This paper presents a scalable digital learning system that can store and provide Web access to digital contents from voluntaries, teachers, and institutions that lack resources or expertise to offer classes over the Internet. We use the server-cluster architecture as a way to create scalable and highly available solutions. However, hosting a variety of contents from different owners on such a ...

This paper presents a synthesis of the main theoretical and empirical contributions that analyse production choices of farm households living and operating in developing countries. The review is particularly concerned with recent micro-economic contributions that highlight the trade-off farm households typically face, between full-income risk and expected return, while making production decisio...

A simple dynamic farm model is developed and used to analyse the net worth of a family farm grazing enterprise producing wool on the Northern Tablelands of New South Wales, Australia, under alternative assumptions regarding family expenses and investments in fertilizer. The linkage between family costs and expenditure on fertilizer is explored over a 25-year period highlighting the feed-back e€...