mohammadreza rezazadeh

The multi-step differential transform method (DTM) adopted from the standard DTM is employed in this case study to solve a model of the transesterification reaction. The DTM is considered in a sequence of time intervals. The accuracy of the proposed method is confirmed by comparing its results with those of the fourth-order RungeKutta (RK4) method. In addition, the experimental results are investigated with the Multi-step DTM to demonstrate the efficiency and effectiveness of these chemical reactions obtained in the laboratory. The present findings confirmed the effectiveness of using the multi-step DTM in validating the chemical models obtained in laboratories.

We are concerned with an analysis performed to simulate the steady-state Walter's B' viscoelastic fluid in a 3-D space across the ground and a porous elliptic plate. We study the effect of viscoelasticity and with the help of a suitable resemblance transformation for components of velocity, fundamental equations are then reduced to a set of ODEs which are then solved by the Homotopy analysis method (HAM). Impacts of elasticity and cross-flow Reynolds number are discussed.

Infertility as a threat to reproduction and survival experience provides related stress for infertile couples. Since stress is the ability to activate the attachment, infertility and stress reactions may affect the to adapt of infertile couples. The present study was aimed to investigate prediction between attachment styles and adjustment to infertility. This end, A total of 192 infertile women referred to the Infertility treatment clinic at Royan Institute participated in this study. Participants were asked to complete demographic information questionnaire, Adjustment to Illness Scale (AIS) and Adult Attachment Inventory (AAI). Correlation was used to test the hypothesize. The results indicated significant positive correlations between secure attachment styles with adjustment to infertility and the significant negative correlations between insecure attachment styles with adjustment to infertility. Based on the results of the present study, it can be concluded that attachment styles revealed correlation with adjustment to infertility. we can conclude secure attachment and insecure are effective on adjustment infertility And attachment-based therapy will be effective in adjustment of peaple with stressful experience.

The aim of the present study was to examine the relationship between parenting styles and children's marital satisfaction. Two hundred and seventeen (123 women, 94 men) married participants completed Parental Authority Questionnaire (PAQ) and the Golombok Rust Inventory of Marital State Questionnaire (GRIMS). The results indicated that the authoritative and permissive parenting styles had a positive significant association with marital satisfaction of the children, whereas the authoritarian style used by parents had a negative significant association with their offspring's marital satisfaction. According to the findings of the present study, it can be concluded that the levels of children’s marital satisfaction are possibly influenced by the parenting styles of their parents.

The main purpose of the present study was to explain adjustment to infertility indices in terms of relationship quality، couples'' beliefs، and social support. A total of 100 couples (100 men، 100 women) participated in this study. Participants were asked to complete the Adjustment to Illness Scale (AIS)، the Golombok Rust Inventory of Marital state (GRIMS)، the Survey of Personal Beliefs (SPB)، and the Multidimensional Scale of Perceived Social Support (MSPSS). The results showed a significant negative association between marital problems and adjustment to infertility. Irrational beliefs and social support showed negative and positive correlations with adjustment to infertility، respectively. No significant difference was shown between men and women in terms of adjustment to infertility. The results revealed that adjustment to infertility could be explained by indices of marital relationship quality، personal beliefs، and social support. Based on the results of the present investigation، the importance of psychosocial characteristics of infertile couples، as well as routine medical services، is suggested. This can lead the couples to more adjustment to infertility and improvement of their mental health state.

The purpose of the study was to delve into the role of self – knowledge procedures and religious orientation in "character strength". 315 students (227 male and 88 female) were asked to fill in the following questionnaires: Integrative Self-Knowledge Scale (Qorbani et al 2008), The Measure of Mindfulness (Brown and Ryan, 2003), The Revised Measure of Religious Orientation (Gorsuch and McPherson's 1989), and Values in Action Inventory, self – report questionnaire (Peterson 2004). The results revealed that there is positive correlation between character strength with integrative self – knowledge, mindfulness and individual intrinsic – extrinsic religious orientation. Regression analysis indicated that integrative self – knowledge, among afore – mentioned variables, plays the most effective role in determining various character strengths, moreover, among all forms of religiosity, intrinsic orientation was the only form to determine variety of character strengths. After controlling self- knowing procedures (applying hierarchical regression), intrinsic religious orientation succeeded in determining great deal of behavioral capabilities.

Marital problems introduce serious challenges for many couples. What is the role of irrational beliefs–as a cluster of intrapersonal variables–in developing such problems? What is the role of the couple's attachment styles toward each other, as an example of interpersonal variables, in decreasing or worsening these problems? In response to these questions, the present study was set up to investigate the moderating role of attachment styles in the relationship between irrational beliefs and marital problems. Participants were 300 married individuals (150 males, 150 females) living in Kerman at the time of the investigation. All the participants were asked to complete the Golombok Rust Inventory of Marital State Questionnaire (GRIMS), the Survey of Personal Beliefs (SPB) and the Adult Attachment Inventory (AAI). The results showed that irrational beliefs and insecure attachment styles were positively associated with marital problems. In contrast, secure attachment style was negatively associated with marital problems. Insecure attachment styles were positively associated with irrational beliefs, but this correlation was negative for secure attachment style. The results of hierarchical regression analysis showed that attachment styles moderate the relationship between irrational beliefs and marital problems. Based on the results of the present study it can be concluded that the relationship between irrational beliefs and marital problems is not a simple linear one and is moderated by the couple's attachment styles.