A5039029839- Urban Transport and Accessibility
- Geotechnical Engineering and Analysis
- Soil Mechanics and Vehicle Dynamics
- Health disparities and outcomes
- Advanced Causal Inference Techniques
- Climate Change and Health Impacts
- Urban Green Space and Health
- Obesity, Physical Activity, Diet
- Children's Physical and Motor Development
- Landslides and related hazards
- Geotechnical Engineering and Soil Stabilization
- Agricultural Engineering and Mechanization
- Organ Donation and Transplantation
- Renal Transplantation Outcomes and Treatments
- Geotechnical Engineering and Underground Structures
- Physical Activity and Health
- Granular flow and fluidized beds
- Soil and Unsaturated Flow
- Cardiovascular and exercise physiology
- Public Health Policies and Education
- Injury Epidemiology and Prevention
- Media Influence and Politics
- Food Security and Health in Diverse Populations
- Human Mobility and Location-Based Analysis
- Traffic and Road Safety
University of California, San Diego
2023-2025
Scripps Institution of Oceanography
2023-2025
Colorado State University
2022-2024
Human Longevity (United States)
2023
Emory University
2014-2023
Centers for Disease Control and Prevention
2023
Novem (Netherlands)
2023
Georgia Department of Public Health
2018
Carleton University
1979-1984
Technion – Israel Institute of Technology
1976-1984
The problem of limiting equilibrium a slope in state plane strain is formulated terms the variational calculus. Formulated that way, analysis carried out without any priori assumptions with respect to shape slip surface, or normal stress distribution along it. Thus, on basis only formal definition concepts equilibrium, and factor safety strength, it proven minimal must occur surfaces special geometrical property. This property ensures resultant infinitesimal frictional forces either pass...
The impact of a new national kidney allocation system (KAS) on access to the deceased-donor waiting list (waitlisting) and racial/ethnic disparities in waitlisting among US end-stage renal disease (ESRD) patients is unknown. We examined pre- post-KAS incident (N = 1 253 100) prevalent 556 954) ESRD from United States Renal Data System database (2005-2015) using multivariable time-dependent Cox interrupted time-series models. adjusted rate was 9% lower (hazard ratio [HR]: 0.91; 95% confidence...
An analytical framework for predicting the ground pressure distribution and tractive performance of tracked vehicles is presented. It takes into account all major design parameters vehicle as well pressure—sinkage shearing characteristics response to repetitive loading terrain. The subsequent substantiation method by means full-scale tests made with an instrumented described. A comparison between theoretical prediction test results it found that there a fairly close agreement them. This...
In addition to excess adiposity, low cardiorespiratory fitness (CRF) and musculoskeletal (MSF) are important independent risk factors for future cardio-metabolic disease in adolescents, yet global surveillance adolescents is poor. The objective of this study was describe investigate geographical variation levels health-related physical fitness, including CRF, MSF, body mass index (BMI), waist circumference (WC) Chilean 8th graders.This cross-sectional based on a population-based,...
We discuss how epidemiology has been and can continue to be used advance understanding of the links between urban areas health informed by an existing urban-health conceptual framework. This framework considers as contexts for health, determinants modifiers pathways, part a complex system that affects health. highlight opportunities descriptive inform context example, characterizing social physical environments give rise actions change those conditions. then describe inferential tools...
There is considerable policy interest in home-based screening campaigns for hypertension many low- and middle-income countries. However, it unclear whether such efforts will result long-term population-level blood pressure improvements without more comprehensive interventions that strengthen the entire care continuum. Using multiple waves of South African National Income Dynamics Study regression discontinuity design, we evaluated impact on two-year change pressure. We found intervention...
A general limit equilibrium approach has been applied to the problem of bearing capacity foundations. The is completely rigorous in sense that critical rupture surface and stress distribution along it are derived by variational methods without any a priori assumptions. proven be log-spiral, which degenerates circular arc case frictionless soil. superposition principle was assumed Terzaghi use analysis. values obtained factors Nc(φ) Nq(gf) corresponds closely from plasticity theory. N/dγ(φ)...
<ns3:p>We discuss how epidemiology has been and can continue to be used advance understanding of the links between urban areas health informed by an existing urban-health conceptual framework. This framework considers as contexts for health, determinants modifiers pathways, part a complex system that affects health. We highlight opportunities descriptive inform context example, characterizing social physical environments give rise actions change those conditions. then describe inferential...
Background: Bicycling is an important form of physical activity in populations. Research assessing the effect infrastructure on bicycling with high-resolution smartphone data emerging several places, but it remains limited low-bicycling US settings, including Southeastern US. The Atlanta area has been expanding its bicycle infrastructure, off-street paved trails such as BeltLine and some protected bike lanes. Methods: Using generalized synthetic-control method, we estimated effects five...
Many of the problems encountered in Soil Mechanics are extreme-value type. Such are, e.g., stability slopes, bearing capacity foundations, limiting forces (active and passive) acting on retaining structures, etc.
Commercially-available location-based services (LBS) data derived primarily from mobile devices may provide an alternative to surveys for monitoring physically-active transportation. Using Spearman correlation, we compared county-level metrics of walking and bicycling StreetLight with commuting among U.S. workers the American Community Survey. Our strongest pair ranked counties (n = 298) similarly (rho 0.53 [95% CI: 0.44–0.61]) 0.61 [0.53–0.67]). Correlations were higher denser more urban...
Cities often use non-native plants such as turf grass to expand green space. Native plants, however, may require less water and maintenance have co-benefits for local biodiversity, including pollinators. Previous studies estimating mortality averted by adding space not considered the provision of native part greening policies.We aim estimate premature deaths that would be prevented implementation native-plants policy scenarios in City Denver, Colorado, USA.After conducting interviews with...
Abstract Urban green space and urban compactness are each important principles for designing healthy, climate-resilient cities. The can co-exist, but greening may come at density’s expense if not considered deliberately. Existing studies estimating health impacts of scenarios have what level greenness is attainable different population densities. Here, using the square kilometer as unit analysis, we estimate non-accidental mortality that could be prevented among adults older than 30 by small...
The study of the impact Medicaid expansion on cardiovascular disease mortality by Nianogo and colleagues1 in this issue joins a growing body epidemiologic research using methods for group-level longitudinal data to estimate effects social policies population health.2 et al. use generalized synthetic control method their analyses,3 member family used estimating treatments (e.g., interventions, actions, events) time-series cross-sectional data, also known as "panel" data.3,4 In its usual...
IntroductionThe Allocation System Changes for Equity in Kidney Transplantation (ASCENT) trial was a cluster-randomized pragmatic, effectiveness-implementation study designed to test whether multicomponent educational intervention targeting leadership, clinic staff, and patients dialysis facilities improved knowledge awareness of the 2014 (KAS) change.MethodsParticipants included 690 facility medical directors, nephrologists, social workers, other staff within 655 US facilities, with 51% (n =...