Worldwide, many farmers use irrigation systems for their crops. They usually use highpower centrifugal or axial pumps powered by electrical energy or combustion engines. This technique provides increased productivity, in ...

The Na+/ K+-ATPase restores sodium (Na+) and potassium (K+) electrochemical gradients dissipated by action potentials and ion-coupled transport processes. As ions are transported, they become transiently trapped between ...

Disc pumps are used for difficult pumping applications, such as, pumping of high suspension solids and abrasives, viscous fluids, air entrained and shear sensitive fluids. The pumping mechanism, based on the boundary ...

The aim of this study was to develop in vitro azithromycin (AZM)-resistant mutants of Escherichia coli and Shigella spp. in the presence of Phe-Arg β-naphthylamide (PAβN) and to observe which AZM resistance mechanisms other ...

The present work analyzes the technical feasibility of solar-assisted heat pumps for swimming pool heating in South Brazil. The methodology is based on computer simulations for four configurations of heating systems for ...

A feasibility study was conducted to determine the use of polyphthalamide/glass-fiber and polyphthalamide/glass-fiber/polytetrafluoroethylene-based composites as substitutes for aluminum and steel, respectively, in the ...

Abstract Background Carbapenems resistance in Enterobacter spp. has increased in the last decade, few studies, however, described the mechanisms of resistance in this ...