in this research, we investigate the influence of profit management on the long-term performance of ipos in tehran stock exchange. the ipos in 1378 to 1384 are used as our sample and their long-term return in a three-year period after the ipo are calculated. we start calculating the return from the first day after the month in which the financial statement of ipo is published. discretionary cur...

during 2010-2011, real-time pcr procedure was used to detecting fmdv rna on 147 epithelium samples from the field. in this survey, for real-time pcr from 3d gene segment as conserve region selected for tracking all of seven serotypes fmdv. the assay detected the viral rna in all serotypes of fmdv. the rrt-pcr specifically detected fmd virus in sample with greater sensitivity than our convention...

A good estimate of the design effect is critical for calculating the most efficient sample size for cluster surveys. We reviewed the design effects for seven nutrition and health outcomes from nine population-based cluster surveys conducted in emergency settings. Most of the design effects for outcomes in children, and one-half of the design effects for crude mortality, were below two. A reasse...

The actual multimodal process data usually exhibit non-linear time correlation and non-Gaussian distribution accompanied by new modes. Existing fault diagnosis methods have difficulty adapting to the complex nature of modalities are unable train models based on small samples. Therefore, this paper proposes a modal method meta-learning (ML) neural architecture search (NAS), MetaNAS. Specifically...

BACKGROUND Cluster-randomized trials, in which health interventions are allocated randomly to intact clusters or communities rather than to individual subjects, are increasingly being used to evaluate disease control strategies both in industrialized and in developing countries. Sample size computations for such trials need to take into account between-cluster variation, but field epidemiologis...

downs syndrome (ds) is one of the most common chromosomal abnormalities (1 in 700-1000 births) and one of the main causes of mental retardation. therefore, diagnosis and prevention of live-born children with ds is a principle priority for the iranian ministry of health. this study was performed to evaluate the application of real-time qpcr technique for rapid diagnosis of ds. about 15-20 millil...