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Abstract: In electromyography studies, it is generally accepted to normalize the signals so that they can be compared and interpreted. But due to the lack of a standard method for normalization, there are many differences in the normalization method. These differences are related to the reference signal measurement method. The purpose of this study is to compare the reliability ...

. Introduction In all recorded historical texts, the ability to generate power has fascinated man. Although modern technology has reduced the need for maximal strength levels for normal daily activities, from a scientific and clinical point of view muscle strength is of particular importance for health [1], optimal sports performance [2] and increased quality of life [3]. The ...

An academic thesis for receiving a master's degree in the field of physical education in the field of motor behavior, strengthening the factors of muscle function in the developed training stages and maintaining these abilities is considered one of the most important tasks of coaches and athletes when they are not training or are injured. With this aim, the present research ...

Thesis presented as part of the academic activities required to obtain a Ph.D degree in physical education and sports science, sports biomechanics. Abstract: The purpose of this study is to investigate and compare the electromyographic activity of selected shoulder girdle muscles and scapulohumeral rhythm of handball players, tennis players, swimmers and non-athletes during arm ...

Master's Thesis in the field of Physical Education and Sports Sciences - Physiology. Abstract: Investigating the effect of four weeks of isometric handgrip exercise on changes in blood flow-related vascular dilation and blood pressure in women with hypertension. It seems that hypertension has a complex relationship with endothelial dysfunction. Increased blood pressure ...

Thesis of Master's Degree in Economics, Economic Sciences, November 2019 Abstract: In countries that experience high inflation rates for a long time and the general level of prices increases dramatically.

(Strength – Orientation) Economics-Economics, January 2013 Abstract The revenues from the sale of oil have a significant share in the government's income and the government's gross domestic product in Iran. On the one hand, due to the importance of the industrial sector

Thesis for obtaining a master's degree in the field of physical education, orientation: sports science. Abstract: The purpose of this research is to investigate the effects of plyometric training on agility, explosive power, and speed of 21-17-year-old male badminton players. The research subjects were 40 elite male badminton players aged 17-21, who were randomly divided into ...

Abstract Adopting a suitable currency regime and equilibrium exchange rate is one of the important and sometimes controversial issues. Some economists believe that the low nominal (or real) exchange rate causes export stagnation and reduced incentives for domestic production to replace imports. Others believe that the policy of devaluation of the national currency or high ...

Dissertation for obtaining a master's degree in electrical engineering, electronics, abstract, accurate measurement and control of temperature in industrial and research systems is of particular importance, and the correct operation of some industrial and laboratory tools is possible only in a certain location with a small number of channels (maximum 8 channels). Therefore, the ...

Dissertation for Master's Degree in Physical Education, Sports Physiology, Introduction Today, there is fierce competition between athletes in different countries to win championship titles in the Olympic, World and Continental Games, and the effort to improve the performance of athletes has made sports scientists to work more in this field and has increased research in sports ...

Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...

Thesis for obtaining a master's degree in the field of physical education and sports science, majoring in sports physiology. Objective abstract: The purpose of this study was to investigate the effect of post-activity strengthening exercise program (PAP) on physical indicators and the 100-meter freestyle record of 10- to 14-year-old female swimmers. Method: For this purpose, 24 ...

(Master's degree in physical education (pathology and corrective movements) The effect of yoga exercises and central stability on balance and posture abnormalities of women with multiple sclerosis Abstract Introduction: Multiple sclerosis is the most common progressive neurological disease in young adults. This disease causes the destruction of myelin in the nerved axons and ...

Educational Department of Physical Education and Sports Sciences, Academic Thesis for Master's Degree Abstract The purpose of this study was to investigate the effect of ten days of ginger consumption on delayed muscle contusion in Langrod high school girls. For this purpose, 30 female high school students (average age 15-18 years, height 1.55±0.05 m, weight 53.9±5.83 kg, and ...

Master's thesis in the field of physical education and sports science, sports pathology, abstract background: in plyometric exercises, movements simulated with the main skills of the desired sport are used with the aim of increasing the player's power. The aim of this study was to evaluate the effect of 8 weeks of plyometric training with and without short hurdles on jump height ...

Dissertation for Master's Degree in Physical Education, Physiology, Abstract Central stability is the ability to control the position and movement of the trunk on the pelvis, which allows the control and transfer of force and movement to the extremities during sports activities, which muscle contraction can increase this stability. Improving central stability can be effective in ...

Dissertation for Master's Degree in Civil Engineering - Earthquake Engineering Abstract The city of Birjand, as the capital of South Khorasan province, is located in the structural zone of Sistan, which is particularly sensitive due to its proximity to seismic and fundamental faults (Neh Khawri and Westi faults in the south, Ardkol fault in the northeast, Nawaz fault in the ...

Dissertation for master's degree in the field of civil engineering, road and transportation, the abstract of asphalt failures is one of the problems that are the concern of road and transportation engineers today, and every year huge costs are spent on the maintenance and repair of asphalt roads. Many efforts have been made to increase the strength and life of asphalt, among ...

Master's Thesis in Civil-Soil Field Abstract Dense clay layers are used as one of the most common impermeable layers in most geotechnical structures such as earthen dams and municipal and radioactive waste disposal centers. Due to special geotechnical characteristics, these layers are damaged by cracking during their lifetime, these cracks increase the permeability of the layer ...

Dissertation for Master's degree (M.Sc) Major: Painting Chapter 1: Overview of the design Introduction The exact speed of light is 299792458 meters per second. He directs the matter from the heavens to the earth, and then ascends to Him on a day that is as much as a thousand years from what you do (Surah Sajdah, verse 5) ""God governs the affairs of the earth from space and ...

Dissertation for Master's Degree in Physical Education Abstract: Introduction: Exercise has positive effects on the cardiovascular system and increases the ability of the body's muscles, in the meantime, the respiratory system also becomes more capable. Compared to other sports activities, swimming puts all the body parts in a state of exercise and has a greater effect on the ...

Dissertation for Master's degree (M.A) Major: Exercise Physiology Abstract Considering the lack of research on the effect of various types of resistance training on urinary protein excretion, the purpose of this study was to compare the acute and chronic effects of two types of continuous and intermittent resistance training on resting proteinuria and in response to exercise in ...

Tendency of soil mechanics and foundations. Abstract: Investigating the behavior of soils due to different loadings is one of the most important issues in geotechnical engineering. The behavior of soils depends on several parameters such as grain size, grain type, loading method, stress history, etc. Non-alignment of main stress and main strain directions is a phenomenon that ...

Dissertation for Master's Degree (M.A) Major: Sports Biomechanics Abstract Objective: In recent years, the use of permitted sports supplements has become one of the most important parts of an athlete's preparation to participate in the field of competition. Despite the many researches that have been conducted in the field of supplements, there is no general consensus on ...

Dissertation for Master's Degree in Physical Education and Sports Science Abstract The purpose of this research was the effect of a plyometric circuit training course on the physical fitness factors of wrestling students in district 11 of Tehran. For this purpose, 30 wrestling students of district 11 of Tehran city in the academic year of 1992-1993 were purposefully selected and ...

Academic Thesis for Master's Degree in Physical Education and Sports Sciences Abstract The purpose of this study was to investigate the effect of ten days of ginger consumption on delayed muscle contusion in Langrod high school girls. For this purpose, 30 female high school students (average age 15-18 years, height 1.55±0.05 m, weight 53.9±5.83 kg, and body mass index 22.2±1.2 ...

Master's Thesis of Physical Education and Sports Sciences, Sports Management, Abstract One of the factors on which a lot of research is done today is the physiological factors that govern behavior and the behavioral factors that affect physiological factors. The purpose of the present semi-experimental research was to investigate the changes in blood oxytocin level in response ...

Thesis for obtaining a master's degree in the field of physical education and sports science, majoring in sports physiology. Objective abstract: The purpose of this study was to investigate the effect of post-activity strengthening training program (PAP) on physical indicators and the 100-meter freestyle record of 10- to 14-year-old female swimmers. Method: For this purpose, 24 ...

Dissertation for M.A. Master's Degree in Physical Education Major: Sports Physiology Abstract: The purpose of this research was to investigate the effects of a central body stability training program on posture control, dynamic and static balance of volleyball players. The statistical population of this research was volunteer male volleyball players aged 18 to 24 from Zanjan ...

Dissertation for receiving a master's degree in the field of physical education in the field of sports physiology. Abstract: Athletes have been continuously searching for solutions to improve their sports performance. One of the methods that can develop sports performance and prepare athletes physically and mentally for sports activities is the use of herbal supplements. The aim ...

Dissertation for Master's Degree in Physical Education, Physiology, Abstract Central stability is the ability to control the position and movement of the trunk on the pelvis, which allows the control and transfer of force and movement to the extremities during sports activities, which muscle contraction can increase this stability. Improving central stability can be effective in ...

Dissertation for MD degree Abstract Introduction: Asthma is one of the chronic respiratory diseases characterized by reversible constriction of the airways. This relatively common disease affects about 10-12% of adults and 15% of children. Many asthma patients say that their symptoms worsen with stress. (1) From the point of view of psychology, coping style is the process of ...

A master's thesis in the field of physical education and sports science, sports pathology, abstract background: in plyometric exercises, simulated movements with the main skills of the desired sport are used with the aim of increasing the player's power. The aim of this study was to evaluate the effect of 8 weeks of plyometric training with and without short hurdles on jump ...

1-1- Introduction Cardiovascular disease (CHD) [1] and above all coronary artery problems are one of the main causes of death in the new century and the first causes of death in Iran. High blood pressure, high blood fats and lipoproteins, age, sex, lifestyle, nutrition, smoking, inactivity, diabetes and obesity are among the traditional risk factors of cardiovascular diseases ...

Master's thesis in the field of physical education and sports sciences, sports biomechanics, abstract: flat feet are among the most common abnormalities. Anatomical abnormalities can change the kinematic variables of the foot joints, which results in a different walking pattern. Identifying the quality and quantity of the variables affected by these anomalies is effective in the ...

Dissertation for M.A. degree (Abstract: The Shahnameh has a great place among cultural Iran. Since the Shahnameh is rooted in the culture of ancient Iran. Culture is the motivation that drives people. In this research, an attempt will be made to examine the view of the Shahnameh about the world after death and the influence of the Zoroastrian religion on this view and show that ...

Dissertation for receiving a master's degree, specialization: microbiology. Abstract Staphylococcus aureus is considered as the third most important cause of food-borne diseases. Milk is the primary source of Staphylococcus aureus and milk products are a known source of staphylococcal poisoning. This study was conducted to determine the prevalence of Staphylococcus aureus in ...

Dissertation for Master's Degree (M.A.) Orientation: ""Strategic"" Abstract: Competitive advantage is a set of unique abilities of an economic unit that allows it to penetrate the desired markets and provide superiority over competitors. To define the competitive advantage of an economic unit, the management must make a complete assessment of the internal and external ...

Master of Physical Education (Pathology and Corrective Movements) Abstract Introduction: Multiple sclerosis is the most common progressive neurological disease in young adults. This disease destroys myelin in nerve axons and causes functional damage. One of the important areas involved in MS is the cerebellum. A problem in this structure causes a disturbance in balance, etc., ...

Dissertation for obtaining a doctorate degree in dentistry. Introduction Removing large amounts of dental tissue weakens the restored tooth. The type of restoration and composite method can be one of the influencing factors on tooth fracture resistance under occlusal forces. The purpose of this study was to investigate the effect of using new low-shrinkage composites on the ...

Master's thesis in the field of physical education and sports sciences, majoring in sports physiology. Abstract The purpose of this research was to compare the effect of yoga and aerobic exercises on some physiological factors and physical fitness of non-athletes. 30 non-athletic women of Meibod city (age: 26.53 ± 4.98 years, height: 159.67 ± 5.35 cm, weight: 72.66 ± 14.94 kg, ...

Academic Thesis for Master's Degree Field: Physical Education Major: Sports Science Abstract: The purpose of this research is to investigate the effects of selected plyometric exercises on agility, explosive power and speed of 17-21-year-old male badminton players. The research subjects were 40 elite male badminton players aged 17-21, who were randomly divided into two equal ...

Dissertation: To get a Ph.D. Abstract Introduction: One of the rare complications of myocardial infarction that occurs in the weeks and months after it is the left ventricular aneurysm, which is defined as a thin and discrete piece of the left ventricular wall that bulges both during systole and diastole and has a wide base. Most of the left ventricular aneurysms occur in the ...

Dissertation to receive the Ph.D. degree in Pharmacy Persian Summary A group of N-aryl phthalimide derivatives were evaluated for anti-inflammatory activity. Non-steroidal anti-inflammatory drugs are considered as analgesic and anti-inflammatory and their primary mechanism is cyclooxygenase enzyme inhibition. Cyclooxygenase is a key enzyme in the production of prostaglandin and ...

Dissertation for receiving a professional doctorate degree in the field of medicine Persian abstract Title: Comparison of the prevalence of obsessive-compulsive disorder in children with and without functional constipation referred to the pediatric clinic of Amirkabir Hospital in 2013 Introduction: Constipation in childhood is a common problem that causes discomfort to the child ...

Master of Chemistry (Chemistry-Physics) Abstract In the present work, the theory of stable structures, bond energies and interactions in H2SO4...HNO...(H2O)n clusters (n = 0-2) were studied at the MP2/aug-cc-pVDZ computational level. The presence of one and two H2O molecules strengthens the interaction between HNO and H2SO4 molecules, and this indicates the positive role of H2O ...

Dissertation for receiving a master's degree in the field of physical education and sports science. Abstract The purpose of this research was to investigate the effects of movement order in resistance training on testosterone hormone response. 15 active young men with an average age of 18.02±0.41 years; height 173±0.496 cm; Weight 63.08 ± 9.57 kg were voluntarily selected as ...

Dissertation for Master's Degree in Medical Engineering Abstract Cardiac arrhythmias are one of the heart diseases that should be taken care of in patients admitted to the intensive care unit. Smartening the process of accurate diagnosis of heart diseases is a problem that has attracted the attention of researchers for years. In this research, an efficient method for selecting ...

Abstract The main task of the synchronous generator excitation system is to provide the necessary voltage for the generator excitation winding. The excitation voltage is a dc voltage and it is used to create a flux in the excitation winding of the generator and consequently to produce a magnetic field to produce electrical energy by a synchronous generator. In the provided ...

Master's degree in electrical engineering, electronics, abstract, accurate measurement and control of temperature in industrial and research systems is of particular importance, and the correct operation of some industrial and laboratory tools is possible only in a specific location with a small number of channels (maximum 8 channels). Therefore, the decision was made to build a ...

Dissertation for obtaining a doctorate degree in the field of mechanical engineering - manufacturing and production: the advantages of using semi-solid processes are reducing the amount of gas porosity and shrinkage and modifying the microstructure, which aims to improve the mechanical properties of the part. In this research, the cooling ramp method has been used to produce the ...

Dissertation for receiving a Master's degree (M.Sc) major: food chemistry Summary Persian Iran is the main habitat of walnuts. Iranian walnut is an economically important species and has a lot of nutritional value. In this research, random walnut samples were collected from 100 walnut trees in two areas of Baghstan located in Tehran province and Erengeh located in Alborz ...

Dissertation for receiving a master's degree in the field of food science and industry, food microbiology, abstract, due to the vast amount of desert resources in the country, as well as the problems of lack of water, camel breeding and attention to its meat have gained considerable importance. Rosemary is one of the medicinal plants with proven antimicrobial properties. In the ...

Dissertation for master's degree in mechanical engineering, construction and production trend. Abstract One of the important topics in the field of welding in engineering structures is the discussion of reducing residual stresses in welding lines and improving the quality of welding. Residual stresses reduce the load bearing limit, the life of welded joints and change the forms ...

Dissertation for Master's Degree in Mechanical Engineering, Manufacturing and Production, Abstract: The process of laser forming, especially in recent years, has been widely noticed. In this process, shaping is done by irradiating the laser beam on the surface of the sheet, which is accompanied by a rapid local heating and subsequent cooling of the heated area. However, the way ...