En este servicio en línea podrá consultar los trabajos académicos y de investigación
producidos en los diferentes campus de la Universidad Católica de Cuenca, en formato
digital: tesis, monografías, libros, artículos, etc.
Envíos recientes
Relación entre la activación fisiológica (movimientos sacádicos y expresión facial) y el autoengaño en la validez del testimonio.
(Universidad Católica de Cuenca., 2025) Bautista Dominguez, Franklin Steven; Orellana Tamayo, Santiago Javier; Viñanzaca López, Juan Pablo; 0106631237; 0105713531
Introduction. The validity of testimony is crucial in forensic contexts, as it enables psychological experts to provide objective and scientifically supported evidence in court. Physiological arousal, comprising saccadic movements, and facial expressions, is proposed as an objective method for assessing veracity, while self-deception poses a threat to this objectivity. Objective. To determine the relationship between physiological arousal (saccadic movements and facial expression) and self-deception on the validity of testimony. Methodology. This was a descriptive-correlational, observational study with a quantitative, cross-sectional approach. A total of 176 university students aged 18 to 59 participated. The Pepper robot was used as hardware, along with the Eye_tracker and Emotions software tools. Self-deception was assessed using the SDQ-12 questionnaire as a psychometric instrument. Results. Neutral facial expressions predominated (49.4% - 63.1%), and saccadic movements were mostly upward and centered (>94%). Self-deception showed medium levels (68.2%), with significant but weak correlations. Discussion. The findings suggest a limited relationship between physiological arousal and self-deception, consistent with previous research highlighting the complexity and variability of these physiological indicators when evaluating testimonials. The predominance of neutral responses may indicate the need for specific experimental contexts to identify clear patterns. Further studies with controlled experimental designs and more diverse samples are recommended to enhance generalizability and practical application.
Análisis comparativo de métodos de diseño de pavimentos flexibles considerando la estabilización con cal en bases granulares
(Universidad Católica de Cuenca., 2025) Morocho Encalada, Bryam Gerardo; Maldonado Noboa, César Humberto; 0105848196; Leonardo
This research develops a comparative analysis between the flexible pavement design methods proposed by AASHTO and INVIAS, incorporating lime stabilization in granular base materials. The main objective was to evaluate how the addition of lime influences the structural behavior of the granular bases by analyzing the variation of the CBR and its impact on the structural coefficient. To achieve this, laboratory tests were carried out, and both design methods were applied to optimize the pavement structure.
The materials used came from the Áridos y Agregados del Sur and Rookaazul quarries. Granulometry, Atterberg limits, modified Proctor, abrasion, and CBR tests were performed on the materials in their natural state and stabilized with 2.5%, 3.5%, and 5% lime. The materials were classified as Class 1, Type A and B, respectively.
The results showed significant improvements in the strength of the stabilized bases, with CBR increases of up to 116% and 118% depending on the quarry and the percentage of lime applied. This demonstrates the enhancement of the materials with the addition of lime. The comparative analysis between AASHTO and INVIAS showed differences in layer thicknesses, with the AASHTO method requiring thinner base layers. For a traffic volume of 1,000,000 equivalent single axle loads, the INVIAS methodology provides for thinner base thicknesses under more demanding structural conditions, also contributing to a higher structural efficiency of the flexible pavement.
Desarrollo del backend para un sistema de automatización de la gestión de proyectos de vinculación en la universidad católica de cuenca utilizando metodologías ágiles e inteligencia artificial
(Universidad Católica de Cuenca., 2025) Guaicha Vásquez, Kevin Oswaldo; Cuenca, Juan Pablo; 0105886949
This research presents the development of a backend that automates the management of outreach projects at the Catholic University of Cuenca. The platform takes the information requested by the institutional format F-VS-41, verifies budgetary coherence, and generates the official Word document using dynamic templates and HTML blocks via the altChunk technique. Annexes are stored centrally in AWS S3, and natural language queries are resolved with Oracle Select AI on controlled views in Oracle Autonomous Database, preventing users from having to manually review the entire document.
The system's structure followed a hybrid methodology based on Scrum and complemented by elements of the Rational Unified Process (RUP). It was developed in eight sprints covering authentication with JWT, persistence with JPA, dynamic document generation, attachment management, and artificial intelligence integration. Requirements engineering and solution evaluation were supported by the FURPS+ model. Functional (Postman) and load (JMeter) tests with 100 and 200 concurrent users demonstrated acceptable performance within the environment's limitations. In individual measurements, authentication operations (registration and login) respond in the order of hundreds of milliseconds; under sustained load, latency can increase to a few seconds due to the use of free versions of the database, S3, and the deployment platform. The generation of the F VS 41 document varies around 20–30 s when simulating 100 users and approaches 50 s with 200 users. Despite this, test coverage reaches 82%, and no discrepancies were observed between the amounts stored and those reflected in the final file.
The developed system eliminates transcription errors, prevents rework, and accelerates the creation of the F VS 41, while also establishing a scalable foundation for incorporating extensions such as electronic signatures, a web interface, and social impact analytics. This automation contributes to strengthening traceability and transparency in the management of outreach projects, allowing for the demonstration, with verifiable data, of the social relevance of university initiatives.
Determinación del efecto post congelación de microdosis de menaquinona-4 en semen ovino
(Universidad Católica de Cuenca., 2025) Farfán Alvarado, Karen Dayana; Moscoso Piedra, Andrés Leonardo; 0705823151
The ovine semen presents particularly high levels of polyunsaturated fatty acids (PUFAs) in its plasma membrane. This composition causes high instability, making sperm cells prone to reactive oxygen species (ROS) formation. Oxidative stress (OS), triggered by thermal shock and atmospheric oxygen during cryopreservation, increases susceptibility to lipid peroxidation (LPO). Antioxidant supplementation acts and reacts as a protective strategy against this damage. This study proposed Menaquinone-4 (MK-4), a vitamin K homolog from the Menaquinone group, as a potential sperm antioxidant. We tested in the Reproduction Laboratory at Universidad Católica de Cuenca three microdoses of MK-4 (0.5 µM, 1 µM, 2 µM) to assess its effect on post-thaw ovine semen. Results showed dose-dependent variability compared to the control. At 2 µM, membrane integrity parameters were similar to the control. However, the 0.5 µM dose improved progressive motility. These differences suggest that MK-4 efficacy depends on the enzymatic capacity of sperm cells. The absence of UBIAD1 enzyme in donor gonads, due to the lack of endoplasmic reticulum and Golgi apparatus in sperm cells, limits MK-4 utilization. Therefore, antioxidant performance depends on intracellular enzyme availability. This biochemical limitation explains the inconsistent results across doses. MK-4 may offer cryoprotective benefits under specific cellular conditions, particularly in sperm with active metabolic machinery. Findings highlight the importance of considering enzymatic context when using fat-soluble antioxidants in cryopreservation protocols. Further research is needed to optimize MK-4 concentrations and evaluate its in vivo impact on fertility parameters.
Keywords: PUFA; EO; LPO; ROS; UBIAD1
Plataforma web para monitoreo y visualización de parámetros ambientales en café mediante sensores IoT
(Universidad Católica de Cuenca., 2025) Cedillo Illescas, Ángel Ariel; Encalada Arévalo, María Mercedes; Pazmiño Piedra, Juan Pablo; 015009736; 0104903950
The main objective of this study was to design and develop a web platform for real-time monitoring of air and soil parameters in coffee plantations. The research was carried out at Hacienda La Papaya, Saraguro, Ecuador. The software development methodology used was SCRUM, which is oriented to the creation of fast and adaptable solutions to change. For data collection, an IoT sensor network was implemented using LoRa e32 modules that allowed wireless communication over long distances in areas without internet. The sensors used were: RS485 for the soil (measuring NPK, humidity, temperature, salinity, conductivity, and pH variables) and AM2302 for the air (temperature and humidity). An HLK-RM08 gateway was used for data transmission.
For data processing, a backend was structured in Node.js, in charge of receiving and validating the data coming from the sensors and then storing them in the PostgreSQL database. For the visualization of real-time information, Grafana was used to create interactive panels,which allowed a more in-depth analysis of the data. The results obtained demonstrated the functionality and reliability of the platform, the processing and data storage capacity was validated for the end users' needs, which was 500 readings/hour, with a latency of less than one minute in the dashboard.
This solution was validated as a viable and low-cost tool that optimizes agronomic management, thus boosting agriculture and creating a base from which it can be expanded with the implementation of predictive modules, georeferencing, and even artificial intelligence.
