine at 0◦, supine at 30◦ (in babies under one year) vs. sitting (in babies between 1 and 3 years of age). We observed 54 patients under the age of three years, weighing over 1.800 g. Peripheral oxygen saturation was recorded for at least 40 min per patient in the following positions: 20 min lying supine at 0◦ (10 min with a pacifier and 10 min without); 20 min lying supine at 30◦ inclination or in a sitting position if the baby was older than one year (10 min with a pacifier and 10 min without). Pacifier use improved the peripheral oxygen saturation both in the 0◦ supine position, and at 30◦ in a sitting position. No significant differences were observed in the SpO2 levels comparing the different positions. In conclusion a pacifier thus seems to have a positive effect on respiration

    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

    Alternative Augmentative Communication in paediatric dentistry: a mighty tool to amplify mother tongue's power

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    Aim: The role of a child's mother tongue in shaping his/her identity and emotional development is crucial. In the context of paediatric dentistry, this principle should always be reminded. The child's right to effective communication, even when a language barrier exists, is a fundamental principle, as recently stated in the 'Rights from the Start' rights fact sheet. Preserving a child's native language in the dental setting, especially in the context of an increasingly diverse society with a significant number of refugee children, is essential. Augmentative and Alternative Communication (AAC) strategies can assist in bridging language gaps and improving treatment outcomes, blending with the traditional approaches used in paediatric dentistry. The article promotes flexibility, innovation, and empathy in paediatric dentistry to provide optimal care and ensure that every child's rights are respected. Conclusion: • The relationship with one's mother language plays a central role in children's growth and in the relationship they can develop with the world, "motherised" by the words of the caregiver. • The interaction between immigrant children from different linguistic and cultural backgrounds and dentists providing their care requires the integration of traditional paediatric dental techniques with AAC strategies that can compensate for deficient oral communication. • Dentists treating immigrant children should follow the suggestions proposed in this article to establish the best and most tailored paediatric setting for the child's specific needs

    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
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