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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.
41

Photoelasticity applied in a comparative study of four types of cavity preparations for primary molars a thesis submitted in partial fulfillment ... in dentistry for children ... /

Castro, Maria Elena. January 1952 (has links)
Thesis (M.S.)--University of Michigan, 1952.
42

A study of cavity preparations by the use of photoelasticity [children's dentistry] /

Noonan, Melvin A. January 1900 (has links)
Thesis (M.S.)--University of Michigan, 1949.
43

Timing of Motor Preparation for Indirectly Cued vs. Directly Cued Movements During a Visuomotor Mental Rotation Task

Drummond, Neil M. January 2012 (has links)
Previous investigations comparing direct versus indirectly cued movements have consistently shown that indirectly cued movements take longer to prepare (Neely and Heath, 2010) and involve the recruitment of additional brain areas (Connolly et al., 2000). This increase in processing time has been associated with the additional cognitive transformations required of the task (Neely and Heath, 2010). In the present study we investigated whether differences between direct versus indirectly cued movements are also reflected in the time course of motor preparation. Participants performed a targeting task, moving directly to the location of a visual cue (i.e., directly cued movement) or to a location that differed by 60˚, 90˚, or 120˚ with respect to the visual cue provided (i.e., indirectly cued movements). Participants were instructed to initiate their movements concurrently with an anticipated go-signal. To examine the time course of motor preparation, a startling acoustic stimulus (SAS, 124dB) was randomly presented 150 ms, 500 ms, or 1000 ms prior to the go-signal. Results from the startle trials revealed that the time course of motor preparation was similar regardless of the angle of rotation required and hence whether it was a direct or indirectly cued trial. Specifically, motor preparation was delayed until less than 500 ms prior to movement initiation for both direct and indirectly cued movements. These findings indicate that similar motor preparation strategies are engaged for both types of cued movements, suggesting that the time to prepare a motor response may be similar regardless of whether a cognitive transformation is required.
44

An Interpretative Phenomenological Analysis of Counselor Education Doctoral Students' Teaching Preparation Experiences

Wiley, Jonathan D. 24 April 2020 (has links)
Teaching is a foundational professional role addressed within the curriculum of counselor education doctoral programs, yet little is known about the teaching preparation experiences of counselor education doctoral students. This interpretative phenomenological analysis explored the teaching preparation experiences of a purposeful sample of eight current or recently graduated counselor education doctoral students enrolled in Doctor of Philosophy (Ph.D.) programs accredited by the Council for Accreditation of Counseling and Related Educational Programs (CACREP) through semi-structured interviews. Four superordinate themes, Experiential Integration, Contextual Development, Interactive Reflection, and Emergent Teaching Values, were identified to illustrate how counselor education doctoral students make sense of their teaching preparation experiences. These themes provide in-depth, nuanced, and narrative accounts of the multifaceted, experiential, relational, and contextual developmental teaching preparation experiences of counselor education doctoral students. The findings of this study revealed several important implications for counselor education doctoral students, counselor educations, counselor education doctoral programs, and CACREP to enhance the teaching preparation experiences of counselor education doctoral students. This study overall extends our knowledge of counselor education doctoral students' teaching preparation experiences, adding to a growing body of literature on doctoral teaching preparation in counselor education. / Doctor of Philosophy / Teaching is a foundational professional role addressed within the curriculum of counselor education doctoral programs, yet little is known about the teaching preparation experiences of counselor education doctoral students. This qualitative study explored the teaching preparation experiences of eight current or recently graduated counselor education doctoral students enrolled in accredited counselor education Doctor of Philosophy (Ph.D.) programs. This study used in-depth interviews with counselor education doctoral students to understand how they make sense of their teaching preparation experiences. The analysis of the transcripts of the in-depth interviews revealed four themes that describe experiences, contexts, reflections, and values related to counselor education doctoral students' teaching preparation experiences. These themes provide detailed accounts of the many facets of counselor education doctoral students' teaching preparation experiences. These findings revealed implications for students, educators, degree programs, and accreditation organizations within counselor education that can enhance the teaching preparation experiences of counselor education doctoral students. This study overall extends our knowledge of counselor education doctoral students' teaching preparation experiences. Advancing our understanding of the teaching preparation experiences of counselor education doctoral students can improve the quality of the teaching, learning, and development facilitated through counselor training programs.
45

The mechanical principles of cavity preparation for posterior cast gold restorations : to be presented as section A - Review of the literature, section B -Original contribution

Hyde, P. F January 1985 (has links)
Master of Dental Surgery / This work was digitised and made available on open access by the University of Sydney, Faculty of Dentistry and Sydney eScholarship . It may only be used for the purposes of research and study. Where possible, the Faculty will try to notify the author of this work. If you have any inquiries or issues regarding this work being made available please contact the Sydney eScholarship Repository Coordinator - ses@library.usyd.edu.au
46

A prospective study on the relevance of skin preparation for noise, impedance and ECG intervals among healthy males

Jonasson, Linda January 2007 (has links)
<p>Background and purpose: The relevance of skin preparation</p><p>by abrasion preceded or not by alcohol cleansing for digital</p><p>ECG (dECGs) variables was prospectively evaluated.</p><p>Methods: In 22 healthy male subjects (40.2±9.7 years) dECGs</p><p>were recorded continuously over 5 minute periods at 5 different</p><p>time points at 3 separate 24-hour visits, employing 2 electrode</p><p>types and no skin preparation, abrasion and alcohol cleansing</p><p>before abrasion. Smoothed means dECG data covering 5</p><p>minutes used for statistical analysis on leads V2-3 and V5.</p><p>Results: Significant of skin preparation with reductions for</p><p>skin-impedance and noise (p<0.0001 – p=0.35) for all leads,</p><p>and with no further effect by alcohol cleansing (p>0.46). PRintervals</p><p>were significantly prolonged by skin preparation</p><p>(p=0.0003 – p=0.0165) in leads V2-3 at 120 and 1 440 minutes;</p><p>with additional impact of alcohol at 1 440 minutes (p=0.0005).</p><p>Subject comfort was markedly higher with one of the electrode</p><p>types (p<0.0001).</p><p>Conclusion: Skin preparation by abrasion should be employed</p><p>prior to dECG recordings to improve signal properties.</p><p>Cleansing with alcohol is generally not warranted. Skin</p><p>irritation is dependant on choice of electrode.</p>
47

A prospective study on the relevance of skin preparation for noise, impedance and ECG intervals among healthy males

Jonasson, Linda January 2007 (has links)
Background and purpose: The relevance of skin preparation by abrasion preceded or not by alcohol cleansing for digital ECG (dECGs) variables was prospectively evaluated. Methods: In 22 healthy male subjects (40.2±9.7 years) dECGs were recorded continuously over 5 minute periods at 5 different time points at 3 separate 24-hour visits, employing 2 electrode types and no skin preparation, abrasion and alcohol cleansing before abrasion. Smoothed means dECG data covering 5 minutes used for statistical analysis on leads V2-3 and V5. Results: Significant of skin preparation with reductions for skin-impedance and noise (p<0.0001 – p=0.35) for all leads, and with no further effect by alcohol cleansing (p>0.46). PRintervals were significantly prolonged by skin preparation (p=0.0003 – p=0.0165) in leads V2-3 at 120 and 1 440 minutes; with additional impact of alcohol at 1 440 minutes (p=0.0005). Subject comfort was markedly higher with one of the electrode types (p<0.0001). Conclusion: Skin preparation by abrasion should be employed prior to dECG recordings to improve signal properties. Cleansing with alcohol is generally not warranted. Skin irritation is dependant on choice of electrode.
48

Character education in teacher education programs

Sacher, Constance 21 December 2004
This study examined the extent to which character education has a place in teacher education programs in Saskatchewan. Teacher educators (faculty and sessional lecturers) from two teacher education programs in Saskatchewan and new teachers (those with five years of teaching experience or less) from two urban school divisions in Saskatchewan were surveyed. The survey explored how participants felt about three facets of character education within teacher education programs: the teaching of character education methodology, the enhancement of pre-service teachers character, and the responsibility for character education. The results showed that both teachers and teacher educators felt that character education should be taught in publicly funded schools (K-12) and that character education methodology should be taught within teacher preparation programs. Survey results showed that even though the majority of participants felt that character education should be taught in public schools and that character education methodology should be taught within teacher education programs, pre-service teachers, for the most part, were not being given instruction in character education.
49

Preparing Teachers for Effective Literacy Instruction in the Elementary Grades: Two-year Teacher Preparation Programs in Ontario

Heredia, Blanca 09 June 2011 (has links)
Research evidence suggests that quality teacher preparation sets beginning teachers on the right track for effectively teaching literacy. Given that most of the research has been conducted in the United States, there is a shortage of knowledge of the impact of teacher preparation for elementary literacy instruction in Canada. Similarly, little is known about the effect of program length and structure on graduates’ knowledge and skills. This thesis contains two studies aimed at addressing these gaps in the literature in the Ontario context. The majority of teacher preparation programs in Ontario are completed in one year, with the exception of 2 two-year teacher preparation programs. Study 1 is an exploratory investigation comparing the survey responses of 38 graduates from two-year programs with the responses of a matched sample of graduates from one-year programs on items related to their preparation for elementary literacy instruction. Paired-sample t-tests revealed that graduates from two-year programs reported spending significantly more time discussing literacy-related issues, had better knowledge of key literacy terms, felt better prepared for literacy instruction and were more likely to include evidence-based components as part of their literacy program. Study 2 is a qualitative investigation of two-year teacher preparation programs with a focus on literacy instruction. Thirty-eight graduates from both two-year programs in Ontario completed a survey. Ten of these graduates also completed an interview. Following a modified Grounded Theory approach, Study 2 presents a detailed analysis of two-year programs in Ontario including: a) the range of content regarding literacy instruction; b) the correspondence between the content and the evidence-based knowledge of effective literacy instruction; c) graduates’ knowledge base and skills for literacy instruction; and d) their feelings of preparedness. From a socio-cultural perspective, Study 2 also explored the processes and contexts that influence graduates’ formation as literacy instructors. The findings served as the basis for proposing a model for teacher preparation that encompasses the processes and contexts that mediate pre-service teachers’ development as literacy instructors. The proposed model outlines the necessary components to effectively prepare prospective teachers, based on scientific evidence, to ensure that all children learn to read and write.
50

Preparing Teachers for Effective Literacy Instruction in the Elementary Grades: Two-year Teacher Preparation Programs in Ontario

Heredia, Blanca 09 June 2011 (has links)
Research evidence suggests that quality teacher preparation sets beginning teachers on the right track for effectively teaching literacy. Given that most of the research has been conducted in the United States, there is a shortage of knowledge of the impact of teacher preparation for elementary literacy instruction in Canada. Similarly, little is known about the effect of program length and structure on graduates’ knowledge and skills. This thesis contains two studies aimed at addressing these gaps in the literature in the Ontario context. The majority of teacher preparation programs in Ontario are completed in one year, with the exception of 2 two-year teacher preparation programs. Study 1 is an exploratory investigation comparing the survey responses of 38 graduates from two-year programs with the responses of a matched sample of graduates from one-year programs on items related to their preparation for elementary literacy instruction. Paired-sample t-tests revealed that graduates from two-year programs reported spending significantly more time discussing literacy-related issues, had better knowledge of key literacy terms, felt better prepared for literacy instruction and were more likely to include evidence-based components as part of their literacy program. Study 2 is a qualitative investigation of two-year teacher preparation programs with a focus on literacy instruction. Thirty-eight graduates from both two-year programs in Ontario completed a survey. Ten of these graduates also completed an interview. Following a modified Grounded Theory approach, Study 2 presents a detailed analysis of two-year programs in Ontario including: a) the range of content regarding literacy instruction; b) the correspondence between the content and the evidence-based knowledge of effective literacy instruction; c) graduates’ knowledge base and skills for literacy instruction; and d) their feelings of preparedness. From a socio-cultural perspective, Study 2 also explored the processes and contexts that influence graduates’ formation as literacy instructors. The findings served as the basis for proposing a model for teacher preparation that encompasses the processes and contexts that mediate pre-service teachers’ development as literacy instructors. The proposed model outlines the necessary components to effectively prepare prospective teachers, based on scientific evidence, to ensure that all children learn to read and write.

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