The occurrence of gas confined in shales allows us to consider it as a component of the host rock. During drilling wells, the gas is released into the drilling fluid from finely ground gas-bearing rock particles. The amount of gas released can be determined on the basis of mud-gas logging; in addition, it is possible to determine the gas-content in shales expressed by the volume of gas released per mass unit of rock [m3/ton]. The gas content in the Ordovician and Silurian shales (Sasin formation and Jantar member respectively) in two selected wells in northern Poland was determined using this method. It has been found that clearly distinguishable, highly gas-bearing sections, which are separated by very poorly gas-bearing ones, can be determined in the well log. The increased gas content in shales can be observed in zones generally enriched in TOC. No direct correlation between TOC and gas-bearing capacity was found however, but the structure of TOC variability and the gas-bearing capacity described using variograms is identical. Correlations of the distinguished gas-bearing layers in the wells under consideration suggest a multi-lens or multi-layered reservoir model. The lack of natural boundaries in the shale gas reservoir means that they must be determined arbitrarily based on the assumed marginal gas-bearing capacity. In the case of several gas-bearing zones, numerous variants of interpretation are possible. In any case the low, best and high estimated resources may be evaluated, assigned to each borehole in the area with radii equal to the range of variogram of gas content in horizontal part of the well.

The world economy is constantly faced with crises that cause a significant negative impact. Each crisis poses new challenges to the economy and, on the one hand, inhibits economic growth, and on the other hand, can become a powerful stimulus for the development and rethinking of fundamental approaches to its construction. Conducting an analysis and establishing relationships between the economic situation and the state of the energy sector make it possible not only to predict the future but also to develop specific steps to prevent crises or reduce their negative impact. At the same time, establishing and evaluating the relationship between key economic and energy indicators, the main one of which is definitely the energy intensity of GDP, will provide an opportunity to understand how improving energy security will affect the economic situation in the country. The generalization of Ukraine’s experience in rebuilding and recovering the economy after the biggest crisis creates a basis for further research in the field of energy management, crisis management, economics, and the construction of investment policy. The reconstruction of Ukraine after the war has the potential to become the most significant stimulus for development and economic growth. During the crisis, it is very important to pay attention to the country’s energy security. In particular, it is necessary to ensure the diversification of energy resources, taking into account their rising cost. Energy markets are currently experiencing extreme volatility caused by geopolitical tensions, which requires additional attention in the development and implementation of strategic guidelines for sustainable economic recovery in Ukraine.

Applying frame semantics, usage-based construction grammar, and quantitative corpus-based methodology, this article seeks to explore the nature of the extraposed construction with past participles complemented by that-clauses. To this end, the author extracts the occurrences of the It BE V_en that-construction from the Corpus of Contemporary American English (COCA), determines its structural, semantic, distributional, and discourse-functional features, and identifies verbs that are strongly associated with the construction in question. The study meaningfully contributes to a growing body of research on it-extraposition by conducting a qualitative and quantitative analysis of one of its variants, a grammatical pattern with past participles that has not been hitherto investigated in much detail from a quantitative corpus- based perspective.

The subject of the work is a five-layered composite beam with clamped ends subjected to a uniformly distributed load along its length. Two analytical models of this beam are developed with consideration of the shear effect. The first model is formulated on the basis of the classical zig-zag theory. Whereas, the second model is developed using an individual nonlinear shear deformation theory with consideration of the classical shear stress formula (called Zhuravsky shear stress). The system of two differential equations of equilibrium for each beam model is obtained based on the principle of stationary total potential energy. These systems of equations are exactly analytically solved. The shear effect function and the maximum deflection are determined for each of these two beam models. Detailed calculations are carried out for exemplary beams of selected dimensionless sizes and material constants. The main goal of the research is to develop two analytical models of this beam, determine the shear effect function, the shear coefficient, and the maximum deflection in the elastic range for each model, as well as to perform a comparative analysis.

The Convention of the Law of the Sea of 1982 states clearly that countries bordering semi-enclosed seas, such as the Baltic, are expected to cooperate closely in securing their rights and executing their duties. The obligation to cooperate as stated in Article 123 of the convention refers to, among others, any installation or structure constructed on the Baltic Sea bottom. Russia and Germany both ignored this obligation as they viewed the proposed construction in strictly commercial terms. This position not only violates the norms of the both the Convention of the Law of the Sea of 1982 and HELCOM of 1992, but it also ignores the fundamental principles of the energy policy of the European Union. Article 23 statute 3 of legislation on the Republic of Poland's sea areas and marine administration, states that permission to construct and exploit any constructions within Polish sea areas (including those in the exclusive economic zone) is not to be granted if the proposed construction threatens the environment, marine resources, or the national economy. Unquestionably, the proposed Russian-German pipeline poses an ecological threat due to its length and is contrary to Polish interests.

Methodology of New Testament studies reflects the way(s) which are commonly accepted by scholars working with the second part of the Christian Bible in order to solve difficulties and problems connected with the proper reading, understanding and interpretation of biblical text. Taking into consideration the important document of Pontifical Biblical Commission Interpretation of the Bible in the Church (1993), the article describes the fundamental distinctions between approaches and methods as two general modes of enquiry of the Bible. The special attention is given towards the historical-critical method, stressing that her use is necessary in the scientific studies of the four Gospels as well as the other canonical books. Methodology of New Testament studies should also reflect the serious knowledge of the interpretation given by the Church Fathers and the Wirkungsgeschichte of the Bible.

The paper presents the mathematical model of a pipelay spread. In the model, elasto-plastic deflections of the pipe, its large deformations and contact problems are considered. The modification of the rigid finite element method (REFM) is used to discretise the pipe. The problem is analyzed in two stages. First, the quasi-static problem is considered. The tip of the pipe is pulled from the reel to the tensioner. Then, dynamic analysis (during ordinary work) of the pipelay spread is carried out. Some results of numerical calculations are presented.