Klisura/Rozino granite, Central Sredna Gora: a part of the story of late Permian–Early Triassic extensional magmatic event

Тhe late- to post-Variscan magmatic activity in the South Black See region took plaсe during a considerably long period of ca. 80 from Late Carboniferous up to Early–Mid Triassic as two episodes are distinguished. The obtained age of 253.6±1.6 Ma for the Klisura/Rozino granite gives further evidence of the contemporaneous intrusive and extrusive magmatism during late Permian and Early Triassic in the Sredna Gora and Balkan zones.

Food Self-Sufficiency of the SEE Countries; Is the Region Prepared for a Future Crisis?

Although the concept of self-sufficiency has been accepted both in developed and developing countries, alternated with periods of its rejections, the food crisis from 2007/08 and COVID-19 pandemic returned focus to the availability of countries to be self-sufficient in food production. Considering the concerns over ensuring food security in many countries, the main objective of this paper is to estimate the ability to fulfill the feed demand of the population in the eight countries of South-East Europe (SEE), which is in crisis conditions, such as pandemic especially important. In that context, the food self-sufficiency ratio (SSR) is calculated for total food production, as well as for different food groups. The next step in the methodological framework was to estimate the influence of different factors on the self-sufficiency ratio, as it depends on natural, financial, economic, and political factors. The results show that the SEE region expresses a high level of SSR in food, so it shows that the region is quite ready to respond to the challenges posed by the crisis. However, as the SEE region is a group of very different countries, regional cooperation should be strengthened as food production is considered.

Overview and Improvement of Procedures and Practices of Electricity Transmission System Operators in South East Europe to Mitigate Cybersecurity Threats

The implementation of information and communication technologies (ICT) in power systems increases the risks of cybersecurity threats, requiring protection measures that should reflect the multi-actor environment of the contemporary power systems. This paper provides a critical assessment of the cybersecurity practices of the transmission system operators (TSOs) from South East Europe (SEE) and the implementation of obligations for TSOs emerging from the complex set of cybersecurity and electricity legislation. The analyses of TSO cybersecurity practices are based on a survey conducted with the TSOs from SEE and show there is a lack of consistent cybersecurity policy at the TSO level. These analyses demonstrate that the differences between TSOs from the SEE region are not very significant with regards to implementation of technical protection and defense measures for critical infrastructures (CIs) and assets. The comprehensive analyses of electricity and cybersecurity legislation uncover the obligations of TSOs emerging from legislation and relate them to current TSO cybersecurity practices, confirming the necessity to boost existing practices. Considering the analyzed legislation and implemented practices, this paper presents a proposal for a cybersecurity framework for TSOs that should improve their organizational and operational response to the evolving cybersecurity challenges.

Autonomous Navigation of a Team of Unmanned Surface Vehicles for Intercepting Intruders on a Region Boundary

We study problems of intercepting single and multiple invasive intruders on a boundary of a planar region by employing a team of autonomous unmanned surface vehicles. First, the problem of intercepting a single intruder has been studied and then the proposed strategy has been applied to intercepting multiple intruders on the region boundary. Based on the proposed decentralised motion control algorithm and decision making strategy, each autonomous vehicle intercepts any intruder, which tends to leave the region by detecting the most vulnerable point of the boundary. An efficient and simple mathematical rules based control algorithm for navigating the autonomous vehicles on the boundary of the see region is developed. The proposed algorithm is computationally simple and easily implementable in real life intruder interception applications. In this paper, we obtain necessary and sufficient conditions for the existence of a real-time solution to the considered problem of intruder interception. The effectiveness of the proposed method is confirmed by computer simulations with both single and multiple intruders.

Bourdieu’s theorization of social capital in the analysis of South-East European societies

This article discusses the significance of social capital in Bourdieu-inspired analyses of contemporary South-East European societies. We first recapitulate Bourdieu?s theorization of social capital, emphasizing that it allows different operationalizations expressly because of its rather abstract theoretical character. Following that, we explain what is meant by ?South- East European societies? and that their inequality-generating mechanisms are largely based on social closure. In the central part of the article, we comment on some attempts at operationalization of social capital in the SEE region. While we also discuss two cases of eclectically mixing Lin?s operationalization with Bourdieusian concepts, at the center of our attention is the elaboration of Bourdieu?s theorization of social capital put forward by the Serbian sociologist Predrag Cveticanin. The relevance of his concepts of ?social capital of solidarity? and ?social capital of informal connections? for the study of class relations in post-socialist societies in South-East Europe highlights the advantages of a consistent application of the Bourdieusian framework in a contemporary (post-Bourdieusian) context.

Interplay between digital technologies and business performance in banking industry: Global and regional perspectives

In order to remain competitive on both domestic and global market as well as to satisfy evolving consumers' needs, modern banks must not ignore the potential of digital and smart technologies. Taking into consideration the importance of digitalization as a new standard in business practice, the aim of this paper is to evaluate the impact of digitalization on the performance of banking sector globally and in SEE region. The main purpose of this paper is to test if the investments in information and communication technologies (ICT) contribute to the growth of profitability of banking sector as well as to the reduction of OPEX. In order to test the influence of investments in ICT on banking performance adequately, the static panel data models of fixed effects models were used. The results indicate that the influence of investments in ICT on OPEX defers on global and regional level. The results also indicate statistically significant positive relationship between investments in ICT and banks' profitability in SEE region.

NAKNADA ŠTETE USLIJED PRETRPLjENIH TJELESNIH POVREDA I SMRTI PREMA NOVOM ZAKONU O OBAVEZNOM OSIGURANjU U SAOBRAĆAJU FEDERACIJE BOSNE I HERCEGOVINE

Th e new Law on Compulsory Traffi c Insurance has recently entered into force in the Federation of Bosnia and Herzegovina. By enacting of this Law the high level of harmonization with EU-acquis has been achieved. Besides, the interstate harmonization, i.e. equalization with the same-named Law act in Republic of Srpska has also been achieved. Th e special characteristic of this Law that diff ers it from the similar acts in SEE region and wider, is regulating of the rules for determination of the scope of pecuniary and non-pecuniary damage occurred in a traffi c accident. Th e set of rules is prescribed in form of the Framework criteria for determining the compensation amount for injuries or death, which are an integral part of the Law. In this paperwork, the overview of the mentioned Framework criteria will be shown, as well as their importance with regards of legal certainty in determination of the scope of damage. Also, there is a discussion about overcoming the interstate confl ict of law that occurred by their enacting.

Cross-Border Electricity Trading in Southeast Europe Towards an Internal European Market

The European Commission’s Target Model’s main objective is to integrate European electricity markets, leading to a single internal energy market and guaranteeing the instantaneous balance between electricity generation and demand. According to the target model for electricity trading, proposed by the European Network Transmission System Operators for Electricity (ENTSO-E), within each zone, electricity can be traded freely without taking into consideration network limitations. In contrast, for cross-border trading, the exchanges with other market areas are taken into account. Cross-border trade poses a further burden on the interconnection lines, resulting in increasing network congestion, which in turn restricts electricity trading. Thus, calculating the available capacity for trade has a significant ramification on the market. Today, the Available Transfer Capacity (ATC) mechanism dominates cross-border trading, but this methodology may be replaced by the Flow-Based (FB) approach across Europe. This paper investigates both approaches regarding the cross-border congestion management under the market coupling procedure. In our case study, the Southeast Europe (SEE) region is taken into consideration; it consists of both the FB and ATC approach in a five country (Greece, North Macedonia, Bulgaria, Serbia, and Romania) scenario. The purpose of our tests is to perform, compare, and evaluate the effectiveness of each method for the SEE region, while the main findings are the maximization of social welfare, better cross-border trading opportunities, and price convergence via the FB method.