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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.
131

An analysis of the relationship between writing skills and Short Messaging Service language : a self–regulatory perspective / Candice Proudfoot

Proudfoot, Candice January 2011 (has links)
Self–regulation in writing is viewed as critically important in order to be a good writer. With the advent of cellular telephony, what passes as ‘good’ writing is being challenged with the introduction of the abbreviated form of SMS (Short Messaging Service) language. The purpose of this study was to determine the nature of the changes in SMS spelling and whether or not these changes affected the participants’ spelling age and their ability to write formally within the context of a formal SMS and the English language class. This study also aimed to determine whether a relationship exists between self–regulatory skills and writing in SMS. A sequential explanatory mixed–method research design was selected in order to address the research questions which had been posed. The study examined the nature of Short Messaging Service (SMS) language and the relationship between self–regulation and SMS, using a dominant quantitative survey design which was followed by a qualitative phase which explored and explained the phenomena which had been exposed in the quantitative phase of this study. The results of this study indicated that SMS language is an abbreviated form of digital writing, which is colloquial and informal in nature. SMS language is used in SMS text messages and within the forum of the chatroom MXit. The results also indicated that the participants in this study use the self–regulatory strategies of goal setting, strategic planning, self–recording, self–evaluation and self–reaction when writing SMS text messages that are more formal in nature. Furthermore, no evidence of SMS language could be found in an analysis of writing portfolios, indicating that SMS language does not affect the academic writing skills of the participants in this study. The main conclusion was that although this study was completed on a very small scale and that it would be inappropriate to generalise, the implementation of and research regarding the nature of SMS and self–regulation in SMS writing, require attention in order to ensure that the self–regulatory skills possessed by learners in our schools are used optimally in order to promote literacy and good writing practices. / Thesis (Ph.D. (Learning and Teaching))--North-West University, Potchefstroom Campus, 2011.
132

'n Model vir die ontwikkeling van die selfgereguleerde leervaardighede van afstandsleerders / B.W. Geduld

Geduld, Bernadette Winefrede January 2011 (has links)
Die doel met hierdie navorsing was om ‘n analise van die selfgereguleerde leervaardighede van leerders in die BEd Honneurs Oopafstandsleerprogram te doen en ‘n onderrigmodel daar te stel om genoemde vaardighede te verbeter. Om hierdie doel te bereik is ‘n literatuurstudie onderneem ten einde a) leer te omskryf volgens die behavioristiese, sosiaal–kognitiewe, inligtingverwerkings, konstruktiwistiese teorieë en volwasse leerteorieë; b) selfgereguleerde leer te omskryf vanuit die behaviouristiese, fenomenologiese, Vygotskiaanse, kognitief–konstruktivistiese en sosiaal–kognitiewe beskouinge, met die klem op laasgenoemde beskouing en c) afstandsleer en die vereistes wat afstandsleer en selfgereguleerde leer aan afstandsleerders stel, te beskryf. Vanuit literatuur is bepaal dat effektiewe leer gedefinieer word vanuit die navorser se oriëntasie tot leer sowel as die aard van leer in ‘n spesifieke konteks. Die verskillende leerteorieë beklemtoon verskillende aspekte van leer en hou verskillende implikasies in vir programontwerp, rolle van onderriggewers, leermetodes en assessering. Verder dui literatuur op ‘n positiewe verband tussen selfgereguleerde leer en akademiese prestasie. Terselfdertyd dui bestaande literatuur daarop dat suksesvolle afstandsleerders selfregulerend moet kan leer en dus oor sodanige vaardighede moet beskik. Die navorsingspopulasie het bestaan uit BEd Honneurs oopafstandsleerders van Noordwes–Universiteit asook fleksieleerders van die Noordwes–Universiteit, Potchefstroomkampus wat alreeds eksamen afgelê het in die Leerperspektiewe module. Die teikengroep het bestaan uit leerders wat reeds vroeër eksamen afgelê het in die module LEON 611 en tydens kontaksessies in 2010 by spesifieke kontaksentrums en vakansieskole bygewoon en die vraelyste voltooi het (n=264). ‘n Multi–metode ontwerp is geïmplementeer waar ‘n kombinasie van kwantitatiewe en kwalitatiewe navorsing aangewend is om die navorsingsprobleem beter te verstaan. Kwantitatiewe data is ingesamel aan die hand van vier vraelyste waarná aanvullende kwalitatiewe data–insameling met semi–gestruktureerde onderhoude gevolg het. Kwantitatiewe navorsing het geskied aan die hand van ‘n ex post facto–benadering en data is statisties ontleed deur middel van a) faktoranalise, b) meervoudige regressie–analise, c) stapsgewyse regressie–analise en d) effekgroottes. Kwalitatiewe data is met behulp van ATLAS.ti.6.0 - ‘n rekenaarondersteunde stelsel, ontleed. Resultate van die ondersoek dui daarop dat deelnemers nie voldoen aan al die vereistes vir effektiewe afstandsleer nie. Bereiking van leerdoelwitte is in ‘n groot mate afhanklik van die steun van onderriggewers en porture. Hul beskik nie oor inligtingstegnologiese vaardighede nie en kan nie effektief leer waar nie–moedertaalonderrig ter sprake is nie. In teenstelling met bestaande literatuur dui kwantitatiewe en kwalitatiewe resultate op ‘n lae verband bestaan tussen afstandsleerders se selfgereguleerde leervaardighed en hul akademiese prestasie. Deelnemers maak selde gebruik van selfgereguleerde leervaardighede soos ter sprake tydens die voorafdenkfase maar meer tydens die wilsbeheer– en selfreaksiefases. ‘n Model is ontwikkel vir die verbetering van selfgereguleerde leervaardighede van oopafstandsleerders, inbegrepe deurlopende ontwikkeling van akademiese taalvaardigheid en inligtingstegnologiese vaardighede. Aanpassings in studiemateriaal en verandering van onderrigstrategieë en terugvoer is belangrike aspekte van die model. / Thesis (Ph.D. (Education))--North-West University, Potchefstroom Campus, 2011.
133

An analysis of the relationship between writing skills and Short Messaging Service language : a self–regulatory perspective / Candice Proudfoot

Proudfoot, Candice January 2011 (has links)
Self–regulation in writing is viewed as critically important in order to be a good writer. With the advent of cellular telephony, what passes as ‘good’ writing is being challenged with the introduction of the abbreviated form of SMS (Short Messaging Service) language. The purpose of this study was to determine the nature of the changes in SMS spelling and whether or not these changes affected the participants’ spelling age and their ability to write formally within the context of a formal SMS and the English language class. This study also aimed to determine whether a relationship exists between self–regulatory skills and writing in SMS. A sequential explanatory mixed–method research design was selected in order to address the research questions which had been posed. The study examined the nature of Short Messaging Service (SMS) language and the relationship between self–regulation and SMS, using a dominant quantitative survey design which was followed by a qualitative phase which explored and explained the phenomena which had been exposed in the quantitative phase of this study. The results of this study indicated that SMS language is an abbreviated form of digital writing, which is colloquial and informal in nature. SMS language is used in SMS text messages and within the forum of the chatroom MXit. The results also indicated that the participants in this study use the self–regulatory strategies of goal setting, strategic planning, self–recording, self–evaluation and self–reaction when writing SMS text messages that are more formal in nature. Furthermore, no evidence of SMS language could be found in an analysis of writing portfolios, indicating that SMS language does not affect the academic writing skills of the participants in this study. The main conclusion was that although this study was completed on a very small scale and that it would be inappropriate to generalise, the implementation of and research regarding the nature of SMS and self–regulation in SMS writing, require attention in order to ensure that the self–regulatory skills possessed by learners in our schools are used optimally in order to promote literacy and good writing practices. / Thesis (Ph.D. (Learning and Teaching))--North-West University, Potchefstroom Campus, 2011.
134

STEPS TO PARNASSUS: The Effects of Guided Practice On Junior and Intermediate School Musicians

Picone, John 19 December 2012 (has links)
Practicing is an ineluctable component in the pursuit of achieving musical goals. This is particularly true in the Western model of music education that is, for the most part, characterized by private lessons or ensemble rehearsals that typically occur only once each week. How dependent is the motivation to learn music on effective practicing? Novices often abandon music education simply because “it’s too hard.” Is the frustration the result of a lack of success due to ineffective practicing? Effective practicing evolves naturally with increased musical knowledge and expertise. Overall, a musician’s development towards effective practicing may be described as the acquisition of a metacognitive awareness of one’s own learning and hence a more active participation in that learning that is characterized by self-regulatory behaviours. This research asks if guided practice at an early age might prove a catalyst in the development of effective practicing which naturally occurs with musical expertise. Over the course of an academic school year, 13 novice musicians engaged in guided practice sessions with the researcher. The participants were private piano students and young band members. Data gathered through interviews, questionnaires and video recordings of lessons and practice sessions at the musicians’ homes were analyzed within the theoretical framework of self-regulation. Data were also analyzed according to a self-system theoretical framework of expectancy-value theory, self-determination theory, attribution theory, and goal orientation. Evidence from the data suggests an increase in cognitive and metacognitive processes that characterize self-regulated learning. Musicians also indicate an increase in motivation to engage in practicing as well as greater self-efficacy in addressing musical challenges. Effective pedagogical approaches for guided practice are discussed as are implications for music education. Suggestions are made for further research.
135

Because I love playing my instrument : Young musicians' internalised motivation and self-regulated practising behaviour

Renwick, James Michael, English, Media, & Performing Arts, Faculty of Arts & Social Sciences, UNSW January 2008 (has links)
Self-regulated learning theory explains how it is not only the amount of time musicians spend practising that affects achievement, but also the nature of the strategies employed. Because practice is self-directed, motivational effects on its efficiency are especially salient. One construct that has received little attention in relation to practising is self-determination theory, which interprets motivation as lying along a continuum of perceived autonomy. This mixed-methods study investigated links between motivational beliefs and self-regulated practising behaviour through a two-phase design. In Phase One, 677 music examination candidates aged 8-19 completed a questionnaire consisting of items addressing practising behaviour and perceived musical competence; in addition, the Self-Regulation Questionnaire (SRQ; Ryan & Connell, 1989) was adapted to explore intrinsic-extrinsic motives for learning an instrument. Factor analysis of the SRQ revealed five dimensions with partial correspondence to earlier research: internal, external, social, shame-related, and exam-related motives. Three practice behaviour factors consistent with self-regulated learning theory emerged: effort management, monitoring, and strategy use. Results of structural equation modelling showed that internal motivation accounted best for variance in these three types of practising behaviour, with a small added effect from competence beliefs and exam-related motivation. Phase Two consisted of observational case studies of four of the questionnaire participants preparing for their subsequent annual examination. Adolescent, intermediate-level musicians were recorded while practising at home; immediately afterwards, they watched the videotape and verbalised any recollected thoughts. The procedure concluded with a semi-structured interview and debriefing. The videotapes were analysed with The Observer Video-Pro and combined with verbal data; emerging themes were then compared with issues arising from the interviews. The observational aspect of the case studies largely confirmed the importance of three cyclical self-regulatory processes emerging from Phase One: (a) effort management and motivational self-regulation, (b) the role of self-monitoring of accuracy, and (c) the use of corrective strategies, such as structured repetition, task simplification, and vocalisation. The mixture of quantitative and qualitative methods used in the study has uncovered a rich body of information that begins to clarify the complex motivational and behavioural nature of young people practising a musical instrument.
136

Effects of self-regulatory aids on autonomous study

Bednall, Timothy Colin, Psychology, Faculty of Science, UNSW January 2009 (has links)
The experiments described in this thesis tested whether encouraging the use of self-regulatory learning strategies enhances the effectiveness of autonomous study for novices in a learning domain. Previous research and theory have suggested that high-achieving students are proficient at self-regulating their learning, and they do so using a range of learning strategies for planning their study, monitoring the effectiveness of their efforts and elaborating their knowledge. Information processing theories of instructional design suggest that learning is optimal when working memory load is managed effectively. Accordingly, methods have been devised for reducing load associated with unnecessary task requirements, as well as dedicating additional capacity to the construction and automation of knowledge schemas. Less is known, however, about instructional methods for encouraging self-regulatory learning strategies. Experiments 1, 2 and 4 examined the effect of encouraging participants to reflect on their understanding of topics they had been taught previously. Although these participants were able to accurately estimate their level of understanding in some situations, they failed to consistently use this knowledge to guide their study of topics they had previously understood poorly. In light of this finding, Experiments 3 and 5 examined the effect of encouraging participants to plan a free study period, with the direction to prioritise the topics that they had understood the least well. This intervention had a modest positive effect on post-test performance. Experiment 6 examined the effect of encouraging two elaborative strategies, namely explanation generation and summarisation. The former benefited performance, whereas the effectiveness of the latter depended on the comprehensiveness of the summaries produced by the participants. Finally, Experiment 7 examined the effect of providing broad-spectrum instruction in learning strategies, with minimal requirements to engage in specific strategies. This intervention resulted in an overall benefit to performance. Overall, the results of this dissertation suggest that certain instructional aids for self-regulation yield benefits to the autonomous study by domain novices without overburdening working memory.
137

Effects of glucose and free fatty acids on ERK1/2 in pancreatic B-cells

Arnette, Donald Ervin, Jr. January 2005 (has links) (PDF)
Thesis (Ph. D.) -- University of Texas Southwestern Medical Center at Dallas, 2005. / Vita. Bibliography: 86-98.
138

Studies on inhibition against anthrax lethal toxin

Li, Feng. January 2010 (has links) (PDF)
Thesis (Ph. D.)--University of Oklahoma. / Bibliography: leaves 156-168.
139

Studies of the adduction of hepatocellular proteins by 4-HNE in animals [sic] models of alcoholic liver disease : systematic analysis of hepatocellular Erk 1/2 modulation and dysregulation of the Erk-Elk-AP1 signal transduction pathway /

Sampey, Brante P. January 2005 (has links)
Thesis (Ph.D. in Toxicology) -- University of Colorado, 2005. / Typescript. Includes bibliographical references (leaves 141-156). Free to UCDHSC affiliates. Online version available via ProQuest Digital Dissertations;
140

Analysis of the pseudorabies virus tegument proteins Us3, VP22 and Us2 /

Lyman, Mathew G. January 2005 (has links)
Thesis (Ph.D. in Microbiology) -- University of Colorado at Denver and Health Sciences Center, 2005. / Typescript. Includes bibliographical references (leaves 142-168). Free to UCDHSC affiliates. Online version available via ProQuest Digital Dissertations;

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