Article
Immunology
Yi-Qiang Lin, Ya-Ling Gao, Mao Wang, Shui-Di Yan, Li-Rong Lin
Summary: This study investigates the clinical characteristics of patients with false-positive HIV screening test results and identifies potential diseases unrelated to HIV. Characterization of these patients can help in interpreting HIV screening test results.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2022)
Article
Chemistry, Medicinal
Huan Xia, Juan Jin, Huanhuan Ba, Yuan Zhang, Jiajia Li, Rui Guo, Ying Li, Ping Ma, Yan Zhang
Summary: This study investigated the distribution of HIV-1 genotypes and the prevalence of pretreatment drug resistance in antiretroviral-naive HIV-1 infected individuals in Xi'an, China. The most prevalent HIV-1 genotype was CRF07_BC, and the prevalence of pretreatment drug resistance was 18.3%, with higher resistance observed in non-nucleoside reverse transcriptase inhibitors (NNRTIs) compared to nucleoside reverse transcriptase inhibitors (NRTIs) and protease inhibitors. The study highlights the importance of screening for baseline drug resistance in newly diagnosed HIV-1 individuals.
DRUG DESIGN DEVELOPMENT AND THERAPY
(2023)
Article
Water Resources
Hao Han, Jingming Hou, Rengui Jiang, Jiahui Gong, Ganggang Bai, Yongde Kang, Wenchao Qi, Yuan Li, Bingyao Li
Summary: The study quantitatively explored the spatial and temporal variations of precipitation in Xi'an city, showing a significant decreasing trend in annual precipitation. The results indicated that summer precipitation slightly increased, while other seasons showed similar decreasing trends. The monthly precipitation had different change trends, with June to September accounting for 58.4% of the total annual precipitation.
JOURNAL OF WATER AND CLIMATE CHANGE
(2021)
Article
Infectious Diseases
Shigeru Kusagawa, Ai Kawana-Tachikawa, Keiji Matsubayashi, Yuji Hoshi, Ken Ishimaru, Isao Hamaguchi
Summary: Geenius shows strong performance in HIV confirmatory and HIV-1 differentiation tests, but its reliability in HIV-2 differentiation is less when visual reading is used. Use of the Geenius Reader is preferable for more reliable HIV-1/HIV-2 differentiation, especially with sporadic cases of HIV-2 infection reported in Japan.
BMC INFECTIOUS DISEASES
(2021)
Article
Public, Environmental & Occupational Health
Chenxi Zhao, Kun Liu, Chenghao Jiang, Xiao Wei, Shuxuan Song, Xubin Wu, Xiaohui Wen, Ting Fu, Li Shen, Zhongjun Shao, Qian Li
Summary: Human brucellosis has re-emerged in China since the mid-1990s, with a shift in geographic expansion from traditional livestock regions to inland areas. Neglected in non-traditional epidemic areas, it poses a serious threat to public health in big cities. A retrospective epidemiological study in Xi'an, the largest city in northwestern China, revealed significant heterogeneity between local and non-local cases of brucellosis. The study also identified risk factors and highlighted the importance of prioritizing prevention and control efforts in large and medium-sized cities. The study provides a baseline for understanding the re-emergence of human brucellosis in non-epidemic areas and its implications for public health.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Multidisciplinary Sciences
Bei Gao, Lirong Wang, Anthony J. Santella, Guihua Zhuang, Ruizhe Huang, Boya Xu, Yujiao Liu, Shuya Xiao, Shifan Wang
Summary: This study assessed HIV testing behaviors and willingness to receive oral rapid HIV testing (ORHT) among dental patients in Xi'an, China. The majority of dental patients had not previously received an HIV test, but many were receptive to being tested in the dental setting. Factors affecting the willingness to receive ORHT included age, HIV/AIDS knowledge score, previous HIV test experience, advanced HIV testing knowledge, and advanced ORHT knowledge.
Article
Environmental Sciences
Zedong Wang, Runyu Wang, Jingzhi Wang, Yumeng Wang, Neil McPherson Donahue, Rongzhi Tang, Zhibao Dong, Xiaoping Li, Lijun Wang, Yongming Han, Junji Cao
Summary: Xi'an, as an important central city in western China, has taken many measures to improve air quality in recent years. This study monitored PM2.5 samples in Xi'an from 2017 to 2018 and assessed the air quality by analyzing organic carbon, elemental carbon, water soluble ions, and elements. The results showed that PM2.5 concentration in Xi'an was highest in winter and lowest in summer. The study also found strong secondary generation of sulfate and nitrate in spring, and formation of secondary organic carbon in all seasons. The composition of PM2.5 changed significantly during sandstorms and the Spring Festival, with different pollution sources contributing to PM2.5 in different events.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Zeyuan Yang, Shuxing Li, Sirui Ma, Peng Liu, Dan Peng, Zhuozhi Ouyang, Xuetao Guo
Summary: This study systematically investigated the transportation, characteristics and fate of MPs in both sewage and sludge of WWTP in Xi'an, a western region of China. The results showed that the abundance of MPs decreased from the influent to the effluent, with the best removal effect in the secondary treatment. The distribution of MPs with different characteristics constantly changed with the treatment process, leading to differences in the distribution of MPs in sludge and sewage.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Xiaoqin Yu, Yimo Zhao, Chutian Zhang, Chengfang Yang, Zhuozhi Ouyang, Peng Liu, Xuetao Guo, Lingyan Zhu
Summary: The study investigated the pollution of microplastics (MPs) in the water and sediment of Xi'an, the largest city in northwest China. MPs were mainly in fiber and fragment shapes, with the highest abundance in tourism and residential areas, indicating the impact of human activities. The research highlights the importance of monitoring and mitigating urban MPs pollution, with parks acting as significant sinks for MPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Construction & Building Technology
Yuanjun Xu, Jiading Wang, Tianfeng Gu, Dengfei Zhang, Weiqian Ma
Summary: This paper investigates the collapsibility loess in the south extension section of Xi'an Metro Line 2 through a large-scale site immersion test, revealing the characteristics of the soil layer and its deformation behavior. The research results suggest that the paleosol layer may act as a bridge to support the overlying soil layer, and the influence between the infiltrated and saturated zones gradually increases with depth, with the saturated zone generally smaller than the infiltrated zone.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Medicine, General & Internal
Li Zhang, Minjie Liu, Jianying Li, Xiaoli Li, Li Cheng, Yahong Ji, Na Li, Junning Wang
Summary: The imported COVID-19 cases in Xi'an were mainly young and middle-aged adults with mild or moderate symptoms who had a low rate of comorbidity, showed favorable laboratory and chest CT images, and had a better prognosis. Notably, for suspected COVID-19 cases, at least three consecutive nucleic acid tests should be carried out to avoid missed detection of infected patients. High-level medical resources are not necessary in most cases.
INTERNATIONAL JOURNAL OF GENERAL MEDICINE
(2021)
Article
Environmental Sciences
Menghe Huang, Zhenying Zhang, Bin Zhu, Jiahe Zhang, Hui Xu
Summary: The shear strength of municipal solid waste in a landfill in Xi'an, China increases with both landfill age and moisture content. This study provides valuable reference for stability calculations of MSW landfills.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Menghe Huang, Zhenying Zhang, Bin Zhu, Jiahe Zhang, Hui Xu
Summary: This study investigated the stability of municipal solid waste (MSW) landfills by analyzing the effects of landfill age and moisture content on the shear strength of MSW. The results demonstrate that both landfill age and moisture content have a significant impact on the shear strength, cohesive force, and internal friction angle of MSW.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Geological
Hao Wu, Shuai Shao, Shengjun Shao, Shaoying Zhang, Zechi Wang
Summary: This study investigates the behavior of the dynamic shear modulus of undisturbed loess under dry-wet cycles and stress conditions. The findings show that the dry-wet cycles significantly affect the dynamic shear modulus, especially during the initial cycles. The relationship between N and G0/Pa/(σv/Pa)n is a power function, and G0/Pa/(σv/Pa)n decreases with increasing w1 and N. However, the fitting parameters a of the dynamic shear modulus ratio normalization model are not sensitive to σv/Pa, N, and w1. A damage degree prediction method considering N, w1, and σv is established based on the dynamic shear modulus.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Environmental Sciences
Marianne Glasius, Ditte Thomsen, Kai Wang, Louise Skov Iversen, Jing Duan, Ru-Jin Huang
Summary: This study investigated the speciation and levels of organosulfates, organosulfonates, and carboxylic acids in aerosol samples collected in Xi'an, Northwest China, during the summer and winter seasons. The results provide insights into the composition and sources of organic aerosols in this heavily polluted region.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)