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Yasuyuki Akita, Ph.D.

Postdoctoral Research Associate

 

Environmental Sciences and Engineering

Gillings School of Global Public Health

University of North Carolina at Chapel Hill

CB # 7431, 014 Rosenau Hall

Chapel Hill, NC 27599

Email: akita@email.unc.edu

Office: 919-966-1095

 

 

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EDUCATION

Ph.D.

2010

University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

Environmental Sciences and Engineering

Advisor: Dr. Marc L. Serre

Dissertation: Spatial statistics and regression analysis of environmental exposure and disease: From air pollution and microbial groundwater contamination assessment to diarrhea disease mapping

MS

2005

University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

Environmental Sciences and Engineering

Advisor: Dr. Marc L. Serre

Thesis: Spatiotemporal non-attainment assessment analysis of the surface water quality standard for tetrachloroethene in the state of New Jersey

MS

1998

Sophia University, Tokyo, Japan

Physics

Advisor: Dr. Tomi Ohtsuki

Thesis: Localization of phonon in disordered lattice

BS

1996

Sophia University, Tokyo, Japan

Physics

 

 

RESEARCH INTEREST

Environmental Modeling and Mapping, Space/Time Geostatistics, Exposure Assessment, GIS in Public Health, Environmental Informatics, Environmental Epidemiology

 

 

SOFTWARE DEVELOPMENT

BMEGUI (URL: http://www.unc.edu/depts/case/BMEGUI/)

ArcGIS toolbox providing the graphical user interface for space/time geostatistics modeling based on the Bayesian Maximum Entropy (BME) method

MPN Calculator (URL: http://www.unc.edu/depts/case/BMElab/MPNcalculator/MPNcalc.html)

Matlab and R functions allowing you to calculate the most probable number, statistical estimator of microbial density in the sample, and associated confidence bound

 

 

COMPUTING SKILLS

·         Microsoft Certified Systems Engineer (NT 4.0 Track)

·         GIS: ArcGIS, SatScan, GeoDa

·         Database: MS Access, SQL

·         Statistical/Mathematical Computing Environment: Matlab, R, Mathematica, WinBUGS

·         Languages: Python, Visual Basic

 

 

PROFESSIONAL EXPERIENCE

Postdoctoral research associate (June 2010 – Present)

Dept. of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill

Research assistant (June 2005 – December 2005)

Dept. of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill

Systems Engineer (April 1998 – September 2002)

Compaq Computer K.K., Tokyo, Japan

 

 

AWARDS

Third place poster award given by the EPA Science Forum 2006 for a poster titled “Research Translation in Spatiotemporal Exposure Assessment for Contaminated River Superfund Site”

 

 

PUBLICATIONS

Refereed (published)

·         van Geen, A., K.M. Ahmed, Y. Akita, Md.J. Alam, P.J. Culligan, J. Feighery, A.S. Ferguson, M. Emch, V. Escamilla, P.S.K. Knappett, A.C. Layton, B.J. Mailloux, L.D. McKay, J.L. Mey, M.L. Serre, P.K. Streatfield, J. Wu, and Md. Yunus. (2011) Fecal contamination of shallow tubewells in Bangladesh inversely related to arsenic, Environmental Science and Technology, Vol. 45, Issue 4, pp. 1199-1205 (DOI: 10.1021/es103192b)

·         Knappett, P.S.K., A. Layton, L.D. McKay, D. Williams, B.J. Mailloux, Md.R. Huq, Md.J. Alam, K.M. Ahmed, Y. Akita, M.L. Serre, G.S. Sayler, A. van Geen. (2011) Efficacy of Hollow-Fiber Ultrafiltration for Microbial Sampling in Groundwater, Ground Water, Vol. 49, Issue 1, pp. 53-65 (DOI: 10.1111/j.1745-6584.2010.00712.x)

·         Akita, Y., G. Carter, and M.L. Serre (2007) Spatiotemporal Non-Attainment Assessment of Surface Water Tetrachloroethene in New Jersey, Journal of Environmental Quality, Vol. 36, No. 2, pp. 508-520.

·         Akita, Y., and T. Ohtsuki (1998) Anderson transition of three dimensional phonon modes, J. Phys. Soc. Jpn. Vol 67: 2954

Non-refereed

·         Akita, Y. (2010) Spatial statistics and regression analysis of environmental exposure and disease: From air pollution and microbial groundwater contamination assessment to diarrhea disease mapping (Doctoral Dissertation)

·         Akita, Y. (2005) Spatiotemporal Non-Attainment Assessment Analysis of The Surface Water Quality Standard for Tetrachloroethene in The Streams of New Jersey (Master Thesis)

Conference Papers & Published Abstracts

·         Akita, Y., V. Escamilla, M.E. Emch, M.L. Serre (2008) Space/time analysis of Cholera and Shigella incidence rates across a region of Bangladesh, Epidemiology, Vol. 19 (6), pp. S204-S204.

·         Akita, Y., J. Leber, Peter S.K. Knappett, J. Feighery,  L.E. Band, M.E. Emch, B.J. Mailloux, P.J. Culligan, A.C. Layton, L.D. McKay, A. Van Geen, M.L. Serre (2008) Spatial analysis of the distribution of bacterial pathogen indicators across shallow aquifers in Bangladesh, Epidemiology, Vol. 19 (6), pp. S205-S205.

In Preparation

·         Messier, K., Y. Akita, and M.L. Serre. Integrating Address Geocoding, Land Use Regression, and Spatiotemporal Geostatistical Estimation for Groundwater Tetrachloroethylene, Submitted to Environmental Science and Technology

·         Wu, J., Md. Yunus, P.K. Streatfield, A. van Geen, V. Escamilla, Y. Akita, M.L. Serre, and M. Emch. Increase in diarrheal disease associated with arsenic mitigation in Bangladesh, In preparation

·         Akita Y., JC. Chen, M.L. Serre, The moving-window Bayesian Maximum Entropy framework: Estimation of PM2.5 yearly average concentration across the contiguous United States, In preparation

·         Akita, Y., M. Emch, A. van Geen, Md. J. Alam, J. Feighery, V. Escamilla, P. Knappett, A. Ferguson, K. M. Ahmed, Md. Yunus, L. Band, P. J. Culligan, A. C. Layton, B. J. Mailloux, L. D. McKay, M. L. Serre. Influence of rainfall on the spatial variability of fecal indicator bacteria across tubewells in a village of Matlab, Bangladesh, In preparation

·         Akita, Y., M. Emch, A. van Geen, Md. J. Alam, J. Feighery, V. Escamilla, P. Knappett, A. Ferguson, K. M. Ahmed, Md. Yunus, L. Band, P. J. Culligan, A. C. Layton, B. J. Mailloux, L. D. McKay, M. L. Serre. Space/time statistical estimation of fecal indicator bacteria across drinking wells in Bangladesh using latrine locations and rainfall, In preparation

·         Akita, Y., V. Escamilla, J. Wu, M. Emch, Md. Yunus, P. K. Streatfield, P. J. Culligan, A. C. Layton, B. J. Mailloux, L. D. McKay, A. van Geen, M. L. Serre. Inter annual variability of community surveyed diarrheal disease among children from 2000 to 2002 in Matlab, Bangladesh, In preparation

 

 

PRESENTATIONS

·         Akita, Y., V. Escamilla, M. Emch, J. Feighery, P. Knappett, A. Ferguson, Md. J. Alam, K.M. Ahmed, M. Yunus, K. Streatfield, L. Band, P.J. Culligan, A.C. Layton, B.J. Mailloux, L.D. McKay, A. van Geen, M.L. Serre, 2010. Effect of Latrines on the Spatiotemporal Distribution of E. Coli Concentration Across Tubewells in Rural Bangladesh, Water and Health: Where Sciences Meets Policy, Poster Presentation, Chapel Hill, NC, USA, October 3-7.

·         Akita, Y., M. Emch, A. van Geen, Md. J. Alam, J. Feighery, V. Escamilla, P. Knappett, A. Ferguson, K.M. Ahmed, M. Yunus, L. Band, P.J. Culligan, A.C. Layton, B.J. Mailloux, L.D. McKay, M.L. Serre, 2010. Hydrology Driven Changes in the Extend of Groundwater Fecal Contamination in a Shallow Aquifer in Bangladesh, Water and Health: Where Sciences Meets Policy, Poster Presentation, Chapel Hill, NC, USA, October 3-7.

·         A. van Geen, P.J. Culligan, J. Feighery, A.S. Ferguson, M. Emch, V. Escamillo, J. Wu, A.C. Layton, B.J. Mailloux, L.D. McKay, P. Knappett, .M.L. Serre, Y. Akita, P.K. Streatfield, M. Yunus, K.M. Ahmed, M.R. Huq, M.J. Alam, 2010. Fecal contamination in tubewell water of Bangladesh: Part I - Spatial and temporal patterns, Ecology and Evolution of Infectious Diseases 2010, Oral Presentation, Atlantic City, NJ, USA, March 22 – 25.

·         V. Escamillo, M. Emch, P.J. Culligan, J. Feighery, A.S. Ferguson, J. Wu, A.C. Layton, B.J. Mailloux, L.D. McKay, P. Knappett, M.L. Serre, Y. Akita, P.K. Streatfield, M. Yunus, K.M. Ahmed, M.R. Huq, M.J. Alam, A. van Geen, 2010. Fecal contamination in tubewell water of Bangladesh: Part II - Impact on diarrheal disease, Ecology and Evolution of Infectious Diseases 2010, Oral Presentation, Atlantic City, NJ, USA, March 22 – 25.

·         A.C. Layton, B.J. Mailloux, P.J. Culligan, J. Feighery, A.S. Ferguson, M. Emch, V. Escamillo, J. Wu, L.D. McKay, P. Knappett, M.L. Serre, Y. Akita, P.K. Streatfield, M. Yunus, K.M. Ahmed, M.R. Huq, M.J. Alam, A. van Geen, 2010. Fecal contamination in tubewell water of Bangladesh: Part III - Pathogens and indicators, Ecology and Evolution of Infectious Diseases 2010, Poster Presentation, Atlantic City, NJ, USA, March 22 – 25.

·         Y. Akita, J. Feighery, P. Knappett, P.J. Culligan, L.D. McKay, .M.L. Serre, A.S. Ferguson, M. Emch, V. Escamillo, J. Wu, A.C. Layton, B.J. Mailloux, P.K. Streatfield, M. Yunus, K.M. Ahmed, M.R. Huq, M.J. Alam, A. van Geen, 2010. Fecal contamination in tubewell water of Bangladesh: Part IV - Identifying sources, Ecology and Evolution of Infectious Diseases 2010, Poster Presentation, Atlantic City, NJ, USA, March 22 – 25.

·         A.S. Ferguson, B.J. Mailloux, P.J. Culligan, J. Feighery, M. Emch, V. Escamillo, J. Wu, A.C. Layton, L.D. McKay, P. Knappett, M.L. Serre, Y. Akita, P.K. Streatfield, M. Yunus, K.M. Ahmed, M.R. Huq, M.J. Alam, A. van Geen, 2010. Fecal contamination in tubewell water of Bangladesh: Part I - Spatial and temporal patterns, Ecology and Evolution of Infectious Diseases 2010, Poster Presentation, Atlantic City, NJ, USA, March 22 – 25.

·         Escamilla, V., M. Emch, A. van Geen, Y. Akita, M. L. Serre, L. Band, 2009, Effects of Neighborhood Water and Sanitation on Diarrheal Disease Incidence in Rural Bangladesh, Association of American Geographers, Las Vegas, NV, USA. March 27

·         Akita, Y., J. Leber, Peter S.K. Knappett, J. Feighery,  L.E. Band, M.E. Emch, B.J. Mailloux, P.J. Culligan, A.C. Layton, L.D. McKay, A. Van Geen, M.L. Serre, 2008. Spatial analysis of the distribution of bacterial pathogen indicators across shallow aquifers in Bangladesh, International Society for Environmental Epidemiology & International Society of Exposure Analysis, 2008 Joint Annual Conference, Oral Presentation, Pasadena, CA, USA. October 12-16.

·         Akita, Y., V. Escamilla, M.E. Emch, M.L. Serre, 2008. Space/time analysis of Cholera and Shigella incidence rates across a region of Bangladesh, International Society for Environmental Epidemiology & International Society of Exposure Analysis, 2008 Joint Annual Conference, Poster Presentation, Pasadena, CA, USA. October 12-16.

·         Serre, M.L., Y. Akita, V. Escamilla, M. Emch, A. Kolovos, 2008. Spatial analysis of arsenic exposure and diarrheal disease risk in Bangladesh related to population pressures on groundwater resources, European Geophysical Union General Assembly, Poster Presentation, Vienna, Austria, April 13-18.

·         Akita, Y., M.L. Serre, 2007. A space/time framework for the estimation of tetrachloroethylene and trichloroethylene in the freshwater of New Jersey and North Carolina, The 17th Annual Conference of the International Society for Exposure Analysis, Oral Presentation, Durham, NC, USA, October 14-18.

·         Fitch, M. K., Y. Akita, M. L. Serre, 2007. Using temporal GIS to assess spatial and temporal trends in dieldrin concentrations across North Carolina, The 17th Annual Conference of the International Society for Exposure Analysis, Poster Presentation, Durham, NC, USA, October 14-18.

·         Serre, M.L., Y. Akita, G. Carter, 2007.  BME Geostatistical Space/Time Analysis of Environmental Monitoring Data Using ArcGIS. A One-day Workshop at the New Jersey Department of Environmental Protection, Trenton, NJ, USA, June 12.

·         Akita, Y., M.L. Serre, G. Carter, 2006.  Research Translation in Spatiotemporal Exposure Assessment for Contaminated River Superfund Site, EPA Science Forum 2006, Poster Presentation, 3rd place prize, Washington DC, USA, May 16-18.

·         M.L. Serre, Y. Akita, G. Carter, 2006.  Assessing Surface Water Quality in New Jersey: Using GIS, spatio-temporal Geostatistics, and BME. A One-day Application Development Session at the New Jersey Department of Environmental Protection, Trenton, NJ, USA, May 15.

·         Money, E., Y. Akita, G. Carter and M.L. Serre, 2005. Space/Time Assessment Of Water Quality Along The River Network In New Jersey. American Geophysical Fall Meeting, Poster Presentation, San Francisco, California, USA, December 5-9.

·         Serre, M.L., S.J. Lee, E. Money and Y. Akita, 2005. Integrating Multiple Source Data Uncertainty for Spatiotemporally Distributed Hydrological Systems, American Geophysical Fall Meeting, Poster Presentation, San Francisco, California, USA, December 5-9.