Background and objectivePoor vitamin D status during pregnancy has been associated with unfavorable outcomes for mother and child.Thus, adequate vitamin D status in women of childbearing age may be important.The aim of this study is to investigate the determinants of 25-hydroxyvitamin D (25(OH)D) serum concentrations in women PRO VISION of childbea
Mei-fang Wang, Li Lin, Lin-feng Li Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, People’s Republic of ChinaCorrespondence: Lin-feng LiDepartment Ramiken Set of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, People’s Republic of ChinaTel +86136
The debate on food security has highlighted the connection between periurban farming systems (PFS) and local food systems (LFS) for academic research.Several researchers have called for in-depth analysis of the participation and impact of farmers in LFS, and the systemic innovation perspective can provide relevant analysis of the sustainability of
The extraction of shape features from vector elements is essential in cartography and geographic information science, supporting a range of intelligent processing tasks.Traditional methods rely on different machine learning algorithms tailored to specific types of line and polygon elements, limiting their general applicability.This study introduces