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The validation of H₂O absorption lines parameters in the modern spectroscopic databases such as HITRAN2016, HITRAN2020, GEISA2020, and W2020 database of H₂O lines is carried out in the visible region 16700-17000 cm^-1. The H₂O transmission spectra were simulated with the spectroscopic databases and compared with laboratory spectra of pure water vapor and H₂O-N₂ mixture ( P = 1 atm), recorded using a Fourier spectrometer with light-emitting diodes of high luminance. The parameters of 65 H₂O absorption lines from HITRAN2020 database were corrected on the basis of the measurements. The positions of 32 lines, intensities of 51 lines, and self-broadening coefficients of 10 lines were improved. The ratio of the HITRAN2020 broadening coefficients to the experimental values is close to 1, whereas the air pressure-induced line shift coefficients in the spectroscopic databases are, on average, two times higher than the experimental values, and therefore, our previously obtained experimental values of N₂ pressure-induced line shift coefficients were used to simulate the transmission spectra of H₂O-N₂ mixture. The difference of the experimental spectra from the spectra calculated with HITRAN2016, HITRAN2020, GEISA2020, and W2020 spectroscopic databases and corrected HITRAN2020cor gives root-mean-square deviations RMS = 1.49E-4, 1.64E-4, 3.96E-4, 3.49E-4, and 1.26E-4 in the case of pure water vapor and RMS = 1.15E-4, 1.1E-4, 2.23E-4, 2.28E-4, and 0.86E-4 for H₂O-N₂ mixture, respectively.

A polarization dielectric mirror on a ZnSe substrate is created for laser systems in the mid-IR range. The film periodic structure was calculated using the Optilayer software. Zinc sulfide (ZnS) and ytterbium fluoride (YbF₃) were used as materials for the interference coating. The optical parameters of the materials used are determined in a wide spectral range. The interference coating of the structure calculated was deposited onto the substrate by the ion-beam sputtering method. The threshold value for laser-induced breakdown of a dielectric mirror by Ho:YAG laser radiation with a wavelength of 2.097 mm was obtained, which was 4 J/cm² at a pulse repetition rate of 10 kHz and a pulse duration at half-height of 30 ns. The mirror was tested in an OPO system based on a ZnGeP₂ single crystal; the conversion efficiency obtained with this mirror reaches 30%.

Experimental and theoretical studies of optical non-line-of-sight communication in air and water media performed in Russia in 2012-2022 are rewieved. The main results of field, laboratory, and numerical experiments in the IR, visible, and UV wavelength ranges are given. In the laboratory experiments, a water-glycerine and atmospheric air mixture were used as a scattering medium. In the field experiments, communication was implemented in the near-surface air layer, as well as in artificial and natural water reservoirs (including through ice). Investigations were performed for coplanar and non-coplanar schemes of communication channels.

The absorption spectrum of ¹⁴N¹⁸O molecule in the 5200-5500 сm^-1 range was recorded for the first time using a Bruker IFS 125M Fourier spectrometer with a spectral resolution of 0.0056 сm^-1. The analysis of the spectrum made it possible to detect the vibrational-rotational lines of 3-0 band of the main transitions in X²Π electronic state of ¹⁴N¹⁸O molecule. For the main transitions ²Π_1/2 - ²Π_1/2 and ²Π_3/2 - ²Π_3/2, 102 line positions of Λ-doublet in three branches were registered. For 61 resolved doublets, the positions and relative intensities of each component of a doublet were determined. The maximum value of the rotational quantum number J was 29.5. The found experimental line positions in 3-0 band confirmed the calculated data given in HITRAN database. The frequencies of registered transitions, weighted in accordance with experimental uncertainties, have been processed, and the spectroscopic constants for the vibrational state v = 3 been determined. With the found spectroscopic constants, we predicted the rotational energy values up to J = 35.5 for the vibrational state v = 3 and, accordingly, the transition frequencies in 3-3 and 3-0 vibrational bands for ²Π_1/2 and ²Π_3/2 electronic states. The calculations performed showed agreement with the data given in HITRAN within the error specified in this database.

In the proposed series of articles, based on the idea of the unity of scientism and worldview, we intend to identify and analyse the core functions of philosophy and its role in scientific knowledge. This article considers the genesis and foundations of the functions of philosophy in the process of its formation and development.

Obviously, we could have failed to be successful scientists. But a serious question lurks beneath the banal one stated in my title. If the results of a scientific investigation are correct, would any investigation of roughly the same subject matter, if successful, at least implicitly contain or imply the same results? Using examples ranging from immunology to high-energy physics, the paper presents the cases for both positive and negative answers. The paper is deliberately non-conclusive, arguing that the question is one of the few serious philosophical issues that divides protagonists in the «science wars».

Every person has a sense of his uniqueness - a sense of self. This sovereign self is the center of conscious life that ensures the unity of the personality. The desire to solve the mystery of this unity of identity and difference, rest and movement should sooner or later result in the creation of the science of egology which studies the structures of pure consciousness. Explicitly, the idea of egology was first introduced in Husserl’s later works. However, implicitly this idea has ancient origins. Given the antiquity of the egological tradition, I limit myself in this article to the formulation of the idea of egology in Husserl’s philosophy and its perception in the follow-up phenomenological movement. Along with positive arguments, the article also presents the arguments of those who sincerely expressed doubts and objections or quite rejected the possibility of a pure self, and hence the science which deals with it.

The article is a brief description of the creativity and specifics of the philosophical position of I. Hacking, dedicated to the death of the philosopher.

The article is devoted to a review of the philosophical heritage of J. Hacking. The specifics of his philosophical development are presented and the features of his philosophical research in the main directions of the philosopher’s work are characterized.

The article considers the inconsistences in the higher education system and highlights the main requirements for the professional training of a modern specialist. A cluster approach is proposed as the basis for the methodology of a university design in the developing innovative society. The reasons for the emergence of the cluster form of organization of educational institutions are shown and the principles of constructing such clusters are described. The educational cluster is regarded as a driver for the formation and development of the intellectual capital of society. The ontology of the development of university educational structures is presented in the form of a self-organizing cluster system. The methodology for solving the problem of building an educational cluster is revealed through the conceptual model and instrumental one.