8,418 research outputs found
Diesis
No full textThis work is an exploration of microtonal commas (a minute interval) of which a diesis, a diminished second, gives this piece its title. Historically when tuning a scale, rather than divide an octave into equal parts (as used today with equal temperament) early tuning systems would tune notes using a sequence of pure intervals, which are slightly different in size to the equal tempered intervals we use today. These discreet differences in pitch would result with an undesirable and perceptually dissonant imperfect octave, the interval of this imperfection being a comma. Diesis is therefore a response to the dissonant qualities that made a comma undesirable: namely its complex timbre and pulsing beating tones (which result when two notes very close in pitch are played together)
Not losing the plot: Ken MacLeod and Iain M. Banks.
No full textThis essay appears in the first book to be devoted to the work of Ken MacLeod. It compares the science fiction of MacLeod and Iain M. Banks, who are both deemed to write political novels, yet produce very different results, to judge by Banks's Culture novels and MacLeod's Fall Revolution Quartet. The essay establishes the terms of its comparison by examining the theories of Hobbes and Arendt regarding the possibility of political action - a possibility more evident in MacLeod than in Banks. MacLeod's novels are shown to test the possibilities of action and political agency
Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana
No full textMacLeod A, Rodríguez A, Vences M, et al. Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana. Proceedings of the Royal Society B: Biological Sciences. 2015;282(1809): 20150425
George MacLeod’s open-air preaching: performance and counter-performance
No full textStuart Blythe uses the methodology of performance to analyse George MacLeod’s open-air preaching. He points out that MacLeod’s preaching was derived from a theology of the incarnation, and an understanding of the paradoxes and dichotomies of common human life. This preaching, Blythe suggests, was also a counter-performance in the context of outlooks and ideologies inimical to the gospel. The paper raises interesting issues related to preaching as performance, and the further question as to whether or not the life and work of the Church as a whole might now be better understood as a counter-performance.Publisher PD
MacLeod, Colin M.
No full textColin MacLeod, circa 1940s
Colin Munro MacLeod (1909 – 1972) was a Canadian-American geneticist. He was one of a trio of scientists who discovered that deoxyribonucleic acid or DNA is responsible for the transformation of the physical characteristics of bacteria, which subsequently led to its identification as the molecule responsible for heredity.
Colin MacLeod earned his MD from McGill University (1934). The next year he joined Oswald Avery\u27s laboratory at the Rockefeller Institute. In 1941 MacLeod became chairman of the Department of Microbiology at the New York University School of Medicine.
See also DNA: The Transforming Principle and the Birth of Modern Genetics and The First Effective Vaccine for Pneumococcal Pneumoniahttps://digitalcommons.rockefeller.edu/scientific-staff/1012/thumbnail.jp
Surface structure of Pd(111) with less than half a monolayer of Zn
No full textWe have characterized the structural properties of submonolayer amounts of Zn on Pd(111) using
scanning tunneling microscopy (STM) and spot-profile analysis low energy electron diffraction (SPA-LEED).
Following room temperature deposition of E0.06 monolayers (ML) Zn onto Pd(111), we observe the
substitution of Zn for Pd in the surface layer. At E0.20 ML of deposited Zn, STM reveals a locally ordered
phase with a 2/sqrt3x2/sqrt3R30deg unit cell located near Zn substitutions; SPA-LEED patterns reveal the
same periodicity. We attribute this phase to the metastable bonding of atoms or clusters predominantly
in hollow sites surrounding Zn substitutions in the surface layer. At Therta=0.4 ML, STM images reveal local 2/sqrt3x2/sqrt3R30deg and (2x1) ordering on surfaces annealed to 350 K. At coverages near 0.5 ML, both STM and SPA-LEED show the onset of the formation of the (2x1) ordering associated with the Zn: Pd 1 : 1
alloy phase. At all coverages, the surface is dominated by island growth; the islands’ size and density is
shown to depend critically on annealing at temperatures as low as 350 K. These results provide insight
into the structural features of a Zn/Pd(111) coverage regime that has been much debated in recent years
The Effect of the Class Period Length and Frequency on Student Achievement in College Biology Laboratories
No full textA Paper Presented to the Faculty of the Graduate School, University of Minnesota, A Requirement for the Degree Master of Arts (Plan B), by Charlotte M. MacLeod, August 18, 1967.MacLeod, Charlotte M. (1967). The Effect of the Class Period Length and Frequency on Student Achievement in College Biology Laboratories. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/229723
Pigeon Pneumonitis, Correspondence -- 1952-61 -- Other Diseases Researched, Miscellaneous -- letter, 1960-11-28
No full textLetter from MacLeod, W. M. to Sabin, Albert B. dated 1960-11-28.Sabin Collection Fair Use Policy</a
Pigeon Pneumonitis, Correspondence -- 1952-61 -- Other Diseases Researched, Miscellaneous -- letter, 1961-02-24
No full textLetter from MacLeod, W. M. to Sabin, Albert B. dated 1961-02-24.Sabin Collection Fair Use Policy</a
76. Lucian, A Selection, edited with an Introduction, Translation and Commentary by M. D. MacLeod
No full textCauderlier Patrice. 76. Lucian, A Selection, edited with an Introduction, Translation and Commentary by M. D. MacLeod. In: Revue des Études Grecques, tome 104, fascicule 497-499, Juillet-décembre 1991. pp. 662-663
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