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Mostrando ítems 531-540 de 2083
Riesgos y salud laboral de los trabajadores del hospital pablo Arturo Suarez de la ciudad de quito, propuesta de un sistema de control de riesgos biológicos.
(Ecuador: Latacunga: Universidad Técnica de Cotopaxi (UTC)., 2020)
Caracterización estructural de liposomas y su interacción con moléculas afifílicas de interés farmacológico
(2017-01-01)
Esta tesis se focalizó en la caracterización estructural de liposomas conteniendo componentes de interés biológico como colesterol y la ceramida y su interacción con moléculas anfifílicas de interés farmacológico, como lo ...
Enhancement of photoacoustic detection of inhomogeneities in polymers
(Instituto de Física de Líquidos y Sistemas Biológicos, 2013-06)
We report a series of experiments on laser pulsed photoacoustic excitationin turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system ...
Observation of the two-way shape memory effect in an atomistic model of martensitic transformation
(Instituto de Fisica de Liquidos y Sistemas Biologicos, 2017-03)
We study a system of classical particles in two dimensions interacting through an isotropic pair potential that displays a martensitic phase transition between a triangular and a rhomboidal structure upon the change of a ...
Influence of bottleneck lengths and position on simulated pedestrian egress
(Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos, 2017-06)
In this paper, the problem of pedestrian egress under different geometries is studied by means of two numerical models. The length of the bottleneck after the exit and the distance of the exit to the lateral wall of a ...
Nonlinearity arising from noncooperative transcription factor binding enhances negative feedback and promotes genetic oscillations
(Instituto de Física de Líquidos y Sistemas Biológicos, 2014-12)
We study the effects of multiple binding sites in the promoter of a genetic oscillator. We evaluate the regulatory function of a promoter with multiple binding sites in the absence of cooperative binding, and consider ...
A neuronal device for the control of multi-step computations
(Instituto de Física de Líquidos y Sistemas Biológicos, 2013-07-09)
We describe the operation of a neuronal device which embodies the computational principles of the `paper-and-pencil' machine envisioned by Alan Turing. The network is based on principles of cortical organization. We develop ...
Ergodic-nonergodic transition in tapped granular systems: The role of persistent contacts
(Instituto de Física de Líquidos y Sistemas Biológicos, 2016-01)
Static granular packs have been studied in the last three decades in the frame of a modified equilibrium statistical mechanics that assumes ergodicity as a basic postulate. The canonical example on which this framework is ...
Photoionization of water molecules by high energy photons
(Instituto de Fisica de Liquidos y Sistemas Biologicos, 2017-06)
We theoretically study the photoionization of water molecules by high energy photon impact. We develop a model in which the final state wave function is given by a Coulomb continuum wave function with effective charges and ...