The paper reports on the piezoelectric performance, electromechanical coupling and related energy-harvesting figures of merit three forms 1–2–2 composites based domain-engineered single crystals. effect single-crystal properties elastic laminar polymer matrix appropriate composite is studied. main active components studied are [0 0 1]-poled perovskite-type crystals with chemical compositions: 0...

this study was aimed to investigate the possibility of using magnesium hydroxide as an alternative for sodium hydroxide in deinking of newsprint and magazine mixture. the old newsprint and magazine mixture (onp/omg -70/30) was treated by magnesium hydroxide at three levels: 1, 1.5 and 2 percent (based on oven dried pulp weight), for 20 min. optical and mechanical properties and effluent cod loa...

The effects of the amounts of lubricants (magnesium stearate 0-5% and talc 0-3%) and changes in compaction rate and tablet porosity on the mechanism of drug release from high drug-load controlled-release theophylline tablets have been examined. Drug release was satisfactorily described by a surface-erosion model that takes into account the geometry of the tablet, differential radial and axial e...

In spite of vast improvements in urinary stone treatment (ESWL, PNL, ureteroscopy, etc.), metabolic workup concerning the existence of stone forming risk factors are of great importance and can lead to control and even prevention of urinary stone formation in these patients. In this analytical case-control study performed on 266 persons [110 normal persons (56 males and 54 females), 76 pat...

in spite of vast improvements in urinary stone treatment (eswl, pnl, ureteroscopy, etc.), metabolic workup concerning the existence of stone forming risk factors are of great importance and can lead to control and even prevention of urinary stone formation in these patients. in this analytical case-control study performed on 266 persons [110 normal persons (56 males and 54 females), 76 patients...

Magnesium chelatase is the first unique enzyme of the chlorophyll biosynthetic pathway. It is composed of three gene products of which the largest is 150 kD. This protein was recently identified as an abscisic acid receptor in Arabidopsis (Arabidopsis thaliana). We have evaluated whether the barley (Hordeum vulgare) magnesium chelatase large subunit, XanF, could be a receptor for the phytohormo...

BACKGROUND Serum magnesium is inversely associated to coronary artery calcification (CAC) in patients with chronic kidney disease. There is little information on this association in a general healthy population. OBJECTIVE The aim of this study was to examine the cross-sectional association of serum magnesium levels with CAC. METHODS We included 1276 Mexican-mestizo subjects (50 % women), ag...