فهرست مطالب m. esmaeeli

As one of the promising approaches, the thermocatalytic hydrogenation of carbon dioxide to methanol through a heterogeneous catalyst has attracted much attention in the past decades. In industry, methanol is produced from the reaction of syngas (H2+CO) and carbon dioxide over CuO/ZnO/Al2O3 (CZA) catalysts. Co-precipitation of Cu/Zn/Al nitrates by sodium carbonate is the dominant and standard technique used for the industrial synthesis of methanol catalysts. This three-component catalyst is very sensitive to slight changes in metal components and synthesis parameters. In this study, the effect of calcination temperatures (300, 350, and 400°C) and aging time (2, 7, and 18 hours) on the structure and textural properties of CuO/ZnO/Al2O3 catalysts have been investigated using the BET, XRD, H2-TPR, and FE-SEM analyses. The results show that the most appropriate catalyst could be synthesized when the calcination temperature and the aging period were set to 350°C and 7 hours, respectively.

Bipolar disorder as a complex chronic disease is characterized by mood changes, mental pain followed by harmful behaviors such as suicide attempts. The present study was conducted with the aim of determining the relationship between suicidal thoughts and mental pain of people with bipolar disorders in 2022.

This study is a cross-sectional descriptive study on 200 patients with bipolar disorder selected from patients admitted to psychiatric wards in Iran hospital by continuous sampling. After obtaining written consent, mental pain and Beck suicidal ideation questionnaires were completed. Descriptive data were analyzed and reported using tables of frequency, mean and standard deviation and quantitative data by inferential statistics using independent t-test, chi-square and analysis of variance in SPSS-v.16 software.

Mental pain has a direct relationship with suicide in patients with mood disorders (0.653>0.001), as there was a direct and significant correlation between suicidal thoughts and all dimensions of mental pain except social distancing and emptiness. The highest correlation of suicidal thoughts was with the dimension of emotional disturbance (r=0.882) and the lowest correlation was with the dimension of confusion (r=0.182). Discussion and

The findings of the present study indicate the association and direct relationship between mental pain and suicidal thoughts in patients with bipolar disorder and the importance and necessity of considering this case in the treatment of these patients.

The aim of the current study was the investigation and comparison the effect of two methods of career counseling based on social learning theory and narrative approach on reappraisal and suppression as strategies of emotion regulation of teachers in service during school year of 2012-13 in Isfahan city. This is a quasi-experimental study with Pretest-Posttest design with control group. 30 teachers were selected by using available sampling and randomly divided to two experiment and control groups (10teacher in each group). Data was gathered by using emotion regulation questionnaire and was analyzed by using SPSS- 16 and analysis of covariance and LSD test. Teachers in experimental groups participate in career counseling base on social learning theory and career counseling based on narrative approach, seven sessions, weekly. The results showed that both career counseling base on social learning theory and career counseling based on narrative approach have significant effect on reappraisal (P<0/001) and suppression (P<0/001) and results in post hoc LSD test showed that there was no significant differences between the effect of two methods on reappraisal and suppression (p>0/05). Career Counseling can increase reappraisal and also decrease suppression.