Dynamics of parameters of bioelectrical activity of muscles in response to different static forces

2015 ◽  
Vol 9 (4) ◽  
pp. 0-0
Author(s):  
Горбунов ◽  
D. Gorbunov ◽  
Эльман ◽  
Kseniya Elman ◽  
Гавриленко ◽  
...  
Keyword(s):  
Chaos Theory ◽  
High Efficiency ◽  
Stochastic Approach ◽  
Self Organization ◽  
Bioelectrical Activity ◽  
Static Loads ◽  
Main Research ◽  
Recorded Signal ◽  
Extensor Muscles ◽  
Little Finger

This article presents the methods of analysis of the dynamics of bioelectrical activity of the flexor muscles of the little finger of his right hand as a reaction to the static force in compression dynamometer, manifested in changes of the quasi-attractors parameters. The main research methods were deterministicstochastic methods and methods of the chaos theory and self-organization to describe complex biological systems. The authors present a comparative analysis of calculating the parameters of the obtained results, in particular, in the framework of the chaos theory and self-organization - the calculations of the phase plane and their areas; in the framework of the deterministic-stochastic approach - the calculation of the Shannon entropy. Calculations are aimed at assessing the level of randomness of the recorded signal. Analysis of the recorded signal and the evaluation of the level of randomness in a signal of bioelectrical activity of muscles showed that an increase in the static load quasi-attractors bioelectric muscle activity increases dramatically. The degree of change was estimated by calculating the parameters of quasi-attractors according to the chaos theory and self-organization. The changes of state of the system in the direction of increasing the degree of variability in the bioelectric activity of the extensor muscles of the little finger are demonstrated. The high efficiency of application of the chaos theory and self-organization in the assessment of the neuromuscular human system is showed. The obtained results allow to determining the level of the ability of performing the specified operations under the influence of static loads.

Analysis of Myograms Acording to the Stochastics and the Chaos Theory – Self-Organization

2015 ◽  
Vol 22 (2) ◽  
pp. 32-38
Author(s):  
Григоренко ◽  
V. Grigorenko ◽  
Горбунов ◽  
D. Gorbunov ◽  
Еськов ◽  
...  
Keyword(s):  
Phase Space ◽  
Shannon Entropy ◽  
Chaos Theory ◽  
The State ◽  
Biomechanical Analysis ◽  
Self Organization ◽  
Biological Research ◽  
Dimensional Phase Space ◽  
Low Load ◽  
Little Finger

The paper shows the feasibility of applying the method of multi-dimensional phase space as a quantitative measure for the evaluation of chaotic dynamics on the example of the muscles (flexor of the little finger). The method of multi-dimensional phase space was used. In the study and modeling of complex biological objects (complexity) there is the possibility of introducing traditional physical methods in biological research and new methods based on the chaos theory and self-organization. As a measure of the state of the neuromuscular system of the person (weak muscle tension and strong, almost the maximum force), the authors used quasi-attractors volumes of multidimensional phase space. This enables identification of the actual measurements of the parameters of the functional state with weak muscles (Fi = 5 daN) and strong (Fi = 10 daN) static stress. The authors built a timebase signal received from the electromyograph and the autocorrelation function A(t) of signal. A biomechanical analysis of the state of the system is carried out on the basis of comparison of the volume VG quasi attractor, as well as on the basis of the analysis of the Shannon entropy E. Volume of quasi attractor VG displacements under low load is slightly less than the same volume displacement VG with strong exertion of the muscles of the flexor of the little finger, exactly the same as the values of the Shannon entropy under a heavy load increases compared to the values obtained under low load the muscles.

Statistical and evaluation chaotic parameters under cardio exertion

2015 ◽  
Vol 4 (2) ◽  
pp. 5-10
Author(s):  
Филатова ◽  
D. Filatova ◽  
Карпин ◽  
Vladimir Karpin ◽  
Еськов ◽  
...  
Keyword(s):  
Phase Space ◽  
Cardiovascular System ◽  
Chaos Theory ◽  
Chaotic Dynamics ◽  
Stochastic Approach ◽  
Dynamic Exercise ◽  
Self Organization ◽  
Dimensional Phase Space ◽  
Classical Statistics ◽  
Fitness Indicators

Methods of classical statistics and the theory of chaos and self-organization studied the behavior of the vector of the cardiovascular system in groups of students trained and untrained in response to dosed physical stress .It was found that students without physical fitness indicators of cardio area quasi-attractors increased after exercise . The study had shown significant changes in the dynamics of the behavior of the parameters of functional systems of the human body compared to the stochastic approach based on the histogram and Shannon entropy . It is shown the feasibility of application of chaos theory, self-organization in the evaluation of the reaction of the cardiovascular system of the person on the dynamic exercise. As a measure of the cardiovascular system of the person (to load and after the load) used quasi-attractor motion of the state vector of the system in the two-dimensional phase space of states. Within the framework of the theory of chaos and self-organization may determine the parameters of the spacecraft for individual subjects and their groups to compare their chaotic dynamics in time or in the phase space of states.

Thermodynamic Method in Analyzing of the Parameters Bioelectrical Muscles at Different Static Loads

2015 ◽  
Vol 22 (4) ◽  
pp. 7-12
Author(s):  
Майстренко ◽  
E. Maystrenko ◽  
Черников ◽  
N. Chernikov ◽  
Горбунов ◽  
...  
Keyword(s):  
Physiological State ◽  
Stochastic Approach ◽  
Stochastic Methods ◽  
Bioelectric Activity ◽  
Static Loads ◽  
Recorded Signal ◽  
Functional States ◽  
Low Efficiency ◽  
Bioelectric Potentials ◽  
Increasing Load

The comparative analysis of the dynamics of changes in the bioelectric activity of muscles in response to changes in static stress in the muscle is presented. As the main result of this study after an data analysis obtained by the methods of the chaos theory and self‐organization to describe complex biological systems, it was established low efficiency of deterministic‐stochastic approach. Shannon entropy calculation is performed in different functional states of the muscles. Analysis of the recorded signal and evaluation of randomness in the recorded signal of electro‐myograms showed that with increasing load the size of quasiattractors of the recorded bioelectric potentials of the muscles increases dramatically, but the results of the analysis based on the calculation of the entropy, i.e. the thermodynamic approach, are statistically insignificant. The results allow to conclude that deterministic‐stochastic methods (in particular, the thermodynamic methods) in the assessment of electro‐myograms have low efficiency, and should be used for calculating the area quasi‐attractors of S in evaluating the physiological state of the human body (its homeostasis).

Shocks vs. Impulse-Propagation Model of Economic Dynamics

2021 ◽  
pp. 1-28
Keyword(s):  
Business Cycle ◽  
Wave Theory ◽  
Stochastic Approach ◽  
Propagation Model ◽  
Self Organization ◽  
Scientific Contribution ◽  
Economic Dynamics ◽  
New Approach ◽  
Self Development ◽  
Random Fluctuations

Ragnar Frisch, the Nobel prizer in economics, drew attention to two phenomena: propagation problems and impulse problems in dynamic economics. His deep scientific contribution relates to the interpretation of business cycle transformed under the influence of impulses (shocks). But some terminological misunderstandings arose. One of them forced the authors to focus on the phenomenon of systems' self-movement: their self-organization in statics and their self-development in dynamics. Another one relates to exogenous nature of impulses (shocks) that forced the authors to prove the endogenous embeddedness of shocks into the mechanisms of dialectical laws implementation. Eugen Slutsky demonstrated the stochastic approach as to random fluctuations as a source of cyclical processes in the economy. The confusion in the concepts of cycles and waves predetermines the need to create a wave theory of systemic self-organization (Chapter 2). Modern shocks theory develops a new approach which makes it possible to eliminate misconceptions of past theories.

scholarly journals Chaos, Complexity, and Contingency Theories: A Comparative Analysis and Application to the 21st Century Organization

2020 ◽  
Vol 9 (1) ◽  
pp. 44
Author(s):  
Franklin M. Lartey
Keyword(s):  
Complexity Theory ◽  
21St Century ◽  
Chaos Theory ◽  
Self Organization ◽  
Organizational Leaders ◽  
Unexpected Events ◽  
Regulatory Changes ◽  
Starting Point ◽  
Key Concepts ◽  
Organizational Purpose

Organizations in the 21st century deal with constant changes such as globalization, technological evolutions, regulatory changes, competition, and other unexpected events, among others. These challenges can be viewed and addressed through the lenses of contemporary theories. This paper selected three contemporary theories namely chaos, complexity, and contingency theories, and presented their foundations and characteristics by comparing and contrasting their key concepts. These concepts include nonlinearity, feedback, bifurcation, strange attractors, fractals, and self-organization for chaos theory; nonlinearity, dynamism, feedback, self-organization, emergence, and adaptability for complexity theory; and adaptation, equifinality, effectiveness, and congruency for contingency theory. Examples of studies and organizational applications of these theories were provided, and implications for scholars and organizational leaders were discussed. By explaining notions such as how the capacity of a system could be greater than the sum of the capacities of its subunits, this paper can act as a starting point for anyone seeking to understand the three theories or use them for research or organizational purpose.

scholarly journals Cooperation and spatial self-organization determine rate and efficiency of particulate organic matter degradation in marine bacteria

2019 ◽  
Vol 116 (46) ◽  
pp. 23309-23316 ◽  
Author(s):  
Ali Ebrahimi ◽  
Julia Schwartzman ◽  
Otto X. Cordero
Keyword(s):  
Organic Matter ◽  
Public Goods ◽  
Social Interactions ◽  
Particulate Organic Matter ◽  
High Efficiency ◽  
Cell Aggregation ◽  
Self Organization ◽  
Turnover Rates ◽  
Particulate Carbon ◽  
Hydrolysis Of

The recycling of particulate organic matter (POM) by microbes is a key part of the global carbon cycle. This process is mediated by the extracellular hydrolysis of polysaccharides, which can trigger social behaviors in bacteria resulting from the production of public goods. Despite the potential importance of public good-mediated interactions, their relevance in the environment remains unclear. In this study, we developed a computational and experimental model system to address this challenge and studied how the POM depolymerization rate and its uptake efficiency (2 main ecosystem function parameters) depended on social interactions and spatial self-organization on particle surfaces. We found an emergent trade-off between rate and efficiency resulting from the competition between oligosaccharide diffusion and cellular uptake, with low rate and high efficiency being achieved through cell-to-cell cooperation between degraders. Bacteria cooperated by aggregating in cell clusters of ∼10 to 20 µm, in which cells were able to share public goods. This phenomenon, which was independent of any explicit group-level regulation, led to the emergence of critical cell concentrations below which degradation did not occur, despite all resources being available in excess. In contrast, when particles were labile and turnover rates were high, aggregation promoted competition and decreased the efficiency of carbon use. Our study shows how social interactions and cell aggregation determine the rate and efficiency of particulate carbon turnover in environmentally relevant scenarios.

Research Status and Prospect of Dish-Stirling System

2014 ◽  
Vol 953-954 ◽  
pp. 83-86 ◽  
Author(s):  
Lin Jun Wang ◽  
Li Xiao Xu ◽  
Jing Men ◽  
Dong Zhang ◽  
Zhang Wei Gao ◽  
...  
Keyword(s):  
Power Generation ◽  
Simple Structure ◽  
High Efficiency ◽  
Low Cost ◽  
Thermal Power ◽  
Low Noise ◽  
Green Energy ◽  
Main Research ◽  
Power Generation System ◽  
Solar Thermal Power Generation

Solar energy is a kind of clean and green energy, its use can reduce the dual pressure of resources and environmental pollution. Firstly, this paper introduces groove, tower and dish type solar thermal power generation system. Then it introduces the components of dish-stirling system and the principle and features of stirling engine. The system has simple structure, reliable operation, high efficiency, low noise, low cost of power generation and good commercial prospects. But for some key parts of system, there are many problems that need to be solved. The main research of dish-stirling system is to optimize the key parts of system and reduce the system costs.

Instability and Uncertainty of Human Life Way Development at Life Bifurcuration Points

2020 ◽  
pp. 9-12
Author(s):  
A.V. Rukin
Keyword(s):  
Research Methods ◽  
Scientific Explanation ◽  
Human Life ◽  
Self Organization ◽  
Necessary Condition ◽  
Way Of Life ◽  
Complex Objects ◽  
Main Research ◽  
Life Path ◽  
Definition Of

Man and his individual way of life are the most complex objects of scientific research. In modern humanitarian knowledge, the question of the nature of man and his life path is debatable. The article continues the cycle of author's works devoted to the development of an informational approach to self-organization of a person and his life path. The relevance of the study is due to the need for a scientific explanation of the phenomena of self-organization in the development of human life. The purpose of this work is to identify the effect of instability and uncertainty on the development of a person’s life path at points of vital bifurcation. The article gives the author’s definition of a person’s life path, analyzes the existence of a person in conditions of intrapersonal instability and uncertainty, and the development of human life at points of vital bifurcation. The results of the study allow us to consider instability and uncertainty as a necessary condition for the emergence of processes of self-organization of a person’s life path at the point of vital bifurcation. The main research methods are reflection and modeling.

Non-stationary stationarity in systems of third type and philosophy of instability

2015 ◽  
Vol 4 (2) ◽  
pp. 65-74
Author(s):  
Гавриленко ◽  
T. Gavrilenko ◽  
Еськов ◽  
Valeriy Eskov ◽  
Еськов ◽  
...  
Keyword(s):  
Dynamical Systems ◽  
Complex Systems ◽  
Biological Systems ◽  
Deterministic Chaos ◽  
Stochastic Approach ◽  
Distribution Functions ◽  
Self Organization ◽  
Deterministic Approach ◽  
The Third ◽  
Specific Assessment

There are several criteria in science for stationarity (stability) of different dynamical systems. The stationarity in physics, engineering and chemistry is being interpreted as matching the requirements of dx/dt=0, where x=x(t) - is the vector of system’s state, or the equality of distribution functions f(x) for different samples which characterize the system. However, in case of social or biological systems the matching of the requirements is impossible and there is a problem of specific assessment of stationary regimes of complex systems of the third type. The possibility of studying of such systems within the frame of deterministic chaos, stochastic approach and theory of chaos and self-organization is being discussed. This article explains why I.R. Prigogine refused from materialistic (in fact deterministic) approach in the description of such special systems of third type and tried to get away from the traditional science in the description of biological systems.

Sign in / Sign up

Export Citation Format

Share Document