In the present work, the effect of Ca(NO3)2.4H2O and (NH4)2HPO4 primary solutions as the beginning materials in synthesis of a calcium phosphate phase, was examined. So, we investigated the wet chemical reactions in solution at different temperatures by a hydrothermal condition aimed at hydroxyapatite (Ca10(PO<su...

Esterification reactions of some polyols and diols were investigated in the presence of SnO2 and nano-SnO2 and the results were compared with the catalyst-free conditions. High conversions were obtained for most of the reactions in the presence of SnO2 and nano-SnO2 which shows the high catalytic activity of SnO2 and nano-SnO2</sub...

In recent years, sub-band speech recognition has been found useful in robust speech recognition, especially for speech signals contaminated by band-limited noise. In sub-band speech recognition, full band speech is divided into several frequency sub-bands and then sub-band feature vectors or their generated likelihoods by corresponding sub-band recognizers are combined to give the result of rec...

Briefly, based on the previous evidence and the results of the present study, it seems that infection with HTLV-1 by destruction of sub-layers of arteries, especially the intima layer, leads to disruption of the integrity of sub-layers of arteries and through various mechanisms, causing the sub-layer’s destruction, increasing the intima-media thickness, changing the lipid profile, and developme...