The article presents a multidimensional comparative analysis of apartment prices in seventeen cities in Poland from the first quarter of 2017 to the first quarter of 2021 in terms of the maintenance of economic security. Prices were analyzed in two aspects: value and dynamics of changes, referring to the first period under consideration in spatial terms (in each of the seventeen cities). The research used multidimensional comparative analyzes, such as: Chernoff faces and normalization with the use of stimulants. This, in turn, made it possible to examine the similarities and differences in the prices of 1 m2 of residential real estate in respective cities in Poland in a dynamic approach.
The aim of this article is to show the impact of unmanned aerial vehicles (UAVs) and how their support helps the police in activities for the security of our country. Let us ask ourselves whether drones, as these mobile devices, are able to support various types of campaigns carried out by many uniformed services in Poland faster and easier. The police, using the latest techniques for reconnaissance and operational activities, can successfully indicate that UAVs are very necessary and facilitate work, especially in difficult conditions that are difficult for humans. That is why the policemen are trained on an ongoing basis in the field of UAV service so that they can effectively use the equipment for work, which was also indicated in their tasks. Increasingly, monitoring of the so-called in advance, it allows you to quickly reach the threat or people who threaten and want to commit acts that do not comply with applicable law.
The article presents a multidimensional comparative analysis of the drops in the number of passengers transported by rail in 28 European countries on a quarterly basis in 2012-2020 in terms of the impact of the COVID-19 pandemic and economic security. Data collected from Eurostat on the number of passengers transported by rail in 28 European countries were aggregated and further analyzed in order to emphasize the regularities governing them. The research has observed a growing trend on an annual and quarterly basis in the total number of passengers transported by rail in 28 European countries in 2012-2019. Additionally, in the unnamed (quarterly) data, a quarterly seasonality was detected. Since 2020, there have been declines in the number of passengers transported by rail in all of the 28 European countries considered. The declines were subjected to a comparative analysis, adopting various criteria, in order to assess which countries were most affected by the COVID-19 pandemic in terms of rail passenger transport.