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A B S T R A C T BACKGROUNDThe organizational power in nurses makes them function more professionally, increasing their job satisfaction. Hence, a good understanding of this issue can have a significant effect. We wanted to investigate the nurses' perception of organizational power in the paediatric wards. METHODSThis descriptive study was carried out in 2017 in the paediatric ward of Motahari Hospital in Urmia. A total of 175 nurses were recruited and studied using the organizational power questionnaire developed by Sieloff-King. Validity of the questionnaire was assessed using content validity, while its reliability was assessed using Cronbach's alpha, which was 0.89. Pearson's correlation test was also carried out to determine the relationship between the demographic variables and nurses' perception of organizational power. RESULTSThe results showed that 52.52% of nurses had a good perception of organizational power, while overall perception of organizational power was 127.75 ± 17.99. As far as the items in the power subsets are concerned, the highest score was gained by role play and the position of the nursing group. The lowest score was also obtained by the resource and environmental factors. Furthermore, there was an inverse relationship between age and position subsets, and younger nurses had better perception of this issue. CONCLUSIONSBased on the results of this study, it is necessary to set the scene for nurses to get more acquainted with the organizational power and its effect on the quality of health care. It is also necessary to improve nurses' perception of the organizational power and the nursing frameworks and models as part of an appropriate approach.

Background: Substance abuse has a reciprocal association with the individuals' general health; and its incidence among medical students is highly variable over time. Objectives: The present study aimed to investigate the factors involved in the substance abuse and its association with medical students' general health. Methods: The present mixed-method study was conducted on the medical students of Azad University of Tabriz in 2018 with Stratified Random Sampling. Data were collected using the General Health Questionnaire-28 (GHQ-28) and a researcher-made substance abuse questionnaire and then was analyzed through tests, chi-square, ANOVA, post hoc Howell Games and Multivariate regression models were using the SPSS16. Results: 150 medical students with a mean age of 26.98±3.46 are participating in the present study. 17.3% of students were substance abusers. The highest rate of abuse was related to Ritalin. The mean scores of the general health of addicted and non-addicted students were 42.65±11.95 and 23.62±16.83 respectively, and it was statistically significant (p= 0.012). Academic pressure was the main reason for Substance Abuse. Anxiety and insomnia were the most essential predictors decreasing general health among students with substance abuse. Conclusion:The prevalence of substance abuse among medical students was unexpected. Medical students are at risk of addiction due to the inadequate distribution of academic pressure and other predisposing factors. The implementation of practical strategies in training environments, families, and society is very important to prevent and improve the current status.