Azide-alkyne cycloaddition reactions over cobalt (0) nanoparticles supported on CaTiO perovskite.

A novel Co@CaTiO₃ heterogeneous catalyst was synthesized via the sol-gel method, incorporating cobalt nanoparticles into a perovskite framework. The catalyst exhibited exceptional efficiency in the aqueous-phase synthesis of 1,2,3-triazoles through azide-alkyne cycloaddition (click reaction). Key reaction parameters, including catalyst loading, temperature, time, and solvent, were systematically optimized to achieve high yields.

Effect of the Number of Negative Lymph Nodes Removed on the Survival and Recurrence Rate After Primary Surgery in Patients with Ovarian Cancer: A Multi-Center Retrospective Cohort Study.

The effect of the number of negative lymph nodes (NLNs) removed on the overall survival (OS) and recurrence rate of ovarian cancer (OC) patients has not been investigated. This study aimed to investigate the effect of the number of NLNs removed on OC patients' survival and recurrence rate after primary surgery. In this multi-center cohort study, the medical profile of 504 OC patients (mean age 55.

Evaluation of the quality of life among transgender men before and after gender reassignment surgery: a survey from Iran.

Background: Gender dysphoria, characterized by a misalignment between one's gender identity and assigned sex, propels individuals towards medical interventions like gender reassignment surgery (GRS) to harmonize their bodies with their gender. This process aims to enhance overall quality of life (QoL), functioning, and body image. Recognizing the importance of cultivating a positive body image for transgender individuals navigating societal norms, this narrative highlights the ongoing debate surrounding QoL post-GRS.

Association between prenatal vitamin D deficiency with dental caries in infants and children: a systematic review and meta-analysis.

Prenatal vitamin D (PVD) is a vital micronutrient for dental caries (DCs). The association between prenatal vitamin D deficiencies (PVDD) and DCs in children has been conflicting in different reports. This meta-analysis aimed to investigate the association between PVDD and DCs in children for the first time.