234 research outputs found

    Bootstrap Methods for Inference in a SUR model with Autocorrelated Disturbances

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    Although the Parks (1967) estimator for a SUR model with AR disturbances is efficient both asymptotically and in small samples, Kmenta and Gilbert (1970) and more recently Beck and Katz (1995) note that estimated standard errors tend to be biased downward as compared with the true variability of the estimates. This bias leads to tests that show over-rejection and to confidence intervals that are too small. We suggest bootstrapping the tests to correct this inference problem. After illustrating the over rejection associated with the estimated asymptotic standard errors, we develop a bootstrap approach to inference for this model, illustrate its use, and show using Monte Carlo methods that the bootstrap gives rejection probabilities close to the nominal level chosen by the researcher.

    Adult entrances and exits: What does retention literature inform us about urban adult higher educational participants and student success?

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    This research purpose, derived from a larger study shares findings which help explain retention and, success outcomes associated with Urban adult learners in a 4 year higher educational setting. A critical analysis of the literature reveals in retention, understanding barriers is a key indicator of an institution\u27s effectiveness

    Processing History: Potentials of Transformers for 3D Reconstruction of Historical Objects with the Help of Artifcial Intelligence

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    The digital preservation of cultural heritage is an important and challenging task for the research community. Reconstructing historical objects, which do not exist anymore, in the form of digital 3D models makes it possible to visualize them and present them to the public. The reconstruction process as well as the visualization lead to a deeper understanding of the lost historical objects. But the process of the digitalreconstruction is complex and time consuming as diverse sources have to be consulted and interpreted. Therefore, in this paper the latest technology in the feld of artifcial intelligence (AI) is used to support researchers in the feld of Digital Humanities: A Transformer deep learning model based on questions answering methods is introduced to assist to digitally reconstruct historical objects in 3D. It implies a new dimension of data availability, which supports the knowledge process by making large amounts of data qualitatively accessible. [Aus: Einleitung

    The Changing Nature of the Adult Education Professorate: New Roles and Responsibilities in the 21st Century

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    The purpose of this session is to discuss how the roles and responsibilities of the adult education professor have changed in the last 30 years and how the level of power has shifted amidst such change. An examination regarding the changing nature of faculty roles and responsibilities is important because faculty are now challenged in colleges and universities to operate under *market driven models (Kotler & Fox, 1995). In many institutions, faculty are micro-managed to become “organization” men and women, which greatly alters the teaching and learning contract we have with students; resulting in adult education faculty operating as brokers among constituencies for power, influence, and control. Politics and positionality readily becomes a part of this new market driven relationship or model (Cervero & Wilson and Associates, 2001; Johnson-Bailey, 2001; Kotler & Fox, 1995)

    Labor, Lynching, and Literature in Mississippi

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    https://aquila.usm.edu/blackstudies_theredrecord/1001/thumbnail.jp

    Experimente zum Versagen des Dichtkastens für die Materialschleusenverschraubung im Containment des KKW Philippsburg II

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    Bei der Schwachstellenanalyse zum Containmentversagen unter Innendruck stellte sich die Frage, bei welchem Druck der Dichtkasten, der die Materialschleusenverschraubung im Sicherheitsbehälter abdichtet, versagt. Zur Untersuchung des Dichtkastenversagens wurden Streifenmodelle des Dichtkastenquerschnittes im Maßstab 1:1 als Zugproben angefertigt. Eine Variation der Dichtblechnähte wurde vorgenommen. An 6 Proben wurden die Versagensart und die dabei auftretenden Kräfte und Verformungen ermittelt. Die Arbeit wurde bereits im Jahr 1986 durchgeführt

    Disability matters: IDEIA, Section 504, and ADA: What do these acts mean for African American learners who experience intellectual disabilities? A critical literature review

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    Adult learners with an intellectual disability have legal protections to access post-secondary learning and vocational opportunities. As individuals strive to maximize potential in the disability space, do cultural barriers of racism disrupt the potential for African American adult learners with intellectual disabilities? One implicit assumption is that race and social status affect advocacy efforts for learners during K-12 experiences, and the adult learners’ ability to self-advocate

    Measuring the Satisfaction of Students at the Completion of an Adult Learning and Development Graduate Program

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    The purpose of this empirical paper is to discuss the level in which the students nearing graduation from an adult learning and development graduate program were satisfied with their learning experience. Historically, colleges and universities have been regulated by accreditation agencies, such as the North Central Association of Colleges and Schools, for the purpose of assuring that the adult learners will receive the level of education necessary to perform effectively in professional practice. Colleges of education are further regulated by agencies, such as NCATE. However, state departments of education are now requiring state institutions of higher learning to justify the need for academic programs and the level of training that is being administered in the classroom (Brand, 1997). Colleges and universities are being micromanaged from the state-level similar to the market driven model described by Kotler and Fox (1995). Faculty are now finding they are responsible for assuring the success of their educational program through numerous factors such as program enrollment, recruitment, student retention, student learning gains, and student satisfaction (Brand, 2000). Donaldson and Graham (1999) developed a model suggesting that college outcomes are dependent upon the five elements of (1) prior experience, (2) orienting frameworks (e.g., motivation, self-confidence, and values), (3) the adult’s cognition (e.g., declarative, procedural, and self-regulation of knowledge structures and processes), (4) the “connecting classroom” (e.g., avenue for social engagement and negotiating meaning for learning), and (5) the life-world environment (e.g., family, work, and community). Edwards and Usher (1997) examined the understanding of knowledge and education, the place of the university, and the responsibilities for adult educators with respect to economic, social, and cultural dimensions. A study of graduate students found that the academic programs’ level of program integration, responsiveness to change, and leadership explained 26% of the predicted value in the change of student enrollment (Milton, Watkins, Spears-Studdard, & Burch, 2003). The literature does illustrate studies that address many contextual factors between the adult learner and higher education. However, the studies do not address the degree to which the academic program is meeting the needs of the adult learners and the demands from governing accreditation agencies, state departments of education, and the administrators of higher education. The purpose of this study was to understand the level to which our graduate students were satisfied with their learning experience while pursuing a master’s degree in adult learning and development

    Making Meaning of the Retirement Portfolio and its Impact on Learning in the Third Age

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    This roundtable examines relevant literature concerning the impact of one’s retirement portfolio and the economic self-sufficiency essential for learning and living in the Third Age of life. Third Agers are conceptualized as active retirement aged individuals, in good health with possibly 20+ years of life ahead of them

    Supporting Learning in Art History – Artificial Intelligence in Digital Humanities Education

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    In recent years and especially in the context of the coronavirus pandemic, digital distance learning increases. But for academic students, the selection of adequate learning materials for educational purposes is becoming more and more complex. This marks only one starting point where the use of artificial intelligence (AI) offers additional value. AI has a great potential to enhance and support research and education in the field of digital humanities (DH). As international organisations have just expressed their thoughts on the subject, AI is the topic par excellence and will decisively shape the future development of educational processes
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