scholarly journals An updated h-index measures both the primary and total scientific output of a researcher

Discoveries ◽  
2015 ◽  
Vol 3 (3) ◽  
pp. e50 ◽  
Author(s):  
Octavian Bucur ◽  
◽  
Alexandru Almasan ◽  
Roman Zubarev ◽  
Mark Friedman ◽  
...  
Keyword(s):  
Scientific Output ◽  
H Index

scholarly journals Scientific Production in Dentistry: The National Panorama through a Bibliometric Study of Italian Academies

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Felice Lorusso ◽  
Francesco Inchingolo ◽  
Antonio Scarano
Keyword(s):  
Scientific Research ◽  
Cost Effective ◽  
Scientific Output ◽  
Study Data ◽  
Scientific Production ◽  
National Database ◽  
H Index ◽  
Academic Researchers ◽  
Scopus Database ◽  
Dental Schools

Background. The academic scientific research in the field of dentistry has rapidly increased in the last 20 years under the pressure of the multidisciplinary technological advancements and the growing demand for new predictable and cost-effective techniques and materials. The aim of the present investigation was to analyze the academic scientific production conducted by Italian Academies and Dental Schools. Methods. The list of MED/28 academic researchers, associate and full professors, and academic affiliations was collected from the national database of CINECA to evaluate the scientific output of the Italian Universities. The complete list of scientific contributions and the bibliometric parameters were recorded in the Scopus database. Results. The scientific production of 37 Italian Universities, 416 researchers, and 23689 papers was evaluated. The measurement of total academic papers, citations, h-index, and relative citation ratio (RCR) was calculated. The study data showed an increase of the academic scientific production over the last 5 years. Conclusions. The results presented show how scientific research is increasingly pursued by dental clinicians.

scholarly journals Bibliometric Analysis of Global Research Trends on Ultrasound Microbubble: A Quickly Developing Field

2021 ◽  
Vol 12 ◽  
Author(s):  
Haiyang Wu ◽  
Linjian Tong ◽  
Yulin Wang ◽  
Hua Yan ◽  
Zhiming Sun
Keyword(s):  
Breast Cancer ◽  
United States ◽  
Drug Delivery ◽  
Hot Spots ◽  
Drug Carriers ◽  
The United States ◽  
Scientific Output ◽  
Ultrasound Diagnosis ◽  
H Index ◽  
Journal Citation Reports

Background: Microbubbles are widely used as highly effective contrast agents to improve the diagnostic capability of ultrasound imaging. Mounting evidence suggests that ultrasound coupled with microbubbles has promising therapeutic applications in cancer, cardiovascular, and neurological disorders by acting as gene or drug carriers. The aim of this study was to identify the scientific output and activity related to ultrasound microbubble through bibliometric approaches.Methods: The literature related to ultrasound microbubble published between 1998 and 2019 was identified and selected from the Science Citation Index Expanded of Web of Science Core Collection on February 21, 2021. The Scopus database was also searched to validate the results and provided as supplementary material. Quantitative variables including number of publications and citations, H-index, and journal citation reports were analyzed by using Microsoft Excel 2019 and GraphPad Prism 8.0 software. VOS viewer and CiteSpace V were used to perform coauthorship, citation, co-citation, and co-occurrence analysis for countries/regions, institutions, authors, and keywords.Results: A total of 6088 publications from the WoSCC were included. The United States has made the largest contribution in this field, with the majority of publications (2090, 34.3%), citations (90,741, 46.6%), the highest H-index (138), and close collaborations with China and Canada. The most contributive institution was the University of Toronto. Professors De Jong N and Dayton P A have made great achievements in this field. However, the research cooperation between institutions and authors was relatively weak. All the studies could be divided into four clusters: “ultrasound diagnosis study,” “microbubbles’ characteristics study,” “gene therapy study,” and “drug delivery study.” The average appearing years (AAY) of keywords in the cluster “drug delivery study” was more recent than other clusters. For promising hot spots, “doxorubicin” showed a relatively latest AAY of 2015.49, followed by “nanoparticles” and “breast cancer.”Conclusion: There has been an increasing amount of scientific output on ultrasound microbubble according to the global trends, and the United States is staying ahead in this field. Collaboration between research teams still needs to be strengthened. The focus gradually shifts from “ultrasound diagnosis study” to “drug delivery study.” It is recommended to pay attention to the latest hot spots, such as “doxorubicin,” “nanoparticles,” and “breast cancer.”

Multiple h-index: a new scientometric indicator

2015 ◽  
Vol 33 (3) ◽  
pp. 547-556 ◽  
Author(s):  
Mousa Yaminfirooz ◽  
Hemmat Gholinia
Keyword(s):  
Correlation Coefficients ◽  
Coefficient Matrix ◽  
Scientific Output ◽  
The Other ◽  
Scientometric Indicator ◽  
Scientific Impact ◽  
H Index ◽  
Content Type ◽  
Explained Variance ◽  
Correlation Coefficient Matrix

Purpose – This paper aims to evaluate some of the known scientific indexes by using virtual data and proposes a new index, named multiple h-index (mh-index), for removing the limits of these variants. Design/methodology/approach – Citation report for 40 researchers in Babol, Iran, was extracted from the Web of Science and entered in a checklist together with their scientific lifetimes and published ages of their papers. Some statistical analyses, especially exploratory factor analysis (EFA) and structural correlations, were done in SPSS 19. Findings – EFA revealed three factors with eigenvalues greater than 1 and explained variance of over 96 per cent in the studied indexes, including the mh-index. Factors 1, 2 and 3 explained 44.38, 28.19 and 23.48 of the variance in the correlation coefficient matrix, respectively. The m-index (with coefficient of 90 per cent) in Factor 1, a-index (with coefficient of 91 per cent) in Factor 2 and h- and h2-indexes (with coefficients of 93 per cent) in Factor 3 had the highest factor loadings. Correlation coefficients and related comparative diagrams showed that the mh-index is more accurate than the other nine variants in differentiating the scientific impact of researchers with the same h-index. Originality/value – As the studied variants could not satisfy all limits of the h-index, scientific society needs an index which accurately evaluates individual researcher’s scientific output. As the mh-index has some advantages over the other studied variants, it can be an appropriate alternative for them.

scholarly journals Global Research Trends of Ferroptosis: A Rapidly Evolving Field With Enormous Potential

2021 ◽  
Vol 9 ◽  
Author(s):  
Haiyang Wu ◽  
Yulin Wang ◽  
Linjian Tong ◽  
Hua Yan ◽  
Zhiming Sun
Keyword(s):  
United States ◽  
Cell Death ◽  
Photodynamic Therapy ◽  
Nuclear Factor Κb ◽  
The United States ◽  
Scientific Output ◽  
Global Perspective ◽  
Research Progress ◽  
H Index ◽  
Number Of Publications

Background: Ferroptosis is a newly proposed form of programmed cell death, and accumulating evidence suggests that it plays an essential role in the development of multiple diseases, especially cancers and neurodegenerative diseases. Since officially named in 2012, research on ferroptosis has grown rapidly. There are previous reviews focused on the research progress of ferroptosis from a certain aspect, but no bibliometric studies summarizing this field as a whole. This study aimed to assess the scientific output and activity regarding ferroptosis research from a global perspective.Methods: Publications related to ferroptosis from 2012 to 2020 were identified and selected from the Web of Science Core Collection. Excel 2019 and GraphPad Prism 8.0 was used to analyze quantitative variables including number of publications and citations, H-index, and journal citation reports. VOS viewer and CiteSpace were used to perform co-authorship, co-citation, and co-occurrence analysis of countries/institutes/authors/keywords.Results: A total of 1,285 publications on ferroptosis research were identified. The literature on ferroptosis had been continuously growing since 2012, and the expansion might continue at a rapid pace in the following years. China contributed the greatest proportion (43.74%) of ferroptosis publications, and the United States ranked first in the number of citation frequency (20,980 times) and H-index (70). B. R. Stockwell, D. L. Tang, and R. Kang were key researchers. The journal Cell Death Disease published the highest number of articles, with 42 articles. All the keywords could be divided into two clusters: cluster 1 (pathway and mechanism) and cluster 2 (treatment and effect). In terms of potential hotspots, keywords with the strong bursts and still ongoing recently were “neurodegeneration” (2017–2020), “chemotherapy” (2017–2020), “NF-kappa B” (2017–2020), and “photodynamic therapy” (2018–2020).Conclusion: There will be a dramatically increasing number of publications on ferroptosis research based on the current global trends. China has made significant progress in ferroptosis research, but the United States is actually dominated in this field. More focus will be placed on neurodegeneration, chemotherapy, nuclear factor κB, and photodynamic therapy, which may be the next popular topics in ferroptosis research.

Global research productivity of N-acetylcysteine use in paracetamol overdose

2015 ◽  
Vol 34 (10) ◽  
pp. 1006-1016 ◽  
Author(s):  
SH Zyoud ◽  
SW Al-Jabi ◽  
WM Sweileh ◽  
R Awang ◽  
WS Waring
Keyword(s):  
Research Productivity ◽  
Research Output ◽  
The United States ◽  
Scientific Output ◽  
Paracetamol Overdose ◽  
Research Activity ◽  
H Index ◽  
The United Kingdom ◽  
Number Of Citations ◽  
Bibliometric Studies

Purpose: The main objective of this study was to examine the publication pattern of N-acetylcysteine (NAC) research output for paracetamol overdose at the global level. Methods: Data were searched for documents that contained specific words regarding NAC and paracetamol as keywords in the title and/or abstract and/or keywords. Scientific output was evaluated based on a methodology developed and used in other bibliometric studies. Research productivity was adjusted to the national population and nominal gross domestic product per capita. Results: The criteria were met by 367 publications from 33 countries. The highest number of articles associated with the use of NAC in paracetamol overdose was from the United States of America (USA; 39.78%), followed by the United Kingdom (UK; 11.99%). After adjusting for economy and population power, USA (2.822), Iran (1.784) and UK (1.125) had the highest research productivity. The total number of citations at the time of data analysis (14 March 2014) was 8785 with an average of 23.9 citations per document and a median (interquartile range) of 6 (1–22). The h-index of the retrieved documents was 48. The highest h-index was 32 for USA, followed by 20 for UK. Furthermore, the highest number of collaborations with international authors for each country was held by USA with 11 countries, followed by Canada with 7 countries. Conclusion: The amount of NAC-based research activity was low in some countries, and more effort is needed to bridge this gap and to promote better evaluation of NAC use worldwide. Our findings demonstrate that NAC use for paracetamol overdose remains a hot issue in scientific research and may have a larger audience compared with other toxicological aspects. Editors and authors in the field of toxicology might usefully promote the submission of work on NAC in future to improve their journal’s impact.

scholarly journals Visualizing the Citation Analysis of Scholarly Communication of Ayurveda Research During 1923-2018: An Exploratory Study

2020 ◽  
Vol 8 (1) ◽  
pp. 15-23
Author(s):  
Manuelraj Peter ◽  
Mohamed Idhris ◽  
Spurgeon Anandraj
Keyword(s):  
Research And Development ◽  
Citation Analysis ◽  
Exploratory Study ◽  
Scholarly Communication ◽  
Scientific Output ◽  
Scientometric Analysis ◽  
Research Papers ◽  
H Index ◽  
The World ◽  
Scopus Database

The study aims to present a Scientometric analysis of scientific output of the Ayurveda research indexed to Scopus Database, In last two decades the ayurvedic studies clearly show the improvement in scientific research and development throughout the world, and the most of the ayurvedic research outputs are written by Indian authors and collaborated widely throughout different countries researchers. It is clearly showing that Ayurvedic research is well developed in India and significantly improved over the last two decades. This study was conducted from the data indexed from 1923 to 2018 in the multidisciplinary SCOPUS database. The analysis included analyzing total publishing patterns in terms of total articles, productive countries, organizations, Journals, productive writers, most cited articles along with citation and h-index effects. During the study period, the SCOPUS database published 2038 papers. Such papers have been further reviewed to explain findings. The main purpose of the study is to explain India’s position in publishing top Ayurvedic research papers.

scholarly journals Comparative Analysis of the Algorithm for Calculating the h-Index and Its Modifications

2020 ◽  
Vol 15 (3) ◽  
pp. 331-355
Author(s):  
Petr Gerasimenko
Keyword(s):  
Comparative Analysis ◽  
Scientific Output ◽  
Formal Logic ◽  
Publication Activity ◽  
Index Procedure ◽  
Main Method ◽  
H Index ◽  
Starting Point ◽  
The Difference

Introduction. The article presents a comparative analysis of existing algorithms for calculating the h-index and a number of its modifications that use the same basic idea or make use of its algorithm as the starting point. What makes the study relevant is the significant demand for a better approach to assessing the publication activity of researchers over the existing h-index algorithm. Methods. The study looks at the following 7 indexes that assess a researcher’s scientific output: h-index; g-index (by Leo Egghe); j-index (the Mikhailov index); gh-index; hp-index; ghp-index; w-index. The main method used in the study is analysis; other formal logic methods that were also used in the study include synthesis, classification, deduction, and induction. Results and Discussion. The quantitative and qualitative indicators proposed in the article were used to carry out the compar-ative analysis of the algorithms behind all of the aforementioned indexes. One common feature of all these algorithms is that they all rely on the basic h-index procedure, while the difference is the degree to which each index takes into account all the publications and citations of a specific researcher. It was established that only the algorithms used in the gh-, hp-, and ghp-indexes take into account the entire set of a given author’s publications. Meanwhile, the gh-index should best be regarded as an index of basic publications (it establishes the significance of the researcher’s publications), while the hp-index is best viewed as a measure of the intensity of the researcher’s work. As far as the ghp-index is concerned, it should only be used in situations in which the gh- or hp-indexes produce the same results. Amongst the algorithms for all the indexes reviewed in the article, the ones that best reflect a researcher’s achievements are the gh-, hp-, and ghp-indexes, but they are somewhat more complex than the h-, g- и j-indexes. Conclusion. The analysis we carried out should make it possible to select the best algorithm depending on the complexity of the distribution of citations of published papers in order to achieve the desired level of assessment of a researcher’s publications.

The H-index in Life and Health Sciences: Advantages, Drawbacks and Challenging Opportunities

2019 ◽  
Vol 11 (2) ◽  
pp. 82-84 ◽  
Author(s):  
Ricardo Jorge Dinis-Oliveira
Keyword(s):  
Estimation Method ◽  
Health Sciences ◽  
Scientific Output ◽  
Scientific Publications ◽  
Simple Modification ◽  
H Index ◽  
Number Of Publications ◽  
Number Of Citations ◽  
Scientific Achievements

In recent years, there has been a significant increase in the number of scientific publications. The h-index offers a consistent estimation method about a researcher’s overall scientific achievements since it combines the total number of publications (i.e., productivity) and the number of citations (i.e., quality of those publications). In other words, the h-index is intended to measure simultaneously the quality and quantity of scientific output in a cumulative approach and does not provide data regarding the recent productivity. This editorial presents advantages and limitations of h-index that all researchers in health sciences need to be aware of, especially if this metric is used for professional progression, and discusses the simple modification indexed to “academic/scientific age”. It is obvious that no single metric is perfect, and the use of two or more metrics is more prone to success.

On Theory And Application Of Hirsch-Type Indexes

2013 ◽  
Author(s):  
Wolfgang Glänzel
Keyword(s):  
Scientific Output ◽  
Bibliometric Indicators ◽  
Scientific Performance ◽  
Rank Statistics ◽  
H Index

In 2005, J.E. Hirsch proposed a new measure "to quantify an individual's scientific output". He called his measure, which is based on individual citation rank statistics, h-index. It was shown that the h-index correlates with other bibliometric indicators of ‘significance’ but it was also stressed that scientific performance can hardly…En 2005, J.E. Hirsch proposait une nouvelle mesure « pour quantifier la production scientifique individuelle ». Il appelait cette mesure, basée sur un classement statistique de citations personnelles, la h index. Il a été démonté que la h-index peut être mis en corrélation avec d’autres indicateurs bibliométriques « significatifs », mais il a également été souligné que la performance scientifique peut… 

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