Background: Recognizing the causes of stillbirths and their associated conditions is essential to reduce its occurrence.
Objective: To describe information on stillbirths in Brazil during the past decade.
Search Strategy: A literature search was performed from January 2010 to December 2020.
Objective: To determine fetal death rates (FDRs) according to maternal characteristics in Brazil.
Methods: A serial cross-sectional analysis was conducted based on vital statistics of the Brazilian population from 2007 to 2019. FDRs were estimated according to maternal and pregnancy characteristics.
We demonstrate the stabilization of a laser diode frequency, using the circular dichroism of an alkali vapor and feeding back the correction signal to the temperature actuator of the junction. The conditions of operation and the performance of such a system are discussed.
View Article and Find Full Text PDFThe kaolin processing industry generates large amounts of waste in producing countries such as Brazil. The aim of this study was to characterize kaolin processing waste and evaluate its suitability as an alternative ceramic raw material for the production of porous technical ceramic bodies. The waste material was physically and chemically characterized and its thermal behaviour is described.
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