Mechanistic study on the promotion of Ca leaching in steel slag through high-temperature solid waste modification.

Indirect carbonation of steel slag is an effective method for CO storage, reducing emissions, and promoting cleaner production in the steel industry. However, challenges remain, such as low Ca leaching rates and slag management complexities arising from variations in mineral compositions. To address this, a high-temperature modification process is proposed to alter the mineral composition and facilitate the synergistic utilization of calcium and iron.

Research status and future challenge for CO sequestration by mineral carbonation strategy using iron and steel slag.

Mineral carbonation can simultaneously realize the effective treatment of CO and iron and steel slag; thus, it is of great significance for the low carbon and sustainable development of iron and steel industry. In this article, the researches of mineral carbonation process using iron and steel slag as feedstock are reviewed, and the carbonation reaction mechanism and the parameters affecting the reaction rate and carbonation degree are analyzed. Furthermore, the effect of different enforcement approaches, such as ultrasonic enhancement, mixed calcination, microbial enhancement, and cyclic coprocessing on mineral carbonation reaction, is introduced.

Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus-Infected Pneumonia.

Background: The initial cases of novel coronavirus (2019-nCoV)-infected pneumonia (NCIP) occurred in Wuhan, Hubei Province, China, in December 2019 and January 2020. We analyzed data on the first 425 confirmed cases in Wuhan to determine the epidemiologic characteristics of NCIP.

Methods: We collected information on demographic characteristics, exposure history, and illness timelines of laboratory-confirmed cases of NCIP that had been reported by January 22, 2020.

Evaluation of Need and Distribution of National Essential Medicines List in Village Clinics: A Cross-sectional Study Based on the Perspective of Village Doctors in China.

This study aimed to evaluate the satisfaction of village doctors to essential medicines list (EML) and accessibility of essential medicines (EMs) distribution to improve the implementation of EML in village clinics. A total of 422 village doctors from five counties in three provinces of China were surveyed by questionnaires. Logistic regression analysis was conducted to identify the main factors associated with village doctors' evaluation of EML.

Estimating the costs of the national basic public health services in Zhuhai, China, through activity-based costing: a cross-sectional study.

Objective: Our research aims to estimate the per capita cost of 13 items in the basic public health service (BPHS) project in Zhuhai, China, and provide an economical basis for the improvement of the cost compensation mechanism used by the government.

Design: This research is a cross-sectional study.

Setting: A total of 19 primary healthcare facilities (PHFs) in Zhuhai, China, are involved in this research.