Developing access control extensions for operating systems is an expensive and time-consuming task. Mechanisms available for access control extension lag behind industry standard extension solutions for file systems, process schedulers, and device drivers, and suffer from a number of serious flaws in modern multi-processor, multi-threaded kernels. In this paper, we explore the limitations of cu...

agriculture is an important engine of growth and poverty reduction in much of africa, nigeria inclusive. but the sector is underperforming in part because women, who are often crucial resource in agriculture and rural economy, face constraints that reduce their productivity. an understanding of these constraints is a prerequisite to devising policies to improve agricultural production and produ...

Land degradation is a serious impediment to improving rural livelihoods in Eastern Africa. This paper identifies major land degradation patterns and causes, and analyzes the determinants of sustainable land management (SLM) in three countries (Ethiopia, Malawi and Tanzania). The results show that land degradation hotspots cover about 51%, 41%, 23% and 23% of the terrestrial areas in Tanzania, M...

®) was established in 1975 to identify and analyze alternative national and international strategies and policies for meeting food needs of the developing world on a sustainable basis, with particular emphasis on low-income countries and on the poorer groups in those countries. While the research effort is geared to the precise objective of contributing to the reduction of hunger and malnutriti...

the cyclical economic downturn in the united states has forced many extension administrators to rethink and adjust services and programming. the cooperative extension system (ces), the organization primarily responsible for governmental extension work in the united states, at iowa state university responded to this economic downturn by restructuring its organization from county based to a regio...