introduction: the aim of this study was to evaluate the effect of different mixing techniques on the ph and solubility of mineral trioxide aggregate (mta) and calcium-enriched mixture (cem). methods and materials: five samples were prepared from each biomaterial with different mixing techniques including hand-, amalgamator- or ultrasonic-mixing and were then placed in pre-weighted plastic tubes...

background: addition of disinfectant to irreversible hydrocolloid impression materials can eliminate the disinfection step to avoid dimensional changes associated with it. the aim of the present study was to evaluate the effect of various disinfectant mixing liquids on the properties of commercially available irreversible hydrocolloid impression materials. materials and methods: four commercial...

Let $G$ be a connected semisimple Lie group with finite centre, and let $M= \Gamma \backslash G$ compact homogeneous manifold. Under spectral gap assumption, we show that smooth time-changes of any unipotent flow on $M$ have polynomial decay correlations. Our result applies also in the case where is volume, non-compact quotient under some additional assumptions generator time-change. This gener...

We provide quantitative upper bounds on the total variation mixing time of Markov chain corresponding to unadjusted Hamiltonian Monte Carlo (uHMC) algorithm. For two general classes models and fixed discretization step size h, is shown depend only logarithmically dimension. Moreover, we distance between invariant measure uHMC true target measure. As a consequence, show that an ε-accurate approx...