Tricresyl phosphate (TCP) forms protective films on moving mechanical components through thermally driven decomposition and interactions with the ferrous surfaces of components. These reactions are hidden from view in interfaces, but known to be sensitive both surface material isomeric form TCP. Here, temperature-programmed reaction spectroscopy (TPRS) gas chromatography-mass (GC-MS) complement...

Objective- The aim of this study was to evaluate possible beneficial effect of tricalcium phosphate/collagen (TCP/collagene) nanocomposite scaffold on bone healing in rabbits using biochemical assessmentsDesign- Experimental studyAnimals- Twelve healthy male white New Zealand rabbitsProcedures- The rabbits wer...

We describe in this paper a method for generating queries from both user’s profile description and users’s community of interest description. These queries are used for a monitoring task, so that those documents which are not already known by the user are retrieved. This method was implemented and integrated to the prototype of GALILEI, an open source Internet/Intranet project developed for GNU...

We discuss quantum deformations of Lie algebra as described by the noncoassociative modification of its coalgebra structure. We consider for simplicity the quantum D = 1 Galilei algebra with four generators: energy H, boost B, momentum P and central generator M (mass generator). We describe the nonprimitive coproducts for H and B and show that their noncocommutative and noncoassociative structu...

We reinvestigate Bargmann's superselection rule for the overall mass of n particles in ordinary quantum mechanics with Galilei invariant interaction potential. We point out that in order for mass to de ne a superselection rule it should be considered as a dynamical variable. We present a minimal extension of the original dynamics in which mass it treated as dynamical variable. Here the classica...

The present work investigates the crystallization and phase evolution of amorphous calcium phosphate (ACP) partially substituted with smaller (Mg2+, Zn2+) larger (Sr2+, Ba2+) divalent ions in range from 1 to 10 mol % (M/P = 1.5:1). It has been demonstrated that ACP tricalcium (TCP) subsequent transformations between TCP polymorphs strongly depend on nature concentration substituents matrix. Two...