objectives: to determine the behavioral pattern of golestan university of medical science (gums) students as pedestrian and car occupants in relation to traffic law based on health belief model. methods: this cross-sectional study was performed during 2012 in gums. a total of 370 students of gums were selected using multi-stage sampling method including stratified and random sampling. data were...

Let C be an isolated plane curve singularity, and (C, l) be a decorated curve. In this article we compare the equisingular deformations of C and the sandwiched singularity X(C, l). We will prove that for l ≫ 0 the functor of equisingular deformations of C and (C, l) are equivalent. From this we deduce a proof of a formula for the dimension of the equisingular stratum. Furthermore we will show h...

In this study, we propose a two stage randomized response model. Improved unbiased estimators of the mean number of persons possessing a rare sensitive attribute under two different situations are proposed. The proposed estimators are evaluated using a relative efficiency comparison. It is shown that our estimators are efficient as compared to existing estimators when the parameter of rare unre...

Through the monitoring network for cultivated land quality in county area, distribution and changing trend of the quality should be reflected. Besides, the quality of non-sampled locations should also be estimated with the data of sampling points. Due to the correlation among spatial samples, traditional methods such as simple random sampling, stratified sampling and systematic sampling are ine...

Can a supercompact cardinal κ be Laver indestructible when there is a level-by-level agreement between strong compactness and supercompactness? In this article, we show that if there is a sufficiently large cardinal above κ, then no, it cannot. Conversely, if one weakens the requirement either by demanding less indestructibility, such as requiring only indestructibility by stratified posets, or...

in order to investigate and consider the feasibility of the establishment of knowledge management at payam nour universities of golestan province elicited from reviewing the research literature, the researchers  endeavored to identify the factors affecting  the establishment of  knowledge management  and the knowledge management components, and then to consider the way of their influence as wel...