Abstract We present the magnetic, structural and 57 Fe Mossbauer characterization of soils collected from an ancient mercury contaminated city named Huancavelica in Peru. The results indicate that silicates carbonates are main mineralogical constituents samples. In addition, Mössbauer spectra at room temperature reveal, presence two components: a magnetic component related to Fe-oxides (magneti...

lithium is a immunomodulator that can increase immunoglobulins to confront infectious desese. it is also able to increase the production of interleukins, interferon gamma and prostaglandins. we conducted this study to evaluate the correlation between lithium consumption and humoral immunity. blood samples were obtained from 76 patients under lithium treatment. we classified the patients accordi...

I The pharmacokinetics of the lithium ion administered as lithium orotate were studied in rats. Parallel studies were carried out with lithium carbonate and lithium chloride. 2 No differences in the uptake, distribution and excretion of the lithium ion were observed between lithium orotate, lithium carbonate and lithium chloride after single intraperitoneal, subcutaneous or intragastric injecti...

Introduction: Isheyevo, a metal-rich CH/CB-like meteorite, shows whole-rock δ 15 N enrichment up to ~+1500‰ [1]. Bonal et al. discovered rare chondritic clasts in Isheyevo containing mafic silicates, large bulk 15 N enrichments (δ 15 N from +1000 to 1300‰) and µm-sized " hotspots " with δ 15 N approaching +5000‰ [2,3]. The source of these high 15 N enrichments, whether due to molecular cloud, n...

We report here the synthesis and selected properties of various silicate ester derivatives (tetraalkoxysilanes) of the taxanes paclitaxel (PTX) and docetaxel (DTX) [i.e., PTX-OSi(OR)3 and DTX-OSi(OR)3]. Both the hydrophobicity and hydrolytic lability of these silicates can be (independently) controlled by choice of the alkyl group (R). The synthesis, structural characterization, hydrolytic reac...