Association of Traditional dietary pattern with early and precocious puberty: a population-based cross-sectional study.

Background: Precocious puberty is an endocrine disease that is diagnosed by sex, age, and Tanner stage of puberty. This study aimed to investigate the association between various dietary patterns and early or precocious puberty, especially Traditional dietary patterns, which have been rarely investigated.

Methods: A total of 4085 primary school students in grades 1-3 (6-9 years) completed individual characteristic surveys, health examinations, and food frequency questionnaires (FFQs).

Revealing the synergy between zinc and aluminum in Cu/ZnO/AlO industrial catalyst.

The active sites in Cu/ZnO/AlO industrial catalyst for CO hydrogenation to methanol need to be fully clarified. In this work, we reveal two types of active sites at the nano-sized Cu/ZnO interface, of which only one type is efficient. The efficient active site is characterized by isolated and under-coordinated Zn atoms located at the vertices of the supported ZnO island, thus the density of which is so limited.