The authors apply the chemical speciation model WHAM/Model VII to investigate the distribution of metal species of Fe(III) and the divalent cations of Ni, Cu, Zn, Cd, Hg, and Pb, in the water column of estuaries and coastal areas. The authors compare, for the same locations, measured and modeled free ion and organically bound metal concentrations. The modeled free ion calculations show varying ...

In this paper, a multitechnique experimental and numerical modeling methodology was used to show that mineral content had a significant effect on both nanomechanical properties and ultrastructural deformation mechanisms of samples derived from adult bovine tibial bone. Partial and complete demineralization was carried out using phosphoric and ethylenediamine tetraacetic acid treatments to produ...

OBJECTIVES This study was undertaken to determine the distribution of ABO/RhD (rhesus D antigen) blood phenotypes, prevalence of anti-D alloantibodies, and the risk factors for alloimmunization among pregnant women in Kasese District, Western Uganda. MATERIALS AND METHODS Ethylenediamine tetraacetic acid-containing plasma samples and serum samples were taken from pregnant women attending the ...

BACKGROUND The recommended approach to screening for primary aldosteronism (PA) in at-risk populations is to determine the ratio of aldosterone concentration (serum (SAC)/plasma (PAC)) to renin measured in plasma as activity (PRA) or concentration (DRC). However, lack of assay standardisation mandates the need for method-specific decision thresholds and clinical validation in the local populati...

To separate both copper and 2,2',2'',2'''-(ethane-1,2-diyldinitrilo)tetraacetic acid (EDTA) from the waste electroless plating solution by solvent extraction, liquid–liquid equilibria of copper-EDTA complex unbound EDTA ion were experimentally measured. An organic tri-n-octylmethylammonium chloride (TOMACl) was used as solvent. The kerosene TOMACl could extract complexes ions model wastewater. ...

Lowering of extracellular Ca2+-concentration from 14 X 10(-3) M to ca. 10(-6) M (using 1 mM ethyleneglycol bis (beta-aminoethylether)-N,N'-tetraacetic acid (EGTA)) results in weaker light adaptation by a 2 s light exposure and faster dark adaptation (half time 45 +/- 1%) of crayfish visual cells.

Corneal epithelium removed from underlying extracellular matrix (ECM) extends numerous cytoplasmic processes (blebs) from the formerly smooth basal surface. If blebbing epithelia are grown on collagen gels or lens capsules in vitro, the basal surface flattens and takes on the smooth contour typical of epithelium in contact with basal lamina in situ. This study examines the effect of soluble ext...

1. Ethylenediamine tetraacetic acid (EDTA) in low concentrations imitates all the known effects of the relaxation factor ("Marsh factor"). In extracted muscle fibers which have contracted in a solution containing adenosinetriphosphate (ATP), the addition of EBTA causes relaxation, the subsequent addition of CaCl(2), contraction. 2. In fibers which have been briefly immersed in 5 MM EDTA, ATP ca...