1,720,957 research outputs found
Health Promoting Schools, Oral Health Multimedia Project in primary schools in Italy
No full textAim:Health Promoting Schools teaches students about knowledge, attitudes and values that guide them to make health-orien-
ted choices. This project aimed to test the effectiveness of a multimedia game designed for elementary school children to teach basic concepts of oral health and use the instrument to identify students’ knowledge.Methods:A specially designed multimedia game on oral health was administered in computer classes, before (T0) and after (T1) an educational stage, to 1300 third (8-9 years) and fifth graders (10-11 years) of elementary schools in two provinces of medium-small cities in Central Italy (Terni and Latina). The test was anonymous and there was no need for ethical approval. Informed parental consent was collected before the first administration. The schools included urban and rural areas of the two provinces. The statistical test used was the non-parametric Wilcoxon signed- rank test. Results:Response rate was 90.6% (due to absence on the game administration date). Of 1300 students tested the average percentage of the correct answers was 40.7% before oral health lessons
and 59.2% afterwards. On the whole there was an improving trend of correct answers from T0 to T1, which was significant (p
< 0.05). Best results were for fifth graders (+ 17.5%), extended school time schedulers (+18.1%) and females (+18.9%). However, the results show poor overall Oral Health knowledge, the total of correct answers achieved was below 60%. These data
are even more worrying, given the simplicity of the questions.
Conclusions: The school has proved an ideal environment for this oral health promotion project, both for the catchment area, and for efficiency and speed of child population screening. The results stress the importance of the school environment for access to health services for all socio- economic classes. Creating a game with multimedia features has proved a valuable tool to attract the attention of children in an era where technology influences mass communication
A model-based simulation approach to support the product configuration and optimization of gas turbine ducts
No full textNowadays, product configuration and optimization are very important topics in several industrial applications such as the manufacturing of Engineered-to-order (ETO) products, where there is a fierce increase in market competition. The product configuration allows past design solutions to be reused and new product variants to be defined and pre-designed. However, the delivery of new configurations of products requires a technical feasibility analysis before closing the contract of the order with the customer. There is a lack of commercial tools which can support the designer from the early configuration phase to the product optimization with the automatic generation of geometric models and simulations. While traditional software tools can be used for the product configuration, with automation in the CAD modeling, other ones can combine optimization algorithms with numerical simulations. However, the combination of all these design levels requires the development of a dedicated platform tools. The research aims to reduce time and cost related to the early design phase of an oil & gas system, focusing on gas turbine ducts. The paper proposes a methodological approach to integrate the design optimization with the product configuration using Model-Based simulations to verify the technical feasibility and to optimize the product design. As a test case, the early design of a gas turbine chimney is proposed
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
A multimedia oral health promoting project in primary schools in central Italy
Get PDFThe purpose of the study Project was to test the effectiveness of a multimedia game designed in order to attract the attention of primary school children to oral health basic concepts and use the instrument to assess students’ knowledge. An originally designed multimedia game on oral health was administered in the computer class rooms, before (T0) and after (T1) an educational stage, to third (8-9 years) and fifth graders (10-11 years) of primary schools in urban and rural areas of two provinces of medium-small cities in Center Italy (Terni and Latina).
Considered variables were: age, gender, school time schedule (only antemeridian, extended schedule). The statistical test used was the non-parametric Wilcox on signed-rank test. Response rate was 90.6% (due to absence on the due date). 1,300 students were involved. Overall, the average of the correct answers was 40.7% before oral health lessons and 59.2% after. An improving trend of correct answers was recorded from T0 to T1, significantly (p
< 0.05) among: fifth graders (+ 17.5%), extended school time schedulers (+18.1%) and females (+18.9%). The results, however, show poor global oral health knowledge, being total percentage of correct answers below 60%. The results stress the importance of the school environment as access to health promotion for all socio-economic classes. The multimedia educational approach has proved a valuable and updated tool to attract the attention of digital native children
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
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