1,720,956 research outputs found
The Impact Of Physical Characteristics On Thermal Performance Of Public Primary School Classrooms In Lagos Metropolis
Get PDFGiven the literature on thermal performance in public schools, the impact of the form/ shape of a building on classrooms’ thermal performance cannot be overemphasized. Since buildings are responsible for almost half of the energy consumed yearly around the world, research targeted at energy savings and thermal comfort are important towards reducing the carbon footprints of buildings on the environment, thereby mitigating climate change effects. The aim of this study is to investigate the impact of the form(shapes) of primary school building envelopes on the thermal performance of primary school classrooms in Lagos. A sample of 160 classrooms was randomly selected from the various educational districts in each local government within Lagos Metropolis. Also, subjective and objective measurements were carried out according to class II field experiment method and in consonance with the stipulated standards. Pupils showed greater adaptation for heat beyond temperatures recommended by ASHRAE, which is 240C. This can be ascribed to adaptations in the tropics. Of the 11 material types and the bungalow structure, the classrooms with Aluminium roof/ block wall/ metal windows/ cement screed floors had the highest occurrence. Also, the I-shaped form had the highest occurrence of the four typologies found, and the Revit-BIM modelling revealed that the ‘U’ shaped layout was found to be the least in energy loading, hence was most preferable for the tropics. These results have significant implications for stakeholders and the government in the making of climate-sensitive decisions for the construction of new school buildings
Comparative Analysis of the Thermal Performance of Selected Public School Classroom Buildings in Lagos, Nigeria
No full textComparative Analysis of the Thermal Performance of Selected Public School Classroom Buildings in Lagos, Nigeria
No full textLimited research has been carried out on school buildings in Africa, especially for children below the age of 11. The aim of this research was to assess the thermal performance of the building envelopes of selected public school classrooms in Lagos Metropolis, in order to have an assessment of the impact of thermal performance (measurement of the environmental factors) on pupils’ comfort. A two stage method of sampling was used; a purposive method to select 5 samples from each of the 6 educational districts in Lagos and then random selection of schools. Questionnaires were administered to 5 pupils per school. Subjective and objective measurements were carried out according to class II field experiment method and in consonance with ASHRAE’s (American Society of Heating, Refrigerating and Air-Conditioning, Engineers) standards. Results showed that classrooms on the mainland had a significantly higher performance than those on the Island. Recommendations were made for future provisions of classroom designs to be suited to the microclimate of their locations and tailored towards enhancement of activities at the hottest periods of the day and year, and no single design template should be adopted for use on various sites.
KEYWORDS: Thermal Performance, Building Envelope, Thermal Comfort, Public Primary Schools, Lagos Metropolis
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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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