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Presents a comprehensive account of established protecting-group-free synthetic routes to molecules of medium to high complexity This book supports synthetic chemists in the design of strategies, which avoid or minimize the use of protecting groups so as to come closer to achieving an “ideal synthesis” and back the global need of practicing green chemistry. The only resource of its kind to focus entirely on protecting-group-free synthesis, it is edited by a leading practitioner in the field, and features enlightening contributions by top experts and researchers from across the globe. The introductory chapter includes a concise review of historical developments, and discusses the concepts...
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A collection of Douglass Taber's columns originally published between 2013 - 2015 at www.organicchemistry.org
John Nation (ca. 1694/1695-ca. 1774) immigrated (as a bondsman) from England to New Jersey during or before 1711, and settled in Frederick County, Virginia thereafter. In 1754 he moved to Rowan (later Guilford) County, North Carolina. Descendants and relatives lived in Virginia, North Carolina, Tennessee, Kentucky, Pennsylvania, Ohio, Indiana, Iowa, Missouri, California and elsewhere.
How is the slave trade remembered in West Africa? In a work that challenges recurring claims that Africans felt (and still feel) no sense of moral responsibility concerning the sale of slaves, Rosalind Shaw traces memories of the slave trade in Temne-speaking communities in Sierra Leone. While the slave-trading past is rarely remembered in explicit verbal accounts, it is often made vividly present in such forms as rogue spirits, ritual specialists' visions, and the imagery of divination techniques. Drawing on extensive fieldwork and archival research, Shaw argues that memories of the slave trade have shaped (and been reshaped by) experiences of colonialism, postcolonialism, and the country's ten-year rebel war. Thus money and commodities, for instance, are often linked to an invisible city of witches whose affluence was built on the theft of human lives. These ritual and visionary memories make hitherto invisible realities manifest, forming a prism through which past and present mutually configure each other.
Este livro, que levou vinte e sete anos de pesquisas genealógicas, será de grande relevância, uma vez que vai documentar e registrar a genealogia de grandes famílias de quase todo o Centro-Oeste Mineiro, e ainda, narrar um pouco de sua história, de sua etnia e de sua cultura. Seu público alvo será, além, de seus próprios descendentes, também de futuros pesquisadores de seus próprios ramos genealógicos e estudiosos sobre o assunto. Sobretudo, será de grande importância para a História de Minas e do Brasil, na medida em que essas famílias deram ao nosso país elementos de realce na vida pública, artística, cultural, etc. Durante todos estes longos anos de pesquisas, que dediquei e dedico as Famílias Rabelo, Vasconcelos, Gonçalves da Costa e outras, sejam através de batistérios paroquiais, arquivos públicos, prefeituras e cartórios, tomando depoimento de várias pessoas, principalmente dos mais velhos, cujas memórias remontam a um passado mais distante, dando-me incentivo e informações importantes para a construção desta obra.