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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Effects of Errors of Commission on Student Performance During Discrete Trial Tasks

De Fazio, Carina M. 06 January 2017 (has links)
The extent to which interventions are implemented as intended is called treatment integrity (TI). Given that it is unreasonable to expect 100% TI in applied settings, a through understand of TI is essential to appropriately train teachers. This understanding must include the types of TI errors that may be committed and how these effect student learning. It is essential to study TI errors because of the real-world implications for students, including eligibility decisions for special education services, which are based upon students’ responses to inventions. It is not possible to make educational decisions on intervention effectiveness unless it is clear that evidence-based practices have been implemented accurately. If TI is low, it is impossible to determine which services and interventions a student requires. Further, measuring the fidelity with which interventions are applied allows for a more thorough and accurate understanding of which components of an intervention are effective, necessary, and feasible. A broader understanding of which TI errors are most significant, as well as measuring the necessary levels of TI, will lead to more accurate information about how to implement evidence-based practices. The purpose of this study is to gain a more nuanced understanding of TI failures in the form of errors of commission and the role commission errors have on participant responsiveness (Power, 2005). This study extends the results of DiGennaro Reed et al. (2011) by including an intermediate (80%) level of TI which may more accurately represent an attainable level of TI in applied settings. For two of four students, more errors of commission were related to lower skill acquisition. For the other two students, idiosyncratic patterns of responding emerged.
32

Quantification of structural redundancy and robustness

Brett, Colin Joseph January 2015 (has links)
Historical collapse events are testament to the inherent dangers of non-robust structures. Designing robust structures is vital to ensure that localised damage events, such as the failure of a single structural element, do not lead to catastrophic disproportionate collapse. While the advent of robustness research can be dated to the collapse of the Ronan Point building in 1968, the quantification of robustness remains an active and important research field. The importance of developing effective robustness assessment methods is emphasized by a number of factors. One issue is the growing problem of inspecting, maintaining and ensuring the safety of ageing infrastructure. Older structures are more likely to be non-redundant and are more susceptible to structural defects. Another factor is the pursuit of greater efficiency and design optimisation, which has eliminated traditional design conservatism and many undocumented factors of safety. As a result, modern buildings may be more vulnerable to unforeseen conditions during their service life. The objective of quantifying robustness highlights the need for a new system-oriented perspective on structural performance to complement traditional component-based design. There is, as of yet, no single framework that incorporates all the essential aspects in an explicit, transparent and quantitative manner leading to a comprehensive outcome in terms of quantification of the structural robustness. This thesis focuses primarily on the quantification of redundancy and robustness, with the view that the capacity of a structure to withstand a damage event is an inherent property of the structure, which can be considered complementary to other commonly discussed structural properties, such as strength and ductility. Hence, a comprehensive unified framework for redundancy quantification is proposed, which builds upon existing strength-based measures. The role of structural uncertainties in the quantification of robustness is investigated, with a focus on the importance of the sequence of events which precede the collapse of a structure. Directly incorporating structural uncertainties into robustness quantification typically requires computationally expensive methods such as Monte Carlo simulations. Moreover, such collapse analyses are susceptible to numerical instabilities, further complicating the simulation of multiple collapse scenarios. To address these issues, a novel incremental elastic analysis method is proposed in this thesis, which analyses the full load-displacement relationship of a structure and additionally, has an inbuilt capacity to incorporate structural variability and thus output a spectrum of possible response outcomes.
33

Cement fatigue and HPHT well integrity with application to life of well prediction

Ugwu, Ignatius Obinna 15 May 2009 (has links)
In order to keep up with the world’s energy demands, oil and gas producing companies have taken the initiative to explore offshore reserves or drill deeper into previously existing wells. The consequence of this, however, has to deal with the high temperatures and pressures encountered at increasing depths. For an oil well to maintain its integrity and be produced effectively and economically, it is pertinent that a complete zonal isolation is achieved during well completion. This complete zonal isolation can be compromised due to factors that come into play when oil well cement experiences cyclic loading conditions which can lead to fatigue failure as a consequence of extensive degradation of the microstructure of the cement material depending on stress levels and number of cycles. There have been a lot of research and experimental investigations on the mechanism of fatigue failure of concrete structures but the fatigue behavior of oil well cement is still relatively unknown to engineers. Research in the area of oil well cement design has led to improved cement designs and cementing practices but yet many cement integrity problems persist and this further strengthens the need to understand the mechanism of cement fatigue. This research seeks to develop a better understanding of the performance of the casing cement bond under HPHT well conditions that can lead to best practices and a model to predict well life. An analytical model, which can be used to evaluate stresses in the cement sheath based on actual wellbore parameters, was developed and combined effectively with finite element models to evaluate the fatigue and static loading behavior of a well. Based on the findings of this investigation, the mechanical properties of the casing, cement and formation as well loading conditions play a very big role in the static and fatigue failure of well cement. Finally, recommendations for future work on this subject were also presented in order to understand all tenets of cement fatigue and to develop governing equations.
34

A Case Study of Faculty Perceptions of Student Plagiarism

Schaefer, Candace Hastings 2010 December 1900 (has links)
This study examined faculty perceptions of plagiarism in the classroom using a qualitative case study methodology. A single university was used for the case study to locate all data under a single institutional culture. A purposive sample of eleven faculty were interviewed and content analysis was conducted on the data. The data were analyzed using Lave and Wenger’s theory of legitimate peripheral participation, a learning theory which proposes that all learning takes place in a community of practice and that learning takes place as a result of interactions between members of the community of practice. Because the data were analyzed using legitimate peripheral participation, faculty were asked to reflect on how they learned to write in their discipline, how they view their role in working with students as they become proficient in writing in their discipline, and what happens when students violate community practices. This study attempted to reframe scholarship that approaches plagiarism as a right vs. wrong issue and recast scholarship on plagiarism as an issue of students moving toward full participation in the community of practice of academic scholars under the tutelage of faculty members. Research participants saw themselves as mentors to students as they developed their academic writing standards and abilities, a philosophy in keeping with the tenets of legitimate peripheral participation. Research participants attributed violations of community standards to institutional constructs such as grades, social constructs such as culture or generation, or individual constructs such as moral character or upbringing.
35

Selecting species as indicators of ecological integrity a conceptual model based on mammals of Algonquin Provincial Park, Ontario, Canada /

Kassel, Samantha J. January 1998 (has links)
Thesis (M.E.S.)--York University, 1998. / Typescript. Includes bibliographical references (leaves 93-104). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pMQ27357.
36

Rekrytering 2.0 : - En fara för arbetssökandes personliga integritet?

Almquist, Matilda, Brandt, Camilla January 2014 (has links)
This paper examines how recruiters use social media during their recruitment process. The paper focuses on the staffing industry and will further examine how recruiters are handling jobseekers personal privacy when they are using social media in a recruitment process. The paper are trying to understand the meaning of what personal integrity means and how or if recruiters show consideration to this in a recruitment process when they are using social media as a recruitment tool.   Our result demonstrates that, today recruiters use social media daily to conduct background checks on job applicants. There are no clear instructions and rules on how recruiters should handle background checks through social media. Recruiters believe that job seekers are responsible for the information contained on the their social media. Recruiters do not see anything wrong with their actions when they choose to do background checks on job applicants through social media. If we look at the factors that violates an individual's privacy, can we conclude that recruits approach could be classified as a violation of jobseekers' personal integrity.
37

Development of volunteer-driven indices of biological integrity for wetlands in West Virginia

Veselka, Walter Emil. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains xxiv, 653 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references.
38

Academic honesty is what students believe different from what they do? /

Kirkland, Kim D. January 2009 (has links)
Thesis (Ph.D.)--Bowling Green State University, 2009. / Document formatted into pages; contains xiv, 255 p. Includes bibliographical references.
39

Modeling of vias and via arrays in high speed printed circuit boards

Chada, Arun Reddy, January 2009 (has links) (PDF)
Thesis (M.S.)--Missouri University of Science and Technology, 2009. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 16, 2009) Includes bibliographical references (p. 90-91).
40

Organizing for global social change: Toward a global integrity ethic

Johnson, Pamela Carol January 1992 (has links)
No description available.

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