The utilization of recycled aggregate can significantly mitigate the extraction of natural sand and gravel.However, the practical application of recycled aggregate in engineering is impeded ACCESSORYHATSOTHER by its inherent characteristics, encompassing high water absorption, high crushing, and low apparent density.This study employed a soaking an
Reforming old-age pension systems in developing countries: lessons from Latin America
ABSTRACT Latin American countries, pioneered by Chile, have launched bold old age pension reforms.While these reforms may address issues of financial sustainability of the pension systems, their most valuable contribution is related to political economy aspects as they Syd Hill Barkley Stock Saddle with Swinging Fender avoid perverse redistribution
In vitro evaluation of force-expansion characteristics in a newly designed orthodontic expansion screw compared to conventional screws
Objective : Expansion screws like Hyrax, Haas and other types, produce heavy interrupted forces which are unfavorable for dental movement and could be harmful to the tooth and periodontium.The other disadvantage of these screws is the need for patient cooperation for their regular activation.The purpose of this study was to design a screw and compa