1,720,976 research outputs found
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Développement d’un outil de simulation couplé pour la demande énergétique des bâtiments urbains, des systèmes énergétiques de quartier et la modélisation du microclimat
No full textThis PhD work investigates the complex links between urban physical processes, through the development of coupled simulation platforms to account simultaneously for building energy demand, individual or district energy systems, and urban microclimate. The spatial and temporal scales correspond to urban neighborhoods under explicit geometries, and annual simulations respectively. Several coupling strategies have been evaluated, regarding thermal efficiency indicators, and the determination of the diversity of coupled phenomena. The synchronous coupling schemes can effectively assess the dynamical interactions between buildings and the local microclimate. Nevertheless, the coupling variable is sensitive to the thermal properties of the building. The simplification of the urban canopy layer to a single-node description reveals significant variability in building energy demand. Besides, the developed model has been employed to assess the thermal performance of an urban neighborhood in La Rochelle. The transition from local energy systems to the district energy network eliminates anthropogenic heat from buildings, and improves the outdoor thermal comfort conditions, acting as a local heat island mitigation strategy. However, it is associated with an energy penalty due to the ground losses of the piping circuit. This energy penalty is amplified when a passive mitigation strategy (cool materials) is implemented concurrently.Ce travail de thèse aborde les liens complexes entre les processus physiques urbains, par le développement de modèles couplés pour tenir compte simultanément de la demande énergétique des bâtiments, les systèmes énergétiques individuels ou de quartier, et du microclimat urbain. L'échelle spatiale correspond aux quartiers urbains explicités géométriquement, et l’échelle temporelle est annuelle. Différentes stratégies de couplage ont été évaluées, pour leur capacité de représentation des effets thermiques, et des phénomènes couplés. Les schémas de couplages synchrones sont efficaces pour les interactions dynamiques entre bâtiments et microclimat. Néanmoins, ce couplage est sensible aux propriétés thermiques du bâtiment. La simplification de la canopée urbaine à un nœud de calcul entraîne une variation significative de la demande énergétique. Par ailleurs, le modèle développé a été utilisé pour évaluer les performances thermiques d'un quartier de La Rochelle. Le remplacement des climatiseurs individuels par un réseau urbain de froid élimine la contribution anthropique des bâtiments, et améliore le confort thermique extérieur, agissant comme une stratégie d'atténuation locale d’îlot de chaleur. Cependant, il entraîne une pénalité énergétique due aux pertes par le sol du réseau urbain. Cette pénalité énergétique est amplifiée lorsqu'une stratégie d'atténuation passive (matériaux froids) est mise en œuvre simultanément
Développement d’un outil de simulation couplé pour la demande énergétique des bâtiments urbains, des systèmes énergétiques de quartier et la modélisation du microclimat
No full textCe travail de thèse aborde les liens complexes entre les processus physiques urbains, par le développement de modèles couplés pour tenir compte simultanément de la demande énergétique des bâtiments, les systèmes énergétiques individuels ou de quartier, et du microclimat urbain. L'échelle spatiale correspond aux quartiers urbains explicités géométriquement, et l’échelle temporelle est annuelle. Différentes stratégies de couplage ont été évaluées, pour leur capacité de représentation des effets thermiques, et des phénomènes couplés. Les schémas de couplages synchrones sont efficaces pour les interactions dynamiques entre bâtiments et microclimat. Néanmoins, ce couplage est sensible aux propriétés thermiques du bâtiment. La simplification de la canopée urbaine à un nœud de calcul entraîne une variation significative de la demande énergétique. Par ailleurs, le modèle développé a été utilisé pour évaluer les performances thermiques d'un quartier de La Rochelle. Le remplacement des climatiseurs individuels par un réseau urbain de froid élimine la contribution anthropique des bâtiments, et améliore le confort thermique extérieur, agissant comme une stratégie d'atténuation locale d’îlot de chaleur. Cependant, il entraîne une pénalité énergétique due aux pertes par le sol du réseau urbain. Cette pénalité énergétique est amplifiée lorsqu'une stratégie d'atténuation passive (matériaux froids) est mise en œuvre simultanément.This PhD work investigates the complex links between urban physical processes, through the development of coupled simulation platforms to account simultaneously for building energy demand, individual or district energy systems, and urban microclimate. The spatial and temporal scales correspond to urban neighborhoods under explicit geometries, and annual simulations respectively. Several coupling strategies have been evaluated, regarding thermal efficiency indicators, and the determination of the diversity of coupled phenomena. The synchronous coupling schemes can effectively assess the dynamical interactions between buildings and the local microclimate. Nevertheless, the coupling variable is sensitive to the thermal properties of the building. The simplification of the urban canopy layer to a single-node description reveals significant variability in building energy demand. Besides, the developed model has been employed to assess the thermal performance of an urban neighborhood in La Rochelle. The transition from local energy systems to the district energy network eliminates anthropogenic heat from buildings, and improves the outdoor thermal comfort conditions, acting as a local heat island mitigation strategy. However, it is associated with an energy penalty due to the ground losses of the piping circuit. This energy penalty is amplified when a passive mitigation strategy (cool materials) is implemented concurrently
Développement d’un outil de simulation couplé pour la demande énergétique des bâtiments urbains, des systèmes énergétiques de quartier et la modélisation du microclimat
No full textThis PhD work investigates the complex links between urban physical processes, through the development of coupled simulation platforms to account simultaneously for building energy demand, individual or district energy systems, and urban microclimate. The spatial and temporal scales correspond to urban neighborhoods under explicit geometries, and annual simulations respectively. Several coupling strategies have been evaluated, regarding thermal efficiency indicators, and the determination of the diversity of coupled phenomena. The synchronous coupling schemes can effectively assess the dynamical interactions between buildings and the local microclimate. Nevertheless, the coupling variable is sensitive to the thermal properties of the building. The simplification of the urban canopy layer to a single-node description reveals significant variability in building energy demand. Besides, the developed model has been employed to assess the thermal performance of an urban neighborhood in La Rochelle. The transition from local energy systems to the district energy network eliminates anthropogenic heat from buildings, and improves the outdoor thermal comfort conditions, acting as a local heat island mitigation strategy. However, it is associated with an energy penalty due to the ground losses of the piping circuit. This energy penalty is amplified when a passive mitigation strategy (cool materials) is implemented concurrently.Ce travail de thèse aborde les liens complexes entre les processus physiques urbains, par le développement de modèles couplés pour tenir compte simultanément de la demande énergétique des bâtiments, les systèmes énergétiques individuels ou de quartier, et du microclimat urbain. L'échelle spatiale correspond aux quartiers urbains explicités géométriquement, et l’échelle temporelle est annuelle. Différentes stratégies de couplage ont été évaluées, pour leur capacité de représentation des effets thermiques, et des phénomènes couplés. Les schémas de couplages synchrones sont efficaces pour les interactions dynamiques entre bâtiments et microclimat. Néanmoins, ce couplage est sensible aux propriétés thermiques du bâtiment. La simplification de la canopée urbaine à un nœud de calcul entraîne une variation significative de la demande énergétique. Par ailleurs, le modèle développé a été utilisé pour évaluer les performances thermiques d'un quartier de La Rochelle. Le remplacement des climatiseurs individuels par un réseau urbain de froid élimine la contribution anthropique des bâtiments, et améliore le confort thermique extérieur, agissant comme une stratégie d'atténuation locale d’îlot de chaleur. Cependant, il entraîne une pénalité énergétique due aux pertes par le sol du réseau urbain. Cette pénalité énergétique est amplifiée lorsqu'une stratégie d'atténuation passive (matériaux froids) est mise en œuvre simultanément
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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