Islamic Azad University North Tehran Branch

About: Islamic Azad University North Tehran Branch is a education organization based out in Tehran, Iran. It is known for research contribution in the topics: Adsorption & Catalysis. The organization has 868 authors who have published 968 publications receiving 9987 citations.

(2,2'-Dimethyl-4,4'-bi-1,3-thia-zole-κN,N')diiodidomercury(II).

Abstract: In the title compound, [HgI2(C8H8N2S2)], the HgII atom is four-coordinated in a distorted tetra­hedral geometry by two N atoms from a 2,2′-dimethyl-4,4′-bithia­zole ligand and two I atoms. In the crystal structure, adjacent mol­ecules are connected by π–π contacts between the thia­zole rings [centroid–centroid distance = 3.591 (3) A].

The Monitoring Role of Institutional Ownership on the Relationship between Free Cash Flow and Assets Efficiency

Abstract: This study investigated the moderating effect of institutional ownership on the relationship between free cash flow and assets efficiency in Tehran Stock Exchange over the period 2008-2012. The results showed that there is a significant and negative relationship between free cash flow and asset efficiency. It means that in those firms which have a high level of free cash flow, managers are opportunists. Therefore, it caused to decrease in asset efficiency and increase in agency costs. The evidence showed that institutional ownership has not a meaningful moderating effect on the negative relationship between free cash flow and asset efficiency; it means that institutional ownership could not monitore the use of the firms' assets. Those firms which have a high level of free cash flow and high level of institutional ownership, have not experienced high level of asset efficiency and low level of agency costs.

Investigating the methodology of indexed articles in breast cancer, ovarian cancer, colon and rectal cancer in SID and MEDLIB databases within 2004-2014

Abstract: Introduction: Methodology is one of the main parts of a study, indicating its scientific status. The aim of this study was to review the methodology of indexed articles in three domains, including breast, ovarian, colon and rectal cancers in SID and MEDLIB databases from 2004 until 2014. Method: The study was a descriptive cross-sectional one. It was used a checklist for gathering the required data. The articles consisted of 748 ones indexed in SID and MEDLIB databases in the domains of breast cancer, ovarian cancer, colon and rectal cancers since 2004 until 2014. The sample size was determined through stratified sampling as 188 articles. The data were analyzed by SPSS software version 21 and descriptive method, including table and chart, frequency and mean percentage. Results: Most of the articles (%89) belonged to SID database and related to breast cancer (%80. 9). All indexed articles were applied ones and %44.4 of them was written for the purpose of curing diseases. The most important method was the observation method (%69.4). The observation-analysis method was applied the most (%53.5). Among intervention studies, the most important method was empirical method (%88.1). Conclusion: According to the results of this study, it is necessary to pay special attention to various research methods of Persian researches related to above mentioned research fields in order to resolve the need of other researchers and medical teams can easily access these studies.

Investigation of the relation between visual pollution and citizenry health in the city of Tehran (case study: municipality districts No.1 & 12 of Tehran)

Abstract: Background and Aim: Visual contamination is a kind of environmental pollution that over time, its effects and consequences are increasing, and this pollution may gradually provide a good ground for nerve stress and psychological problems. Method: In this study, we tried to study the status of visual contamination and its impact on the health of citizens in two urban areas of one and twelve using the distribution of questionnaires and field method. Results: The results of the analysis of the data obtained from the questionnaire revealed a significant relationship between visual contamination and four health indicators of citizens including physical signs, social function, anxiety, insomnia and depression. This means that wherever the pollution is higher, the health of citizens is at a lower level. Conclusion: Accordingly, the average index of physical symptoms and anxiety - insomnia in district 1 in a healthy condition and in the twelve region is in a mild injury situation. Also, the average social function index and depression in both regions indicate mild injury and favorable health status in them, and overall, the results indicate that the general health of District 1 in desirable situation and the twelve regions are in an unfavorable situation.