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ACKNOWLEDGEMENTS
I wish to thanks all the authors for their contribution and especially to all the reviewers for their critical insight and timely reviews of the manuscripts, without which this thematic issue was not possible. I would also like to thank my organization, Sultan Qaboos University, for encouragement and support.
Open-Access License: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.