background: control of the phosphorus in hemodialysis patients is very important and can be done in many ways. the purpose of the study was to compare the effects of nicotinic acid and lanthanum carbonate on hyperphosphatemia in the hemodialysis patients. materials and methods: this double-blind randomized clinical trial was done in imam hossein hospital (shahroud, iran) in 2014. the participan...

Superconducting films of (Tl0.5Pb0.5)(Sr0.95Ba0.05)2(Ca0.8Gd0.2)Cu2Oz 1212, approximately 3 μm in thickness, were fabricated on single-crystalline lanthanum aluminate. The films were practically phase pure and showed excellent in-plane and out-of-plane texture. Critical temperatures of up to 96 K were recorded. Critical current densities of the order of 40 MA m−2 at 77 K in self-field were meas...

Single-crystal torque magnetometry performed on weakly-coupled polynuclear systems provides access to a complete description of single-site anisotropy tensors. Variable-temperature, variable-field torque magnetometry was used to investigate triiron(III) complex [Fe3La(tea)2(dpm)6] (Fe3La), a lanthanum(III)-centred variant of tetrairon(III) single molecule magnets (Fe4) (H3tea = triethanolamine,...

A new europium(III) membrane luminescent sensor based on a new tridentate bis(phosphinic acid)phosphine oxide (3) system has been developed. The synthesis of this new ligand is described and its full characterization by NMR, IR and elemental analyses is provided. The luminescent complex formed between europium(III) chloride and ligand 3 was evaluated in solution, observing that its spectroscopi...

In this study, graphene oxide (GO) was prepared using the improved Hummers’ method, and GO carboxylated modified into hydroxylated (GOH). Diatomaceous earth (DE), which exhibits stable chemical properties, a large specific surface area, high porosity, as well chitosan/magnetic chitosan, loaded by solution blending. Subsequently, oxide/diatomite/chitosan (GOH/DCS) oxide/diatomite/magnetic chitos...

Lanthanide complexes of a hexaaza macrocyclic ligand containing acetohydrazide pendants (L) have been synthesised (Ln = La-Er, except Pm), and structural studies have been carried out both in the solid state and in aqueous solution. Attempts to isolate the complexes of the heaviest Ln(iii) ions (Ln = Tm-Lu) were unsuccessful. The crystal structures of the ligand and its lanthanum complex have b...