Material Economy and Logistics 10/2022

As a result of pandemic COVID-19, the increasing resilience has become the priority for most global supply chains. Despite of many studies and analyses concerning the resilience of international supply chains in industry and trade after pandemic COVID-19, there is cognitive gap concerning resilience in touristic supply chains. Therefore the main aim of the paper is identification the structure as well as essence of touristic supply chains management concept. Based on the idea of touristic supply chain the expected utility of six major strategies to build greater resilience in industry and trade will be preliminary analysed from the tourism activity perspective. The methodology of the paper is mainly based on literature review, logical analysis as well as participant observation. Therefore the conclusions as a result of logical deduction should be additionally verified by further empirical research.

The paper solves the problem of controlling the handling of container ships in a tandem seaport. The control system for container ships includes determining the route of ships taking into account random disturbances, ship transport time and the time of unloading/loading. Determining the optimal route of ships is an NP problem. The ship service process is scheduled on a weekly basis. However, the tugboats operate in a shift cycle. It is important to designate a warehouse/wharf where containers are to be unloaded/loaded and to determine restrictions. The port consists of a roadway, ships, unloading and loading quays, canals, and warehouses and can have various structures. It is assumed that the ships await service in the port roadstead. The time horizon for the allocation is one week. Ships waiting in the roadstead have priorities depending on the waiting time. It is assumed that the time of transport, unloading/loading of the vessel and economic parameters are given. The optimization of ship service in the port is multi-criteria. There are entry, exit and internal criteria. The problem of controlling container ships in a tandem seaport was solved by the method of artificial intelligence using a computer program. The optimization criterion was the minimization of vessel service time in both parts of the port, taking into account restrictions. A logistics system for controlling ships in a tandem seaport with averaged data and random events was developed.

The study presents an overview of the available research results concerning the analysis of the impact of factors characteristic for the behavior of road users that influence road accidents. Intellectual fitness, personality and temperament as well as psychomotor skills were analyzed. The aim of the article is to present the current results in terms of selected psychological factors, i.e. intellectual performance, personality and temperament traits as well as psychomotor performance in the field of road safety. It is also the basis for setting directions for further research in this field.

The article assesses the quality of an employee's work while performing remote work, which was introduced in connection with the pandemic of the new COVID-19 disease caused by the SARS-CoV-2 virus, which posed a threat to health and life. The research results were collected using a statistical method in the form of an Internet questionnaire. The assessment of this way of working was made on two time levels, when remote work was introduced on a massive scale and 1.5 years from then on. The survey was conducted periodically and was generally available to the units belonging to the study group for a period of three months. The survey questionnaire has been made available so that the largest number of people who meet the survey requirements have access to it. Internet portals and groups associating office workers were used.