https://www.ajol.info/index.php/orion/issue/feed ORiON 2022-08-03T12:58:13+00:00 Jaco Visagie jaco.visagie@nwu.ac.za Open Journal Systems <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> https://www.ajol.info/index.php/orion/article/view/229189 A grid-based humanitarian logistics solution 2022-08-03T07:30:58+00:00 T. Olivier Hennie.Kruger@nwu.ac.za H. Kruger Hennie.Kruger@nwu.ac.za <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> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229193 Development of an early career academic supervisor in Statistics - A discussion towards a guiding rubric 2022-08-03T07:45:37+00:00 I. Fabris-Rotelli inger.fabris-rotelli@up.ac.za M.J. von Maltitz inger.fabris-rotelli@up.ac.za A. Smit inger.fabris-rotelli@up.ac.za S. Das inger.fabris-rotelli@up.ac.za D. Roberts inger.fabris-rotelli@up.ac.za G. Maribe inger.fabris-rotelli@up.ac.za D. Maposa inger.fabris-rotelli@up.ac.za F.M. Correa inger.fabris-rotelli@up.ac.za <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> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229195 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T07:53:11+00:00 J.S. Allison James.Allison@nwu.ac.za L. Santana James.Allison@nwu.ac.za M. Smuts James.Allison@nwu.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229197 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:58:13+00:00 Y. Chhana Yoko.Chhana@wits.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) 2022 https://www.ajol.info/index.php/orion/article/view/229210 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T11:53:28+00:00 J du Pisanie johan.dupisanie@monocle.co.za <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> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229211 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:04:28+00:00 L.P. Fatti paulfatti@gmail.com <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229212 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:13:28+00:00 J. Larney Janette.Larney@nwu.ac.za M. Gericke Janette.Larney@nwu.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229213 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:24:05+00:00 S.M. Millard sollie.millard@up.ac.za F.H.J. Kanfer sollie.millard@up.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229214 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:37:41+00:00 T. Sandrock trudies@sun.ac.za J. Nienkemper-Swanepoel trudies@sun.ac.za D.W. Uys trudies@sun.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229215 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:45:18+00:00 Gary Sharp gary.sharp@mandela.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c) https://www.ajol.info/index.php/orion/article/view/229216 Comments: Development of an early career academic supervisor in Statistics - a discussion on a guiding rubric 2022-08-03T12:51:33+00:00 J. van Appel jvanappel@uj.ac.za <p>No Abstract.</p> 2022-08-03T00:00:00+00:00 Copyright (c)