Missional theology and social development

The article describes a theological paradigm shift taking place in congregations in South Africa that empower them to become  involved in development work as a way of serving their neighbor. It also opens the possibility of working interdisciplinary without compromising theological and faith values. The perspectives and assumptions of the new paradigm are outlined and the basic  methodology of doing theology is described. The new paradigm is a missional one, taking the focus on God as its point of    departure and describing the identity and purpose of the church by looking at God’s identity and plan or mission with creation and humankind. Social development is seen as being in line with God’s mission and as such the church should not have difficulty in working with those who pursue the same goals

Contextualising theological education in Africa by doing theology in a missional hermeneutic

This article originated at curriculum development workshops for seminaries at different venues in sub-Saharan Africa. Its goal was to provide guidelines towards finding a hermeneutic key to practising theology contextually as a response to a process of spiritual discernment which would lead to a contextualised, missional theological curriculum and training. It briefly described elements of the history and context of theological training in the Christendom paradigm. It has little faith in the future of this paradigm, and argued that the southern shift of the heartland of Christianity points us in a new direction. The article said: look at the changing context, the influence of globalisation and the information revolution and revisit key theological parameters in Scripture. Observe what is happening in missional congregations and let all of these developments guide us on a journey to discover a new hermeneutic to do and teach theology in Africa

Planetary benchmarks

Design criteria and technology requirements for a system of radar reference devices to be fixed to the surfaces of the inner planets are discussed. Offshoot applications include the use of radar corner reflectors as landing beacons on the planetary surfaces and some deep space applications that may yield a greatly enhanced knowledge of the gravitational and electromagnetic structure of the solar system. Passive retroreflectors with dimensions of about 4 meters and weighing about 10 kg are feasible for use with orbiting radar at Venus and Mars. Earth-based observation of passive reflectors, however, would require very large and complex structures to be delivered to the surfaces. For Earth-based measurements, surface transponders offer a distinct advantage in accuracy over passive reflectors. A conceptual design for a high temperature transponder is presented. The design appears feasible for the Venus surface using existing electronics and power components

Preliminary comparison of 3.5-cm and 12.6-cm wavelength continuous wave observations of Mars

Radar observations of Mars at Goldstone in 1990 were conducted by transmitting pure sinusoidal signals at 3.5-cm wavelengths and receiving the Doppler-spread echoes from Mars at Earth. Radar transmissions were circularly polarized and the echoes recorded in two senses: depolarized and polarized. Latitudes of the subradar points are between 3.5 deg and 11.1 deg S; longitude coverage is discontinuous. The observed depolarized and polarized echo total cross-sections and their ratios for two wavelengths were compared and discussed

Theory of the microfluidic channel angular accelerometer for inertial measurement applications

Please read the abstract in the front pages of the file named 00dissertationDissertation (MEng (Mechanical))--University of Pretoria, 2007.Mechanical and Aeronautical Engineeringunrestricte

Comparison of Inedible Egg Product and Spray-Dried Plasma as Sources of Protein for Weanling Pigs

Pigs were weaned at approximately 18 days of age and fed diets containing inedible egg product, spray-dried plasma (SDP), or the combination of both for 2 weeks postweaning. They then received a common diet for an additional 2 weeks after the treatment period. The impact of these dietary ingredients on growth performance was evaluated. Inedible egg product did not improve growth or feed efficiency of pigs compared with those fed the control diet during the 2-week treatment period. However, SDP increased body weight gain and feed efficiency during the treatment period. The improved performance over the control group that resulted from feeding a combination of SDP and egg product was primarily dependent upon the SDP. In the third week, a trend occurred for improved performance of pigs fed the egg product compared with those fed 4% SDP; however, the difference was not significant. During this same period, pigs previously fed SDP gained weight slower and consumed less feed than those that had not been fed SDP. Therefore, the response to SDP was partially lost when it was removed from the diet. In summary, the outcome of this study demonstrated that inedible egg product was an adequate source of protein for the weanling pig but did not provide measurable improvements over the control diet. Inedible egg product did not have an additive effect when combined with SDP. The improved feed efficiency associated with SDP resulted in increased weanling pig growth