نشریه مدیریت ارتقای سلامت
سال یازدهم شماره 4 (پیاپی 56، امرداد و شهریور 1401)

The dramatic growth of big data and its application in preventing waste of resources and increasing financial performance and supply chain health levels, need to be examined from different perspectives. This study aimed to determine the correlation between big data and supply chain health performance in employees of Tehran Intelligent Fuel System.

In this descriptive correlational study, the statistical population includes 110 employees in the Tehran Intelligent Fuel System. Considering the total statistical population, and according to Morgan's table, 86 people were included, 35 managers and 51 experts were selected. Data collection tools included: a demographic questionnaire, "Chen et al's Big Data Questionnaire" and "Kumar & Raj Supply Chain Health Performance Questionnaire". The validity of the instruments was assessed using content validity ratio, construct validity by convergent validity method, reliability by internal consistency method by calculating Cronbach's alpha coefficient, and composite reliability. Data analysis was performed in SPSS. 25, LISREL 8, and Smart PLS. 2 software.

The T-statistic for big data had reported being 0.776. The use of big data in supply chain decisions to the health performance of supply chain is estimated at 129.86 and the path of using big data in decision making is reported to be 0.742, which is a positive value and shows the correlation between these two variables. 

Big data has an effective correlation with supply chain health performance. Therefore, it is suggested that the authorities include online access to data and their management analysis in the organization to improve the health performance of the supply chain.

Emotional divorce is an abnormality in the family system that, although it does not lead to the separation of couples, but their married life lacks love, companionship and friendship and has negative consequences for the functioning of the family. The aim of this study was to determine the role of psychological capital and differentiation self in predicting emotional divorce in female teachers in Zanjan.

The present study was performed by descriptive-correlation method. The statistical population included all female teachers in education district 2 of Zanjan in 2019. The statistical sample was 274 people based on Krejcie & Morgan formula which was selected by convenience sampling method. In this study, demographic questionnaire, "Emotional Divorce Scale", "Differentiation of Self Scale" and "Psychological Capital Scale" were used. Content validity by qualitative method, and reliability by internal consistency method were evaluated by calculating Cronbach's alpha coefficient. The collected data were analyzed in SPSS. 25. 

Between psychological capital (R= 0.36, P<0.05) and its components including self-efficacy (R= -0.46, P<0.05), hopefulness (R= -0.46, P<0.0), resilience (R= 0.37, P<0.05) and optimism (R= 0.50, P <0.05) were negatively correlated with emotional divorce. Between differentiation (R= -0.43, P<0.05) and its components including emotional reactivity (R= 0.25, P<0.05), My position (R= 0.48, 05 P <0.0), positive correlation with emotional divorce and correlation between emotional divorce (R= 0.44, P <0.05) and fusion with others (R= -0.43, P<0.05) with emotional divorce there was a negative. The results showed that psychological capital and differentiation together could explain 30% of the variance of emotional divorce in women (P<0.05). 

Emotional divorce in women was predicted by psychological capital and differentiation. Therefore, it is recommended to counselors and family psychologists, considering the role of these variables in emotional divorce, with the help of couples to increase psychological capital and adjust differentiation. They should prevent emotional divorce.

The feeling of security plays an extremely important role in people's lives that human beings need to achieve a healthy life and maintain social relationships. The aim of this study was to determine the model of structural equations for the development of social ethics and sense of security through the mediation of social capital in parents.

The research method was descriptive-correlation. The parents of students in three elementary, junior high and high school in Ahvaz city in 2021-2022 were the statistical population of this study, 235 of whom participated in a multi-stage random method. Data collection tools included demographic questionnaire, "Social Ethics Development Questionnaire", "Security Feeling Questionnaire" and "Social Capital Questionnaire". Content validity was assessed using qualitative method and reliability was assessed by internal consistency method with Cronbach's alpha calculation. Structural equation model and SPSS. 24 and AMOS. 24 were used to analyze the data.

The proposed model had a good fit. There is also a positive and significant correlation between the development of social ethics and parents' sense of security (path coefficient 0.30). The correlation between the development of social ethics and social capital is positive and significant (path coefficient 0.34). The correlation between social capital and the feeling of security is positive and significant (path coefficient 0.23) and finally between the development of social ethics and the feeling of security mediated by social capital is a positive and significant correlation (path coefficient 0.11). 

 As a mediating role, social capital can increase the degree of solidarity, sense of security and the development of social ethics. Social capital is embodied in relationships between individuals and plays an effective role in promoting mental health by providing emotional and psychological support. It is suggested that psychologists and health professionals pay attention to the role of these variables in order to increase social ethics and consequently provide a sense of security.

Social networks provide a platform for narcissism and self- objectivism experiences. Therefore, the present study aimed to determine the pattern of structural equations of pathological narcissism based on knowledge of objectification and harmful use of social networks mediated by beliefs about appearance in women and men.

The present research method was descriptive-correlational. The statistical population of this research included all men and women over 18 years old in Ahvaz city, and 298 of them were selected using the convenience sampling method through social networks. Data collection instruments were demographic questionnaire, "Pathological Narcissism Inventory", "Objectified Body Consciousness Scale", "Generalized Pathological Internet Use Scale" and "Beliefs about Appearance Scale". Instrument validity was performed using content validity by qualitative method and reliability by internal consistency method by Cronbach's alpha calculation. Data analysis was performed using SPSS. 24 and Amos. 24.

The proposed model for women and men had a good fit. Also, knowledge of objectification with on pathological narcissism was significant in the female group, but not significant in the male group. Harmful use of social networks with on pathological narcissism was significant in both men and women. Awareness of objectification and harmful use of social networks with beliefs about appearance were significant in men and women (P <0.01). Among the indirect pathways, beliefs about appearance can significantly mediate the correlation of objectification awareness and the harmful use of social networks with pathological narcissism men, but were not significant in women.

Gender significantly modulates the effect of objectification awareness on beliefs about appearance in men. Also, gender significantly modulates the effect of harmful use of social networks on pathological narcissism in women. It is suggested that psychologists and health professionals pay attention to the role and relationships between these variables.

One of the causes of stress in parents that is associated with reduced social adjustment is the birth of a disabled child. Therefore, the present study aimed to determine the effectiveness of Mindfulness Based Cognitive Therapy" on social adjustment and parenting stress in mothers with children with physical disabilities.

The research method was quasi-experimental with pre-test and post-test and follow-up with the control group. The statistical population consisted of all mothers with children with physical disabilities who referred to Welfare Screening Center for Dolatabad in Rey city (Aftab, Kahrizak and Fashafoyeh Wards). Sampling method was purposefully selected (30 mothers) and randomly divided into intervention (15 people) and control (15 people) groups using lottery method. Data were collected using demographic questionnaire, "Social Adjustment Scale" and "Parental Stress Scale". Content validity and face validity was measured by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient. "Mindfulness-Based Cognitive Therapy" was performed for the intervention group for 8 sessions and the control group did not receive any intervention. At the end of the intervention for the control group, the intervention was performed. Pre-test before the intervention and post-test at the end of the intervention were received for both groups under the intervention and the follow-up period (3 months). The data were analyzed with SPSS. 24. 

There is a significant difference between the intervention and control groups after the therapy. The mean score of social adjustment increased and the score of parenting stress decreased in the intervention group compared to the control group (P <0.001). 

“Mindfulness Based Cognitive Therapy" increased social adjustment and reduced parenting stress in mothers with children with physical disabilities. It is suggested that the above method be used as a psychological intervention to increase social adjustment and reduce parenting stress of mothers with children with physical disabilities.

The use of “Whole Body Vibration Training” as a relatively new method of neuro-muscular training and strong mechanical stimulation is of interest for athletes of various disciplines. The aim of this study was to determine the ‎effect of “Whole Body Vibration Training” on body composition and some ‎cardiovascular risk factors in male students. ‎

In this quasi-experimental study, 20 male students of Alborz ‎University physical education students were selected purposefully and convenience and based on body mass index were ‎studied in 2 groups of “Whole Body Vibration Training” (10 people) and control ‎group (10 people). Data were recorded using a demographic questionnaire, ‎digital scale of personal scale model 180 kg and digital standing gauge of Seca ‎model 264. ‎Fasting blood samples were taken from the brachial veins and systolic blood ‎pressure was recorded using a mercury sphygmomanometer made by ‎Rossmax Company in Taiwan. The “Jackson and Pollock Skinfold Test” was used ‎to measure body fat percentage to estimate body composition. The validity ‎and reliability of the tests has been confirmed in previous studies. The ‎intervention group performed “Whole Body Vibration Training” (frequency: 30 Hz ‎and amplitude 4 mm) for 6 weeks. Data were analyzed using SPSS 22. ‎

The mean body composition (12.37±3.51) and high-density ‎lipoprotein (46.48±3.29) in the intervention group compared to the pretest ‎respectively (14.37±2.26) and (41.75±3.84) experienced significant ‎improvement. While none of the variables studied in this study in the control ‎group and also triglyceride, fasting glucose and systolic blood pressure in the ‎intervention group did not change significantly (P>0.05). ‎

The results showed the effect of “Whole Body Vibration Training” with the frequency and amplitude used on improving the body composition and high-density lipoprotein of male students. It is recommended to use “Whole Body Vibration Training” to improve body composition and cardiovascular risk factors as one of the new training methods with special and safe achievements, low cost and applicable in work and home environment with the same protocol.

The quality and effectiveness of the performance of organizations is a determining and vital factor in the realization of development plans and welfare of that organization. The aim of this study was to determine the mediating role of job involvement in the relationship between personality traits and job performance in the staff of department of education, NAJA and Tehran Municipality.

The present study was performed by descriptive-correlation method. The statistical population included all staff of department of education, NAJA and Tehran Municipality in Tehran in 2021. Among them, 400 people were selected by simple random form by random number table method and single-stage cluster random methods. In this study, demographic questionnaire, "Job Performance Questionnaire", "Job involvement Questionnaire" and "NEO-Five-Factor Inventory" were used. Content validity was assessed by qualitative method and reliability by internal consistency method was calculated by calculating Cronbach's alpha coefficient for questionnaires. Data analysis was performed in SPSS. 25 and Smart PLS.3.

The direct path of responsibility (β = 0.35, P <0.05) was significant with employee job involvement (β = -0.46, P <0.05). Direct path of extraversion (β = 0.094, P <0.05), responsibility (β= 0.29, P <0.05), and job involvement (β = 0.042, P <0.05). It was significant on the job performance of employees. The overall path of extraversion (β= 0.089, P <0.05), and responsibility (β = 0.31,   P <0.05), was significant with employees' job performance. Indirect path of extraversion (β= -0.004, P <0.05), agreeability (β=0.000, P<0.05), and responsibility (β=0.015, P<0.05), mediated by job involvement on job performance was not significant.

Considering the significance of the direct path of responsibility, extraversion and job involvement with employees 'job performance, counselors and psychologists are suggested to take measures to increase job involvement and responsibility by increasing the role of these variables in increasing employees' job performance.

Today, the prevalence of risky behaviors among youths has become one of the most important and widespread concerns of human societies. The aim of this study was to develop a model of the structural relationship of risky behaviors based on interpersonal sensitivities with the mediating role of emotional creativity in students of Islamic Azad Universities of Isfahan Province. 

The present study was conducted by a descriptive-correlation method. The statistical population of the present study included all students studying in the second semester of the academic year 2020-2021 in Islamic Azad universities of Isfahan Province. A total of 384 individuals were selected using random cluster sampling. Data were collected using with demographic questionnaire, "Youth Risk Behavior Survey", "Interpersonal Sensitivity Measure" and “Emotional Creativity Inventory”. Content validity was measured by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient. Data analysis was performed in SPSS. 24 and PLS. 3. 

Interpersonal sensitivities were inversely and negatively correlated with emotional creativity (β= -0.60, t= 9.87). Emotional creativity was inversely and negatively correlated with high-risk behaviors (β= -0.54, t=4.98). Interpersonal sensitivities were directly and positively correlated with high-risk behaviors (β=0.41, t=5.85). Finally, the correlation of interpersonal sensitivity with risky behaviors was confirmed by emphasizing the mediating role of emotional creativity (t=80.59). According to the model results, the prediction of students' high-risk behaviors based on interpersonal sensitivity had a favorable fit due to the mediating role of emotional creativity in students.

Students risky behaviors are predicted based on interpersonal sensitivity due to the mediating role of emotional creativity in students. Therefore, it is suggested that by holding workshops and educational programs and producing appropriate content to inform students and their families and university officials to reduce risky behaviors.