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Drawing on previously inaccessible and overlooked archival sources, The Herero Genocide undertakes a groundbreaking investigation into the war between colonizer and colonized in what was formerly German South-West Africa and is today the nation of Namibia. In addition to its eye-opening depictions of the starvation, disease, mass captivity, and other atrocities suffered by the Herero, it reaches surprising conclusions about the nature of imperial dominion, showing how the colonial state s genocidal posture arose from its own inherent weakness and military failures. The result is an indispensable account of a genocide that has been neglected for too long.
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Hyperbranched polymers have emerged as a new class of macromolecules that show architectural beauty and multifaceted functionality of d- drimers while enjoying the ease of being prepared by simple, sing- step reaction procedures. A number of strategies have been developed for the synthesis of hyperbranched polymers. The commonly adopted - proach is self-condensation polymerization of AB -type monomers with x x?2 where A and B are mutually reactive functional groups, dating back to the theoretical work of Flory in the early 1950s [1]. Because of the limited commercial availability and dif?cult synthetic access to multifu- tional monomers bearing multiple, mutually reactive groups, alternative approaches suchas copolymerizations ofA monomers with B comonomers 2 x (x?3) have been developed [2-7]. Other polymerization reactions including self-condensing vinyl polymerizations initiated by cationic [8] and radical catalysts [9,10] and ring-opening multibranching polymerizations [11-15] have been explored, mainly for the synthesis of non-conjugated hyp- branched polymers [16-18]. Hyperbranched macromolecules have been constructed from various functional groups, among which, carbon-carbon triple-bond functionality uniquely stands out because it offers ready access to hyperbranched conju- tive macromolecules. Being unsaturated, it accommodates various addition reactions. In comparison to vinyl and alkyl protons, the acetylenic proton is most acidic (pK = 26; cf. , pK =45forethyleneandpK = 62 for ethane), a a a thus enabling facile substitution and coupling reactions.
Macromolecules --- General biochemistry --- Pharmacology. Therapy --- Clinical chemistry --- klinische chemie --- medische chemie --- farmacologie --- biochemie --- polymeren --- moleculaire biologie --- fysicochemie
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