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Interpretaion of Vibrational State for Trinitrophenol Isomers and Conformers

On the base of modeling calculations of geometric and electronic structure for trinitrophenol the interpretation of vibrational spectra are propoused.

From the Principle of Landauer to the Computer of Landauer

In this article questions of the Landauer’s principle application to classical computers are discussed. It is shown that this is connected mainly with the assumption of isothermal condition of switch cells’ (processor’s registers) working. It leads from previous author’s works that this is not true for classical computers. Comparison with data for CISC-processors confirms that processors are working at conditions far from isothermal ones.

Application of Two-fluid Model for Flow Treating in Pipes of Circle Profile

Two-liquid model for description of flows in tubes of circle profile is presented. This model explains well-known experimental fact which consists of growth (approximately in 2 degrees) of critical Reynolds number at which transfer to turbulent regime takes place in comparison with tubes of other profiles. A special characteristic of this model is a set of vortices which separates flow from walls of tube. An electromagnetic analogy with infinitely long solenoid is used for determination of flows’ parameters.

Photoactivated Disinfection in Treatment of Dental Pathology

The results of treatment and prevention in preschool children with inflammatory periodontal diseases. incorporating the lessons of oral hygiene, controlled cleaning of teeth and use of the device «Fotosan». After a preliminary analysis of the oral cavity (OHI-S, PMA), the children of the study were divided into two subgroups, one of which lasted for controlled cleaning of teeth, in the other - combined with the use of photoactivated disinfection. After application of photoactivated disinfection dynamics analysis allowed us to establish the PMA index decreased in preschool children by 92%.

Statistics of Poincare Recurrence with Considering Effect of Fluctuations

The basic statistical characteristics of Poincare recurrence are obtained numerically for the logistic map in a chaotic regime. The mean values, variation and recurrence distribution density are calculated and their dependence on a return size is analysed. Afraimovich–Pesin dimension values are obtained. It is verified that the Afraimovich–Pesin dimension corresponds to the Lyapunov exponent. the peculiarities of the influence of noise on the recurrence statistics are studied in local and global approaches.

Completeness’ Problem of Being Transmitted Information

This article presents an investigation of completeness’ problem of information transmitted by spherical electromagnetic wave from source to receiver. A space–time curvature caused by electromagnetic wave is an origin that influences on completeness. It is shown that that curvature has two parts, gravitational and diffractional ones. Light beam scattering parameters such as scattering angle and capture cross-section due to curvature of space-time are evaluated.

Investigating Stationary Conditions for Moments of Stochastic Process, Driven by Multiplicative Dichotomous Noise and Featuring Erlang First-order Distribution Function, Conditions Related by Golden Ratio

Conditions for the existence of stationary moments of a stochastic process, satisfying a linear differential stochastic first-order equation, comprising a coefficient, subjected to non-Markov dichotomous noise fluctuations with an arbitrary correlation time, are investigated. It is shown that the existence of stationary moments is related to the golden ratio tying the parameters of the dynamic system and dichotomous noise.

Application of Atomic Force Microscopy for Detection of Influence of Antibiotic Upon the Microbial Cell (on the Model of E.coli and I Generation Cephalosporins)

Alteration of E.coli cell wall caused by Cefazolin-AKOS was observed atomic force microscopy (AFM). Using semi-contact and contact modes the damaging effect of the Cefazolin-AKOS antibiotic was shown after a 30 minutes exposure. The assessment of physical parameters of cell allow to get more detailed information on the effect of antibiotics on microorganisms.

Intensity of Spectral Lines Perturbed Vibrational Transitions States of the Main Absorption Bands Polyatomic Molecules

Based on the analytic perturbation theory of linear operators using the method of constructing holomorphic functions for transforming the vibrational-rotational Hamiltonian. Built operator function is used to investigate the excited vibrational states and transitions between them. Formulas are obtained for the matrix elements and the absolute intensities of the spectral lines as a function of rotational and vibrational quantum numbers for the main bands of infrared absorption spectra of polyatomic molecules.

System’s Analysis of Vibrational Spectra in Dimmers of 5X-Substituted Uracile

On based of method DFT/b3LYP for parameters of adiabatic potential for the substituted 5X-uraciles (X = CH3, NH2, F, Cl) the theory of characteristic vibration for monomers and dimmers for the regarded class biomolecules are constructed. The indications of spectral identification for dimmers with strong hydrogen bonds are revealed.

A History of One «Artefact»

A history of the phenomenon of fast oscillations of amplitude and momentary frequency of a signal (pulse) propagating in dispersive media is presented. This history is divided on three periods: first, from its discovery in 60-th of XX Century, second, its oblivion up to the end of XX C., and third – its open discussion from the end of XX C. to present days. A theory of the analytical signal is critically discussed. Some unpublished results are presented.

Digital Holographic Interferometry of Microdeformations of the Scattering Objects

The principles of holographic interferometry with recording digital holograms and numerical reconstruction procedure of the complex amplitude of the object wave for the calculation of the field displacement surface of the object being discussed. The scheme design and experimental results of the study are presented. 

Calculation of Atomic Integrals with Exponentialy Correlated Functions

A new type of correlation atomic integrals occurring in variation energy calculations of three-particle Coulomb systems is studied. A integrand in them along with an interparticle distance linear term under an exponent additionally contains a quadratic term. It is demonstrated that these integrals are analytically expressed through Faddeeva function of a pure imaginary argument and its derivatives. A stable and fast algorithm for calculation of Faddeeva function derivatives to the twentieth order is developed. The test values of the studied special functions are provided.

Dynamics of Dual Phase

This article presents dynamics of dual phase, which is connected with dual character of dions – hypothetical particles possessing both electrical and magnetic charges. For description of dual phase the set of equations is received from condition that Maxwell equations conserve their electrical character under dual transformations, what corresponds to effective electrical charge of dion. Some special solutions of these equations for example in vacuum, and in field of electrical dipole are found.

Vacuum Creation of Charged Particles: Some Integral Relations

Dependence on the wave length and the periodical electric field strength of the densities of particle number and energy of the created from vacuum particle-antiparticle plasma of the fermi and bose types had investigated. Analytical and numerical calculations had fulfilled in the leading approximation for the case of rather small fields in comparison with the Schwinger critical field Ec = m2/e.

Current Abilities Investigation Ultrastucture Cells of Microorganisms Using Method Scanning Probe Microscopy

This review presents data about current application of scanning probe microscopy in microbiology research. Methods of scanning probe microscopy belong used to study the ultrastructural and morphological features of microorganisms, their mechanical properties et al. The review also present data about the development methods of scanning probe microscopy to study microorganisms and their communities.

Mathematical Modeling of Endothelium-Induced Smooth Muscle Cell Relaxation

By means of computer modeling we investigate the characteristics of the local mechanisms of regulation of contractile activity of smooth muscle cells. Influence of the endothelium is modeled as the increase of nitric oxide (NO) concentration and subsequent production of cyclic quanosine monophosphate (cGMP). The latter affects the balance of intracellular calcium concentration and, ultimately, the contractile activity of the cell.

A Complex Approach for the Study of Biofilms of Microorganisms by Atomic Force Microscopy

The biofilms of Staphylococcus aureus and Escherichia coli have been investigated by atomic force microscopy (AFM). The usage of complex approach of semi-contact AFM mode has shown that the S. aureus and E. coli biofilms represent an organized community of microorganisms. Semicontact error mode and phase imaging mode investigation of extracellular matrix of S. aureus and E. coli biofilms, confirms dimensions of bacteria and biofilms.

The Conservation Laws and the Densities of Electromagnetic Field Energy and Momentum in Dispersive Media

New general nonstationary balance equations for energy and momentum densities of field–matter system based on rigorous nonstationary approach for their definitions with dependence from the field creation prehistory have been obtained. Also the transport velocities of these densities have been derived. The concrete examination and detailed consideration have been performed for simplest dispersion law which is defined by the conductivity connected with the dissipation.

IR Spectra of Cyclohexanol, Structural-Dynamic Models of Molecule

In wide temperature range IR spectra of cyclohexanol in different phase state (plastic phase, crystal phases II, III) have been measured in range 600–3600 см–1. Using density functional method B3LYP/6-31G structural – dynamic models of conformers of cyclohexanol molecule, which differs from each other by orientation of hydroxyl group relatively carbonic ring and cyclohexan, have been constructed. The energy, structure, dipole moments, polarizabilities and the frequencies of the normal modes in harmonic approximation and IR intensities have been calculated.

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