RESUMO
Objective: To evaluate the pedagogical skills of third-year nursing students at Yangzhou University (China). Methods: A multisite quasi-experimental design was used in this study. Fifty-five participants were selected by convenience sampling. The Objective Structured Teaching Evaluation (OSTE) scale was used to assess teaching skills. The evaluation included four different stages: Teaching Background Analysis (E1), Lesson Plan Presentation (E2), Mock Class (E3) and Teaching Reflection (E4). Prior to the assessment, the teachers assigned homework to the students to complete at the four stations. Results: Fifty-five nursing students with an average age of 21.3±0.7 years participated in the study, with a predominance of female students (78.2%). The highest mean score was achieved in E1 (83.1), followed by E2 and E3 (82.5 and 82.3 respectively), while the lowest mean score was found in E4 (79.6). In E3, instructors gave lower scores for class organisation, class characteristics and overall performance compared to the self-reported scores of the standardised students (p<0.05). More than 80% of the students strongly agreed and recommended the OSTE as the primary method for assessing teaching skills in the classroom. Conclusion: Deficits in teaching skills were identified in the participating students; this information will allow specific interventions to improve the situation. The OSTE instrument was a useful method for assessing the pedagogical skills of undergraduate nursing students.
Assuntos
Estudantes de Enfermagem , Ensino , Humanos , Feminino , Masculino , Adulto Jovem , China , Avaliação Educacional/métodos , Bacharelado em Enfermagem/métodos , Bacharelado em Enfermagem/organização & administraçãoRESUMO
Objective.To evaluate the pedagogical skills of third-year nursing students at Yangzhou University (China). Methods. A multisite quasi-experimental design was used in this study. Fifty-five participants were selected by convenience sampling. The Objective Structured Teaching Evaluation (OSTE) scale was used to assess teaching skills. The evaluation included four different stages: Teaching Background Analysis (E1), Lesson Plan Presentation (E2), Original article Mock Class (E3) and Teaching Reflection (E4). Prior to the assessment, the teachers assigned homework to the students to complete at the four stations. Results. Fifty-five nursing students with an average age of 21.3±0.7 years participated in the study, with a predominance of female students (78.2%). The highest mean score was achieved in E1 (83.1), followed by E2 and E3 (82.5 and 82.3 respectively), while the lowest mean score was found in E4 (79.6). In E3, instructors gave lower scores for class organisation, class characteristics and overall performance compared to the self-reported scores of the standardised students (p<0.05). More than 80% of the students strongly agreed and recommended the OSTE as the primary method for assessing teaching skills in the classroom.Conclusion. Deficits in teaching skills were identified in the participating students; this information will allow specific interventions to improve the situation. The OSTE instrument was a useful method for assessing the pedagogical skills of undergraduate nursing students.
Objetivo. Evaluar las habilidades pedagógicas de los estudiantes de tercer curso de enfermería de la Universidad de Yangzhou (China). Métodos. En este estudio se empleó un diseño cuasi-experimental multisitio. Por muestreo por conveniencia se seleccionaron 55 participantes. Se empleó la escala Examen Objetivo Estructurado de la enseñanza(OSTE- Objective Structured Teaching Evaluation, en inglés) para evaluar las habilidades pedagógicas. La evaluación abarcó cuatro estaciones distintas: Análisis de los antecedentes de la enseñanza (E1), Presentación del plan de la lección (E2), Clase simulada (E3) y Reflexión sobre la enseñanza (E4). Antes de la evaluación, los instructores asignaron tareas a los estudiantes que debían realizar en las cuatro estaciones. Resultados. Participaron en la investigación 55 estudiantes de enfermería con un promedio de edad fue de 21.3±0.7 años y predominó el sexo femenino (78.2%). La puntuación media más alta se alcanzó en la E1 (83.1), seguida por E2 y E3 (82.5 y 82.3, respectivamente, mientras que la puntuación media más baja se registró en la E4 (79.6). En la E3 los instructores asignaron puntuaciones más bajas en comparación a las autorreportadas por los estudiantes estandarizados en términos de organización de la enseñanza, características de la enseñanza y rendimiento general (p<0.05). Más del 80% de los estudiantes se mostraron totalmente de acuerdo y recomendaron el OSTE como método principal para evaluar las habilidades docentes en el aula. Conclusión. Se identificaron en los estudiantes participantes las deficiencias en las habilidades pedagógicas; esta información permitirá realizar intervenciones específicas para mejorar situaciones específicas de la situación encontrada. El instrumento OSTE fue un método útil para la valoración de las habilidades pedagógicas de los estudiantes universitarios de enfermería.
Objetivo. Avaliar as competências pedagógicas dos estudantes do terceiro ano de enfermagem da Universidade de Yangzhou (China). Métodos. Um desenho quase-experimental multisite foi utilizado neste estudo. Por amostragem de conveniência, foram selecionados 55 participantes. A escala Objective Structured Teaching Evaluation (OSTE) foi utilizada para avaliar as competências pedagógicas. A avaliação abrangeu quatro estações distintas: Análise do percurso docente (E1), Apresentação do plano de aula (E2), Aula simulada (E3) e Reflexão sobre o ensino (E4). Antes da avaliação, os instrutores atribuíram tarefas aos alunos, que deveriam completar as quatro estações consecutivamente. Resultados. Participaram da pesquisa 55 estudantes de enfermagem com idade média de 21.3±0.7 anos e predominou o sexo feminino (78.2%). A maior pontuação média foi alcançada em E1 (83.1), seguida de E2 e E3 (82.5 e 82.3, respectivamente, enquanto a menor pontuação média foi registrada em E4 (79.6). Em E3 os instrutores atribuíram pontuações mais autorrelatado por alunos padronizados em termos de organização do ensino, características de ensino e desempenho geral (p<0.05). Mais de 80% dos alunos concordaram fortemente e recomendaram o OSTE como principal método para avaliar habilidades de ensino em sala de aula. Conclusão. Foram identificadas deficiências nas competências pedagógicas dos alunos; esta informação permitirá realizar intervenções específicas para melhorar situações específicas da situação encontrada. O instrumento OSTE foi um método útil para avaliar as competências pedagógicas de estudantes universitários de enfermagem.
Assuntos
Humanos , Masculino , Feminino , Estudantes de Enfermagem , Ensino , Avaliação de Programas e Instrumentos de PesquisaRESUMO
An extracellular collagenolytic serine protease was purified from Aspergillus sp., isolated from the Caatinga biome in northeast Brazil by a two-step chromatographic procedure, using an anion-exchanger and gel filtration. The enzyme was produced by submerged fermentation of feather residue as a substrate. The purified collagenase showed a 2.09-fold increase in specific activity and 22.85% yield. The enzyme was a monomeric protein with a molecular mass of 28.7 kDa, estimated by an SDS-PAGE and AKTA system. The optimum temperature and pH for enzyme activity were around 40°C and pH 8.0, respectively. The enzyme was strongly inhibited by phenyl-methylsulfonyl fluoride, a serine protease inhibitor, and was thermostable until 65°C for 1 h. We then evaluated the enzyme's potential for degradation of Type I and Type V collagens for producing peptides with antifungal activity. Our results revealed that the cleavage of Type V collagen yielded more effective peptides than Type I, inhibiting growth of Aspergillus terreus, Aspergillus japonicus and Aspergillus parasiticus. Both groups of peptides (Type I and Type V) were identified by SDS-PAGE. To conclude, the thermostable collagenase we purified in this study has various potentially useful applications in the fields of biochemistry, biotechnology and biomedical sciences.