A New Working Class: Students for a Democratic Society and the United Auto Workers in the Sixties

Honors (Bachelor's)History, Department ofUniversity of Michiganhttp://deepblue.lib.umich.edu/bitstream/2027.42/55464/1/bullock_amanda_history_honors_thesis2.pd

The Effects of Retrieval Strategy on a Collaborative Reconstruction Task

The purpose of the present experiment was to explore the effects of using various retrieval strategies on a collaborative reconstruction task. More specifically, we sought to determine the extent to which the Retrieval Strategy Disruption Hypothesis (RSD) could explain the effects of collaborative inhibition on such tasks. Collaborative inhibition is observed when collaborative group performance is lower than the pooled performance of an identical number of individuals working alone (nominal groups). The RSD hypothesis suggests that one group member’s output disrupts another group member’s idiosyncratic retrieval strategy leading to poorer performance relative to individuals working alone. In the present study, participants were asked to reconstruct an eight-item list of common nouns either individually (later used to form nominal groups), with a partner employing a turn-taking strategy (turn-taking groups), or with a partner employing a turn-taking strategy while recalling the words in the order in which they were originally presented (restricted groups). We observed equivalent performance in the nominal and restricted groups and statistically poorer performance in the turn-taking groups. These results are discussed with respect to the Retrieval Strategy Disruption Hypothesis

Evaluation of Alternative Intersections and Interchanges: Volume II—Diverging Diamond Interchange Signal Timing

This report presents findings from field studies of operations at diverging diamond interchanges (DDIs) in Salt Lake City, Utah and Fort Wayne, Indiana. These discuss optimization of signal offsets both within the DDI, and with the DDI integrated as part of an arterial corridor. Optimization of Fort Wayne, Indiana corridor comprising the DDI and three neighboring intersections yielded an annualized user benefit of $564,000, when assessing origin-destination paths both along the arterial and for movements to and from the freeway. This is the first field study of DDI offset optimization with neighboring intersections. Additionally, a pilot study was carried out in Salt Lake City on a new phasing scheme that incorporated a “holdback” phase into the signal sequence that delayed vehicles exiting the ramp in order to better coordinate their arrival at the downstream intersection, increasing the percent on green from 53% to 92%. The report concludes with a discussion of practical issues pertaining to DDI signal timing and provides a series of guidelines to assist in the design of new signal timing plans for future DDI deployments

High-Resolution Event-Based Data at Diamond Interchanges: Performance Measures and Optimizing Ring Displacement

This poster corresponds to the following article: Hainen, A.M., A.L. Stevens, R.S. Freije, C.M. Day, J.R. Sturdevant, and D.M. Bullock, “High-Resolution Event-Based Data at Diamond Interchanges: Performance Measures and Optimization of Ring Displacement,” Transportation Research Record: Journal of the Transportation Research Board, No. 2439, Transportation Research Board of the National Academies, Washington, D.C., pp. 12–26, October 2014. http://dx.doi.org/10.3141/2439-02 This article can be found here: http://docs.lib.purdue.edu/civeng/13