Canyon Ferry Recreation Survey: 2003-2004

This report summarizes a study of recreation use on Canyon Ferry Reservoir from May 24, 2003 to February 28, 2004. The summer results from 2003-2004 are compared to the results of the 1995 and 1999 Canyon Ferry Recreation studies, as the same survey instrument was used

An Agenda on Productive Aging: Research, Policy, and Practice

The Center for Social Development (CSD) at Washington University in St. Louis is advancing an agenda on productive aging, focusing on three primary forms of productive engagement: employment, volunteerism/civic engagement, and caregiving. These are activities that produce goods and services, whether paid for or not, and that have effects beyond individuals to families, communities, and society. Older adults who engage in these activities make important economic and social contributions, though these contributions are often undervalued. This agenda on productive aging builds on the results of a CSD-sponsored symposium where leading gerontologists from many academic disciplines discussed older adults as a resource

Exile Vol. II No. 1

SHORT STORIES The Berry Pickers by Jim Bowman 6-17 The Molting Season by Lois Rowley 19-31 The Breaking Point by Sally Falch 36-45 Flight of the Falcon by Hans Peeters 48-54 SKETCH Portrait of a Grandfather by Barbara Haupt 32-35 POETRY The Brightened Mirror by E. B. Chaney 18 Holiday by Nancy McBride 31 Christ-Song: The Descent By Ellen Moore 46-47 Four Poems by Nil Muldur: A Preview 55 Strange Land, Strange Altars 55 Two Love Lyrics 56 In this issue the editors of EXILE are proud to publish The Flight of the Falcoln by Hans Peeters. This story has been awarded the first Denison Book Store - EXILE Creative Writing Prize

Modulation of outer bank erosion by slump blocks: disentangling the protective and destructive role of failed material on the three-dimensional flow structure

The three-dimensional flow field near the banks of alluvial channels is the primary factor controlling rates of bank erosion. Although submerged slump blocks and associated large-scale bank roughness elements have both previously been proposed to divert flow away from the bank, direct observations of the interaction between eroded bank material and the 3-D flow field are lacking. Here we use observations from multibeam echo sounding, terrestrial laser scanning, and acoustic Doppler current profiling to quantify, for the first time, the influence of submerged slump blocks on the near-bank flow field. In contrast to previous research emphasizing their influence on flow diversion away from the bank, we show that slump blocks may also deflect flow onto the bank, thereby increasing local shear stresses and rates of erosion. We use our measurements to propose a conceptual model for how submerged slump blocks interact with the flow field to modulate bank erosion