Qingjun Guo
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View article: Mass‐Independent Fractionation of Mercury Stable Isotopes Reveals Atmospheric Transport Impact on Particulate‐Bound Mercury
Mass‐Independent Fractionation of Mercury Stable Isotopes Reveals Atmospheric Transport Impact on Particulate‐Bound Mercury Open
Atmospheric particulate‐bound mercury (PBM), adsorbed onto aerosols like TSP and PM 2.5 (PBM TSP and PBM 2.5 ), is crucial to the Hg biogeochemical cycle. However, the mechanisms underlying the formation and transportation of PBM remain un…
View article: Recombinant monoclonal antibody siltartoxatug versus plasma-derived human tetanus immunoglobulin for tetanus: a randomized, double-blind, active-controlled, phase 3 trial
Recombinant monoclonal antibody siltartoxatug versus plasma-derived human tetanus immunoglobulin for tetanus: a randomized, double-blind, active-controlled, phase 3 trial Open
Tetanus remains an important global public health concern. Currently, the only recommended passive immunization therapy for tetanus prophylaxis is plasma-derived human tetanus immunoglobulin (HTIG), which faces a global supply shortage and…
View article: The Future of Talk Shows: AI-Driven Virtual Hosts and Their Impact on Media Communication: A Systematic Literature Review
The Future of Talk Shows: AI-Driven Virtual Hosts and Their Impact on Media Communication: A Systematic Literature Review Open
This study investigates the emergence of AI-driven virtual hosts in contemporary media, focusing on their technological foundations, adoption patterns, audience reception, and ethical implications. Through a systematic literature review an…
View article: Technology, power, and creativity in China’s Wanghong industry: A creator-centric analysis of digital cultural production
Technology, power, and creativity in China’s Wanghong industry: A creator-centric analysis of digital cultural production Open
This study examines how technology integration shapes power dynamics and creative labor management in China’s wanghong (internet celebrity) industry, focusing on the moderating roles of collaboration and job satisfaction. Using a mixed-met…
View article: The potential of seep carbonates to preserve the seawater isotope compositions
The potential of seep carbonates to preserve the seawater isotope compositions Open
The isotopic compositions of authigenic minerals of marine sediments are potential proxies for reconstructing paleoenvironmental conditions. However, the reliability and applicability of this tracer remain elusive due to the limited spatia…
View article: Mass-Independent Fractionation Reveals the Sources and Transport of Atmospheric Particulate Bound Mercury
Mass-Independent Fractionation Reveals the Sources and Transport of Atmospheric Particulate Bound Mercury Open
Mercury (Hg) is highly toxic and the only heavy metal that can exist in the atmosphere in gaseous form. When atmospheric Hg mixes with aerosols, it forms particulate-bound mercury (PBM). PBM can be transported and settle down quickly acros…
View article: Role of arbuscular mycorrhizal fungi behind the plant ameliorated tolerance against cadmium stress: A global meta-analysis
Role of arbuscular mycorrhizal fungi behind the plant ameliorated tolerance against cadmium stress: A global meta-analysis Open
Increasing industrial activity has led to a growing risk of cadmium (Cd) accumulations and biomagnifications in plants and humans. Arbuscular mycorrhizal fungi (AMF) have been extensively studied as a soil amendment technique due to their …
View article: Sulfate formation in haze pollution using multiple sulfur isotopes
Sulfate formation in haze pollution using multiple sulfur isotopes Open
Air pollution has become a serious problem in some parts of the world. The mechanism of sulfate formation during haze events is still not clear. This research looks at the different sulfur isotope compositions of sulfate in PM2.5 (from 201…
View article: Sulfur and oxygen isotope ratios constrain riverine sulfate sources and terrestrial pyrite oxidation
Sulfur and oxygen isotope ratios constrain riverine sulfate sources and terrestrial pyrite oxidation Open
Pyrite oxidation, coupled with carbonate weathering, can be a source of carbon dioxide (CO2) in the atmosphere over geological timescales. However, this source of CO2 is an important but not entirely understood component of the long-term c…
View article: Size distribution and lung-deposition of ambient particulate matter oxidative potential: A contrast between dithiothreitol and ascorbic acid assays
Size distribution and lung-deposition of ambient particulate matter oxidative potential: A contrast between dithiothreitol and ascorbic acid assays Open
Particulate matter (PM) inhaled into human lungs causes oxidative stress and adverse health effects through antioxidant depletion (oxidative potential, OP). However, there is limited knowledge regarding the association between the lung-dep…
View article: Early diagenetic control on the enrichment and fractionation of rare earth elements in deep-sea sediments
Early diagenetic control on the enrichment and fractionation of rare earth elements in deep-sea sediments Open
The rare earth elements and yttrium (REY) in bioapatite from deep-sea sediments are potential proxies for reconstructing paleoenvironmental conditions. However, the REY enrichment mechanism and the reliability of this tracer remain elusive…
View article: The comparative potential of four Compositae plants for phytoremediation of karst lead/zinc mine tailings contaminated soil
The comparative potential of four Compositae plants for phytoremediation of karst lead/zinc mine tailings contaminated soil Open
A tailings concentration gradient experiment was done to demonstrate the comparative evaluation of phytoremediation for Cd, Pb, and Zn in karst lead/zinc mine tailings contaminated soil by four Compositae plants (Crassocephalum crepidioide…
View article: Transition in multi-dimensional leaf traits and their controls on water use strategies of co-occurring species along a soil limiting-resource gradient
Transition in multi-dimensional leaf traits and their controls on water use strategies of co-occurring species along a soil limiting-resource gradient Open
Water use efficiency is among the most important eco-physiological strategies for species adaptation to water-limiting habitats. However, understanding of how co-occurring species adopt diverse water use strategies to cope with water- and …
View article: Continuous Measurements of Temporal and Vertical Variations in Atmospheric CO2 and Its δ13C in and above a Subtropical Plantation
Continuous Measurements of Temporal and Vertical Variations in Atmospheric CO2 and Its δ13C in and above a Subtropical Plantation Open
Atmospheric CO2 dynamics in forest ecosystems are dependent on interactions between photosynthesis, respiration, and turbulent mixing processes; however, the carbon isotopic composition of atmospheric CO2 (δ13C) is not well established due…
View article: Sulfur, lead, and mercury in South Africa coals: existential form of the elements, isotope, and emissions from the coal fired-power plants
Sulfur, lead, and mercury in South Africa coals: existential form of the elements, isotope, and emissions from the coal fired-power plants Open
Coal-fired power plants (CFPPs) are the dominant source of electricity in South Africa due to natural abundance of coal in the country. However, emission of SO 2 , Pb, and Hg has raised serious environmental and public health concerns. Hen…
View article: Effect of NO<sub>X</sub>, O<sub>3</sub> and NH<sub>3</sub> on sulfur isotope composition duringheterogeneous oxidation of SO<sub>2</sub>: a laboratory investigation
Effect of NO<sub>X</sub>, O<sub>3</sub> and NH<sub>3</sub> on sulfur isotope composition duringheterogeneous oxidation of SO<sub>2</sub>: a laboratory investigation Open
Sulfate aerosol is a major fraction of haze, playing an important role in aerosol formation and aging processes. In order to understand the mechanism of sulfate formations, the characteristics of sulfur isotope composition were determined …
View article: Sulfide oxidation affects the preservation of sulfur isotope signals
Sulfide oxidation affects the preservation of sulfur isotope signals Open
The accumulation of oxygen in Earth’s atmosphere and oceans in the late Archean had profound implications for the planet’s biogeochemical evolution. Oxygen impacts sulfur cycling through the oxidation of sulfide minerals and the production…
View article: Global Standard Stratotype-Section and Point (GSSP) for the conterminous base of the Miaolingian Series and Wuliuan Stage (Cambrian) at Balang, Jianhe, Guizhou, China
Global Standard Stratotype-Section and Point (GSSP) for the conterminous base of the Miaolingian Series and Wuliuan Stage (Cambrian) at Balang, Jianhe, Guizhou, China Open
Yuanlong Zhao, Jinliang Yuan, Loren E. Babcock, Qingjun Guo, Jin Peng, Leiming Yin, Xinglian Yang, Shanchi Peng, Chunjiang Wang, Robert R. Gaines, Jorge Esteve, Tongsu Tai, Ruidong Yang, Yue Wang, Haijing Sun, Yuning Yang. Episodes 2019;42…
View article: Effects of Heavy Metal: Copper on the Ultrastructure of Wheat
Effects of Heavy Metal: Copper on the Ultrastructure of Wheat Open
Copper was one of common soil contaminants in China. In order to research the stress mechanism of copper to wheat, the structure of subcellular in mesophyll cell were studied at different copper concentration and growth stage in natural co…