The Role of Novelty Satisfaction in Distance Physical Education During the COVID-19 Pandemic: A Self-Determination Theory Perspective.

PURPOSE: To better understand the role of novelty satisfaction in distance physical education (PE) during the COVID-19 pandemic, this study aimed to determine the relationships among students' novelty satisfaction, basic psychological needs satisfaction, autonomous motivation, effort, and enjoyment and to examine the mediating effects of autonomous motivation in the relationships between novelty satisfaction and effort and enjoyment. METHODS: The participants were 332 undergraduate students from 10 PE classes. Structural equation modeling was used for data analysis. RESULTS: Satisfaction of students' need for novelty and the three basic needs positively predicted autonomous motivation, which in turn positively predicted effort and enjoyment. The relationships between students' novelty satisfaction and their effort and enjoyment were mediated by autonomous motivation. CONCLUSION: This study provides important insights into needs satisfaction and motivational underpinnings of outcomes in distance PE during the COVID-19 pandemic. We suggest that future studies develop novelty support strategies based on our findings.

An Integrated Platform for Serological Detection and Vaccination of COVID-19.

Coronavirus Disease 2019 (COVID-19), caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), is an ongoing pandemic. Detection and vaccination are essential for disease control, but they are distinct and complex operations that require significant improvements. Here, we developed an integrated detection and vaccination system to greatly simplify these efforts. We constructed recombinant baculoviruses to separately display the nucleocapsid (N) and spike (S) proteins of SARS-CoV-2. Insect cells infected by the recombinant baculoviruses were used to generate a cell-based system to accurately detect patient serum. Notably, although well-recognized by our newly developed detection system in which S-displaying insect cells acted as antigen, anti-S antibodies from many patients were barely detectable by Western blot, evidencing that COVID-19 patients primarily produce conformation-dependent anti-S antibodies. Furthermore, the same baculovirus constructs can display N (N-Bac) or S (S-Bac) on the baculovirus envelope and serve as vector vaccines. Animal experiments show that S-Bac or N-Bac immunization in mice elicited a strong and specific antibody response, and S-Bac in particular stimulated effective neutralizing antibodies without the need for adjuvant. Our integrated system maintains antigen conformation and membrane structure to facilitate serum detection and antibody stimulation. Thus, compared with currently available technologies, our system represents a simplified and efficient platform for better SARS-CoV-2 detection and vaccination.