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The air mediated radical alkylation of cyclic aldimines via autoxidation of alkylboronic acids has been realized under mild reaction conditions. By simply heating cyclic aldimines with alkylboronic acid using air as sole oxidant, this protocol provides a catalyst‐free access to a variety of alkylated cyclic aldimines with 21–91% yields. Preliminary mechanistic studies suggest that a radical pathway might be involved in the reaction. [ABSTRACT FROM AUTHOR]

Objectives/Hypothesis: To evaluate the application and advantages of coblation tonsillectomy with inferior pole capsule preservation in pediatric patients with tonsillar hypertrophy and recurrent tonsillitis. Study Design: Retrospective chart review. Methods: A total of 726 children who were diagnosed with either tonsillar hypertrophy or recurrent tonsillitis were included. Children were divided into two groups according to the surgical technique: conventional coblation tonsillectomy and coblation tonsillectomy with inferior pole capsule preservation. The duration of surgery, intraoperative hemorrhage volume, and postoperative pain, as well as postoperative hemorrhage data in the format of time, location, and degree were compared between the two groups. Results: Of the 726 children included, conventional coblation tonsillectomy was performed in 320 children, coblation tonsillectomy with inferior pole capsule preservation was performed in 406 children. There were no significant differences in duration of surgery or intraoperative hemorrhage volume between the two groups. Children who underwent coblation tonsillectomy with inferior pole capsule preservation showed a remarkable improvement in postoperative pain on days 3 and 5 postoperatively. Additionally, the coblation tonsillectomy with inferior pole capsule preservation group exhibited a significantly lower total postoperative hemorrhage rate, secondary hemorrhage rate, and hemorrhage rate in the inferior pole compared with that in the conventional coblation tonsillectomy group. During the 1‐year follow‐up period, no cases of tonsillar re‐hypertrophy or recurrent tonsillitis were observed in either group. Conclusion: For pediatric tonsillar hypertrophy and recurrent tonsillitis, coblation tonsillectomy with inferior pole capsule preservation is a safe and effective technique, capable of reducing postoperative pain and hemorrhage, especially secondary hemorrhage at the inferior pole. Level of Evidence: 3b Laryngoscope, 131:1157–1162, 2021 [ABSTRACT FROM AUTHOR]

The N-doped porous carbon monoliths prepared by direct carbonization of IRMOF-3, through an in situ activation and self-templating process, were found to exhibit significantly enhanced performance for the selective adsorption of CO2 compared to pristine IRMOF-3. The transformation from the microporous structure to the meso-macroporous structure opens the pathway for CO2 to more easily access the nitrogen anchors. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study is to explore the application and advantages of combined intrathecal and extrathecal hypothermic plasma tonsillectomy in reducing intraoperative and postoperative hemorrhage in OSA children. Method: We retrospectively reviewed 726 cases who were diagnosed as OSA. All patients were divided into two groups according to the surgical method: 320 cases by total tonsillectomy and 406 cases by combined extracapsular and intracapsular tonsillectomy. The intro operative bleeding volume, post operative haemorrhage data as time, location and degree in the two groups were compared. Result: There was no statistical difference in the intro operative bleeding volume in the two groups [（9.3±4.6） mL]vs [（7.6±3.5） mL], t =12.687, P =0.235. Two patients who underwent combined extracapsular and intracapsular tonsillectomy presented with post operative haemorrhage, the total post operative haemorrhage rate was significantly decreased that in the total tonsillectomy group（14 cases）（χ²=10.779, P =0.001）. The 2 patients in combined extracapsular and intracapsular tonsillectomy group were secondary haemorrhage, with location in the upper pole and medium, grade A haemorrhage; while in the 14 cases in in the total tonsillectomy group, there were 2 cases presented with primary haemorrhage and 12 cases with secondary haemorrhage; with regard to location of haemorrhage, 1 in the upper pole, 2 in the medium, 11 in the lower pole; 5 cases presented with grade A haemorrhage, 8 with grade B haemorrhage and 1 with grade C haemorrhage. The haemorrhage rate at 7 days after surgery （χ²=5.697, P =0.017）, at the lower pole（χ²=11.961, P =0.001） and grade B（χ²=8.097, P =0.004） were all significantly decreases in the combined extracapsular and intracapsular tonsillectomy group. Conclusion: Plasma tonsillectomy combined with intrathecal and extrathecal hypothermic tonsillectomy is a safe and effective method, which has obvious advantages in reducing the postoperative hemorrhage, especially the secondary hemorrhage of Subtonsillar Pole., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)