RESUMO
Hirschsprung disease is an uncommon medical condition caused by the lack of migration of ganglion cells to the rectum during embryonic development, affecting the peristaltic movements of the intestine. It is a chronic medical condition responsible for chronic constipation and intestinal obstruction. We present the case of a 10-year-old female with a history of Hirschsprung disease and colectomy admitted to a pediatric hospital for the management of multiple colonic ulcers and severe anemia who subsequently developed a rectovaginal fistula. This patient's admission was complicated by perianal and vaginal excoriations, a paralytic ileus, and fecal incontinence. This case report is unique due to the development of a rare pediatric complication of Hirschsprung disease.
RESUMO
Allowing students to ask and answer questions is a common practice employed by college science instructors. However, recent literature has identified that women participate in whole-class discussions less often than men. One hypothesized reason for this gender gap is that women may be less comfortable participating. However, no studies have examined students' comfort with asking and answering questions in large-enrollment science courses, identified what about these practices might make students uncomfortable, or explored whether there are gender differences with regard to student comfort. To answer these questions, we surveyed 417 undergraduates at an R1 institution about their experiences asking and answering questions in large-enrollment college science courses. Students answered questions about the extent to which they felt comfortable both asking and answering questions and selected possible factors that could make them uncomfortable participating. Using binary logistic regression, we tested whether student demographics predicted their opinions about these practices. Over half of students reported feeling uncomfortable both asking and answering questions in front of college science classes, and women were significantly less comfortable than men both asking and answering questions. Furthermore, we identified student confidence regarding their knowledge of the material and a concern that other students would judge them as some of the primary factors that could cause students to feel uncomfortable asking and answering questions in front of the whole class. This work highlights factors that instructors can target in hopes of maximizing student comfort participating in large-enrollment college science courses.
RESUMO
Allowing students to voluntarily ask and answer questions in front of the whole class are common teaching practices used in college science courses. However, few studies have examined college science students' perceptions of these practices, the extent to which students choose to engage in these practices, and what discourages students from participating. In this study, we surveyed 417 undergraduates at a research-intensive institution about their experiences asking and answering questions in large-enrollment college science courses. Specifically, students answered questions about to what extent they perceive voluntarily asking and answering questions in large-enrollment science courses is helpful to them and why. They also answered questions about to what extent they engage in asking and answering questions in large-enrollment college science courses and what factors could discourage them from participating. Using binary logistic regression, we examined whether there were differences among students of different demographic groups regarding their opinions about asking and answering questions. We found that overwhelmingly students reported that other students voluntarily asking and answering instructor questions is helpful to them. Notably, compared to continuing generation students, first-generation students were more likely to perceive other students asking questions to be helpful. Despite perceiving asking and answering questions to be helpful, over half of students reported that they never ask or answer questions in large-enrollment college science courses during a semester, and women were more likely than men to report never asking questions. We identified fear of negative evaluation, or students' sense of dread associated with being unfavorably evaluated, as a primary factor influencing their decision to answer instructor questions. This work adds to a growing body of literature on student participation in large-enrollment college science courses and begins to uncover underlying factors influencing student participation.
