<div dir="ltr"><div><font size="4">Cambio orario.</font></div><div><font size="4">Il seminario di mercoledì 9 novembre 2022, già programmato per le ore 11.30, viene anticipato alle ore 11.00 precise, sempre presso l'aula Beltrami del Dipartimento di Matematica.</font></div><div><font size="4"><br></font></div><div><font size="4">Cordiali saluti,</font></div><div><font size="4">Stefano Lisini.</font></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno lun 7 nov 2022 alle ore 13:35 Stefano Lisini <<a href="mailto:stefano.lisini@unipv.it">stefano.lisini@unipv.it</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Seminari di Matematica Applicata, Dipartimento di Matematica "F. Casorati" e Istituto del CNR IMATI "E. Magenes" di Pavia.<br><br>Mercoledì 9 novembre 2022, alle ore 11.30 precise, presso l'aula Beltrami del Dipartimento di Matematica,<br><br><h4 style="padding:0px;margin:0px 0px 10px;clear:none;color:rgb(23,28,36);font-weight:300;font-stretch:normal;line-height:1.2;font-family:Montserrat,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;box-sizing:border-box"><font size="4">Ettore Lanzarone (Università degli Studi di Bergamo)</font></h4>terrà un seminario dal titolo:<br><br><h3 style="padding:0px;margin:5px 0px 8px;clear:none;color:rgb(23,28,36);font-weight:300;font-stretch:normal;line-height:1.2;font-family:Montserrat,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;box-sizing:border-box"><font size="4">Scheduling appointments for blood donation: from donations at the collection center to home blood donation</font></h3></div><div><font size="4"><br></font></div><div>Il seminario verrà anche trasmesso in diretta su zoom al link<br><div><br><a href="https://us02web.zoom.us/j/81578389795?pwd=MGlVcFVaVE03SjNGTjhUa2ZzejEvZz09" target="_blank">https://us02web.zoom.us/j/81578389795?pwd=MGlVcFVaVE03SjNGTjhUa2ZzejEvZz09</a><br></div><div><br></div><div><span style="color:rgb(61,61,61);font-family:Roboto,sans-serif">Abstract. </span></div><div><p style="padding:0px;margin:0px 0px 20px;box-sizing:border-box;color:rgb(61,61,61);line-height:23px;font-stretch:normal;font-family:Roboto,sans-serif"><span style="font-size:14px">Blood plays a crucial role in all health care systems, it is a limited resource and its shelf life is short. In Western countries, blood is collected from donors, and the so-called Blood Donation Supply Chain (BDSC) aims to provide an adequate supply of blood units to transfusion centers and hospitals.</span><br style="padding:0px;margin:0px;box-sizing:border-box;font-size:14px"><span style="font-size:14px">In this talk, I focus on the collection of blood units from donors, which is the first BDSC echelon, and I consider two opposing donation settings: the classical blood donation at the collection center, and a new organizational model in which blood is collected at donor’s homes to respond to the emerging need for delocalization of health services. For each of them, I tackle the Blood Donation Appointment Scheduling (BDAS) problem, providing a decision support tool that balances the production of the different blood types between days in order to provide a fairly constant supply of blood units to the rest of the BDSC.</span><br style="padding:0px;margin:0px;box-sizing:border-box;font-size:14px"><span style="font-size:14px">In the case of donations at the collection center, the tool consists of an offline Mixed Integer Linear Programming (MILP) model that preallocates time slots to blood types, and an online prioritization policy that assigns a preallocated slot when the donor calls to make the reservation. In the case of home blood donation, the tool consists of a matheuristic framework with three decision stages, in which the first two stages extend those of the other setting and the third one consists of a Multi-Trip Vehicle Routing Problem with Time Windows to route the bloodmobiles that collect blood at donors’ homes.</span><br style="padding:0px;margin:0px;box-sizing:border-box;font-size:14px"><span style="font-size:14px">Both tools have been tested on data coming from a real Italian provider, i.e., the Milan department of the Associazione Volontari Italiani Sangue (AVIS). The numerical experiments have verified the well-performing behavior of both frameworks. In particular, the tests conducted on realistic instances generated based on the AVIS Milan case have confirmed the capability of the tools to balance the production of each blood type over the days and, for home blood donation, to create cost-effective vehicle schedules.</span><br></p><p style="padding:0px;margin:0px 0px 20px;box-sizing:border-box;color:rgb(61,61,61);line-height:23px;font-stretch:normal;font-family:Roboto,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif;color:rgb(34,34,34)">---------------------</span></p></div></div><div>Pagina web dei Seminari di Matematica Applicata<br><a href="https://matematica.unipv.it/ricerca/cicli-di-seminari/seminari-di-matematica-applicata/" rel="noreferrer" target="_blank">https://matematica.unipv.it/ricerca/cicli-di-seminari/seminari-di-matematica-applicata/</a></div></div>
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