Lanthanum analyses compared

He(I) photoelectron spectra of lanthanum tris-yS -diketonate complexes have been studied and the spectra interpreted on the basis of quantum chemical calculations of ground and ionized states by X -DV and ab initio methods [54]. The comparative analysis of the photoelectron spectra of Sc, and Lu tris-acetylacetonates showed that substitution of one oxygen atom by NH group shifts the two pairs of n and n orbitals to a different extent. The IE (ionization energy) values for (e) and 7T3 (ai) orbitals decreased by 0.8-1.0 eV. The n and n+ molecular orbital two pair bands showed a weak shift of 0.1 eV or less. 

We compared fuzzy principal component analysis (FPCA) to classical PCA methods to characterize lanthanum, the 14 lanthanides, and the other... 

Hutchison and Laville 2008 Mehrotra, Martin et al. 2008). Another advantage of lanthanum carbonate over calcium-based drugs is that rather than increasing the risk of hypercalcaemia and cardiovascular calcification, lanthanum carbonate actually prevents arterial calcification (in animal experiments) (Neven, Dams et al. 2009). Nevertheless, a recent meta-analysis of published clinical trials (Navaneethan, Palmer et al. 2009) concluded that there are as yet there are insufficient data to establish the comparative superiority of non-calcium-binding agents, such as lanthanum carbonate, over calcium-containing phosphate binders for such important patient-level outcomes as all-cause mortality and cardiovascular end points. 

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