THE BAYESIAN DECISION MODEL WITH MORE THAN ONE PREDICTOR--AN APPLICATION TO THE STOCKING RATE PROBLEM

Research Methods/ Statistical Methods,

Stories of transition between graduate preparation programs and community-college student affairs

2021 Spring.Includes bibliographical references.The purpose of this study is to provide a basis for understanding how new student-affairs professionals transition from their graduate preparation programs and into community-college work within zero to 3 years after having completed their master's degree. The study was guided by three specific research questions: (a) How do individuals experience the transition from graduate-school preparation programs and community-college student-affairs work as two separate, but related, cultures?; (b) What external factors facilitate new student-affairs professionals transitions' from graduate school into community-college work?; and (c) What internal or personal factors support this transition between graduate school and community-college work? This study was constructed using two primary frameworks: community colleges as a subculture (Sebald, 1975) within the American higher education system, and Schlossberg's (1981, 2008) transition theory and 4S system, which identify factors across internal and external domains that support individuals as they experience change in their lives. Through a qualitative, narrative-inquiry approach that highlighted the lived experiences and personal stories of five individuals, key findings describe specific areas of perceived misalignment (broad roles, localization, organizational structure and dynamics) and an emergent colloquialism ("especially at community colleges") that described differences between the two separate, but related, cultures. Participants' stories also revealed the influence of graduate school, sense of community, "doing work that matters," and situational factors as supportive of their transitions. Implications for practice include strengthening both professional pipelines to community-college student-affairs work and graduate program design

Optimization and Management of Materials in Earthwork Construction

This research provides solutions to identifi ed problems through better management and optimization of the available pavement geotechnical materials and through ground improvement, soil reinforcement, and other soil treatment techniques

Innovative Solutions for Slope Stability Reinforcement and Characterization: Vol. III

Soil slope instability concerning highway infrastructure is an ongoing problem in Iowa, as slope failures endanger public safety and continue to result in costly repair work. Volume I of this current study summarizes research methods and findings, while Volume II provides procedural details for incorporating into practice an infrequently-used testing technique–borehole shear tests. Volume III of this study of field investigation of fifteen slopes in Iowa demonstrates through further experimental testing how lateral forces develop along stabilizing piles to resist slope movements. Results establish the feasibility of an alternative stabilization approach utilizing small-diameter pile elements. Also, a step-by-step procedure that can be used by both state and county transportation agencies to design slope reinforcement using slender piles is documented. Initial evidence of the efficiency and cost-effectiveness of stabilizing nuisance slope failures with grouted micropiles is presented. Employment of the remediation alternative is deemed more appropriate for stabilizing shallow slope failures. Overall, work accomplished in this research study included completing a comprehensive literature review on the state of the knowledge of slope stability and slope stabilization, the preparation and performance of fourteen full-scale pile load tests, the analysis of load test results, and the documentation of a design methodology for implementing the technology into current practices of slope stabilization. Recommendations for further research include monitoring pilot studies of slope reinforcement with grouted micropiles, supplementary experimental studies, and advanced numerical studies

Seasonal Variation in the Layers of Highway US 20

A better understanding of the influence of seasonal variation of pavement foundation layer properties in Iowa could potentially benefit pavement design, material selection, and construction specifications

White\u27s Mt Vernon Directory and City Guilde 1876-7 Vol. 1

These directories are a list of residents in the county. These directories house information such as companies, addresses, institutions, and churches. In some of these directories the African Americans in the community are listed with a C this is for the listing of colored. Some churches or organizations also were identified by the colored designation. Also in these directories the publication year might not be in the same year that the information was gathered.https://digital.kenyon.edu/kncodir/1002/thumbnail.jp

Innovative Solutions for Slope Stability Reinforcement and Characterization: Vol. I

Soil slope instability concerning highway infrastructure is an ongoing problem in Iowa, as slope failures endanger public safety and continue to result in costly repair work. Characterization of slope failures is complicated, because the factors affecting slope stability can be difficult to discern and measure, particularly soil shear strength parameters. While in the past extensive research has been conducted on slope stability investigations and analysis, this research consists of field investigations addressing both the characterization and reinforcement of such slope failures. The current research focuses on applying an infrequently-used testing technique comprised of the Borehole Shear Test (BST). This insitu test rapidly provides effective (i.e., drained) shear strength parameter values of soil. Using the BST device, fifteen Iowa slopes (fourteen failures and one proposed slope) were investigated and documented. Particular attention was paid to highly weathered shale and glacial till soil deposits, which have both been associated with slope failures in the southern Iowa drift region. Conventional laboratory tests including direct shear tests, triaxial compression tests, and ring shear tests were also performed on undisturbed and reconstituted soil samples to supplement BST results. The shear strength measurements were incorporated into complete evaluations of slope stability using both limit equilibrium and probabilistic analyses. The research methods and findings of these investigations are summarized in Volume 1 of this report. Research details of the independent characterization and reinforcement investigations are provided in Volumes 2 and 3, respectively. Combined, the field investigations offer guidance on identifying the factors that affect slope stability at a particular location and also on designing slope reinforcement using pile elements for cases where remedial measures are necessary. The research findings are expected to benefit civil and geotechnical engineers of government transportation agencies, consultants, and contractors dealing with slope stability, slope remediation, and geotechnical testing in Iowa

Design Guide for Improved Quality of Roadway Subgrades and Subbases

The performance of a pavement depends on the quality of its subgrade and subbase layers; these foundational layers play a key role in mitigating the effects of climate and the stresses generated by traffic. Therefore, building a stable subgrade and a properly drained subbase is vital for constructing an effective and long lasting pavement system. This manual has been developed to help Iowa highway engineers improve the design, construction, and testing of a pavement system’s subgrade and subbase layers, thereby extending pavement life. The manual synthesizes current and previous research conducted in Iowa and other states into a practical geotechnical design guide (proposed as Chapter 6 of the SUDAS Design Manual) and construction specifications (proposed as Section 2010 of the SUDAS Standard Specifications) for subgrades and subbases. Topics covered include the important characteristics of Iowa soils, the key parameters and field properties of optimum foundations, embankment construction, geotechnical treatments, drainage systems, and field testing tools, among others

Design Guide for Subgrades and Subbases

Iowa roadway engineers can help extend pavement life-spans by building stable and properly drained subgrade and subbase layers