NEUROCOMPUTER use in an assessment of chaotic dynamics of parameters of neuromuscular system of the person at various acoustic influences

10.12737/5515 ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 13-28
Author(s):  
Нехайчик ◽  
S. Nekhaychik ◽  
Козлова ◽  
V. Kozlova ◽  
Берестин ◽  
...  

The behavior of the human body state vector (for example, the reaction of tremoro-gram parameters) in response to different acoustic impacts (white noise, rhythmic music, classical music, hard rock) was studied by using the methods of neurocomputing. We showed the distinctions in the estimation of the behavioral dynamics of the parameters of the neuromuscular system, such as various motor reaction (tremor) of the left and right hands on the acoustic impact. The common regularities in the dynamics of behavior parameters of tremor at various acoustic impact on Surgut students hands were revealed. The analysis of quasi-attractors of differentiated reactions of left and right hands using neural emulators showed significant distinction on different types of acoustic impacts. Asymmetry of motor responses from the standpoint of the theory of chaos and self-organization was more marked than according to the stochastic approach. Neural emulator demonstrated the significance of all impacts on tremor parameters (system synthesis problem is being solved).

10.12737/4987 ◽  
2014 ◽  
Vol 21 (2) ◽  
pp. 6-10
Author(s):  
Козлова ◽  
V. Kozlova ◽  
Еськов ◽  
Valeriy Eskov ◽  
Хадарцев ◽  
...  

A behavior of a human body state vector (for example, a reaction of tremorogramm parameters) in response to different acoustic effects (white noise, rhythmic music, classical music, hard rock) was studied using the statistical methods of the theory of chaos and self-organization. The authors showed the distinctions in estimation of behavioral dynamics of the neuromuscular system parameters, such as various motor reaction of the left and right hands to the acoustic effect. The common regularities in the dynamics of the neuromuscular system parameters behavioral parameters at various acoustic effects were revealed in Surgut students analyzing the differential responses of the left and right hands. Increased sizes of quasi-attractors of the right hand (under acoustic effects) and variations of quasi-attractors parameters of a left hand proved it. Simultaneously, tremor indicators for left and right hands differ (in 2-3 times). Asymmetry of motor responses from the standpoint of the theory of chaos and self-organization were more marked than according to the stochastic approach.


2015 ◽  
Vol 22 (3) ◽  
pp. 20-25
Author(s):  
Буров ◽  
I. Burov ◽  
Поскина ◽  
T. Poskina ◽  
Филатова ◽  
...  

Using stochastic methods (calculation of the Shannon entropy) and methods of traditional statistics the authors have studied the response of the neuromuscular system to different acoustic effects (white noise, rhythmic music, classical music, hard-rock). In the case of acoustic stimulation on the auditory analyzer, the authors used an approach based on the analysis of the Shannon entropy of the parameters of the neuromuscular system (postural tremor) with simultaneous registration of tremorogramm left and right hands of the subjects (in terms of sound exposure). This influence played a role of perturbing factor for the system control of muscle movements (and muscle activity) through a change in psycho-physiological state of the subject. The developed method of matrix analysis provides identification of systems with chaotic organization, which has been demonstrated in this article by analyzing tremorogramm left and right hands of the subjects under different acoustic effects. The authors propose a new method to assess the functional asymmetry of motor function of a person.


Author(s):  
William P. Wergin ◽  
Eric F. Erbe

The eye-brain complex allows those of us with normal vision to perceive and evaluate our surroundings in three-dimensions (3-D). The principle factor that makes this possible is parallax - the horizontal displacement of objects that results from the independent views that the left and right eyes detect and simultaneously transmit to the brain for superimposition. The common SEM micrograph is a 2-D representation of a 3-D specimen. Depriving the brain of the 3-D view can lead to erroneous conclusions about the relative sizes, positions and convergence of structures within a specimen. In addition, Walter has suggested that the stereo image contains information equivalent to a two-fold increase in magnification over that found in a 2-D image. Because of these factors, stereo pair analysis should be routinely employed when studying specimens.Imaging complementary faces of a fractured specimen is a second method by which the topography of a specimen can be more accurately evaluated.


Author(s):  
Daniel Halliday

This chapter considers various arguments both for and against taxing inherited wealth, each of these being associated with some or other type of libertarian outlook. Libertarianism in the Lockean guises (‘left’ and ‘right’ varieties) is distinguished from its classical liberal alternative, which downplays the Lockean emphasis on private property rights in favour of a more defeasible case for small government and low taxation. These different perspectives generate a variety of quite different arguments about inheritance, some more persuasive than others. Some attention is paid to the common claim that inheritance taxes ‘punish’ virtue and generosity. It is then argued that a Rignano scheme may be particularly attractive in light of certain left-libertarian commitments and as a way of accommodating a classical liberal concern about perpetual savings.


Author(s):  
J. N. Carruthers

In July–August of three different years common surface-floating bottles were set adrift at International Station E2 (49° 27' N.—4° 42' W.). With them, various types of drag-fitted bottles were also put out. The journeys accomplished are discussed, and the striking differences as between year and year in the case of the common surface floaters, and as between the different types in the same year, are commented upon in the light of the prevailing winds. An inter-relationship of great simplicity is deduced between wind speed and the rate of travel of simple surface floating bottles up-Channel and across the North Sea from the results of experiments carried out in four different summers.


1991 ◽  
Vol 106 (3) ◽  
pp. 459-465 ◽  
Author(s):  
F. E. Donald ◽  
R. C. B. Slack ◽  
G. Colman

SUMMARYIsolates of Streptococcus pyogenes from vaginal swabs of children with vulvovaginitis received at Nottingham Public Health Laboratory during 1986–9 were studied. A total of 159 isolates was made during the 4 years, increasing from 17 in 1986 to 64 in 1989 and accounting for 11% of all vaginal swabs received from children. The numbers of throat swabs yielding S. pyogenes also showed an increase from 974 in 1986 to 1519 in 1989. A winter peak of isolates was noted for both vaginal swabs and throat swabs. A total of 98 strains from vaginal swabs were serotyped: 22 different types were identified, 61% of which were the common types M4, M6, R28 and M12. Erythromycin sensitivity was done on 89 strains; 84% were highly sensitive (MIC < 0·03 mg/1). There are no other reports of such large numbers in the literature; the reason for seeing this increase in Nottingham is unclear.


2021 ◽  
Vol 17 (1) ◽  
pp. 155-161
Author(s):  
Petar MARINOV

Abstract: Terrorism as a phenomenon has a complex structure in which ideological, social, religious, ethnic, psychological and other elements are intertwined. Modern terrorism is a complex and dynamic phenomenon that successfully adapts to the political and economic situation. Effective counteraction is beyond the power of any independent specialized institution or individual country. Understanding of the concept of terrorism is linked to the analysis of the common features of modern terrorism. Based on the content of ideology and motivation, as well as the specifics of the methods of action, there are differences between terrorism based on left and right ideologies, on nationalism and separatism, and with different religious motivations.  


2018 ◽  
Vol 61 (4) ◽  
pp. 430-446 ◽  
Author(s):  
Fred Bronner ◽  
Robert de Hoog

Consumer behavior recently underwent three main developments: a shift from material purchases to immaterial experiences, a shift from signaling status and wealth by means of consumer behavior to signaling identity, and increased social visibility due to the growing importance of social media. These trends did arouse a renewed interest in the concept of conspicuous consumption in the area of experiential purchases. Seven different types of experiential purchases are compared as regards the role of conspicuous consumption: the main summer holiday and participation in six different types of cultural events. In the culture study, the same measurement tools were used as in the leisure study. It was found that conspicuous consumption plays a role in these types of purchases. This holds true for status demonstration as well as for identity demonstration. However, there are substantial differences between the different types of cultural events. Conspicuous consumption is important to those who attend festivals, classical music concerts, and pop concerts and is of minor importance as regards going to movies. Based on these findings, we propose a tentative theory about the relationship between conspicuous consumption and type of experiential purchase. Practical implications for marketing are sketched out. In cultural marketing for museums, the performing arts, and cinema, attention should be paid not only to the quality of the event for the self-experience, but also to its status and identity-signaling potential to relevant others.


Author(s):  
Tianwei Geng ◽  
Hai Chen ◽  
Di Liu ◽  
Qinqin Shi ◽  
Hang Zhang

Exploring and analyzing the common demands and behavioral responses of different stakeholders is important for revealing the mediating mechanisms of ecosystem service (ES) and realizing the management and sustainable supply of ES. This study took Mizhi County, a poverty-stricken area on the Loess Plateau in China, as an example. First, the main stakeholders, common demands, and behavioral responses in the food provision services were identified. Second, the relationship among stakeholders was analyzed. Finally, this study summarized three types of mediating mechanisms of food provision services and analyzed the influence of the different types of mediating mechanisms. The main conclusions are as follows: (1) Five main stakeholders in the study area were identified: government, farmers, enterprises, cooperatives, and middlemen. (2) Increasing farmers’ income is the common demand of most stakeholders in the study area, and this common demand has different effects on the behavioral responses of different stakeholders. (3) There are three types of mediating mechanisms in the study area: government + farmers mediating corn and mutton, government + enterprises mediating millet, and government + cooperatives mediating apples. On this basis, the effects of the different types of mediating mechanisms on variations in food yield, and trade-offs and synergies in typical townships, were analyzed.


2021 ◽  
Author(s):  
András Hajdu ◽  
György Terdik ◽  
Attila Tiba ◽  
Henrietta Tomán

AbstractEnsemble-based methods are highly popular approaches that increase the accuracy of a decision by aggregating the opinions of individual voters. The common point is to maximize accuracy; however, a natural limitation occurs if incremental costs are also assigned to the individual voters. Consequently, we investigate creating ensembles under an additional constraint on the total cost of the members. This task can be formulated as a knapsack problem, where the energy is the ensemble accuracy formed by some aggregation rules. However, the generally applied aggregation rules lead to a nonseparable energy function, which takes the common solution tools—such as dynamic programming—out of action. We introduce a novel stochastic approach that considers the energy as the joint probability function of the member accuracies. This type of knowledge can be efficiently incorporated in a stochastic search process as a stopping rule, since we have the information on the expected accuracy or, alternatively, the probability of finding more accurate ensembles. Experimental analyses of the created ensembles of pattern classifiers and object detectors confirm the efficiency of our approach over other pruning ones. Moreover, we propose a novel stochastic search method that better fits the energy, which can be incorporated in other stochastic strategies as well.


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