Summary
We reported 20 cases of discharged COVID‐19 patients whose RT‐PCR test results showed ‘re‐positive’. After finding ‘re‐positive’, these patients were admitted to hospital for the second time and were followed up until the end of May 2020. We recorded detailed treatment and follow‐up process, and collected relevant data. The possible causes and potential clinical significance of this phenomenon are discussed.
The consumption of 360-degree videos with head-mounted displays (HMDs) is increasing rapidly. A large number of HMD users watch 360-degree videos at home, often on non-swivel seats; however videos are frequently designed to require the user to turn around. This work explores how the dierence in users' chair type might inuence their viewing experience. A between-subject experiment was conducted with 41 participants. Three chair conditions were used:xed, half-swivel and full-swivel. A variety of measures were explored using eye-tracking, questionnaires, tasks and semistructured interviews. Results suggest that thexed and half-swivel chairs discouraged exploration for certain videos compared with the full-swivel chair. Additionally, participants in thexed chair had worse spatial awareness and greater concern about missing something for certain video than those in the full-swivel chair. No signicant dierences were found in terms of incidental memory, general engagement and simulator sickness among the three chair conditions. Furthermore, thematic analysis of post-experiment interviews revealed four themes regarding the restrictive chairs: physical discomfort, diculty following moving objects, reduced orientation and guided attention. Based on thendings, practical implications, limitations and future work are discussed.
Data Structure Curriculum (DSC) has abstract and dynamic features and it is difficult for learners to gain a full comprehension. According to its abstract features, related algorithms cases should be visualized in order to help learners more easily learn. And according to its dynamic feature, Imagery Training can be introduced into the method of instruction. Resorting to the two modes and the developed demo system of algorithm in DSC, learners can be instructed to comprehend and memorize abstract knowledge better in imaginative ways.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.