Enhancing Trauma Care: A Machine Learning Approach with XGBoost for Predicting Urgent Hemorrhage Interventions Using NTDB Data.

Objective: Trauma is a leading cause of death worldwide, with many incidents resulting in hemorrhage before the patient reaches the hospital. Despite advances in trauma care, the majority of deaths occur within the first three hours of hospital admission, offering a very limited window for effective intervention. Unfortunately, a significant increase in mortality from hemorrhagic trauma is primarily due to delays in hemorrhage control.

Distribution and source of heavy metals in the sediments of the coastal East China sea: Geochemical controls and typhoon impact.

The present study conducted a comprehensive study on the distribution and source of heavy metals (Cu, Zn, Ni, Pb, Cd) in the sediments of the coastal East China Sea (ECS), one of the most developed regions in China with very active land-sea interactions, using 119 surface sediment samples and a 2-m sediment core collected after super Typhoon Chan-hom in 2015. Heavy metals in the surface sediments exhibited metal-dependent and regional distribution patterns, showing higher levels in the southern inner shelf (SIS) than the Yangtze River estuary (YRE), and generally being evaluated as unpolluted to moderately polluted in the coastal ECS (except few sites adjacent to Xiangshan Harbor were strongly polluted by Cd). Based on the organic carbon isotope compositions (δC) data as well as the strong correlations between heavy metals and natural major elemental contents (AlO, FeO, and SiO), we suggest natural weathering detritus as the major source of heavy metals in the YRE region and the spatial distributions were highly controlled by sediment grain size and organic matter.

Geochemical controls on the distribution of mercury and methylmercury in sediments of the coastal East China Sea.

We examined the spatial and vertical distribution of total mercury (THg) in 119 surface sediment samples and 4 sediment cores from the coastal East China Sea. The THg concentrations (3.6-69.

[A New Sample Fusion Technique for Quantitative Analysis of Major and Minor Elements in Sulfides with X-Ray Fluorescence Spectrometry and Laser Ablation Inductively Coupled Plasma Mass Spectrometry].

A new sample fusion method for sulfides has been developed in this study. HNO3 was used as a short pre-oxidation reagent instead of the traditional solid oxidant (e.g.