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Tesis Título Profesional
Toxicidad aguda del extracto hidroetanólico de Tynantus panurensis (clavo huasca) en Mus musculus cepa Balb C
(Universidad Nacional de la Amazonía Peruana, 2025) Tenazoa Gomez, Jacob Daniel; Nuñez Sanchez, Brian Lambert; Sosa Amay, Frida Enriqueta
Acceso Abierto
The Amazon forests are a source of bioactive molecules to be discovered, there are some scientific studies and ethnic knowledge of their use; but the toxicological potential of the species is not known. To determine the acute toxicity of the hydroethanolic extract of T. panurensis (huasca clove) in the biological model M. musculus Balb C strain. The study was experimental, which associates the clinical, biochemical and anatomo-histological parameters in the biological model Mus musculus. Balb C strain at doses of 25, 200 and 2000 mg/kg, proposed for the study of plant extracts of roots, bark and leaves. The mortality rate for hydroethanolic extracts of root, bark and leaves at the maximum evaluated dose of 2000 mg/kg m.c. was 0%; the body mass differential during the evaluation period was for root -0.268 to -3.55 g; for bark from 1.94 to -4.66 g and for leaves from -1.25 to 3.5, unlike the control group that showed an increase of 4.9 g. Irritability, passivity, sedation and in some cases increased respiratory frequency or amplitude were observed. And the Glucose parameters for the dose of 2000 mg/kg for the root, bark and leaves exceeded the upper limit 175,600; 180.6 and 160.4 mg/ dL respectively. Some GPT and FA values were also found to be above the range. the dose of 25 mg/kg in the histological sections: 39 normal, 27 with vascular alteration of different degrees and 9 with tissue alteration. In the microscopy of the organs at a dose of 200 mg/kg, 29 normal histological sections were observed, 33 with vascular alteration of different degrees and 13 with tissue alteration. At the dose of 2000 mg/kg, 26 normal histological sections were observed, 36 with vascular alteration of different degrees and 13 with tissue alteration. It was concluded that according to the classification of the toxicity of substances and preparations, the LD50 is above 2000 mg/kg m.c. Therefore the extracts fall into the category of harmless.
Tesis Título Profesional
Factores asociados a la comprensión de textos escritos en inglés en estudiantes de quinto grado de secundaria en instituciones educativas públicas de San Juan Bautista 2022
(Universidad Nacional de la Amazonía Peruana, 2025) Lage Trigoso, Anita Isabel; Guzmán Cornejo, Edgar
Acceso Abierto
This research main objective was to explain the influence of factors associated to reading comprehension in English in fifth grade students at secondary public schools of San Juan Bautista district 2022. It was of an explanatory type with field study, contemporary transectional and multivariate designs. The population was made up of 1600 students with a stratified sample with a proportional allocation of 310. The referential population was made up of 1600 parents with a sample of 204; and 23 teachers, with a sample of 17. The data collection tools were valid and reliable written test and a questionnaire of factors associated reading comprehension. Results show that, in the variables of the study population, the Rho was 0.086, evidencing that there is no correlation and it was not necessary to perform the linear regression analysis. In the referential population of parents, the Rho of personal factors and text comprehension was 0.070, while that of sociocultural factors was 0.095. In teachers, the Rho of personal factors and text comprehension was -0.012, and 0.071 of academic factors, showing that there were no correlations and it was not necessary to perform the linear regression analysis. Therefore, there is no influence of the associated factors in reading comprehension in English nor of each factor.
Tesis Título Profesional
Impacto psicosocial de la estética dental en pacientes según sexo, de dos centros de salud, Iquitos 2025
(Universidad Nacional de la Amazonía Peruana, 2025) Alva Salas, Liliana; Flores Reátegui, Patrix Jahette; Chávez Paredes, Alejandro; Carranza Del Aguila, Raúl
Acceso Abierto
The main objective of this research was to determine if there are significant differences in the psychosocial impact of dental aesthetics in patients, according to sex, treated in two health centers, Iquitos 2025. Opting for a quantitative, non-experimental and comparative descriptive study, a sample of 172 patients was taken and the Questionnaire on the Psychosocial Impact of Dental Aesthetics (PIDAQ) was applied. Among the results, no statistically significant relationship was found between age and the psychosocial impact of dental aesthetics, being the association very weak and positive; however, there are significant differences in the total psychosocial impact according to sex, where sex influences the overall level of impact. No significant differences were observed in the psychosocial impact between the health centers evaluated, so the perception does not vary according to the center, and when analyzing the different dimensions (dental self-confidence, social impact, psychological impact and concern for aesthetics), there were also no significant differences between sexes, although the social impact showed a trend close to significance. They concluded that the majority of participants reported low or moderate impact, with these levels predominating overall. However, women reported a higher proportion of moderate or high impact compared to men. This overall difference by sex was significant in both centers evaluated in 2025.
Tesis Título Profesional
Factores que influyen en la deserción escolar en estudiantes del nivel primario en instituciones educativas de Iquitos 2025
(Universidad Nacional de la Amazonía Peruana, 2025) Linares Navarro, Mario Sander; Díaz Pérez, Rolando
Acceso Abierto
The main purpose of this research was to analyze how economic, social, and educational factors affect school dropout among primary school students in public educational institutions in the district of Iquitos in 2025. The study was conducted within a quantitative approach, employing a correlational–causal, non experimental, and cross-sectional design. The sample consisted of 165 students, of whom 116 were selected through proportional stratified random sampling. To collect data, two questionnaires were applied: one to assess economic, social, and educational factors, and another to measure school dropout. Descriptive results showed that 46% of the students had a medium level of school dropout, 29% a low level, and 25% a high level. In the inferential analysis, the Spearman correlation test revealed that economic factors (ρ = 0,353; p < 0,001) and social factors (ρ = 0,336; p < 0,001) had a significant impact on school dropout, while educational factors did not show a statistically significant relationship (ρ = 0,.242; p < 0,001). Furthermore, the multiple linear regression model explained only 8,5% of the variability in school dropout (R² = 0,085), suggesting that other factors not considered in this study also influence dropout. In conclusion, school dropout at the primary level in Iquitos was at a medium level and was related to unfavorable economic and social conditions, highlighting the need to implement comprehensive public policies to address these issues.
Tesis Título Profesional
Nivel de conocimiento y actitud sobre la hipomineralización molar incisivo (HMI) en cirujanos dentistas del Ministerio de Salud – Maynas ciudad 2025
(Universidad Nacional de la Amazonía Peruana, 2025) Franco Pereira, Astrid Geraldine; Rengifo Chuquipiondo, Andrea Mabel; Sandi Poclín, Richard; Panduro Del Águila, Myriam Betty
Acceso Abierto
Objective: To assess the level of knowledge and attitude regarding Molar Incisor Hypomineralization (MIH) among dentists working in the Ministry of Health (MINSA) – Maynas city, 2025. Materials and Methods: A quantitative, descriptive, cross-sectional study was conducted with a census sample of 100 dentists from MINSA health centers in Maynas. A validated questionnaire (Aiken’s V = 0.70; KR-20 = 0.73) was used to measure knowledge (diagnosis and treatment dimensions) and professional attitude using a Likert scale. Data were analyzed using SPSS v22, with descriptive statistics and Chi-square tests (p < 0.05). Results: Most dentists (64 %) showed a moderate level of knowledge, 35 % demonstrated a good level, and 1 % a deficient level. Regarding attitude, 46 % showed a very positive and 49 % a positive attitude. No significant association was found between knowledge and attitude (χ² = 4.377; p = 0.357). Conclusion: Dentists from MINSA-Maynas generally display an intermediate level of knowledge but a highly positive attitude toward MIH diagnosis and management.