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Total 2214 results found since Jan 2013.
Study of microscopic properties and heavy metal solidification mechanism of electrolytic manganese residue-based cementitious materials
This study aimed to prepare cementitious materials containing abundant ettringite crystals by mixing EMR with various proportions of granulated blast furnace slag (GBFS) and alkaline activators (CaO, Ca(OH)2, clinker, NaOH). The resulting cementitious material not only utilized a substantial amount of EMR but also exhibited comparable strength to ordinary Portland cement. The optimal ratios were determined through mechanical testing. Additionally, the leaching toxicity of cementitious materials was assessed using ICP-MS (inductively coupled plasma mass spectrometer) tests. The microscopic properties, hydration, and mechani...
Source: Environmental Science and Pollution Research International - September 19, 2023 Category: Environmental Health Authors: Liang Tang Zhaoyi He Kefan Chen Xiaoli Wang Yixun Xiao Zhou Yu Haixin Xiao Source Type: research
A foot structure study of new arch flexibility grading system based on three-dimensional arch volume
CONCLUSION: In cavus, rectus, and planus, different AVF accounts different percentage, but the difference is not statistically significant. AVF is evenly distributed in the arches of the feet at different heights. We further found the relationship between AHF and AVF is not significant. As a three-dimensional index, AVF may be able to describe the flexibility of the arch more comprehensively than AHF.PMID:37716873 | DOI:10.1016/j.cjtee.2023.09.002
Source: Chinese Journal of Traumatology - September 16, 2023 Category: Orthopaedics Authors: Jun Liu Miao Deng Wei Wang Xiang-Dong Liu Lun Tao Hong-Yi Xiang Yan Xiong Source Type: research
Factorial validity of the problematic social media use scale among Chinese adults
This study aimed to test the factorial structure, internal consistency, and external validity of the Chinese version of the PSMUS in a sample of 672 adults (31% males) aged between 18 and 58. A series of confirmatory factor analyses supported the bifactor structure of the PSMUS, including a general factor and five specific independent components, namely preference for online social interactions, mood regulation, cognitive preoccupation, compulsive use, and negative outcomes. Hierarchical Omega supported the presence of a general factor, and also ancillary indexes suggested that the questionnaire is not strictly unidimensio...
Source: Addictive Behaviors - September 12, 2023 Category: Addiction Authors: Jiewen Zhang Tatiana Marci Claudia Marino Natale Canale Alessio Vieno Jinyuan Wang Xiaoxi Chen Source Type: research
18F-prostate specific membrane antigen positron emission tomography/computerized tomography for lymph node staging in medium/high risk prostate cancer: A systematic review and meta-analysis
CONCLUSIONS: 18F-PSMA PET/CT showed moderate sensitivity but high specificity in lymph node staging of medium/high-risk PCa. The diagnostic efficacy was almost equivalent to that reported for 68Ga-PSMA PET/CT.REGISTRATION: International Prospective Register of Systematic Reviews (PROSPERO), No. CRD42023391101.PMID:37690993 | DOI:10.1097/CM9.0000000000002850
Source: Chinese Medical Journal - September 10, 2023 Category: General Medicine Authors: Zhengtong Lv Liuqi Song Miao Wang Huimin Hou Haodong Li Xuan Wang Jianye Wang Jianlong Wang Ming Liu Source Type: research
Long working hours and all-cause mortality in China: A 26-year follow-up study
CONCLUSION: This study provides evidence of an association between long working hours and all-cause mortality, which is specifically observed among men and smokers. Targeted interventions should be implemented to reduce excessive working hours and identify individuals at elevated risk, with support from labor organizations, policymakers, and employers.PMID:37665226 | DOI:10.5271/sjweh.4115
Source: Scandinavian Journal of Work, Environment and Health - September 4, 2023 Category: Occupational Health Authors: Yeen Huang Yingping Xiang Wei Zhou Guanpeng Li Chengzhi Zhao Di Zhang Shenying Fang Source Type: research
Structure and thermal properties of cellulose nanofibrils extracted from alkali-ultrasound treated windmill palm fibers
This study investigates the structure and thermal properties of cellulose nanofibrils (CNFs) obtained from windmill palm biomass, with the goal of promoting the usage of these CNFs. Alkali-ultrasound treatments are employed herein to prepare samples of the CNFs. The micromorphology of the prepared samples is observed using scanning electron microscopy, atomic force microscopy, and transmission electron microscopy. Furthermore, X-ray diffraction analysis is used to examine the aggregated structure of the samples, and thermogravimetric analysis is used to investigate their thermal properties. Results indicate that during alk...
Source: International Journal of Biological Macromolecules - September 2, 2023 Category: Biochemistry Authors: Changjie Chen Duxue Huang Qian Yang Guohe Wang Xinhou Wang Source Type: research
Using a novel strategy to investigate the spatially autocorrelated and clustered associations between short-term exposure to PM < sub > 2.5 < /sub > and mortality and the attributable burden: A case study in the Sichuan Basin, China
Ecotoxicol Environ Saf. 2023 Aug 30;264:115405. doi: 10.1016/j.ecoenv.2023.115405. Online ahead of print.ABSTRACTDue to the lack of statistical methods, few studies have investigated the spatial autocorrelated distribution in the association between short-term exposure to PM2.5 and mortality and used a statistical manner to explore the association-clustered regions, which play important roles in identifying high-sensitivity/susceptibility regions. The Sichuan Basin (SCB) is one of the most PM2.5-polluted areas, and the extreme economic imbalance may cause considerable spatial heterogeneity and clustering in PM2.5-mortality...
Source: Ecotoxicology and Environmental Safety - September 1, 2023 Category: Environmental Health Authors: Wei Wang Jing Zeng Xuelin Li Fang Liao Sheng Li Xinyue Tian Fei Yin Tao Zhang Ying Deng Yue Ma Source Type: research
