Dietary nutrient intake and nutritional status in maintenance hemodialysis patients: a multicenter cross-sectional survey.

Purpose: To investigate the dietary nutrient intake of Maintenance hemodialysis (MHD) patients, identify influencing factors, and explore the correlation between dietary nutrient intake and nutritional and disease control indicators.

Methods: This was a multicenter cross-sectional study. A dietary survey was conducted using a three-day dietary record method, and a self-designed diet management software was utilized to calculate the daily intake of dietary nutrients.

Structural, Magnetic and Electronic Properties of 3d Transition-Metal Atoms Adsorbed Monolayer BCN: A First-principles Study.

Based on the monolayer BCN structure, the structural, electronic and magnetic properties of 3d transition metal (TM) atoms (V, Cr, Mn, Fe, Co and Ni) adsorbed on the monolayer BCN, are studied by using the first principle method. The results show that 3d transition metal atoms are stably adsorbed on the monolayer BCN. The most stable adsorption sites for V, Cr, and Mn atoms are the hollow adsorption site (H) of BCN, while the other 3d TM atoms (Fe, Co, Ni) are more readily adsorbed above the C atoms (Tc).