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This paper aims to present a black-box fuzzy system identification method coupled with genetic algorithm optimization approach to predict the mixture thermal conductivity at dissimilar temperatures and nanoparticle concentrations, in the examined domains.

WO3 nanoparticles are dispersed in the deionized water to produce a homogeneous mixture at various nanoparticles mass fractions of 0.1, 0.5, 1.0 and 5.0 Wt.%.

The results depicted that the models not only have satisfactory precision, but also have acceptable accuracy in dealing with non-trained input values.

The transmission electron microscopy is applied to measure the mean diameters, shape and morphology of the dry nanoparticles. Moreover, the stability of nanoparticles inside the water is evaluated by using zeta potential and dynamic light scattering (DLS) tests. Then, the prepared nanofluid thermal conductivity is presented at different values of temperatures and concentrations.

In May 2014, a new reform in the health sector of Iran was implemented called “health evolution plan.” In the first phase of this reform, the government reduced out-of-pocket payments for service delivery by paying subsidies to the services and after that a revision was done to the medical services values book to improve equity and increase motivation of health professions. One of the affected services in this reform was coronary artery bypass surgery. The purpose of this paper is to show the effects of HEP on costs of coronary artery bypass surgery.

A before-after study was done for this purpose and 167 patients’ total costs and out-of-pocket payments were calculated for the years 2013 (before) and 2014 (after) the reform in three private hospitals of Rasht city, Iran. Econometrics models were estimated after adjustment of confounding variables.

The results of this study showed that surgery costs increased significantly from $1,643.3 to 2,119.5. Nursing and other costs increased significantly from $290.3 to 414.2 and anesthetize costs increased from $619.2 to 947.01. The results of regression model showed that total costs increased $3,008.6 after adjustment of confounders (p-value=0.037). However, no significant changes were found for out-of-pocket payments and out-of-pocket percentage.

The study findings revealed that HTP was not successful enough in financial protection in the private sector.

Equal distribution of health human resources is a major issue to achieve human rights in healthcare. Rural family physicians (RFPs) as a part of health human resources play an important role in delivering health services, so the purpose of this paper is to calculate amount of inequity in distribution of RFPs in Iran.

In this study, the authors tried to find inequity in the distribution of RFPs in the provinces of Iran. For this purpose, inequity indices containing concentration curves and indices were calculated by ranking health-adjusted life expectancy (HALE). Furthermore, a regression model was estimated to find the pattern and influencing factors of inequity in the distribution of RFPs.

The number of male RFPs was significantly higher in Sistan va Baloochestan, and in the same line, the number of female RFPs was higher in Zanjan province. Concentration index of total RFPs was 0.0568 (not significant) (males= 0.041, females= 0.0718). The results of regression model showed that HALE and per capita GDP did not have any significant relationship with RFPs distribution (HALE p=0.753, GDP p=0.792).

The RFP plan was successful in enhancing equal access to physician and health care services relatively. However, gender imbalance in distribution of RFPs was high especially in less-developed regions.

The purpose of this paper is to investigate the competitiveness of the Iranian leather value chain (LVC) and compare that with those of nine other countries including China, Pakistan, Turkey, Republic of Korea, Indonesia, Spain, Italy, Brazil and the USA. The results presented in the paper seek to assist in assessing the competitive performance of the LVC in Iran. In addition, based on Porter's diamond of competitive advantages, the aim is to provide recommendations to improve the competitive performance of the industry.

An economic method, i.e. revealed comparative advantage (RCA), as a well‐known approach, is used to investigate the competitive performance of LVC in Iran. The LVC products analyzed in this research include hide, skin, leather manufacture, trunks and cases, and footwear. In addition, in order to investigate the factors which affect the low competitive performance, a questionnaire based on Porter's diamond of competitive advantages was designed and completed by researchers and practitioners working in the field of leather industry. Finally the reasons for low competitive performance of the industry are discussed.

The results reveal that the competitiveness of the Iranian LVC is low, compared with those of some other countries. China and Italy have superior comparative advantages in the period studied. The results also indicate that except one product, Iran has no comparative advantage in LVC industry. In addition, Iran has mainly focused on the upstream sector of LVC whereas China and Italy compete more in the downstream sector which offers more value added products. The results also reveal that among the elements studied, specialized factors, availability of capital, quality of demand and stability of macroeconomics highly influence the competitive performance of LVC in Iran. This is followed by subsequent recommendations on how best to improve the competitive performance of the industry.

The results of the investigation presented in this paper give an insight into the competitiveness of the LVC in Iran compared with nine other countries which play an important role in this industry in the world. The results also confirm that RCA can be used as an effective approach to assess the competitive performance of industries. Furthermore, reommendations provided in this paper assist in improving the competitive performance of the industry. In general, the findings should prove useful for both researchers and practitioners.

Education is a human right and access to high quality education is key to sustainable socioeconomic development. Improving the quality of higher education institutes is essential for generating the productive human resources. Assessing the quality of higher education from the students’ perspective can be considered a crucial factor in the monitoring of service quality in universities. The purpose of this paper is to evaluate the quality of educational services in a higher education institute, the Kermanshah University of Medical Sciences (KUMS), in the west of Iran.

A multistage sampling method was used to select 346 students from the KUMS, who were enrolled in the second semester of the academic year 2015-2016. The SERVQUAL questionnaire was used to gather data on students’ perceptions and their expectations about the quality of educational services. The authors used a statistical significance level of 0.05 to examine the gap between the students’ expectations and their perceptions of service quality in five dimensions, namely tangibles, responsiveness, reliability, empathy and assurance.

The results showed that there was a negative service quality gap in all five dimensions. The overall mean score of students’ expectations and their perceptions was 3.19±0.44 and 2.4±0.45, respectively. The score gap between the overall mean score of perceptions and expectations of students was −0.79, which was statistically significant (p<0.0001). The highest and lowest quality gaps were related to the assurance (−0.84) and tangible (−0.70) dimensions, respectively.

The study indicated that the quality of educational services provided in the KUMS did not meet students’ expectations in five dimensions of service quality. Thus, it warrants further investigations to determine how to improve the quality of educational services in higher education institutes such as the KUMS.

The Health Sector Evolution Plan (HSEP) is the most recent reform in Iran’s health care system that was launched in May 2014 in all university-affiliated hospitals to reduce health care expenditure for patients, while improving the efficiency and quality of hospital services. The purpose of this paper is to evaluate the impact of the HSEP on the performance of 15 hospitals affiliated with Kermanshah University of Medical Sciences (KUMS), located in the western region of Iran.

The Pabon Lasso model was used to measure the performance of hospitals before and after the implementation of the HSEP in 2013-2014 and 2015-2016, respectively. Three indicators of average length of stay (ALoS), bed occupancy rate (BOR) and bed turnover rate (BTR) were analyzed by the Pabon Lasso model.

The results showed that the average ALoS, BTR and BOR before the introduction of the HSEP were 2.59 days, 92 times and 57 percent, respectively, and the corresponding figures for these indicators after the implementation of the HSEP were 2.61 days, 98.9 times and 59.9 percent. The results indicated that before the introduction of the HESP, 40 percent of hospitals were in zone 1 (poor performance: low BTR and BOR and high ALoS), 27 percent in zone 2, 20 percent in zone 3 (good performance: high BTR and BOR and low ALoS) and 13 percent in zone 4. After the HSEP, the proportion of hospitals in zones 1-4 was 33, 27, 20 and 20 percent, respectively.

This study is the first to use the Pabon Lasso model technique to evaluate the impact of the HSEP on hospitals affiliated with KUMS.