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Background. The article considers cognitive mechanisms of the formation of the temporal meanings in the advertising tourist narrative. Relevance of the study is determined by its correlation with modern linguistic research aimed at studying linguistic semantics in its relationship with cognitive structures. Having a multicomponent structure, time is currently positioned as an attribute of human activity and also as a phenomenon of human existence. However, there is insufficient study of the interpretive potential of time, which makes research topic relevant. Purpose. The research purpose is as follows: to determine the cognitive mechanisms of the temporal organization of the advertising tourist narrative. Materials and methods. Language units of various levels were used for the study, obtained from authentic online texts of advertising tourist narrative. The main research methods include analysis and synthesis of theoretical material, the continuous sampling method, descriptive method, contextual analysis method as well as cognitive modeling method. Results. The results have shown that the main cognitive mechanisms of formation and interpretation of temporal meanings in the advertising tourist narrative include focusing, profiling, perspectivization, conceptual metaphor. Cognitive models of structuring temporal meanings, the source of which are the cognitive mechanisms outlined above, are considered. Practical implications. The research results can be used in the development of courses on general linguistics, lexicology and cognitive linguistics.

Based on the Richards-Wolf formalism, we obtain two different exact expressions for the angular momentum (AM) density in the focus of a vortex beam with the topological charge n and with right circular polarization. One expression for the AM density is derived as the cross product of the position vector and the Poynting vector and has a nonzero value at the focus for an arbitrary integer number n. The other expression for the AM density is deduced as a sum of the orbital angular momentum (OAM) and the spin angular momentum (SAM). We reveal that at the focus of the light field under analysis, the latter turns zero at n = –1. While both these expressions are not equal to each other at each point of space, 3D integrals thereof are equal. Thus, exact expressions are obtained for densities of AM, SAM and OAM at the focus of a vortex beam with right-hand circular polarization and the identity for the densities AM = SAM + OAM is shown to be violated. Besides, it is shown that the expressions for the strength vectors of the electric and magnetic fields near the sharp focus, obtained by adopting the Richards-Wolf formalism, are exact solutions of the Maxwell's equations. Thus, Richards–Wolf theory exactly describes the behavior of light near the sharp focus in free space.

Subject and Purpose. The problems under consideration concern selection and focusing of higher-order modes in a waveguide-based dielectric laser. The purpose is to clarify the physics underlying the behavior of, and permitting control over, continuous terahertz-frequency laser beams of various spatial polarizations. Methods and Methodology. The mode parameters of the waveguide-based laser resonator involving an inhomogeneous phase-stepped mirror were calculated in a matrix technique. To analyze the propagation and focusing of the laser beams that can be excited in a variety of diffraction zones by the wave modes of a waveguide-based quasi-optical resonator, a vectorial Rayleigh–Sommerfeld theory was used. The pertinent experimental studies were performed with the use of known measurement methods suitable for the terahertz frequency range. Results. A method for selecting the higher-order EH12q-mode of a terahertz-range laser resonator has been suggested, substantiated theoretically and approbated in experiment. It envisages placing an additional element to perform control over the system’s modal structure, namely a (2.3…2.8) λ-wide groove on the surface of one of the resonator mirrors. This measure can significantly increase losses for all undesirable modes. At the same time, the losses for the higher EH12q-mode remain practically unchanged, which creates conditions for its predominant excitation. Theoretical and experimental studies of moderate and ‘sharp’ focusing in free space of higher-order modes with different spatial polarizations of a dielectric waveguide-based resonator have been carried out. Conclusion. As has been shown, the proposed phase-stepped mirror with a groove can effectively select the higher-order transverse modes that may be required. The linearly polarized EH12q-mode has maximum field intensity in the focal region of the lens employed. For azimuthally polarized TE02q- and TE03q-modes the central lobes, noticeably shifted from the focus of the lens, have a field maximum. An increase in the axial intensity is observed upon ‘sharp’ focusing in the field distribution of the radially polarized TM02q- and TM03q-modes. In this case their central lobes, like those of the higher TE0nq-modes, are noticeably shifted from the lens focus.

The business world has never been more erratic or unpredictable. Competition comes not only for product, services and technology, but also for sales channels, policies, people and brand. In order to survive in today’s unpredictable world, organizations must actively create, embrace and implement new ideas. This requires the creative thinking of the entire team. The concept of design thinking allows to realize such requirements. At-present design thinking is considered as a way to solve problems of a business or organization by empathy, deep understanding of the client, the user, the consumer of goods and services. This approach to decision making helps the reduction of the risks of wasted resources and time by introducing new design thinking methods based on key aspects. First, design thinking is human-centered, it emphasizes the importance of deep learning people’s needs and lives while creating value before starting to develop solutions. Second, design thinking is a method based on the ability to create new ideas and innovate. Third, design thinking in business allows you to develop multiple options so you don’t risk everything and consider the desires of all stakeholders while still in the search phase, which means being able to manage a portfolio of new ideas. Finally, the process is iterative. It involves doing experimental research in the real world instead of doing analysis using historical data. It is a process of constantly shaping and testing prototypes and changing perceptions of current tools in the business. These and other aspects are discussed in more detail in the article and underline the relevance of the research topic. Among other issues, the article considers the concept of “design thinking”, justified the history of development, the popularity of this new type of management tool in the economic space, highlighted the main features of design thinking, the stages of implementation, the basic tools and their capabilities. The author offered to consider design thinking as a way of the decision of a certain question in other way with use of completely different approach. It is another way of thinking or product mapping, which relies on the concept of design. This can include convergent and divergent thinking, testing and phasing, examining customers’ opinions, views and tastes, and doing ethnographic research. And if all abovementioned factors are combined, this process is called design thinking. And if we add design thinking to management, we can get a number of quantitative and balanced methods of solving individual business-issues. That’s why the article reveals the specifics of using design thinking on the example of certain companies, such as RealtimeBoard, Netflix, Airbnb, and presents the results of empirical research of French companies on the scope of design thinking. Focuses on selected areas of design thinking application in different business areas (business design, human resource management, etc.). In this article is presented a vision for future trends in design thinking.

The work shows a significant effect of the focusing magnetic field on the output characteristics of the klystron. When the calculations are done using nonlinear one-dimensional models, optimization of the parameters makes it possible to obtain versions of devices with the efficiency of 0.8 – 0.9 and higher. However, when testing these options using nonlinear two-dimensional models that take into account the radial motion of electrons, there is a significant discrepancy in the output characteristics obtained from the one-dimensional and two-dimensional models. This is due to the fact that during the motion of the electron beam, the radii of the leading centers of the large particles change the coefficients of interaction of the particle fields with the electromagnetic fields of the resonators change, which leads to a change in the output characteristics of the klystrons: efficiency, output power, and gain. On the other hand, it seemed that setting a large focusing magnetic field to exclude the radial motion of particles could eliminate this drawback, however, another problem arises here - the magnetic system for focusing becomes unacceptably large and it is technically difficult to obtain magnetic induction values of more than 2 T (the weight of the magnetic system can be several hundred kilograms). Therefore, one should choose the magnetic field induction for focusing the electron beam no more than 1T. In this paper, a twodimensional nonlinear mathematical model (2.5D) is proposed that takes into account the azimuthal component in the equations of motion. In the model, the induction of the focusing magnetic field is set in the form of tables. This makes it possible to set the inhomogeneity of the magnetic field at any place in the interaction space of the klystron. The calculation of a powerful relativistic klystron with an accelerating voltage of 1000 kV and the beam current of 250 A was carried out. The use of an inhomogeneous magnetic field makes it possible to reduce the deposition of electrons in the region of the gaps. Therefore, a decrease in the electron deposition leads to an increase in the durability of klystrons.

The article defines the concept of «strategy» as: plan, competitive actions, behavior model, market position, conception and perspective. The strategy is a comprehensive, unified and integrated plan, a set of actions and measures to solve a specific problem situation, achieving targeted goals that are developed in advance for a certain period of time. Current trends in the implementation of strategies include ensuring the quality of products, focusing on individual groups of consumers and improving products and services. The strategies of leadership, cost minimization and differentiation are typically focused on gaining a competitive advantage within a wide range of industry sector segments, while the focusing strategy involves gaining cost advantages or differentiation in narrow segments of the industry sector. Modern trends in the implementation of strategies of leadership, cost minimization and differentiation focus are identified on the example of enterprises of the EU countries. Three of the most popular company strategies are: 1) high quality focus – 52.3% of the EU companies use this strategy; 2) focus on satisfying established groups of consumers – 50.3%, which reflects the world-view or ways of thinking of entrepreneurs in these markets and confirms the theoretical idea that the strategy is a conception that has a manifestation in the world-view of stakeholders and business owners; 3) focus on improving the existing products and services, which are used by an average of 41.5% of companies. In addition, 37.7% of the EU firms use the focus on appealing to new consumer groups, and 36.7% of organizations use a specific solution for a client. It is proved that most companies in the EU use two or more strategies that are built on innovation activities (products, services, business processes) at the same time.

The article analyses the process of meaning formation of names of warships in the military discourse with the aim of identifying conceptual mechanisms which underlie the naming of seacraft. The research constitutes part of the study in the field of cognitive linguistics and fills in the gap in the studies of metaphoric potential and cultural specificities of secondary names applied to artifacts (as big as warships) in British and American tradition. The results show that of all 1200 seacraft names, 700 units are originally zoomorphic common nouns transformed into proper names of seacraft with which they “share” and sometimes even exchange some of their basic or latent semantic characteristics. It was revealed that underlying mechanisms of meaning formation in seacraft nicknames are cognitive mechanisms of conceptual metaphor, focusing and defocusing. To describe them the methods of frame analysis and cognitive metaphoric modelling are employed. Metaphor in the paper is both the object and the tool of research. To support the analysis, the information about specific features of named objects and creatures is elicited from dictionaries and language corpora.

Subject and Purpose. In this paper, spatial power characteristics of laser beams with inhomogeneous spatial polarization are theoretically investigated depending on whether they have moderate or sharp focusing. The spotlight of the numerical simulation of laser beam focusing in the terahertz range is on the laser waveguide dielectric resonator modes coincident with waveguide eigenmodes. Symmetric and asymmetric modes with both spatially inhomogeneous azimuthal and radial polarizations and homogeneous linear polarization of the field are considered. Methods and Methodology. The study of the electric field components of laser radiation beams in their free space propagation employs Rayleigh-Sommerfeld integrals in nonparaxial approximation. The focusing lens action on the laser radiation is considered using the amplitude-phase correction function. The total intensity distributions of the resonator modes and their particular field components in the lens focal area are examined. Results. Wave beams with inhomogeneous spatial polarization of radiation are needed for meeting important fundamental and applied problems concerning terahertz electromagnetic wave interaction with matter and including diagnostics of material surface, thin films and biological objects, design and development of terahertz systems of information transmission and processing, terahertz communication systems, achievement of subwave resolution in terahertz tomography, etc. The literature on pulsed radiation beam focusing in the terahertz region is available, which cannot be said about continuous radiation beam focusing, data on the subject being practically absent. In the present work, physical features of moderate and sharp focusing of laser beams have been theoretically studied in the case of their excitation by modes of the resonator with a circular dielectric waveguide with different spatial polarizations of the field. The obtained results give a more in-depth view of the focusing features of terahertz laser beams. Conclusions. Physical features have been established for spatial power characteristics of radiation beams with different spatial polarizations of the field in the case of the excitation by modes of the laser cavity upon a circular dielectric waveguide in the terahertz range and with the regimes of moderate and sharp beam focusing in the free space considered.

The paper presents results of the experimental investigation of “spectral” diffractive lenses the same focus position for several given wavelengths. Two spectral diffractive lenses designed to focus radiation of three and five specified wavelengths in the visible spectrum were investigated. Using a method of direct laser writing in photoresist with iterative correction of writing parameters, we fabricated a diffractive microrelief of the spectral lenses with the height deviation from the designed relief of less than 30 nm. Using a pinhole located at the focus of the fabricated lenses, we estimated the operation wavelengths. The point spread functions of the spectral lenses at the designed wavelengths were measured with the use of a tunable laser. The imaging properties of the spectral lenses were illustrated by the images of a reference color table.

The analysis of the most common mechanisms of pragmatic focusing used by modern English-speaking authors in the reinterpretation of canonical, “roving” plots is proposed. Particular attention is paid to the context as one of the types of foregrounding, possessing ontological salience and realizing text-forming, expressive, evaluative, ludic functions. A comparative structural, compositional, and linguistic-stylistic analysis of eight literary texts intertextually correlated with the classic story of the Blue Beard made it possible to identify such methods of attention distribution in the modeled by A. Carter, D. Bartelmi, J. Updike, J. K. Oates, S. King, M. Atwood, W. Vernon, and F. Block as a ludic mode of formulating narratives, changing narrative perspectives, introducing “text within the text”, meta- fictional commentary. Along with focusing mechanisms, the article also pays attention to the defocusing of some traditional narrative elements, which is believed to be an integral part of the interpretation program of the literary texts under consideration. The authors of numerous versions of the story about Bluebeard, foregrounding various language “games of focus”, highlight the creative transformations of archetypal images and cross-cutting motives that reflect gender, socioeconomic, cultural changes in modern society.

Subject and ppurpose. In this paper, the spatial-energy characteristics of laser beams with inhomogeneous spatial polarization with their moderate and sharp focusing are theoretically investigated. In the numerical simulation of focusing of wave laser beams in the terahertz range, laser resonator modes based on a circular metal waveguide were used as the radiation under study. These modes coincide with the proper types of oscillations of such a waveguide. For the calculation, we selected symmetric and asymmetric modes with azimuthal, radial, and complex spatial polarization of the field. Methods and methodology. In the study of the propagation of the components of the electric field of laser radiation in free space, Rayleigh-Sommerfeld integrals were used in the nonparaxial approximation. The effect of the focusing lens on the radiation under study was taken into account using the function of amplitude-phase correction. The transverse distributions of the total field intensity and its individual components of the studied resonant modes in the region of the minimum size of the focal spot of focused radiation beams were studied. Results. Wave beams with inhomogeneous spatial polarization of radiation are necessary for solving important fundamental and applied problems. These tasks are associated with the interaction of electromagnetic waves of the terahertz range with matter. For example, diagnostics of the surface of materials, thin films, biological objects, THz transmission systems and information processing, the achievement of subwave resolution THz tomography, terahertz communication systems, etc. The results of studies of focusing features in the terahertz range are practically absent. A theoretical study was made of the physical features of moderate and sharp focusing of laser beams of radiation excited by the modes of a resonator with a circular metal waveguide with different spatial polarization of the field. The results obtained extend knowledge of the focusing features of terahertz laser beams. Conclusions. The physical features of the spatial-energy characteristics are established with moderate and sharp focusing in free space of radiation beams with different spatial polarization of the field. These beams were excited by laser resonator modes based on a circular metal waveguide in the terahertz range.

The article presents the issues of sharpness of images of the structure of materials in metallographic studies. The use of the concept of depth of field to obtain images of the structure of various objects – fractures, microsection polished specimen, optically transparent materials is illustrated. The errors of focusing on the sharpness for metal specimens are considered; it is shown that in the case of inclined arrangement of the specimen, the zone of sharp image is a strip with parallel boundaries formed by a fuzzy visible structure. Particularities of focusing out-of-flatness samples and replicas are shown. It is noted that the location of the areas of the non-sharply visible structure in the image is the result of external influence. The possibilities of varying sharpness for the quantitative analysis of austenite grain, as well as the visualization of dendritic structures are demonstrated.

Purpose: Radio wave scattering by a sound pulse in the atmosphere when wind is present is investigated theoretically. Design/methodology/approach: The asymptotic of the scattered field in the Fresnel diffraction approximation is analyzed with Gaussian directional patterns of radiating systems. Findings: It is shown that for small angles of backscattering the field is concentrated in a bounded area moving under the exposure of transverse wind velocity. Conclusions: Explanation of the focusing effects dependence on wind velocity is suggested.

The review is devoted to experiential approaches in psychotherapy. The analysis of history and logic of their occurrence is carried out. E. Gendlin's approach and process¬experiential psychotherapy of L. Rice, L. Grinberg, R. Elliott, etc — their basic theoretical principles and methods — are viewed. The purpose of this article is to introduce little¬known in Russia, but gaining popularity and credibility abroad approaches, and to show them as the examples of the integrative trend in modern humanistic psychotherapy. The development of theoretical concepts and practical elaboration of psychotechnical unit of subject and method of these approaches — the experience and the empathy — are analyzed. Attention is given to their com¬parison with Russian experiential approach — co¬experiencing psychotherapy of F.E. Vasilyuk.

The paper describes the results of the experimental research of the volt-ampere characteristics of the three-electrode electron gun. Such systems are widely used in the electron-ray devices meant for getting visible image on the screen, and in microwave devices, such as TWT, BWT, as well. On the basis of the experimental results practical recommendations of how to choose the optimal voltage regimes on the focusing electrodes were made, which allows to form paraxial axially-symmetric beams with the diameter in crossover about 0.05-0.5 mm and beam current up to 30 mA. [ABSTRACT FROM AUTHOR]