hasan barkati

Human resources, especially medical staff is one of the main components of health care system and organizational development. The purpose of this study was to estimate the required nurses for hospitals affiliated to Tehran University of Medical Sciences based on the models of the World Health Organization and Levine.
This study was cross-sectional and descriptive. Seven hospitals affiliated to Tehran University of Medical Sciences were selected as research sample. After collecting data of the number and distribution of the nurses, the data were entered into Excel software. Then, according to the WHO and Levine formula, estimated numbers of hospital nurses were compared with the current situation.
According to the models, the number of nurses in all hospitals was different with standard values. According to WHO model, the correlation was negative and most hospitals but Amir Alam, Baharloo, and Farabi hospitals had insufficient number of nurses. Also, according to Levine model, all hospitals except Bahrami and Amir Alam hospitals had insufficient number of nurses.
According to the World Health Organization and Levine model, the number of nurses in the studied hospitals was inadequate. This imbalance requires proper planning and standards to rectify the shortage of manpower, especially nurses in studied hospitals.

Cigarette smoking is one of the preventable causes of diseases and deaths. The most important preventive measure is technique to resist against peer pressure. Any educational program should design with an emphasis upon theories of behavioral change and based on effective educational program. To investigate the interventions through educational program in prevention of cigarette smoking, this paper has used the Extended Parallel Process Model (EPPM).

This study is a quasi‑experimental study. Two middle schools were randomly selected from male students in Shiraz. Therefore, we randomly selected 120 students for the experimental group and 120 students for the control group. After diagnostic evaluation, educational interventions on the consequences of smoking and preventive skills were applied.

Our results indicated that there was a significant difference between students in the control and experimental groups in the means of perceived susceptibility (P < 0.000, t = 6.84), perceived severity (P < 0.000, t = −11.46), perceived response efficacy (P < 0.000, t = −7.07), perceived self‑efficacy (P < 0.000, t = −11.64), and preventive behavior (P < 0.000, t = −24.36).

EPPM along with educating skills necessary to resist against peer pressure had significant level of efficiency in improving preventive behavior of cigarette smoking among adolescents. However, this study recommends further studies on ways of increasing perceived susceptibility in cigarette smoking among adolescents.

More than seventeen millions people die due to cardiovascular diseases which account for one third of death worldwide. Half of 60% of all mortality caused by acquired diseases throughout the world is due to heart disorders and this ratio will augment to 73% by 2020. It is known that individual lifestyle has a great influence on the well-being of cardiovascular system. Seven of the top ten etiologies leading to death are related to the pattern of lifestyle. This study explored various lifestyle-related factors affecting ischemic conditions. This study was performed as a case control investigation on 65 subjects along with 65 controls who were all admitted at Sevome Shaaban hospital in Damavand town of Iran. All data) demographic and life-style variables) were gathered, using three different types of questionnaire obtained from each person. p< 0.05 was considered as significant. Age, marriage status, smoking, physical activities, diet and mental health condition were shown to have a significant effect on ischemia (P <0.001). Insufficient physical activities, fatty and low fiber food as well as impaired psychology conditions were among the risk factors that contributed to Ischemic heart disease. Insufficient physical activities, fatty and low fiber food as well as impaired psychology conditions were among the risk factors that contribute to ischemic heart disease.