In this disquisition، has been paid to comparing the performance of static and dynamics neural network by purpose choosing appropriate model in predicting of Tehran Stock Exchange. The data used in this study consists of daily and interval of time 1388/1/5 to 1390/8/30، that Including 616 observation for in sample and out of sample forecasting. Approximately 90% of these observations (556 data) use to estimate coefficients of the model and the rest of them (60 data) use to forecast out of sample. Models are also employed in this research; two stationary neural network models such as fuzzy neural network (ANFIS) and artificial neural network (ANN) and a dynamic regression neural network model (NNARX). The results of this survey indicate that According to Criteria to calculate the forecast error، among Mean squared error (MSE) and root mean square error (RMSE)، Fuzzy neural network model of static، dynamic regression models، neural networks، and finally static artificial neural network models have lowest prediction error، Respectively.

The aim of this study was to investigate the acute effects of different warm-up protocols on static and dynamic balance indices and balance the vault in skilled female gymnast. Twenty four skilled female gymnasts (mean age 9.66­±­1.43 years(were selected. Subjects have been randomly divided into three groups: general warm-up (control), general warm-up and static stretching and general warm-up and dynamic stretching. The first protocol included a 10 minute general warming up, the second protocol involved general warm-up followed by the use of static stretching and the third protocol included general warm-up followed by dynamic stretching the muscles involved in performing the balance whip. Before and after the activity, the indicators of the equilibrium of anterior-posterior and internal-external pressure fluctuations range, and track length of the anterior-posterior and internal-external pressure center in four static and dynamic situations (both with one leg, and with two legs) were investigated using a dynamometer system equipped with 7 cameras and Kistler force plate. The whip balance performance with dynamic warm-up protocol was significantly higher than general warm-up protocol (P=0.001) and static warm-up protocol (P=0.01). Also the whip balance performance significantly decreased after the static warm-up protocol (P=0.005), but no significant differences were observed in the control group (P ≥0.05). Static balance with both feet in the dynamic warm-up protocol showed no significant difference in compare to general warm-up (P=0.07) and static warm-up protocols (P=0.06) (P ≥0.05). Also between the static warm-up protocol and the control group no significant difference was observed (P ≥0.05). On the other hand, no significant difference was observed between the static balance with one foot, dynamic balance with two feet and dynamic balance with one foot (P ≥0.05). Our study showed that dynamic warm-up resulted in further improvement in whip balance in compare to static and general warm-ups. Also, in clinical point of view, dynamic warm-up, in comparison with static and general warm-ups, leaded to further improvement in dynamic and static balance indices; although, these findings were not statically significant.

One of the main sections of warm up is stretching which the importance of them is static and dynamic stretching. The purpose of this study was to examine the effects of static and dynamic stretching within a pre-exercise warm-up on the static and dynamic in soccer players. Eighteen physical education female students (height: 159.68 ± 5.94 cm; mass: 60.21 ± 5.93 kg; age: 22.00 ± 0.63 years (Mean ± SD)) were participated voluntarily. Before and after different warm-up protocols consisting of static stretching (SS), dynamic stretching (DS), and no stretching (NS), to measure static and dynamic balance were used the stork test and the star excursion balance test, respectively. Statistical analysis was conducted ANOVA Repeat Measure and Tukey’s testes. There was a significant increase in static balance after DS (6.34 ± 3.14 s) vs. SS (4.40 ± 2.47 s) (p = 0.03). In addition, there was a significant increase in dynamic balance after DS (72.03 ± 3.76) vs. SS (69.58 ± 5.35) (p = 0.01). One the other hand, there are no significant differences in static and dynamic balance after NS vs. DS and SS. Researchers concluded that dynamic stretching cause to increase the static and dynamic balance performance. Therefore, they should update their body with this type of stretching.

Optimum assignment of deposits and facilities is as one of the most strategies of banks. The optimum assignment of deposits is led to target of deposits of banks and the optimum assignment of facilities will be led to more return than deposits gather cost and fast responding to bank customers. Target of this research is presentation of linear programming models for determining the optimum portfolio of banks deposits and facilities with approach of decreasing monetary actual cost. The applied tool in this research is linear programming models and data used are quantitative. Three scenarios have been considered in this research. In one scenario, is proposed a linear programming model in order to optimize deposits portfolio of bank. In second and third scenarios, is proposed two linear programming models respectively, for optimizing the deposits portfolio and the deposits and facilities portfolio of bank with approach of decreasing monetary actual cost. The one scenario and the second and third scenarios respectively, are surveyed under static and dynamic situation.

The aim of this study was to investigate the relationship between lower extremity strength and active range of motion of the ankle with static and dynamic balance in deaf athletes and non-athletes and compare them. 30 adolescent boys with congenital sever deafness were recruited according to the study inclusion and exclusion criteria and allocated into athlete and non-athlete groups. A Biodex Stability System, dynamometer and goniameter used. The results revealed that the athlete deaf subjects showed significantly better static and dynamic balance when compared to non-athletes deaf and significant difference between lower extremity strength (ankle plantar flexor and hip extensor muscles strength) of athlete and non-athlete deaf. There was a significant relationship between lower extremity strength and ankle active ROM with static and dynamic balance. It seems that higher strength of hip extensor and plantar flexor muscles in deaf athletes resulted in better static and dynamic balance.

The aim of this study was to investigate between sway parameters of center of pressure in static and dynamic balance indices with eyes closed after four weeks static warm up in skilled gymnast athletes.
Material and In this study, 16 skilled female gymnasts (with mean age 9.62±1.45 years) were randomly categorized into two groups: general warm-up (control), general warm-up and static stretching. The first protocol included a 10 minute jogging, and the other group was tested for static stretch (SS) during 4 weeks and three times a week. Before and after four weeks the activity, the indicators of the equilibrium of anterior-posterior and internal-external pressure fluctuations range, and track length of the anterior-posterior and internal-external pressure center in four static and dynamic situations (both with one leg, and with two legs) were investigated using a dynamometer system equipped with 7 cameras and Kistler force plate.
The results showed a significant increase in static balance with both feet and a feet by removing visual input in a state of equilibrium with static warm-up protocol after four weeks (P=0.001), But dynamic balance on two legs and one foot with static warm-up protocol was significantly decreased after four weeks (P=0.001, P=0.005, respectively).
The results may indicate that long duration static stretch exercises can improve static balance with both feet and a foot in gymnast athletes, but long duration static stretch exercises may disturb the function of the dynamic balance and so may cause sport injuries in athletics

Autism children are susceptible to movement disorders, weakness of physical fitness, decrease of balance, and stability beause of inactive life style and weakness. Recently, the role of the muscles of the back and pelvis, as part of the core stability, is being considered, because these muscles control motion of the lower limbs based on closed kinematic chain. The purpose of the present study was to investigate the relationship between lumbar-pelvic function and static and dynamic balance in children with autism spectrum disorders.
Participants included 32 boys aged 6-10 years selected according to available sampling and normalized based on Gylyam Garz Diagnostic criteria. For evaluating static and dynamic balance and lumbar-pelvic function, modified stork, walking heel to toe, and step down tests were used, respectively.
The Pearson correlation revealed a significant correlation between the lumbar-pelvic function and static and dynamic balance.
According to the results, it can be suggested that lumbar pelvic function be improved as an important part of core stability, and static and dynamic balance and rehabilitation programs be developed to better help children with autism spectrum disorder.

The purpose of this study is to investigate the relationship between positive and negative free flow of cash flows and financial constraints on over-investment and underinvestment in corporate assets. This study is a descriptive-correlational study. The statistical population of the study includes 122 companies listed in Tehran Stock Exchange between 2006 and 2015. In the present study, four hypotheses were developed and each one was tested using a static and dynamic approach. For a static approach, constant regression was used and for a dynamic approach was used generalized momentum regression. The results showed that in the stationary state financial constraints exacerbated by the impact of significant free cash flow of investment is too. The impact for positive free cash flow and negative free cash flow were directly and reverse. In dynamic mode resonator impact of financial constraints on the relationship between free cash flow and investment, too, is negative. Financial constraints moderating role on the relationship between free cash flow positive and negative values in both static and dynamic approach to investment is not enough. On the other hand the dynamic approach to financial constraints moderating role on the relation between a positive free cash flow and investment has not been excessive.

Today, improving the information environment can lead to firm risk reduction by increasing market's transparency. Present study investigates the effect of information environment on the relationship between Management Earnings Forecast and firm risk based on static and dynamic approaches. To test in static approach, Multivariate regression with fixed effects, and in dynamic approach, Generalized Moment of Method (GMM) has been used. Using a systematic elimination method, 65 companies were selected among listed companies in Tehran Stock Exchange. Time domain research for data extraction, is years 2010 to 2019, and for data testing is 2012 to 2019. Results in both static and dynamic state indicate a reverse and significant relationship between firm risk and management earnings forecast, and in companies with stronger information environments, this relationship is lower. Also, the effect of independent variables on non-systematic risk in the dynamic approach is greater than the static approach.

Objectives Postural control is the act of maintaining and restoring a better state of balance and proper biomechanics structure in limbs and different parts of the body. Such proper structure exists in two forms namely static and dynamic. Fatigue is one of the factors that affect the postural control and body stability. The purpose of this study was to examine the effect of hip abductor muscle fatigue on the static and dynamic balance in elderly women.
Methods & Materials The participants of this study included 25 elderly and healthy women without any disability (60.24±8.5 years old, weight: 60.58±9.54 kg, height: 153.42±7.65cm). In the first session, the participants underwent static and dynamic balance tests in the normal condition (without fatigue). In the second session, at first, they participated in the hip abductor muscle fatigue protocol followed by static and dynamic balance tests. In addition, t-test was used to compare the results before and after the fatigue.
Results The results indicated that the hip abductor muscle fatigue protocol led to a significant reduction in test scores of balance tests, which included static and dynamic balance. Also, a significant difference was observed between static and dynamic balance before and after fatigue. Overall, the measure of the effect of fatigue protocol was notable in both the tests (PConclusion Reduction in the scores of static and dynamic balance tests showed that the hip abductor muscle fatigue caused an increase in the amount of damage and length of disability in elderly women.