Application of blockchain technology for agrifood supply chain management: a systematic literature review on benefits and challenges

PurposeThis study aims to explore and analyze the application of blockchain technology (BKCT) in agrifood supply chain management (AFSM).Design/methodology/approachA systematic literature review (SLR) using Scopus, Emerald and Web of Science covering publications from 2016 to 2021 (till June). Out of 429 papers, 89 papers were shortlisted from journals based on citation analysis. The citation analysis was followed by a content analysis was for an in-depth analysis.FindingsRegarding the application of BKCT in the agrifood supply chain, the study highlights the issue of food safety, traceability, transparency, eliminating intermediaries and integrating Internet of things (IoT) with BKCT as prominent applications in the agrifood sector. The study also uses the case of honey supply chain to use the explored applications in the agrifood sector and provides a traceability solution based on blockchain integrated with IoT. The challenges of BKCT as identified in the study are scalability, privacy, security, lack of regulations and lack of skills and training.Research limitations/implicationsThe review considers only academic papers obtained from specific databases with their relevance based on number of citations.Originality/valueThe study contributes to filling the existing research gap through this SLR on the application of BKCT in AFSCM. The content analysis further assists in exploring the benefits and challenges of BKCT in the agrifood sector. Thus, the academic articles selected aid in this process.

Global Research On Cognitive Frailty: A Bibliometric and Visual Analysis of Papers Published During 2013 – 2021

Background: Cognitive frailty relates to various adverse health outcomes of older adults and is proposed as a new target of healthy ageing. This study aimed to analyze the status, hotspots, and emerging trends / frontiers of global research on cognitive frailty.Methods: Articles and reviews related to cognitive frailty of older people published from 2013 to 2021 were retrieved from the Web of Science Core Collection (WoSCC) database on 26 November 2021. CiteSpace 5.8.R3 was used to conduct the collaboration analysis, document co-citation analysis, and keyword co-occurrence analysis.Results: A total of 2,077 publications were included. There has been a rapid growth of publications on cognitive research since 2016. The United States, Italy, England, and Australia were the leading research centers of cognitive frailty; however, China has recently focused on this topic. The National Center for Geriatrics and Gerontology and Shimada H. were found to be the most prolific institution and author, respectively. Co-citation analysis identified 16 clusters, of which the largest was cognitive frailty. The most frequently occurred keyword was older adult, followed by cognitive impairment, frailty, risk, dementia, prevalence, mortality, health, and Alzheimer’s disease. Burst keyword detection revealed a rising interest in cognitive frailty models.Conclusions: By analyzing the publications over the past years, this study provides a comprehensive analysis of cognitive frailty research. A variety of visualized networks offer an in-depth understanding of the countries / regions, institutions, authors, hotspots, and research frontiers.

Mapping the Intellectual Structure of the Big Data Research in the IS Discipline

Big data (BD) is one of the emerging topics in the field of information systems. This article utilized citation and co-citation analysis to explore research articles in the field of BD to examine the scientific development in the area. The research data was retrieved from the WOS database from the period between 2005 and June 2016, which consists of 366 articles. In the citation analysis, this article relies on the degree centrality and betweenness centrality for identifying 38 important papers in BD. In the co-citation analysis, a principal component factor analysis of the co-citation matrix is employed for identifying six major research themes: foundations, BD applications, techniques and technologies, challenges, adoption and impacts and literature review. This literature review is one of the first studies to examine the knowledge structure of BD research in the information systems discipline by using evidence-based analysis methods. Recommendations for future research directions in BD are provided based on the analysis and results of this study.

A time for consolidation: A bibliometric analysis of L2 vocabulary research 1985–1989

This paper uses a co-citation analysis to examine the research on L2 vocabulary acquisition that was published in 1989. Two analyses are presented. The first is a detailed account of the 1989 research on its own terms. The second analysis places this work in a larger context by looking at research published in a five-year window covering 1985–89. The analyses identify important themes in the research and significant sources who are influencing the way the research is developing at this time. The main features of this work are the substantial growth in dictionary and corpus research, and the emergence of Paul Nation as the Most Significant Source in 1989.

Global trends on studies with cognitive training: Mapping and bibliometric analysis using CiteSpace

The widespread utility of cognitive training has gained its value in maintaining cognitive performance, reducing neuropsychiatric illnesses, restoring their abilities, and preventing cognitive decline. The objective of this article is to explore the global trends in cognitive training studies. Publication records were obtained from the Web of Science (WoS) core collection for the period of 25 years from 1996 to 2020. CiteSpace 5.7.R5 (64-bit) W version software was used for mapping and bibliometric analysis. Overall, 4,575 records were retrieved and analyzed using bibliometric approaches such as dual-overlay analysis, author co-citation analysis (ACA), document co-citation analysis (DCA), and keyword analysis. It was found that the publication records were increased steadily in the recent five years (2016-2020). The US academic institutions and journals played the dominant role in the field of cognitive training. However, University College London (UCL) had contributed for the highest publication records (128) with a centrality value of 0.12. Few studies were contributed by the developing countries/territories. Author Spector, A had the highest number of publications (47). However, Author Simons, DT as the top-author based on citation burst value (35.15) focused on brain-training interventions. Through the DCA, it was found that working memory training has to be the predominant trend in this domain. The most recent burst keywords such as ‘cognitive intervention,’ ‘plasticity,’ ‘group cognitive intervention,’ ‘virtual reality,’ and ‘prevention’ were considered to be the indicators of emerging trends.