Santiago Benavides - Academia.edu (original) (raw)
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Papers by Santiago Benavides
Revista Ciencias Pedagógicas e Innovación, Jun 30, 2022
Percepción de los policías ecuatorianos respecto a la formación profesional
The equilibria and stability of self-gravitating liquid masses has been studied and debated for m... more The equilibria and stability of self-gravitating liquid masses has been studied and debated for more than a century by great physicists and mathematicians such as Newton, Maclaurin, Jacobi, Poincaré, Dirichlet, Riemann, and Chandrasekhar, and is still drawing interest from researchers today. Here I present an original approach to formulating the problem in the context of Hamiltonian theory, namely by applying moments of the position and velocity to the constrained Poisson bracket for a fluid. I then study the stability of a certain family of equilibrium ellipsoids with internal flow that depends linearly on the spatial coordinates (Riemann ellipsoids) using this constrained Hamiltonian formulation of the problem. This formulation allows us to use robust stability analysis methods, as well as study the dynamics in a straightforward way. The spectral stability results agree qualitatively with that of Chandrasekhar's, but the parameter value is slightly off, and the nonlinear stability analysis results do not give a definite answer due to the nature of the bifurcation (steady-state). It is still possible to use the Rayleigh-Ritz method to determine whether our system is nonlinearly unstable, but due to time constraints this was not done. I would like to thank Dr. Philip J. Morrison (my advisor) for his incredible generosity and incomparable enthusiasm towards the subject and being a teacher. Without the many hours of group meetings, individual lessons, and discussions over the years that we've had, I would not be half the student I am now and certainly I would not be as curious about the many things that interest me at the moment. I would also like to thank Dr. Norm Lebovitz of the University of Chicago, with whom (along with Dr. Morrison) I began this project in the summer of 2014 at Woods Hole Oceanographic Institution's "Geophysical Fluid Dynamics" program in Woods Hole, MA. Finally, I would like to thank Dr. Irene Gamba for her generosity and being of much help during the process of writing this thesis. Another huge influence was Dr. Alexandros Alexakis, who was one of my first true role models as a teacher, scientist, and person. He took me in as a naïve sophomore who knew nothing about fluid dynamics, or what research was about, and had the patience and generosity to take time out of his day to teach me what he knew. I learned so much in the three life-changing months that I spent in Paris, and it certainly shaped who I am today, academically and personally.
Eufonía : didáctica de la música, 2019
Este articulo muestra el valor del uso de las canciones populares en el proceso de ensenanza y ap... more Este articulo muestra el valor del uso de las canciones populares en el proceso de ensenanza y aprendizaje de una segunda lengua. Aprovechando este potencial didactico, se propone una serie de actividades comunicativas que parten del uso de una cancion para lograr desarrollar habilidades y subhabilidades linguisticas.
Proceedings of the 19th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Prospective and trends in technology and skills for sustainable social development” “Leveraging emerging technologies to construct the future”, 2021
Resumen-Las universidades disponen de diferentes plataformas en línea, que operan independienteme... more Resumen-Las universidades disponen de diferentes plataformas en línea, que operan independientemente según la finalidad de cada una de estas. Entre estos portales web no hay una comunicación directa, para enlazar los datos automáticamente de un portal a otro.
Archivos de Medicina (Manizales), 1969
Introducción: La epilepsia es una de las enfermedades neurológicas más frecuentes; existen múltip... more Introducción: La epilepsia es una de las enfermedades neurológicas más frecuentes; existen múltiples estudios sobre la prevalencia en la población general, con cifras que oscilan entre 1,5 y 57 casos por 1.000 habitantes. Los factores de riesgoasociados a esta patología no se han logrado determinar de forma definitiva. Materiales y métodos: mediante un muestreo por conveniencia realizado a los asistentes a controles neurológicos en la Liga Caldense contra la Epilepsia y los acudientes a consulta neuropediátrica al Hospital Infantil de la Cruz Roja Colombiana - Seccional Caldas, se realizó un estudio descriptivo correlacional a partir de encuestas y revisiónde historias clínicas. Resultados: El 73,3% de los pacientes estaban entre los 0 y 20 años, predominó el género masculino (61,3%). El 83,8% pertenecía a un estrato socioeconómico bajo (I-II); el 69,6% fue producto de un primer o segundo embarazo; un 38,2% tuvo un desarrollo psicomotor anormal y un 39,7% presentó un desarrollo del ...
Rev Chil Nutr, Apr 1, 1998
Sediment transport in rivers near the threshold of grain motion is characterized by rare but larg... more Sediment transport in rivers near the threshold of grain motion is characterized by rare but large transport events. This intermittency makes it difficult to relate average sediment flux to average...
Revista Ciencias Pedagógicas e Innovación, Jun 30, 2022
Percepción de los policías ecuatorianos respecto a la formación profesional
The equilibria and stability of self-gravitating liquid masses has been studied and debated for m... more The equilibria and stability of self-gravitating liquid masses has been studied and debated for more than a century by great physicists and mathematicians such as Newton, Maclaurin, Jacobi, Poincaré, Dirichlet, Riemann, and Chandrasekhar, and is still drawing interest from researchers today. Here I present an original approach to formulating the problem in the context of Hamiltonian theory, namely by applying moments of the position and velocity to the constrained Poisson bracket for a fluid. I then study the stability of a certain family of equilibrium ellipsoids with internal flow that depends linearly on the spatial coordinates (Riemann ellipsoids) using this constrained Hamiltonian formulation of the problem. This formulation allows us to use robust stability analysis methods, as well as study the dynamics in a straightforward way. The spectral stability results agree qualitatively with that of Chandrasekhar's, but the parameter value is slightly off, and the nonlinear stability analysis results do not give a definite answer due to the nature of the bifurcation (steady-state). It is still possible to use the Rayleigh-Ritz method to determine whether our system is nonlinearly unstable, but due to time constraints this was not done. I would like to thank Dr. Philip J. Morrison (my advisor) for his incredible generosity and incomparable enthusiasm towards the subject and being a teacher. Without the many hours of group meetings, individual lessons, and discussions over the years that we've had, I would not be half the student I am now and certainly I would not be as curious about the many things that interest me at the moment. I would also like to thank Dr. Norm Lebovitz of the University of Chicago, with whom (along with Dr. Morrison) I began this project in the summer of 2014 at Woods Hole Oceanographic Institution's "Geophysical Fluid Dynamics" program in Woods Hole, MA. Finally, I would like to thank Dr. Irene Gamba for her generosity and being of much help during the process of writing this thesis. Another huge influence was Dr. Alexandros Alexakis, who was one of my first true role models as a teacher, scientist, and person. He took me in as a naïve sophomore who knew nothing about fluid dynamics, or what research was about, and had the patience and generosity to take time out of his day to teach me what he knew. I learned so much in the three life-changing months that I spent in Paris, and it certainly shaped who I am today, academically and personally.
Eufonía : didáctica de la música, 2019
Este articulo muestra el valor del uso de las canciones populares en el proceso de ensenanza y ap... more Este articulo muestra el valor del uso de las canciones populares en el proceso de ensenanza y aprendizaje de una segunda lengua. Aprovechando este potencial didactico, se propone una serie de actividades comunicativas que parten del uso de una cancion para lograr desarrollar habilidades y subhabilidades linguisticas.
Proceedings of the 19th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Prospective and trends in technology and skills for sustainable social development” “Leveraging emerging technologies to construct the future”, 2021
Resumen-Las universidades disponen de diferentes plataformas en línea, que operan independienteme... more Resumen-Las universidades disponen de diferentes plataformas en línea, que operan independientemente según la finalidad de cada una de estas. Entre estos portales web no hay una comunicación directa, para enlazar los datos automáticamente de un portal a otro.
Archivos de Medicina (Manizales), 1969
Introducción: La epilepsia es una de las enfermedades neurológicas más frecuentes; existen múltip... more Introducción: La epilepsia es una de las enfermedades neurológicas más frecuentes; existen múltiples estudios sobre la prevalencia en la población general, con cifras que oscilan entre 1,5 y 57 casos por 1.000 habitantes. Los factores de riesgoasociados a esta patología no se han logrado determinar de forma definitiva. Materiales y métodos: mediante un muestreo por conveniencia realizado a los asistentes a controles neurológicos en la Liga Caldense contra la Epilepsia y los acudientes a consulta neuropediátrica al Hospital Infantil de la Cruz Roja Colombiana - Seccional Caldas, se realizó un estudio descriptivo correlacional a partir de encuestas y revisiónde historias clínicas. Resultados: El 73,3% de los pacientes estaban entre los 0 y 20 años, predominó el género masculino (61,3%). El 83,8% pertenecía a un estrato socioeconómico bajo (I-II); el 69,6% fue producto de un primer o segundo embarazo; un 38,2% tuvo un desarrollo psicomotor anormal y un 39,7% presentó un desarrollo del ...
Rev Chil Nutr, Apr 1, 1998
Sediment transport in rivers near the threshold of grain motion is characterized by rare but larg... more Sediment transport in rivers near the threshold of grain motion is characterized by rare but large transport events. This intermittency makes it difficult to relate average sediment flux to average...