This paper aims to study the locomotive routing problem (LRP) which is one of the most important problems in railroad scheduling in view of involving expensive assets and high cost of operating locomotives. This problem is assigning a fleet of locomotives to a network of trains to provide sufficient power to pull them from their origins to destinations by satisfying a rich set of operational con...

A correct social media strategy is essential for travel agencies working in today's global market to reach customers. The travel industry is a service-oriented industry, and travel agencies can easily reach their customers on social media by transforming their marketing strategies at no extra costs. There are so many options that a travel agency can use to make itself more visible on social med...

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With few exceptions, the European Council closed Europe for non-citizen travellers on 17 March 2020 because of Covid-19 pandemic. Many African countries, including Nigeria, have placed travel restrictions or completely shut their borders to both who want enter country and citizens leave. These decisions affect many intending migrants seeking a way reach Europe. Health socioeconomic uncertaintie...

The value of travel time savings (VTTS) is the monetary value attached to save a determined amount of travel time. VTTS is also the most important benefit category aimed at justifying investments in transport infrastructures by public administrations. Hence VTTS played a significant role in various economic studies, both analytical and empirical (Zamparini & Reggiani, 2007). "It is difficult to...

This auto-ethnographic/biographical account deals with the experiences that a non-flying Northern-Ireland-born anthropologist living in Baltic States has of mobility, infrastructure and connectedness, particular reference to academic personal life. The article considers movements which career as an requires, well difficulties intricacies being located Eastern Europe for such land travel. Based ...

Background: Clinical research is a specific phase of the production process in the pharmaceutical industry in which companies test candidate drugs on patients in order to collect clinical evidence about safety and effectiveness.Objective: This paper is an operational research which aimed to support the hypothesis that pharmaceutical clinical research is l...

Introduction: The number of travellers from Greece who travel to sub-Saharan Africa has increased during the last decade. Our aim in this research was to study vaccination patterns for travellers travelling to sub-Saharan Africa.Methods: A cross-sectional study was conducted from January 2011 until December 2014 in all (57) public health departments in Gr...

Possible strategies to mitigate the climate impact of tourism transport include encouraging closer destinations and supporting more sustainable modes transport, including trains. Today international trips by railways only have a small market share but night trains are considered an important part future green Europe. However, little is known about travelers' preferences for long-distance travel...