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Konstantin Aleksandrovich Leontiev

It is the article by Dr. Petr V. Golubkov from the Journal «PhysicsUspekhi (Advances in Physical Sciences)» devoted to Prof. Konstantin A. Leontiev (1932, vol. 12, pp. 501–505).

Petr V. Gulubkov: Pages of Biography in Context of Physical Faculty and University History

Pages of the history of Physical Faculty of Saratov State University and memories about professor Peter Vasilievich Golubkov (1899–1973) are presented.

The Great Physical Auditorium: the Best of the Best

About the Great Physical Auditorium of the Third building of the Saratov University.

The Third Building: Fifties – Early Sixties XX Century

The author tells about his studies and early years of work at the Physics Faculty of the Saratov University.

The Faculty of Physics in the XXI Century. To the 70th Anniversary of the Physical Faculty of Saratov State University

Some data on the history of physical education and science in Saratov University for the period 2000–2014 years are presented.

How Was Built the Main Building of the Saratov Physicists

The construction history of the Third building of Saratov University (Institute of Physics) that has been officially opened on October 4, 1914 (old style) is described.

Department of Optics and Biophotonics: People and Light

Some pages of history of Optics and Biophotonics Department of Saratov State University are illuminated.

Scientific and Educational Physical Schools in Saratov (on the 80th Anniversary of the Saratov Region)

We present a brief history of scientific-educational schools in physics in Saratov since the founding of Saratov University (1909). Saratov belongs to Russian industrial centers that have extensive experience of research, development of technology of electronic equipment, training for this field of science and technology. The outstanding scientist Peter N. Lebedev was at the forefront of physical education and science in Saratov.

Afterword to the Anniversary of the Faculty of Physics of SSU

We present information on the meeting of graduates from physical faculty of Saratov National Research State University, dedicated to the 70th anniversary of the faculty. Physical education in the university was formed under the influence of the greatest Russian physicists Peter N. Lebedev and Nikolai N. Semenov, the winner of the 1956 Nobel Prize. Graduates from the faculty of various specialties (on vacuum and solid state electronics, radiophysics, optics, chemical physics, laser physics and biophotonics) celebrated the anniversary of the faculty on February 19, 2016.

D. I. Blokhintsev about the Spiritual Foundations of Scientific Creativity

The Corresponding Member of the USSR AS Dmitrii Ivanovich Blokhintsev (10.01.1908 — 29.01.1979), one of the pioneers of atomic science and technology in USSR, the organizer and the first director of the Joint Institute for Nuclear Research in Dubna, has his original opinions about the spiritual foundations of scientific creativity. In this brief paper, we try to treat his opinions and show how they are working in the modern physics and cosmology of the Early Universe.

THE 60th ANNIVERSARY OF THE DEPARTMENT OF PHYSICS OF THE SARATOV STATE UNIVERSITY (FRAGMENTS OF THE HISTORY

Статья к 60-ЛЕТИЮ СОЗДАНИЯ ФИЗИЧЕСКОГО ФАКУЛЬТЕТА САРАТОВСКОГО ГОСУДАРСТВЕННОГО УНИВЕРСИТЕТА ИМ. Н.Г. ЧЕРНЫШЕВСКОГО 

Molecular Modeling and Vibrational Spectra of 4,4,’-clorobenzophenone

Vibrational infrared and Raman spectra of 4,4’-chlorobenzophenone have been measured at room temperature in the ranges 400–3200 and 0–3200 cm−1 respectively. Modeling of structure and vibrational spectra has been performed by a density functional theory method B3LYP/6-31+g(d) and 6-31-g(d). Energy, structure, components of the dipole moment and polarizability tensor, force constants, frequencies of normal modes in harmonic approximation and their intensities in the IR and Raman activity have been calculated. Interpretation of measured spectra is given.

AD HOC Quantization of the Electromagnetic Momentum for a Dispersive Medium

Background and Objectives: There are two types of linear field momentum in the macroscopic electrodynamics: Minkowski momentum, and Abraham momentum. The first is conserved inside the uniform substance, the second is included into the momentum balance in relation to the center of energy. These two quantities must comply with two measures of photon momentum. Unfortunately, the ad hoc quantization of the Minkowski momentum in dispersive medium leads to the theoretical photon momentum, which differs from the observed momentum.

IR Spectra of Triphenyl Phosphite and Their Interpretation by Molecular Modeling

Background and Objectives: IR spectra of triphenyl phosphite (TPhPh) were measured in liquid (at 320 K), glassy and glacial phases and in hexagonal (metastable) and monoclinic (stable) crystal phases at 12 K. The observed differences in the spectra is a consequence of the implementation of the conformers of different types in the sample. To substantiate this hypothesis, structurally dynamic models of the three most probable conformers (I –III) were built. The conformers are different in angles of rotation of the phenyl rings around the C-O bonds.

Modeling of Vibrational Spectra of L-tryptophan in Condensed States

Background and Objectives: This work is devoted to the interpretation of IR and Raman spectra of Trp in the condensed states. For this purpose, we calculated the complexes in the zwitterionic form of Trp with the water molecules. Obtained results allow us to determine the influence of hydrogen bonds on the vibrational spectra of Trp in the aqueous solution and solid state.

Electromagnetic Momenta at Wave Refraction into Dispersive Medium

Background and Objectives: There are two types of a field momentum in the classical electrodynamics, namely, the Abraham momentum, and the Minkowski momentum. The question arises how these momenta are conserved in the refraction on the boundary surface of a medium.

Methods: The electromagnetic stress tensor and momentum density in a dispersive medium, including the case of negative permittivity and negative permeability, are derived and used in this paper.

Effect of Secondary Particles with High Linear Energy Transfer on Photon Beam Quality Factor

The energy dependence is investigated for a monoenergetic photon radiation quality factor with energies up to 40 MeV, while passing through a thin layer. The conditions of irradiation simulate radiobiological experiments to determine the relative biological eectiveness. The quality factor is calculated on the basis of data on linear energy transfer of all the particles in the irradiated layer, which are calculated using the Monte–Carlo method using GEANT4 code.

Calculation and Approximation of Radial Dose Function of Iridium Sources

Background and Objectives: The purpose of this paper is to investigate optimal fitting parameters for approximating radial dose function of Iridium sources. Calculations were performed using written by authors source code based on GEANT4 library package designed to simulate particle transport processes using Monte–Carlo method. Results: Following parameters of the source were determined: dose rate constant, radial dose function and anisotropy function. Obtained satisfactory coherence with other researchers’ data.

Minimal Quark-Lepton Symmetry Model and Its Manifestations at Low Energies

Background and Objectives: The four color symmetry of quarks and leptons predicts scalar leptoquarks along with vector leptoquarks. If the scale of the violation of four-color symmetry is associated with the masses of vector leptoquarks and, as recently shown, can be about 100 TeV, the mass of scalar leptoquarks can be much smaller. Numerical values of additional fermionic mixing matrices were obtained in the study of restrictions on the mass of vector leptoquarks from leptonic decays KL0 and B0, BS0 bosons.

Waveguide-dielectric Resonance in Systems with Nanometer Metal Layer on Dielectric Substrate

High sensitivity of an electromagnetic wave transmission spectra to change the thickness of the nanometer metal layers on dielectric plates in the case of the waveguide-dielectric resonance emergence due to the waveguide cross section is partially filled across the width and asymmetrically occupied relative to its middle by the investigated structure has been established.

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