Search

Your search keyword '"Hu, Yuehua"' showing total 378 results
Start Over Author "Hu, Yuehua" Search Limiters Available in Library Collection
378 results on '"Hu, Yuehua"'

4. Spatial Dynamics of Chickenpox Outbreaks in Rapidly Developing Regions: Implications for Global Public Health*.

Author

Wang, Li, Wang, Miaomiao, Xu, Chengdong, Wang, Peihan, You, Meiying, Li, Zihan, Chen, Xinmei, Liu, Xinyu, Li, Xudong, Wang, Yuanyuan, Hu, Yuehua, and Yin, Dapeng

Subjects
CHICKENPOX, RENTAL housing, SOCIOECONOMIC factors, INFECTIOUS disease transmission, RESIDENTIAL areas
Abstract

The occurrence of chickenpox in rapidly developing areas poses substantial seasonal risk to children. However, certain factors influencing local chickenpox outbreaks have not been studied. Here, we examined the relationship between spatial clustering, heterogeneity of chickenpox outbreaks, and socioeconomic factors in Southern China. We assessed chickenpox outbreak data from Southern China between 2006 and 2021, comprising both relatively fast-growing parts and slower sub-regions, and provides a representative sample of many developing regions. We analyzed the spatial clustering attributes associated with chickenpox outbreaks using Moran's I and local indicators of spatial association and quantified their socioeconomic determinants using Geodetector q statistics. There were significant spatial heterogeneity in the risk of chickenpox outbreaks, with strong correlations between chickenpox risk and various factors, particularly demographics and living environment. Furthermore, interactive effects among specific are factors, such as population density and per capita residential building area, percentage of households with toilets, percentage of rental housing, exhibited q statistics of 0.28, 0.25, and 0.24, respectively. This study provides valuable insights into the spatial dynamics of chickenpox outbreaks in rapidly developing regions, revealing the socioeconomic factors affecting disease transmission. These implications extend the formulation of effective public health strategies and interventions to prevent and control chickenpox outbreaks in similar global contexts. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

43. Demographic composition, not demographic diversity, predicts biomass and turnover across temperate and tropical forests

Author

Jessica F. Needham, Daniel J. Johnson, Kristina J. Anderson‐Teixeira, Norman Bourg, Sarayudh Bunyavejchewin, Nathalie Butt, Min Cao, Dairon Cárdenas, Chia‐Hao Chang‐Yang, Yu‐Yun Chen, George Chuyong, Handanakere S. Dattaraja, Stuart J. Davies, Alvaro Duque, Corneille E. N. Ewango, Edwino S. Fernando, Rosie Fisher, Christine D. Fletcher, Robin Foster, Zhanqing Hao, Terese Hart, Chang‐Fu Hsieh, Stephen P. Hubbell, Akira Itoh, David Kenfack, Charles D. Koven, Andrew J. Larson, James A. Lutz, William McShea, Jean‐Remy Makana, Yadvinder Malhi, Toby Marthews, Mohizah Bt. Mohamad, Michael D. Morecroft, Natalia Norden, Geoffrey Parker, Ankur Shringi, Raman Sukumar, Hebbalalu S. Suresh, I‐Fang Sun, Sylvester Tan, Duncan W. Thomas, Jill Thompson, Maria Uriarte, Renato Valencia, Tze Leong Yao, Sandra L. Yap, Zuoqiang Yuan, Hu Yuehua, Jess K. Zimmerman, Daniel Zuleta, and Sean M. McMahon

Subjects
forest dynamics, Global and Planetary Change, Tropical Climate, Ecology, carbon residence time, Climate Change, Biological Sciences, Ecology and Environment, Environmental Chemistry, Biomass, species richness, aboveground biomass, ForestGEO, size-dependent survival, tree demography, Environmental Sciences, Ecosystem, General Environmental Science, Demography
Abstract

The growth and survival of individual trees determine the physical structure of a forest with important consequences for forest function. However, given the diversity of tree species and forest biomes, quantifying the multitude of demographic strategies within and across forests and the way that they translate into forest structure and function remains a significant challenge. Here, we quantify the demographic rates of 1961 tree species from temperate and tropical forests and evaluate how demographic diversity (DD) and demographic composition (DC) differ across forests, and how these differences in demography relate to species richness, aboveground biomass (AGB), and carbon residence time. We find wide variation in DD and DC across forest plots, patterns that are not explained by species richness or climate variables alone. There is no evidence that DD has an effect on either AGB or carbon residence time. Rather, the DC of forests, specifically the relative abundance of large statured species, predicted both biomass and carbon residence time. Our results demonstrate the distinct DCs of globally distributed forests, reflecting biogeography, recent history, and current plot conditions. Linking the DC of forests to resilience or vulnerability to climate change, will improve the precision and accuracy of predictions of future forest composition, structure, and function.

Published
2022
Full Text
View/download PDF

47. Analysis of the Selective Flotation of Elemental Gold from Pyrite Using Diisobutyl Monothiophosphate.

Author

Liu, Weiping, Miller, Jan Dean, Sun, Wei, and Hu, Yuehua

Subjects
FRONTIER orbitals, PYRITES, MOLECULAR dynamics, COPPER ores, GOLD
Abstract

The gold contained in copper ores is an important resource for the gold industry. In some cases, elemental gold is present and can be recovered by selective flotation. It has been reported that the gold grade and recovery can be increased, without sacrificing the copper recovery, by replacing AERO 3477 (diisobutyl dithiophosphate (DTP)) with AERO 7249 (mixture of diisobutyl monothiophosphate (MTP) and diisobutyl dithiophosphate (DTP)) as the main collector. The fundamental understanding of the improvement in selectivity with the addition of MTP in the flotation of elemental gold from pyrite is limited and is the subject of this paper. In this regard, the hydrophobicity and selectivity of DTP and MTP in the flotation of pyrite and gold are compared and discussed. Density functional theory (DFT) was used to examine the electron density, reactivity, highest occupied molecular orbital (HOMO), and lowest unoccupied molecular orbital (LUMO) of the MTP and DTP collectors. The interaction energies for the adsorption of MTP and DTP from fresh pyrite, oxidized pyrite and gold surfaces were calculated and discussed with respect to the experimental results reported in the literature. Molecular dynamics simulation (MDS) was used to examine the adsorption state of MTP and DTP on the pyrite (100) and Au (111) surfaces. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results