Bibliometric Methodology Research Articles

Analysis of the Productive, Structural, and Dynamic Development of Augmented Reality in Higher Education Research on the Web of Science

Augmented reality is an emerging technology that has gained great relevance thanks to the benefits of its use in learning spaces. The present study focuses on determining the performance and scientific production of augmented reality in higher education (ARHE). A bibliometric methodology for scientific mapping has been used, based on processes of estimation, quantification, analytical tracking, and evaluation of scientific research, taking as its reference the analysis protocols included in the Preferred Reporting Items for Systematic reviews and Meta-analyses for Protocols (PRISMA-P) matrix. A total of 552 scientific publications on the Web of Science (WoS) have been analyzed. Our results show that scientific productions on ARHE are not abundant, tracing its beginnings to the year 1997, with its most productive period beginning in 2015. The most abundant studies are communications and articles (generally in English), with a wide thematic variety in which the bibliometric indicators “virtual environments” and “higher education” stand out. The main sources of origin are International Technology, Education and Development Conference (INTED) Proceedings and Education and New Learning Technologies (EDULEARN) Proceedings, although Spanish institutions are the most prolific. In conclusion, studies related to ARHE in the WoS have become increasingly abundant since ARHE’s research inception in 1997 (and especially since 2009), dealing with a wide thematic variety focused on “virtual environments” and “higher education”; abundant manuscripts are written in English (communications and articles) and originate from Spanish institutions. The main limitation of the study is that the results only reveal the status of this issue in the WoS database.

PO 18195 - Publication trends of research on hallux valgus (1998 - 2018)

Introduction: Hallux valgus (HV) is a very common deformity among affections of the foot, and interest in the subject is persistent in the daily routine of orthopedic surgeons. We investigated the trend in HV publications in the literature. Methods: The research was carried out by searching the Web of Science database between 1998 - 2018, analyzed using a bibliometric methodology. We used the "Bibliometrix" package for R software for the data compilation and VOSviewer for graphic creation. Results: A total of 703 articles were found from the electronic search until December 21, 2018, with 6266 citations. The major scholar in this field was Coughlin M.J., with the largest number of publications (17). The United States led in number of articles published with 26.74%, with Brazil ranked in 26 place. There was an increase in the number of publications, with the highest number of articles published in 2016 (78). Conclusion: The amount of published work on HV has grown rapidly since 2011. The United States has the leading position in global research. The journal with more articles was Foot and Ankle International.

Big data in marketing literature

The concept of big data is one of the important issues in business decision making in recent years. The expansion of social media platforms, the increase in data production devices and the evaluation and interpretation of the data produced by developing technology become crucial. Previous studies in the big data area have addressed the issue in limited contexts, and there are few studies in the field of marketing with a bibliometric approach. This study, which aims to examine how big data concept is evaluated in marketing literature, examines the publications on big data in indexed marketing journals using bibliometric methodology. This study starts with descriptive statistical information and then includes the top published journals, authors and corresponding author’s countries statistics. This study also includes most influential studies for big data concept in marketing literature, employs spectroscopy for detecting historical roots of studies and finally plots growth progress of keywords for predicting, future themes. This study contributes to current literature by providing a summarizing and instructive content for researchers interested in big data in marketing.

The global state of research in nonsurgical treatment of knee osteoarthritis: a bibliometric and visualized study

BackgroundOsteoarthritis (OA) is the most common joint disorder among elderly individuals. Nonsurgical treatment plays an important role in treating knee OA. The aim of the present study was to investigate the trends and research status about nonsurgical treatment of knee OA.MethodsPublications about the nonsurgical treatment of knee OA from 1994 to 2018 were searched from the Web of Science (WoS) database. The data were analyzed by using bibliometric methodology. The software VOSviewer was used for bibliographic coupling, coauthorship, cocitation, co-occurrence analysis and to investigate the publication trends in nonsurgical treatment of knee OA.ResultsIn total, 8512 articles were included. The number of publications increased annually worldwide. The United States has made the largest contribution to this field, with the most publications, citations and the highest H-index. The most contributive institutions were Harvard University, the University of California system and Assistance Publique Hopitaux Paris (APHP). The journal Osteoarthritis and Cartilage published the most relative articles. Studies could be classified into five clusters: articular cartilage study, biomechanics study, physiotherapy study, oral pharmacologic study and intra-articular injection study. Articular cartilage and physiotherapy were predicted as the next hot topics in this field.ConclusionsThere will be an increasing number of publications on the nonsurgical treatment of knee OA based on current global trends. The United States made the largest contribution to this field. More focus will be placed on cartilage-related and physiotherapy research, which may be the next popular topics in the nonsurgical treatment of knee OA.

Analysis of Publication Interest on Preterm Birth Over Two Decades

IntroductionPreterm birth (PTB) is one of the greatest challenges in obstetric and children’s healthcare. PTB remains the most important cause of perinatal morbidity and mortality worldwide. We studied the number of publications concerning PTB over the last two decades using advanced bibliometric visualization methodology. We put the number of publications in perspective of growing awareness of PTB as a major health problem.MethodsWe analyzed publications over time and performed bibliometric analysis of publications on PTB in the Web of Science from 1997 to 2016. The subjects of publications were visualized using a term map showing the relevant terms occurring in titles and abstracts.ResultsWe identified 47,811 publications. The annual number of publications on PTB increased significantly by 443% in 2016 (n = 5027) compared to 1997 (n = 1135). Obstetrics & Gynecology is the leading research field (with 10.4% on the subject PTB in 2016) followed closely by Pediatrics (7.6% on the subject PTB in 2016), within the field Public, Environmental & Occupational Health minimal increase was observed (only 1% was published on the subject PTB in 2016). The publications on PTB have increased at higher rates than the overall increase of publications. In recent years we found more publications on PTB describing epidemiology and clinical characteristics/outcomes whereas in earlier years publications focused more on translational, basic research.ConclusionA significant increase in research concerning PTB was observed over the last two decades. This increase of publications is in line with the growing global awareness of the need to reduce PTB by clinical research.

Ibero-American Research on Local Development. An Analysis of Its Evolution and New Trends

Local development is a subject that arouses significant interest in the international scientific community in general, and in the Ibero-American one, in particular. The process of globalization has transformed the management of local development, altering the role that is played by local and regional entities, and it is the object of an important follow-up and analysis by academia. This research uses a bibliometric methodology and a fractional counting method, reviewing the 738 articles from the Scopus database in order to understand the state of Ibero-American research on local development, and analyze the scientific literature on the topic. The results show a significant increase in the number of publications in the 21st century, with Spain and Brazil leading the way. In addition, this research provides interesting results regarding the most influential authors on this topic, the most relevant journals, and the most important institutions and funding organizations. There are several areas of knowledge involved since local development is a transversal field, such as Social Science, environment, business, economics, and agriculture. A deep analysis of authors’ keywords identified new trends, linking local development with tourism, education, geotourism, climate change, local sustainable development, social innovation, and creativity, which provides academia with potential new lines of research.

Descriptive bibliometric analysis of global publications in lifestyle-based preventive cardiology.

Lifestyle-based preventive cardiology aims to combat the global burden of cardiovascular disease. There have been rapid advances in lifestyle and behavioural interventions aimed at preventing cardiovascular disease in individuals at high risk and in the general population. This study is the first bibliometric analysis of publications in the field of lifestyle-based preventive cardiology. Journal articles relating to lifestyle-based preventive cardiology published from 1996 to 2017 were retrieved from the Scopus database. The publications were limited to those in the English language. The data were indexed using bibliometric methodology and exported to Microsoft Excel for analysis. VOS viewer software was used to conduct co-occurrence and collaboration analysis between authors, institutions and countries. A total of 3300 publications were identified. The annual growth rate of publications increased globally during the study period. The USA made the highest contribution to global publications (1402) and total citation counts (68,540). Harvard Medical School was the most prolific institution and David Wood was the most prolific author in the field. The European Journal of Preventive Cardiology published the largest number of articles in this field. Obesity was the most common theme. The current growth trends predict a large increase in the number of global publications on lifestyle-based preventive cardiology. Further research could focus on smoking cessation, which at present is under-represented in lifestyle-based preventive cardiology output.

The State of Exosomes Research: A Global Visualized Analysis.

Objective With the development of exosomes studies increased around the whole world. Our present study was aimed to investigate the global status and trends in exosomes field. Methods Publications related to exosomes studies from 1994 to 2017 were retrieved from the Web of Science database. The data source was studied and indexed by using bibliometric methodology. For visualized study, VOS viewer software was used to conduct bibliographic coupling analysis, coauthorship analysis, cocitation analysis, and cooccurrence analysis and to analyze the publication trend in exosomes research. Results A total of 4960 publications were included. The relative research interests and number of publications were increasing per year globally. The USA made the highest contributions to the global research with the most citations, the highest H-index, and the most total link strength, while Sweden had the highest average citation per item. The journal PLOS ONE had the highest publication number. The Natl Canc Ctr was the most contributive institutions. Studies could be divided into three clusters: mechanism study, in vivo study, and in vitro study. Conclusions The efforts should be put into mechanism studies, predicted to be the next hot spots in exosomes studies.

РОССИЙСКИЕ ИССЛЕДОВАНИЯ ПО НАНОФОТОНИКЕ В ГЛОБАЛЬНОМ КОНТЕКСТЕ

As a promising spin off element of nanotechnology nanophotonics began to develop since early 2000s. Adoption of national nanotechnology programs by many governments, apparently, contributed to this. For tracking the emerging scientific and technological area, the bibliometric approach is often used. The source of information is the authoritative polythematical database Science Citation Index Expanded. The author firstly explores the formation of the world research landscape in the field of nanophotonics. To this end, 14 countries are selected, namely the G7 group of developed countries and the group of the most active Asian countries (A7). Then, the focus of analysis turns to the publication activity of compared units, their presence in the top-1% and top-10% segments of scientific literature, as well as the structure of their collaboration links. In particular, it is shown that while the Asian group dominates by total number of publications, the G7 group has the superiority in terms of contribution to the elite segments of these publications. As for Russia, it is presented in the top?10 countries in terms of productivity and citation indicators. It should be noted that in the field of nanophotonics Russia’s indicators are significantly better than in nanotechnology in general. With the help of bibliometric methodology the main institutional participants of research in Russia are identified, their contribution and positioning in world rankings are determined. For example, it is shown that the Russian Academy of Sciences is the third among comparable scientific organizations in the world, and two national universities (Moscow State University and ITMO University) are among the first hundred of world’s universities producing nanophotonics publications. Nevertheless, until now no Russian research unit can pretend for the status of world-class Center of Scientific Excellence. The results of governmental university-centered policy are further discussed in light of the performed bibliometric study.

Bibliometric analysis of the literature on Ramadan fasting and diabetes in the past three decades (1989–2018)

ObjectivesTo quantify the research contribution related to Ramadan fasting and diabetes. MethodsWe searched for the combination of “Ramadan” and Diabetes” in the title, abstract and keywords in the Scopus database between 1989 and 2018. Articles were analysed for standard bibliometric methodology and VOSviewer was used to construct bibliometric diagrams. ResultsThe total number of retrieved articles was 424 articles; 112 were “Open Access”. Two-thirds of articles covered original research. Articles were published in medical journals of varying influence. UK-based authors and affiliated institutions were dominant. A single author has an evident dedication to Ramadan research whereas for many authors it Ramadan research was just one aspect of their academic interest. The number publications and the extent of international collaborations were lower than expected, given the world-wide practice of Ramadan fasting by many populations with an increased prevalence of diabetes. The need to share experiences and generalizable conclusions. ConclusionsThis is the first bibliometric study on diabetes in Ramadan. It is a good starting point to evaluate gaps in research activity in the field and should help identify future research directions and foster more collaboration.

A Bibliometric Analysis of the First 25 Years of the Journal of Business-to-Business Marketing

ABSTRACTPurpose: As part of the recognition of the 25th anniversary of the Journal of Business-to-Business Marketing (JBBM), this paper presents an overview of the JBBM through a bibliometric analysis (BA) of its content from 1992 to 2016. The analysis focuses on the most cited articles and authors, h-index, publications per year, among others that typically are conducted for BAs.Design/Methodology/Approach: This paper begins with an introduction to the JBBM, showing its characteristics, its history as well as the editorial development and subsequent journal positioning. This information is followed by an analysis based on bibliometric methodology (BM) which considers the h-index, total citations (TCs), total papers (TPs), TC/TP ratio and other similar measures. To display this information, investigation was done to determine the most cited journals, articles, authors, universities and countries, ergo with the greatest incidence within JBBM. Analyzed are 329 articles, reviews and notes taken from the Scopus database for the periods between 1992 and 2016 for the JBBM.Findings: At the time of this work, the completion of the 25th anniversary of this journal, there is a rising trend in the number of JBBM publications per year. The researchers from the United States were most frequent contributors to the journal, while researchers from Germany, Australia, Norway and the United Kingdom were well represented. Multiple coauthors were more frequent while topics across the general model of business-to-business (B-to-B) marketing were typically found. Special issues on all three university-level education, technology in the classroom as well as Internet in effect B-to-B tactical marketing.Practical Implications: After observing the different perspectives of the journal’s production, we gain another objective view on the evolution of the JBBM in prior 25 years. This approach is useful for the readers of this journal in order to obtain a quick snapshot of the leading trends occurring in the journal and is similar as performed for many cognate titles. The many titles within marketing and the business disciplines may find such an exercise revelatory.Originality/Value: There is a trend where several journals (Journal of Marketing, Journal of Public Policy & Marketing, Journal of Marketing Research and Journal of Business Research) have produced special sections to show progress and contributions of these to scientific research using BA and BM. This paper does similarly for the JBBM.

Most cited 100 articles in herniology: Bibliometric study

BACKGROUND: Being cited by another article is valuable for scientific publications. Citation analysis of previously published papers by bibliometric methodology have been performed in different disciplines do date. The present study was done with the purpose of listing the most cited articles in the field of abdominal wall hernias, in other words herniology. MATERIALS AND METHODS: A search was conducted through all databases in the Web of Science to determine the most cited articles related to the abdominal wall hernias. RESULTS: The total number of citations of the top 100 articles in herniology was 26.316. The mean number of citations was 263.16. The top 100 articles originated from 13 countries, and were published in 37 journals. The most productive decade was 2000-2009 with 55 papers. Journal impact factors correlated with citation counts positively. Inguinal hernia and incisional hernia were the leading topics in 41 and 40 related articles. The number of the authors also did not show any correlation with citation counts. There was no relationship between the number of the cited references and the citations counts of the articles. CONCLUSION: Citation counts of the articles about abdominal wall hernias are somewhat lower than those in other fields. Most articles in the top 100 list are related to inguinal and incisional hernias. BACKGROUND: Being cited by another article is valuable for scientific publications. Citation analysis of previously published papers by bibliometric methodology have been performed in different disciplines do date. The present study was done with the purpose of listing the most cited articles in the field of abdominal wall hernias, in other words herniology. MATERIALS AND METHODS: A search was conducted through all databases in the Web of Science to determine the most cited articles related to the abdominal wall hernias. RESULTS: The total number of citations of the top 100 articles in herniology was 26.316. The mean number of citations was 263.16. The top 100 articles originated from 13 countries, and were published in 37 journals. The most productive decade was 2000-2009 with 55 papers. Journal impact factors correlated with citation counts positively. Inguinal hernia and incisional hernia were the leading topics in 41 and 40 related articles. The number of the authors also did not show any correlation with citation counts. There was no relationship between the number of the cited references and the citations counts of the articles. CONCLUSION: Citation counts of the articles about abdominal wall hernias are somewhat lower than those in other fields. Most articles in the top 100 list are related to inguinal and incisional hernias.

Global output of research on the health of international migrant workers from 2000 to 2017

BackgroundApproximately 150 million international migrant workers work under conditions that increase their risk of illness and injuries. The current study aimed to assess and analyze the global output of research on the health of international migrant workers to promote national and international policies that could help improve the health of international migrant workers.MethodsA bibliometric methodology was implemented using Scopus database after retrieving documents relevant to the health of migrant workers during the study period from 2000 to 2017.ResultsIn total, 955 documents were retrieved. The mean number of authors per document was 4.5 while the mean number of citation per document was 10.2. The retrieved documents were mainly in health policy and systems (n = 452; 47.3%), infectious diseases (n = 252; 26.4%), and mental and psychosocial health (n = 239; 25.0%). The health of Latino migrant farmworkers represented the largest cluster of keywords. The USA led (n = 389; 40.7%) with regard to the number of publications followed by China (n = 86; 9.0%) and the UK (n = 66; 6.9%). Researchers from the USA and Spain dominated the field. There were limited international research collaboration and a limited number and size of research networks. The American Journal of Industrial Medicine was most active (7.1%; n = 68) in publishing documents on health of migrant workers while the Wake Forest University was the most active (10.9%; n = 104) institution in this topic.ConclusionThe volume of global research output on the health of migrant workers was low. There was inadequate research on non-communicable diseases and maternal health of migrant workers. International research collaboration and the number of research networks were limited. Role of several world regions, particularly Arab region with 11% of international migrant workforce was also limited. There is an urgent need to prioritize research on migrant workers, especially female migrant workers in regions with low research contribution.

Bibliometric analysis of peer-reviewed literature on Syrian refugees and displaced people (2011\u20132017)

BackgroundThe Syrian conflict has created the worst humanitarian crisis of our time with approximately half of Syria’s pre-war population killed or forced to flee their homes. The current study aimed to analyze peer-reviewed literature published on Syrian refugees and displaced people.MethodsA bibliometric methodology was implemented using Scopus database after retrieving documents relevant to Syrian refugees and displaced people.FindingsIn total, 323 documents were retrieved. Research articles constituted 71.2% (n = 230) of the retrieved documents. The bulk (61.6%; n = 199) of the retrieved documents were in health-related fields. Research domains of the retrieved health-related documents were mainly in the field of mental and psychosocial (17.3%; n = 56), infectious diseases (15.2%; n = 49), health policy and systems (16.4%; n = 53), maternal and reproductive health (15.2%; n = 49), and non-communicable diseases (NCD) (7.4%; n = 24). Authors from research institutions in the United States produced the highest number of publications (24.5%; n = 79), followed by Turkey (21.4%; n = 69) and Lebanon (10.2%; n = 33). The American University of Beirut was the most active (5.6%; n = 18) research institution. Aside from Lebanon and Jordan, there was very little contribution from other Arab states. Conflict and Health was the most active journal (5.3%; n = 17) in publishing on Syrian refugees and displaced people.ConclusionThe study highlighted some particular research gaps – most notably the limited research on NCDs. There was also modest international research collaboration and engagement from Arab countries aside from Lebanon and Jordan.

A bibliometric analysis of global research output on health and human rights (1900\u20132017)

BackgroundBaseline data on global research activity on health and human rights (HHR) needs to be assessed and analyzed to identify research gaps and to prioritize funding and research agendas. Therefore, the aim of this study was to assess the growth of publications and research pattern on HHR.MethodsA bibliometric methodology was used. Literature on HHR was retrieved using SciVerse Scopus for the study period from 1900 to 2017. Nine different search scenarios with different keyword combinations were used to retrieve the required documents. All types of documents published in peer-reviewed journals, including editorials, were included. The search strategy was validated.ResultsIn total 6513 documents were retrieved with an h-index of 88 and an average of 9.8 citations per document. Publications on HHR field started as early as 1950 but showed a steep rise in the past two decades. Visualization of author keywords revealed that HIV/ AIDS, mental health, maternal and reproductive health, violence, ethics, torture, and refugees were most commonly encountered keywords. The journal “Health and Human Rights” was most active (n = 467; 7.2%) in this field. However, documents that appeared in The Lancet received the highest impact (29.5 citations per document). The United States of America produced the most in this field (n = 1817; 27.9%). Researchers in the region of Americas participated in approximately 45% of the retrieved documents while researchers in the Eastern Mediterranean region had the least contribution (2.5%). Researchers in high-income countries contributed to approximately 78% of the retrieved documents while researchers in low-income countries contributed to less than 5% of the retrieved documents. When data were standardized by population size, the research output from high-income countries was approximately four documents per one million inhabitants. For middle-income countries, the research output was 0.3 document per one million inhabitants. For low-income countries, the research output was 0.5 document per one million inhabitants.ConclusionsDifferential research productivity on HHR was seen among scholars in different world regions. World countries need to encourage and strengthen research on HHR in order to achieve the goals set in international agreements of human rights.

Global output of research on epidermal parasitic skin diseases from 1967 to 2017

BackgroundEpidermal parasitic skin diseases (EPSD) occur in most countries and cause a considerable health and economic burden, particularly in the tropics and subtropics. The aim of this study was to assess and analyse peer-reviewed literature on EPSD in humans. The results of this study serve as an indicator of the extent the scientific community, health authorities, and international health agencies interact with EPSD as a health problem that is commonly associated with poverty and poor hygiene.MethodsA bibliometric analysis methodology was used. The Scopus database was used to retrieve documents about EPSD for the study period (1967–2017). The study focused on scabies, tungiasis, pediculosis, hookworm-related cutaneous larva migrans (HrCLM), myiasis, and cutaneous strongyloidiasis. Documents that specifically and explicitly discuss EPSD in animals, aquatic organisms, and birds were excluded.ResultsIn total, 4186 documents were retrieved. A fluctuated growth of publications on EPSD in the past five decades was found. The retrieved documents received 43 301 citations, an average of 10.3 citations per article and an h-index of 74. The keywords “scabies” and was the most commonly encountered keyword followed by the keywords “head lice” and “pediculosis”. The most active journal involved in publishing articles on EPSD was the International Journal of Dermatology (164; 3.9%). Researchers from 93 different countries published the retrieved articles. The USA led with 735 (17.6%) documents, followed by the UK (274; 6.5%), and Germany (259; 6.2%). In terms of institutions, the Charité – Universitätsmedizin Berlin in Germany was the most active in this field with 78 (1.9%) publications, followed by the Universidade Federal do Ceará in Brazil with 52 (1.2%) publications.ConclusionsResearch on scabies and pediculosis dominated the field of EPSD research to the expense of tungiasis, HrCLM, myiasis, and cutaneous strongyloidiasis. There was an underrepresentation of literature from the tropics and subtropics despite EPSD being common in these areas. This could possibly be explained by the presence of limited number of non-English journals in the Scopus database. International research collaborations and research networking should be strengthened to help advance and prioritize research on EPSD.

Bibliometric analysis of global publications in medication adherence (1900-2017).

Medication non-adherence is a worldwide problem. The aim of this study was to assess the global research output, research trends and topics that shaped medication adherence research. A bibliometric methodology was applied. Keywords related to 'medication adherence' were searched in Scopus database for all times up to 31 December 2017. Retrieved data were analyzsd, and bibliometric indicators and maps were presented. In total, 16 133 documents were retrieved. Most frequently encountered author keywords, other than adherence/compliance, were HIV, hypertension, diabetes mellitus, schizophrenia, depression, osteoporosis, asthma and quality of life. The number of documents published from 2008 to 2017 represented 62.0% (n = 10 005) of the total retrieved documents. The h-index of the retrieved documents was 223. The USA ranked first (43.1%; n = 6959), followed by the UK (8.6%; n = 1384) and Canada (4.5%; n = 796). The USA dominated the lists of active authors and institutions. Top active journals in publishing research on medication adherence were mainly in the field of AIDS. Top-cited articles in the field focused on adherence to anti-HIV medications, the impact of depression on medication adherence and barriers to adherence. Adherence among HIV patients dominated the field of medication adherence. Research on medication adherence needs to be strengthened in all countries and in different types of chronic diseases. Research collaboration should also be encouraged to increase research activity on medication adherence in developing countries.

From academia to citizenry. Study of the flow of scientific information from projects to scientific journals and social media in the field of “Energy saving”

The Energy Saving sector is key to the development of countries due to its economic, social and environmental impact. At the scientific level, its importance is perceived in the support of different international funding agencies to finance research on this subject. In order to analyse the characteristics and impact of these initiatives, this paper examines the European projects into the Seventh Framework Programme on Energy Saving. Using a bibliometric methodology, the flow of scientific information from these projects to scientific publications is analyzed. Finally, in order to know the social repercussions of these research, the impact of the projects and publications on social media has been considered. Methodologically, a multiple linear regression model was developed to relate the variables from each information source and to detect the ones that contribute to the social media impact of scientific publications. The results show that the research activities in Energy Saving are concentrated in Germany, France, United Kingdom and Spain. In general, the main partners are companies and public research centers and no link has been found between the funding received and the size of the research consortia. As for the model developed, it has been found that the journal, documental type and international collaboration are the most significant factors for the impact of research in social media.

Global research trends in stem cells for osteoarthritis: a bibliometric and visualized study.

There have been increased interests in the use of stems cells in the research of osteoarthritis (OA). The present study aimed to investigate the global status and trends in this field. Publications related to stem cells search in OA from 1994 to 2017 were retrieved from the Science Citation Index-Expanded Web of Science. The source data were studied and indexed using a bibliometric methodology. For visualized study, VOS viewer software was used to conduct bibliographic coupling, co-authorship, co-citation and co-occurrence analysis and to analyze the publication trends in stem cells for OA research. A total of 1933 articles were included. The relative research interests and number of publications were globally increasing per year. The USA made the highest contributions to the global research with the most citations and the highest H-index. The journal Osteoarthritis and Cartilage had the highest publication number. The Tokyo Medical and Dental University, University of Pittsburgh and Shanghai Jiaotong University were the most contributive institutions. Studies could be divided into four clusters: mechanism study, animal study, clinical trials and tissue engineering. The clinical studies were predicted to be the next popular topic in this field. The number of publications about stem cells for OA would be increasing based on the current global trends. The USA was the largest contributor in this field. Most efforts could be put into clinical studies involving mesenchymal stem cells for OA, which may be the next hot spots in OA and stem cells research.

A pesquisa em trade-offs de custos logísticos: estudo bibliométrico no período de 2006 a 2016

A otimização dos custos e o acréscimo de benefícios contraídos pelo processo logístico se dão a partir da identificação e da exploração dos trade-offs de custos logísticos. Nesse sentido, o presente trabalho se propõe a apresentar, por meio da metodologia de estudo bibliométrico, a evolução e as principais práticas utilizadas na gestão destes custos nas organizações por meio da avaliação de trade-offs em processos logísticos. Para o estudo, foram levantados sessenta e quatro artigos científicos publicados no período de 2006 a 2016 em periódicos classificados pelo Qualis 2014 e ranqueados entre A1 e B2, disponibilizados na Plataforma Sucupira. Os artigos coletados foram pesquisados nas áreas de Engenharias III, da qual a Engenharia de Produção faz parte, e nas Ciências Sociais Aplicadas, onde o tema custos logísticos também é amplamente abordado. A pesquisa realizou-se em três etapas: coleta de dados, análise e síntese. Os resultados revelaram que a área de Pesquisa Operacional lidera como ciência empregada ao utilizar métodos descritivos e estocásticos. Enquanto aspecto restritivo, ficou evidente a dificuldade em aplicações diretas em trade-offs de custos logísticos, o que caracteriza uma lacuna de estudos no que diz respeito à integração entre a logística e a contabilidade.