A bioinspired collective synthesis strategy enabled the total syntheses of seven iboga-type indole alkaloids: tabertinggine, ibogamine, ibogaine, ibogaine hydroxyindolenine, 3-oxoibogaine hydroxyindolenine, iboluteine, and ervaoffines D. Tabertinggine and its congeners act as precursors for biomimetic transformations into other iboga-type alkaloids.
Among 447 full-time undergraduate nursing students in Wuhan, China, self-transcendence—a sense of expanding personal boundaries and finding meaning—positively influenced professional identity. Part of this effect was explained by learning engagement, which acted as a mediator. However, higher career self-efficacy weakened the link between self-transcendence and learning engagement, suggesting that students who already feel confident about their career abilities rely less on self-transcendence to stay engaged. The findings clarify how these factors interact and point to ways to support professional identity development in nursing education.