https://hdl.handle.net/20.500.12724/20570 2026-05-13T08:37:56Z https://hdl.handle.net/20.500.12724/24466 Academic Self-Efficacy in Peruvian University Students through an Astrobiological Stratospheric Balloon Project Chon Torres, Octavio Alfonso; Ramos Ramirez, Julio César; Choy Vessoni, Rosana Aurora This study investigated the effect of a stratospheric balloon project focused on astrobiology on the academic self-efficacy of university students in Peru. Using the Perceived Academic Self-Efficacy Scale, 154 students were evaluated, divided into experimental and control groups. The project offered practical experience in interdisciplinary research, linking astrobiology with other disciplines. The results showed a significant increase in academic self-efficacy, both in direct participants and non-participants, although it was more notable in the former. This increase in self-efficacy suggests that active participation in practical projects can strengthen students’ beliefs about their academic abilities. Additionally, it was observed that the project experience was equally effective in improving self-efficacy in students from both private and public universities, with no significant differences based on gender. 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.12724/24468 La reacción colonial ante la rebelión de Túpac Amaru II en los manuales escolares de Perú (2019- 2023) Parodi Revoredo, Daniel; Uzcátegui Pacheco, Ramón Alexander El artículo analiza cómo los manuales escolares peruanos de educación secundaria (2019-2023) representan la reacción colonial a la rebelión de Túpac Amaru II. El estudio revela que los manuales muestran la violencia extrema, pero también el carácter reformista de la respuesta colonial. Al mismo tiempo, presentan la derrota de la rebelión como un alejamiento de los indígenas del proceso independentista, a pesar de reconocer su participación en él. Se observa una narrativa lineal y aparentemente neutral, aunque con espacio para la interpretación crítica en el aula a través de referencias a la historiografía. Finalmente, el artículo examina la construcción de la memoria histórica en torno a este evento en el contexto del Bicentenario del Perú. 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.12724/24459 Assessment of tannery effluents quality treated by electrocoagulation and ozonation: Physicochemical and ecotoxicological characterization Buleje Del Carpio, Robert; Aguilar Ascón, Edwar; Marrufo Saldaña, Liliana; Barra Hinojosa, Julio Tannery effluents are characterized by their high toxicity and complex pollutant load, posing significant risks to aquatic ecosystems. Although conventional treatment processes often achieve regulatory standards for pollutant concentrations, they do not necessarily guarantee the reduction of effluent toxicity. This study aimed to evaluate the quality of tannery effluents treated by electrocoagulation (EC) and the combined electrocoagulation-ozonation (ECO) process, while analyzing the associated toxicity reduction, in order to determine the suitability of these technologies for application and ensure environmental protection of receiving water bodies. For this purpose, tannery wastewater was treated sequentially using an electrocoagulation reactor followed by an ozonation system, yielding three sample types: raw (C), electrocoagulation-treated (EC), and electrocoagulation-ozonation treated (ECO). Physicochemical parameters were measured, toxicity was assessed through bioassays with Lactuca sativa and Eisenia fetida, and chemical changes were analyzed using FTIR spectroscopy.EC achieved 96.4% removal of total suspended solids (TSS), 30.9% of chemical oxygen demand (COD), and 99% of chromium, while ozonation further removed 10% of COD and 99% of sulfides. Toxicity assays indicated a reduction from 23.89 toxicity units (TUs) in the raw effluent to 8.32 TUs after EC and 11.12 TUs after ECO. The slight increase in toxicity after ozonation was associated with elevated ammoniacal nitrogen levels and the formation of new functional groups, as evidenced by the FTIR spectrum. Despite significant pollutant removal, the results highlight that treated effluents may still present residual toxicity, emphasizing the need for complementary treatment strategies to achieve true environmental safety. 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.12724/24460 ¿Solo los humanos racionales poseen dignidad? Ibáñez, Franklin; Orozco Contreras, Richard Antonio La teoría moral kantiana sigue siendo, de forma directa o indirecta, aquella que ofrece el mayor sustento a la noción de dignidad, piedra angular para los sistemas morales y legales contemporáneos. Kant afirma que aquella pertenece a todos los seres humanos en cuanto fines en sí mismos. Sin embargo, buena parte de los argumentos que muestra parecen directamente dedicados a justificar la dignidad solo de “los sujetos racionales”. De allí, podría deducirse que tal vez no todos los seres humanos encajan, pues algunos parecen carecer de racionalidad: concretamente, aquellos con discapacidad cognitiva radical. El artículo explora este problema en los textos kantianos para proponer que, finalmente, todos los humanos poseen dignidad en tanto forman parte de la única especie moral o interpelada por la razón práctica. 2025-01-01T00:00:00Z