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Understanding farmer perceptions of soil fertility is necessary for the development of appropriate assessment methods for sustainable agro‐ecosystems. This study investigated farmer perceptions of soil fertility and management in four villages of eastern South Africa. A questionnaire was administered to 50 farmers from each village to obtain a general overview of local soil knowledge as well as soil...
Ethnopedology has significantly contributed to understanding local perceptions of soil, and its uses and management, and has complemented technical (scientific) surveys. This study focused on indigenous soil classification of the Zulu and Xhosa ethnic groups of eastern South Africa. The study area comprised four villages, viz Khokhwane (104 ha) and Potshini (577 ha) in KwaZulu-Natal Province and Ntshiqo...
The performance of parallel simulations of large agent-based models (ABMs) distributed across multiple CPUs is strongly dependent on the distribution of the agents among the processors. In this paper, we introduce an algorithm that uses community structure to distribute the agents among processors, thereby reducing the communication overhead. In particular, we compare three distribution schemes (initial-LPA,...
This paper discusses the relationship between laparoscopic surgery and video game experience. It reviews two key studies indicating video game players may possess psychomotor skills that are useful for learning laparoscopic surgery techniques. The contribution of this work lies in the review of the software design process used to create an updated series of tests designed to evaluate psychomotor skills...
Virtual reality simulators have emerged as valuable tools for standardized and objective robotic surgery skill training and assessments. In recent years the idea of using video game technology in surgical education for laparoscopy has also been explored, however few have attempted to make a connection between video game experience and robotic surgical skills. Thus, the current study aims to examine...
Assessment of virtual rehabilitation designs is typically guided by human-computer interaction methods such as usability. Although interaction and usability are important evaluative metrics, these measures may not provide enough information as to the efficacy of the rehabilitation component of these scenarios. Of importance are the individual differences that may affect outcome measures for single...
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