859 research outputs found
Joseph Milford Nicholson (b. 1935) : pioneer trombone historian
No full textInterest in the history and development of the trombone and its literature escalated during the last half of the twentieth century. As curricula for doctoral degrees began to develop during the 1950s, trombonists in advanced degree programs began to recognize lapses in the history of the instrument. One of the earliest doctoral documents that focused upon creating a more comprehensive single source of trombone heritage was entitled, "A Historical Background of the Trombone and Its Music" (1967), by Joseph Milford Nicholson (b. 1935). Joseph Nicholson was born in Penoke, Kansas, on August 15, 1935. Raised in a musical family, he learned to play the trombone in the public school bands of his hometown, Fruita, Colorado. Later, Nicholson enrolled at Southwestern Bible Institute (1952-1955) and graduated from Texas Wesleyan College (B.Mus 1957). He earned the MME (1961) from North Texas State University and the D.M.A. (1967) from the Conservatory of Music at the University of Missouri at Kansas City (UMKC). Nicholson taught at Southwestern beginning in 1956, but left in 1960 to teach at Evangel College, Springfield, MO, where he taught until 1991. During his years at Evangel, Nicholson was chair of the Fine Arts Department (1967-1981), the principal trombonist in the Springfield (MO) Symphony (1966-1977), and an active member of the Springfield Brass Quintet (1966-1977). Nicholson pursued his interest in trombone history and literature while studying at UMKC. Because his text summarized into one document the current knowledge of the time about the history and literature of the trombone, Nicholson's work was one of the earliest to appear outside the context of the music dictionaries. Through his writing, teaching, and presentations, Nicholson is thought to have spurred interest among the next generation of trombonists who began to develop a more comprehensive chronicle of the trombone. Nicholson's legacy continues through his influence upon trombonists and the citations in later, more era-specific histories of the instrument."--Abstract from author supplied metadata
A novel methodology for the synthesis of complexes containing long carbon chains linking metal centres: molecular structures of {Ru(dppe)Cp*}(2)(mu-C(14)) and {Co(3)(mu-dppm)(CO)(7)}(2)(mu(3):mu(3)-C(16))
No full text© The Royal Society of Chemistry 2004Elimination of AuX(PR3)(X = halogen, R = Ph, tol) occurs readily in reactions between compounds containing C(sp)– or C(sp2)–X bonds and alkynyl or polyynyl gold(I) complexes; this reaction has been applied to the syntheses of complexes containing a variety of metal centres linked by Cn chains (n up to 16).Alla B. Antonova, Michael I. Bruce, Benjamin G. Ellis, Maryka Gaudio, Paul A. Humphrey, Martyn Jevric, Giovanni Melino, Brian K. Nicholson, Gary J. Perkins, Brian W. Skelton, Bronwin Stapleton, Allan H. White and Natasha N. Zaitsev
The exponential ordering for nonautonomous delay systems with applications to compartmental Nicholson systems
No full textProducción CientíficaThe exponential ordering is exploited in the context of nonautonomous delay
systems, inducing monotone skew-product semiflows under less restrictive conditions
than usual. Some dynamical concepts linked to the order, such as semiequilibria, are
considered for the exponential ordering, with implications for the determination of
the presence of uniform persistence or the existence of global attractors. Also, some
important conclusions on the long-term dynamics and attraction are obtained for
monotone and sublinear delay systems for this ordering. The results are then applied
to almost periodic Nicholson systems and new conditions are given for the existence
of a unique almost periodic positive solution which asymptotically attracts every
other positive solution.The first three authors were partly supported by MICIIN/FEDER project RTI2018- 096523-B-I00 and by Universidad de Valladolid under project PIP-TCESC-2020. The fourth author was partly supported by MICINN/FEDER under projects RTI2018-096523-B-I00 and PGC2018-097565-B-I0
Ehecatl Quetzalcoatl vs. Topiltzin Quetzalcoatl of Tollan: a Problem in Mesoamerican Religion and History
No full textThis article by Henry B. Nicholson explores the complex relationship between two key figures in Mesoamerican thought: Ehecatl-Quetzalcoatl, the wind deity, and Topiltzin Quetzalcoatl, the legendary ruler of Tollan. Through a thorough review of pictographic sources, colonial texts, and historical analysis, the author identifies interpretative challenges surrounding the conceptual merging or separation of these figures. The study provides valuable insights into the religious and ideological evolution of ancient Mexico, as well as the symbolic construction of power in theocratic contextsEste artículo, escrito por Henry B. Nicholson, examina la compleja relación entre dos figuras centrales del pensamiento mesoamericano: Ehécatl-Quetzalcóatl, deidad del viento, y Topiltzin Quetzalcóatl, gobernante legendario de Tollan. A través de una cuidadosa revisión de fuentes pictográficas, textos coloniales y análisis históricos, el autor identifica problemas de interpretación en torno a la fusión o separación conceptual de ambas entidades. El estudio aporta claves importantes para comprender la evolución religiosa e ideológica del México antiguo, así como la construcción simbólica del poder en contextos teocráticosInstituto de Investigaciones Históricas, Universidad Nacional Autónoma de Méxic
Crank-Nicholson difference scheme for the system of nonlinear parabolic equations observing epidemic models with general nonlinear incidence rate
No full textIn this work, we study second order Crank-Nicholson difference scheme (DS) for the approximate solution of problem (1). The existence and uniqueness of the theorem on a bounded solution of Crank-Nicholson DS uniformly with respect to time step τ is proved. In practice, theoretical results are presented on four systems of nonlinear parabolic equations to explain how it works on one and multidimensional problems. Numerical results are provided. © 2021 the Author(s), licensee AIMS Press
Course 26 A-B
No full textPictured:
Mackey C.H.N. - Major B.B. - Matthew P.R. - MacKrill J.B. - Marriott D.J. - Mellor V.G. - Nicholson J. - New J.E. - Nelson K.J. - Perkins G.A. - Page C.J. - Parker D.S.
Crooks R.P. - Jones L.E. - Knight B.J.S. - Kearney E.J. - Kelly G.J. - Llewellyn J.G. - Le Bosquet A. - Leslie G. - Lydford R.V. - Lightfoot R.W. - Loughlin R. - Lyon E.M.
Brindle A. - Beard C.F. - Bull W.H. - Bromwich B.R.M. - Barlow F. - Calderwood I.B. - Cooke A.S. - Culton J.G. - Cullimore D. - Clarke B. - Clarke R.V. - Crinage E.J.
Atkinson R.I. - Allder L.A. - Berger V.E. - Byrne J.S. - Barron K.J. - Blunden D.C. - Broadbent D.E. - Bayliss F.J. - Barbour J. - Bevis N.W.J. - Bird D.G. - Brown R.E.W.https://commons.erau.edu/bfts-clewiston-courses/1039/thumbnail.jp
RCMP Lethbridge Sub-Division
No full textPhotograph - An opening for a new public building for the Royal Canadian Mounted Police Sub-Division, Lethbridge, Alberta. Left to right: Assistant Commissioner Brunet, Commander Nicholson (from Ottawa), Mayor of Lethbridge, Premier E. Manning, Commander George B. McClellan and Inspector Isreal C. Shank, Lieutenant Governor Bowle
Structural studies of some compounds containing C2 fragments attached to various metal-ligand end-groups
No full textThe preparation, characterisation and single-crystal XRD molecular structure determinations of four complexes containing –CC–MLn end-groups, namely Ru{C≡CFc′(I)}(dppe)Cp (1), the vinylidene [Os(=C=CH2)(PPh3)2Cp]PF6 (2), trans-Pt(C≡CC6H4-4-C≡CPh){C≡CC6H4-4-C2Ph[Co2(μ-dppm)(CO)4]}(PPh3)2 (3), and C6H4{μ3-C2[AuRu3(CO)9(PPh3)]}2-1,4 (4) are reported. In these compounds a range of –CC– environments is found, extending from the σ-bonded alkynyl group in 1 to examples where the C2 unit interacts with either a proton (in vinylidene 2), by bridging a dicobalt carbonyl moiety (in 3) or the AuRu3 cluster in 4. Changes in geometry are rationalised by considering the various bonding modes.Michael I. Bruce, Maryka Gaudio, Benjamin C. Hall, Brian K. Nicholson, Gary J. Perkins, Brian W. Skelton and Allan H. Whit
Architectural authorship in generative design
No full textThe emergence of evolutionary digital design methods, relying on the creative generation of novel forms, has transformed the design process altogether and consequently the role of the architect. These methods are more than the means to aid and enhance the design process or to perfect the representation of finite architectural projects. The architectural design philosophy is gradually transcending to a hybrid of art, engineering, computer programming and biology. Within this framework, the emergence of designs relies on the architect- machine interaction and the authorship that each of the two shares.
This work aims to explore the changes within the
design process and to define the authorial control of a
new breed of architects- programmers and architects-users on architecture and its design representation. For the investigation of these problems, this thesis is to be based on an experiment conducted by the author in order to test the interaction of architects with different digital design methods and their authorial control over the final product. Eventually, the results will be compared and evaluated in relation to the theoretic views. Ultimately, the architect will establish his authorial role
Metabolic profiling and population screening of analgesic usage in nuclear magnetic resonance spectroscopy-based large-scale epidemiologic studies
No full textThe application of a 1H nuclear magnetic resonance (NMR) spectroscopy-based screening method for determining the use of two widely available analgesics (acetaminophen and ibuprofen) in epidemiologic studies has been investigated. We used samples and data from the cross-sectional INTERMAP Study involving participants from Japan (n = 1145), China (n = 839), U.K. (n = 501), and the U.S. (n = 2195). An orthogonal projection to latent structures discriminant analysis (OPLS-DA) algorithm with an incorporated Monte Carlo resampling function was applied to the NMR data set to determine which spectra contained analgesic metabolites. OPLS-DA preprocessing parameters (normalization, bin width, scaling, and input parameters) were assessed systematically to identify an optimal acetaminophen prediction model. Subsets of INTERMAP spectra were examined to verify and validate the presence/absence of acetaminophen/ibuprofen based on known chemical shift and coupling patterns. The optimized and validated acetaminophen model correctly predicted 98.2%, and the ibuprofen model correctly predicted 99.0% of the urine specimens containing these drug metabolites. The acetaminophen and ibuprofen models were subsequently used to predict the presence/absence of these drug metabolites for the remaining INTERMAP specimens. The acetaminophen model identified 415 out of 8436 spectra as containing acetaminophen metabolite signals while the ibuprofen model identified 245 out of 8604 spectra as containing ibuprofen metabolite signals from the global data set after excluding samples used to construct the prediction models. The NMR-based metabolic screening strategy provides a new objective approach for evaluation of self-reported medication data and is extendable to other aspects of population xenometabolome profiling
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