Bowling Green State University

About: Bowling Green State University is a education organization based out in Bowling Green, Ohio, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 8315 authors who have published 16042 publications receiving 482564 citations. The organization is also known as: BGSU.

From Teaching Technology to Using Technology to Enhance Student Learning: Preservice Teachers’ Changing Perceptions of Technology Infusion

Abstract: This article uncovers changes that occurred in preservice teachers' thinking about and use of technology infusion and its role in student learning. It reports on findings from a two-year evaluation study of a preservice teacher technology infusion project in which teams of teacher educators and K-12 teachers collaborated to infuse technology in their respective teaching contexts, and to create links between these contexts. Each team created (a) hands-on experiences with computer technology to support constructivist teaching, (b) two-way interactive videoconferencing between college courses and K-12 classrooms, and (c) field experiences in technology rich classrooms. Based on analysis of survey and focus group data, classroom observations, and analysis of preservice teachers' work, findings indicated that preservice teachers changed their views of technology infusion from thinking that they would teach and learn about technology to thinking they would use technology to support student learning. Project design features, as well as implications for future practice, are discussed. Educators have seen a recent proliferation of initiatives aimed at infusing technology into Teacher Education Programs. Current conditions contributing to this effort are: 1. Recent standards developed by the International Society for Technology in Education (ISTE) and adopted by the National Council for the Accreditation of Teacher Education (NCATE); 2. The NCATE Task Force on Technology in Teacher Education's recommendation that schools of education have a technology infusion plan (NCATE, 1997); 3. The subsequent National Education Technology Standards Project (Thomas & Knezek, 1998); 4. The availability of federal funds from several sources; and 5. The demand of the K-l2 schools for technologically sophisticated teachers. What is the impact of these initiatives on preservice teachers' learning about teaching? How can technology infusion expand visions of pedagogical possibility? This article uncovers changes that occurred in preservice teacher's perceptions of technology infusion based on evaluation findings from the first and second years of an ongoing Goals 2000 Preservice Technology Infusion Project. The project design involved a summer institute each year, where teams of education faculty, content faculty, and K-12 teachers worked together to learn about specific computer technologies and their applications, planned for infusing technology into their respective courses, and created links among preservice teachers, and teachers and students in public school contexts. Teams participated in common professional development experiences and were supported during the summer and throughout the year to plan, implement, and assess technology infusion activities. This article describes features which participants identified as components of their technology infusion vision, as well as aspects of the project that supported their learning, will be described. Findings based on analysis of survey and focus group data, classroom observations, and analysis of preservice teachers' work indicated preservice teachers changed their views of technology infusion from thinking they would teach about technology, to thinking they would use technology as a tool to support student learning. The project was grounded in beliefs that technology integration in teacher education should provide preservice teachers with: * hands-on experiences exploring computer technologies and their applications in teaching and learning; * education courses that model technology integration; * field experiences in technology rich classrooms (Marshall, 1993); and * a rich, constructivist vision of technology infusion possibilities (Daniel, 1996; Faison, 1996; Hatfield, 1996; Jonassen, 1995; Pepi & Scheuerman, 1996). This project was developed based on the NCATE technology standards that preservice teachers be able to: * operate a computer system in order to use software; * evaluate and use computers and related technologies to support warranted instructional and assessment practices; * use computer-based technologies to access information to enhance professional development; and * integrate computer-based instruction in the curriculum (NGATE, 1997). …

Bumble bee behavior and selection on flower size in the sky pilot, Polemonium viscosum.

Abstract: In alpine Polemonium viscosum, plants having sweet-scented flowers are primarily pollinated by queens of the bumble bee species, Bombus kirbyellus. In this paper we ask whether two aspects of the pollination effectiveness of bumble bees, visitation rate and pollination efficiency, vary significantly with flower size in sweet-flowered P. viscosum.(i) Bumble bees visited plants with large flowers on 80-90% of encounters, but visited those with smaller flowers on only 49% of encounters. (ii) However, the gain in pollination that large-flowered plants obtained via increased visitation was countered in part because bumble bees deposited fewer outcross pollen grains per visit on stigmas of large flowers than on those of small ones. When both visitation rate and pollination efficiency are taken into account, the predicted value of a single bumble bee encounter declines from 1.06 seeds for flowers larger than 18 mm in diameter to 0.55 seeds for flowers smaller than 12 mm in diameter. Our results suggest that bumble bee pollinators of P. viscosum prefer flower morphologies that are poorly suited for precise pollination. Such behavioral complexities are likely to place constraints on the evolution of "optimal" floral design.

Associations of fathers' history of incarceration with sons' delinquency and arrest among black, white, and hispanic males in the united states†

Abstract: Nearly 13 percent of young adult men report that their biological father has served time in jail or prison; yet surprisingly little research has examined how a father's incarceration is associated with delinquency and arrest in the contemporary United States. Using a national panel of Black, White, and Hispanic males, this study examines whether experiencing paternal incarceration is associated with increased delinquency in adolescence and young adulthood. We find a positive association with paternal incarceration that is robust to controls for several structural, familial, and adolescent characteristics. Relative to males not experiencing a father's incarceration, our results show that those experiencing a father's incarceration have an increased propensity for delinquency that persists into young adulthood. Using a national probability sample, we also find that a father's incarceration is highly and significantly associated with an increased risk of incurring an adult arrest before 25 years of age. These observed associations are similar across groups of Black, White, and Hispanic males. Taken as a whole, our findings suggest benefits from public policies that focus on male youth “at risk” as a result of having an incarcerated father.

A multivariate exponentially weighted moving average control chart for monitoring process variability

Abstract: This paper introduces a new multivariate exponentially weighted moving average (EWMA) control chart The proposed control chart, called an EWMA V-chart, is designed to detect small changes in the variability of correlated multivariate quality characteristics Through examples and simulations, it is demonstrated that the EWMA V-chart is superior to the |S|-chart in detecting small changes in process variability Furthermore, a counterpart of the EWMA V-chart for monitoring process mean, called the EWMA M-chart is proposed In detecting small changes in process variability, the combination of EWMA M-chart and EWMA V-chart is a better alternative to the combination of MEWMA control chart (Lowry et al , 1992) and |S|-chart Furthermore, the EWMA M- chart and V-chart can be plotted in one single figure As for monitoring both process mean and process variability, the combined MEWMA and EWMA V-charts provide the best control procedure

The Origin of HIMU in the SW Pacific: Evidence from Intraplate Volcanism in Southern New Zealand and Subantarctic Islands

Abstract: Author Posting. © The Author, 2006. This is the author's version of the work. It is posted here by permission of Oxford University Press for personal use, not for redistribution. The definitive version was published in Journal of Petrology 27 (2006): 1673-1704, doi:10.1093/petrology/egl024.