Three-Dimensional-Printed Molds from Water-Soluble Sulfate Ceramics for Biocomposite Formation through Low-Pressure Injection Molding.

Powder mixtures of MgSO with 5-20 mol.% NaSO or KSO were used as precursors for making water-soluble ceramic molds to create thermoplastic polymer/calcium phosphate composites by low pressure injection molding. To increase the strength of the ceramic molds, 5 wt.

Bioceramics Based on β-Calcium Pyrophosphate.

Ceramic samples based on β-calcium pyrophosphate β-CaPO were prepared from powders of γ-calcium pyrophosphate γ-CaPO with preset molar ratios Ca/P = 1, 0.975 and 0.95 using firing at 900, 1000, and 1100 °C.

Colloidal forming of macroporous calcium pyrophosphate bioceramics in 3D-printed molds.

A technique for colloidal forming of CaPO macroporous bioceramics, based on low-pressure injection molding (LPIM) of a glycerol-water slip containing CaPO and Ca(НPO) into a plastic mold fabricated via FDM 3D-printing, was proposed. Chemical reaction between the solid phases of the water containing slip - CaPO and Ca(НPO), resulting in brushite (CaHPO·2HO) formation, led to consolidation of the casting and preserved its complex architecture in the course of mold burning-out. Macroporous ceramics of Kelvin structure (70% macropores with the sizes from 2 up to 4 mm), based on a pre-defined composition with 10 wt% Ca(PO) and sintered in liquid-phase regime, demonstrated a compressive strength of 1.

[Mathematical Modeling of the Blood Glucose Regulation System in Diabetes Mellitus Patients].

Interest in the mathematical modeling of the carbohydrate metabolism regulation system increases in recent years. This is associated with a "closed loop" insulin pump development (it controls an insulin infusion depending on the blood glucose level). To create an algorithm for the automatic control of insulin (and other hormones) infusion using an insulin pump it is necessary to accurately predict glycaemia level.

[The standards of Russian industrial law regulating regimen of working time of personnel of medical organizations].

The article presents history of becoming in Russia on standards of low regulating regimen of working time of medical personnel. The normative legal acts of the USSR and the RSFSR having juridical empower nowadays are presented.