Introduction: The purpose of this study was to characterize functional impairments and human factor considerations that affect perceptions preferences for head-mounted display (HMD) technology adults with low vision chronic eye disease. Methods: Through a convergent mixed-methods design, participants visual (age-related macular degeneration, diabetic retinopathy, glaucoma, or retinitis pigmento...

This article provides researchers with knowledge of how to design a high quality mixed methods research study. To design a mixed study, researchers must understand and carefully consider each of the dimensions of mixed methods design, and always keep an eye on the issue of validity. We explain the seven major design dimensions: purpose, theoretical drive, timing (simultaneity and dependency), p...

This paper proposed a new approach of controller design. By using model matching method we design a PID controller for higher order system. A higher order model is reduced by Pade approximation and mixed method, then design a controller for reduced order model. We take a comparatively study between close loop response of higher order system and reduced order system. The model order reduction an...

BACKGROUND The aim of this study was to assess the prevalence, perpetrators and factors associated with workplace violence against nurses in public secondary health care facilities from two health regions in the Gambia. METHODS Data was collected from 219 nurses using self-administered questionnaire and 35 face-to-face interviews. The data collection was conducted between July and September 2...