For spatial data that are correlated in terms of their locations in the underlined space the moving block bootstrap method is usually used to estimate the precision measures of the estimators. But in this method, the boundary observations have less chance of presence in blocks resampling than the other observations. In this paper, an algorithm is given for separate block bootstrap to estimate the precision measures of kriging spatial predictor. Then, it is shown that the bias estimation of kriging with separate block bootstrap method is unbiased and the kriging variance estimator is consistent. Finally, in a simulation study, the efficiencies of the separate and moving block bootstrap methods are compared for measures of estimation precision.

1. Introduction: Earthquake intensity measures (IMs) are used in assessing the seismic performance of structures. They can also be considered as scale factors for recorded ground motions in incremental dynamic analysis. “Sufficiency” and “efficiency”, that will be estimated using linear regression analyses, are two criteria for examining the concluded accuracy of using IMs in the structural performance assessment.

Lahiri (2003) proposed the moving block bootstrap method for spatial data, in which observations are divided into several moving blocks and resampling is done from them. Since, in this method, the presence of boundary observations in the resampling blocks have less selection chance than the other observations, therefore, the estimator of the precision measures would be biased. In this paper, revising the moving block bootstrap method, the separate block bootstrap method was presented for estimating the precision measures of the variogram parameters estimator and spatial prediction. Then its usage was illustrated in an applied example.

Today, many different methods are applied for the correct use of foods and to prevent their deterioration. Ensuring healthy conditions for people in food consumption and consumption of healthy foods is very important for human welfare. In this study, food spoilage, the factors that cause food spoilage, its effects on a global basis, food transport systems (cold chain) and measures that prevent or delay food spoilage are discussed.

Introduction: In the current research, it has been tried to qualitatively study all kinds of policies and measures necessary for alignment between teacher preparation programs and democratic social education competencies under the model of teacher education curricula, which include: direct (official) curriculum, Indirect curriculum, informal curriculum (implicit) and unstructured curriculum (hidden) should be identified in the educational system. Method: Qualitative approach and phenomenological method were used in this research. The field of research is Farhangian University of Hormozgan and the participants are  13  lecturers of this university. The sampling method is a combination of convenience and snowball sampling. The research tool was a semi-structured interview. The information was analyzed using thematic analysis method and then using MAXQDA software... Result: The information was analyzed using the theme analysis method and then using MAXQDA software in the form of 2  overarching themes, 8 organizing themes and 25  basic themes. The results of this research showed the basic policies and measures for teacher preparation programs, in the form of two components, strategies and solutions of teacher training curricula, separated by curricula (formal, informal, informal, unstructured curriculum) and with the goal of preparing The formation of teachers has been identified in the educational system to realize the competencies of democratic social education. Conclusion: Therefore, examining the opportunities, facilities, and resources available to achieve these actions should be on the agenda of decision makers and educational planners. It is necessary to pay special attention to the strategies and solutions of teacher training curricula.