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EN
Objectives: This study aimed to assess the impact of the Gross Domestic Product (GDP), spending on Research and Development (R&D), the number of universities and scientific journals on the published research documents, citable documents, citations per document and H-index in environmental sciences in the Middle East countries. Materials and Methods: All the 16 Middle East countries were included in the study. Information regarding the GDP, spending on R&D, the total number of universities and indexed journals was collected. Total number of research documents (papers), citable documents, citations per document and H-index in environmental sciences during the period 1996-2011 was recorded. The study used the World Bank, SCI-mago/Scopus, Web of Science, Journal Citation Reports (Thomson Reuters) as the main sources of information. Results: The mean GDP per capita of all the Middle East countries amounted to 18 125.49±5386.28 US$, spending on R&D was 0.63±0.28 US$, the number of universities equaled 36.56±11.33 and mean ISI indexed journals amounted to 8.25±3.93. The mean number of research documents published in environmental sciences in the Middle East countries during the period 1996-2011 was 2202.12±883.98; citable documents: 2156.87±865.09; citations per document: 8.74±0.73; and the H-index: 35.37±6.17. There was a positive correlation between the money spent on R&D and citations per documents (r = 0.6, p = 0.01), H-Index (r = 0.6, p = 0.01); the number of universities and a total of research documents (r = 0.65, p = 0.006), citable documents (r = 0.65, p = 0.006), H-Index (r = 0.50, p = 0.04), as well as ISI indexed journals and total research documents (r = 0.94, p = 0.0001), citable documents (r = 0.94, p = 0.0001), H-Index (r = 0.73, p = 0.001). Conclusions: The Middle East countries which spend more on R&D and which have a large number of universities and ISI indexed journals are likely to produce more significant volume of research papers in the field of environmental science.
EN
Objectives To compare the number and quality of public, environmental and occupational health articles published in international journals from the 3 major non-English speaking countries of East Asia: China, Japan and Korea. Material and Methods Public, environmental and occupational health articles from China, Japan and Korea that were published in 161 journals from 2003 to 2012 were retrieved from the Science Citation Index Expanded (SCIE) database. We recorded the numbers of total articles, impact factors (IF), citations, number of articles in top 10 journals, references as well as the article distribution from various regions in China. Results From 2003 to 2012, China, Japan and Korea published 5713, 3802 and 1967 papers respectively, with accumulated impact factor of 14 934.55, 8758.36 and 6189.25, the average impact factor of 2.61, 2.30 and 3.15 and the average citation numbers per document of 5.08, 6.49 and 5.25. In the top 10 high-impact public, environmental and occupational health journals, China, Japan and Korea accounted for 50.19%, 20.34% and 29.47% of all the papers published in those journals, respectively. Total impact factors of the most popular 10 papers for China, Japan and Korea were: 26.23, 27.08 and 26.91. Distribution of scientific papers among regions was unbalanced in China, for Hong Kong and Taiwan it accounted for 47.31% of the papers from China. Conclusions From 2003 to 2012, both the quality and number of papers from China published in public, environmental and occupational health journals have greatly improved. China exceeded Japan and Korea in the number, accumulated impact factor, total citation times and the average number of references, while Korea had the highest average impact factor. Japan had the highest journal impact factor among the most popular journals, and the highest average citation number per document.
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