Brain drain and South Africa's socioeconomic development: The waves and its effects

Many African countries are bedeviled with huge losses of human skills, and this, in turn, has affected thier development. From health professionals to teachers, academics and engineers, the continent has lost numerous skilled personnel who ought to be contributing extensively to its socio‐economic development. The socio‐economic development of a country hinges on the availability of skilled human resources to drive its growth. Brain drain has long being a challenge for South Africa as the country continues to lose skilled professionals to other countries, hence, the unsteady growth of its economy. Using a strict textual analysis of the relevant literature relating to brain drain in South Africa, the study found that the South African government lacks a clear cut policy on how to reduce brain drain, and this will impact the country's socioeconomic development in the long term. Using the theoretical framework of Lee's push and pull theory, the study argues that brain drain in South Africa is reinforced by certain socio‐economic factors. The paper concludes that South Africa's vision of becoming Africa's industrial hub may remain a dream if the country fails to put losing its skilled professionals under control.     

Empirical inflation models in developing countries: Sensitivity to the definition of inflation

Previous developing country inflation studies have demonstrated that the Harberger (monetarist) model's explanatory power may be quite sensitive to the time period or explanatory variables used. In this study, the model's sensitivity to the definition of the inflation rate variable itself ‐ the dependent variable ‐ is investigated. Using a cross‐section, time‐series data set of 19 developing nations, it is shown that the Harberger model is sensitive to the manner in which inflation is defined. Then, a similar investigation is conducted for another, more recently developed, model of the inflationary process (the Hanson model). This model exhibits less sensitivity to the choice of inflation variable.     

Economic development and welfare in China

Abstract

For most people in China, and particularly for the poorest, the revolution brought an unmistakable improvement in living standards. Despite the ample empirical evidence which supports this view, many prominent scholars in the field of Chinese economic studies have chosen to close their eyes to it, relying instead on theoretical arguments of dubious validity to maintain that the Chinese people have been the victims of their own revolution rather than its beneficiaries. The characteristic argument used by the proponents of this view points to the high levels of investment in the 1950s and claims that this can have come about in a poor country only at the expense of essential consumption. Their hegemony in the field was so complete prior to America’s Great Bourgeois Cultural Revolution of the 1960s that it is appropriate to term their position the orthodox one. It still prevails, despite the increasing challenge to which it has been subject. It is my purpose here to show the theoretical deficiency of this argument and then to indicate some of the empirical evidence which controverts it.     

The application of an automated allele concordance analysis system (CompareCalls) to ensure the accuracy of single-source STR DNA profiles

A powerful method for validating a scientific result is to confirm specific results utilizing independent methodologies and processing pathways. Thus, we have designed, developed and validated an automated allele concordance analysis system (CompareCalls, patent pending) that performs comparisons between two independent DNA analysis platforms to ensure the highest accuracy for allele calls. Application of this system in a quality assurance role has shown the potential to eliminate greater than 90% of the STR analysis required of a DNA data analyst. While this system is broadly applicable for use with any two independent STR analysis programs, either prior to or following human data review, we are presenting its application to data generated with the ABI Prism Genotyper software system versus data generated with the SurelockID system. With the automated allele concordance analysis system, the GeneScan DNA fragment data generated from an ABI 377 gel image are analyzed in two independent pathways. In one analysis pathway, the GeneScan data are imported into Genotyper software where STR labels are assigned to the fragment data based upon the criteria of the Kazam 20% macro. The "Kazam" macro provided with the Genotyper program works by labeling all peaks in a category (or locus) and then filtering (or removing) the labels from peaks, such as those in stutter positions, that meet predefined criteria. In the second pathway, the GeneScan data are imported into the SurelockID analysis platform where STR labels and error messages are assigned to the fragment data based upon hard-coded allele calling criteria and quality parameters. The resulting STR allele calls for each analysis platform are then compared, utilizing the automated allele concordance analysis system. Any differences in the STR allele calls between the two systems are flagged in a discordance report for further review by a qualified DNA data analyst. The automated allele concordance analysis system guides the DNA data analyst to the discordant data generated by either analysis platform. Additionally, the analyst is also directed to data that are of less than pristine quality which may have an increased potential for errors in interpretation by either analysis platform or by a human DNA data analyst. Implementation of an automated allele concordance analysis system will yield high-quality data for CODIS and free the human DNA data analyst to perform other critical duties within the laboratory.     

Book reviews

Computer Software — Legal Protection in the United Kingdom, 2nd edition Henry Carr and Richard Arnold Sweet and Maxwell 1992. ISBN 0 421 44380 4 £45

Legal Protection of Computer Programs in Europe — a Guide to the EC Directive Bridget Czarnota and Robert J Hart Butterworths 1991. ISBN 0 406 00542 7

Intellectual Property Rights in Sound Recordings, Film and Video J A L Sterling Sweet and Maxwell 1992. ISBN 0 421 4570 9

The European Market Place James Hogan Macmillan 1991. ISBN 0 333 51858 6

Intellectual Property D Bainbridge Pitman 1992. ISBN 0 273 034265 X