ABSTRACT
The pandemic situation associated with the occurrence of COVID-19 has necessitated the initiation or renewal of research activities aimed at the possibility of using materials that will have very good post-accident properties. One of the materials that have been developed, tested and applied in the past has been materials based on the spherical fullerene C 60 molecule. A microstructure using REM and SEM and sorptive properties of fullerene C 60 for gases of toluene with the employment of a QCM detector has been studied. Obtained micrographs are discussed in relation to a possible spatial arrangement at the molecular level. The envisaged solution aims to develop a sensor that, due to its surface properties, would be useful for the detection of gas and liquid phases of chemical warfare agents and industrial chemicals. It is envisaged that the surface layer consisting of fullerene C 60 will be universally applicable, reusable and low cost and low maintenance. © 2022 Challenges to National Defence in Contemporary Geopolitical Situation. All rights reserved.
ABSTRACT
The period in which countries around the world, including the Czech Republic, found themselves at the end of 2021 was characterized by a number of very significant political and security threats and risks. It was a period in which the next wave of the pandemic situation associated with the COVID-19 disease was manifesting itself. Even though the Czech Republic was already much better prepared for the problems associated with the outbreak of this disease, it could not be said that it was managing everything well, without problems and within the political consensus of all ruling and opposition parties. Based on results achieved in the elections to the Chamber of Deputies of the Parliament of the Czech Republic, which took place in October 2021, the priorities of the winning parties grouped into one government coalition were set. These priorities were presented in the form of a coalition agreement to the public. A paper deals with the anticipated intentions of the Government of the Czech Republic in its implementation for the 2021-2025 electoral period in the issues of safety and security in all aspects of their perception. Among the aspects examined were the areas of security policy implementation and the broader concept of population protection. In the paper, the terms "security” and "protection” are frequented in the number and form in which they appear in the text of the coalition agreement. The paper presents the occurrence of these terms in the documents that became the basic and initial documents for establishing mutual pre-election cooperation between political parties and movements. Last but not least, it also presents changes in the approach to these concepts in relation to coalition agreements concluded in 2013 and 2017. Other aspects of coalition agreements are deliberately not mentioned. © 2022 Challenges to National Defence in Contemporary Geopolitical Situation. All rights reserved.
ABSTRACT
Currently, setting the obligation to use respiratory protective equipment with a level of protection of at least FFP2 in public transport and commercial and shopping centers are considered within the European Union. Many new products appeared on the European market within these specifications, and many symbols have been used. The paper deals with the meaning of selected respiratory protection based on respirators symbols and markings (which appeared massively, especially after the pandemic situation in the spring of 2020), these symbols not being uniformly understood and well communicated. We also mention and discuss some of the problems related to setting the conditions of public procurement, which affect respirators. Thus, this review is an “informative guide” in facilitating the understanding and use of full knowledge of the most appropriate respiratory protective devices in various situations. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.