Research landscape of energy transition and green finance: A bibliometric analysis

Evolution and Impact of Imine Reductases (IREDs) Research: A Knowledge Mapping Approach

Nitrogen-containing compounds, particularly those with chiral amine structures, play a crucial role in the development of organic active pharmaceutical ingredients. Imine reductases (IREDs), NAD(P)H-dependent enzymes that catalyze the reduction of cyclic imines and the reductive amination of prochiral ketones, offer significant industrial potential for the synthesis of chiral amines. However, despite the growing body of research, a comprehensive and unbiased assessment of IRED research remains lacking. This study aims to explore the research landscape and evolution of IREDs using bibliometric and knowledge mapping methods. A total of 239 research articles and reviews on IREDs, published between 2010 and 2024, were retrieved from the Web of Science Core Collection and analyzed using tools such as CiteSpace, VOSviewer, Pajek, and Scimago Graphica. Results showed a consistent increase in both publications and citations, with a sharp rise since 2014. Collaboration network analysis revealed that the United Kingdom leads the field in terms of publications and influential institutions, while ChemCatChem was identified as the journal with the highest number of articles. Nicholas J. Turner emerged as a key researcher, having published the most papers and achieving the second-highest citation frequency. Research trends and keyword analysis highlighted areas of focus such as IRED crystal structure resolution, protein engineering modifications, and expanded industrial applications, including multi-enzyme cascade reactions. Ongoing advancements in synthetic biology, protein modifications, and enzyme engineering are expected to drive further studies on highly active IREDs for asymmetric synthesis of pharmaceutical compounds, positioning this research at the forefront of the field. By employing bibliometric analysis, this study provides the first visual representation of IRED research, offering valuable insights into current trends and emerging topics that will aid scholars in identifying key research areas and potential collaborators.

Mapping knowledge domain of acupuncture for Parkinson's disease: a bibliometric and visual analysis

Objective

This study points to probing the inclination and mapping knowledge domain of acupuncture for Parkinson's disease through bibliometrics.

Methods

A search was conducted on 1 February 2024 using the Web of Science to identify papers published on acupuncture for Parkinson's disease. The analysis included scientific research, countries, organizations, authors/cited authors, keywords, journals, and cited references. Bibliometric data were analyzed using VOSviewer software, CiteSpace, GraphPad Prism, and Scimago Graphica. The studies on acupuncture for Parkinson's disease were visualized as a network map according to the publication year.

Results

The cumulative publication trend on acupuncture for Parkinson's disease is increasing year by year. China is the leading contributor in this field. International collaboration is predominantly concentrated in Europe, while institutional collaboration is chiefly limited to Chinese universities specializing in traditional Chinese medicine. Park HJ is the most prolific author, with "Movement Disorders" being the journal with the most publications. "Brain Research" is identified as a key journal, reflecting a focus on neuroscience. Kim SN is the most cited author, while Eisenberg DM is a prominent author in this field. Research topics such as mouse models, systematic reviews, and non-motor symptoms are frequently explored, with messenger RNA of substantia nigra emerging as a notable keyword in this field. Choi YG's 2009 paper, published in the Neuroscience Letters journal, is a critical reference in this field. Key papers include Eisenberg DM's 1998 study on randomized trials of acupuncture for non-motor symptoms of PD, as well as research focusing on the neuroinflammatory regulatory mechanisms of acupuncture for PD.

Conclusion

The bibliometric analysis offers an exhaustive generality of the advancement and worldwide trends in acupuncture treatments for Parkinson's disease, shedding light on potential avenues for prospective research.

The impact of innovative human capital on green growth convergence in China's regions from the perspective of space

The convergence of green growth is not only very important for the sustainable development of mankind, but also plays a key role in the coordinated development of eastern, Midwest regions of China. The effect of innovative human capital (IHC) on the convergence of regional green growth in China needs to be explored. This paper empirically explores the impact of IHC on the convergence of regional green growth in China from spatial perspective for the first time. Through the regression analysis of the convergence models, three main conclusions are obtained: (1) there are obvious conditional β space convergence characteristics of green growth among inter-provincial units in China. Under the spatial correlation expressed by distance weights and adjacent weights, the conditional β space convergence characteristics of green growth are quite different. (2) Compared with the adjacency weight, under the distance weight, the spatial diffusion effect of innovative knowledge and technologies created by IHC is stronger. (3) There is club convergence of green growth in the East and the Midwest regions, and the quantity and quality of IHC in the Midwest region play a stronger role in the convergence of green growth than in the East region. Based on the above conclusions, this paper proposes some policies for the East and Midwest regions.

Sustainable agriculture in the digital era: Past, present, and future trends by bibliometric analysis

The digital era is reshaping agricultural practices, opening new avenues for sustainable growth, and proving indispensable in global challenges like food security and environmental conservation. However, a comprehensive understanding of this evolving landscape remains paramount. This research evaluates 344 papers from the Web of Science database to delve into sustainable agriculture's historical and current patterns in the digital era through bibliometric analysis and project future domains. Specifically, citation analysis identified influential papers, journals, institutions, and countries, while co-authorship analysis verified the interactions between authors, affiliations, and countries. Co-citation analysis found four hotspot clusters: prosperity and challenges in agricultural sustainability, digital information and agricultural development, innovations for sustainable agriculture, and geospatial analysis in environmental studies. The co-occurrence of keywords analysis revealed four main clusters for future studies: smart agriculture and biodiversity conservation, digitalization and sustainable agriculture, technologies and agricultural challenge management, and digital intelligence and farmer adoption. The study pioneers the use of bibliometric analysis to explore sustainable agriculture in the digital era. It presents invaluable insights into the evolving landscape of this field, summarizing its hotspots and suggesting future trajectories.

Psychological capital research in HEIs: Bibliometric analysis of current and future trends

This study presents a comprehensive bibliometric analysis of the literature on psychological capital (PsyCap) within higher education institutions (HEIs). Its main objective is to offer an encompassing perspective on this field's current state and potential developments. To achieve this, the study examines present research trends and predicts future directions using a bibliometric approach. A total of 412 journal articles were gathered from the Web of Science database. The analysis identifies influential publications, outlines the knowledge structure, and forecasts future trends through bibliographic coupling and co-word analyses. The bibliographic coupling revealed five distinct clusters, while the co-word analysis identified four clusters. Despite the growing significance of PsyCap research in HEIs, there remains a need for greater academic efforts to comprehend the research landscape fully. This paper provides valuable insights into the expanding area of PsyCap research within HEIs. In conclusion, the study sheds light on the extensive research conducted on PsyCap in the context of HEIs and offers insights into its potential for further growth.