فهرست مطالب ahmad ahmadi

Recently, the increasing development of money and financial markets has attracted a lot of attention. Due to the importance of financial markets, until today, various stock forecasting strategies have been provided, most of which are able to make predictions for only one specific stock. In this research, the goal is to provide a solution that can provide high accuracy for stock market forecasting at the same time with low processing overhead. In this solution, an optimal portfolio of stocks is offered to the user, which stocks are ready for sale and which stocks will be suitable for the future, so that the user can reach the maximum possible profit. In order to achieve higher accuracy in the proposed method, first, the system wastrained using data mining, and in this proposed method, improved genetic algorithm and multilayer neural networks were used. According to the findings of the research, in the proposed model, only stocks are selected whose average price changes are higher than the threshold specified by the user, and in this case, the stock portfolio is formed, and it is even possible to determine the number of selected stocks, which is the best stock portfolio. Selection and as a result reached the best profit. Also, in this research, several studies were used for comparison, and, as a result of the review, it was found that the proposed solution is able to perform better than its competitor's methods and has higher accuracy.

The purpose of this research is to provide a model of the impact of open innovation on the competitive advantage of electronic services in the banking system (case study: Bank of Agriculture branches in Shiraz city). The statistical population included specialists and experts in the field of electronic services in the banking system of Shiraz Bank of Agriculture branches, who were selected as participants in the research using a targeted sampling approach. The data was collected by semi-structured interview method. In order to obtain the reliability and validity of the data, two methods of reviewing the participants and also reviewing the experts who were not participating in the research were used. The reliability of the model was evaluated using the Kappa index. The value of the Kappa index equal to 0.662 was calculated and it was placed at the level of valid agreement. Interviews and coding were analyzed using Maxqda software. Finally, based on the identified final criteria, the model derived from the foundation's data analysis method is presented. In the results of axial coding, 76 primary codes are grouped into 11 categories. The categories include banking marketing, electronic banking, market research, and human aspects of innovation, banking performance, organizational factors, banking technology, banking users and customers, external environment. The bank has been a competitive advantage of the bank and service innovation.

This study aims to analyze the impact of the implementation of the anti-money laundering law on the detection of the origin crime and the prevention of economic crimes. The statistical population was determined by tax, banking, and justice experts, among whom 54 people were selected in a targeted way. Data was collected using a researcher-made questionnaire and its reliability and validity were confirmed. The research hypotheses were tested using the structural equation modeling approach. The results show that the implementation of the anti-money laundering law by the banking and tax systems did not have a significant effect on the detection of the origin crime and the prevention of economic crimes. Also, the impact of the independent variable directly and through the mediator variable is not significant, and the model lacks predictive power. It seems that the reasons for the failure of the implementation of the anti-money laundering law are the existence of jurisprudential and legal contradictions in the existing law, precedence of proving the origin of crime before proving the crime of money laundering, the lack of coordination of institutions, technical problems in the tax and banking system, and the lack of cooperation with the judicial system.

This study was conducted to evaluate the effects of dietary supplementation of different sources of zinc on the quantitative and qualitative characteristics of semen and blood testosterone in Mahabadi mature bucks. Twenty-four mature male goats (40 ± 0.86 kg), approximately 1-1.5 years old, were divided into three groups (n = 8) and assigned to experimental treatments for 56 days in a completely randomized design. The treatments included: 1) control (a basal diet containing 22.14 mg/kg zinc without zinc supplement), 2) basal diet + 35 mg/kg Zn4 as ZnSO4 (an inorganic source of Zn), and 3) basal diet + 35 mg/kg Zn as ZnMet (an organic source of Zn). Qualitative (ejaculate volume, sperm concentration) and quantitative (viability, membrane integrity, morphology, and CASA detected parameters) properties of semen and plasma testosterone and Zn, Cu, and Fe concentrations were evaluated. Results showed that ZnMet vs. ZnSO4 increased sperm membrane integrity and plasma Zn concentration and reduced morphologically abnormal spermatozoa (P≤0.05), but there were no significant differences in other parameters. Viability, membrane integrity, morphology, some of the CASA detected parameters (total motility, straight-line velocity, average path velocity, beat cross frequency of sperm), and the plasma concentration of testosterone in zinc-supplemented groups was significantly higher than the control group. In conclusion, the positive effects of an organic source of Zn were seen in reducing abnormal spermatozoa and improving membrane integrity, plasma Zn concentration, and plasma testosterone concentration.

The main goal of this research is to investigate the effects of social crises on the decision-making process of shareholders. The current research has focused on modeling the behavior patterns of investors in choosing a stock portfolio during the outbreak of the Corona virus. The required data was collected through previous studies and interviews with stock market experts. Also, in order to present the model, the foundation data method was used. The results of open coding showed that 45 main concepts in the form of causal conditions, contextual conditions, intervening conditions, central categories and consequences, in order to explain the model of investors' behavioral tendencies in choosing a stock portfolio during the outbreak of the Corona disease in the market. There are Iranian stocks, the most common of which are the behavioral tendencies of following the crowd, under-reacting, paying too much attention to rumors, short-sightedness, tendency effect, innovation and loss aversion. By using selective coding, a paradigmatic pattern of investors' behavioral trends in choosing a stock portfolio during the outbreak of the Corona disease in the Iranian stock market was designed so that 13 concepts are causal conditions, 10 are background conditions, 10 are intervening conditions, 7 are core phenomenon, and 5 are the consequences of investors' behavioral biases in choosing a stock portfolio during the mentioned period in the Iranian stock market.This research has examined the behavioral patterns of investors in a specific period (coronavirus outbreak) and presented a model that can be extended to other social crises.

Saadi Shirazi has used the combination of ghasab ul-Jaib in the beginning of Golestan. There are various opinions about the correct recording and the meaning of the composition of the ghasab ul-jaib. Golestan Saadi commentators and other researchers have discussed this combination and its meaning a lot. This combination has become the most controversial case throughout Saadi Golestan. But in spite of all these arguments, no theory has been put forward that everyone can accept so far. In this article, we have tried to establish the correct recording of this combination using three criteria: 1. Following the maximum recording of Golestan manuscripts, 2. Accuracy in the context of the sentences which this combination is used, and 3. Reference New evidence in other works. In our opinion, the correct form of this combination is the ghasab ul-jaib. Ghasab ul-jaib means a piece of straw in which important paper and letters are placed.

Detailed Abstract
For a long time, regulatory bodies have emphasized the importance of the role of financial managers because they are ultimately responsible for the company's financial strategies. Expert and capable women have been neglected in taking on the role of financial management in organizations. Women play an important role in creating value and increasing the welfare level of the society. Because they are more careful in social relations and pay more attention to the correct performance of assigned duties and following the governing laws; Therefore, their presence at the head of organizations can be useful. Female managers are very useful not only for ethical reasons but also for maintaining good relations with the external environment in order to acquire resources. The presence of female managers is related to the improvement of the company's performance. In addition, the role of women in improving the quality of financial reports, internal controls and audit quality has been proven.
The purpose of this research is to investigate the effect of the gender of financial managers, with an emphasis on female financial managers, on the restatement of financial statements and audit fees in Iranian companies in order to clarify the role of women in assuming managerial responsibilities in organizations. According to the investigations, no research has been done in this regard in the companies accepted in Tehran Stock Exchange. Most of the researches conducted in the field of gender of financial managers have been conducted in developed countries, and their results cannot be generalized to developing countries such as Iran due to differences in cultural characteristics and corporate governance.
Restatement of financial statements can be considered as an important event that shows the low quality of financial statements of the past periods. Considering the negative consequences of restatement, it is necessary to identify the factors that affect the restatement of financial statements. The subject of audit fees and the factors affecting it have been significantly studied by researchers around the world. One of the reasons for investigating this issue is the direct effect of audit fees on audit quality. The demographic profile of senior executive managers has a significant impact on organizational performance and outputs. According to the behavioral characteristics of women and the available empirical evidence, it can be expected that the quality of financial reporting and, as a result, the reduction in mistakes and restatement of financial presentations in companies with female financial managers are more than other companies. Because higher conservatism, better monitoring and effective internal controls created by female managers are related to improved reporting and reduced financial restatements.
The present research is practical and it is classified as descriptive-correlational research. The statistical sample includes 154 firms of Tehran Stock Exchange during the years 2012 to 2019. Since some companies had not formed an audit committee (as a control variable) in some years, the number of observations to test the first hypothesis; reached 1065 firm-year observations. In addition, since the disclosure of audit fee information in companies is voluntary and relatively many companies do not disclose audit fee information, therefore, the number of observations to test the second hypothesis; Reached 734 firm-year observations.
The results of the first hypothesis showed that there is a negative and significant relationship between the gender of financial managers and renewal of financial presentations. Therefore, restatement of financial statements in companies with female financial managers is less than in companies with male financial managers. By examining the results of the second hypothesis test, it was also determined that there is a positive and significant relationship between the gender of financial managers and audit fees. That is, companies with female financial managers pay higher audit fees. In general, the findings indicate that female financial managers, due to their inherent characteristics such as risk aversion and conservatism, increase the quality of financial reporting and want higher quality audits from independent auditors. The findings of this research can help legislators and drafters of regulations to better understand the effects of gender diversity in improving corporate governance and drafting or recommending regulations in this field.

In this paper, the conditions for the superposition operators were provided to map the space $bv_{p}$ into $b v_{q}$, where $1 \leq p$, $q<\infty$. Additionally, we presented the necessary and sufficient conditions under which superposition operators become bounded, continuous and uniformly continuous on the sequence space $b v_{p}$.

The purpose of this research was to compare different statistical methods such as GBLUP, BayesA, BayesB, BayesC, BayesL, Ridge regression, Boosting and SVM for genomic evaluation of traits with additive and dominance genetic architecture. A genome consisting of 5 chromosomes was simulated, with 1000 single nucleotide polymorphism markers (SNP) uniformly distributed on each chromosome. In two different scenarios, 50 and 500 quantitative trait loci (QTL) were considered and in each scenario of QTL number, 0.00, 10, 20, 50 and 100% of QTLs were given dominance genetic effect. The prediction accuracy, bias and reliability of genomic breeding values were used for analyzing the results and comparing the methods. The results showed that not separating the dominance effects from the additive effects lead to a decrease in the accuracy and reliability and an increase in the bias of the predicted genomic breeding values. In all examined scenarios of the QTL number and percentages of QTLs with dominance effect, the Bayesian methods had higher prediction accuracy and reliability and their predictions had the least bias. Boosting predicted the genomic breeding values with the lowest accuracy and reliability and highest bias. The performance of SVM and Ridge regression was better than Boosting, but lower than Bayesian methods and GBLUP. In terms of computing speed, GBLUP and Boosting were, respectively, the fastest and the slowest method. It can be concluded that to increase the efficiency of genomic selection, first, the dominance genetic effects need to be included in the model and, second, methods with the highest predictive performance should be used.

Obviously, the values of the do's and don'ts of the economic system are seriously challenged by crimes against the capital market. By committing such behaviors, trust between capital market actors is seriously damaged. Therefore, in addition to criminalization and punishment, criminal policymakers have a glimpse of capital market crime prevention. The present study seeks to investigate crime and its prevention in the capital market; Strategies to increase investor confidence. This research is descriptive-survey and causal in terms of applied purpose and data collection method. The statistical population of the present study is special investors in the capital market who have been selected by purposive sampling method and 384 people. To collect information, a researcher-made questionnaire with direct questioning mechanism, closed questions and multiple choice spectral type with grading was used and descriptive statistics was used to describe the main variables and inferential statistics was used to analyze the findings. Is. The results of the present study showed that the adoption of important measures such as substantive prevention, individualistic prevention, situational prevention, professional ethics education, public education of citizens, development of relevant regulatory regulations, use of substantive institutions can be effective in crime prevention in the capital market.

The present paper is entitled to identify the effective components of competitive strategies in financial and accounting information in the form of key themes and components using the qualitative technique of content analysis. Qualitative process content analysis was extracted and used to extract useful information from unstructured data (text interviews). The statistical population includes all experts in the field of stock exchange, which includes a sample of 17 experts in this field in the stock market who were interviewed and the text of their interviews was qualitatively analyzed based on Max Kiuda software. The results of coding validity were obtained at 93, which indicates the high reliability of the coding. The findings showed that the experts included four dimensions of after-sales service, market, debts and expenses, each of which includes different ratios, to identify effective components in the field of competitiveness strategies in financial statements and accounting. Therefore, it can be concluded that according to the extracted words, the financial statements of companies are a useful source for identifying the competitive strategies of companies listed on the Tehran Stock Exchange.

Rams usually experience summer heat stress. In addition, rams due to high sexual activity during joining season experience doubled stress. Following the stress, the production of free radicals increases and oxidative stress related damages occur. High levels of free radicals cause sperm viability reduction, infertility and alter post-absorptive carbohydrate metabolism and glucose tolerance. There are various strategies to reduce the harmful effects of oxidative stress. The supplementation of antioxidants and some trace elements are important nutritional strategies have been recommended to combat harmful effects of oxidative stress. Therefore, the aim of this study was to investigate the synergistic effect of organic chromium or selenium on post-absorptive glucose metabolism and blood plasma antioxidant status in Mehraban rams.

Sixteen Mehraban rams (2-4 years old, with a body score of 2.5-3.5 and 70.14 kg in initial body weight) were randomly divided in to four groups (n=4). Treatments included two levels of Se 0 and 0.6 mg/ram/day (in form of yeast selenium) and, two levels of Cr, 0 and 1 mg/ram/day (in form of Cr-Methionine). The experiment lasted for 60 days. The supplements were fed daily and with the morning meal and total antioxidant capacity and malondyaldehyde levels were determined at days 30 and 60 of experiment. At the end of the experiment an intravenous glucose tolerance test was performed. To do this, 0.5 g of glucose/kg BW as sterile 50 % dextrose solution (w/v) was infused by jugular vein and subsequently blood glucose concentrations were determined at 5, 10, 15, 20, 25, 30, 45, 60, 90, 120, 150, and 180 min post-infusion. Then plasma glucose kinetics was calculated.

Time effect and treatment×time interaction did not impact malondialdehyde level and total antioxidant capacity. Interaction of chromium × selenium did impact total antioxidant capacity (P < 0.05) but, did not affect malondialdehyde level. Total antioxidant capacity was higher and malondialdehyde level was lower in chromium and selenium groups compared to control. Glucose basal and peak concentrations and amount of change (peak-basal concentrations) after glucose tolerance test did not differ among groups. Glucose concentrations were lower in chromium and selenium co-supplemented compared to chromium or selenium supplemented group at 15, 150 and 180 min glucose post-infusion and a significant chromium × selenium interaction was found (P < 0.05). Interaction of chromium × selenium did not impact glucose concentration at 20, 25 and 120 min post-infusion but glucose concentration at the mentioned time points in 1 mg level showed tendency to decrease compared to 0 levels. Plasma glucose clearance rate at 5 to 15 min post-infusion was higher and half-life was lower in chromium and selenium co-supplemented compared to selenium-supplemented group (P < 0.05). Main effect of chromium at the mentioned time interval was significant and 1 mg Cr/day had higher glucose clearance rate and lower half life (P < 0.05). Area under the curve at 5 to 15 min post-infusion did not differ between groups. Regardless of whether area under the curve was calculated from 0 to 30 min or 0 to 45 min, area under the curve was lower for chromium co-supplemented group compared to Se-supplemented group (P < 0.05).

Results of this study showed that organic chromium and selenium supplements alone or their combination improve the antioxidant status of rams in summer but, only the use of chromium alone or combined with selenium improves the post-absorption glucose metabolism characteristics. Also, the combined use of those two elements does not have a synergistic effect on post-absorptive glucose metabolism and blood plasma antioxidant status in Mehraban rams.

.Various types of frames have been introduced to solve the problems that arise in the application of frames in different fields of science. Due to problems such as missing or changing frame coefficients that occurred during signal transmission, frames with uniform excess emerged. The tensor product is the basic ingredient in signal processing, to extend one-dimensional methods of filtering and compression of sound to higher dimensions and to use them in image processing. ‎‎In this paper, a method for constructing frames with uniform excess by tensor product of frames will be presented, and with the help of a quantitative criterion of redundancy, this method is compared with other methods of making frames with uniform excess that are expressed on the basis of the union of frames.

In the current era, when renewal cannot be ignored, maybe philosophy can save us from getting lost in the emptiness of ignorance - which is spreading rapidly in the world. Islamic political philosophy refers to a type of political philosophy whose foundations and pillars are based on monotheism and whose presuppositions and goals are compatible with Islamic teachings. Farabi is the first philosopher who tried to connect classical political philosophy with Islamic teachings. By reconstructing the Prophet's government in philosophical language, he presents a plan for a true and utopia government and tries to establish a link between Islamic civilization and rational and philosophical reflections. In different periods of criminal policy in the country, we are faced with different perceptions and interpretations of the concepts of individual and social rights and freedoms, human dignity, justice, meritocracy, public supervision (on the performance of rulers), accountability, transparency, security, innocence and immunity of citizens. We have seen that this issue has been the place of a wide challenge for planners and executives. The place of dispute is where we have made policies to reach a horizon that we don't know where it is? From Farabi's point of view, the philosopher's first duty is to find out the pains and crookedness of the society and provide treatment for it. In this sense, Farabi's intellectual system helps us avoid violence and base it on rationality. Therefore, Islamic philosophy needs to continue socially.

The purpose of this paper is to examine the effect of ethical reasoning, exposure to ethics, and the perceived ethical climate on auditors' ethical judgment. The statistical population of this research includes the partners of audit institutions that are members of the Certified Public Accountants Society (independent auditors working as partners), and to investigate the issue, 88 people were selected as a sample from among the members of the society using Cochran's formula. Structural equation modeling has been used to test the research hypotheses. The results of the hypothesis test showed that ethical reasoning, exposure to ethics, and the perceived ethical climate have a positive and significant effect on auditors' ethical judgment. Among the investigated factors, moral reasoning has the greatest impact, and the perceived moral atmosphere has the least effect on the ethical judgment of auditors. People can provide moral arguments according to their knowledge of moral principles and processes. On the other hand, the development of ethics as well as how to teach it can help auditors make ethical decisions when choosing different options. Also, the more ethically auditors perceive their organization's atmosphere, the more ethically they act in applying professional judgments. By examining ethical orientation as an imperative element of judgment and decision-making in the auditor's profession, this research can contribute to expanding the theoretical foundations of behavioral research in auditing as well as provide useful information for auditing policymakers to formulate auditing strategies based on.

The response of the human immune system to the COVID-19 disease is of vital importance in many ways, including determining the place of serological methods in the survival of patients. Therefore, the present study was designed and implemented with the aim of determining the specific antibody titer against SARS CoV-2 during hospitalization and one month after discharge in children hospitalized in Shahid Motahari Hospital in Urmia.

In this longitudinal study, hospitalized patients with positive RT-PCR test were included in the study due to COVID-19. Inclusion criteria included age less than 15 years and parental consent, and exclusion criteria included immune system disorder or developmental disorder and negative RT-PCR test. Demographic information and severity of the disease along with specific antibody titer of SARS-CoV-2 were evaluated and extracted for all patients.

The average age of the 40 studied patients was 2.48 years, and 32.5% of them were girls. The average level of IgG during discharge and one month after discharge was equal to 73.66 and 128.36, respectively, and it was significantly higher one month after discharge than during discharge (p<0.001). There was no statistically significant difference between the two sexes in terms of antibody titer during discharge (p=0.77) and one month after discharge (p=0.31). There is no significant relationship between the specific antibody level of SARS-CoV-2 during discharge (r=0.12 and p=0.45) and one month after discharge and length of hospitalization. There was no statistically significant difference between disease severity and antibody titer during discharge (p=0.54) and one month after discharge (p=0.20).

The specific antibody titer of SARS-CoV-2 increases significantly after one month of discharge. There was no significant difference between the level of this antibody during discharge and one month later between girls and boys and people with different severity of the disease. No significant relationship between antibody titer and hospitalization time was observed.

This study aimed to determine the efficacy of the therapeutic use of play on improving the attention span of children with Mild Intellectual Disability (MID) in elementary school.

This was a quasi-experimental study with a pre-test-post-test with a control group so that 30 girls with MID were selected from an exceptional school in Tehran City, Iran, via convenience sampling method and assigned to the experimental and control groups. The attention span of all subjects was assessed by the Toulouse-Pieron test and the Cognitive Diagnostic Battery (CDB) before and after the therapeutic sessions. The experimental group participated in 16 therapeutic play sessions (35 minutes for each session) for 8 weeks, but the control group did not. The analysis of covariance (ANCOVA) was used to analyze the data.

The mean±SD age were 9.80±1.32 and 9.73±1.22 for the experimental and control groups, respectively. In addition, the mean attention span in the experimental group varied from 7.60 to 18.78 after the therapeutic sessions. In addition, after the therapeutic sessions, a significant difference (P<0.001) was observed between the experimental and control groups relating to attention span. According to the Eta quotient, 94% of the variation in the attention span of the experimental group is due to participating in the intervention sessions.

Therapeutic use of play is an effective method to improve the attention span of children with MID. Therefore, the therapeutic use of play can be applied to improve the academic performance of students with MID and reduce negative outcomes due to inattention.

Jalal al-Din Rumi is the greatest Iranian poet and mystic of the 7th century AH, whose thoughts have always been the focus of attention. In the present article, the approaches to God's attributes from Rumi's point of view have been examined, analyzed and compared with the opinions of Islamic theologians. The mentioned topic is one of the most central issues in the field of theology, for which the history of human thought is full of affirmative and negative positions. This research, using the descriptive and analytical method, with the aim of explaining Rumi's approach to the mentioned subject, and by following and analyzing the six chapters of Masnawi, Rumi's most important work, explains his words about tashbih (anthropomorphism) and tanzih (transcendence) of God and compares them with the views of famous theological sects. The present paper shows that in the matter of knowing God, while believing in God's transcendence to be understood, described, seen, likened, etc., Rumi also accepts anthropomorphism and explains the combination of these two features in different ways in Masnawi. Regarding the narrative attributes and the verses implying anthropomorphism, Rumi's opinions are sometimes in line with Maturidiyyah's thoughts, and sometimes they originate from his independent opinion on this issue.

The goal of the present research was to study the effect of transcranial magnetic stimulation of the brain over selective attention and continuous function of children suffering from specific learning disability disorder.

The method of the present research was semi-experimental that was conducted by pre-test, post-test along with the control group. Twenty-six first to third-grade children suffering from specific learning disability disorder participated in this study, from the fifth district of the City of Tehran as a sample. In the pre-test stage, all participants were subjected to continuous and selective attention test, and then they were put in two groups of experiment and control. The participants of the experimental group were subjected to the intervention of transcranial magnetic stimulation. The duration of stimulation was 20 minutes for each session and the intensity of stimulation was set at 7 milliamperes. After the end of the intervention, the post-test stage was conducted and a covariance analysis test was used to analyze the data.

The results illustrated there is a significant difference between two groups of experiment and control in the variable of selective attention (f-50/20, p—0/001), and the variable of a continuous function (f-24/80, p-0/001), that according to the difference of means, the function of experiment group is better than the control group.

we can say that the use of approach of transcranial direct-current stimulation during 5 sessions can lead to improving selective attention and continuous function in children suffering from specific learning disability disorder.

Identification and monitoring of surface water using remote sensing have become very important in recent decades due to its importance in human needs and political decisions. Therefore, surface water has been studied using remote sensing systems and Sentinel-1 and Sentinel-2 sensors in this study. In this paper, two data fusion approaches and decision fusion improve the accuracy of surface water identification for the two study areas in Mazandaran province, Iran, due to dense forests, turbid rivers, and land Agricultural products have been proposed. Data fusion approach by increasing the spatial resolution of Sentinel-2 optical sensor from 20 meters to 10 meters and using radar dataset and water indices in one layer, monitoring surface water with much higher accuracy by classification using supervised classifiers such as Support Vector Machine (SVM), Neural Network (NN), and Random Forest (RF) were performed. Then, by combining the results using the Maximum Voting (MV) method, the accuracy of the results compared to the data fusion approach increased by 4 percent to 5 percent. Since narrow and confused rivers are not easily identifiable and extractable, the proposed approach was able to extract an accurate map of surface water.

Successful performance in mathematics depends on skills that are more basic. The purpose was to determine the effect of basic skills program on quantitative reasoning, math performance, and working memory in preschool children.

In a quasi-experimental study, 38 girls and 42 boys were in convenience selected from five-to six-year-old children of Borujen City in the school year 2020-2021. Then, 30 children (17 girls and 13 boys) identified as children at risk of math disorder with a score on one standard deviation lower than the average in the Stanford Binet Intelligence Test and the Basic Skills Assessment Test and m assigned to the experimental and control group. The experimental group participated in 24 training session. After the last session and five weeks later, the Stanford Binet Intelligence Test and the Basic Skills Assessment Test performed again. 

Relating to Eta coefficients, 88%, 29%, and 83% respectively of the variation in quantitative reasoning, math performance, and working memory of experimental group can explain by participating to the intervention sessions. The results of Bonfroni test showed that there is a significant difference between groups in pretest, posttest and follow-up phases.

Considering the improvement of quantitative reasoning, math performance, and working memory of preschool children, we can conclude that including similar programs in preschool not only leads to improvement of math performance but also prevents academic failures.

Genotype imputation in genomic selection schemes has been considered by researchers in recent years because it can reduce the costs of genomic selection without having a negative impact on the accuracy of genomic selection. In the genotype imputation process, markers that their genotypic information has been missed for any reason are imputed using various statistical methods.

To constructe genotypic matrix, a one morgan genome including one chromosome for 250 and 1000 individuals was simulated on which in different scenarios 250, 500, 750, 1000, 1500 and 2000 single necleotide polymorphismes (SNP) was distributed. In order to create genomic matrix including missing genotypes, genotypic information of respectively, 5%, 10%, 25%, 50%, 75% and 90% of SNPs was masked and then imputed with KNN. The percent of genotypes correctly imputed (the ratio of genotypes correctly imputed to total masked genotypes) as well as the correlation between primary genotypic matrix (no missing genotype) and imputed genotypic matrix were used as imputation accuracy.

In the population including 250 individuals, the accuracy of imputation in the scenarios of 5%, 10%, 25%, 50%, 75% and 90% missing genotypes, were 0.82, 0.82, 0.80, 0.76, 0.62 and 0.40, respectively, but by increasing the size of the population to 1000 individuals, the imputation accuracies as 0.83, 0.83, 0.82, 0.82, 0.71 and 0.54 were obtained which in the scenarios of 75% and 90% of missing genotypes the increase in imputation accuracy was noticable. The correlation between the primary genotype matrix and the imputed genotypic matrix also decreased with increasing percentage of missing genotypes. In a fixed population size, by increasing the number of SNP from 250 to 2000, imputation accuracy increased from 0.67 to 0.84. In addition, an inverse relationship was observed between MAF and imputation accuracy in a way that by increasing MAF from 0.01 to 0.5, imputation accuracy decreased by 15%. Computation time increased following increase in dimension of genotypic matrix. Bu increasing the percent of missing genotypes, the accuracy of predicted genomic breeding values decreased. In the scenarios of 5 and 10% of missing genotypes, no change in accuracy was observed, but in the scenarios of 75 and 90% of the missing genotypes, the accuracy of prediction of breeding values decreased by 16 and 32%, respectively.

In general, imputation accuracy of KNN was acceptable in such a way that up to 50% of missing genotypes, KNN imputed missing genotypes with 80% accuracy and therefore one could recommend this algorithm for genomic selection schems.

Today, power systems are operated close to their stability limits for economic reasons. On the other hand, with the occurrence of outage, the stability of the system has a problem that there are various solutions to compensate. The last and safest way to control and maintain system stability is load shedding. In this paper, under voltage load shedding is presented considering voltage dependent feeders load and also using the improved discrete particle swarm optimization algorithm (IDPSO). Since the load model is particular importance in the real load analysis, the decisions will be applied by considering voltage dependent load modeling. To ensure proper operation, the proposed method has been implemented using MATLAB software on the IEEE 30-bus test system by considering related constraints. For this purpose, two critical loads for the test system are considered and the results are examined. The results show that the proposed method provides the best location and amount of load shedding and indicates its effectiveness.

In the present study, the effect of phytohormone gibberellin on some physiological parameters of Tetraselmis suecica microalgae was investigated. Algae culture was performed under standard conditions with Gillard culture medium, temperature 25 ± 2 C°, light intensity 16: 8 (light/dark), salinity 25 ± 2 mg / l, and 24-hour aeration for ten days. Concentrations of 10, 20, 40, and 60 mg / l were added to the algae culture medium. Growth factors, pigments, photosynthetic factors, and biochemical composition were measured in the log phase. Based on results,  the highest rate of cell growth was observed in the treatment of 60 mg / l, although in other treatments there was a significant difference with the control (P <0.05). The highest amount of protein and carbohydrates was observed in the treatment of 60 mg / l (P <0.05). ). Total lipid content increased from 15.23 in control to 18.53 in 60 mg / l (P <0.05). Antioxidant potential, pigments, photosynthetic factors, and dry weight also showed a significant difference in the concentration of 60 mg / l compared to the control (P <0.05). The highest amount of chlorophyll a and chlorophyll b was observed at concentrations of 60 mg / l (P <0.05). Based on the results, gibberellin has a high potential for cell division, final density, antioxidant potential, cell size, and biochemical composition of Tetraselmis suecica. Also, Tetraselmis suecica can be a good candidate for marine aquatic larvae, drugs, antioxidants, and a rich source of compounds in biofuels.

Follicle-stimulating hormone (FSH) is necessary for the hypothalamic-pituitary-gonadal axis, and plays an important role in reproduction by binding to a specific receptor (FSHR) through β-subunit of FSH in the surface of the ovarian granulosa cells. This study aimed to characterize FSH β-subunit gene (FSHβ) polymorphism and its association with litter size (LS) using a sample of 118 Mehraban sheep. Polymerase chain reaction (PCR) was performed to amplify two fragments of 300 bp and 431 bp of the ovine FSHβ gene (Oar_v4.0; Chr 15, NC_019472.2). Polymorphisms in the studied fragments were then explored using single strand conformational polymorphism (SSCP) and DNA sequencing methods. A total of seven single-nucleotide polymorphisms (SNPs), including g.59078564 C>G, g.59078624 T>C, g.59078655 T>C, g.59078691 T>C, g.59078754 C>A, g.59080186 G>C and g.59080365 C>T, were found among the six detected SSCP patterns A to F. Moreover, two novel indel polymorphisms called e.g., g.59078702del8-bp−ins64-bp and g.59078726ins54-bp were identified among the three different SSCP genotypes patterns G to I. We found significant differences on prolificacy categories between SSCP genotypes patterns D, E and F (P < 0.01) that simultaneously represented SNP polymorphisms of g.59078754 C>A, g.59080186 G>C and g.59080365 C>T. Similarly, novel indel polymorphisms revealed a significant difference on prolificacy categories between SSCP genotypes patterns G, H and I (P < 0.05). Our results suggest that the FSHβ is a strong candidate gene to associate with the LS in sheep.