ABSTRACT
Supervision of teaching is of great significance to the substantive equivalence of "online" and "offline" teaching. Compared with the conventional supervision of offline teaching, supervision of online teaching has its particularity. The School of Medicine of Shanghai Jiao Tong University has formulated the online teaching supervision program, relying on the constantly improving supervision system in long-term practice and based on the quality control concept of OBE (outcomes-based education) which aims to improve the learning effect of students. The supervision program of online teaching includes full coverage of expert supervision, smooth feedback channels for students, prompt communication and solutions by management supervision, etc. And the effect of online teaching supervision on students' learning effect can be tested in practice. The effect of the online teaching has been investigated by the questionnaire survey. The results show that online teaching expert supervision has higher satisfaction and students learning effect is better, which illustrates that the online supervision program has played a positive role in teaching.
ABSTRACT
Objective To study the clinical manifestations,etiology,magnetic resonance imaging features,prognosis of patients with bilateral medial medullary infarction.Methods The clinical information of two case reports were summarized with review of the literature.Results The 2 patients with bilateral medial medullary infarction reported here were manifested with progressive quadriplegia,both complicated with respiratory disorders.On etiology,both were due to atherosclerosis,and one was combined with congenital vascular variation.The Y shaped hyperintense signals were seen in diffusion weighted imaging (DWI) cross-section in the medulla oblongata level.And both had poor outcomes that one was dead and the other was discharged with tracheotomy and severe sequela.Conclusions Bilateral medial medullary infarction is presented with complicated symptoms such as quadriplegia,dysarthria,hypoglossoplegia,even respiratory failure,in which quadriplegia is most often seen,and it is associated with a poor clinical prognosis.DWI appears the characteristic Y Shaped sign.