BackgroundOrganizational citizenship behavior (OCB) improves efficiency and employees’ participation and generally provides a good ambiance. This study was conducted to determine the role of job satisfaction (JS), organizational commitment (OC) and procedural justice (PJ) in explaining OCB among nurses working in fifteen educational-treatment centers in Tehran-Iran, to provide guidelines for health care managers’ further understanding of how to encourage citizenship behavior among nurses.MethodsIn this multi-center descriptive-correlational study 373 nurses were evaluated through a Multi-stage cluster sampling method after obtaining approval from the Ethics Committee of Islamic Azad University, Tehran Medical Branch and Tehran University of Medical Sciences Research Deputy. Nurses who signed the informed consent and holding a bachelor or master degree, having a minimum one year of job experience and not having organizational management position during the questionnaire distribution were included in the study. In order to collect data, Demographic questionnaire, Podsakoff et al. (Leadersh Q 1(2):107–142, 1990) OCB questionnaire, OC questionnaire, Aelterman et al. (Educ Stud 33(3):285–297, 2007) JS questionnaire and PJ questionnaire were used. These questionnaires were translated into Persian and content validity was confirmed by an expert group; their reliability was calculated by the internal consistency Cronbach alpha coefficient and it was satisfied. Data were analyzed by descriptive statistics, Comparative mean tests, correlation coefficient and multiple-regression in the SPSS software version 11.ResultThe general mean and all five aspects of OCB that ranked higher than 3 were evaluated in a “quite desired” state. The mean for perceived procedural justice, the general mean for JS and the mean of general grade for OC from the nurses’ was in “quite desired” state. Finding from multiple regression indicated that OC and PJ exhibit about 19 % of OCB variance totally which is statistically significant (P < 0.01). JS had no significant impact on explaining OCB.ConclusionOC was the strongest predictor of nurses’ OCB followed by perceived procedural justice. So, improving these factors can initiate better citizenship behavior among nurses.
The aim of this study was to determine the larvicidal activity of Lawsonia inermis against Anopheles stephensi as the main malaria vector in Iran. This study was carried out from February to July 2011. Larvicidal activity of L. inermis was studied in the range of 4 -4000 PPM in the laboratory against early and late stages of larvae of An. stephensi. The larvae were reared in the insectarium. The LC50 and LC90 values of the larval stages of An. stephensi were calculated by probit analysis and regression line draw using Microsoft office excel 2003 software. The highest toxic effect of L. inermis was found at 4000 PPM and the lowest at 4 PPM against larval stages I and II. The same result was found against larval stages III and IV. The LC50 and LC90 was found as 413.8 and 3366.3 respectively against larval stages I and II while against late stages found as 696.9 and 3927.7 respectively. This study suggests that L. inermis extract can be used as an alternative larvicidal compound during the IPM programs for the An. stephensi control. It is recommended to investigate the competency of other similar plants to malaria control.
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