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This research aims to reveal trends in the research on the training of educational managers published in the most prominent journals of educational management discipline. A total of 219 articles that were indexed by the Scopus database after the year 1965 were included in the bibliometric analysis. The quantitative properties of these articles draw a big picture that shows the most important authors, journals, topics, and countries in leadership research. This review concluded that interest in the training of educational managers has been constantly growing, but research on the training of educational managers is not prevalent worldwide.

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Background: COVID‐19 due to SARS‐CoV‐2 was first described in the city of Wuhan in China and spread around the world turning into a pandemic. COVID‐19 can affect different organ systems, including the oral mucosa. Aims: Although cutaneous involvement has been defined in association with COVID‐19, the number of case reports about mucosal involvement by SARS‐CoV‐2 is limited. Hereby, we report a case of hemorrhagic necrosis on the lip in a patient with paroxysmal nocturnal hemoglobinuria (PNH) and COVID‐19 infection and briefly discuss its possible mechanism. Patients: The clinical features and causes of hemorrhagic necrosis on the lip in a woman are presented. Results: In our patient, we think that PNH‐associated dermal micro‐occlusions caused extensive painful necrosis of the lip. Additionally, COVID‐19‐induced endothelial damage helped to develop exaggerated hemorrhagic necrosis. Conclusion: This current case presentation will contribute to the literature as another case with COVID‐19 triggering mucosal involvement. [ABSTRACT FROM AUTHOR]

An introduction is presented in which the editor discusses various reports within the issue on topics including the nuclear emergency plan (NEP), the use of mixed integer programming model to pre-position warehouses and the economic risk of a paddy damage caused by flood in the Huai River in China.

The COVID-19 outbreak, which emerged in China and continues to spread rapidly all over the world, has brought with it increasing numbers of cases and deaths. Governments have suffered serious damage and losses not only in the field of health but also in many other fields. This has directed governments to adopt and implement various strategies in their communities. However, only a few countries succeed partially from the strategies implemented while other countries have failed. In this context, it is necessary to identify the most important strategy that should be implemented by governments. A decision problem based on the decisions of many experts, with some contradictory and multiple criteria, should be taken into account in order to evaluate the multiple strategies implemented by various governments. In this study, this decision process is considered as a multi-criteria decision making (MCDM) problem that also takes into account uncertainty. For this purpose, q-rung orthopair fuzzy sets (q-ROFSs) are used to allow decision-makers to their assessments in a wider space and to better deal with ambiguous information. Accordingly, two different Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) approaches are recommended under the q-ROFS environment and applied to determine the most appropriate strategy. The results of the proposed approaches determine the A1 — Mandatory quarantine and strict isolation strategy as the best strategy. Comparisons with other q-rung orthopair fuzzy MCDM methods and intuitionistic fuzzy TOPSIS method are also presented for the validation of the proposed methods. Besides, sensitivity analyses are conducted to check the robustness of the proposed approaches and to observe the effect of the change in the q parameter. • Q-ROFs are used for better handling of vagueness and imprecise information. • Two novel q-ROF TOPSIS methodologies are developed. • Entropy and TOPSIS methods are integrated under q-ROFs. • The proposed methodologies are used to select the most suitable strategy. • The comparison analyses show applicability and validity of the study. [ABSTRACT FROM AUTHOR]