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Moment Variations is a three-movement composition for chamber orchestra and chamber choir of approximately 21 minutes duration. The basis of this piece is compositional unity through variations technique, where the retained element of the theme is its structure or fixed-structure variations.The fixed-structure is a succession of six musical events, called moments, in the order: I II III II IV V III V VI, where moments II, III, and V are internally repeated and I, IV, and VI occur only once.

Constellations is a single movement work that explores the color between acoustic instruments and computer generated sounds. It is scored for four flutes (two doubling on piccolos), two oboes, two bassoons, eight B-flat clarinets, two bass B-flat clarinets; two alto saxophones, tenor saxophone, baritone saxophone; four trumpets in B-flat, four horns in F; three trombones, bass trombone; two tubas;piano; six percussionists; and contrabass. The duration of the work is nine minutes and twenty-eight seconds. Mapping of stellar constellations provide the primary material for all pitch and harmonic progressions throughout the work. Software synthesis and digital sampling techniques coalesce to produce the computer music on tape.

published_or_final_version / abstract / Music / Master / Master of Philosophy

Autographs 1928: Four Songs for Soprano and Chamber Ensemble is a composition of approximately 16 minutes' duration and is scored for mezzo-soprano, flute, oboe, clarinet, horn in F, viola, violoncello, one keyboardist (piano and celesta), and two percussionists (marimba, xylophone, chimes, timpani, bass drum, temple blocks, triangle, and slapstick). The work consists of four songs and four readings with texts from Walls's maternal grandmother's autograph book. The composition opens with a reading and alternates between readings and songs. The music is intended to reflect the playful, tender and humorous nature of the lyrics.

Sacred Symphony is a work for orchestra, chorus and 8 soloists. It is scored for three horns in F, three trumpets in B flat (1st doubling trumpet in C), tenor trombone, bass trombone, percussion, celesta, piano and strings. The percussion consists of suspended cymbal, glockenspiel, vibraphone, marimba, bass marimba, tenor drum, snare drum, bass drum, two slit drums (4 tom-toms if unavailable), small triangle, and finger cymbals. The work is in three movements: Sanctus, Beatitudes (Matt. 5: 3-12) and Gloria. The Sanctus primarily gives glory to God the Father while the Beatitudes are Christ's own words. The Gloria acts as a culmination of the previous two movements because it gives glory to both the Father and the Son.

The Garden Of Eden is a ballet for four instrumental quintets: brass, woodwind, string, and percussion. Each ensemble is associated with one of four dancers: God, Adam, Eve, -and the Serpent, respectively. The duration of this ballet is approximately sixteen minutes and is divided into three parts depicting (1) the creation of the world and Adam; (2) the creation of Eve-and the warning about the tree of knowledge; and (3) the Serpent's temptation of the main characters, as well as their subsequent banishment from the garden by God. One of my reasons for composing this work was to answer an important question: how to control musical motion and emotion. Since ballet incorporates both motion in its choreography and emotion in its program, it provided a perfect medium in which to work.

The comparability of PPVT and PPVT-R scores among retarded adults were examined. The sample consisted of 96 clients, who had been previously diagnosed as mildly, moderately, or severely retarded. The PPVT (Form A) and PPVT-R (Form L) were administered to all participants in counter balanced order. Significant correlations were found between the two tests for the total sample as well as for females and males. Additionally, the PPVT-R was found to be capable of discriminating differing levels or retardation. However, with the exception of the severely retarded group, mean PPVT-R Standard Score Equivalent (SSE) scores tended to be approximately 20 points lower than PPVT IQ scores. Some clinical implications of these results were discussed.

De nombreux facteurs de risque cardiovasculaire comme l’hypercholestérolémie, l’hypertension, et le diabète sont comptés parmi les facteurs de risque modifiables les plus importants pour le déclin cognitif et la démence. L’exposition à ces facteurs de risque au cours de la vie en particulier avant l’âge de 65 ans ainsi que leur agrégation contribuent de manière plus importante au déclin cognitif. Peu d’études se sont intéressées aux mesures composites de risque cardiovasculaire par rapport à la fonction cognitive chez les sujets de moins de 65 ans. L’objectif de cette thèse était d’étudier l’association entre les mesures composites de risque et le déclin cognitif au cours de la phase précocedu vieillissement. Les données de la cohorte Whitehall II dans laquelle les fonctions cognitives ont été mesurées à trois reprises ont été utilisées pour étudier l’association entre le syndrome métabolique et deux scores de risque de Framingham (de maladie cardiovasculaire globale et d’AVC), et la fonction cognitive et le déclin cognitif sur 10 ans. Les scores de risque cardiovasculaire de Framingham ont aussi été comparés avec un score de risque de démence. De toutes les mesures composites de risque étudiées, les scores de risque de Framingham montraient la plus forteassociation avec le déclin cognitif. Un risque cardiovasculaire plus élevé était associé à un déclin plus rapide dans de multiples tests cognitifs dont la fluence verbale, le vocabulaire et la cognition globale. Ces résultats suggèrent d’une part qu’un risque cardiovasculaire plus élevé contribue au déclin cognitif dès la phase précoce de vieillissement et d’autre part que l’estimation du risque cardiovasculaire et son effet sur la fonction cognitive nécessite une approche multifactorielle.L’identification et la réduction de facteurs de risque cardiovasculaire peuvent avoir un impact important sur la réduction du déclin cognitif et de la démence. / Several cardiovascular disease risk factors including, dyslipidemia, high blood pressure, and diabetes have been proposed as important modifiable risk factors for cognitive decline and dementia. These risk factors often co-occur and their aggregation is associated with increased risk of cardiovascular disease and dementia. However, studies of composite measures of cardiovascular disease risk in relation to cognitive outcomes in non-elderly populations are scarce. The aim of this thesis was to examine composite measures of risk in relation to cognition and longitudinal cognitive change amongmiddle-aged adults. Data from the Whitehall II study were used to study the associations between the metabolic syndrome, two Framingham risk scores; the Framingham stroke and general cardiovascular disease risk scores, and cognition, based on three cognitive assessments over 10 years. In addition, these two (cardio)vascular risk scores were compared with the CAIDE dementia risk score. Of all composite measures of risk examined, the two Framingham risk scores were the best predictors of 10-year cognitive decline. Higher cardiovascular risk was associated with faster 10-year decline inmultiple cognitive tests including verbal fluency, vocabulary and global cognition. These results suggest that multiple cardiovascular disease risk factors contribute to cognitive decline starting in midlife and that multi-risk factor models such as cardiovascular risk scores may be better suited to assessing risk of cognitive decline. Early identification and treatment of cardiovascular disease risk factors may offer the possibility of markedly delaying or preventing cognitive decline.

Flame -- Night poem II -- Peach-blossom spring. / Wong Hok-yeung, Alfred. / Thesis submitted in: December 2002. / Thesis (M.Mus.)--Chinese University of Hong Kong, 2003. / Abstracts in English and Chinese. / Composition / Chapter 1. --- Flame 《焰》 -for Organ Solo / Chapter 2. --- Night Poem II 《夜詩 II》》 -for Cello and Chinese Ensemble / Chapter 3. --- Peach-Blossom Spring 《桃花源記》 -for Bass and Orchestra