The effect of organomodified montmorillonite (MMT) content and mixing conditions on the mechanical properties, structure, morphology a chloroprene rubber was investigated. Nanoparticles were mechanically mixed with plasticizer, followed by ultrasonic homogenization before compounding all ingredients mixtures in two-roll mills. Mechanical tests carried out samples prepared three sonication ampli...

PURPOSE The evolution of sterile compounding in the context of hospital patient care, the evolution of related technology, past incidents of morbidity and mortality associated with preparations compounded in various settings, and efforts over the years to improve compounding practices are reviewed. SUMMARY Tightened United States Pharmacopeial Convention standards (since 2004) for sterile com...

Abstract Silica is the rubber industry’s most essential and cost-effective reinforcing filler after carbon black. The silica reinforcement mechanism with a non-polar elastomer complicated by presence of polar functional groups on surface. This nature causes filler-to-filler interaction forming hydrogen bonds. Therefore, sizeable non-dispersed clusters remain in matrix. To avoid these strong fil...

Mechanical characterizations of natural rubber filled with carbon-based nanomaterials were extensively studied in tensile and tear modes whereas fewer attempts have been conducted on a dynamic shear condition using double-bonded test piece. This is importance since rubbers are widely used as flexible membranes for wave energy harvesting devices. Therefore, this study was aimed to explore the mi...

Many college students have difficulties in understanding and making connections among the main concepts of statistics. Compounding the difficulties is the misconception of a variety of statistical concepts that students hold even before taking any statistics course. It is, thus, crucial to investigate how the understanding of statistical concepts is constructed and at which stage students start...

BACKGROUND Poor compounding practices by the New England Compounding Center resulted in the 2012-2013 fungal infections outbreak. Contaminated injectable methylprednisolone led to the diagnosis of fungal infections in 751 patients and 64 deaths. In the United States, pharmacy compounding has traditionally been regulated by state boards of pharmacy rather than the FDA. To minimize safety risks r...