Regimes of Resonance: Cosmos, Empire, and Changing Technologies of CCP Rule

This analysis aims to place certain key elements of Chinese Communist Party (CCP) rule observed under Xi Jinping today into longer and fuller historical perspective. It highlights trademark CCP practices of ordering space, marking time, potent political messaging, and vigorous propaganda diffusion as these have evolved over many years up to the present, reconsidering these in light of early Chinese cosmological thought and later symbolic practices of empire.

CT-guided preoperative localization of ground glass nodule: comparison between the application of embolization microcoil and the locating needle designed for pulmonary nodules

Objectives: To compare the efficacy and safety of preoperative localization of ground glass nodule (GGN) using embolization microcoils and the locating needles designed for pulmonary nodules. Methods: From June 2019 to December 2020, 429 patients who received CT-guided localization of single GGN before video-assisted thoracoscopic surgery (VATS) were enrolled. The diameter and depth of GGNs were 0.84 ± 0.39 cm and 1.66 ± 1.37 cm. Among 429 cases, the first 221 GGNs were marked with microcoils (the microcoil group), and the remaining 208 GGNs were marked with the locating needles designed for pulmonary nodules (the locating needle group). SPSS 17.0 statistical software was used to compare the marking success rate, marking time, marking-related complications between two groups. p values < 0.05 were considered statistically significant. Results: The marking time in the microcoil group was longer than that in the locating needle group (11.1 ± 3.9 vs 8.2 ± 2.0 min, t = −7.87, p = 0.000). The marking success rate in the microcoil group was lower than that in the locating needle group (91.4% vs 98.6%, χ2 = 11.27, p = 0.001). In the microcoil group, marking failures included 16 cases of microcoil dislocation and 3 cases of unsatisfactory microcoil position, while all 3 cases of marking failure in the locating needle group were due to unsatisfactory anchor position. No significant differences in the incidence of total complications (23.1% vs 22.1%), pneumothorax (18.1% vs 19.2%), hemorrhage (9.5% vs 9.1%), and hemoptysis (1.8% vs 1.4%) were observed between the two groups. All the complications were minor and did not need special treatment. Except for one case in the microcoil group, which was converted to thoracotomy, the remaining 428 GGNs were successfully resected by VATS. Conclusions: It is safe and effective to perform preoperative localization of GGN using either embolization microcoil or the locating needle designed for pulmonary nodules. The locating needle is superior to microcoil for marking GGN in terms of procedure time and the success rate. The complication rate of both methods is similar. Advances in knowledge: The locating needle designed for pulmonary nodules has recently been used to mark pulmonary nodule. Its structure can effectively avoid dislocation after localization, and the marking process is simple and quick. Compared with localization using microcoil, it takes less time and has higher success rate to mark GGNs using the locating needle. The complication rate of both methods is similar.

Marking Time, Making Community in Medieval Schools

This article examines the nature of school days and school years in later medieval Western Europe and considers the societal functions of the temporal cultures that emerged. The forms of the school day and year in elementary and grammar schools—alongside school- and youth-centered festivals—were replete with meaning and possessed utility beyond simple responses to environmental factors such as seasonal and meteorological changes. School authorities—whether ecclesiastical or municipal—saw the temporal cultures of medieval schools as a means to socialize children and to create and maintain collective community identities. By exploring a range of different traditions and regional variations, it is clear that the experience of the passage of time was imbued with meaning and social significance for medieval schoolchildren and their communities.