3D-printed simulator for nasopharyngeal swab collection for COVID-19.

OBJECTIVES: Diagnosis of COVID-19 is essential to prevent the spread of SARS-CoV-2. Nasopharyngeal swabs (NPS) remain the gold standard in screening, although associated with false negative results (up to 30%). We developed a 3D simulator of the nasal and pharyngeal cavities for the learning and improvement of NPS collection. PATIENTS AND METHODS: Simulator training sessions were carried out in 11 centers in France. A questionnaire assessing the simulator was administered at the end of the sessions. The study population included both healthcare workers (HCW) and volunteers from the general population. RESULTS: Out of 589 participants, overall satisfaction was scored 9.0 [8.9-9.1] on a scale of 0 to 10 with excellent results in the 16 evaluation items of each category (HCWs and general population, NPS novices and experienced). The simulator was considered very realistic (95%), easy to use (97%), useful to understand the anatomy (89%) and NPS sampling technique (93%). This educational tool was considered essential (93%). Participants felt their future NPS would be more reliable (72%), less painful (70%), easier to perform (88%) and that they would be carried out more serenely (90%). The mean number of NPS conducted on the simulator to feel at ease was two; technical fluency with the simulator can thus be acquired quickly. CONCLUSION: Our simulator, whose 3D printing can be reproduced freely using a permanent open access link, is an essential educational tool to standardize the learning and improvement of NPS collection. It should enhance virus detection and thus contribute to better pandemic control.

The online course was great: I would attend it face-to-face: The good, the bad, and the ugly of it in emergency remote teaching of CS1

We describe how we redesigned, because of the 2020 COVID-19 pandemic, the CS1 course for Math undergraduates to be held online yet reflecting the face-to-face (F2F) experience as much as possible. We present the course structure, the IT tools we used, and the strategies we implemented to preserve the benefits of a synchronous experience. We discuss the positive and negative aspects that emerged from the students' opinion qualitative analysis. We use the COI framework as a lens to explain what worked, what did not, and what can be improved to strengthen the perception of a F2F experience and mitigate the "presence paradox"we found: despite students being enthusiastic about the online format, most would still prefer a F2F course. © 2021 ACM.

The Good, the Bad, and the Ugly of a Synchronous Online CS1

This poster illustrates how we redesigned the CS1 course for Math undergraduates to be held online but reflecting the face-to-face (F2F) experience as much as possible. We describe the course structure and the strategies we implemented to maintain the benefits of a synchronous experience. We present the positive and negative aspects that emerged from the students' opinion analysis. We highlight what worked, what did not, and what can be improved to strengthen the perception of a F2F experience and mitigate the "presence paradox"we found: although students are enthusiastic about the online format, most would still prefer a F2F course. © 2021 Owner/Author.