Worldwide research productivity in nuclear medicine literature

2018 ◽  
Vol 57 (06) ◽  
pp. 234-241
Author(s):  
Jixiao Lei ◽  
Peng Yu ◽  
Baixuan Xu ◽  
Ruimin Wang ◽  
Zhihui Shen ◽  
...  
Keyword(s):  
United States ◽  
Nuclear Medicine ◽  
The Netherlands ◽  
Population Size ◽  
Research Productivity ◽  
The United States ◽  
Research Activity ◽  
Medicine Research ◽  
Increasing Trend

Summary Aim: This study aimed to assess the quantity and quality of papers published in subspecialty nuclear medicine journals and provide an overview of worldwide research activity carried out in the field of nuclear medicine. Methods: Papers published in subspecialty nuclear medicine journals between 2008 and 2017 were retrieved from the Web of Science. The number of papers and citations were used to evaluate the quantity and quality of the articles. The correlation between the research productivity of different countries and their population size and gross domestic product (GDP) were analyzed. Results: There were 12,861 articles published in these journals between 2008 and 2017. A rapidly increasing trend was observed in the number of articles published per year (p < 0.001). The United States published the largest proportion of papers (23.22 %) followed by Germany (9.94 %), Japan (9.46 %), Italy (6.53 %), and China (6.36 %). The United States had the highest number of total citations. The number of articles from different countries had a significant correlation with their population size and GDP (p < 0.01). Switzerland had the highest mean citations (23.66) followed by the Netherlands (23.54), and Germany (22.77). However, the Netherlands was first (42.43) followed by Denmark (32.89) and Switzerland (31.79) when adjustments for population size were made. When adjustments for GDP were made, the Netherlands was again the leader (82.91) followed by Denmark (69.49) and Greece (61.77). Conclusions: There has been a significant increase in nuclear medicine research over the last decade. The United States is the leader of worldwide research productivity. However, when population and GDP are taken into consideration, certain smaller countries in Europe exhibit performed better.

scholarly journals Research Productivity of Chinese Young Thousand Talents

2019 ◽  
pp. 17-18 ◽  
Author(s):  
Lili Yang ◽  
Giulio Marini
Keyword(s):  
United States ◽  
Research Productivity ◽  
Research Performance ◽  
Research Capacity ◽  
The United States ◽  
Similar Rate ◽  
Assessment System ◽  
Better Than

While it is commonly agreed that globally bred talent returning to China greatly contributes to the enhancement of research capacity, whether returnees perform better than those who stay overseas remains to be examined. We compared the research productivity of Chinese “Young Thousand Talents” (Y1000Ts) and Chinese researchers remaining in the United States. The results of our analysis demonstrate that while the two groups publish at a similar rate, Y1000T lag slightly behind their US-affiliated counterparts in terms of quality of publications. This could be explained by the assessment system of research performance in China.

scholarly journals Population Size and Growth in Pakistan Based on Early Reports of 1972 Census

1976 ◽  
Vol 15 (3) ◽  
pp. 290-318 ◽  
Author(s):  
Karol J. Krotki ◽  
Khalida Parveen
Keyword(s):  
United States ◽  
Population Size ◽  
Census Data ◽  
Primary Source ◽  
The United States ◽  
Popu Lation ◽  
The Government ◽  
Technical Capacity ◽  
Source Of Information

Census reports are the primary source of information on population chara¬cteristics. Fundamental among these characteristics are population size and growth, but census reports are often used to evaluate other features of a popu¬lation such as reliability of age reporting, extent of literacy, adequacy of occupational reporting, and level and pattern of unemployment. In this paper, we take a preliminary look at the 1972 Census of Pakistan in order to deter¬mine its overall suitability as a source of information on population of the country. The quality of census data depends not only on the technical capacity of the statistical arm of the government, but on the characteristics of the society as well. For example, even the advanced statistical and survey technology available in the United States is inadequate to deal with the more volatile nature of society. Near completeness of coverage is achieved only in a few countries such as Holland, Denmark and Switzerland, with high degrees of social cohesion1 and where population censuses are kept in close administrative check.

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