134,604 research outputs found
δ Orionis: Further temporal variability and evidence for small-scale structure in the interstellar medium
No full textWe report here the detection of both spatial and temporal variations in interstellar absorption in the line of sight to δ Orionis. First, we present new high-resolution (R≈110 000) observations of the interstellar D lines of Na i towards both δ Ori A and C. Comparison of these spectra highlights variations in absorption between the two stars, indicative of small-scale spatial structure in the interstellar medium in this direction over distances of less than ≈15 000 au (the projected separation of the two stars). Components with the largest Na i column densities and lowest velocity dispersions are, in general, found to be subject to the greatest differences; in fact the narrowest component detected is only observed in one of the sightlines. This effect has also been reported by Meyer & Blades. Secondly, we present new ultra-high-resolution (R≈900 000) Na i D1 observations and high-resolution (R≈110 000) Ca ii H & K observations of δ Ori A which, through ultra-high-resolution work conducted between 1994 and 2000, has been shown to exhibit a time-variable interstellar Na i absorption component. These new observations, while revealing the further reduction in intensity of the time-variable Na i absorption, indicate constant Ca ii absorption over the same period. This results in a dramatic reduction in the Na°/Ca+ abundance ratio, perhaps indicating the line of sight to be gradually probing a less-dense outer region of an absorbing filament
Howarth Collection: Mackintosh, London Phase
No full textClock Face, for W.J. Bassett Lowke; Derngate, Northampton, England; Pencil and Watercolor; (1916); Graphic and commercial design including textile design and book covers. Part of the Dr. Thomas Howarth collection, sold at Christies, Feb. 17, 1994. "Thomas Howarth, professor, architectural historian, collector (b in England 1914, d at Toronto 21 July 2000). Howarth reawakened interest in the great Scottish architect, Charles Rennie Mackintosh (1868-1928), through articles, a comprehensive monograph, exhibitions, and lifelong advocacy and collecting. A prescient collector of Mackintosh's work, Howarth amassed a huge and varied collection." Source: Canadian Encyclopedia; http://www.thecanadianencyclopedia.com/ (accessed 2/14/2008
Howarth Collection: Mackintosh Furniture Drawings
No full textOrder Desk Chair, Miss Cranston's, Sauchiehall Street, Pencil and wash working drawing; Inscr. upper right Miss Cranston's Sauchiehall Street, drawing of chair at order desk, 1 wanted; Part of the Dr. Thomas Howarth collection, sold at Christies, Feb. 17, 1994. "Thomas Howarth, professor, architectural historian, collector (b in England 1914, d at Toronto 21 July 2000). Howarth reawakened interest in the great Scottish architect, Charles Rennie Mackintosh (1868-1928), through articles, a comprehensive monograph, exhibitions, and lifelong advocacy and collecting. A prescient collector of Mackintosh's work, Howarth amassed a huge and varied collection." Source: Canadian Encyclopedia; http://www.thecanadianencyclopedia.com/ (accessed 2/14/2008
Howarth Collection: Mackintosh Graphic Work
No full textMacdonald (Mackintosh), Margaret: Repousse White Metal Plaque; 20 x 6"; (1893); Part of the Dr. Thomas Howarth collection, sold at Christies, Feb. 17, 1994. "Thomas Howarth, professor, architectural historian, collector (b in England 1914, d at Toronto 21 July 2000). Howarth reawakened interest in the great Scottish architect, Charles Rennie Mackintosh (1868-1928), through articles, a comprehensive monograph, exhibitions, and lifelong advocacy and collecting. A prescient collector of Mackintosh's work, Howarth amassed a huge and varied collection." Source: Canadian Encyclopedia; http://www.thecanadianencyclopedia.com/ (accessed 2/14/2008
Howarth Collection: Mackintosh Sketches in England
No full textFragments from Lincluden Abbey, Dumfries, 1892; Pencil, 10 1/4 x 7 1/2" (sight); S. & d. at lower right, C.R.M. September 1892; Inscr., Fragments From / Lincluden Abbey / Dumfries; Part of the Dr. Thomas Howarth collection, sold at Christies, Feb. 17, 1994. "Thomas Howarth, professor, architectural historian, collector (b in England 1914, d at Toronto 21 July 2000). Howarth reawakened interest in the great Scottish architect, Charles Rennie Mackintosh (1868-1928), through articles, a comprehensive monograph, exhibitions, and lifelong advocacy and collecting. A prescient collector of Mackintosh's work, Howarth amassed a huge and varied collection." Source: Canadian Encyclopedia; http://www.thecanadianencyclopedia.com/ (accessed 2/14/2008
Howarth Collection: Mackintosh Sketches in Italy
No full textCampanile Martorama, Palermo 1891; Pencil and watercolor, 12 1/2 x 7" (sight); S. & d. lower right, C.M. Palermo, 1891, and Inscr. lower right, Campanile / Martorama; Part of the Dr. Thomas Howarth collection, sold at Christies, Feb. 17, 1994. "Thomas Howarth, professor, architectural historian, collector (b in England 1914, d at Toronto 21 July 2000). Howarth reawakened interest in the great Scottish architect, Charles Rennie Mackintosh (1868-1928), through articles, a comprehensive monograph, exhibitions, and lifelong advocacy and collecting. A prescient collector of Mackintosh's work, Howarth amassed a huge and varied collection." Source: Canadian Encyclopedia; http://www.thecanadianencyclopedia.com/ (accessed 2/14/2008
Ernesto Laclau: Post-Marxism, Populism, and Critique
No full textErnesto Laclau has blazed a unique trail in political theory and philosophy since the early 1970s. In so doing, he has articulated a range of philosophical and theoretical currents into a coherent alternative to mainstream models and practices of conducting social and political science. The editors have focused on work in three key areas: Post-Marxist Political Theory: Discourse, Hegemony, Signification Laclau has developed an original conception of post-Marxist political theory that is grounded on a materialist theory of discourse. The latter is constructed from a range of theoretical and philosophical sources, including poststructuralism, psychoanalysis, linguistic theory and post-analytical philosophy. The centerpiece of this approach is the category of hegemony, which develops Antonio Gramsci?s seminal contribution to Marxist theory, and is in turn connected to a web of related concepts, including articulation, dislocation, the logics of equivalence and difference, political identification, myth and social imaginary. These ideas have informed a number of empirical and theoretical studies associated with the Essex School of Discourse Theory. Analyzing Populism A central concern of Laclau?s writings has been the question of populism, both in Latin America where hebegan his interrogation of the phenomenon (especially the experience of Peronism), and then in his engagement with the "new social movements" and socialist strategy more generally. The concept of populism becomes a general way of exploring the "primacy of politics" in society. Critical Engagements Laclau is first and foremost an engaged intellectual who has consistently sought to theorize contemporary events and reality, and to debate with the leading intellectual figures of the day, with respect to questions of political principle and strategy. His recent debates with Judith Butler and Slavoj ?i?ek in Contingency, Hegemony, Universality: Contemporary Dialogues on the Left, published in 2011 (London: Verso), exemplify this critical ethos. He continues to elaborate his approach by challenging and articulating related approaches, and by situating his work in connection to the democratic Left
Paradigms gained? A critique of theories and explanations of democratic transition in South Africa
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