Extraction process and characterization of (TKS) latex.

(TKS) latex is a natural latex produced from its root, and its extraction optimization process is mainly studied in the present paper. The composition of fresh roots of TKS was quantitatively analyzed, and the results showed that the moisture content of the fresh root was approximately 70 %, and the rubber content averaged to 6 % (dry weight ratio). An optimal process route for extracting the TKS latex was finally determined, making the extraction efficiency reach about 80 %, and a new latex extraction process was established and optimized and named "the process of Buffer Extraction TKS Latex (BETL)".

The Effect of Maternal Voice on Venipuncture Induced Pain in Neonates: A Randomized Study.

Background: Venipuncture is a common procedure in the neonatal intensive care unit (NICU) and causes significant pain for neonates.

Aim: To evaluate the effect of maternal voice on pain caused by venipuncture (including peripheral venipuncture and femoral venipuncture) in neonates hospitalized in the NICU.

Design: Experimental, randomized controlled study.