Results 51 to 60 of about 310,363 (147)

Optimization the design of fixed and group sequential three-arm non-inferiority trials with dichotomous endpoints of risk difference and odds ratio

Contemporary Clinical Trials Communications
Although the risk difference (RD) is the most common and well explored functional form for testing efficacy with dichotomous endpoint, odds ratio (OR) is also suggested and well applied measure for non-inferiority (NI) trials.
Wenwen Wang, Yaru Huang, Jielai Xia, Ling Wang, Chen Li   +4 more
doaj   +1 more source

Amalgam Hazards an Assessment Of Research

The Journal of the American Dental Association, 1991
Although mercury vapor in high concentration can have deleterious effects on several organ systems, there is no evidence of risk at the levels generated by chewing with amalgam restorations. Epidemiological studies relating amalgam exposure to health outcomes are recommended, however, to provide the profession and the public a full sense of security.
openaire   +2 more sources

Transportation of Hazardous Materials Emergency Preparedness Hazards Assessment [PDF]

, 2000
This report documents the Emergency Preparedness Hazards Assessment (EPHA) for the Transportation of Hazardous Materials (THM) at the Department of Energy (DOE) Savannah River Site (SRS). This hazards assessment is intended to identify and analyze those transportation hazards significant enough to warrant consideration in the SRS Emergency Management ...
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Manganese disrupts lipid droplet autophagy and drives A1 astrocyte activation via the LAMP2–PLIN2 axis through mTOR–p70S6K1 signaling pathway

Ecotoxicology and Environmental Safety
Manganese (Mn), the fifth most abundant metal in Earth’s crust, is extensively mined for industrial, energy, and agricultural applications, resulting in excess human exposure. Mn accumulates in the central nervous system (CNS) and triggers neurotoxicity;
Liming Yuan, Lulin Zhou, Honggang Chen, Yang Hu, Jing Wang, Jingyuan Chen, Wenjing Luo, Jianbin Zhang   +7 more
doaj   +1 more source

Applying spectral decomposition to seismic facies clustering with unsupervised machine learning

Геофизический журнал
Seismic facies analysis, essential for subsurface geological exploration, has traditionally challenged the ability to capture subtle variations in complex stratigraphic environments.
Ruslan Malikov, Gulam Babayev
doaj   +1 more source

Correction: Trends and focuses of hantavirus researches: a global bibliometric analysis and visualization from 1980 to 2020

Archives of Public Health, 2022
Xiao Wei, Xinlou Li, Shuxuan Song, Xiaohui Wen, Tiezhi Jin, Chenxi Zhao, Xubin Wu, Kun Liu, Zhongjun Shao   +8 more
doaj   +1 more source

hazard assessment

Citation: 'hazard assessment' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14733 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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Mixed-effects neural network modelling to predict longitudinal trends in fasting plasma glucose

BMC Medical Research Methodology
Background Accurate fasting plasma glucose (FPG) trend prediction is important for management and treatment of patients with type 2 diabetes mellitus (T2DM), a globally prevalent chronic disease.
Qiong Zou, Borui Chen, Yang Zhang, Xi Wu, Yi Wan, Changsheng Chen   +5 more
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A multistate transition model for survival estimation in randomized trials with treatment switching and a cured subgroup

BMC Medical Research Methodology
Although many methods have been proposed on the overall survival estimation in randomized trials permitting treatment switching after the progressive disease (PD), the cured subgroup of patients within these trials has not been fully considered.
Haixia Hu, Ling Wang, Kejian Wu, Wei Ge, Jielai Xia, Chen Li   +5 more
doaj   +1 more source

Altered regional brain activity and functional connectivity in relation to blood lead levels

Environmental Sciences Europe
Background Lead is a prevalent heavy metal pollutant in the environment, and chronic lead exposure in occupational settings has been linked to cognitive decline. Our objective was to delineate lead-induced changes in brain functional activity through the
Yi Shi, Linfeng Yan, Yang Yang, Fenfen He, Wenhao Li, Jianbin Zhang, Fang Zhao, Diya Wang, Wen Wang, Zaihua Zhao, Xuefeng Shen   +10 more
doaj   +1 more source