1. Mejorar el acceso de jóvenes profesionales a procesos de investigación e innovación
2. Aumentar la vinculación de jóvenes profesionales en grupos I+D+l.
3. Aumentar numero de jóvenes profesionales que participan en actividades de apropiación social del conocimiento en CTel.
El 15 de noviembre de 2022 se realizaron las Primeras Jornadas de Reflexión del Proyecto titulado: “Implementación Del Proyecto De Jóvenes Investigadores E Innovadores En El Departamento Del Cauca”, las cuales se presentan en el marco de la primera convocatoria de financiación de las becas-pasantías ofertadas.
El evento que contó con palabras de apertura del señor Rector Deibar René Hurtado Herrera, el Vicerrector Francisco José Pino Correa y el director del proyecto Carlos Alberto Cobos; se llevó a cabo en la Casa de la Moneda.
Posterior a la apertura los asistentes disfrutaron de conferencias Magistrales, la primera de estas orientada por Edier Gaviria funcionario de la DAE y el Adolfo Plazas Tenorio investigador del proyecto ECoS-CTei.
Gracias al evento se realizó la divulgación de los artículos de reflexión de los jóvenes investigadores beneficiarios del proyecto. Las ponencias fueron presentadas de acuerdo al foco estratégico en el cual se enmarca la investigación realizada.
La cobertura del evento se muestra a continuación:
Unicauca al día: https://www.facebook.com/UniCaucaAlDia/videos/470169155106696
Transmisión: https://youtu.be/PAWnJZ_y5TQ
Nota de prensa Unicauca: http://www.unicauca.edu.co/versionP/noticias/investigaci%C3%B3n/proyecto...
Agenda del evento: https://onedrive.live.com/?authkey=%21AIcJOFj6GFA7yNA&cid=C727F360299B57...
El viernes 14 de abril de 2023 se llevó a cabo el lanzamiento del libro "Reflexiones de los Proyectos de Jóvenes Investigadores e Innovadores en el Departamento del Cauca 2022". Editado e impreso por el Sello Editorial de la Corporación Universitaria Autónoma del Cauca, el texto es el resultado de la primera convocatoria de financiación de becas-pasantías en el marco del proyecto “Implementación del Proyecto de Jóvenes Investigadores e Innovadores en el Departamento del Cauca”. El lanzamiento del libro que tuvo lugar en la Facultad de Ciencias Humanas y Sociales de la Universidad del Cauca, contó además con la intervención de César Jesús Pardo Calvache, miembro del equipo de coordinación del Proyecto de Jóvenes Investigadores y Ramsés López Santamaría, editor general de esta publicación. Asimismo, asistieron Juan Carlos Pino Correa, Editor General del Área de Desarrollo Editorial y delegado de la Vicerrectoría de Investigaciones de la Universidad del Cauca; Iván Marcelo Gallego, representante de la Oficina de Planeación; el equipo de editores del libro y los estudiantes y tutores que hicieron parte del proyecto Jóvenes Investigadores en las diferentes instituciones educativas participantes.
El libro se encuentra disponible de manera digital en el enlace que se muestra a continuacion: https://www.researchgate.net/publication/372442644_Reflexiones_de_los_proyectos_de_Jovenes_Investigadores_e_Innovadores_en_el_Departamento_del_Cauca_2022
Nota de prensa Unicauca: https://www.unicauca.edu.co/versionP/noticias/investigaci%C3%B3n/proyect...
| Número | Nombre del joven | Nombre del Tutor | Título del artículo | Referencia | Abstract | Categoría | Institución postulante |
| 1 | Darwin Alexis Arrechea Castillo | Apolinar Figueroa Casas | Multiclass Land Use and Land Cover Classification of Andean Sub-Basins in Colombia with Sentinel-2 and Deep Learning | Arrechea-Castillo, Darwin Alexis, Yady Tatiana Solano-Correa, Julián Fernando Muñoz-Ordóñez, Edgar Leonairo Pencue-Fierro, y Apolinar Figueroa-Casas. 2023. “Multiclass Land Use and Land Cover Classification of Andean Sub-Basins in Colombia with Sentinel-2 and Deep Learning”. Remote Sensing 2023, Vol. 15, Page 2521 15(10):2521. doi: 10.3390/RS15102521. | Land Use and Land Cover (LULC) classification using remote sensing data is a challenging problem that has evolved with the update and launch of new satellites in orbit. As new satellites are launched with higher spatial and spectral resolution and shorter revisit times, LULC classification has evolved to take advantage of these improvements. However, these advancements also bring new challenges, such as the need for more sophisticated algorithms to process the increased volume and complexity of data. In recent years, deep learning techniques, such as convolutional neural networks (CNNs), have shown promising results in this area. Training deep learning models with complex architectures require cutting-edge hardware, which can be expensive and not accessible to everyone. In this study, a simple CNN based on the LeNet architecture is proposed to perform LULC classification over Sentinel-2 images. Simple CNNs such as LeNet require less computational resources compared to more-complex architectures. A total of 11 LULC classes were used for training and validating the model, which were then used for classifying the sub-basins. The analysis showed that the proposed CNN achieved an Overall Accuracy of 96.51% with a kappa coefficient of 0.962 in the validation data, outperforming traditional machine learning methods such as Random Forest, Support Vector Machine and Artificial Neural Networks, as well as state-of-the-art complex deep learning methods such as ResNet, DenseNet and EfficientNet. Moreover, despite being trained in over seven million images, it took five h to train, demonstrating that our simple CNN architecture is only effective but is also efficient. | A1 | Universidad del Cauca |
| 2 | Angelica Maria del Carmen Perez Calvo | Zuly Yuliana Delgado Espinosa | Coffee Pulp: A Sustainable and Affordable Source for Developing Functional Foods | Calvo, Angélica Pérez, Nelson Paz Ruiz, y Zuly Delgado Espinoza. 2023. “Coffee Pulp: A Sustainable and Affordable Source for Developing Functional Foods”. Processes 2023, Vol. 11, Page 1693 11(6):1693. doi: 10.3390/PR11061693. | Coffee cultivation in the Department of Cauca, Colombia, is vital for much of the depart- ment’s economy. Coffee processing generates waste, such as pulp, which accounts to about 40% of the fresh fruit. Currently, in most cases in Cauca, coffee byproducts are discarded, and, in other cases, the coffee pulp is used for fertilizers, generating environmental problems due to its decomposition. This research aims to design a process for supplying a functional food in the form of an energy bar based on coffee pulp and other components of the region, such as quinoa and panela, helping to mitigate the environmental impact of coffee production. Our research included four phases. First, we determined the study area; in the second phase, we studied an energy bar’s nutritional and physical characteristics. Then, the requirements and specifications of the bar were defined, and the authors documented the process diagram, variables within the process, and the quality plan. Finally, the authors conducted experiments to determine optimal mixing proportions. From the experiment with the mixtures, we found a formulation that satisfies the needs and specifications of the bar which is composed of 50% cereals, 30% panela syrup, and 20% coffee pulp. The selected formulation’s qualitative properties (organoleptic, chemical, and microbial) are acceptable for human consumption and provide high energy content of 365.21 and 291.56 kcal/100 g for the energy bar and coffee pulp raisins, respectively. | A2 | Corporación Universitaria Comfacauca |
| 3 | Juan Alejandro Pérez Aguilar | Ricardo Benítez Benitez | Production of Medium Chain Length Polyhydroxyalkanoate from Waste Cannabis sativa Biomass | Pérez Aguilar, Juan Alejandro, Jaime Martin Franco, Iván Darío Otero, and Ricardo Benítez Benítez. 2024. “Production of Medium Chain Length Polyhydroxyalkanoate from Waste Cannabis Sativa Biomass.” Waste and Biomass Valorization 15(7):4221–33. doi: 10.1007/S12649-024-02431-5/FIGURES/7. | This works aims to evaluate a process to convert residual medical Cannabis sativa stalks into medium chain length polyhydroxyalkanoate (mcl-PHA), using chemical pretreatment and enzymatic hydrolysis to obtain sugars as a carbon source for a fermentation process with Pseudomonas aeruginosa. Chemical composition analysis revealed a content of structural polysaccharides of 57.64%. Thermochemical pretreatments with 2% sulfuric acid or 2% sodium hydroxide were capable of partially removing hemicellulose and lignin, as well as increasing cellulose crystallinity. Pretreated biomass was subjected to hydrolysis using commercial cellulase cocktails Celluclast® 1.5 L and Cellic® CTec3. Acid pretreatment showed an adverse effect on hydrolysis yield of holocellulose, decreasing to 39.5%; compared to 44.4% of untreated biomass. Alkaline pretreatment increased degree of hydrolysis up to 73.3%. Shake flask fermentation of hydrolysate with Pseudomonas aeruginosa produced cell growth of 1.65 g/L and a mcl-PHA titer of 0.41 g/L. Extracted polymer presented characteristic FTIR bands for PHAs, glass transition temperature of − 50.8 °C, melting temperature of 48.9 °C, possibly allowing its use in the biomedical industry. The developed process represents a potential way to valorize Cannabis waste stalks, using alkaline pretreatment, enzymatic hydrolysis with Celluclast® 1.5 L and fermentation with Pseudomonas aeruginosa. Further work should focus on improving yield of the obtained polyhydroxyalkanoate in fermentation, in order to improve industrial feasibility of the entire process and, in turn, increasing revenue of the medical Cannabis industry. | A2 | Universidad del Cauca |
| 4 | Adriana Rocío Chantre López | Héctor Samuel Villada Castillo | Propiedades mecánicas de películas obtenidas a partir de pellets de almidón termoplástico almacenados en diferentes condiciones | López, Adriana Rocío Chantre, Hector Samuel Villada Castillo, Jhon Jairo Palechor Trochez, Camilo Elías Montilla Buitrago, and Rudy Alberto Gómez López. 2023. “Propiedades Mecánicas de Películas Obtenidas a Partir de Pellets de Almidón Termoplástico Almacenados En Diferentes Condiciones.” Acta Agronómica 72(3). doi: 10.15446/ACAG.V72N3.108129. | The development of biodegradable materials as a replacement for conventional plastics has been studied and analyzed up to the point of production, however, there are few studies on determiningof the useful life of pellets from starch to obtain biodegradable materials, have been made fromwood pellets, using coatings, thermal pretreatments, additives, etc., in order to increase their useful life or storage time. In this sense, the objective of this study was to determinethe effects of packaging and storage conditions on the final properties of pellets and films produced from thermoplastic cassava starch (TPS) and polylactic acid (PLA). The pellets were stored in three types of packaging (multilayer cellulose, polyethylene and paper), with three relative humidities (70%, 26% and 10%) and were processed on days 0, 8, 20, 40 and 75 to obtain the films. Their mechanical properties were measured as a response variable. It was obtained that the factors type of packaging and storage time of the pellets significantly affect the tensile mechanical properties of the films obtained from the stored pellets, presenting a decrease in the stress in the longitudinal direction from 15MPa to 10MPa and an increase in the deformation percentage of approximately 20% with respect to the control sample, due to the retrogradation and plasticization process that starch undergoes when it is stored. Multilayer cellulose packaging and polyethylene were shown to be two possible types of packaging to store the pellets for 20days. | B | Universidad del Cauca |
| 5 | Alexis Alejandro López Sandoval | Claudia Patricia Acosta Astaiza | Genotipos de virulencia de Helicobacter pylori y su asociación con lesiones precursoras de malignidad gástrica y parámetros histológicos en pacientes colombianos | López Sandoval, Alexis Alejandro, y Claudia Patricia Acosta Astaiza. 2023. “Genotipos de virulencia de helicobacter pylori y su asociación con lesiones precursoras de malignidad gástrica y parámetros histológicos en pacientes colombianos”. Revista Peruana de Medicina Experimental y Salud Pública: 348–53. | The aim of this research was to determine the presence of Helicobacter pylori virulence genotypes and their association with precursor lesions of gastric malignancy and histological parameters in patients with dyspepsia symptoms in southwestern Colombia. Polymerase chain reaction (PCR) was used for the genetic characterization of vacA, cagA, babA2 and sabA. The chi-square or Fischer test were used to evaluate the association between each genotype and the clinical outcome. We found that 86.3% of the patients with precursor lesions of gastric malignancy presented the vacA s1/m1 genotype, 68.1% had the cagA+ genotype and 68.8% and 55.8% had the babA2+ and sabA+ genotypes, respectively. Our results show association between virulence genotypes and severe degree of polymorphonuclear cell infiltration. In addition, we found an association between the combination of vacA/cagA, vacA/sabA and babA2/sabA genes. This study provides evidence about the association of H. pylori virulence genotypes and gastric inflammation in infected patients. | B | Universidad del Cauca |
| 6 | Durley Yohanna Becerra Perenguez | Claudia Patricia Acosta Astaiza | Gestión del recurso hídrico en la ruralidad, mediante estrategias de fortalecimiento comunitario | Becerra-Perenguez, Durley Yohanna, Claudia Patricia Acosta-Astaiza, and Javier Leyton-Luna. 2024. “Gestión Del Recurso Hídrico En La Ruralidad, Mediante Estrategias de Fortalecimiento Comunitario.” Entramado 20(1):10054. doi: 10.18041/1900-3803/ENTRAMADO.1.10054. | Community strengthening based on participatory strategies is a process that organizes, promotes, and generates transformations to improve water resource management in rural areas. Objective: Show the community strengthening strategies based on the principles of social appropriation of knowledge for the improvement of water resource management in a specific rural area of the department of Cauca. Methodology: An exploratory qualitative research study was carried out by implementing rural community strengthening strategies for water resource management, oriented under the five principles of the National Policy for Social Appropriation of Knowledge. Results: The survey of contexts through work with focus groups and social mapping evidenced environmental and social problems, highlighting the intercultural conflict between indigenous and peasant populations. The participation strategies used allowed the co-creation of an action agenda for transformation at the watershed, aqueduct system, school, and household levels. Conclusion: Community participation is an essential component that allows effective prioritization of the challenges associated with water resources. In addition, it facilitated the planning of transformative actions and the implementation of sustainable solutions through the collective construction of knowledge. These findings highlight the importance of integrating community participation and the principles of Social Appropriation of Knowledge to comprehensively and effectively address water management challenges in rural territories. | B | Universidad del Cauca |
| 7 | Jhan Carlos Delgado Rodríguez | Ricardo Benítez Benitez | Extracción verde y eficiente de cannabidiol, tetrahidrocannabinol, cannabinol y cannabigerol de Cannabis sativa empleando disolventes eutécticos profundos naturales basados en mentol | Rodríguez, Jhan Carlos Delgado, Paola Andrea Arango Romero, y Ricardo Benítez Benítez. 2023. “Extracción verde y eficiente de cannabidiol, tetrahidrocannabinol, cannabinol y cannabigerol de Cannabis sativa empleando disolventes eutécticos profundos naturales basados en mentol”. Ciencia e Ingeniería Neogranadina 33(1):87–104. doi: 10.18359/RCIN.6588. | The national and worldwide interest in cannabis has increased in recent years due to its medicinal properties and industrial applications. Therefore, multiple techniques for extracting and producing derivatives have been developed. Still, it is necessary to develop new, green, more efficient methodologies for obtaining phytocannabinoids and making cannabis preparations. Deep eutectic solvents are green, safe, and versatile solvents to obtain cannabis metabolites. This research prepared nineteen low-viscosity deep eutectic solvents based on menthol, β-sitosterol, and fatty acids, which were more efficient in extracting phytocannabinoids by ultrasound-assisted extraction than ethanol. The solvent Menthol: Octanoic acid 3:1 presented the highest extraction yield (32.42 %) by ultrasound employing a 23 factorial design with which the following optimal conditions were found: time of 60 minutes, %DES of 100 %, and a Cannabis: DES ratio 1:20. This study presents a green and efficient extraction of phytocannabinoids of industrial, medicinal or cosmetic interest and becomes an alternative to conventional techniques for the preparation of cannabis derivatives; the process is novel, optimizable and has great potential to establish industrial scale processes.an alternative to conventional techniques for the preparation of cannabis derivatives; the process is novel, optimizable and has great potential to establish industrial scale processes. Keywords: cannabis; | B | Universidad del Cauca |
| 8 | Jhan Carlos Delgado Rodríguez | Ricardo Benítez Benitez | Antioxidant activity of non-psychoactive cannabis varieties from north cauca, colombia | Andrea, Paola, Arango Romero, Jhan Carlos Delgado, Sandra Marcela Muñoz, Luis Llanos, and Ricardo Benítez. 2024. “Actividad Antioxidante de Variedades de Cannabis Del Norte Del Cauca, Colombia.” Ciencia En Desarrollo 15(1):178–93. doi: 10.19053/01217488.V15.N1.2024.15214. | The present study aims to publicize the chemical composition and possible medicinal potential of varieties of non-psycho active cannabis grown in the department of Cauca. Cannabinoids were identified and quantified by high-performance liquid chroma-to graphy coupled to an ultraviolet detector (HPLC/UV) for the analysis of the flower, and gas chromatography coupled to a mass spectrometer (GC-MS) for the analysis of the ethanolic extracts and content terpenes. Phenols were quantified by reaction with the Folin & Ciocalteau reagent; for the determination of flavonoids and anthraquinones, the extracts were treated withAlCl3. Finally, to determine the antioxidant activity, three methods were used: DPPH, ABTS and FRAP. It was possible to determine that varieties A and B contained percentages of total tetrahydrocannabinol (THC) less than 1 % and percentages of total cannabidiol (CBD) between 9-15 %. In the ethanolic extracts concentrations (w/w) of CBD were reached in varieties A and B, of 10 % and 13.7 %, respectively. Nine terpenes from sample A and seven from sample B were identified and quantified, with β−caryophyllene being the most abundant in both. Considering that there is evidence in the literature that the CBD/THC ratio influences biological activity, ethanolic extracts of varieties A and B are expected to have moderate to low antioxidant activity, which, according to some researchers, it may be associated with the neuroprotective effect, which may be favored by the presence of β−caryophyllene. | B | Universidad del Cauca |
| 9 | Juan Alejandro Pérez Aguilar | Ricardo Benítez Benitez | Aprovechamiento de tallos de Cannabis sativa por pretratamiento termoquímico e hidrólisis enzimática | Alejandro, Pérez Aguilar Juan, y Benítez Benítez Ricardo. 2024. “Aprovechamiento de tallos de Cannabis sativa por pretratamiento termoquímico e hidrólisis enzimática”. Ciencia en Desarrollo. | This work aims to evaluate a possible route for valorization of this waste by its conversion into medium chain length polyhydroxyalkanoates (PHAs); a type of biodegradable polyester, via fermentation using Pseudomonas aeruginosa. Chemical composition analysis revealed a content of structural polysaccharides of 57,64%. Thermochemical pretreatments with 2% sulfuric acid or 2% sodium hydroxide were capable of partially removing hemicellulose and lignin, as well as increasing cellulose crystallinity. Acid pretreatment showed an adverse effect on hydrolysis yield of holocellulose, decreasing to 39.5%; compared to 44.4% of untreated biomass. Alkaline pretreatment increased degree of hydrolysis up to 73.3%. Shake flask fermentation of hydrolysate with Pseudomonas aeruginosa produced cell growth of 1.65 g/L and a mcl-PHA titer of 0.41 g/L. Extracted polymer presented characteristic FTIR bands for PHAs, glass transition temperature of -50.8 °C and melting temperature of 48.9 °C, possibly allowing its use in the biomedical industry. | B | Universidad del Cauca |
| 10 | Luis Miguel Flor Campo | José Fernando Grass Ramírez | Caracterización física para el aprovechamiento de la médula de coco de la Costa Pacífica Caucana, Colombia | Flor Campo, Luis Miguel, y José Fernando Grass Ramírez. 2023. “Caracterización física para el aprovechamiento de la médula de coco de la Costa Pacífica Caucana, Colombia”. Acta Agronómica 72(1). doi: https://doi.org/10.15446/acag.v72n1.108072. | Coconut mesocarp is a residual material from the production of coconut on the Pacific Coast of Caucana; however, coconut fiber and pith can be extracted from the mesocarp, the latter, with a high potential for use for the production of culture substrates. Therefore, the objective of this study wasto make a morphological, physical and phytotoxicity characterization of the coconut pith from coconut samples of the typical, Malay and hybrid varieties from the municipalities of Guapi, López de Micay and Timbiquí, on the Pacific Coast of Cauca. The proportion of the mesocarp at morphological level with respect to the fruit did not differ between the plants and ranged from 35.27% to 48.48%. The particle size with a proportion greater than 2.0mm and less than 0.24mm wasfound in the samples T-A2 and G-A2, respectively, while the parameters of water retention capacity, apparent density, pH, and electrical remained similarin all samples, with values between 92.73±0.04 to 94.55±0.03% p/p; 0.04 to 0.0528g/cm3; 5.593 to 6.032 and 3.51 to3.83dS/m, respectively. While the Munoo-Liisavitality index was in a margin similar to the control (%MVL=100), only a slight inhibitory effect was present in the degree of germination in the 1.0g/L dilution, with which, there is no direct risk to the plants and it can be a usable material in the preparation of a culture substrate. | B | Universidad del Cauca |
| 11 | María Paula Durán Montoya | Claudia Fernanda Villaquiran R. | Efecto del precursor de calcio en las propiedades estructurales y microestructurales de la hidroxiapatita | Villaquiran Raigoza, Claudia Fernanda, María Paula Durán Montoya, y Sonia Gaona Jurado. 2024. “Efecto del precursor de calcio en las propiedades estructurales y microestructurales de la hidroxiapatita”. Revista EIA 21(41). doi: https://doi.org/10.24050/reia.v21i41.1695. | Nowadays the bone conditions have been a meaning clinical challenge and solutions are limited, sometimes ineffective. Hydroxyapatite investigation (main bone component) has gained significant importance. In this research, was analyzed the calcium precursor effect on structural and microstructural properties of hydroxyapatite comparing results of hydroxyapatite obtained from a natural source. Through the solution combustion synthesis were synthesized hydroxyapatite powders using calcium carbonate extracted from eggshell and commercial calcium carbonate and calcium nitrate. As well the natural source of hydroxyapatite was bovine bone which was washed, fractured and heat treatment. The functional groups were obtained by infrared spectroscopy and the crystalline phases by X-ray diffraction. Transmission electron microscopy allowed to determine the particle spherical morphology produced from calcium carbonate (eggshell) with the smallest size (∼20-50 nm) while those obtained by commercial precursors presented nonhomogeneous morphology. The results showed that the respective process followed was efficient to get hydroxyapatite nanoparticles obtained from calcium carbonate at temperature of 1100ºC. Calcium carbonate from eggshells allowed getting HAp whose morphology was homogeneous with nanometric size. | B | Universidad del Cauca |
| 12 | Nataly Andrea Orozco Bolaños | Elizabeth Roldán González | Ejercicio físico y educación para reducir sedentarismo, malos hábitos alimentarios, sobrepeso y obesidad infantil. | Orozco Bolaños, Nataly Andrea, María Alejandra Orozco Torres, María Luisa Hurtado Otero, María Fernanda Ortiz Cabrera, and Elizabeth Roldán González. 2024. “Ejercicio Físico y Educación Para Reducir Sedentarismo, Malos Hábitos Alimentarios, Sobrepeso y Obesidad Infantil.” Retos. Nuevas Tendencias En Educación Física, Deporte y Recreación. | Identify the effects of a physical exercise and health education program on sedentary behaviors and poor eating habits in overweight and obese schoolchildren. A prospective quasi-experimental design study (10 weeks) with pretest-posttest comparison. Instruments: anthropometric characterization of the schoolchildren was carried out based on the reference patterns and cut-off points established for the population. Eating habits were determined with the Health Habits Questionnaire related to Childhood Overweight/Obesity (CHS-SO). To identify sedentary behaviors, the YAP-SL questionnaire (Youth Activity Profile - Spain- Free version for Latin America) was used. Initially, 135 children from three educational institutions (public and private) were evaluated. Sixty schoolchildren who met the inclusion criteria (BMI for age ≥2 SD) were assigned to two groups: Experimental Group (EG: 32) and Non-experimental Group (NEG: 28). The experimental group underwent the intervention program with exercise and education for schoolchildren and education for parents. The NESG entered the school recess period. The post-test and pre-test measurements showed favorable changes in the levels of physical activity (PA) and eating habits statistically significant. | B | Fundación Universitaria María Cano |
| 13 | Raul Fernando Sanchez Aguilar | Javier Andrés Muñoz Chaves | Structural, thermal and morphological characterization of Crescentia cujete (totumo) with potential use as biodegradable polymer | Sánchez Aguilar, Raúl Fernando, Alexis Yineer Castillo, Sandro Alberto Ibarra Sánchez, and Javier Andrés Muñoz Chaves. 2023. “Caracterización Estructural, Térmica y Morfológica de Crescentia Cujete (Totumo) Con Potencial Uso Como Polímero Biodegradable.” Revista U.D.C.A Actualidad & Divulgación Científica 26(2). doi: 10.31910/RUDCA.V26.N2.2023.2398. | Currently, it is recognized that plastics derived from petrochemicals are one of the biggest social and environmental problems due to their excessive use and difficulty in decomposition, which has increased the concern to find alternatives to these materials. This study characterizes the fruit of Crescentia cujete (calabash tree) as a biodegradable polymer through DRX, FTIR, DSC, TGA, and qualitative biodegradability analysis. The structural characterization revealed a semi-crystalline material composed mainly of type I cellulose, with a crystallinity of 29%. The material’s thermal stability was determined to be up to 175 °C, with moisture loss being the only observation at this temperature. The presence of hemicellulose and cellulose at higher temperatures and their subsequent decomposition were confirmed. The biodegradability study indicated the presence of microbial attack at 72 hours of monitoring, evidenced by the appearance of a fungus on the material surface, causing changes in CO2 and CO emissions. After 200 hours, a decrease in the volume of the fungus was observed, suggesting that it spread inside the material, giving rise to black spots of decomposition on the surface of the samples. Thus, calabash tree could be considered as an alternative lignocellulosic material for the preparation of biodegradable polymeric materials. | B | Corporación Universitaria Comfacauca |
| 14 | Santiago Hyun Dorado | Julio Ariel Hurtado Alegría | Traceability of Architectural Design Decisions and Software Artifacts: A Systematic Mapping Study | Dorado, Santiago Hyun, y Julio Ariel Hurtado Alegría. 2023. “Traceability of Architectural Design Decisions and Software Artifacts: A Systematic Mapping Study”. Foundations of Computing and Decision Sciences. | The definition of architecture is a crucial task in software development, where the architect is responsible for making the right decisions to meet specific functional and quality requirements. These architectural design decisions form the foundation that shapes the arrangement of elements within a system. Unfortunately, these decisions are often poorly documented, implicit in various artifacts, or inadequately updated, leading to negative consequences on the maintainability of a system and resulting in rework and cost overruns. The objective of this systematic mapping study is to comprehend the current state regarding approaches for traceability of architectural design decisions and how these decisions are linked with the different artifacts used in software development. To achieve this, an information extraction protocol is followed, utilizing databases with search strings, inclusion, and exclusion criteria. The findings demonstrate that this knowledge is highly relevant; however, it is rarely explicitly documented. As a result, most works propose diverse approaches to extract this knowledge from existing technical documentation, commonly used tools, and other sources of product and process information. In contrast, it is evident that there is no standard for documenting design decisions, leading each author to present a subjective version of what is important and where to trace these decisions. This suggests that there is still a significant amount of research to be conducted regarding the traceability of these architectural design decisions and their connection with software artifacts. Such research could lead to intriguing new proposals for investigation. | B | Universidad del Cauca |
| 15 | Shiomara Mileydi Zuñiga Meneses | Edier Humberto Pérez | Construyendo saberes y conocimientos agroecológicos como economía comunitaria en Silvia (Cauca, Colombia) | Zuñiga, Shiomara Mileydi, Sandra Patricia Rebolledo y Edier Humberto Pérez, "Construyendo saberes y conocimientos agroecológicos como economía comunitaria en Silvia (Cauca, Colombia)", Tecné, Episteme y Didaxis (TED), 54, 247–264. https://doi.org/10.17227/ted.num54-17616 | The following article presents the construction of knowledge and agroecological knowledge as an innovation for possible business models in Silvia (Cauca, Colombia) to develop. Process carried out in the project Development of water and food security strategies for economic reactivation in rural communities through the transfer of technologies and knowledge for innovation as a measure of attention to the Covid-19 emergency in Cauca. An exercise generated from the use of a business model puzzle tool, a graphic representation that in a circular way presents the components of the tool for the generation of a new business model for rural organizations, a tool built in the project Construction of Business models for Social innovation. As a collective result, business models were obtained such as Agrotourism, Dairy Transformation, Educating Seeds for Life Namuy Urekmeran Kusrenep Srenaway asi isua and Own Gastronomy, Nachak. It is recognized by the participants that the technological tool is useful for planning a community economy, but that the term business model is not used in the territory, but as a marketing process or community economy, with the aim to strengthen food sovereignty in the territory. Community economy processes that present and find the utility of by-products and incorporate them into new processes, in order to improve living conditions, bearing in mind the common vision and interest of building a society hand in hand with nature. | B | Universidad del Cauca |
| 16 | Yineth Lorena Correa Muñoz | Maximiliano Bueno López | Comparación computacional de motores AC y DC ante cambios hidrodinámicos en embarcaciones marítimas pesqueras | Correa, Yineth Lorena, Iván Felipe Muñoz, Francisco Franco Obando, y Maximiliano Bueno Lopez. 2023. “Comparación computacional de motores AC y DC ante cambios hidrodinámicos en embarcaciones marítimas pesqueras”. TecnoLógicas 26(56):e2442–e2442. doi: 10.22430/22565337.2442. | The objective of this article is to make a comparison in a computational environment between an alternating current motor and a direct current motor is made for dynamic variations in the propulsion of an artisanal fishing boat. Initially, the boat was simulated in the Maxsurf software to obtain the dynamic behaviors for pitching, rolling, yawing, and heave motions with wind and wave perturbations for a Pierson Moskowitz spectrum. Subsequently, the motors are selected and in Matlab/Simulink software and a torque behavior required by the vessel to act on the resistance presented in each dynamic motion is proposed. This allows for analyzing the required mechanical and electrical conditions, using the curves obtained in the simulation. Finally, it is concluded that taking into account the criteria of torque, power, speed, and current, the results obtained show that the DC motor is more efficient than the three-phase AC motor for artisanal fishing vessel applications. In addition, the two motors require greater effort to overcome the disturbance related to the rolling motion in the steady- state, while in the transient state the DC motor requires a higher starting torque and the AC motor presents oscillations, which are undesirable disturbances because they produce instability in the electrical system. Additionally, it is important to take into account the energy source that feeds the motors, which can be alternating current or direct current. | B | Universidad del Cauca |
| 17 | Diana Carolina López Anacona | Angela Roció Chantre Astaiza | Experiencia turística: propuesta metodológica para su diseño y aplicación | López Anacona, Diana Carolina, Luz Marina Ardila Barragán, and Ángela Rocío Chantre Astaíza. 2024. “Experiencia Turística: Propuesta Metodológica Para Su Diseño y Aplicación.” Turismo y Sociedad 36:155–83. doi: 10.18601/01207555.N36.06. | In tourism, much of the research on the tourist experience focused its emphasis on the economic nature since the proposal of Pine y Gilmore (2001), given the nature of this consumer product and the effective response to the needs of the tourist, ignoring fundamental actors, such as the territory and the host. After carrying out a descriptive, theoretical and documentary analysis of practices developed on the subject, along with field work with the owners of the Colonial and Republican Haciendas of Cauca, as well as the survey carried out with 144 visitors to the City of Popayán; The authors objective is to create a comprehensive methodological proposal for the design of the tourist experiences of the Colonial and Republican Haciendas of the Department of Cauca, in which it is linked to the territory, the tourist and the host, because it was identified in the results that the experiences are generated thanks to the socio-territorial (tourist-destination) and socio-cultural (tourist-host) interactions, this is how tourism contributes not only from the economic perspective but also from the personal, social, and environmental aspects; generating in each actor respect, protection and appreciation for the territories, traditions and societies. | C | Universidad del Cauca |
| 18 | Diego Fernando Rivera Vasquez | Javier Andrés Muñoz Chaves | Desarrollo de sistema informático para comunicación de personas sordas y oyentes implementando inteligencia artificial (Interprete lenguaje de señas colombiano) | Rivera Vásquez, Diego Fernando, Javier Andrés Muñoz Chaves, and Julio Eduardo Mejía Manzano. 2023. “Desarrollo de Sistema Informático Para Comunicación de Personas Sordas y Oyentes Implementando Inteligencia Artificial (Interprete Lenguaje de Señas Colombiano.” MUNDO FESC. | Sign language is the main communication mechanism used by deaf people to convey their ideas and interact in society; therefore, it is only possible to communicate with those who dominate it. Deaf people cannot have free social and cultural development in their environment. Therefore, this work focuses on proposing a methodology to create a virtual tool that allows deaf people to communicate directly with hearing people who do not know sign language, incorporating development methodologies (software engineering), software architectures, signal processing algorithms (audio, image, video) and artificial intelligence to obtain a software prototype that supports communication processes between deaf and hearing people. | C | Corporación Universitaria Comfacauca |
| 19 | Edwin Fernando Sierra Gaviria | Arnol Arias Hoyos | Evaluación de la eficiencia de un sistema de humedales construidos en la remoción de mercurio de efluentes mineros auríferos | Sierra Gaviria, Edwin Fernando, Alejandra Campos Gilón, Andrés Daza Ordoñez, Paula Coral, Lenny Gómez, César Fernández Morantes, y Arnol Arias Hoyos. 2024. “Evaluación de la eficiencia de un sistema de humedales construidos en la remoción de mercurio de efluentes mineros auríferos: Remoción de mercurio usando humedales construidos”. HIDROBIOLÓGICA. | Background. Mercury (Hg) contamination resulting from gold mining is an environmental problem caused by its ability to affect ecosystems and human health. Therefore, it is essential to propose alternatives focused on reducing the pollution produced mainly to water resources, due to the persistence and permanence of this heavy metal in the environment. Goals. This study evaluated the removal of Hg and the organic load of wastewater from a mining plant through a horizontal subsurface wetland flow system. Methods. The physicochemical characterization of the mining sewage was carried out, in addition, a system of three wetlands was designed and operated in which the Hydraulic Retention Time (HRT) and the plantation of Heliconia psittacorum were varied, then, parameters such as pH, OD, turbidity, BOD5, COD and Mercury were studied. An ANOVA statistical test with significance of 95% was applied. Results. The mining effluent showed COD and Hg concentrations of 197 mg O2/L and 0.0021 mg/L, respectively, values which are higher than those permitted by Colombian and EPA regulations. The wetlands evaluated showed removal efficiencies for turbidity, BOD5, COD and Hg higher than 98.44%, 93.10%, 71.52% and 91.03%, respectively. The statistical tests suggest that there is no significant difference in the TRH (p=0.361), therefore it is possible to operate the wetland system with 2 days of treatment. In addition, significant differences were found between the planted wetlands and those composed only by the support bed (p=0.039). Conclusions. Horizontal subsurface flow wetlands and Heliconia psittacorum are highly efficient in the removal of Hg from gold mining wastewater, consolidating as a promising technology for environmental bioremediation. | C | Corporación Universitaria Autónoma del Cauca |
| 20 | María Alejandra Orozco Torres | Elizabeth Roldán González | Ejercicio físico, estado funcional y calidad de vida en adultos Postcovid-19. | González, Elizabeth Roldán, María Alejandra Orozco Torres, María Luisa Hurtado Otero, Eduardo Sarzosa Varona, and Gonzalo Andrés Rosas Roldán. 2024. “Ejercicio Físico, Estado Funcional y Calidad de Vida En Adultos Postcovid-19.” Revista Perspectivas 9(1). doi: 10.22463/25909215.4493. | The sequelae reported after the acute period of covid 19 and its impact on quality of life pose an important challenge for multidisciplinary intervention programs; the practice of physical exercise and education in healthy lifestyles have proven to be an effective therapeutic strategy. Objective: to describe the effects of a physical exercise and health education program on functional status and quality of life in post-Covid 19 patients. Methodology. Quantitative approach study, quasi-experimental design, with pretest and posttest, 100 patients participated (50 of the non-experimental group and 50 of the experimental group), scales were applied such as; functional status post COVID 19 (Self-reported), Borg scale, EuroQol5d, 6-minute walk and vital signs were recorded. Results. The implemented program achieved in the patients an improvement in aspects related to cardiovascular resistance, pain perception and body composition in which positive changes with statistical significance were reported. | C | Fundación Universitaria María Cano |
| 21 | María Alejandra Pastas Villamartín | Claudia Patricia Acosta Astaiza | Parasitismo intestinal, una mirada desde la gestión del recurso hídrico en una zona rural del departamento del Cauca, Colombia | Pastas Villamarin, María Alejandra et al. 2023. “Parasitismo Intestinal, Una Mirada Desde La Gestión Del Recurso Hídrico En Una Zona Rural Del Departamento Del Cauca, Colombia.” Comunidad y Salud: 17–28. | Parasitic infections are one of the great public health challenges around the world. In the departme nt of Cauca, Colombia, previous studies point to protozoa as the most frequent intestinal parasites, whose transmission route is fecal-oral. The objective of this study was to analyze the presence of intestinal parasitism, considering the role of water resource management, in residents of the village of Las Huacas, Popayán municipality, between January and December 2022. A cross-sectional study was carried out. It included 101 people (between children and adults) and 25 pets, from which a sample of fecal matter was obtained and socioeconomic and environmental information was collected through a structured survey. The study also included the sampling and analysis of the water quality of the storage tank of the village water treatment system, for which physicochemical and microbiological parameters were determined. The presence of intestinal protozoa was found in the sampled population, with Blastocystis sp (60%) being the most frequent parasite, followed by Entamoeba coli (32.5%), Endolimax nana (17.5%) and Giardia lamblia (7,5%). The water samples had quality values that did not meet regulatory standards for drinking wa ter. A relationship between lack of water treatment and the presence of parasites in children was found (p=0,014). This study could contribute to knowledge about the role of water resources in rural areas, regarding intestinal parasites presence and the application of public deworming policies. | C | Universidad del Cauca |
| 22 | Alejandra Giraldo García | Luis Eduardo Ruano Ibarra | Investigación formativa como herramienta de enseñanza-aprendizaje en instituciones educativas | García, Alejandra G., y Luis Eduardo Ruano Ibarra. 2023. “Investigación formativa como herramienta de enseñanza-aprendizaje en instituciones educativas: Formative research as a teaching-learning tool in educational institutions”. LATAM Revista Latinoamericana de Ciencias Sociales y Humanidades 4(1):2368–2394. doi: 10.56712/latam.v4i1.423. | The objective of this study is to strengthen the capacities and skills related to formative research in institutional teachers, in order to promote the development of investigative skills in school children and adolescents in the City of Popayán. Pedagogy must incorporate didactic strategies that allow the production, appropriation and use of investigative skills, which allow applying innovative and significant changes in the classroom. In this sense, a thematic route was created for the appropriation of knowledge based on formative research as a teaching-learning tool, an ethnographic study of fundamental theory type with a qualitative approach was carried out, where 55 teachers from two educational institutions of the City participated. City of Popayán-Cauca, Colombia, with whom they intensified in techniques, skills and tools of formative research, this study shows formative research as a fundamental axis to teach research in the classroom, working on some pedagogical strategies typical of the formative research such as: project- oriented learning methodology (AOP), preparation of research monographs, theoretical essays with research schemes, the PBL method, problem-based learning, technical collaborations, use of APA standards, work in pairs, reviews with feedback constructive, feedback with self res, stimulate counterargumentation, criticism and debate and was based on action research as a social issue. In this study, the result is that innovation, the use of tics, database management, strengthening socio-affective skills, development of investigative skills and teacher-student interaction action, are an optimal way to teach to investigate. | D | Universidad Cooperativa de Colombia |
| 23 | Diana Carolina Agredo Gómez | Luis Eduardo Ruano Ibarra | La otra cara de la pandemia: la violencia contra la mujer. Consecuencias en la salud mental | Agredo Gómez, Diana Carolina, y Luis Eduardo Ruano Ibarra. 2023. “La otra cara de la pandemia: la violencia contra la mujer. Consecuencias en la salud mental: The other side of the pandemic: violence against women. Consequences on mental health”. LATAM Revista Latinoamericana de Ciencias Sociales y Humanidades 4(1):2639–2654. doi: 10.56712/latam.v4i1.443. | The study describes the consequences of violence against women on the mental health of women over 1 8 years of age during the covid-19 health contingency during the year 2020, in the department of Cauca, in Colombia. Methodologically it is oriented from the qualitative approach, with an ethnographic research design based on the development of body mapping, focus groups and observation scenarios, which were later analyzed in light of the grounded theory, supported by the qualitative software tool Atlas. Ti as support to the analysis process. As the main result of the investigation, four categories were identified: violence against women, psychological consequences of violence, covid-19 pandemic and consequences of the pandemic on mental health, which are interrelated, allowing the conclusion that in cases of crisis or world emergencies, it is women who are most affected by the consequences of these, both at the level of psychological, physical, emotional and economic health. | D | Universidad Cooperativa de Colombia |
| 24 | Erika Fernanda Pérez Fernández | Helmer Paz Orozco | Advances in Agroecological Integration and Prospects for Agroecology in Cattle Systems: A literature review | Pérez, Erika, Edgar Quintero, and Edwin Rivera. 2024. “Advances in Agroecological Integration and Prospects for Agroecology in Cattle Systems: A Literature Review: Status: In Press.” I+ T+ C- Research, Technology and Science 1(18). | The bovine livestock sector currently faces a crisis that encompasses productive, environmental, economic, and social aspects, thereby impacting food availability and human health. This crisis compels producers to modify and rethink their practices concerning the timely and proper management of livestock and the synergies linked to the production process, thereby promoting the transition towards more resilient and sustainable systems. The objective of this review article is to identify and analyze the impact of agroecological principles on animal health, the reduction of inputs for production, the optimization of the metabolic functioning of agricultural systems, the strengthening of resilience through diversification, the preservation of biodiversity, and social considerations in bovine livestock systems. For the development of this research, bibliographic databases such as Scopus, ScienceDirect, Springer Link, Taylor & Francis, and Google Scholar were utilized. These databases yielded variables such as agroecological management, diversity, practices, empirical and scientific knowledge, future perspectives, policies, research support, and community participation, among others. This enriched the search and analysis of information found under the ecological and productive parameters of bovine livestock. | D | Corporación Universitaria Comfacauca |
| 25 | Ingrid Daniela Peña Hoyos | Olver Bolivar Quijano Valencia | Presencia de los campesinos CIMA en el mercado agropecuario de Popayán | Daniela, Ingrid, Peña Hoyos, Olver Quijano Valencia, Yulieth Karina, and Mera Paz. n.d. “Presencia de Los Campesinos CIMA En El Mercado Agropecuario de Popayán.” Contextualizaciones Latinoamericanas 1(30). doi: 10.32870/CL.V1I30.8037. | Agroecology represents a productive alternative grounded in the preservation of traditional knowledge that identifies the essence and practices of certain rural populations. Through a quantitative-qualitative investigation supported by observations, conversations, and documentary review, information was gathered to understand the agroecological contributions of the members of the Committee of Integration of the Colombian Massif (CIMA), participants in the “Harvest Festival” market in the city of Popayán, Colombia. It was evident that CIMA’s agrosustainable practices revolve around conservation activities and primarily focus on the social dimension, through organizational processes fostering familiarity and trust between producers and consumers. Consequently, the market becomes a space for social interaction and learning that strengthens rural identity. It is concluded that the presence and dynamics of CIMA at the festival are not primarily aimed at generating economic benefits but rather at reclaiming and highlighting rural work, as well as reaffirming rural identity. | D | Universidad del Cauca |
| 26 | Iván Darío Londoño Ramon | Helder Yesid Castrillón Cobo | Estrategia deprototipado ágil para construir entendimiento compartido en la ingeniera de requisitos | Londoño, Iván, Vanessa Agredo Delgado, y Pablo Hernando Ruiz Melenje. 2023. “Estrategia de prototipado ágil para construir entendimiento compartido en la ingeniería de requisitos”. Revista EIA 1(17). https://revistas.unicomfacauca.edu.co/ojs/index.php/itc/article/view/403 | The strategy proposed in this paper addresses a critical challenge in requirements engineering: building a shared understanding among all stakeholders in software development. Shared understanding refers to the ability of people in a team to have a common and consistent understanding of the requirements that the system will have, which is essential for effective collaboration. The construction of this strategy was done using Situational Method Engineering (SME), which allowed to obtain, at the end of the realization of each of its activities, a set of phases, with their respective activities and tasks, which seek the construction of shared understanding through the realization of agile prototyping. The use of prototypes allows to provide a visual and tangible representation of the system requirements, which facilitates communication and feedback among stakeholders. In this sense, this article shows the use of SME for the final construction of the strategy, which consists of several phases, including planning, requirements identification and analysis, non-functional prototyping, requirements management, functional prototyping and socialization. These phases are designed to strengthen communication, promote collaboration and ensure a solid shared understanding throughout the software development process. | D | Corporación Universitaria Comfacauca |
| 27 | Joan Sebastián Potosi Hoyos | José Fernando Grass Ramírez | Análisis de redes en productores de coco de la Costa Pacífica del Cauca | Potosi Hoyos, Joan Sebastián, y José Fernando Grass Ramírez. 2023. “Análisis de redes en productores de coco de la Costa Pacífica del Cauca”. Estudios Sociales. Revista de Alimentación Contemporánea y Desarrollo Regional 33(62). | Objective: to analyze the structure of social, technical and commercial relationships established between coconut producers inhabiting the Pacific coast of the Cauca Department in Colombia. Methodology: The Social Network Analysis methodology was used. This methodology studies the structure and dynamics of the relationships established among actors, using empirical data and analysis through graph diagrams and indicators. A survey was applied to 676 producers, and the information was analyzed based on the indicators of density, centralization, in-degree centrality and Modularity Class. Results: the indicator of density is low in all analyzed networks, which means incipient levels of social capital and cohesion. The resulting networks (with the exception of the technical network of the municipality of Timbiquí) are decentralized, which means that there are several actors that are an important source of consultation. The clusters are configured based on geographic conditions and around recognized actors given their trajectory and experience. Limitations: lack of evidence to support the relationship between social capital and development, lack of information and high degree of abstraction. Conclusions: Low levels of social capital around the activity were found, which result in information associated with the coconut production chain not flowing easily between actors and communities. Geographic conditions fragment existing relationships between producers, forming different clusters that hardly communicate with each other. The relevant actors identified are producers with extensive experience in the activity, collectors and cooperatives. | D | Universidad del Cauca |
| 28 | María Camila Rodríguez Castillo | Luis Eduardo Ruano Ibarra | Investigación formativa en el aula: roles, percepciones e innovaciones | Rodríguez Castillo, María Camila, y Luis Eduardo Ruano Ibarra. 2023. “Investigación formativa en el aula: roles, percepciones e innovaciones”. Ciencia Latina Revista Científica Multidisciplinar 7(1):7686–7707. doi: 10.37811/CL_RCM.V7I1.4999. | The article reflects on the roles and perceptions of students and teachers, and their contribution to the implementation of formative research as an innovative strategy to build knowledge in the classroom. The methodology used was qualitative, based on an ethnographic method based on group techniques such as co-learning workshops and discussion groups, which were strengthened from processes of observation and systematization of experiences, analyzed in the light of the grounded theory method. As a result of the process, three major categories were identified: student and teacher roles in the teaching-learning process, perception of each actor on formative research in the classroom, and educational innovations. From them, it was concluded that, although the role of the student consists of being active and proactive in the learning exercise, the role of the teacher is key, since they are postulated as the backbone of the educational process. Likewise, the limiting perceptions of the actors on formative research prior to the intervention are key to conceive it not as an end in itself, but as an innovative way to carry out the teaching-learning process. | D | Universidad Cooperativa de Colombia |
| 29 | Nelson Eduardo Guevara Muñoz | Carlos Felipe Rengifo Rodas | Diseño de un dispositivo electrónico portable y de bajo costo para la estimación de las fuerzas de reacción que se generan durante la marcha a partir del contacto entre los pies y el suelo | Muñoz Guevara, Nelson Eduardo, Yamir Hernando Muñoz Bolaños, Pablo Eduardo Caicedo Rodríguez, Wilson Alexander Arévalo Sierra, y Luis Eduardo Cheu Rodríguez. 2024. “Diseño de un dispositivo electrónico portable y de bajo costo para la estimación de las fuerzas de reacción que se generan durante la marcha a partir del contacto entre los pies y el suelo”. Revista Vía Innova. | This paper presents a low-cost electronic system designed to estimate ground reaction forces (GRF). The system consists of one master node and two slave nodes. The master node sends instructions to the slave nodes, and each slave node comprises two electronic boards that sample and store data from two force insoles. These insoles are equipped with 14 piezo-resistive FlexiForce A301 sensors (FSR). To begin capturing movements, the slave nodes are affixed to the feet of each participant. Subsequently, the start command is transmitted through the master node, which is connected to the USB port of a personal computer (PC). Once the walking session is completed, the information obtained by the slave nodes can be downloaded by accessing the Access Point generated by these devices through Wi-Fi communication. The proposed system for GRF estimation was validated using force platforms (BTS Bioengineering P6000, Italy), giving an error equal to 15.04%. | D | Universidad del Cauca |
| 30 | Raul Fernando Sanchez Aguilar | Javier Andrés Muñoz Chaves | Diseño de un prototipo para la evaluación cualitativa de la biodegradabilidad de residuos poliméricos agroindustriales: Estudio de caso en “totumo” (Crescentia cujete) | Sánchez, Raúl, Yineer Castillo, y Javier Andrés Muñoz. s/f. “Design of a prototype for the qualitative assessment of the biodegradability of agro-industrial polymer wastes: Case study on ‘totumo’ (Crescentia cujete) | I+ T+ C- Research, Technology and Science”. Investigación, Tecnología y Ciencia. | This article addresses the growing concern for industrial waste management and the evaluation of biodegradability of materials, focusing on cattail (Crescentia cujete). An automated system for monitoring gases (CO and CO2) and temperature was developed to assess biodegradability. Over a period of 20 days, CO2 and CO emissions were recorded and correlated with fungal growth in the totumo samples. Peak CO2 emission was observed at 76 hours, indicating microbial activity. In addition, particle size and thermal treatments were found to affect biodegradability, with smaller sizes and higher temperatures being beneficial. Despite its semi-crystalline cellulose content, which presents some resistance, totumo is estimated to have a degradation rate similar to other non-timber lignocellulosic residues such as corn, sugarcane, banana, and coffee. This suggests that totumo has the potential to produce biodegradable polymers and biogas, contributing to a more sustainable management of agroindustrial wastes. | D | Corporación Universitaria Comfacauca |
| 31 | Stephania Aguirre Castaño | María Cristina Gallego Ropero | Los colibríes y su importancia en la conservación de bosques tropicales | Aguirre Castaño, Stephania, Cristian Camilo Vidal Maldonado, y María Cristina Gallego Ropero. 2024. “Los colibríes y su importancia en la conservación de bosques tropicales”. Journal de Ciencia e Ingeniería. | Hummingbirds are characterized as birds that feed mainly on nectar and are exclusive to the American continent. These trochilids play an important role in ecosystems since they are responsible for the pollination of more than 100 species of angiosperms. The functional traits of these birds are closely related to the plants they visit, forming plant-colibri interactions that favor ecological dynamics in the pollination process, however, these interactions can be affected by the transformations of ecosystems due to changes in land use that alternative forest cover by areas for livestock and crops, including the department of Cauca, a site that has undergone major transformations over the years. | D | Universidad del Cauca |
| 32 | Victor Manuel Astudillo Delgado | Javier Andrés Muñoz Chaves | Aprendizaje profundo para la evaluación del ritmo cardiaco: Evaluación de modelos CNN en datos de ECG | Astudillo Delgado, Víctor Manuel, David Armando Revelo Luna, y Javier Andrés Muñoz Chaves. 2023. “Deep Learning for Cardiac Rhythm Assessment: Evaluating CNN Models on ECG Data.” Investigación, Tecnología y Ciencia 1(17). https://revistas.unicomfacauca.edu.co/ojs/index.php/itc/article/view/404 | The electrocardiogram (ECG) is a technique for detecting heart rhythm problems and evaluating the cardiovascular system. Traditionally, physicians relied on manual observations, but this had limitations in terms of accuracy. In this research, convolutional neural networks were used for the identification of cardiac arrhythmias in patients. Three different models were trained, using architectures: VGG16 and ResNet-50, as well as one proposed by the researchers. All models were trained with the dataset (PhysioNet MIT-BIH), with the same amount of data and configuration. The evaluation of the models was performed using the following metrics: precision, recall, F1Score and accuracy. The VGG16 model proved to be the most effective, achieving an accuracy of 98.8%. The results of the research may lead to improved detection of cardiac arrhythmias, which could lead to more accurate diagnoses and better cardiovascular health care for patients. | D | Corporación Universitaria Comfacauca |
| 33 | Yina Paola Ceron Meneses | José Fernando Grass Ramírez | Caracterización física, química, térmica y mecánica de fibras de coco de la Costa Pacífica del Cauca con potencial como refuerzo de materiales compuestos de matriz polimérica | Meneses, Yina Paola Ceron, Pedro Alban Bolaños, José Fernando Grass Ramírez, and Ricardo Camacho Muñoz. 2024. “Caracterización Física, Química, Térmica y Mecánica de Fibras de Coco de La Costa Pacífica Del Cauca Con Potencial Como Refuerzo de Materiales Compuestos de Matriz Polimérica.” Biotecnología En El Sector Agropecuario y Agroindustrial 22(2):30–42. doi: 10.18684/RBSAA.V22.N2.2024.2291. | Coconut fiber is a by-product that is not properly managed, generating envi-ronmental and economic consequences, because its accumulation disrupts ecosystem dynamics and productive activities. One of the strategies develo-ped to mitigate its impact is the incorporation of its fibers as reinforcement in composite materials. In this context, the fibers of three varieties of coconut from the Pacific Coast of the Cauca were studied, with the aim of evaluating their feasibility as a reinforcement matrix through stress resistance techni-ques, spectroscopy (FTIR), water adsorption, thermogravimetric (tga), granu-lometry and aspect ratio, finding that the highest values in voltage resistance, elasticity module and elongation at the breakpoint were 302,68 MPa, 5,82 and 28,18 % respectively. In spectroscopy, spikes between 3340 and 897 cm-1 were observed indicating the presence of cellulose, lignin, cherries and hemicellulose. Water adsorption for the 3 samples was between 98 and 104 % without significant differences. In tga, two stages of degradation were de-tected, the initial one with peak peaks for the three varieties between 44,47 °C (A1), 50,62 °C(A2) and 39,50 °C/A3, in a range of 24 to 125 °C, then the peak was between 190 °C to 390 °C. In this range there was a weight loss of approximately 20 %. The aspect ratio of the three varieties between thorns 40 and 60 was greater than 10, indicating that the fiber is suitable for use as reinforcement material in composite materials. In conclusion, the three fibers presented excellent properties and met the conditions of thermal stability and mechanical resistance which makes them suitable for implementation as a reinforce-ment matrix in the manufacture of composite materials. | D | Universidad del Cauca |
