693 research outputs found

    Coaltion Operations: A Canadian Perspective

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    The Time of Indifference: Mandelstam's Age, Badiou's Event, and Agamben's Contemporary

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    There has been little direct discussion between perhaps the two leading philosophers of our age: Alain Badiou and Giorgio Agamben. Yet both men have written about the same poem by Osip Mandelstam, ‘The Age’, around the topic of time. Significantly, Agamben’s response, written after Badiou’s, is a subtle and damning critique of Badiou’s conceptualisation of time, in particular extended across the categories of the modern, the contemporary, and the now or the event – although it never actually mentions Badiou by name. In this paper the lens of the central role of indifference in the work of both is used to present alternating and competing views as to the nature of modern, contemporary, and ‘now’ time. Specifically, a contrast is drawn between Badiou’s use of indifference as both quality-neutral and absolutely non-relational, and Agamben’s application of the indifferent suspension of the temporal signature as such. The paper concludes that while Badiou uses temporal indifference to question and problematise the idea of modern time as ‘now’, through a theory of the event, Agamben appears to go further. Rather than analyse the nature of modern time, the contemporary, and the now through his reading of Mandelstam, Agamben usesMandelstam’s poem to suspend theWestern conception of time as a line composed of points in its entirety

    α-d-Tagatopyran­ose

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    The title compound, C6H12O6, also known as d-Tagatose, occurs in its furanose and pyranose forms in solution, but only the α-pyran­ose form crystallizes out. In the crystal, the molecules form hydrogen bonded chains propagating in [100] linked by O—H⋯O interactions. Further O—H⋯O bonds cross-link the chains

    (S)-3-Dimethyl­amino-2-{(4S,5R)-5-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolan-4-yl}-2-hydroxy­propanoic acid

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    The Kiliani reaction on 1-de­oxy-(N,N-dimethyl­amino)-d-fructose, itself readily available from reaction of dimethyl­amine and d-glucose, proceeded to give access to the title β-sugar amino acid, C15H27NO7. X-ray crystallography determined the stereochemistry at the newly formed chiral center. There are two mol­ecules in the asymmetric unit; they are related by a pseudo-twofold rotation axis and have very similar geometries, differing only in the conformation of one of the acetonide rings. All the acetonide rings adopt envelope conformations; the flap atom is oxygen in three of the rings, but carbon in one of them. There are two strong hydrogen bonds between the two independent mol­ecules, and further weak hydrogen bonds link the mol­ecules to form infinite chains running parallel to the a axis

    3-O-Benzhydryl-2,5-dide­oxy-2,5-imino-2-C-methyl-l-lyxono-1,4-lactone

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    The title bicyclic lactone, C19H19NO3, is an inter­mediate in the synthesis of chiral α-methyl­prolines and branched C-methyl pyrrolidines; the absolute configuration was determined by the use of d-erythronolactone as the starting material. It exhibits no unusual crystal packing features, and each mol­ecule acts as a donor and acceptor for one C—H⋯O hydrogen bond

    2-De­oxy-2,3-O-isopropyl­idene-2,4-di-C-methyl-β-l-arabinose

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    X-ray crystallography unequivocally confirmed the stereochemistry of the C atom at position 2 in the carbon scaffold of the title mol­ecule, C10H18O4. The pyran­ose ring exists in a chair conformation with the methyl group on the C atom in the 2 position in an equatorial configuration. The absolute stereochemistry was determined from the starting material. The crystal structure consists of O—H⋯O hydrogen-bonded chains of mol­ecules running parallel to the b axis

    2,3-O-(S)-Benzyl­idene-2-C-methyl-d-ribono-1,4-lactone

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    The crystal structure of the title compound, C13H14O5, establishes (i) the (S) – rather than (R) – configuration at the acetal carbon and (ii) that both the acetal and the lactone form five- rather than six-membered rings; the absolute configuration is determined by the use of 2-C-methyl-d-ribono-1,4-lactone as the starting material. The compound consists of hydrogen-bonded chains of mol­ecules running along the a axis; there are no unusual packing features. Only classical hydrogen bonding has been considered
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