Die aard van wetgewende diskresies by die Suid-Afrikaanse uitvoerende gesag

This article focuses on the nature of legislative discretions in the hands of the executive authority of the state.Relevant concepts are analysed, followed by an exposition of the position regarding delegation of legislative authority to the executive under the previous constitutional dispensation when the country had a sovereign Parliament. This is followed by a discussion of the legal position in Germany, which shows similarities to the situation in South Africa. It appears that differences in approach to the problem exist worldwide, but one similarity is to be found in all, namely that a complete parliamentary abdication of legislative authority is always disallowed. What follows from this is that South African law seems to follow the German example regarding the delegation of legislative powers. It seems that the South African Constitutional Court considers the delegation of essential legislative authority as undesirable. Limits have to be placed on the extent of Parliament's competencies pertaining to legislative delegation. Furthermore the manner and form requirements in the Constitution must be met when legislation is adopted. This however does not occur in all instances of legislative delegation to the executive authority. When legislative delegation takes place, it is consistently done by granting the executive the authority to adopt subordinate legislation, which in any event has the same legal effect as legislation of Parliament itself.Next the Transitional Constitution of 1993 is considered against the background of relevant case law. It appears that the legal position was not changed by the promulgation of the ("final") Constitution of 1996. Empowering legislation that delegates any legislative authority must lay down guidelines providing direction regarding the exercise of the delegated authority. Delegated legislation may of course not contain substantive norms.Like the German Bundesverfassungsgericht, the South African Constitutional Court seems to require empowering legislation to lay down the content, extent and purpose of the empowering provisions before it will enjoy legal effect. This content, extent and purpose will not primarily be evident from the delegated legislation, but must be contained in the empowering legislation itself. If this is not the case, the delegation of authority will have exceeded constitutional limits. Therefore, a wide delegation of legislative authority without limitations regarding its exercise, at least as far as content, extent and purpose are concerned, will without doubt be unconstitutiona

Oesophagojejunal anastomosis after total gastrectomy

The original publication is available at http://www.samj.org.zaTechniques of oesophagojejunal anastomosis were studied in chacma baboons (Papio ursinus ursinus). End-to-end anastomosis utilizing a Roux-en-Y loop and interrupted silk sutures gave the best results. End-to-side anastomosis performed in 3 animals resulted in jejunal volvulus.Publishers' versio

Measuring creativity and innovation abilities of final year undergraduate students in an emerging economy

Abstract: Creativity and Innovation is an important aspect of entrepreneurial education. Creativity skills enable students to create value that have the potential to commercialise their innovations. Creativity is dependent on the real world exposure of students, and in emerging economies their exposure to problems differ from developed economies..

A simple model of a vesicle drop in a confined geometry

We present the exact solution of a two-dimensional directed walk model of a drop, or half vesicle, confined between two walls, and attached to one wall. This model is also a generalisation of a polymer model of steric stabilisation recently investigated. We explore the competition between a sticky potential on the two walls and the effect of a pressure-like term in the system. We show that a negative pressure ensures the drop/polymer is unaffected by confinement when the walls are a macroscopic distance apart

Can Calvin provide a golden thread in the labyrinth of catechisms available in the church today?

A congregation can easily get lost in the labyrinth of catechism syllabi available for an educational ministry today. Calvin’s wish was that the church would have one catechism common to all churches. However, he consented to different churches developing different catechisms. He also warned about the power of catechesis, as it has the potential to influence the church for decades to come, and as the body of Christ can be strengthened or wounded through catechesis. Can Calvin provide a golden thread to navigate the labyrinth of catechisms available in the church today? Different models of catechesis are discussed briefly. The similarities and differences with Calvin’s approach to catechism are highlighted, and the article concludes with guidelines for contemporary catechesis

Forcing Adsorption of a Tethered Polymer by Pulling

We present an analysis of a partially directed walk model of a polymer which at one end is tethered to a sticky surface and at the other end is subjected to a pulling force at fixed angle away from the point of tethering. Using the kernel method, we derive the full generating function for this model in two and three dimensions and obtain the respective phase diagrams. We observe adsorbed and desorbed phases with a thermodynamic phase transition in between. In the absence of a pulling force this model has a second-order thermal desorption transition which merely gets shifted by the presence of a lateral pulling force. On the other hand, if the pulling force contains a non-zero vertical component this transition becomes first-order. Strikingly, we find that if the angle between the pulling force and the surface is beneath a critical value, a sufficiently strong force will induce polymer adsorption, no matter how large the temperature of the system. Our findings are similar in two and three dimensions, an additional feature in three dimensions being the occurrence of a reentrance transition at constant pulling force for small temperature, which has been observed previously for this model in the presence of pure vertical pulling. Interestingly, the reentrance phenomenon vanishes under certain pulling angles, with details depending on how the three-dimensional polymer is modeled

Die aard van wetgewende diskresies by die Suid-Afrikaanse uitvoerende gesag

This article focuses on the nature of legislative discretions in the hands of the executive authority of the state.Relevant concepts are analysed, followed by an exposition of the position regarding delegation of legislative authority to the executive under the previous constitutional dispensation when the country had a sovereign Parliament. This is followed by a discussion of the legal position in Germany, which shows similarities to the situation in South Africa. It appears that differences in approach to the problem exist worldwide, but one similarity is to be found in all, namely that a complete parliamentary abdication of legislative authority is always disallowed. What follows from this is that South African law seems to follow the German example regarding the delegation of legislative powers. It seems that the South African Constitutional Court considers the delegation of essential legislative authority as undesirable. Limits have to be placed on the extent of Parliament's competencies pertaining to legislative delegation. Furthermore the manner and form requirements in the Constitution must be met when legislation is adopted. This however does not occur in all instances of legislative delegation to the executive authority. When legislative delegation takes place, it is consistently done by granting the executive the authority to adopt subordinate legislation, which in any event has the same legal effect as legislation of Parliament itself.Next the Transitional Constitution of 1993 is considered against the background of relevant case law. It appears that the legal position was not changed by the promulgation of the ("final") Constitution of 1996. Empowering legislation that delegates any legislative authority must lay down guidelines providing direction regarding the exercise of the delegated authority. Delegated legislation may of course not contain substantive norms.Like the German Bundesverfassungsgericht, the South African Constitutional Court seems to require empowering legislation to lay down the content, extent and purpose of the empowering provisions before it will enjoy legal effect. This content, extent and purpose will not primarily be evident from the delegated legislation, but must be contained in the empowering legislation itself. If this is not the case, the delegation of authority will have exceeded constitutional limits. Therefore, a wide delegation of legislative authority without limitations regarding its exercise, at least as far as content, extent and purpose are concerned, will without doubt be unconstitutional

Building a framework for determining the optimal supplier shipping performance

Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2012.Cataloged from PDF version of thesis.Includes bibliographical references (p. 67-69).Most companies aim for perfect on-time delivery from suppliers, since late deliveries can cause supply disruptions and raise the cost of inventory, transportation and coordination. But this assumes that companies do not incur expenses in increasing or maintaining supplier performance. Our thesis looks at the problem faced by those companies that do invest in suppliers to help them achieve a desired performance level. In these special cases, a perfect target may no longer yield the minimum cost incurred over a performance spectrum. Our thesis provides a framework that companies can use to determine an optimal target for timely deliveries by comparing the cost implications of different supplier performance levels. We pursue an empirical approach, using the data and metrics of an industrial equipment manufacturer that uses a hit-or-miss performance measure to evaluate on-time supplier deliveries. Within the scope of this performance management system, we determine the relevant cost categories. Using regression analysis, we create models projecting each category's expected behavior based on data we collect. Combining the models allows us to calculate a system optimal point at which the incremental cost of supplier development towards an improved performance target matches the benefit derived from avoided supply disruption. This performance target minimizes the total cost of the performance management system. While our framework is calibrated to a specific company, the models we create are general enough to be adapted by companies facing similar problems. By laying out our treatment of costs, we hope to make it feasible for other companies to calculate a target that makes sense: one that suppliers can achieve and purchasers can afford.by Maximilian L. Hurd and Izak W. J. van Rensburg.M.Eng.in Logistic

Fresh look at randomly branched polymers

We develop a new, dynamical field theory of isotropic randomly branched polymers, and we use this model in conjunction with the renormalization group (RG) to study several prominent problems in the physics of these polymers. Our model provides an alternative vantage point to understand the swollen phase via dimensional reduction. We reveal a hidden Becchi-Rouet-Stora (BRS) symmetry of the model that describes the collapse ($\theta$-)transition to compact polymer-conformations, and calculate the critical exponents to 2-loop order. It turns out that the long-standing 1-loop results for these exponents are not entirely correct. A runaway of the RG flow indicates that the so-called $\theta^\prime$-transition could be a fluctuation induced first order transition.Comment: 4 page