Carbon and nitrogen cycles in grassland, annual cropping and integrated crop-livestock (ICL) systems control soil quality and regulate greenhouse gas emissions. The aim of this study was to review the knowledge on driving factors controlling soil organic carbon (OC) accumulation…

The knowledge of field management zones based on soil attributes can be helpful for the implementation of site-specific management. This work had the objective of analyzing the spatial dependence of soil attributes of the 0-0.20 m and 0.20-0.40 m layers…

2008

This inquiry sought to examine the effects of participating in an online discussion forum on the development of knowledge for teaching mathematics. The participants of this study were among the pre-service teachers from a large urban university, chosen as they…

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In wireless communications, the broadcast nature can be explored to efficiently support multicast services while the difference in channel gains among the wireless links of users promotes multiuser diversity which can be used to improve multicast performance. This thesis proposes…

This paper investigates and analyses the process of building a knowledge management (KM) model at Brazil‟s Embrapa (The Brazilian Agricultural Research Corporation). Embrapa is a world class knowledge organization whose mission is to provide feasible solutions for the sustainable development…

This work examines the patterns inherent to the understanding of the nature of the forbidden fruit in an attempt to demonstrate parallels between the reasoning of biblical interpreters, on one hand, and of artists, on the other., While the biblical…

It has been proposed that forms of dialogue (Keegan, 1993) are differentially related to subject knowledge possessed by the student and the roles that teachers and students play within those dialogues. A reading of the socio-constructivist literature suggests that maximal…

This thesis proposes a knowledge based expert system tool that can be used as an on- line controller for the charging/discharging of an energy storage system in a wind-diesel microgrid. The wind-diesel microgrid is modelled, and a typical energy storage…