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1
artículo
Publicado 2023
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Bullying is a contemporary social phenomenon that impacts multiple social structures and contexts. This study aimed to establish the association between executive functions (EF) and social cognition in adolescents. A cross-sectional descriptive study with a sample of 109 subjects was selected by convenience sampling. Multinomial logistic regression was performed, finding that social cognition is a protective factor (OR: 0.17 IC 95% 0.05-0.59) (OR: 0.27 IC 95% 0.08- 0.85) in the group of aggressors to controls; in addition, the group of victims to controls (OR: 0.15 IC 95% 0.05 – 0.42) (OR: 0.30 IC 95% (0.11- 0.82). Thus, adequate social cognition is associated as a protective factor against bullying, and presenting deficits in EF is associated with a threefold increased risk of bullying.
2
tesis de grado
Publicado 2022
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The present work “CONTROL THEORY ANDAPPLICATIONS TO THE FOODINDUSTRY. PNEUMATICS. PROGRAMMABLE LOGIC CONTROLLERS (PLC)”, is based on the basic concepts and applications in the food industry that are of great importance. In such a way, it allows us to obtain a manufacturing procedure and quality standards, which is why bibliographic study was made on these topics. Companies dedicated to the manufacture of food, beverages, canned goods or others. They perform a temperature control and record. Therefore, the control theory is used in the engineering area in charge of supervising, analyzing and improving the behavior of the system. It is also necessary to take into account that pneumatics is the most important source of energy in the food in industry in the production process, mainly in the beverage sector, because it allows a complete treatment be carried out anda good quality product t...
3
tesis de maestría
Publicado 2014
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Los principales objetivos de esta tesis son, en primer lugar la identificación de un sistema dinámico no lineal y basado en el modelo identificado proponer una estrategia de control predictivo no lineal basado en modelos (MPC), utilizando un sistema de polinomios ortogonales para expresar las no linealidades del sistema. Otro objetivo de esta propuesta es el uso del algoritmo de control de la “Matriz Dinámica de Control" (DMC). El primer objetivo se logra mediante la aplicación de un método para la identificación de sistemas no lineales utilizando Polinomios de Laguerre Generalizados (PGL), para el cual los parámetros del sistema se extraen utilizando un conjunto de datos de entrada- salida obtenido mediante la aplicación de una secuencia pseudo aleatoria multinivel (PRMS) al sistema utilizado para validar la propuesta. La metodología ha sido validada en el sistema de identifi...
4
artículo
Using Semigroups Theory, we prove the existence of global solution to the viscoelastic bean equation with memory, this bean is having one side fixed and the other one is provided of a control ƒ. Also, using multiplication techniques, Lyapunov functional, dynamic systems and some results of Datko, Buck, we show that the energy associated to the system decays to zero when t → + ∞, that means we get the stability of the bean.
5
tesis de maestría
Publicado 2019
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This master thesis is devoted to the design, analysis, and experimental validation of an energy-based control strategy for the well-known benchmark cart-pole system in implicit Port-Hamiltonian (PH) representation. The control scheme performs two tasks: swingup and (local) stabilization. The swing-up controller is carried out on the basis of a generalized energy function and consists of bringing the pendulum trajectories from the lower (stable) position to a limit cycle (homoclinic orbit), which passes by the upright (unstable) position, as well as the cart trajectories to the desired point. The (local) stabilizing controller is designed under a novel algebraic Interconnection and Damping Assignment Passivity-Based Control (IDA-PBC) technique and ensures the upright (asymptotic) stabilization of the pendulum as well as the cart at a desired position. To illustrate the effectiveness of th...
6
tesis de maestría
Publicado 2019
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This master thesis is devoted to the design, analysis, and experimental validation of an energy-based control strategy for the well-known benchmark cart-pole system in implicit Port-Hamiltonian (PH) representation. The control scheme performs two tasks: swingup and (local) stabilization. The swing-up controller is carried out on the basis of a generalized energy function and consists of bringing the pendulum trajectories from the lower (stable) position to a limit cycle (homoclinic orbit), which passes by the upright (unstable) position, as well as the cart trajectories to the desired point. The (local) stabilizing controller is designed under a novel algebraic Interconnection and Damping Assignment Passivity-Based Control (IDA-PBC) technique and ensures the upright (asymptotic) stabilization of the pendulum as well as the cart at a desired position. To illustrate the effectiveness of th...
7
artículo
Publicado 2019
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Intelligence is a construct of notable impact in our sociocultural context, related to a wide range of conceptual and operational definitions which originate positions that highlights cognitive and abstract elements and emotional and social skills, as well was perspectives that are focused on processes underlying the intelligent performance, such as in the case of executive functions (EFs), which are configured as cognitive processes that make it possible the self-regulation (Miyake & Friedman, 2012). Similarly, there are approaches that give intelligence a relevant and predictive role of school performance, an aspect strengthened by the psychometric perspective, where the concept of intelligence has been closely linked to learning. In this line, we also find the classical perspective of crystallized Intelligence of Cattell (1943), which refers to the knowledge acquired through educa...
8
artículo
Usando la Teoría de Semigrupo probamos la existencia de solución global de la ecuación de la viga con memoria, esta viga esta fija en uno de los extremos y en el otro dotado de un control ƒ. También, usando técnicas multiplicativas, funcional de Lyapunov, sistemas dinámicos y algunos resultados de Datko, Buck, mostramos que la energía asociada al sistema decae a cero cuando t → + ∞.
9
artículo
Publicado 2021
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The purpose of the study was to test the effectiveness of the application of the first and second derivatives to analyze the mathematical functions in future teachers of Mathematics and Physics at UNHEVAL; for this, a cause-effect study and quasi-experimental design was carried out, hoping to optimize the learning of functions in a graphical and analytical way, by means of the exact location of the maximum and minimum points, inflection, determination of the concavity up and down, and others; we worked with a sample of 114 students, of them 73 units of analysis were control and 41 experimental; the data were collected with the written evaluative test, and they were processed obtaining descriptive statistics that allowed to say that the value Z = 7,09 is higher with respect to the critical z = 1,96 at 95% reliability, which allowed to reject the null hypothesis and accept the research hyp...
10
artículo
Publicado 2021
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The purpose of the study was to test the effectiveness of the application of the first and second derivatives to analyze the mathematical functions in future teachers of Mathematics and Physics at UNHEVAL; for this, a cause-effect study and quasi-experimental design was carried out, hoping to optimize the learning of functions in a graphical and analytical way, by means of the exact location of the maximum and minimum points, inflection, determination of the concavity up and down, and others; we worked with a sample of 114 students, of them 73 units of analysis were control and 41 experimental; the data were collected with the written evaluative test, and they were processed obtaining descriptive statistics that allowed to say that the value Z = 7,09 is higher with respect to the critical z = 1,96 at 95% reliability, which allowed to reject the null hypothesis and accept the research hyp...
11
tesis de maestría
Publicado 2017
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The area of fractional calculus is more than three centuries old but applications have only appeared in the past few decades. Differential equations of non-integer order are known to represent certain physical processes in a more precise way than using the usual differential equations with integer order. Therefore, considering fractional calculus in the context of input- output systems can be beneficial. A useful representation of an input-output map in control theory is the Chen-Fliess functional series or Fliess operator. It can be viewed as a generalization of a Taylor series, and its algebraic nature is especially well suited for several important applications. In this thesis, a general solution for a fractional linear and bilinear time invariant system via formal power series methods and Fliess operators is presented. A mathematical model (that includes a differential equation) for ...
12
tesis de maestría
Publicado 2017
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The area of fractional calculus is more than three centuries old but applications have only appeared in the past few decades. Differential equations of non-integer order are known to represent certain physical processes in a more precise way than using the usual differential equations with integer order. Therefore, considering fractional calculus in the context of input- output systems can be beneficial. A useful representation of an input-output map in control theory is the Chen-Fliess functional series or Fliess operator. It can be viewed as a generalization of a Taylor series, and its algebraic nature is especially well suited for several important applications. In this thesis, a general solution for a fractional linear and bilinear time invariant system via formal power series methods and Fliess operators is presented. A mathematical model (that includes a differential equation) for ...
13
La psicología: Concepciones, importancia, teorías y enfoques. Aplicación didáctica: Diseño de clases
Publicado 2021
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El objetivo de este trabajo de investigación fue el ser humano siempre se ha interrogado de las ideas, los sentimientos y otras cuestiones a fines. Como se ha comentado al principio de este trabajo de investigación, la psicología va a ser la ciencia que se encarga de poder describir, descifrar e interpretar cada una de estas cuestiones. Al principio la psicología tuvo como base feudalmente el estudiar la mente. Pero en el transcurso de su desarrollo aparecieron nuevas teorías, nuevos enfoques y todos concluyen en que el estudio de la psicología hace referencia a la manifestación del comportamiento y/o conducta humana. La psicología estudia el comportamiento y el desarrollo mental. Los psicólogos aplicarán el método científico a través de las observaciones minuciosas para explicar lo que han observado, luego formularán teorías, harán nuevas predicciones basándose en ellas...
14
artículo
Publicado 2022
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Bullying is a contemporary social phenomenon that impacts multiple social structures and contexts. This study aimed to establish the association between executive functions (EF) and social cognition in adolescents. A cross-sectional descriptive study with a sample of 109 subjects was selected by convenience sampling. Multinomial logistic regression was performed, finding that social cognition is a protective factor (OR: 0.17 IC 95% 0.05-0.59) (OR: 0.27 IC 95% 0.08- 0.85) in the group of aggressors to controls; in addition, the group of victims to controls (OR: 0.15 IC 95% 0.05 – 0.42) (OR: 0.30 IC 95% (0.11- 0.82). Thus, adequate social cognition is associated as a protective factor against bullying, and presenting deficits in EF is associated with a threefold increased risk of bullying.
15
artículo
Publicado 2017
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This article is concerned with pointing out and believing that the Criminal Procedure Code of 2004, considering the judgment stage as a main phase of the criminal proceedings under the principles of orality, publicity, immediacy, contradiction and procedural equality, among others, would demonstrate a clearly established delimitation of functions, both for the procedural parties, as well as for the impartial third party, forming a triadic scenario in the judgment. Therefore, beyond the observation, control and direction of the oral judgment, it would be counterproductive to accept some judicial intervention in the probative activity as also prescribed in the said adjective code. The objectives of the study are to identify which procedural and structural principles that govern the oral trial are violated with the powers of intervention of the judge of judgment within the framework of the...
16
tesis de grado
17
tesis de grado
Publicado 2016
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La globalización de la economía y de la administración en general significa para cada organización, la implementación de estrategias que permitan su adaptación y competitividad; siendo el capital humano uno de los elementos primordiales al momento de evaluar el rendimiento y proyección. La estructura organizacional como parte del diseño organizacional y éste a su vez del proceso de organizar, forma parte de la teoría general de la Administración y su evolución; puntualizándose como la forma en que se dividen, agrupan y coordinan las actividades entre los diferentes niveles de las organizaciones. Ante lo expuesto y en base a la problemática que enfrenta “Almacén de Remates S.A.C”, de no contar con una organización formal, bajo una dirección empírica, surge la necesidad de formular una propuesta de estructura organizacional para el punto de venta principal, de cuyo é...
18
tesis de grado
Publicado 2025
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El presente trabajo propone el rediseño funcional de una máquina CNC de bajo costo desarrollada previamente en el curso de Proyecto Mecatrónico 2 (PM2), con el propósito de corregir las deficiencias estructurales y de desempeño identificadas en su primera versión. La máquina original, destinada al prototipado electrónico en el contexto del mercado peruano del Jr. Paruro y de la comunidad universitaria de la UPC, presentaba limitaciones en rigidez, vibración y seguridad, lo que generaba reprocesos y acabados no uniformes en las piezas fabricadas. El proyecto plantea el diseño mejorado de dicha CNC, optimizado para el trabajo de placas de hasta 10 × 15 cm, mediante la aplicación de simulaciones estructurales, análisis del factor de seguridad y teoría de materiales, complementados con la integración de un nuevo controlador y la incorporación de medidas de seguridad no presen...
19
tesis de grado
Publicado 2018
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La investigación tiene por objetivo, determinar el proceso del ambiente de control en el control interno, en una MYPE de turismo de Lima Metropolitana, debido a que por mucho tiempo el alcance del Control Interno estuvo limitado a las áreas económicas, y cuando se hablaba de Control Interno se entendía que era inherente a las actividades de Contabilidad y Finanzas; el resto de las áreas operacionales y de hecho sus colaboradores no se sentían involucrados. Esto hizo que en la investigación se maneje una metodología que “por su finalidad es pura o básica porque es rigurosa, organizada y se lleva a cabo cuidadosamente, aportando conocimiento, nuevas teorías y principios básicos” Hernández, Fernández & Baptista (2016). Por otro lado, “Por su nivel de investigación es descriptiva, porque señala cómo es y cómo se manifiesta un fenómeno o evento, cuando se busca especif...
20
libro
The aim of this study is to understand and control type 1 diabetes mellitus, using state theory and algorithms to control Kalman filters. In some northern countries it is acquiring truly epidemic characteristics. All people over 40 years of age, with diabetic ancestors, being overweight or drinking too much liquor, have a tendency to acquire the disease. In fact, diabetes is directly or indirectly responsible for the increase in the death rate in the country, and the existence of a large number of people who are blind or disabled. In Peru, there are approximately one million diabetics, of whom 50% do not know they have the disease and it is estimated that about one in 20 diabetics suffer from Type 1 diabetes mellitus, also known as juvenile or insulin dependent diabetes. In front of it, the scientists of the world are developing different technologies in order to alleviate the disease wi...
