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Wagner CS, Cai X, Zhang Y, Fry CV. One-year in: COVID-19 research at the international level in CORD-19 data. PLoS One 2022; 17:e0261624. [PMID: 35613122 PMCID: PMC9132347 DOI: 10.1371/journal.pone.0261624] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 12/06/2021] [Indexed: 11/18/2022] Open
Abstract
The appearance of a novel coronavirus in late 2019 radically changed the community of researchers working on coronaviruses since the 2002 SARS epidemic. In 2020, coronavirus-related publications grew by 20 times over the previous two years, with 130,000 more researchers publishing on related topics. The United States, the United Kingdom and China led dozens of nations working on coronavirus prior to the pandemic, but leadership consolidated among these three nations in 2020, which collectively accounted for 50% of all papers, garnering well more than 60% of citations. China took an early lead on COVID-19 research, but dropped rapidly in production and international participation through the year. Europe showed an opposite pattern, beginning slowly in publications but growing in contributions during the year. The share of internationally collaborative publications dropped from pre-pandemic rates; single-authored publications grew. For all nations, including China, the number of publications about COVID track closely with the outbreak of COVID-19 cases. Lower-income nations participate very little in COVID-19 research in 2020. Topic maps of internationally collaborative work show the rise of patient care and public health clusters—two topics that were largely absent from coronavirus research in the two years prior to 2020. Findings are consistent with global science as a self-organizing system operating on a reputation-based dynamic.
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Affiliation(s)
- Caroline S. Wagner
- John Glenn College of Public Affairs, The Ohio State University, Columbus, Ohio, United States of America
- * E-mail:
| | - Xiaojing Cai
- School of Public Affairs, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yi Zhang
- Australian Artificial Intelligence Institute, University of Technology Sydney, Ultimo, Australia
| | - Caroline V. Fry
- Shidler College of Business, University of Hawaiʻi at Mānoa, Honolulu, Hawaiʻi, United States of America
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Orimoloye IR, Ekundayo TC, Ololade OO, Belle JA. Systematic mapping of disaster risk management research and the role of innovative technology. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:4289-4306. [PMID: 32936406 DOI: 10.1007/s11356-020-10791-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Globally, disaster risk management (DRM) has gone through a criterion transpose from static to a technology-based proactive approach in managing disasters including natural and anthropogenic disasters. This study aimed at exploring this research niche and to identify the main topical issues currently underway, such as the most disaster risk management techniques and prevalent geographical locations using scientometrics techniques. The result reveals that studies on DRM during the period of investigation witnessed an increase from early 2000 and peaking in 2017 followed by 2016 with a Kolmogorov-Smirnoff goodness-of-fit of 0.9672. More so, there exists a decline in year 2018 with about 144 published articles on DRM. However, research output fluctuated during the survey period between 1990 and 2004; for instance, the result shows that the research published on DRM in year 1990, 1991, 1992, 1993, 1994 and 1995 are six, seven, five, seven, three and seven articles, respectively. In this study, the contribution of different nations and country collaboration to different sub-categories of disasters was examined. Global distributions of scientific articles tailored to DRM research across different environmental and disaster issues that demonstrate the development of analytical tools used to detect them and the researchers' production from various nations in both developed and developing countries were evaluated. Despite the recurrence of climate-related disasters in some parts of the world, relevant studies, disaster impacts and support systems remain poorly understood and not well explored.
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Affiliation(s)
- Israel R Orimoloye
- Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa.
- Disaster Management Training and Education Centre for Africa, University of the Free State, Bloemfontein, South Africa.
| | - Temitope C Ekundayo
- Department of Biological Sciences, University of Medical Sciences, Ondo City, Ondo State, Nigeria
| | - Olusola O Ololade
- Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
| | - Johanes A Belle
- Disaster Management Training and Education Centre for Africa, University of the Free State, Bloemfontein, South Africa
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Shi Q, Su M, Yuvaraja G, Tang J, Kong L, Chen D. Development of highly efficient bundle-like hydroxyapatite towards abatement of aqueous U(VI) ions: Mechanism and economic assessment. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122550. [PMID: 32299040 DOI: 10.1016/j.jhazmat.2020.122550] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/13/2020] [Accepted: 03/15/2020] [Indexed: 06/11/2023]
Abstract
The exploration of emergency materials with ultra-fast adsorption rate and great adsorption capability of released U(VI) ions is essentially urgent. The present work successfully fabricated bundle-like hydroxyapatite (B-HAP) microstructures which composed of numerous nanorods by employing a facile and green method. The B-HAP was applied to treat the U(VI) containing wastewater. The abatement of U(VI) by B-HAP was very rapid and the saturated adsorption capacity was superior; over 96.7 % of U(VI) was abated within 5 min, and the maximum adsorption capacity was as high as to 1305 mg/g, signifying the feasibility and effectiveness of this B-HAP in the treatment of uranium-contaminated wastewater due to nuclear accidents. It is worthy to note that other ions in solution exhibited relatively low interference on its performance, indicating that B-HAP has great application potential to capture U(VI) from radioactive-contaminated wastewater as well. The U(VI) removal mechanism by B-HAP was confirmed with results from XRD, FT-IR and XPS. Chernikovite [H2(UO2)2(PO4)2·8H2O] was newly formed after U(VI) abatement by B-HAP. Economic assessment suggested B-HAP and its application on U(VI) abatement were cost-effective. With characteristics of high adsorption rate, large capacity, and strong antijamming ability, B-HAP has great application potential as an emergency treatment material for nuclear accidents.
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Affiliation(s)
- Qingpu Shi
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Minhua Su
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Gutha Yuvaraja
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Jinfeng Tang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Linköping University - Guangzhou University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou, 510006, China
| | - Lingjun Kong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Diyun Chen
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
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