The intestinal helminth parasites of the impala from the Kruger National Park, South Africa, were examined to describe the parasite community structure. Demographic variation and the associated differences in behavior were used to further investigate the patterns of community composition. Monte Carlo simulations were performed to test for differences in species richness and mean abundance betwe...

Studies covering all aspects of bovine viral diarrhoea virus (BVDV) have been conducted in several countries in Europe, Asia and America. In southern Africa, more information is required about the nature of BVDV infection, the prevalence of different strains and the economic importance of the disease. The presence of BVDV in southern Africa has been known since the early 1970s through serologic...

Loudness judgments play an important role in the selection and fitting of the electroacoustic characteristics of hearing aids such as the maximum output or the compression ratio (Fabry and Schum 1994). To aid in this process, subjective judgments of loudness are often obtained to define regions of comfort or discomfort (i.e., most comfortable loudness level [MCL]; loudness discomfort level [LDL...

During 1980 a survey of the parasites of freshwater fish was conducted in the Sabie and Crocodile Rivers in the southern part of the Kruger National Park, Transvaal. A new species of Phyllodistomum, Braun, 1899, for which the name Phyllodistomum bavuri is proposed, was found in the urinary bladder of many of the catfish, Clarias gariepinus (Burchell, 1822), examined. The new species resembles P...

Effective vaccination in sub-Saharan Africa requires the use of custom-made vaccines for specific geographic localities, due to the genetic and antigenic variability of the SAT types of FMDV. Comparison of r-values (expression of antigenic relationships between viruses) determined for ZIMJ7/8312 (a west Zimbabwean strain) and KNP/19/89/2 (originating from the Kruger National Park, South Africa)...

This paper describes a system for detecting and estimating the properties of multiple travel lanes in an urban road network from calibrated video imagery and laser range data acquired by a moving vehicle. The system operates in real-time in several stages on multiple processors, fusing detected road markings, obstacles, and curbs into a stable non-parametric estimate of nearby travel lanes. The...

We present the motion planning framework for an autonomous vehicle navigating through urban environments. Such environments present a number of motion planning challenges, including ultrareliability, high-speed operation, complex intervehicle interaction, parking in large unstructured lots, and constrained maneuvers. Our approach combines a model-predictive trajectory generation algorithm for c...