The interest in electrocrystallization of calcium phosphates (CaP) in general, and of hydroxyapatite (HAp) specifically, results from the promising industrial benefits, unique microstructures, and properties of the deposits produced by this process, and the possible similarity to bone mineralization in vivo. In this paper, our work on electrocrystallization of HAp and octacalcium phosphate (OCP...

Some new regularities found in the pseudoscalar meson octet are reported. They invite to reconsider models where elementary fermions and composite QCD open strings can be grouped in common supermultiplets.

s of PH. D. Theses Title: The Elaboration of Simulation Systems in sustainable agriculture Author: Dorian Drucioc Promotor: Dr.h. , Prof. Valentin Osadcii Date of defence: September 16, 1999 Institution: Free International University of Moldova

Conclusions: Crystals forming mineral blocks of mostly compact matter are nucleated on organic substrates, with their growth controlled by the diffusion of building units through the virtually stagnant layer of interstitial fluid wetting the deposit surface. Preferentially formed precursors of hydroxyapatite, dicalcium, octacalcium and/or amorphous calcium phosphate, are in later stages of depo...

The deenition of a class C of functions is predicative if it doesn't use a class containing C; and is decidable if membershipto C can be decided syntactically, from the construction of its elements. Decidable and predicative characterizations of Poly-time functions are known. We present here such a characterization for the following classes of languages: P, p n ; p n , PH and PSPACE. It is obta...

Electrocrystallization of hydroxyapatite (HAp) on titanium was achieved by cathodic polarization in solution containing calcium nitrate and ammonium dihydrogen phosphate. The composition and pH of the bath were found to significantly affect the nature and surface morphology of the deposit. The effect of bath temperature was also studied. X-ray diffraction tests and microscopic inspections confi...