A5023313141- Urban Transport and Accessibility
- Air Quality and Health Impacts
- Healthcare Policy and Management
- Global Cancer Incidence and Screening
- Health disparities and outcomes
- Smoking Behavior and Cessation
- Trauma and Emergency Care Studies
- Spatial and Panel Data Analysis
- Colorectal Cancer Screening and Detection
- Emergency and Acute Care Studies
- Vehicle emissions and performance
- Air Quality Monitoring and Forecasting
- Human Mobility and Location-Based Analysis
- Physical Activity and Health
- Obesity, Physical Activity, Diet
- Data-Driven Disease Surveillance
- COVID-19 epidemiological studies
- Mobile Health and mHealth Applications
- Impact of Light on Environment and Health
- Food Security and Health in Diverse Populations
- Pesticide Exposure and Toxicity
- IoT and GPS-based Vehicle Safety Systems
- Advanced Neural Network Applications
- Transportation Planning and Optimization
- Global Health Care Issues
University of Utah
2016-2025
Arizona State University
2022
American Association for the Surgery of Trauma
2021
Anhui University of Science and Technology
2020
Environmental Research Institute
2018
Beijing University of Posts and Telecommunications
2013-2018
Sultan Zainal Abidin University
2018
University of Nebraska Medical Center
2012-2013
Texas State University
2011
Wuhan University
2007
Gravity-based spatial access models have been widely used to estimate healthcare services in an attempt capture the interaction of various factors. However, these are inadequate informing health resource allocation work due their inappropriate assumption demand. For purpose effective planning, this article proposes a three-step floating catchment area (3SFCA) method minimize healthcare-demand overestimation problem. Specifically, impedance-based competition scheme is incorporated into...
This paper introduces the significance of indoor positioning and analyzes related problems. The latest research on is introduced. Further, accuracy cost typical local wide area systems are compared. results comparison show that Time & Code Division-Orthogonal Frequency Division Multiplexing (TC-OFDM) a system can achieve real-time meter-accuracy in area. Finally, this paper, we indicate seamless high-accuracy development trend positioning. Location Based Services (LBS) architecture based...
Though land use regression (LUR) models have been widely utilized to simulate air pollution distribution, unclear spatial scale effects of contributing characteristic variables usually make results study-specific. In this study, LUR for PM2.5 in Houston Metropolitan Area, US were developed under scales 100 m, 300 500 800 and 1000–5000 m with intervals by employing the idea statistically optimized analysis. Results show that annual average concentration was significantly influenced area...
Abstract Methods of Land Use Regression (LUR) modeling and Ordinary Kriging (OK) interpolation have been widely used to offset the shortcomings PM 2.5 data observed at sparse monitoring sites. However, traditional point-based performance evaluation strategy for these methods remains stagnant, which could cause unreasonable mapping results. To address this challenge, study employs ‘information entropy’, an area-based statistic, along with statistics (e.g. error rate, RMSE ) evaluate LUR model...
Air quality is known to be a key factor in affecting the wellbeing and of life general populous there large body knowledge indicating that certain underrepresented groups may overexposed air pollution. Therefore, more precise understanding pollution exposure as driving cause health disparities between among ethnic racial necessary. Utilizing 52,613 urban census tracts across United States, this study investigates age, racial, educational attainment income differences benzene 1999 case. The...
Purpose: Higher prevalence rates of overweight and obesity in rural America have been consistently reported, but sources these disparities are not well known. This study presented patterns mechanisms among working age Americans. Design: Cross-sectional study. Setting: United States America. Participants: The included 10 302 participants the 2003-2008 National Health Nutrition Examination Survey (NHANES) who were 20 to 64 years old, pregnant, with a body mass index ranging from 18.5 60....
Two-step floating catchment area (2SFCA) methods that account for multiple transportation modes provide more realistic accessibility representation than single-mode methods. However, the use of impedance coefficient in an function (e.g., Gaussian function) introduces uncertainty to 2SFCA results. This paper proposes enhancement multi-modal through incorporating concept a spatial access ratio (SPAR) measurement. SPAR is given place's score mean all scores study area. An empirical on primary...
Importance Hospitals with emergency surgical services provide essential care for a wide range of time-sensitive diseases. Commonly used measures spatial access, such as distance or travel time, have been shown to underestimate disparities compared more comprehensive metrics. Objective To examine population-level differences in access hospitals capability across the US using enhanced 2-step floating catchment (E2SFCA) methods. Design, Setting, and Participants A cross-sectional study 2015...
Digital health and telemedicine are potentially important strategies to decrease care's environmental impact contribution climate change by reducing transportation-related air pollution greenhouse gas emissions. However, we currently lack robust national estimates of emissions savings attributable telemedicine.
Early diagnosis of colorectal cancer (CRC) is important for improving the survival rate disease. Disparities in CRC among different population groups have persisted United States. This study examines whether spatial access to medical services contributes disparities late-stage Texas. Analysis results suggest that there are significant by race/ethnicity, socioeconomic status, and geographic location It concluded primary care associated with stage at diagnosis, but not racial/ethnic disparities.
The purpose of this research was to investigate rural-urban differences in participation rates three modes active commuting (AC) and their built environmental correlates. 2010 Census supplemented with other datasets were used analyze AC percent workers age 16+ walking, biking, or taking public transportation work 70,172 tracts, including 12,844 rural 57,328 urban. Random-intercept factional logit regressions account for zero-inflated data clustering tracts within counties. We found that the...
GIS-based proximity models are one of the key tools for assessment exposure to air pollution when density spatial monitoring stations is sparse. Central that utilizes ‘exposure intensity–distance’ hypothesis. A major weakness in application this hypothesis it does not account Gaussian processes at core physical mechanisms inherent dispersion pollutants.
Abstract Smartphones have emerged as a promising type of equipment for monitoring human activities in environmental health studies. However, degraded location accuracy and inconsistency smartphone‐measured GPS data limited its effectiveness classifying activity patterns. This study proposes fuzzy classification scheme differentiating patterns from smartphone‐collected data. Specifically, logic reasoning was adopted to overcome the influence uncertainty by estimating probability different...
This article conducts in-depth research on the construction of UAV (Unmanned Aerial Vehicle) infrared inspection system for power transmission lines. With increasing complexity system, maintenance and lines have become key to ensuring stable operation system. Traditional manual methods problems such as low efficiency, high cost, safety hazards. study mainly explores application optimized flight path algorithm in line inspection. To verify effectiveness proposed method, this conducted...
The association between exposure to agricultural pesticides and Parkinson's Disease (PD) has long been a topic of study in the field environmental health. This research takes advantage unique Nebraska PD registry state-level crop classification data investigate PD-pesticides relationship.First, Geographic Information System satellite remote sensing were adopted calculate different for residents. An integrated spatial exploratory framework was then explore incidence specific pesticide...
Introduction: Despite growing documentation of the efficacy telemedicine in diabetes management, racial disparities telemedicine-facilitated management remain underexplored. This study examined outcomes between black and white patients with type 2 (T2D) a remote monitoring program. Methods: The analysis sample included 914 T2D 365 Nebraska who completed 3-month patient coaching after hospital discharge from 2014 to 2017. Ordinary least squares regression was estimated examine differences...
This study addresses the challenge of equifinality in agent-based modeling (ABM) by introducing a novel sequential calibration approach. Equifinality arises when multiple models equally fit observed data, risking selection an inaccurate model. In context ABM, such situation might arise due to limitations as aggregating observations into coarse spatial units. It can lead situations where successfully calibrated model parameters may still result reliability issues uncertainties accurately...