Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to accurately represent data populations.

Introduction: Obstetric referrals remain a public health challenge. Objective: To evaluate the prevalence of obstetric referrals in the DASSA-Glazoué health district. M ...

Abstract: Two-dimensional beam scanning is crucial for microwave imaging. For conventional frequency-scanning antennas, such as leaky-wave antennas, their beams typically scan along only one dimension ...