Report on a special investigation of the City of Stockport for the period July 1, 2007 through October 31, 2011

Report on a special investigation of the City of Stockport for the period July 1, 2007 through October 31, 2011

Report on a special investigation of the City of Muscatine for the period July 1, 2008 through March 8, 2012

Report on a special investigation of the City of Muscatine for the period July 1, 2008 through March 8, 2012

Special investigation of the Iowa Department of Transportation for the period January 29, 1994 through July 7, 2011

Special investigation of the Iowa Department of Transportation for the period January 29, 1994 through July 7, 2011

Special investigation of the University of Northern Iowa Events Complex Concessions for the period October 1, 2006 through March 31, 2012

Special investigation of the University of Northern Iowa Events Complex Concessions for the period October 1, 2006 through March 31, 2012

Report on a special investigation of the City of Indianola for the period June 1, 2006 through August 31, 2012

Report on a special investigation of the City of Indianola for the period June 1, 2006 through August 31, 2012

Report on a special investigation of the Lyon County Engineer’s Office for the period August 1, 2006 through May 31, 2012

Report on a special investigation of the Lyon County Engineer’s Office for the period August 1, 2006 through May 31, 2012

Report on a special investigation of the Creston Water Works for the period July 1, 2005 through November 16, 2012

Report on a special investigation of the Creston Water Works for the period July 1, 2005 through November 16, 2012

Report on special investigation of the City of Farmington for the period July 1, 2009 through November 30, 2012

Special investigation of the City of Farmington for the period July 1, 2009 through November 30, 2012

Report on a special investigation of the City of Grand River for the period July 1, 2004 through March 7, 2012

Report on a special investigation of the City of Grand River for the period July 1, 2004 through March 7, 2012

Addendum to a report on a special investigation of the Iowa Department of Transportation for the period January 29, 1994 through June 30, 2013

Addendum to a report on a special investigation of the Iowa Department of Transportation for the period January 29, 1994 through June 30, 2013

Effects of fructose and glucose overfeeding on hepatic insulin sensitivity and intrahepatic lipids in healthy humans.

OBJECTIVE: To assess how intrahepatic fat and insulin resistance relate to daily fructose and energy intake during short-term overfeeding in healthy subjects. DESIGN AND METHODS: The analysis of the data collected in several studies in which fasting hepatic glucose production (HGP), hepatic insulin sensitivity index (HISI), and intrahepatocellular lipids (IHCL) had been measured after both 6-7 days on a weight-maintenance diet (control, C; n = 55) and 6-7 days of overfeeding with 1.5 (F1.5, n = 7), 3 (F3, n = 17), or 4 g fructose/kg/day (F4, n = 10), with 3 g glucose/kg/day (G3, n = 11), or with 30% excess energy as saturated fat (fat30%, n = 10). RESULTS: F3, F4, G3, and fat30% all significantly increased IHCL, respectively by 113 ± 86, 102 ± 115, 59 ± 92, and 90 ± 74% as compared to C (all P < 0.05). F4 and G3 increased HGP by 16 ± 10 and 8 ± 11% (both P < 0.05), and F3 and F4 significantly decreased HISI by 20 ± 22 and 19 ± 14% (both P < 0.01). In contrast, there was no significant effect of fat30% on HGP or HISI. CONCLUSIONS: Short-term overfeeding with fructose or glucose decreases hepatic insulin sensitivity and increases hepatic fat content. This indicates short-term regulation of hepatic glucose metabolism by simple carbohydrates.

Report on a special investigation of the City of Sloan for the period May 19, 2009 through March 31, 2013

Report on a special investigation of the City of Sloan for the period May 19, 2009 through March 31, 2013

Special investigation of the Garner Volunteer Ambulance Service for the period July 1, 2011 through June 30, 2012

Special investigation of the Garner Volunteer Ambulance Service for the period July 1, 2011 through June 30, 2012

Seismic detection and characterization of landslides and other mass movements

Seismic methods used in the study of snow avalanches may be employed to detect and characterize landslides and other mass movements, using standard spectrogram/sonogram analysis. For snow avalanches, the spectrogram for a station that is approached by a sliding mass exhibits a triangular time/frequency signature due to an increase over time in the higher-frequency constituents. Recognition of this characteristic footprint in a spectrogram suggests a useful metric for identifying other mass-movement events such as landslides. The 1 June 2005 slide at Laguna Beach, California is examined using data obtained from the Caltech/USGS Regional Seismic Network. This event exhibits the same general spectrogram features observed in studies of Alpine snow avalanches. We propose that these features are due to the systematic relative increase in high-frequency energy transmitted to a seismometer in the path of a mass slide owing to a reduction of distance from the source signal. This phenomenon is related to the path of the waves whose high frequencies are less attenuated as they traverse shorter source-receiver paths. Entrainment of material in the course of the slide may also contribute to the triangular time/frequency signature as a consequence of the increase in the energy involved in the process; in this case the contribution would be a source effect. By applying this commonly observed characteristic to routine monitoring algorithms, along with custom adjustments for local site effects, we seek to contribute to the improvement in automatic detection and monitoring methods of landslides and other mass movements.

Report on a special investigation of the City of Riverside for the period July 1, 2006 through December 31, 2012

Report on a special investigation of the City of Riverside for the period July 1, 2006 through December 31, 2012