391 research outputs found
Complementary methods for the prevention and treatment of stress-induced mastopathy
The article considers the relationship between stress and diseases of the female reproductive system. A method for the rehabilitation of patients with mastopathy resulting from psycho-emotional stress (stress) based on the use of complementary methods of prevention and medical rehabilitation is proposed
THE RELATIONSHIP OF PERSONAL CHARACTERISTICS WITH THE TENDENCY TO DEVIANT BEHAVIOR IN STUDENTS
Currently, there is an increase in the deviant behavior of students in Russia. Numerous studies are aimed at studying the causes of deviations of adolescents and young men. This is due to the urgency of identifying certain personality characteristics of students with deviant behavior.
Purpose: to study the relationship between the tendency to deviant behavior and certain personality traits of adolescent and adolescent students.
Methods. The methodology of “Determining the tendency to deviant behavior” by A. N. Orel, 16-factor personality questionnaire by R. B. Cattell, the methodology of “Diagnostics of the real structure of value orientations of personality”, author S. S. Bubnov. Statistical methods of processing the results of empirical research in the STATISTICA program were used.
Results. We have revealed the relationship of high indicators on the scale of the attitude to socially desirable responses according to the method of “Determining the propensity for deviant behavior” by A. N. Orel with the peculiarities of the verbal intelligence of the respondents. The tendency to overcome norms and rules has a connection with nonconformism, a tendency to addictive behavior, weak volitional control of emotional reactions and a tendency to delinquent behavior are associated with verbal intelligence. The tendency to self-harming and self-destructive behavior, as well as the tendency to aggression and violence are interrelated with such a personality trait as radicalism.
Conclusion. The conducted research proves the relationship of the tendency to deviant behavior of students with certain traits of their personality.
Practical implications. The results allow us to evaluate some personality traits of students with deviant behavior and provide opportunities for developing approaches to their psychological and pedagogical support
Reactive Rayleigh-Taylor Turbulence
The Rayleigh-Taylor (RT) instability develops and leads to turbulence when a
heavy fluid falls under the action of gravity through a light one. We consider
this phenomenon accompanied by a reactive transformation between the fluids,
and study with Direct Numerical Simulations (DNS) how the reaction (flame)
affects the turbulent mixing in the Boussinesq approximation. We discuss "slow"
reactions where the characteristic reaction time exceeds the temporal scale of
the RT instability. In the early turbulent stage, effects of the flame are
distributed over a maturing mixing zone, whose development is weakly influenced
by the reaction. At later times, the fully mixed zone transforms into a
conglomerate of pure-fluid patches of sizes proportional to the mixing zone
width. In this "stirred flame'' regime, temperature fluctuations are consumed
by reactions in the regions separating the pure-fluid patches. This DNS-based
qualitative description is followed by a phenomenology suggesting that thin
turbulent flame is of a single-fractal character, and thus distribution of the
temperature field is strongly intermittent.Comment: 14 pages, 4 figure
Mixing and reaction efficiency in closed domains
We present a numerical study of mixing and reaction efficiency in closed
domains. In particular we focus our attention on laminar flows. In the case of
inert transport the mixing properties of the flows strongly depend on the
details of the Lagrangian transport. We also study the reaction efficiency.
Starting with a little spot of product we compute the time needed to complete
the reaction in the container. We found that the reaction efficiency is not
strictly related to the mixing properties of the flow. In particular, reaction
acts as a "dynamical regulator".Comment: 11 pages, 10 figure
On the existence of traveling waves in the 3D Boussinesq system
We extend earlier work on traveling waves in premixed flames in a
gravitationally stratified medium, subject to the Boussinesq approximation. For
three-dimensional channels not aligned with the gravity direction and under the
Dirichlet boundary conditions in the fluid velocity, it is shown that a
non-planar traveling wave, corresponding to a non-zero reaction, exists, under
an explicit condition relating the geometry of the crossection of the channel
to the magnitude of the Prandtl and Rayleigh numbers, or when the advection
term in the flow equations is neglected.Comment: 15 pages, to appear in Communications in Mathematical Physic
Ultimate photo-induced Kerr rotation achieved in semiconductor microcavities
Photoinduced Kerr rotation by more than radians is demonstrated in
planar quantum well microcavity in the strong coupling regime. This result is
close to the predicted theoretical maximum of . It is achieved by
engineering microcavity parameters such that the optical impedance matching
condition is reached at the smallest negative detuning between exciton
resonance and the cavity mode. This ensures the optimum combination of the
exciton induced optical non-linearity and the enhancement of the Kerr angle by
the cavity. Comprehensive analysis of the polarization state of the light in
this regime shows that both renormalization of the exciton energy and the
saturation of the excitonic resonance contribute to the observed optical
nonlinearities.Comment: Shortened version prepared to submit in Phys. Rev. Letter
Self-Similarity and Universality in Rayleigh-Taylor, Boussinesq Turbulence
We report and discuss case study simulations of the Rayleigh-Taylor
instability in the Boussinesq, incompressible regime developed to turbulence.
Our main focus is on a statistical analysis of density and velocity
fluctuations inside of the already developed and growing in size mixing zone.
Novel observations reported in the manuscript concern self-similarity of the
velocity and density fluctuations spectra inside of the mixing zone snapshot,
independence of the spectra of the horizontal slice level, and universality
showing itself in a virtual independence of the internal structure of the
mixing zone, measured in the re-scaled spatial units, of the initial interface
perturbations.Comment: 10 pages, 11 figure
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