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Estilos de autoevaluación y rasgos de ansiedad en un grupo de estudiantes entre los 15 y 17 años de una institución educativa en la ciudad de Cali
(Universidad Santiago de Cali, 2022) Ramírez Gutiérrez, Laura Daniel; Benavides Reyes, Daniel Jesús; López Santander, Rodrigo (Director)
Self-evaluation as a natural and innate factor is of foremost importance insofar as it is based on positive and negative parameters, which determine the genesis or not of anxiety traits. The objective of this study was to analyze the self-evaluation of anxiety traits in a group of students between 15 and 17 years old from an educational institution in the city of Cali. For this purpose, a sample of 23 eleventh grade students were used, a mixed method with a sequential explanatory design (DEXPLIS) and a semi-structured interview and the Zung anxiety test were applied, and data were analyzed through SPSS and Atlas Ti. The results indicate that there are traits of anxiety (mild and intense) in 81.62% of the population, in addition, a high frequency of the use of negative self-evaluations was identified in relation to anxiety-generating situations, such as; tremendism and comfort, condemnation and success, etc. In conclusion, it was found that most of the negative self-evaluation styles used inappropriately generate anxious symptoms, which confirms the existence of a relationship between anxiety levels and the use of different self-evaluation styles, which in turn leads to the conclusion that the higher the indexes of negative self-evaluation, the higher the levels of anxiety present.
Evaluación de la capacidad descontaminante in-vitro de las cáscaras de chontaduro en aguas contaminadas por ibuprofeno
(Editorial Universidad Santiago de Cali, 2024) Garcia Becerra, Betty Eliana; Urbano Montero, Marylin; Ciro, Yhors Alexander
Currently, activated carbon is one of the most widely used adsorbent materials for environmental remediation purposes, especially for treating water contaminated with pharmaceuticals. In this regard, one of the main focuses is its production from renewable raw materials, such as residual plant matter, which in many cases is underutilized. In order to contribute to this approach, this study obtained activated carbon from peach palm (Bactris gasipaes) shells, a locally abundant waste product, through calcination using an acidic chemical agent (H3PO4) and a basic chemical agent (NaOH). Subsequently, the materials obtained were characterized through infrared spectroscopy, Boehm titration, and zero point of charge analysis. Furthermore, their in-vitro adsorption capacity for ibuprofen in aqueous solutions at neutral, acidic, and basic pH values was evaluated. The results obtained confirmed the successful production of activated carbon using both proposed methods, with more than 4000 mmol of surface functional groups per gram of material. Additionally, functional groups such as carboxylic acids, phenols, lactones, and amines were identified on the surface of the adsorbent materials. Finally, it was observed that these functional groups could be charged over a wide pH range, enhancing the removal of ibuprofen from aqueous media, reaching up to approximately 5 mg of ibuprofen per gram of activated carbon. This study highlights the potential of chontaduro shells as an alternative raw material for the production of adsorbent materials capable of removing ibuprofen from aqueous environments
Degradación del Fluconazol mediante Foto-Fenton: Aplicaciones en la agroindustria
(Universidad Santiago de Cali, 2023) Martínez Sarria, Nicoll Andrea; Obeso Hurtado, Evelin Tatiana; Castro Narváez, Sandra Patricia (Directora)
Fluconazole (FCZ) is one of the most widely used fungicides to combat plant pathogens which has a Fluconazole (FCZ) is one of the most widely used fungicides to combat plant pathogens which has a low degradation rate making it an emerging contaminant. The monitoring of FCZ photooxidation by UV-vis spectroscopy under different conditions such as pH, wavelength, contaminant vs. hydrogen peroxide ratio (FCZ:H2O2) and concentration of ions such as iron (II), sulfate, carbonate and phosphate establish pseudo first order kinetics by graphical method with rate constant between 0.1796 to 0.0604 min-1 and half-life between 2.41 and 11.40 min, depending on pH, FCZ:H2O2 ratio and type of ion present in the sample. The addition of carbonate (200 mg/L) to the FCZ sample evidenced a removal rate higher than 99% in 25min at pH 2.0 and a 1:4 FCZ:H2O2 ratio. Gas chromatographic studies coupled to mass detector (GC-MS) establish the obtaining of low molecular weight by-products.
Educación por competencias: una estrategia imprescindible para el siglo XXI
(Universidad Santiago de Cali, 2024-08-08) Mina Carabali, Laura Alejandra; Guatuzmal Salcedo, Daniela; Garcia, Alba Yulieth (Directora)
In modern times, education is in a constant challenge of adaptation and evolution. This article analyzes the importance of implementing the competency-based approach in the contemporary education systems of the 20th century. The authors argue that, in an increasingly globalized and technological world, education must go beyond the mere transmission of theoretical knowledge, they emphasize that the competency-based approach is focused on the development of practical skills, attitudes and values that are essential for personal and professional life, thus becoming an approach with a significant impact on student motivation and performance due to its orientation towards more relevant, personalized and applicable learning for the 20th century. The competency-based approach also redefines the role of educators. Teachers become facilitators of learning, guiding students in the development of their competencies through active and participatory methodologies. This not only enriches the educational experience, but also increases the motivation and commitment of both students and teachers. The way this approach prepares students for the labor market. Instead of focusing solely on specific technical knowledge, the competency-based approach develops transferable skills such as communication, teamwork, critical thinking and problem solving. These competencies are highly valued by employers and are essential for success in any professional career. However, the implementation of the competency based approach is not without challenges. It requires a significant restructuring of curricula, teaching methods and evaluation. It also implies a cultural change in educational institutions, where all actors, from administrators to teachers and students, must be committed to this new paradigm.
Las consecuencias que trae el uso excesivo de las tecnologías y los dispositivos electrónicos
(Universidad Santiago de Cali, 2024-08-29) Salazar Echeverry, Johandry Vanessa; Benavides Meza, Yasmin Liliana
This research aims to inform families, educators, and other interested parties about the consequences of excessive use of technology and electronic devices on the development of children aged 1 to 6 years. In today's society, it is evident that parents and caregivers often use these technologies as a distraction tool without any educational purpose, overlooking the negative impacts on children's development. Through a bibliographic or documentary review, the study seeks to understand why families resort to giving children electronic devices and, more importantly, the consequences this practice has on their development. The goal of this research is to raise awareness among parents, educators, and even children themselves about the significant impact of excessive technology use. Additionally, the study aims to gather research documents that provide 3 tools to prevent children from developing harmful behaviors such as addiction, aggression, or even self-harm.