Traditional Coping Mechanism and Environmental Sustainability Strategies in Nnewi, Nigeria
Nnewi is situated some 30 kilometres South East of Onitsha in Anambra State in the southeastern part of Nigeria. This highly commercial town has undergone rapid urbanisation and industrialisation within the past two decades, since the end of the 1967–1970 Nigerian civil war. The Igbo community of the study area had traditionally employed bioconversion methods and other indigenous technology to process or recycle bio and non-degradable wastes. Industrialisation has enjoyed priority status in this locality as a requirement for modernisation and economic progress. The rapid urbanisation, aggressive industrialisation, and the attendant uncontrolled population growth have had a deleterious impact on the environment. There is now a wide range of industrial wastes that are released daily into the environment. Effects of these activities on the socio-cultural practices of the people, plant genetic resources and the environment are highlighted. In addition to palliative measures suggested here, a call is made to revisit the successful indigenous waste treatment and management technology formerly practised by the Igbo community. The importance of combining modern biotechnological approaches with the indigenous technology, norms and practices of Nwewi people to effect suitable waste treatment and management, as well as improving the living habits and the education of the people about their environment, is recommended.
Cultivation studies on wild and hybrid strains of Pleurotus tuberregium (Fr.) Sing. on wheat straw substrate
Wild of strains Pleurotus tuberregium from Nigeria and the Australasian-Pacific regions and selected hybrids were studied to determine their growth and sclerotia production capacity on wheat straw substrate. Although the Australasian-Pacific strains showed faster growth rates, the wild strains from Nigeria performed better than the Australasian-Pacific strains in sclerotia yield. Under similar conditions, some hybrids had sclerotial yields that were higher than any wild strain. Our study showed the possibilities of using selected strains and the low cost methods adopted in this experiment, for the cultivation of sclerotia of P. tuberregium.
Seeing Like a Racial State: the Census and the Politics of Race in the United States, Great Britain and Canada
ii Acknowledgements iv List of Abbreviations vii List of Tables ix List of Appendices x Chapter 1 Invitation 1 Chapter 2 Orientation 26 Chapter 3 Mark One or More: Census Politics in the United States 61 Chapter 4 The Ethnic Question: Census Politics in Great Britain 115 Chapter 5 (In)Visible Minorities: Census Politics in Canada 168 Chapter 6 Seeing Like a Racial State 234 Chapter 7 Alternatives and Outcomes in the Census Policy Sphere 310 Chapter 8 Conclusions 364 Reference List 382