Informe de la gestión y estrategias de la empresa Chester (industria c60202) en el simulador de negocios Capsim

El presente documento muestra el análisis y evolución de la toma de decisiones de la empresa Chester, que forma parte de la industria de los sensores, dentro de un ambiente de simulación en la plataforma Capsim. Se plantean los objetivos estratégicos, los principales indicadores de desempeño monitoreados a través de la herramienta de cuadro de mando integral y la definición de la estrategia que se siguió para cumplir con los objetivos

Y-stent-assisted coil embolization of anterior circulation aneurysms using two solitaire AB devices: a single enter experience

Wide-neck intracranial aneurysms remain a challenge to endovascular treatment. We describe our experience in repairing wide-neck aneurysms of the anterior circulation located at arterial branch points using coil embolization assisted by Y-stenting using two Solitaire® stents. Six wide-neck intracranial aneurysms located on the middle cerebral artery bifurcation 3, pericallosal artery 1, and anterior communicating artery 2 were repaired by Y-stent-assisted coil embolization using two Solitaire® stents. Four cases were incidental findings of aneurysm and two cases were previously treated ruptured aneurysms that had undergone recanalization. All the cases were successfully treated without complications. Follow-up by digital subtraction angiography and magnetic resonance angiography at six months showed the stents to be patent with no recanalization of the aneurysm sacs. Repairing wide-neck aneurysms of the anterior circulation by Y-stent-assisted coil embolization using two Solitaire® stents is a simple and safe method of treating complex aneurysms. While the results are promising, larger series with longer term follow-ups are needed to corroborate that this treatment method is superior to other technique

“Obtención y estudio del compuesto sólido penicilina (FL-1039)-CU (II)”

The preparation and properties of the penicillin-Copper (II) chelate are described. From the results of elemental analysis, copper (II) determination, spectrophotometric measurements and ATD, TG analysis, the site of complexation of penicillin and metal are discussed.Se aisla al estado sólido un quelato de la penicilina (FL-1039) con el Cu(II). A partir de los resultados del análisis de C, H, N Y Cu(II), estudio espectrofométrico, análisis A TD Y TG se sugiere la fórmula empírica y se discuten los posibles lugares de unión entre el ligando y el metal

Evolutionary q-Gaussian radial basis function neural networks for multiclassification

This paper proposes a radial basis function neural network (RBFNN), called the q-Gaussian RBFNN, that reproduces different radial basis functions (RBFs) by means of a real parameter q. The architecture, weights and node topology are learnt through a hybrid algorithm (HA). In order to test the overall performance, an experimental study with sixteen data sets taken from the UCI repository is presented. The q-Gaussian RBFNN was compared to RBFNNs with Gaussian, Cauchy and inverse multiquadratic RBFs in the hidden layer and to other probabilistic classifiers, including different RBFNN design methods, support vector machines (SVMs), a sparse classifier (sparse multinomial logistic regression, SMLR) and a non-sparse classifier (regularized multinomial logistic regression, RMLR). The results show that the q-Gaussian model can be considered very competitive with the other classification methods. © 2011 Elsevier Ltd

Constantes Estequiométricas de formación de complejos feniletanolamina – Cu(II)

A partir de medidas de absorbancia, se han determinado las constantes aparentes de formación de los complejos de cuatro aminas simpaticomiméticas con Cu(II). Los valores obtenidos han sido de 5.7 para el complejo α-[(Metilamino )metil]-3-hidroxibencilmetanol; 7,2 para el de α-[ (Etilamino )metil]-3-hidroxibencilmetanol; 16,9 para el de α-[(Metilamino)]-4-hidroxibencilmetanol y 6.6 para el de α-[(Butilamino)metil]-4-hidroxibencilmetanol.Stequiometric formation constants of complex L2Cu, formed between Cu(I1) and four simpatomimetic amines, were measured by spectrophotometric technique, Values of K= 5,7 for α-[(Methylamino)rnethyl]-3-hydroxybenzylmethanol - Cu(I1); 7,2 for α-[(Ethylamino )methyl]-3-hydroxybenzylaIcohol - Cu(I1); 16,9 for <x-[(Methylamino)]-4-hydroxybenzylaIcohol - Cu(I1) and 6.6 for <x-[(Butylamino)methyl]-4-hydroxybenzylaIcohol - Cu(II), was obtained

Obtención y estudio del compuesto solido penicilina

Se aisla al estado sólido un quelato de la penicilina (FL-1039) con el Cu(II). A partir de los resultados del análisis de C, H, N Y Cu(II), estudio espectrofométrico, análisis ATD Y TG se sugiere la fórmula empírica y se discuten los posibles lugares de unión entre el ligando y el metal.The preparation and properties of the penicillin-Copper (II) chelate are described. From the results of elemental analysis, copper (II) determination, spectrophotometric measurements and ATD, TG analysis, the site of complexation of penicillin and metal are discusse

Constantes Estequiométricas de formación de complejos feniletanolamina – Cu(II)

A partir de medidas de absorbancia, se han determinado las constantes aparentes de formación de los complejos de cuatro aminas simpaticomiméticas con Cu(II). Los valores obtenidos han sido de 5.7 para el complejo α-[(Metilamino )metil]-3-hidroxibencilmetanol; 7,2 para el de α-[ (Etilamino )metil]-3-hidroxibencilmetanol; 16,9 para el de α-[(Metilamino)]-4-hidroxibencilmetanol y 6.6 para el de α-[(Butilamino)metil]-4-hidroxibencilmetanol