Xiangjun Zhang

ORCID: 0000-0001-6682-2590
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About
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Research Areas
  • HIV/AIDS Research and Interventions
  • HIV, Drug Use, Sexual Risk
  • HIV Research and Treatment
  • Vaccine Coverage and Hesitancy
  • SARS-CoV-2 and COVID-19 Research
  • International Maritime Law Issues
  • HIV-related health complications and treatments
  • Adolescent Sexual and Reproductive Health
  • Medication Adherence and Compliance
  • COVID-19 Clinical Research Studies
  • HIV/AIDS drug development and treatment
  • COVID-19 Impact on Reproduction
  • Hydraulic Fracturing and Reservoir Analysis
  • Drilling and Well Engineering
  • HIV/AIDS Impact and Responses
  • COVID-19 epidemiological studies
  • Ombudsman and Human Rights
  • Reproductive Biology and Fertility
  • Sparse and Compressive Sensing Techniques
  • Coastal and Marine Management
  • Reproductive System and Pregnancy
  • Arctic and Russian Policy Studies
  • Sex work and related issues
  • Misinformation and Its Impacts
  • Pharmacy and Medical Practices

University of Tennessee Health Science Center
2023-2025

University of Science and Technology of China
2023-2024

University of Memphis
2024

University of Nevada, Reno
2018-2023

Guangxi Center for Disease Prevention and Control
2023

Center for Disease Control
2023

National Center for AIDS/STD Control and Prevention,China CDC
2023

Hunan Normal University
2022-2023

Jiangxi University of Science and Technology
2023

University of Tennessee at Knoxville
2020-2022

To quickly detect and count the number of bayberry trees, this paper improves YOLO-v4 model proposes an optimal method for detecting trees based on UAV images. We used Leaky_ReLU activation function to accelerate extraction speed DIoU NMS retain most accurate prediction boxes. In order increase recall rate object detection construct model, K-Means clustering was embedded into NMS. trained using images it determined that threshold 0.25, which had best effect. The a accuracy up 97.78% 98.16%...

10.1080/17538947.2023.2173318 article EN cc-by International Journal of Digital Earth 2023-03-02

This study compared the immunogenicity of inactivated SARS-CoV-2 vaccines between people living with HIV (PLWH) and HIV-negative individuals. We recruited 120 PLWH 53 individuals aged 18-59 years who had received an vaccine in two Chinese cities April June 2021. Blood samples were tested for vaccines. The prevalence severity adverse events associated similar seropositivity neutralizing activity against authentic SARS-CoV-2, total amount antibody (total antibody) S-IgG 71.3%, 81.9%, 92.6%,...

10.3390/v14020277 article EN cc-by Viruses 2022-01-28

HIV infection is a significant independent risk factor for both severe COVID-19 presentation at hospital admission and in-hospital mortality. Available information has suggested that people living with AIDS (PLWHA) could benefit from vaccination. However, there dearth of evidence on willingness to receive vaccination among PLWHA.The aim this study was investigate national sample PLWHA in China.This cross-sectional online survey investigated factors associated aged 18 65 years eight...

10.2196/31125 article EN cc-by JMIR Public Health and Surveillance 2021-09-20

Linking and engaging HIV-positive patients in care is the key bridging step to glean documented health prevention advantages of antiretroviral therapy (ART). In China, HIV transmission among men who have sex with (MSM) surging, yet many MSM do not use services. We conducted a qualitative study order help positive interventions promote linkage-to-care this population. Four focus group discussions (FGD) were held Beijing, ascertain knowledge, beliefs, attitudes, practices related care. FGD...

10.1089/apc.2015.0296 article EN AIDS Patient Care and STDs 2016-01-19

The objectives of this study are to investigate the incidence and reporting behavior sharp injuries among healthcare workers (HCWs) identify risk factors associated with these injuries.A cross-sectional survey was conducted in February 2017 a provincial teaching hospital China. Data were collected from 901 HCWs using self-administered questionnaire which included demographic information, experience, injuries. Stepwise logistical regression used analyze factors.HCWs (248 [27.5%]) had...

10.1186/s12199-017-0691-y article EN cc-by Environmental Health and Preventive Medicine 2018-01-09

Depression and anxiety are common among persons recently diagnosed with HIV infection. We examined whether depression or was associated delayed initiation of antiretroviral therapy (ART) a prospective cohort Chinese men who have sex (MSM) were newly HIV. The Hospital Anxiety Scale (HADS) used for measuring anxiety, scores 0–7, 8–10, 11–21 representing normal, borderline, likely, respectively. ART information extracted from the National Database. Cox regression performed to assess...

10.1089/apc.2016.0214 article EN AIDS Patient Care and STDs 2017-02-01

Many countries and organizations recommended people living with HIV/AIDS (PLWHA) receive the COVID-19 vaccine. However, vaccine hesitancy still exists becomes a barrier for promoting vaccination among PLWHA.This study aims to investigate factors that contributed PLWHA.The used multicenter cross-sectional design an online survey mode. We recruited PLWHA aged 18-65 years from 5 metropolitan cities in China between January 2021 February 2021. Participants completed through Golden Data, widely...

10.2196/33995 article EN cc-by JMIR Public Health and Surveillance 2022-04-29

The Centers for Medicare & Medicaid Services tested the Part D Senior Savings Model ("PDSS Model") in 2021, capping monthly out-of-pocket (OOP) insulin costs at $35. Diabetes disproportionately affects racial/ethnic minorities compared to their non-Hispanic White (White) counterparts, so this study changes disparities healthcare among users between and non-Medicare populations 2021. This analyzed Medical Expenditure Panel Survey (2020-2021). intervention group comprised beneficiaries aged...

10.1080/03007995.2025.2479780 article EN Current Medical Research and Opinion 2025-03-14

For the new signal acquisition methodology of compressive sensing (CS) a challenge is to find space in which sparse and hence recoverable faithfully. Given nonstationarity many natural signals such as images, varying time or spatial domain. As such, CS recovery should be conducted locally adaptive, signal-dependent spaces counter fact that measurements are global irrespective structures. On contrary existing reconstruction methods use fixed set bases (e.g., wavelets, DCT, gradient spaces)...

10.1109/dcc.2009.69 article EN Data Compression Conference 2009-03-01

In compressive sensing (CS), a challenge is to find space in which the signal sparse and, hence, faithfully recoverable. Since many natural signals such as images have locally varying statistics, varies time/spatial domain. As such, CS recovery should be conducted adaptive signal-dependent spaces counter fact that measurements are global and irrespective of structures. On contrary, existing reconstruction methods use fixed set bases (e.g., wavelets, DCT, gradient spaces) for entirety signal....

10.1109/tip.2011.2163520 article EN IEEE Transactions on Image Processing 2011-08-15

Background People living with HIV (PLWH) are more vulnerable to SARS-CoV-2. However, evidence on the immunogenicity of coronavirus disease 2019 (COVID-19) vaccines in this population is insufficient. The objective study assess and safety two-dose schedule Sinovac CoronaVac for 6 months postvaccination PLWH. Methods We conducted a multicenter prospective cohort among PLWH HIV-negative adults China. Participants who received two doses prior recruitment were allocated into groups followed up...

10.3389/fimmu.2023.1129651 article EN cc-by Frontiers in Immunology 2023-03-13

The leaf area index (LAI) is an important agroecological physiological parameter affecting vegetation growth. To apply the genetic algorithms neural network model (GANNM) to remote sensing inversion of winter wheat LAI throughout growth cycle and based on GaoFen-3 Synthetic aperture radar (GF-3 SAR) images GaoFen-1 Wide Field View (GF-1 WFV) images, Xiangfu District in east Kaifeng City, Henan Province, was selected as testing region. Winter data from five stages were combined, optical...

10.1080/17538947.2022.2028913 article EN cc-by International Journal of Digital Earth 2022-02-10

Older people living with HIV (PLWH) may have delayed diagnosis and access to care therefore poorer disease outcomes. Little is known about outcomes among older PLWH in China. This retrospective cohort study used data from all adult HIV/AIDS cases during 1988-2017 Chongqing, China two national databases. We compared demographic behavioral profiles, care, virologic suppression, mortality between age groups of 18-49 ≥50 years. Multivariate logistic cox regression analyses were calculate...

10.1089/aid.2019.0096 article EN cc-by AIDS Research and Human Retroviruses 2019-09-21

This retrospective cohort study investigated older people living with HIV/AIDS (PLWHA) characteristics, HIV care, and treatment outcomes among all cases between 1996 2019 in Guangxi, China. Secondary data were extracted from two national surveillance databases. Older (≥50 years old) younger (18-49 PLWHA compared regarding demographic behavioral virologic failure, all-cause mortality. accounted for 41.6% of (N = 144,952) 2019. The proportion increased 10.4% to 64.8% men 2.4% 66.7% women 2002...

10.1080/09540121.2022.2099513 article EN AIDS Care 2022-07-17

Acephalic spermatozoa syndrome is a rare type of teratozoospermia causing male infertility due to detachment the sperm head and flagellum, which precludes fertilization potential. Although loss-of-function variations in several genes, including TSGA10, have been associated with acephalic syndrome, genetic cause many cases remains unclear. We recruited Pakistani family two infertile brothers who suffered from syndrome. Through whole-exome sequencing (WES) followed by Sanger sequencing, we...

10.1186/s12610-024-00220-7 article EN cc-by Basic and Clinical Andrology 2024-02-05
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