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Showing 4 results for Dehghan
Aram Tirgar, Mousa Yaminfirooz, Zahra Dehghan,
year 1, Issue 1 (7-2014)
Abstract
Background and aim: Various scientometric indicators have been developed for quantitative and qualitative evaluation of scientific output. Each of these indicators has its own weaknesses and strengths. The study aimed at using the keywords as a qualitative evaluation instrument in research of many scholars of Medical Sciences University.
Material and methods: This study was conducted as a cross-sectional study within a 6-year period (2005-2010). The research population included all papers published by faculty members of Medical Science University of Babol who were as the first/corresponding authors with at least 2 papers and these indexed articles in periodicals published in WOS during this period. The data were collected by means of a tailor-made data collection sheet. The repeated or synonym keywords were collected from different papers of an author and were analyzed in terms of repetition for qualitative evaluation of the research of every scholar. The data were analyzed by using descriptive statistical indexes and statistical software spss version16.
Findings: During this period, 127 articles have been indexed in WoS database from researchers of this University. in 11 articles of 300 words, 21 repeated words or synonyms were used by 25 researchers who had two or more than two papers. By considering these findings, the overall ratio of articles with repetitive keywords was 16% and the proportion of repeated keywords to whole words was 7%. Statistical processing of the data using linear regression indicates an inverse relationship between the number of articles of each author and repeated keywords or synonyms in his/her articles. So, by increasing the number of articles for every author from 2 to 5, the repeated words in per article were decreased to 0/83, 0/77, 0/25 and finally zero, respectively.
Conclusion: low rate of the same keywords and synonyms in the articles of one researcher may be a sign of dispersion and lack of coordination in research activities. Therefore, regarding the coordination and concentration of the subject in scientific activities is very important in assessing the quality of research and researchers.
Fatemeh Dehghani, Mohamad Mohamadi,
year 1, Issue 2 (10-2014)
Abstract
Background and aim: The aim of this study was to determine the co-authorship condition of chemistry researchers in University of Yazd in Web of Science database.
Material and methods: This scientometric study was performed to visualize the co-authorship networks. For data description, Spss and Ravar- matrix software were used and Ucinet and Net draw software were applied to analyze the data.
Findings: The density of co-authorship network was 0.0288 and the results showed that researchers who had high frequency had strong correlations among the faculty members of Yazd University, too.
Conclusion: In general, It can be concluded that there are no many connections between relationships that constitute co-authorship network among faculty members of Yazd University and there is not a high coherence among their co-authorship networks.
Ismael Mostafavi, Mohammad Tavakolizadeh-Ravari, Maryam Azh, Somaye Dehghanisanij,
year 8, Issue 1 (5-2021)
Abstract
Background and aim: Assessing the quality of scientific outputs is part of the development measuring system of countries around the world. The aim of this study was to analyze the thematic structure of the top articles of Iranian researchers in the Web of Science (WoS) database in Web of Science database.
Materials and methods: This applied-descriptive study was performed using scientometric method. The research population was all top papers of Iranian researchers indexed in Essential Scientific Indicators (ESI) and WoS databases from 2010 to 2019. Data were analyzed using Ravar Matrix and Ucinet softwares.
Findings: Total number of Iranian top articles was 2447 of which 2428 and 114 were highly cited and hot articles published from 2010-2019, respectively. The top ranking of centrality was assigned to the keyword "nanofluid" with a closeness centrality of 53.684, betweenness centrality of 24.229 and degree centrality of 3.020%.
Conclusion: The top articles of Iranian researchers were classified into 14 thematic clusters, so that most of these articles were in the field of "engineering" and the keyword "nano" was the most important thematic keyword and the basic foundation of this study.
Mohammad Reza Dehghani Ashkezari, Mehri Mahdikhani,
year 8, Issue 1 (5-2021)
Abstract
Background and aim: Drawing the scientific maps in various fields through the study of scientific texts has always been the focus of many researchers. The purpose of this study was to investigate the research process and determine research interests in the field of brand and personal brand as well as analysis of scientometric indicators in this field based on scientific articles in the Web of Science (WoS) database.
Materials and methods: This scientometric and applied study was conducted through the network analysis of co-authorship countries and co-occurrence words using the indicators of social network analysis. The research population was all articles on the brand and personal brand, indexed in the WoS during 1985-2020. The VOSviewer and Excel were used to analyze the data.
Findings: The results showed that scientific outputs in the field of the brand started in 1990 with 1 article. Most outputs were in 2020 with 101 articles. In the co-authorship network of countries, the United States was identified as the most influential country with 164 articles, and in the co-occurrence words, out of 2707 words, the most focus and co-occurrence was on the keywords "brand" and "behavior" with 74 co-occurrences and "impact" with 77 co-occurrences.
Conclusion: Studies in this field have a good network coherence, and word density map also confirms that researchers have been able to address a variety of topics in the field of the brand.
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