ORiON https://www.ajol.info/index.php/orion <p><em>ORiON</em> is the official journal of the Operations Research Society of South Africa (ORSSA) and is published biannually. Papers in the following categories are typically published in <em>ORiON</em>: • Development of New Theory, which may be useful to Operations Research practitioners, or which may lead to the introduction of new methodologies or techniques. • OR Success Stories, which describe demonstrably successful applications of Operations Research within the Southern African context (at the developing / developed economy interface) or similar environments elsewhere. • OR Case Studies, which might not be “success stories,” but which emphasize novel approaches or describe pitfalls in the application of Operations Research. • OR Methodological Reviews, which survey new and potentially useful methodological developments, aimed at Operations Research practitioners especially in Southern Africa. The above list is by no means exhaustive.</p><p>More information about the journal can be found at <a title="http://orion.journals.ac.za/pub" href="http://orion.journals.ac.za/pub" target="_blank">http://orion.journals.ac.za/pub</a> and <a title="http://www.orssa.org.za/wiki/pmwiki.php?n=Main.ORiON" href="http://www.orssa.org.za/wiki/pmwiki.php?n=Main.ORiON" target="_blank">http://www.orssa.org.za/wiki/pmwiki.php?n=Main.ORiON</a></p><p><span style="text-decoration: underline;"><strong>Online Submissions:</strong></span> Authors of new submissions are requested to use ORiON's online submission system. It is currently available at <a title="http://www.orssa.org.za/wiki/pmwiki.php?n=ORiON.Submission" href="http://www.orssa.org.za/wiki/pmwiki.php?n=ORiON.Submission" target="_blank">http://www.orssa.org.za/wiki/pmwiki.php?n=ORiON.Submission</a>. Not only does it ease the administrative burden of the editorial team, but authors can track the refereeing process of their submitted papers on the online system. Referees can also register and complete their referees' reports on this online system. Please contact the journal manager, Matin Kidd, if you need any assistance to use this new facility.</p> en-US <p>The following license applies:</p><p><strong>Attribution CC BY</strong></p><p>This <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">license</a> lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation.</p> jaco.visagie@nwu.ac.za (Jaco Visagie) orion.oss.support@gmail.com (Elzanie Bothma) Wed, 03 Aug 2022 12:55:27 +0000 OJS 3.1.2.4 http://blogs.law.harvard.edu/tech/rss 60 A grid-based humanitarian logistics solution https://www.ajol.info/index.php/orion/article/view/229189 <p>Natural disasters often cause large-scale destruction and many studies focus on the support and evacuation of disaster victims. During a disaster,&nbsp; timely provision of relief items, such as medical supplies, is a critical task and is considered one of the fundamental functions in a humanitarian&nbsp; logistics chain. However, many practical problems and challenges often occur that make the smooth operation of humanitarian logistic functions a&nbsp; difficult and sometimes impossible task. One such problem is the accessibility to disaster areas where roads, railway lines and other transport&nbsp; routes have been demolished and which causes residents or other victims to be cut off from any assistance. In the event that no or little&nbsp; infrastructure exists, humanitarian workers must find new and innovative ways of reaching people in need. In this paper, a grid-based maze that can&nbsp; be solved to find optimal traversable routes in a disaster area is proposed. A matrix maze generation approach is suggested that can be solved&nbsp; by the Lee algorithm to find an optimal route. To illustrate the proposed methodology, a software solution was developed and applied to a real-&nbsp; world case study. The results obtained confirm that the proposed methodology, combined with the Lee algorithm as a solution strategy, delivers&nbsp; useful and accurate results that humanitarian workers may utilise to assist with the evacuation of victims and the transportation of relief items.&nbsp;</p> T. Olivier, H. Kruger Copyright (c) https://www.ajol.info/index.php/orion/article/view/229189 Wed, 03 Aug 2022 00:00:00 +0000 Development of an early career academic supervisor in Statistics - A discussion towards a guiding rubric https://www.ajol.info/index.php/orion/article/view/229193 <p>This discussion paper delves into the current state of academic Statistics in South Africa, specifically the development of an early career academic&nbsp; supervisor in Statistics. The discussions held by the authors on this topic since 2020 have resulted in clear need for action by early career academics in&nbsp; Statistics. This discussion paper motivates a solution involving a guiding rubric for the doctoral thesis coupled with an active early career supervisor&nbsp; network across South Africa.</p> I. Fabris-Rotelli, M.J. von Maltitz, A. Smit, S. Das, D. Roberts, G. Maribe, D. Maposa, F.M. Correa Copyright (c) https://www.ajol.info/index.php/orion/article/view/229193 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229195 <p>No Abstract.</p> J.S. Allison, L. Santana, M. Smuts Copyright (c) https://www.ajol.info/index.php/orion/article/view/229195 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229197 <p>No Abstract.</p> Y. Chhana Copyright (c) 2022 https://www.ajol.info/index.php/orion/article/view/229197 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229210 <p>This article provides commentary on the article titled Development of an early career academic supervisor in Statistics: A discussion on a guiding&nbsp; rubric. The article aims to address the some of the main points raised and provide an overview of a current blueprint of how these can be implemented.</p> J du Pisanie Copyright (c) https://www.ajol.info/index.php/orion/article/view/229210 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229211 <p>No Abstract.</p> L.P. Fatti Copyright (c) https://www.ajol.info/index.php/orion/article/view/229211 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229212 <p>No Abstract.</p> J. Larney, M. Gericke Copyright (c) https://www.ajol.info/index.php/orion/article/view/229212 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229213 <p>No Abstract.</p> S.M. Millard, F.H.J. Kanfer Copyright (c) https://www.ajol.info/index.php/orion/article/view/229213 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229214 <p>No Abstract.</p> T. Sandrock, J. Nienkemper-Swanepoel, D.W. Uys Copyright (c) https://www.ajol.info/index.php/orion/article/view/229214 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229215 <p>No Abstract.</p> Gary Sharp Copyright (c) https://www.ajol.info/index.php/orion/article/view/229215 Wed, 03 Aug 2022 00:00:00 +0000 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric https://www.ajol.info/index.php/orion/article/view/229216 <p>No Abstract.</p> J. van Appel Copyright (c) https://www.ajol.info/index.php/orion/article/view/229216 Wed, 03 Aug 2022 00:00:00 +0000