1,720,971 research outputs found

    Exploring the impact of perceived control on thermal comfort and indoor air quality perception in schools

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    Perceived control, as an integral part of the psychological impact, can be considered an important factor in the adaptive thermal comfort model. With the aim of exploring the relationship between perceived control and thermal comfort and indoor air quality (IAQ) in school buildings, a three-month field study was conducted during the heating season involving 26 school classrooms in the Italian Province of Pisa. The experimental campaign was conducted by carrying out measure-ments of thermal and IAQ parameters. In addition to instrumental measurements, subjective analysis was carried out by collecting 859 questionnaires filled in by students concurrently with objective measurements. The study demonstrate that the thermal neutral temperatures of the occupants with and without perceived control are, respectively, 21.7 degrees C and 22.2 degrees C and that the enhancing influence of the perceived control on the thermal sensation decreases with the increase of indoor operative temperature. The study shows that the perception of IAQ by the occupants is inversely proportional to the operative temperature and CO2 concentration. Furthermore, it emerges that students with the perception of control express better subjective judgments regarding the IAQ. It is suggested to ensure environmental control in order to improve indoor comfort and decrease the energy demand for heating

    Thermal comfort and adaptive capacities: Differences among students at various school stages

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    In educational buildings, ensuring thermal comfort is crucial in guaranteeing pupils' health and high learning. Previous studies show different thermal comfort expectations in the educational stage. However, only a few studies have simultaneously investigated all educational stages and considered schools and universities in different areas. In this study, data collected from 24 classrooms in the winter and 1548 questionnaires were used to analyse all the educational stages in one region, thus minimising the possible bias associated with the climate zone, operation mode, and cultural adaptation. Hence, all differences in the perception of the thermal environment were likely to be due to only the educational stage. The results showed that adaptive capacities, such as clothing insulation and window operation, decrease at lower educational stages. Neutral, comfort and preferred temperatures are largely dependent on the educational stage and increase with it (e.g. 20.6, 21.7, 23.1, and 23.6 °C for primary school, middle school, high school, and university, respectively). Furthermore, a linear relationship between students’ age and neutral temperature was derived. These differences in thermal comfort expectations were reflected in the variable predictive capability of the predicted mean vote (the greatest difference between predicted and actual thermal sensations in primary school). Overall, this study provides evidence of the necessity for thermal comfort models that can capture variations depending on the educational stage

    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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