background: alcohol use disorders (auds) has been recently prioritized as a health problem in iran. the alcohol use disorders identification test (audit) is an easy-to-use diagnostic tool for excessive drinking. this study was designed to assess the validity and reliability of the persian version of audit questionnaire. methods: participants were 70 individuals with aud (study group) and 70 non...

This review introduces some commonly used methods for assessing the performance of a diagnostic test. The sensitivity, specificity and likelihood ratio of a test are discussed. The uses of the receiver operating characteristic curve and the area under the curve are explained.

Through the pseudo-static test on the steel truss coupling beams with buckling-restrained brace, the bearing capacity, deformation capacity, hysteresis curve, skeleton curve, ductility, Energy Dissipation and stiffness degradation of such coupling beam are understood. The test results show that the steel truss coupling beams with buckling-restrained brace is characterized by bigger bearing capa...

In this research, 272977 test day records collected from 659 herds during years 2001 to 2011 by the Iranian animal breeding center were used. In the first section the ability of different models to predict daily milk yield from alternative milk recording was tested. The result showed that a complex model including noon milking time plus the effect of lactation curve of Ali and Schaeffer functio...

In this paper, we derive simple sign-based point-optimal test in linearand nonlinear regression models. The test is exact, distribution free, robustagainst heteroskedasticity of unknown form, and it may be inverted to obtaincon…dence regions for the vector of unknown parameters.Because our optimal test depends on the alternative hypothesis, we pro-pose an adaptive approa...

PURPOSE To determine if the curve length, curve form, and location of the lower-end vertebra can identify the type of scoliosis. METHODS Standing posteroanterior and lateral radiographs of 78 women and 27 men with scoliosis aged 8 to 32 years were retrospectively analysed. Parameters measured were (1) the curve length (the number of vertebrae in the main curve), (2) the curve form (C-form, in...