1,720,966 research outputs found
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
Les déterminants de la structure financière des PME marocaines : cas de la ville de Meknès.
Get PDFLa théorie financière prouve que certaines entreprises privilégient de se financer seulement par les fonds propres alors que d’autres se privilégient une structure mixte composée des fonds propres et des fonds empruntés. Le choix d’une structure financière dépend de plusieurs facteurs. Notre objectif dans cet article est de déterminer empiriquement les facteurs qui conduisent les PME à préférer une structure financière.Pour tester nos hypothèses, nous avons élaboré un modèle de régression multiple. Il s’appuie sur un ensemble de facteurs retenus de la littérature qui s’avèrent déterminants dans le choix d’une structure financière. La validation du modèle s’appuie sur un échantillon de 48 PME de la ville de Meknès
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
Financing and the Challenges of Developing the Innovation Capacity of Enterprises in Developing Countries: The Case of the MENA Region and Africa
Get PDFInnovation currently represents a significant source of added value and competitiveness for companies on the international scale. However, financing innovation activities is a real challenge to overcome in order to successfully achieve the goals in emerging countries. The main objective of this paper is to conduct an empirical analysis on the identification of different sources of financing for firm innovation in the MENA region and Africa. To do this, we have constructed a battery of measures of the innovation capacity of firms: product, process, invention and innovation intensity of firms. In addition, the sources of financing were assessed by financing investments and working capital through bank debt, non-bank financial institutions, capital increase, equity, commercial debt and other sources of financing. The empirical study is based on the World Bank survey of more than 34,000 firms in the MENA region and Africa over the period 2011 and 2020. Through the use of several econometric modeling, the estimation results indicate the importance of bank financing, non-bank financial institutions, and trade credit in financing innovation of MENA and African firms
Financial and Non-Financial Obstacles to Innovation: Empirical Evidence at the Firm Level in the MENA Region
No full textInnovation, in all its forms, has become a central activity in companies. Moreover, innovation is considered as the engine of growth in several countries. The main objective of this paper is to study the determinants of innovation (product and process) in firms in the Middle East and North Africa (MENA) region via concentrating on the impact of financial and non-financial obstacles. The empirical study refers to row data collected by the World Bank’s Survey of Enterprises (WBES) between 2013 and 2020 in 10 MENA countries. The empirical results of the probit model estimation show that international quality certification, women’s participation in ownership, and investment in research and development (R&D) have a positive impact on all types of innovation. Nevertheless, small firms, sole proprietorships, and firms managed by women are found to be less innovative. The problem of endogeneity between innovation and financial obstacles is controlled thanks to the use of the instrumental regression method (IV-probit). The results confirm that the variable measuring the financial obstacles is endogenous, and it impacts all types of innovation negatively. The results of the IV-probit regression show that the non-financial obstacles related to the business environment which negatively affect innovation are: business licensing and permits, corruption, access to electricity, labor regulations, political instability, and the practices of competitors in the informal sector
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