مطالب

The backing of the fuzzy ideal is normal ideal in some ring and in same time there fuzzy set whose is not fuzzy ideal and it backing set is ideal, i.e., it crisp is normal ideal. Consequently, in this paper we constructing a fuzziness function which defined on fuzzy sets and assigns membership grade for every fuzzy set whose it backing set are crisp ideal. Now, Let  be collection of all fuzzy subsets of ring  and , and the function  defines from  to, such that the value of the function is greater than zero if the crisp set of fuzzy set is ideal, and the value of the function is equal to one when the crisp set is maximal ideal or is the ring  itself. But if the support of the fuzzy set did not ideal then the value may be equal to or large than 0. Therefore, we add another condition to the fuzziness function to be more determined with respect to the fuzzy set. From above we try to find relation between the fuzzy ideal and its crisp set. This concept is derives from the open grade for all fuzzy set in fuzzy topological space which called smooth topology.

Environmental pollution and rapid depletion are among the chief concerns about fossil fuels such as oil, gas, and coal. Renewable energy sources do not suffer from such limitations and are considered the best choice to replace fossil fuels. The present study develops a mathematical model for optimal allocation of regional renewable energy to meet a country-wide demand and its other essential aspects. The ultimate purpose is to minimize the total cost by planning, including power plant construction and maintenance costs and transmission costs. Minimum-cost flow equations are embedded in the model to determine how regions can supply energy to other regions or rely on them to fulfill annual demand. In order to verify the applicability of the model, it is applied to a real-world case study of Iran to determine the optimal renewable energy generation-transmission decisions for the next decade. Results indicate that the hydroelectric and solar power plants should generate the majority of the generated renewable electricity within the country, according to the optimal solution. Moreover, regarding the significant population growth and waste generation in the country’s large cities, biomass power plants can have the opportunity to satisfy a remarkable portion of electricity demand.

Objective: The present study was conducted to investigate the effectiveness of Sahajaoga and Mind Strengthening Yoga exercises on the anxiety test of female children with attention deficit hyperactivity disorder with gastrointestinal problems in Karaj. Method: The study is semi-experimental in the form of pre-test-post-test with the control group. . According to the input and output criteria, 30 people were selected and divided into 3 groups (two experimental groups and one control group). Data collection tool was a questionnaire for diagnosing hyperactivity disorder along with attention deficit disorder and Abolghasemi exam anxiety questionnaire. The interventions took place in eight sessions and the subjects were examined before and after the interventions with the test anxiety test. Results: The results of the present study, after collecting and analyzing the data by covariance analysis test, show that Sahajayoga and Mind Strengthening Yoga exercises significantly (at p <0.05) confirm the assumption that the sessions performed were effective. . In other words, after the intervention of Sahajayoga technique, about 98% and after the implementation of mind strengthening yoga, about 94% of the change in the dependent variable is due to the change in the independent variable. In fact, the Sahajaoga and Mind Strengthening Yoga training is effective in reducing the anxiety test of this group of children. Conclusion: The overall findings suggest that yoga-based training has a positive effect on reducing anxiety in children with attention deficit hyperactivity disorder and gastrointestinal problems. Therefore, it is recommended to use this method in medical centers to improve the anxiety and digestive problems of children with ADHD.

Extramarital relations are among the main problems in the relationships of married couples that can result in psychological disorders, tensions between couples, and even physical problems in the people involved. The risk of contracting sexually transmitted diseases, including HIV/AIDS, is high among the people who have extramarital relations. A large number of studies have addressed this issue, but there is no consistency in the results, and no research has reviewed them systematically. This study aims to depict a comprehensive image of the relationship between extramarital relationships and contracting HIV/AIDS. This systematic review will be conducted using Pubmed, PsycINFO, MEDLINE, EMBASE, Scopus, ProQuest, Web of Science, and Google Scholar, as well as the grey literature with no restriction regarding the language. All types of studies investigated the relationship between extramarital relations and HIV/AIDS will be included. The population of the study will be considered the people more than 18 years old with extramarital relationships in their lives at the time of research or before. Two independent reviewers will perform the study selection and data extraction. The assessment of the risk of bias will be implemented using the JBI Critical Appraisal Checklist. Publication bias will be assessed by funnel plots, Begg’s, and Egger’s tests. Heterogeneity will be evaluated using the I2 statistic and the χ2 test. Also, we will conduct subgroup analyses for the population and all Meta-analyses will be performed using Stata V.13 software. The findings will reveal a comprehensive picture of the relation between extramarital relationships and HIV/AIDS that can improve policy decisions, leading to a reduction and providing improved special services for individuals, couples, and families, and society who faced this problem.