859 resultados para Scientometric indicators
Resumo:
This research aims at performing a comparative study between the Brazilian scientific production in Dentistry, from 2000 to 2009 and countries that contribute with at least 2 % of the world's scientific production indexed in the Scopus database. More specifically, we intend to assess the annual Brazilian scientific production by comparing it to the other countries', analyze the Brazilian and other countries' publications in journals with higher impact factors, as well as to highlight the scientific production from these countries and its international visibility, measured by its total and by its average of citations and normalized citation index per year, by comparing the countries, and to compare the index h of such countries. As work procedure, the SCImago Journal and Country Rank was used as source, identifying the group of producing countries in the Dentistry area from 1996 to 2009. From a total of 136 countries, 13 were highlighted as the most productive, each one of them accounting for at least 2 % the worldwide scientific production in the area. The following indicators were raised for each country: number of produced documents, total of citations, self-citations, average of citations per document and index h. We verified that Brazil is the only country in Latin America that is pictured among the most productive ones in the Dentistry area. We observed that Brazil presents a growing visibility and impact in the international scenery, what suggests that its production is constantly consolidating, with Brazilian scientific recognition in the main vehicles of dissemination in the area. © 2012 Akadémiai Kiadó, Budapest, Hungary.
Resumo:
El uso de instrumentos y directrices en la política pública para la modelación de los resultados de la actividad científica y tecnológica ha sido frecuente en el Estado colombiano. Este trabajo bajo la ‘teoría de la regulación’ de Black, examina el Modelo de Medición de Grupos de Investigación y de calificación de Revistas Científicas –Publindex- de Colciencias, como instrumentos de intervención del Estado, fundados en el uso de indicadores bibliométricos y cienciométricos. Para ello, se da respuesta a interrogantes referidos a la auto-organización de la ciencia; su relación con el Modelo de Grupos de Investigación, la influencia que dicho modelo tiene sobre la libertad de investigación; las implicaciones que tiene el otorgar categoría o status a los Grupos por actos estatales y la conveniencia de que el Estado tenga un sistema de incentivos para el examen de información científica y técnica originada en indicadores científicos, entre otros. Se busca en síntesis, aportar elementos que permitan, desde una perspectiva sistémica e interdisciplinaria explicar algunas de las razones por las cuales los elementos involucrados en la estructuración de la normativa de ciencia y tecnología, pueden inducir a afectaciones negativas y positivas en el quehacer científico y tecnológico.
Resumo:
VANTI, Nadia. A cientometria revisitada à luz da expansão da ciência, da tecnologia e da inovação. PontodeAcesso, Salvador, v. 5, p. 5-31, 2011
Identidade das Ciências Humanas e métricas de avaliação: qualis periódicos e classificação de livros
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This article aims to discuss the evaluation metrics adopted by Capes in the evaluation process of national graduate programs in the field of the Human Sciences, especially with respect to the classifications of scientific journals and books.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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VANTI, Nadia. A cientometria revisitada à luz da expansão da ciência, da tecnologia e da inovação. PontodeAcesso, Salvador, v. 5, p. 5-31, 2011
Resumo:
VANTI, Nadia. A cientometria revisitada à luz da expansão da ciência, da tecnologia e da inovação. PontodeAcesso, Salvador, v. 5, p. 5-31, 2011
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Brucite [Mg(OH)2] microbialites occur in vacated interseptal spaces of living scleractinian coral colonies (Acropora, Pocillopora, Porites) from subtidal and intertidal settings in the Great Barrier Reef, Australia, and subtidal Montastraea from the Florida Keys, United States. Brucite encrusts microbial filaments of endobionts (i.e., fungi, green algae, cyanobacteria) growing under organic biofilms; the brucite distribution is patchy both within interseptal spaces and within coralla. Although brucite is undersaturated in seawater, its precipitation was apparently induced in the corals by lowered pCO2 and increased pH within microenvironments protected by microbial biofilms. The occurrence of brucite in shallow-marine settings highlights the importance of microenvironments in the formation and early diagenesis of marine carbonates. Significantly, the brucite precipitates discovered in microenvironments in these corals show that early diagenetic products do not necessarily reflect ambient seawater chemistry. Errors in environmental interpretation may arise where unidentified precipitates occur in microenvironments in skeletal carbonates that are subsequently utilized as geochemical seawater proxies.
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The construction industry is dynamic in nature. The concept of project success has remained ambiguously defined in the construction industry. Project success is almost the ultimate goal for every project. However, it means different things to different people. While some writers consider time, cost and quality as predominant criteria, others suggest that success is something more complex. The aim of this paper is to develop a framework for measuring success of construction projects. In this paper, a set of key performance indicators (KPIs), measured both objectively and subjectively are developed through a comprehensive literature review. The validity of the proposed KPIs is also tested by three case studies. Then, the limitations of the suggested KPIs are discussed. With the development of KPIs, a benchmark for measuring the performance of a construction project can be set. It also provides significant insights into developing a general and comprehensive base for further research.
Resumo:
Construction sector application of Lead Indicators generally and Positive Performance Indicators (PPIs) particularly, are largely seen by the sector as not providing generalizable indicators of safety effectiveness. Similarly, safety culture is often cited as an essential factor in improving safety performance, yet there is no known reliable way of measuring safety culture. This paper proposes that the accurate measurement of safety effectiveness and safety culture is a requirement for assessing safe behaviours, safety knowledge, effective communication and safety performance. Currently there are no standard national or international safety effectiveness indicators (SEIs) that are accepted by the construction industry. The challenge is that quantitative survey instruments developed for measuring safety culture and/ or safety climate are inherently flawed methodologically and do not produce reliable and representative data concerning attitudes to safety. Measures that combine quantitative and qualitative components are needed to provide a clear utility for safety effectiveness indicators.