R. Galindo

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The purpose of this work is to report a clinical case of removal of a fractured endodontic instrument in the root canal of a maxillary molar, when part of this fragment extended through the apical foramen. In the present case, many methods were tried without satisfactory results. Therefore, an alternative device utilizing cyanoacrylate adhesive was tested(More)
Linear Time Invariant (LTI) Multi-Input Multi-Output (MIMO) stable systems modeled in bond graph and described by their junction structures, are considered. Junction structures for the sensitivity and complementary sensitivity functions, are proposed. These structures are function of the free parameter of the family of stabilizing compensators, and allow to(More)
A physical IvIulti-Input-h/lulti-Output (AiIMO) Linear Time Invariant (LTI) system formed by a variety of energy types and modelled graphically in Bond Graph is considered. A single direct graphical form to represent t h s physical system is presented. This modified Coates graph is based on its Bond Graph. It allows to propose a direct graphical procedure(More)
ii ABSTRACT The current study investigates the survival and neuritogenic effects of various neurotrophic factors on rat spiral ganglion neurons (SGNs) in vitro. In particular, ciliary neurotrophic factor (CNTF), glial derived neurotrophic factor (GDNF), neurotrophin-3 (NT-3) and neurturin (NRTN) were assayed on postnatal day 4-6 SGNs. CNTF and NT-3 produced(More)
Explicit formulas of the Parametrization of All one parameter Stabilizing Controllers (PASC) for square systems, are presented. Multi Input Multi Output (MIMO), strictly proper, lumped and Linear Time Invariant (LTI) systems with stabilizable and detectable realizations are considered. It is assumed that the state dimension is even, the input dimension is(More)
A comparison between discrete-time techniques (Tustin's method, forward and backward Euler's rules) for explicit formulas of the parametrization of one parameter stabilizing controllers for square systems and mixed sensitivity problem are given. Multi Input Multi Output (MIMO), strictly proper, lumped and Linear Time Invariant (LTI) systems with a(More)
This paper presents an alternative methodology to solve the quadratic stabilization problem via parameter dependent state feedback. Sufficient conditions for Quadratic Stability by parameter dependent state feedback are given, the LPV control law is gotten by a parameter dependent interpolation of LTI controllers (one for each vertex) solving the regulation(More)