1,721,081 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
Household Air Pollution and Adult Lung Function Change, Respiratory Disease, and Mortality across Eleven Low- and Middle-Income Countries from the PURE Study
No full textPersonal and household PM2.5 and black carbon exposure measures and respiratory symptoms in 8 low- and middle-income countries
No full textAssociations of outdoor fine particulate air pollution and cardiovascular disease in 157 436 individuals from 21 high-income, middle-income, and low-income countries (PURE): a prospective cohort study
Full text linkEl estudio PURE está financiado por el Population Health Research Institute, el Hamilton Health Sciences Research Institute, los Canadian Institutes of Health Research (incluyendo la Estrategia para la Investigación Orientada al Paciente a través de la Unidad de Apoyo SPOR de Ontario), la Heart and Stroke Foundation (ON, Canadá) y el Ministerio de Salud y Cuidados a Largo Plazo de Ontario. El estudio PURE-AIR está financiado por los Canadian Institutes for Health Research (subvención 136893) y por la Oficina del Director de los National Institutes of Health (subvención DP5OD019850). También está financiado por subvenciones sin restricciones de varias compañías farmacéuticas, con importantes contribuciones de AstraZeneca (Canadá), Sanofi-Aventis (Francia y Canadá), Boehringer Ingelheim (Alemania y Canadá), Servier Laboratories y GlaxoSmithKline, y contribuciones adicionales de Novartis, King Pharma y de varias organizaciones nacionales y locales en los países participantes. En el apéndice (pág. 21) se muestran más detalles sobre la financiación y los países e instituciones participantes, así como sobre el personal colaborador.The PURE study is funded by the Population Health Research Institute, Hamilton Health Sciences Research Institute, the Canadian Institutes of Health Research (including through the Strategy for Patient-Oriented Research via the Ontario SPOR Support Unit), the Heart and Stroke Foundation (ON, Canada), and the Ontario Ministry of Health and Long-Term Care. The PURE-AIR study is funded by the Canadian Institutes for Health Research (grant 136893) and by the Office of the Director, National Institutes of Health (award DP5OD019850). It is also funded by unrestricted grants from several pharmaceutical companies, with major contributions from AstraZeneca (Canada), Sanofi-Aventis (France and Canada), Boehringer Ingelheim (Germany and Canada), Servier Laboratories, and GlaxoSmithKline, and additional contributions from Novartis, King Pharma, and from several national and local organisations in participating countries. Further details on the funding and participating countries and institutions, and on collaborating staff, are shown in the appendix (p 21)
Health Effects of Household Solid Fuel Use: Findings from 11 Countries within the Prospective Urban and Rural Epidemiology Study
No full text"The main PURE study and its components are funded by the Population Health Research institute, the Canadian institutes of Health Research, and the Heart and Stroke Foundation of Ontario and through unrestricted grants from several pharmaceutical companies [with major contributions from AstraZeneca (Canada), Sanofi-Aventis (France and Canada), Boehringer Ingelheim (Germany and Canada), Servier, and GlaxoSmithKlinel and additional contributions from Novariis and King Pharma. The PURE-AIR study is funded by Canadian Institutes for Health Research (CIHR; grant 136893) and by the Office of the Director, National Institutes of Health (NIH; award DP5OD019850). The content is solely the responsibility of the authors and does not necessarily represent the official views of the CIHR or the NIH. Various national or local organizations in participating countries also contributed: Fundacion ECLA (Argentina); independent University, Bangladesh and Mitra and Associates (Bangladesh); Unilever Health Institute (Brazil); Public Health Agency of Canada and Champlain Cardiovascular Disease Prevention Network., Canadian Institutes of Health Research, Heart and Stroke Foundation of Canada, and Population Health Research Institute (Canada); Universidad de la Froniera (Chile); National Center for Cardiovascular Diseases (China); Colciencias (grant 6566-04-18062; Colombia); Indian Council of Medical Research (India); Ministry of Science, Technology and Innovation of Malaysia [grant 100-IRDC/BIOTEK 16/6/21 (13/2007) and grant 07-05-IFN-BPH 010], Ministry of Higher Education of Malaysia [grant 600-RMI/LRGS/5/3 (2/2011)], Universiti Teknologi MARA, and Universiti Kebangsaan Malaysia (UKM-Hejim-Komuniti-15-2010) (Malaysia); Polish Ministry of Science and Higher Education (grant 290/W-PURE/2008/0), and Wroclaw Medical University (Poland); North-West University, South Africa and Netherlands Programme on Alternatives in Development (SANPAD), National Research Foundation, Medical Research Council of South Africa, South African Sugar Association (SASA), and Faculty of Community and Health Sciences (UWC; South Africa); AFA Insurance; Swedish Council for Working Life and Social Research, Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning, Swedish Heart and Lung Foundation, Swedish Research Council, the Swedish State under LakarUtbildningsAvtalet agreement, and the Vastra Gotaland Region (FOUU; Sweden); Metabolic Syndrome Society, AstraZeneca, and Sanofi-Aventis (Turkey); and Sheikh Hamdan Bin Rashid Al Maktoum award for Medical Sciences and Dubai Health Authority (United Arab Emirates). S.Y. holds the Heart and Stroke Foundation/Marion W. Burke Chair in Cardiovascular Disease. A complete list of PURE Project office staff, national coordinators, investigators, and key staff is provided in the section, ""PURE Project Investigators and Staff,"" in the Supplemental Material.
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