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Full-Text Articles in Medicine and Health Sciences

Diarrheal Disease And Household Drinking Water Quality In Bonao, Dominican Republic., Christine E. Stauber, Gloria M. Ortiz, Mark Sobsey Jan 2006

Diarrheal Disease And Household Drinking Water Quality In Bonao, Dominican Republic., Christine E. Stauber, Gloria M. Ortiz, Mark Sobsey

Public Health Faculty Publications

No abstract provided.


The Operation, Flow Conditions And Microbial Reductions Of An Intermittently Operated, Household-Scale Slow Sand Filter, Mark Elliott, Christine E. Stauber, F. Koksal, Kaida R. Liang, D. K. Huslage, Mark Sobsey Jan 2006

The Operation, Flow Conditions And Microbial Reductions Of An Intermittently Operated, Household-Scale Slow Sand Filter, Mark Elliott, Christine E. Stauber, F. Koksal, Kaida R. Liang, D. K. Huslage, Mark Sobsey

Public Health Faculty Publications

Nearly one-fifth of the world's population lacks access to safe, reliable sources of drinking water. Point of use (POU) household water treatment technology allows people to improve the quality of their water by treating it in the home. A promising emerging POU technology is the biosand filter (BSF). The BSF is a household-scale, intermittently operated slow sand filter that maintains a wet media bed containing a schmutzdecke and allows periodic water dosing by the user. Step input chemical tracer tests indicated that the BSF operates at near-plug flow conditions. Six-to-eight week longitudinal challenge studies were conducted with daily charges of …


Observation And Model Error Effects On Parameter Estimates In Susceptible-Infected-Recovered Epidemiological Models, Tom L. Burr, Gerardo Chowell Jan 2006

Observation And Model Error Effects On Parameter Estimates In Susceptible-Infected-Recovered Epidemiological Models, Tom L. Burr, Gerardo Chowell

Public Health Faculty Publications

Recently, confidence intervals (CIs) associated with parameter estimates in the susceptibleinfected-recovered epidemiological model have been developed. When model assumptions are met and the observation error is relatively small, these CIs are relatively short. This work describes the behavior of CIs for parameters as observation and/or equation or model error becomes larger, and includes a comparison of two estimation procedures. One procedure demonstrates significant bias as observation error increases; the other procedure demonstrates significant bias as model error increases.