literary canon poetry twentieth-century Accusative case Aging Anna Akhmatova Archaeology Communities of Practice Community in the Technosciences Community of practice Contemporary Technosciences Cultural Theory Cultural studies D1-2009 Demographic transition Depression Determinants of fertility Developing world Emergence of Technoscience Engineering Laboratory Communities Epistemic Cultures Family planning programs Fertility decline Fertility policies Fertility preferences Fertility transition Fertility trends Funding Regimes Governance and Government Health Management