1/25/2012  Associate Professor or Professor at University of Maryland  College Park,  Maryland  USA

1/15/2012  Research Associate (Post-doctoral) Position at The University of Colorado Population Center (CUPC) & National Center for Atmospheric Research (NCAR  Boulder,  Colorado  USA

1/2/2012  Professor and Assistant or Associate Professor tenure-track faculty positions at Texas A&M University  College Station,  Texas  USA

12/28/2011  Assistant Professor – Geographic Information Science at Hunter College, City University of New York  New York,  New York  USA

10/25/2011  PostDoc at University of Colorado  Boulder,  Colorado  USA

10/20/2011  GIS and Spatial Analysis - Assistant or Associate Professor at Arizona State University  Tempe,  Arizona  USA

3/16/2011  Research Assistant Professor at Kansas State University  Manhattan,  Kansas  USA