scholarly journals The Psycho-biophysical Modeling of the some Stress Parameters

2020 ◽  
Vol 7 ◽  
pp. 201-208
Author(s):  
Janos Vincze ◽  
Gabriella Vincze-Tiszay
Keyword(s):  
Negative Feedback ◽  
Immune Regulation ◽  
Human Organism ◽  
Biophysical Modeling ◽  
Normal Reaction ◽  
Action Preparation ◽  
Living Organisms ◽  
Short Time ◽  
Stress Parameters ◽  
Biophysical System

The human organism is a biophysical system. Stress represents a normal reaction of the organism which appears as a response to an aggression situation which requires an unusual and quick adaptation effort from the organism. Stress is a state of putting in alert, of mobilizing the forces of the organism in the occasion of an event which requires, in order to be kept under control, a big amount of energy in a very short time. This alert state or action preparation translated through physical and psychological manifestations. In higher-level living organisms the following forms of regulation are known: biological, nervous, hormonal, humoral and immune regulation. In the case of humans, psychic regulation also appears due to the existence of psychic activity. We study only two forms of the stress: fear and death. We present different biophysical modeling aspects. The stress in the human organism is a pertur­bation. This perturbation is regulates by negative feedback.

scholarly journals Challenges to Breastfeeding among Women Attending the Infant Welfare Clinic in a Selected Primary Health Care Center In Lagos, Nigeria

2020 ◽  
pp. 1-8
Author(s):  
Flo Folami ◽  
Keyword(s):  
Health Care ◽  
Primary Health Care ◽  
Care Center ◽  
Simultaneous Action ◽  
Human Organism ◽  
Biophysical Modeling ◽  
Health Care Center ◽  
Infant Welfare ◽  
Primary Health ◽  
Living Organisms

The transport phenomena mean the variation in time and space of generalized forces when they generate flows for which conservation laws apply. After we describes: mass-, impulse-, energy- and electric-charge-transport and their mathematical characteristic equations. In the living organisms, flows are not generated only by the conjugated generalized forces, but also by the simultaneous action of other forces, so frequencies of the crossing-effects in the human organism. The biophysical modeling offer a „language” of quantitative and qua¬litative process¬sing of expe¬rimental data, being compatible and adequate to the laws of biology.

scholarly journals The Biophysical Modeling of Crossing-Effects in Living Organisms

2020 ◽  
pp. 1-3
Author(s):  
Janos Vincze ◽  
◽  
Gabriella Vincze-Tiszay ◽  
Keyword(s):  
Conservation Laws ◽  
Charge Transport ◽  
Electric Charge ◽  
Transport Phenomena ◽  
Simultaneous Action ◽  
Human Organism ◽  
Biophysical Modeling ◽  
Time And Space ◽  
Characteristic Equations ◽  
Living Organisms

The transport phenomena mean the variation in time and space of generalized forces when they generate flows for which conservation laws apply. After we describes: mass-, impulse-, energy- and electric-charge-transport and their mathematical characteristic equations. In the living organisms, flows are not generated only by the conjugated generalized forces, but also by the simultaneous action of other forces, so frequencies of the crossing-effects in the human organism. The biophysical modeling offer a „language” of quantitative and qua¬litative process¬sing of expe¬rimental data, being compatible and adequate to the laws of biology.

Glycans in Immunologic Health and Disease

2021 ◽  
Vol 39 (1) ◽  
Author(s):  
Julie Y. Zhou ◽  
Brian A. Cobb
Keyword(s):  
Immune Regulation ◽  
Secreted Proteins ◽  
Annual Review ◽  
Publication Date ◽  
Cancer Disease ◽  
Disease States ◽  
Immunological Recognition ◽  
Immunologic Disease ◽  
Health And Disease ◽  
Living Organisms

The surfaces of all living organisms and most secreted proteins share a common feature: They are glycosylated. As the outermost-facing molecules, glycans participate in nearly all immunological processes, including driving host-pathogen interactions, immunological recognition and activation, and differentiation between self and nonself through a complex array of pathways and mechanisms. These fundamental immunologic roles are further cast into sharp relief in inflammatory, autoimmune, and cancer disease states in which immune regulation goes awry. Here, we review the broad impact of glycans on the immune system and discuss the changes and clinical opportunities associated with the onset of immunologic disease. Expected final online publication date for the Annual Review of Immunology, Volume 39 is April 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

The Biophysical Modeling of the Hemodynamic in the Human Organism

2020 ◽  
Vol 7 (11) ◽  
pp. 494-502
Author(s):  
Janos Vincze ◽  
Gabriella Vincze-Tiszay ◽  
Julianna Szakacs
Keyword(s):  
Blood Flow ◽  
Vascular System ◽  
Experimental Testing ◽  
Real Life ◽  
Pathological Process ◽  
Human Organism ◽  
Main Function ◽  
Biophysical Modeling ◽  
Circulatory Apparatus ◽  
Cardio Vascular

The circulatory apparatus has as a main function the constant maintaining of the internal environment in all the regions of the organism. The blood is a liquid tissue, being formed of a fundamental substance – plasma and blood cells. Heart is the central organ of the cardiovascular apparatus. The heart muscles have numerous biophysical properties. The cardiac muscle is never tired unless it suffered a pathological process. During the diastole, blood is aspired in the heart and during the systole it is pushed in the big and small circulation. The blood amount pushed from the heart in the vascular system in a certain time represents the blood flow. The biophysical methods are next: we administer a certain substance amount, then its passing speed will depend on its concentration; to apply the calorimetric principles for the measurement of the gastric blood flow; the diagnostic of a chronic peripheral arteriopathy we use the calorimetric method is based on measuring the heat being introduced in a certain amount of water which has known temperature; one of the most often used methods for the evaluation of the use of radioisotopes in the cardio-vascular system is the compartment method. Any attempt to apply biophysics to the life systems involves three stages. First we observe the phenomena and formulate a biophysical description in the form of equations; after to solve the equations. Finally we return to the real life system and interpret this solution in terms of reality, this interpretation may requiew experimental testing.

scholarly journals Effect of exercise and humid heat upon pulse rate, blood pressure, body temperature, and blood concentration

1920 ◽  
Vol 91 (636) ◽  
pp. 111-126 ◽  
Keyword(s):  
Blood Pressure ◽  
High Temperature ◽  
Body Temperature ◽  
Human Body ◽  
Temperate Climate ◽  
Human Organism ◽  
Atmospheric Conditions ◽  
Hot Climate ◽  
The Tropics ◽  
Short Time

The effect of exercise on the human body has been made the subject of much study at different times. Researches have been carried out under atmospheric conditions such as prevail in different parts of Northern Europe, and they have been extended in a few instances to the effects of high temperature and humidity upon the human body. In the latter observations the conditions such as high temperature and varying humidity were produced by artificial means only, and general deductions as to the influence of an actual tropical climate upon the human organism cannot be safely drawn from them. In these experiments the subjects were living in a temperate climate, were exposed to heat and humidity for a short time only, and left the hot chamber at the end of the experiment for an atmosphere of coolness and comfort; in the tropics, on the other hand, the inhabitants are continuously exposed to heat and humidity without respite. Conclusions of real value can thus be drawn only from observations actually carried out in a hot climate, and systematic work in this direction is still lacking. Although observations have been made in the tropics on body temperature, blood pressure, pulse and respiration rate, and metabolism, yet their object has only been to obtain normal standards for the tropics for comparison with those of Europe.

scholarly journals The Biophysical Modeling of the Rhythmical Periods in the Human Organism

2020 ◽  
Vol 5 (4) ◽  
Keyword(s):  
Periodic Function ◽  
Menstrual Period ◽  
Human Organism ◽  
Human Adaptation ◽  
Deep Breathing ◽  
Biophysical Modeling ◽  
Material Models ◽  
Functional Systems ◽  
Contraction And Relaxation ◽  
Respiratory Movements

Biophysics uses certain devices to help it study the processes analogue to the ones that happen in the biological systems, hence material models. The importance on biophysics consists of the fact that a model for a simpler system gives the possibility to a certain extent to apply the same model to more complex functional systems as well (for example the organism). The respiratory movements are rhythmical and automatic: in an adult at rest is between 16 and 18 per minute. We write a periodic function for the deep breathing. So, the contraction and relaxation of the atrium and ventricle, are characterized by a periodic function. The menstrual period is a rhythmical pheno¬menon. The optimal systems ensure the coincidence between the regulated size and the reference one through negative retroaction, compensating the perturbation. The rhythmical phenomena are a very import role in human adaptation to the environment.

scholarly journals The Consequences Of Environmental Pollution Can Be Fatal

2021 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Water Pollution ◽  
Environmental Pollution ◽  
Human Health ◽  
Chemical Substance ◽  
Stable Form ◽  
Chronic Patients ◽  
Direct Damage ◽  
Living Organisms ◽  
Short Time ◽  
Source Of Pollution

Environmental pollution is the import of a foreign chemical substance or energy in a stable form into the environment in a concentration or quantity, which at a given moment causes direct damage to the environment, parts of nature, living beings or human health. Pollution or contamination means the presence of a foreign chemical substance in the environment, in a concentration or volatile form that does not cause direct harm to human health or other living organisms in a short time. Pollution is sought to be prevented by controlling the source of pollution. Man’s actions endanger and pollute the soil, air and water. Pollution can cause illness and even death in chronic patients.

scholarly journals Biomass Based Materials in Electrochemical Supercapacitor Applications

2021 ◽  
Author(s):  
Sema Aslan ◽  
Derya Bal Altuntaş
Keyword(s):  
Low Cost ◽  
Storage System ◽  
Energy Storage System ◽  
High Energy ◽  
General Term ◽  
Electrode Structure ◽  
Micro Particles ◽  
Living Organisms ◽  
Short Time ◽  
Supercapacitor Applications

Biomass is the general term for organic substances derived from living organisms (plants and animals). Since, biomass is a renewable, sustainable, innovative, low cost and carbon-neutral energy source, the applications of nano-micro particles produced from biomass in electrochemical applications have emerged. A large number of carbon-based materials, such as featured activated carbon, carbon nanotube, C-dots, biochar, hybrid carbon-metal/metal oxide … etc. can be produced from divergent types of biomass. With the growing energy need in the world, supercapacitors have also developed considerably besides the energy generation and storage methods. The supercapacitor is an energy storage system that can work reversibly to provide high energy in a short time. In these systems, electrode structure and surface properties are crucial for energy capacity enhancement. In this sense, electrode modifications with the above-mentioned biomass-based nano-micro structures are widely used in supercapacitor applications.

scholarly journals A spiking neural program for sensorimotor control during foraging in flying insects

2020 ◽  
Vol 117 (45) ◽  
pp. 28412-28421 ◽  
Author(s):  
Hannes Rapp ◽  
Martin Paul Nawrot
Keyword(s):  
Machine Learning ◽  
Neural Circuit ◽  
Systems Approach ◽  
Behavioral Control ◽  
Behavioral Strategies ◽  
Dynamic Memory ◽  
Flying Insects ◽  
Odor Plumes ◽  
Living Organisms ◽  
Short Time

Foraging is a vital behavioral task for living organisms. Behavioral strategies and abstract mathematical models thereof have been described in detail for various species. To explore the link between underlying neural circuits and computational principles, we present how a biologically detailed neural circuit model of the insect mushroom body implements sensory processing, learning, and motor control. We focus on cast and surge strategies employed by flying insects when foraging within turbulent odor plumes. Using a spike-based plasticity rule, the model rapidly learns to associate individual olfactory sensory cues paired with food in a classical conditioning paradigm. We show that, without retraining, the system dynamically recalls memories to detect relevant cues in complex sensory scenes. Accumulation of this sensory evidence on short time scales generates cast-and-surge motor commands. Our generic systems approach predicts that population sparseness facilitates learning, while temporal sparseness is required for dynamic memory recall and precise behavioral control. Our work successfully combines biological computational principles with spike-based machine learning. It shows how knowledge transfer from static to arbitrary complex dynamic conditions can be achieved by foraging insects and may serve as inspiration for agent-based machine learning.

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