Photocopy of typescript. / Digitized by Kansas Correctional Industries

The lower Da-An River in western Taiwan was uplifted ~10 during the 1999 Mw 7.6 Chi-Chi earthquake, resulting in a 20- to 30-m-deep bedrock gorge. However, the amount of coseismic displacement along the channel bed does not fully explain the resulting bedrock channel incision. Using a series of aerial photographs, digital terrain models (DEM), and real-time kinematic global positioning system (RTK GPS) surveys, we characterized knickpoint retreat and fluvial incision in the Da-An River gorge. We also analyzed discharge and precipitation data and collected measurements of rock strength and joint plane orientations to understand the climatic, lithological, and structural influence on the evolution of the actively incising gorge. Two stages of fluvial incision and knickpoint migration are identified in the gorge following surface uplift during the Chi-Chi earthquake. From 1999 to 2004, 3 to 5 m of alluvium was removed from the channel bed, followed by 3 to 4 m of bedrock channel incision. The knickpoint generated immediately after the earthquake stayed where the uplift occurred at this time. Since 2005, the channel bed has lowered rapidly with local incision rate as high as 15 m/yr in terms of knickpoint migration. The average knickpoint migration rate over the period 2005 to 2009 was 238 m/yr; total upstream migration from the location of knickpoint formation was 1190 m. While tectonic uplift formed the knickpoint and set the stage for channel incision, climate played a critical role in accelerating the fluvial response to coseismic displacement. More than 20 m of bedrock channel incision and 1180 m knickpoint migration occurred during the post-2004 typhoon seasons (May-October). Based on repeat surveys of the Da-An River longitudinal profile and analysis of precipitation and discharge data, we suggest that a discharge threshold of 1200 to 2600 m³/s is required to initiate upstream knickpoint migration. However, once the threshold is exceeded, bedding dip becomes the primary control on rates and patterns of knickpoint propagation. Rotation occurred in a hinge zone where the bedding dips change from horizontal to upstream-dipping, while replacement was observed in the strata dipping upstream. The highest knickpoint migration rates (> 300 m/yr) were recorded in flat-lying, horizontal strata (< 10º) where parallel retreat was the dominate process. Overall, the knickpoint propagation followed the process of replacement behavior, in which the height of knickpoint decreases while migrating upstream. Thus, while tectonic processes set the initial conditions for knickpoint propagation in the Da-An River, the response time of the fluvial system to this forcing is strongly dependent on climate and local structure.

Thesis (M.A.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 65-69).

This study examined the effects of three computer-assisted cuing programs on the observational learning of a Tai Chi action sequence by thirty-one novice adult learners. Digital video demonstrations with visual cues, verbal cues, and both visual and verbal cues as well as no cues were presented. On the first and fifth trial participants completed a cognitive resequencing task, and on each of five learning trials attempted to physically perform the sequence. A retention test was also administered. The Pictorial Cognitive Resequencing Task results were somewhat equivocal as some of the treatment programs facilitated enhanced performance but participants in the "control" group also improved their performance. Physical performance as measured by the Technical Action Score and the Flow Action Score showed that the "visual and verbal treatment" group significantly improved performance in comparison to the "control" group. Based on the results and post-test interviews suggestions for future research were presented.

Thesis (M. Phil.)--University of Hong Kong, 2008. / Also available in print.

Thesis (Ph.D.)--University of California, San Francisco, 2005. / Includes bibliographical references. Also available online.

This thesis is an examination of Nguyen Ai Quoc's (Ho Chi Minh's) role in transmitting communism to Vietnam in the period between the First and Second World Wars. As the Third International (Comintern) provided the theory and much of the organizational support for this task, it is also a study of the Comintern's changing policies towards revolution in colonial countries. It has grown out of research in the Moscow archives of the Comintern, which first became available to researchers in late 1991-1992. It also makes extensive use of the French colonial archives at the Centre d'Archives d'Outre-Mer in Aix-en-Provence. This study begins with Nguyen Ai Quoc's appearance in Paris in 1919, when he lobbied the Paris Peace Conference for greater Vietnamese freedom and was then drawn into the political world of the French left. It follows his first contacts with the Comintern in Moscow (1923- 1924), through his two-year sojourn in Canton during the Communist-Guomindang United Front, when he established the first training courses for Vietnamese revolutionaries. Chapters IV and V cover his return to Asia in mid-1928, his founding of the Vietnamese Communist Party in 1930, and the 1930-31 insurrectionary movement in Vietnam. Chapter Six deals with his Jime 1931 arrest and his long period of political inactivity in Moscow, from mid-1934 until the autumn of 1938. The final chapter covers his return to southern China and his efforts to regain his influence in the Vietnamese communist movement from 1939 to 1941. The thesis concludes that, with the benefit of the documentary evidence now available, it is necessary to readjust the perception of Nguyen Ai Quoc as an influential communist during his early political career. Initially he received little financial support from Moscow and he never became a member of the Comintern Executive Committee. Nor did he exist entirely within the world of the Comintern. Although the latter was an essential force in the creation of Vietnamese communism, there were other factors which shaped its growth, including family and regional ties, as well as Chinese and French left-wing politics.

No description available.

abstract: It is common in the analysis of data to provide a goodness-of-fit test to assess the performance of a model. In the analysis of contingency tables, goodness-of-fit statistics are frequently employed when modeling social science, educational or psychological data where the interest is often directed at investigating the association among multi-categorical variables. Pearson's chi-squared statistic is well-known in goodness-of-fit testing, but it is sometimes considered to produce an omnibus test as it gives little guidance to the source of poor fit once the null hypothesis is rejected. However, its components can provide powerful directional tests. In this dissertation, orthogonal components are used to develop goodness-of-fit tests for models fit to the counts obtained from the cross-classification of multi-category dependent variables. Ordinal categories are assumed. Orthogonal components defined on marginals are obtained when analyzing multi-dimensional contingency tables through the use of the QR decomposition. A subset of these orthogonal components can be used to construct limited-information tests that allow one to identify the source of lack-of-fit and provide an increase in power compared to Pearson's test. These tests can address the adverse effects presented when data are sparse. The tests rely on the set of first- and second-order marginals jointly, the set of second-order marginals only, and the random forest method, a popular algorithm for modeling large complex data sets. The performance of these tests is compared to the likelihood ratio test as well as to tests based on orthogonal polynomial components. The derived goodness-of-fit tests are evaluated with studies for detecting two- and three-way associations that are not accounted for by a categorical variable factor model with a single latent variable. In addition the tests are used to investigate the case when the model misspecification involves parameter constraints for large and sparse contingency tables. The methodology proposed here is applied to data from the 38th round of the State Survey conducted by the Institute for Public Policy and Michigan State University Social Research (2005) . The results illustrate the use of the proposed techniques in the context of a sparse data set. / Dissertation/Thesis / Ph.D. Mathematics 2011

published_or_final_version / Sports Science / Master / Master of Science in Sports Science