This study investigates an internal erosion site along the Crawford County Levee System in Arkansas, USA using electrical resistivity tomography (ERT) lines, complemented by multichannel analysis of surface waves (MASW) and capacitively coupled resistivity (CCR) surveys. The goal of the testing was to identify internal erosion areas and establish “best recommend practices” for future investigations of internal erosion. For the...

Background The purpose of the study. Along with research on development of more efficient gene delivery systems, it is necessary to search on stabilization processes to extend their active life span. Chitosan is a nontoxic, biocompatible and available gene delivery carrier. The aim of this study was to assess the ability of this polymer to preserve transfection efficiency during spray-drying and a modified freeze-drying proces...

Background Along with research on development of more efficient gene delivery systems, it is necessary to search on stabilization processes to extend their active life span. Chitosan is a nontoxic, biocompatible and available gene delivery carrier. The aim of this study was to assess the ability of this polymer to preserve transfection efficiency during spray-drying and a modified freeze-drying process in the presence of commo...