1,721,589 research outputs found
Inquinamento termico dell'aria a Napoli
No full textViene eseguito l'esame comparato tra le serie storiche dei dati termici dell'aria rilevati a Napoli, all'Osservatorio geofisico dell'Istituto di Geologia e Geofisica ed all'Osservatorio vesuviano. I risultati, che hanno mostrato un sensibile inquinamento termico dell'aria, vengono discussi nel loro aspetto micriclimatico in ordine ai problemi della diffusione degli inquinanti
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
The choice of the functional form in the consumption Euler equation: a critical view
Full text linkThis thesis deals with some analytical questions that arise in the modern theory of con-sumption based on the intertemporal utility maximization model, also known as the Euler equation approach. It thus builds on the theoretical and empirical literature which has stemmed from the seminal contribution by Hall (1978), who extended the basic life cycle – permanent income model of consumption to the case of uncertainty. In reviewing this literature and the theoretical developments and extensions that the original model has undergone due to the need of accounting for the puzzling empirical evidence, the thesis aims at highlighting the crucial role that the preference parameters play in the specifica-tion of the theoretical content of the model and its predictions, and in the definition of the policy implications that may be drawn from it.
Crucial as the role of preference parameters may be both in theory and practice, our analysis reveals, also by making use of some simulation exercises, the substantial inability of the Euler equation approach to give definite content to such parameters, due to the heavy dependence of the results of parameter estimation on the specification of the utility function.
The first paper offers a survey of the literature which, following Hall (1978), has en-gaged in the task of testing the model against empirical evidence and proposing successive extensions and refinements of the original model ending up in the current enriched ver-sions of it. The paper draws on other surveys but focuses in particular on an overall as-sessment of the theoretical implications of the extensions which the literature has proposed. The second paper focuses on the literature directly aiming to estimate the pa-rameters characterizing preferences – offering in this respect a specific survey which seems to be lacking in the literature – and highlights the crucial role of the specification of the utility function in such estimates. Drawing on this result, the third paper proposes a number of original simulation exercises aimed at showing that the same time profile of consumption and saving may give rise to the estimation of rather different values of the crucial preference parameters depending on the particular utility function adopted
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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