Purpose: The aim of this article is to explore up to seven parameters related to the methodological quality and reproducibility of thematic bibliometric research published in the two most productive journals in biblio...Purpose: The aim of this article is to explore up to seven parameters related to the methodological quality and reproducibility of thematic bibliometric research published in the two most productive journals in bibliometrics, Sustainability(a journal outside the discipline) and Scientometrics, the flagship journal in the field.Design/methodology/approach: The study identifies the need for developing tailored tools for improving the quality of thematic bibliometric analyses, and presents a framework that can guide the development of such tools. A total of 508 papers are analysed, 77% of Sustainability, and 23% published in Scientometrics, for the 2019-2021 period.Findings: An average of 2.6 shortcomings per paper was found for the whole sample, with an almost identical number of flaws in both journals. Sustainability has more flaws than Scientometrics in four of the seven parameters studied, while Scientometrics has more shortcomings in the remaining three variables.Research limitations: The first limitation of this work is that it is a study of two scientific journals, so the results cannot be directly extrapolated to the set of thematic bibliometric analyses published in journals from all fields.Practical implications: We propose the adoption of protocols, guidelines, and other similar tools, adapted to bibliometric practice, which could increase the thoroughness, transparency, and reproducibility of this type of research.Originality/value: These results show considerable room for improvement in terms of the adequate use and breakdown of methodological procedures in thematic bibliometric research, both in journals in the Information Science area and journals outside the discipline.展开更多
On June 23-25,2023,The 14th National Conference of Chinese Society for Scientometrics and Informetrics(CSSI)was successfully held in Taiyuan,Shanxi Province.The meeting was hosted by Chinese Society for Scientometrics...On June 23-25,2023,The 14th National Conference of Chinese Society for Scientometrics and Informetrics(CSSI)was successfully held in Taiyuan,Shanxi Province.The meeting was hosted by Chinese Society for Scientometrics and Informetrics(CSSI)、Chinese Academy of Science and Education Evaluation(CASEE)and Academy of Data Science and Informetrics(ADSI)of Hangzhou Dianzi University、Research Center for Chinese Science Evaluation(RCCSE)of Wuhan University and co-organized by School of Management of Shanxi Medical University.More than 1000 participants virtually and over 250 participants physically attended the conference.展开更多
A network is a set of nodes connected via edges,with possibly directions and weights on the edges.Sometimes,in a multi-layer network,the nodes can also be heterogeneous.In this perspective,based on previous studies,we...A network is a set of nodes connected via edges,with possibly directions and weights on the edges.Sometimes,in a multi-layer network,the nodes can also be heterogeneous.In this perspective,based on previous studies,we argue that networks can be regarded as the infrastructure of scientometrics in the sense that networks can be used to represent scientometric data.Then the task of answering various scientometric questions related to this data becomes an algorithmic problem in the corresponding network.展开更多
Call for PapersThe Organizing Committee would like to invite participants to submit to the 16th International Society of Scientometrics and Informetrics Conference that will be held in Wuhan, China (http://www.issi2...Call for PapersThe Organizing Committee would like to invite participants to submit to the 16th International Society of Scientometrics and Informetrics Conference that will be held in Wuhan, China (http://www.issi2017.org). The ISSI 2017 Conference will provide an international forum for scientists, research managers and administrators, as well as information and communication related professionals to share research and debate the advancements of informetric and scientometric theory and applica- tions. The conference is organized under the auspices of ISSI - the International Society for Informetrics and Scientometrics (http://www.issi-society.org/). Paper submission: https://easychair.org/conferences/?conf=issi2017.展开更多
On September 23-25,2022,The 13th National Conference of Chinese Society for Scientometrics and Informetrics(CSSI)was successfully held in Zhen Zhou,Henan Province.The meeting was hosted by Chinese Society for Scientom...On September 23-25,2022,The 13th National Conference of Chinese Society for Scientometrics and Informetrics(CSSI)was successfully held in Zhen Zhou,Henan Province.The meeting was hosted by Chinese Society for Scientometrics and Informetrics(CSSI)、Chinese Academy of Science and Education Evaluation(CASEE)and Academy of Data Science and Informetrics(ADSI)of Hangzhou Dianzi University、Research Center for Chinese Science Evaluation(RCCSE)of Wuhan University and co-organized by School of Information Management of Zhengzhou University and Zhengzhou Data Science Research Center.展开更多
With the enhancement of environmental protection awareness of the international community and the continuous promotion of green and sustainable development of manufacturing industry,water lubrication instead of minera...With the enhancement of environmental protection awareness of the international community and the continuous promotion of green and sustainable development of manufacturing industry,water lubrication instead of mineral oil has become the future development trend due to its green,pollution-free,clean,safe,and sustainable advantages especially in ships,marine,coal mining,and other fields.In recent years,with the rapid development of water lubrication research,significant progress has been made in related research knowledge domain and discipline.A systematic and extensive assessment of water lubrication research has become increasingly important.The objective of this research is to reveal the research status,research hotspots,and development trends in the field of water lubrication.Therefore,CiteSpace was used to conduct a systematic bibliometric and scientometrical analysis of 1,792 publications from Web of Science core collection database(1997–2021).The results show that China and USA are the most productive countries in the field of water lubrication and have made outstanding contributions.Through the analysis of hot key words and co-citation references,this paper reviews the research status of water lubrication in three aspects:(1)lubricating medium modification;(2)material preparation;(3)surface optimization.It has become a research hotspot to promote the superlubricity contact interface and the application of nanotechnology.The results of this study can make a significant contribution to the development of water lubrication by providing a comprehensive understanding of the research status and research hotspots in this field.Personal understanding and discussion of research hotspots and research status are expected to provide insights into future research trends.In addition,this study will provide valuable references and guidelines for researchers who are interested in this field.展开更多
In this editorial,we comment on the article entitled“Advances and key focus areas in gastric cancer immunotherapy:A comprehensive scientometric and clinical trial review(1999-2023),”which was published in the recent...In this editorial,we comment on the article entitled“Advances and key focus areas in gastric cancer immunotherapy:A comprehensive scientometric and clinical trial review(1999-2023),”which was published in the recent issue of the World Journal of Gastroenterology.We focused on the results of the authors’bibliometric analysis concerning gastric cancer immunotherapy,which they analyzed in depth by compiling the relevant publications of the last 20 years.Before that,we briefly describe the most recent data concerning the epidemiological parameters of gastric cancer(GC)in different countries,attempting to give an interpretation based on the etiological factors involved in the etiopathogenesis of the neoplasm.We then briefly discuss the conservative treatment(chemotherapy)of the various forms of this malignant neoplasm.We describe the treatment of resectable tumors,locally advanced neoplasms,and unresectable(advanced)cases.Special attention is given to modern therapeutic approaches with emphasis on immunotherapy,which seems to be the future of GC treatment,especially in combination with chemotherapy.There is also a thorough analysis of the results of the study under review in terms of the number of scientific publications,the countries in which the studies were conducted,the authors,and the scientific centers of origin,as well as the clinical studies in progress.Finally,an attempt is made to draw some conclusions and to point out possible future directions.展开更多
Background:Recently,ultra-processed foods(UPFs)have attracted considerable attention,leading to numerous studies worldwide.Scientometrics is currently gaining popularity among scientific communities,offering advantage...Background:Recently,ultra-processed foods(UPFs)have attracted considerable attention,leading to numerous studies worldwide.Scientometrics is currently gaining popularity among scientific communities,offering advantage of providing critical references to scholars of specific fields.Methods:This scientometric study aimed to analyze trends and hotspots of UPF research using English articles or reviews related to UPFs retrieved from the Web of Science Core Collection on March 5,2023.Two independent researchers selected the identified records on titles,abstracts,and author’s keywords,and the data were analyzed using R-bibliometrix,CiteSpace,and VOSviewer.Results:A total of 1018 publications(901 articles and 117 reviews)published from 2010 to 2023 were included.The result showed a significant increase in UPF publications over the past decades.Brazil published the highest number of papers(n=473),with over half of the top 10 active institutions were located in Brazil.The University of São Paulo contributed the most publications(n=206)and the 10 most productive authors belonged to this institution,with Monteiro CA and Levy RB contributing the most publications.The main research foundations included the NOVA system,the definition of UPFs,the prevalence of UPFs,and the impact of UPFs on dietary quality and health status.The main research frontiers included topics such as“systematic review,”“NOVA food classification,”“COVID-19,”“diabetes,”“pregnancy,”“food addiction,”“warning labels,”“plant-based diet,”and“commercial determinants of health”.Conclusions:This study provided a comprehensive overview of development trends and research hotspots of global UPF studies.展开更多
Collaborative research causes problems for research assessments because of the difficulty in fairly crediting its authors.Whilst splitting the rewards for an article amongst its authors has the greatest surface-level ...Collaborative research causes problems for research assessments because of the difficulty in fairly crediting its authors.Whilst splitting the rewards for an article amongst its authors has the greatest surface-level fairness,many important evaluations assign full credit to each author,irrespective of team size.The underlying rationales for this are labour reduction and the need to incentivise collaborative work because it is necessary to solve many important societal problems.This article assesses whether full counting changes results compared to fractional counting in the case of the UK’s Research Excellence Framework(REF)2021.For this assessment,fractional counting reduces the number of journal articles to as little as 10%of the full counting value,depending on the Unit of Assessment(UoA).Despite this large difference,allocating an overall grade point average(GPA)based on full counting or fractional counting gives results with a median Pearson correlation within UoAs of 0.98.The largest changes are for Archaeology(r=0.84)and Physics(r=0.88).There is a weak tendency for higher scoring institutions to lose from fractional counting,with the loss being statistically significant in 5 of the 34 UoAs.Thus,whilst the apparent over-weighting of contributions to collaboratively authored outputs does not seem too problematic from a fairness perspective overall,it may be worth examining in the few UoAs in which it makes the most difference.展开更多
In this opinion paper, we introduce the expressions of dominant terminology and dominant term in the quantitative studies of science in analogy to the notion of dominant design in product development and innovation.
BACKGROUND The United States has witnessed significant advancements in the field of organ transplantation over the course of the last five decades,as demonstrated by a notable increase in the quantity of academic rese...BACKGROUND The United States has witnessed significant advancements in the field of organ transplantation over the course of the last five decades,as demonstrated by a notable increase in the quantity of academic research.The presence of a highly dynamic research environment necessitates continuous evaluations to maintain the integrity and progress of the field.AIM To evaluate the total output and thematic emphasis of transplant research conducted in the United States.METHODS On January 10,2023,we conducted a bibliometric search of United States research output in transplantation journals from the Web of Science database's Science Citation Index Expanded.We excluded editorials,meeting abstracts,and other non-article types.We analyzed annual trends,authors,institutions,articles,keywords,and countries collaborating with the United States,using VOSviewer 1.6.18 to create figures and tables.RESULTS The United States published 25956 papers(3078 reviews and 22878 articles)representing 37.7%of the world's scientific output.Canada emerged as the top collaborator with the United States,co-authoring 1263 articles.Leading institutions in United States transplantation research were the University of Pittsburgh(1749 articles),Mayo Clinic(1605 articles),Harvard Medical School(1549 articles),and Johns Hopkins University(1280 articles).The top three keywords with over 2000 occurrences were"recipients,""survival,"and"outcomes,"indicating a focus on graft and recipient outcome markers by United States researchers.CONCLUSION Our findings demonstrate the United States leadership in organ transplantation research,contributing significantly to the global scientific output in this field.However,opportunities exist for fostering expansive partnerships,particularly with developing countries.This study provides valuable insights into the transplantation research landscape in the United States,emphasizing the importance of ongoing evaluations to maintain and propel advancements in this critical medical discipline.The results may facilitate future collaborations,knowledge exchange,and the pursuit of innovative solutions in the realm of organ transplantation.展开更多
BACKGROUND Gastric cancer(GC)is the sixth most common cancer and third leading cause of cancer-related deaths worldwide.Current treatments mainly rely on surgery-and chemotherapy-based systemic;however,the prognosis r...BACKGROUND Gastric cancer(GC)is the sixth most common cancer and third leading cause of cancer-related deaths worldwide.Current treatments mainly rely on surgery-and chemotherapy-based systemic;however,the prognosis remains poor for advanced disease.Recent studies have suggested that immunotherapy has significant potential in cancer therapy;thus,GC immunotherapy may improve quality of life and survival for patients with this disease.AIM To provide a comprehensive overview of the knowledge structure and research hotspots of GC immunotherapy.METHODS We conducted a bibliometric analysis of publications on immunotherapy related to GC in the Web of Science Core Collection database.We analyzed 2013 publications from 1999 to February 1,2023,using the VOSviewer and CiteSpace software.We assessed publication and citation distributions using the WoS platform and explored research countries,institutions,journals,authors,references,and keywords(co-occurrence,timeline view,and burst analysis).In addition,we examined 228 trials on immunotherapy,137 on adoptive cell therapy,274 on immune checkpoint inhibitors(ICIs),and 23 on vaccines from ClinicalTrials.gov and the International Clinical Trials Registry Platform.The Impact Index Per Article for the top ten high-cited papers collected from Reference Citation Analysis(RCA)are presented.RESULTS Our bibliometric analysis revealed that the study of immunotherapy in GC has developed rapidly in recent years.China accounted for almost half the publications,followed by the United States.The number of publications in recent years has been growing continuously,and most institutions and authors with the most publications are from China.The main keywords or clusters identified were“tumor microenvironment”,“adoptive immunotherapy”,“dendritic therapy”,and“microsatellite instability”.CONCLUSION Our analysis of 2013 publications indicated that immunotherapy for GC has led to several new developments in recent years.Considerable progress has been made in vaccinations,immune checkpoint therapy,and adoptive cellular therapy.In particular,ICIs and chimeric antigen receptor T-cells are novel options for the treatment of GC.We suggest that the combination of ICIs,chemotherapy,targeted therapy,and other immunotherapies should be the primary research direction in the future.展开更多
“国际科学计量学和信息计量学学会”(International Society for Scientometrics and Informetrics,简称ISSI)是文献计量学、信息计量学、科学计量学、技术计量学、网络计量学等领域最高级别的国际专业学会,其两年一次的大会是相...“国际科学计量学和信息计量学学会”(International Society for Scientometrics and Informetrics,简称ISSI)是文献计量学、信息计量学、科学计量学、技术计量学、网络计量学等领域最高级别的国际专业学会,其两年一次的大会是相关领域学术水平最高、影响最大的国际会议。如果获得大会的主办权,则表明主办国家及单位的计量学研究水平和实力达到或接近国际水平,展开更多
Purpose: The purpose of this study is to modernize previous work on science overlay maps by updating the underlying citation matrix, generating new clusters of scientific disciplines, enhancing visualizations, and pr...Purpose: The purpose of this study is to modernize previous work on science overlay maps by updating the underlying citation matrix, generating new clusters of scientific disciplines, enhancing visualizations, and providing more accessible means for analysts to generate their own maps Design/methodology/approach: We use the combined set of 2015 Journal Citation Reports for the Science Citation Index (n of journals = 8,778) and the Social Sciences Citation Index (n = 3,212) for a total of 11,365 journals. The set of Web of Science Categories in the Science Citation Index and the Social Sciences Citation Index increased from 224 in 2010 to 227 in 2015. Using dedicated software, a matrix of 227 × 227 cells is generated on the basis of whole-number citation counting. We normalize this matrix using the cosine function. We first develop the citing-side, cosine-normalized map using 2015 data and VOSviewer visualization with default parameter values. A routine for making overlays on the basis of the map ("wc 15.exe") is available at http://www.leydesdorff.net/wc 15/index.htm. Findings: Findings appear in the form of visuals throughout the manuscript. In Figures 1 9 we provide basemaps of science and science overlay maps for a number of companies, universities, and technologies. Research limitations: As Web of Science Categories change and/or are updated so is the need to update the routine we provide. Also, to apply the routine we provide users need access to the Web of Science. Practical implications: Visualization of science overlay maps is now more accurate and true to the 2015 Journal Citation Reports than was the case with the previous version of the routine advanced in our paper.Originality/value: The routine we advance allows users to visualize science overlay maps in VOSviewer using data from more recent Journal Citation Reports.展开更多
文摘Purpose: The aim of this article is to explore up to seven parameters related to the methodological quality and reproducibility of thematic bibliometric research published in the two most productive journals in bibliometrics, Sustainability(a journal outside the discipline) and Scientometrics, the flagship journal in the field.Design/methodology/approach: The study identifies the need for developing tailored tools for improving the quality of thematic bibliometric analyses, and presents a framework that can guide the development of such tools. A total of 508 papers are analysed, 77% of Sustainability, and 23% published in Scientometrics, for the 2019-2021 period.Findings: An average of 2.6 shortcomings per paper was found for the whole sample, with an almost identical number of flaws in both journals. Sustainability has more flaws than Scientometrics in four of the seven parameters studied, while Scientometrics has more shortcomings in the remaining three variables.Research limitations: The first limitation of this work is that it is a study of two scientific journals, so the results cannot be directly extrapolated to the set of thematic bibliometric analyses published in journals from all fields.Practical implications: We propose the adoption of protocols, guidelines, and other similar tools, adapted to bibliometric practice, which could increase the thoroughness, transparency, and reproducibility of this type of research.Originality/value: These results show considerable room for improvement in terms of the adequate use and breakdown of methodological procedures in thematic bibliometric research, both in journals in the Information Science area and journals outside the discipline.
文摘On June 23-25,2023,The 14th National Conference of Chinese Society for Scientometrics and Informetrics(CSSI)was successfully held in Taiyuan,Shanxi Province.The meeting was hosted by Chinese Society for Scientometrics and Informetrics(CSSI)、Chinese Academy of Science and Education Evaluation(CASEE)and Academy of Data Science and Informetrics(ADSI)of Hangzhou Dianzi University、Research Center for Chinese Science Evaluation(RCCSE)of Wuhan University and co-organized by School of Management of Shanxi Medical University.More than 1000 participants virtually and over 250 participants physically attended the conference.
文摘A network is a set of nodes connected via edges,with possibly directions and weights on the edges.Sometimes,in a multi-layer network,the nodes can also be heterogeneous.In this perspective,based on previous studies,we argue that networks can be regarded as the infrastructure of scientometrics in the sense that networks can be used to represent scientometric data.Then the task of answering various scientometric questions related to this data becomes an algorithmic problem in the corresponding network.
文摘Call for PapersThe Organizing Committee would like to invite participants to submit to the 16th International Society of Scientometrics and Informetrics Conference that will be held in Wuhan, China (http://www.issi2017.org). The ISSI 2017 Conference will provide an international forum for scientists, research managers and administrators, as well as information and communication related professionals to share research and debate the advancements of informetric and scientometric theory and applica- tions. The conference is organized under the auspices of ISSI - the International Society for Informetrics and Scientometrics (http://www.issi-society.org/). Paper submission: https://easychair.org/conferences/?conf=issi2017.
文摘On September 23-25,2022,The 13th National Conference of Chinese Society for Scientometrics and Informetrics(CSSI)was successfully held in Zhen Zhou,Henan Province.The meeting was hosted by Chinese Society for Scientometrics and Informetrics(CSSI)、Chinese Academy of Science and Education Evaluation(CASEE)and Academy of Data Science and Informetrics(ADSI)of Hangzhou Dianzi University、Research Center for Chinese Science Evaluation(RCCSE)of Wuhan University and co-organized by School of Information Management of Zhengzhou University and Zhengzhou Data Science Research Center.
基金supported by the National Natural Science Foundation of China(52075192,52122502,and 52235001)China Coal Science and Technology Innovation and Entrepreneurship Fund(2019-TD-2-CXY005)A-class pilot of the Chinese Academy of Sciences(XDA22010303).
文摘With the enhancement of environmental protection awareness of the international community and the continuous promotion of green and sustainable development of manufacturing industry,water lubrication instead of mineral oil has become the future development trend due to its green,pollution-free,clean,safe,and sustainable advantages especially in ships,marine,coal mining,and other fields.In recent years,with the rapid development of water lubrication research,significant progress has been made in related research knowledge domain and discipline.A systematic and extensive assessment of water lubrication research has become increasingly important.The objective of this research is to reveal the research status,research hotspots,and development trends in the field of water lubrication.Therefore,CiteSpace was used to conduct a systematic bibliometric and scientometrical analysis of 1,792 publications from Web of Science core collection database(1997–2021).The results show that China and USA are the most productive countries in the field of water lubrication and have made outstanding contributions.Through the analysis of hot key words and co-citation references,this paper reviews the research status of water lubrication in three aspects:(1)lubricating medium modification;(2)material preparation;(3)surface optimization.It has become a research hotspot to promote the superlubricity contact interface and the application of nanotechnology.The results of this study can make a significant contribution to the development of water lubrication by providing a comprehensive understanding of the research status and research hotspots in this field.Personal understanding and discussion of research hotspots and research status are expected to provide insights into future research trends.In addition,this study will provide valuable references and guidelines for researchers who are interested in this field.
文摘In this editorial,we comment on the article entitled“Advances and key focus areas in gastric cancer immunotherapy:A comprehensive scientometric and clinical trial review(1999-2023),”which was published in the recent issue of the World Journal of Gastroenterology.We focused on the results of the authors’bibliometric analysis concerning gastric cancer immunotherapy,which they analyzed in depth by compiling the relevant publications of the last 20 years.Before that,we briefly describe the most recent data concerning the epidemiological parameters of gastric cancer(GC)in different countries,attempting to give an interpretation based on the etiological factors involved in the etiopathogenesis of the neoplasm.We then briefly discuss the conservative treatment(chemotherapy)of the various forms of this malignant neoplasm.We describe the treatment of resectable tumors,locally advanced neoplasms,and unresectable(advanced)cases.Special attention is given to modern therapeutic approaches with emphasis on immunotherapy,which seems to be the future of GC treatment,especially in combination with chemotherapy.There is also a thorough analysis of the results of the study under review in terms of the number of scientific publications,the countries in which the studies were conducted,the authors,and the scientific centers of origin,as well as the clinical studies in progress.Finally,an attempt is made to draw some conclusions and to point out possible future directions.
文摘Background:Recently,ultra-processed foods(UPFs)have attracted considerable attention,leading to numerous studies worldwide.Scientometrics is currently gaining popularity among scientific communities,offering advantage of providing critical references to scholars of specific fields.Methods:This scientometric study aimed to analyze trends and hotspots of UPF research using English articles or reviews related to UPFs retrieved from the Web of Science Core Collection on March 5,2023.Two independent researchers selected the identified records on titles,abstracts,and author’s keywords,and the data were analyzed using R-bibliometrix,CiteSpace,and VOSviewer.Results:A total of 1018 publications(901 articles and 117 reviews)published from 2010 to 2023 were included.The result showed a significant increase in UPF publications over the past decades.Brazil published the highest number of papers(n=473),with over half of the top 10 active institutions were located in Brazil.The University of São Paulo contributed the most publications(n=206)and the 10 most productive authors belonged to this institution,with Monteiro CA and Levy RB contributing the most publications.The main research foundations included the NOVA system,the definition of UPFs,the prevalence of UPFs,and the impact of UPFs on dietary quality and health status.The main research frontiers included topics such as“systematic review,”“NOVA food classification,”“COVID-19,”“diabetes,”“pregnancy,”“food addiction,”“warning labels,”“plant-based diet,”and“commercial determinants of health”.Conclusions:This study provided a comprehensive overview of development trends and research hotspots of global UPF studies.
基金This study was funded by Research England,Scottish Funding Council,Higher Education Funding Council for Wales,and Department for the Economy,Northern Ireland as part of the Future Research Assessment Programme(https://www.jisc.ac.uk/future-research-assessment-programme).
文摘Collaborative research causes problems for research assessments because of the difficulty in fairly crediting its authors.Whilst splitting the rewards for an article amongst its authors has the greatest surface-level fairness,many important evaluations assign full credit to each author,irrespective of team size.The underlying rationales for this are labour reduction and the need to incentivise collaborative work because it is necessary to solve many important societal problems.This article assesses whether full counting changes results compared to fractional counting in the case of the UK’s Research Excellence Framework(REF)2021.For this assessment,fractional counting reduces the number of journal articles to as little as 10%of the full counting value,depending on the Unit of Assessment(UoA).Despite this large difference,allocating an overall grade point average(GPA)based on full counting or fractional counting gives results with a median Pearson correlation within UoAs of 0.98.The largest changes are for Archaeology(r=0.84)and Physics(r=0.88).There is a weak tendency for higher scoring institutions to lose from fractional counting,with the loss being statistically significant in 5 of the 34 UoAs.Thus,whilst the apparent over-weighting of contributions to collaboratively authored outputs does not seem too problematic from a fairness perspective overall,it may be worth examining in the few UoAs in which it makes the most difference.
文摘In this opinion paper, we introduce the expressions of dominant terminology and dominant term in the quantitative studies of science in analogy to the notion of dominant design in product development and innovation.
文摘BACKGROUND The United States has witnessed significant advancements in the field of organ transplantation over the course of the last five decades,as demonstrated by a notable increase in the quantity of academic research.The presence of a highly dynamic research environment necessitates continuous evaluations to maintain the integrity and progress of the field.AIM To evaluate the total output and thematic emphasis of transplant research conducted in the United States.METHODS On January 10,2023,we conducted a bibliometric search of United States research output in transplantation journals from the Web of Science database's Science Citation Index Expanded.We excluded editorials,meeting abstracts,and other non-article types.We analyzed annual trends,authors,institutions,articles,keywords,and countries collaborating with the United States,using VOSviewer 1.6.18 to create figures and tables.RESULTS The United States published 25956 papers(3078 reviews and 22878 articles)representing 37.7%of the world's scientific output.Canada emerged as the top collaborator with the United States,co-authoring 1263 articles.Leading institutions in United States transplantation research were the University of Pittsburgh(1749 articles),Mayo Clinic(1605 articles),Harvard Medical School(1549 articles),and Johns Hopkins University(1280 articles).The top three keywords with over 2000 occurrences were"recipients,""survival,"and"outcomes,"indicating a focus on graft and recipient outcome markers by United States researchers.CONCLUSION Our findings demonstrate the United States leadership in organ transplantation research,contributing significantly to the global scientific output in this field.However,opportunities exist for fostering expansive partnerships,particularly with developing countries.This study provides valuable insights into the transplantation research landscape in the United States,emphasizing the importance of ongoing evaluations to maintain and propel advancements in this critical medical discipline.The results may facilitate future collaborations,knowledge exchange,and the pursuit of innovative solutions in the realm of organ transplantation.
基金Natural Science Foundation of China,No.81500116 and 81601449and Jilin Science and Technique,No.20200201472JC and YDZJ202301ZYTS092.
文摘BACKGROUND Gastric cancer(GC)is the sixth most common cancer and third leading cause of cancer-related deaths worldwide.Current treatments mainly rely on surgery-and chemotherapy-based systemic;however,the prognosis remains poor for advanced disease.Recent studies have suggested that immunotherapy has significant potential in cancer therapy;thus,GC immunotherapy may improve quality of life and survival for patients with this disease.AIM To provide a comprehensive overview of the knowledge structure and research hotspots of GC immunotherapy.METHODS We conducted a bibliometric analysis of publications on immunotherapy related to GC in the Web of Science Core Collection database.We analyzed 2013 publications from 1999 to February 1,2023,using the VOSviewer and CiteSpace software.We assessed publication and citation distributions using the WoS platform and explored research countries,institutions,journals,authors,references,and keywords(co-occurrence,timeline view,and burst analysis).In addition,we examined 228 trials on immunotherapy,137 on adoptive cell therapy,274 on immune checkpoint inhibitors(ICIs),and 23 on vaccines from ClinicalTrials.gov and the International Clinical Trials Registry Platform.The Impact Index Per Article for the top ten high-cited papers collected from Reference Citation Analysis(RCA)are presented.RESULTS Our bibliometric analysis revealed that the study of immunotherapy in GC has developed rapidly in recent years.China accounted for almost half the publications,followed by the United States.The number of publications in recent years has been growing continuously,and most institutions and authors with the most publications are from China.The main keywords or clusters identified were“tumor microenvironment”,“adoptive immunotherapy”,“dendritic therapy”,and“microsatellite instability”.CONCLUSION Our analysis of 2013 publications indicated that immunotherapy for GC has led to several new developments in recent years.Considerable progress has been made in vaccinations,immune checkpoint therapy,and adoptive cellular therapy.In particular,ICIs and chimeric antigen receptor T-cells are novel options for the treatment of GC.We suggest that the combination of ICIs,chemotherapy,targeted therapy,and other immunotherapies should be the primary research direction in the future.
文摘“国际科学计量学和信息计量学学会”(International Society for Scientometrics and Informetrics,简称ISSI)是文献计量学、信息计量学、科学计量学、技术计量学、网络计量学等领域最高级别的国际专业学会,其两年一次的大会是相关领域学术水平最高、影响最大的国际会议。如果获得大会的主办权,则表明主办国家及单位的计量学研究水平和实力达到或接近国际水平,
文摘Purpose: The purpose of this study is to modernize previous work on science overlay maps by updating the underlying citation matrix, generating new clusters of scientific disciplines, enhancing visualizations, and providing more accessible means for analysts to generate their own maps Design/methodology/approach: We use the combined set of 2015 Journal Citation Reports for the Science Citation Index (n of journals = 8,778) and the Social Sciences Citation Index (n = 3,212) for a total of 11,365 journals. The set of Web of Science Categories in the Science Citation Index and the Social Sciences Citation Index increased from 224 in 2010 to 227 in 2015. Using dedicated software, a matrix of 227 × 227 cells is generated on the basis of whole-number citation counting. We normalize this matrix using the cosine function. We first develop the citing-side, cosine-normalized map using 2015 data and VOSviewer visualization with default parameter values. A routine for making overlays on the basis of the map ("wc 15.exe") is available at http://www.leydesdorff.net/wc 15/index.htm. Findings: Findings appear in the form of visuals throughout the manuscript. In Figures 1 9 we provide basemaps of science and science overlay maps for a number of companies, universities, and technologies. Research limitations: As Web of Science Categories change and/or are updated so is the need to update the routine we provide. Also, to apply the routine we provide users need access to the Web of Science. Practical implications: Visualization of science overlay maps is now more accurate and true to the 2015 Journal Citation Reports than was the case with the previous version of the routine advanced in our paper.Originality/value: The routine we advance allows users to visualize science overlay maps in VOSviewer using data from more recent Journal Citation Reports.