Background and objective: Increasing rate of breast cancer and importance of early diagnosis of metastatic pulmonary nodules to improve treatment and prognosis led to utilization of multi-detector computerized tomography (MDCT). This study was performed to evaluate the accuracy of axial maximum intensity projection (MIP) versus the axial multi-planar reconstruction (MPR) Computed Tomography (CT) for detecting the metastatic pulmonary nodules in known cases of the breast cancer.
Subjects and Methods: Fifty women documented cases of the breast cancer underwent the routine multislice contrast- enhanced chest CT for detecting the metastatic pulmonary nodules before and after the chemotherapy. All proven metastatic nodules were evaluated by the axial MPR with a slab thickness of 1mm and MIP slab thicknesses of 5mm. The reduction in the size or complete absence after chemotherapy was regarded as a positive metastatic nodule.
Results: Two hundred fifteen true positive nodules between 2-38mm (mean=4. 5, SD± 4 for MIP and mean=5. 7, SD± 4.7 for MPR) were detected. The accuracy for detecting pulmonary nodules was significantly higher in 5-mm MIP compared to1-mm axial MPR (P<0.001 (. The sensitivity and positive predictive value of the MIP and MPR were 100%, 91% and 55.8%, 90%, respectively.
Conclusion: The Axial MIP with a slab thickness of 5 mm was significantly superior for detecting the metastatic pulmonary nodules compared to the 1-mm axial MPR technique.

After the global financial crisis in 2007 and 2008, there were shortcomings in the regulatory aspects. Basel Committee, a subsidiary of the International Settlements Bank, prepared the draft agreement which in accordance with Article VIII of the Basel 3 banking supervisors must be assured that banks have credit risk management process in which institution\'s risk situation is considered. The purpose of this research is practical, this study did not examine reasons and only models and methods are discussed in this paper. The research method is correlation method. All corporate customers of credit facilities and national banking network that have received credit facilities from National (Melli), Nation (Mellat) and Business (Tejarat) banks are defined as statistical population. The sample size is 370. Each of these banks in the sampling method considered as an organization. In the next step, several branches of different banks are selected by using simple random sampling and in the last stage by applying stratified random sampling, some firms which receiving credit from the banks in the years 2000 to 2010 were selected. The required data were collected by using library and field research methodology. In this study, the descriptive statistics methods and analysis and inferential statistical methods also were used. To investigate credit risk measurement models, significant correlation coefficients test, Coefficients of the linear probability model (bivariate regression and multiple regressions) and ANOVA were applied.

Reviewing the relation between economic growth and international trade is one of the important issues in international economic literature. However, the literature related to the relation between economic growth and international trade has found a particular place at macro levels. Whether foreign trade is driving force of a country`s development? Or on the contrary, the theory of comparative advantage is not consistent with growth and rapid development needs. Basically, the main issue is that whether countries will be able to make more benefit in the process of economic globalization or not? To answer this question, it should be noted that the success of a country depends on its economic structure, principles and rules governing that country and its capability in international market. The main objective of the present study is to investigate the effect of trade liberalization in economic growth conducted using the evidence of MENA countries. Based on the research findings, minimal tariff rates have negative effect in economic growth. Moreover, growth rate has a positive significant effect in international trade.

The aim of paper is studying the impact of perceived quality on customer satisfaction in e-markets. In this research, the impact of perceived quality and factors affecting it, including the appearance of the website and the quality of content, on the satisfaction of the customer in Shahrvand e-store is examined. Additionally, in this research perceived trust is examined as mediator variable. Regarding the method, the present study is a causal research which is conducted by survey and considering the aim, it is applicable. The statistical sample size for society is 280 that only 200 of the filled questionnaires were usable. Statistical analyses which were done based on structural equations confirmed the theoretical model and the direct relation between research hypotheses were proved. The results show that electronic service quality and trust have direct influence on the satisfaction of the customer. Consequently, site appearance and content quality have direct relationship with service quality and finally electronic service quality has a great impact on customer trust.

We deal, in this paper, with the form of the solutions of the following systems of rational third order difference equations

x_{n+1}=((x_{n-1}y_{n})/(y_{n}±y_{n-2})),
y_{n+1}=((x_{n}y_{n-1})/(x_{n}±x_{n-2})),

with a nonzero real numbers initial conditions.