Examinando por Autor "Córdova Rojas, Lizbeth Maribel"

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    Actividad antimicrobiana in vitro del extracto de hojas de “toronjil” (melissa officinalis) frente a escherichia coli y klebsiella pneumoniae
    (Universidad Nacional Intercultural Fabiola Salazar Leguía de Bagua, 2025-09-08) Castañeda Terrones, Maryori Sarain; Córdova Rojas, Lizbeth Maribel
    Dado el incremento de la resistencia antimicrobiana y la necesidad de buscar nuevas alternativas terapéuticas, la presente tesis buscó aportar al conocimiento científico en los ámbitos de la medicina herbal y la microbiología. El propósito de la investigación fue determinar el efecto antimicrobiano del extracto de hojas de Melissa officinalis contra cepas de Escherichia coli y Klebsiella pneumoniae, mediante el método difusión en pocillos en agar a concentraciones de 100, 200, 300 y 400 mg/mL, además se comparó con el disco estándar de gentamicina (10 µg). Los resultados de la investigación demostraron el efecto inhibitorio del “toronjil” contra cepas de Escherichia coli y Klebsiella pneumoniae con halos de inhibición de 14.2 y 12.6 mm respectivamente, y una concentración mínima inhibitoria (CMI) que oscilaron entre 6.25 a 25 mg/mL. Se concluyó que el extracto de Melissa officinalis presentó efecto antimicrobiano frente a cepas bacterias estudiadas, dicha evidencia avala el uso de esta planta en el campo de la fitoterapia y la lucha contra las infecciones bacterianas, además podría llevar al desarrollo de nuevos agentes antimicrobianos a partir de compuestos naturales.
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    Ítem
    Acceso Abierto
    Mental health of university students when returning to face-to-face classes: A cross-sectional study
    (Multidisciplinary Digital Publishing Institute, 2023-05-23) Estrada Araoz, Edwin Gustavo; Bautista Quispe, Judith Annie; Córdova Rojas, Lizbeth Maribel; Ticona Chayña, Euclides; Mamani Coaquira, Humberto; Huaman Tomanguilla, Jhony
    Depression, anxiety and stress are multifactorial affective disorders that could manifest through a set of symptoms, both physical and psychological, that affect the quality of life and performance of people who suffer from them. In this sense, the present research had the objective of evaluating depression, anxiety and stress in students of the Faculty of Engineering of a Peruvian public university when returning to face-to-face classes. The research was developed under a quantitative approach and is of a non-experimental design of the descriptive cross-sectional type. The sample consisted of 244 students who responded to the Depression, Anxiety and Stress Scale, an instrument with adequate psychometric properties. According to the results, the students presented low levels of depression and anxiety. However, they showed moderate levels of stress. On the other hand, it was found out that the three variables were directly and significantly related. In the same way, it was found that there were statistically significant differences regarding the levels of depression, anxiety and stress related to gender, age group, family responsibilities and professional career. Finally, it was concluded that there were symptoms of depression, anxiety and stress in students of the Faculty of Engineering of a Peruvian public university when returning to face-to-face classes.