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Background: Permanent pacemakers are applied to treat some 2nd and 3rd degree AV blocks. Previous studies have shown the hemodynamic changes that may occur after pacemaker implantation. In this study, we have evaluated these hemodynamic changes from a different view point, with measurement of urinary sodium and blood pressure. Materials and Methods: This is a before and after clinical trial study in which 30 patients, who were hospitalized for permanent pacemaker implantation for the first time in Tehran heart center during 3 years, including 12 women (mean age 62.92 years) and 18 men (mean age 60.07 years), were tested for urinary specific gravity and sodium, blood pressure, blood sodium and potassium, before and after pacemaker implantation. Paired sample T test and Chi Square test were used for statistical analysis. Results: Systolic blood pressure was 136.5 mmHg and 120.6 mmHg before and after pacemaker implantation, (P<0.001). Also, after pacemaker implantation, urinary sodium rose from 83.45 meq/L to 106.61 meq/L (p=0.018). Conclusion: This study is consistent with previous studies, which showed hemodynamic changes after permanent pacemaker implantation including decrease in blood pressure and elevation of serum neuropeptides.

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Background: The respiratory symptoms in welding workers have been appeare by increasing use of welding various poisoning gases and fumes in machine industry. It is necessary to evaluating of frequency of respiratory symptoms with scientific methods. Methods and Materials: In this historical cohort study, 60 non-smoker welding workers with history of at least 6 months work in welding, and 60 non-smoker office workers who were not expoused to respiratory pollution were selected from machine industry factories of Arak. Data was gathered by questionnaire. Occupationalist performed physical exams and spirometery. Data was statistically analyzed. Results: There was a significant relationship between sore throat (p=0.02), cough (p=0.04), spectrum (p=0.01), and dyspnea (p=0.007) with working in welding. But in symptoms such as rinite, hoarsening, nasal congestion, epistaxis, respiratory assessment and spirometery results difference was not significant. Conclusion: Symptoms of upper respiratory tract stimulation in welding workers were significantly more than non-expoused workers.

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Background: Different studies have proposed the cognitive deficits as one of the main aspects of schizophrenia furthermore, the presence of psychosis in these patients can influence the degree of deficiency in executive functions .The purpose of this study is to compare the executive function in patients with schizophrenia, non-psychotic major depression and normal individuals. Materials and Methods: In this cross-sectional study, 28 patients with schizophrenia, 28 patients with non-psychotic major depression and 28 normal subjects were selected from hospitals in Tehran through available sampling method which were matched according to age, sex, and level of education. The executive functions of subjects were evaluated using Wisconsin Card Sorting Test, and data were analyzed using one-way ANOVA and Turkey post-hoc test. Results: Schizophrenic patients had poorer performance in comparison with non-psychotic depressives and normal individuals in all variables of Wisconsin test (P<0.001). Also, depressive patients showed more preservative error than normal subjects (P<0.001), but no significant difference was found between the two groups in the number of categories and specific error variables. Conclusion: Greater impairment in the executive functions in the Wisconsin card sorting test is mainly associated with psychosis which might be introduced as a special profile of schizophrenia. Noticing the amount of deficiency in executive functions in each group of patients, the positive or negative prognosis can be diagnosed initially.

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Background: Today, with raised use of antibiotics and prevalence of resistant strains, there is need for antimicrobial drugs that have fewer side effects than antibiotics. Rosmarinus officinalis is a medicinal plant which had many uses in traditional medicine. In this study, methanol leave extract of this plant is tested on various pathogens.

Materials and Methods: In this in vitro study, Rosmarinus officinalis was used to evaluate its antimicrobial effects. Methanol leave extract of this plant with concentrations of 400, 200, 100, and 50 mg/ml were prepared, and antibacterial activities were evaluated by well diffusion method on strains of Escherichia coli, Pseudomonas aeruginosa, Bacillus cereus and Staphylococcus aureus. Minimum inhibitory concentration and minimum bactericidal concentration were determined by the microplate method.

Results: In this study, the most efficacy of thanol extract of rosemary leaves was at concentration of 400 mg/ml against Pseudomonas aeruginosa and Escherichia coli. Minimum inhibitory concentration of the extract on the growth of these bacteria showed changes from 6.25 mg/ml to 100 mg/ml. Also MBC  of extract showed range  from 12.5 to 200 mg/ml respectively.

Conclusion: It was found that rosemary methanol extract inhibited growth of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa but did not inhibit of Bacillus cereus growth.

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Background: Physical activity and overweight both changethe body homeostasis for this purpose, in this study effect of two models of high and moderate intensity aerobic exercises on the amount of Adiponectin and Resistin were compared inobese and overweight females.

Materials and Methods: In this experimental study, 15 obese and overweight female (Mean age: 22.93±0.54 years weight: 75.15±2.07 kg hight: 160.6±1.38 Cm BMI: 29.24±0.73kg.m-2) were randomly selected as sample. Subjects were placed into high (33 min exercise, 85-90% of max hearat rate) and moderate (41 min exercise, 50-70% of max hearat rate) intensity aerobic exercise groups. Exercises lasted three days a week for eight weeks with an equal volume of consumed energy. In order to analyze data, independent-t test and Repeated Measure analysis of variance were used at a significance level of p<0.05.

Results: The results indicate a significant increase in Adiponectin after eight weeks of high-intensity aerobic exercise compared to moderate-intensity exercise (p=0.02). A significant reduction in fat mass and percentage was observed after moderate intensity exercise (p=0.03), too. In Addition, moderate intensity exercise caused a considerable decrease in Resistin after eight weeks (p=0.06).

Conclusion: High-intensity exercise appears to provide necessary metabolic stress to enhance Adiponectin, even without weight and fat loss.

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Background and Aim: The development of any society depends on the educational system of that society. The educational system can be efficient and successful when considering the academic performance of learners in different courses. This study aimed to investigate the effects of mental self-care education on students’ mental health and academic motivation.
Methods & Materials: This was a quasi-experimental study with unequal control and experimental groups. The statistical population of this study was students referring to school counseling centers; 40 of them (n=20/group) were selected by random sampling method. The Depression, Anxiety, and Stress Scale - 21 Items (DASS-21), and Academic Performance Rating Scale were used to collect the necessary data. Psychological self-care training was presented to the experimental group in ten 2-hour sessions. Then, a posttest was conducted on the study groups. Data analysis was performed using Multivariate Analysis of Covariance (MANCOVA).
Ethical Considerations: This article was approved by the Ethics Committee of the Islamic Azad University, Khomeini Branch (Code: IR.IAU.ARAK.REC.1399.001).
Results: The obtained findings indicated that mental self-care education was effective on students’ mental health (P<0.05). Furthermore, psychological self-care education was ineffective on students’ academic motivation.
Conclusion: Mental self-care education was used to improve mental health; however, this training did not affect academic motivation in the examined subjects.

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