In pursuit of the African PhD: A critical survey of emergent policy issues in select sub-Saharan African nations, Ethiopia, Ghana and South Africa

After decades of decline, African higher education is now arguably in a new era of revival. With the prevalence of knowledge economy discourse, national governments in Africa and their development partners have increasingly aligned higher education with poverty reduction plans and strategies. Research capacity has become a critical development issue; and widening participation to doctoral education is seen as an instrument for enhancing this capacity. Against this backdrop, this paper presents a review of emerging initiatives and policies that have some bearing on the PhD in select sub-Saharan African nations, namely Ethiopia, Ghana and South Africa. The findings show a shared optimism about the economic value of higher education, and explicate divergences and convergences in the framing of problems and policy responses related to doctoral education across the three nations. In the conclusion we reflect on challenges and policy omissions in the pursuit of the African PhD

PhD crisis discourse: a critical approach to the framing of the problem and some Australian 'solutions'

A feature of HE reform discourse is the tendency to construct the rationale for reform in terms of averting calamity and risk. We refer to this risk talk as 'crisis discourse'. This study examines the formulation of PhD crisis discourse internationally and in Australia. We find that a key feature of PhD crisis discourse is that universities are producing too many graduates for too few academic jobs; and graduates lack skills that enable them to be productive in jobs outside academia. In Australia, the discourse has shifted from one dominated by efficiency concerns from the late 1990s to the present focus on graduate skills and employability. The policy solution to the efficiency crisis in the Australian PhD resulted in system-wide changes in research training funding focused on increased efficiency. The current unemployability discourse has as yet prompted isolated institutional responses, the introduction of new PhD programs or re-badging existing offerings as pro-skills development offerings. Following an examination of three Australian institutional responses, we conclude that the crisis discourse signals tensions surrounding the PhD: should achievement in doctoral education be measured by outcomes in intellectual excellence or the responsiveness of qualification to the current needs and priorities of society

Qualitative inequality: experiences of women in Ethiopian higher education

This article examines the lived experiences of women in Ethiopian higher education (HE) as a counterpoint to understandings of gender equity informed only by data on admission, progression and completions rates. Drawing on a critical qualitative inquiry approach, we analyse and interpret data drawn from focus group discussions with female students and academic women in two public universities in Ethiopia. Individual accounts and shared experiences of women in HE revealed that despite affirmative action policies that slightly benefit females at entry point, gender inequality persists in qualitative forms. Prejudice against women and sexual violence are highlighted as key expressions of qualitative gender inequalities in the two universities. It is argued that HE institutions in Ethiopia are male-dominated, hierarchical and hostile to women. Furthermore, taken-for-granted gender assumptions and beliefs at institutional, social relational and individual levels operate to make women conform to structures of disadvantage and in effect sustain the repressive gender relations

The politicization of the PhD and the employability of doctoral graduates: An Australian case study in a global context

In this chapter, we reflect on current debates on the employability of doctoral graduates and related concerns about PhD graduates' work skills (or their lack) using recent Australia policy debates and developments (2008-2014) as a case study. The chapter proceeds in three sections. We begin with a global overview of the political attention being directed to the PhD and frame this politicization of the PhD as one consequence of the rise of knowledge economy discourses. We then survey the broad contours of the employment of PhD graduates debate and its contradictory elements, which simultaneously present cases for there being too many and too few PhDs. We argue that this is due to the operation of different frameworks for understanding the meaning, function and objectives of PhD education. The chapter then turns to Australia and a brief overview of the politicization of the Australian PhD under successive Federal governments since the 1990s. Political attention on the PhD has been intense in Australia since 2008, with the pursuit of an ambitious government-led research and innovation agenda with implications for the framing of the employability of PhD graduates and curriculum responses to address this issue. We conclude with some critical reflections on way this policy debate has been framed, highlighting some unexamined assumptions, and the failure to incorporate what is known about the diversity and prior work experience of the Australian PhD cohort

Tax-benefit microsimulation: Feasibility study in Ethiopia

The purpose of this study is to assess the feasibility of building a microsiumlation model of the Ethiopian tax and benefits system. We first provide a detailed describtion of the tax and benefits system of the country. This includes qualifying criteria, tax brakcets, and exemptions. We then describe household survey datasets available in the country and examine the nature of these datasets in terms of representativeness, completeness, and panel data structure. Finally, we provide assessments for whether each tax and benefits system can be microsimulatd given the rules and the nature of the data available

Weathering of the Ethiopian volcanic province: a new weathering index to characterize and compare soils

© Walter de Gruyter Berlin/Boston 2015.Soil formation occurs through numerous physical and chemical weathering processes acting to alter the parent rock on the Earths surface. Samples of surface soils were collected over a range of elevations (2000-3600 m) from profiles directly overlying basaltic to more felsic parent rocks, over a region in NW Ethiopia. The soils were investigated to determine their chemical composition and X-ray diffraction was used to identify and quantify individual mineral phases. The data set was analyzed using non-parametric statistics (Spearmans Rank and Mann-Whitney U tests) to compare the soils forming over the two parent rocks. Principal component analysis (PCA) was used to identify the mineral alteration assemblage and formation during pedogenesis. The extent of alteration was quantified using several chemical weathering indices (Chemical Index of Alteration = CIA; Chemical Index of Weathering = CIW), including an index calculated by multivariate analyses of the soil chemical composition data (weathering W index). Further to this we devised and tested a new weathering index (Wmin) using multivariate analysis of the soil mineralogy, to estimate the extent of weathering and physico-chemical proprieties of the parent rock from which the soil formed. The soils present a fair to advanced stage of alteration, with abundant iron (Fe) oxides (up to 40 wt%) and phyllosilicates (up to 57 wt%), including kaolinite-smectite (K-S) mixed-layer phases. The K-S was composed of either 30-50% kaolinite or 94-98% kaolinite layers. Discrete kaolinite was also present. The bimodal K-S mineralogical composition is likely due to two precursor phases: feldspar for the kaolinite-rich K-S and volcanic glass for the smectite-rich K-S. K-S with intermediate composition (50-94% kaolinite) was rare, due to its instability. Statistical analysis showed significant differences between the chemical compositions of the soils developed on the two different parent volcanic compositions. The soils overlying the more felsic parent rocks were less altered than those overlying the flood basalt. When comparing the weathering indices calculated in this study, we conclude that while the CIA and CIW may be more readily determined, the W and Wmin indices can elucidate information on the composition of the original rock from which they formed. The W index is more sensitive to certain variables when compared with the newly derived mineralogical Wmin index; however the Wmin index takes into account mineral phases within the sample, which provides a more detailed interpretation of weathering rates than chemistry alone. In addition the Wmin index correlated with meteorological variables, such as elevation (and consequently temperature and precipitation), known to influence the degree of pedogenesis. The Wmin index can be used to enhance our understanding of the processes that occur during weathering processes to supplement information gained from traditional chemical weathering indices

Glyphosate resistance by engineering the flavoenzyme glycine oxidase.

Glycine oxidase from Bacillus subtilis is a homotetrameric flavoprotein of great potential biotechnological use because it catalyzes the oxidative deamination of various amines and D-isomer of amino acids to yield the corresponding \u3b1-keto acids, ammonia/amine, and hydrogen peroxide. Glyphosate (N-phosphonomethylglycine), a broad spectrum herbicide, is an interesting synthetic amino acid: this compound inhibits 5-enolpyruvylshikimate-3-phosphate synthase in the shikimate pathway, which is essential for the biosynthesis of aromatic amino acids in plants and certain bacteria. In recent years, transgenic crops resistant to glyphosate were mainly generated by overproducing the plant enzyme or by introducing a 5-enolpyruvylshikimate-3-phosphate synthase insensitive to this herbicide. In this work, we propose that the enzymatic oxidation of glyphosate could be an effective alternative to this important biotechnological process. To reach this goal, we used a rational design approach (together with site saturation mutagenesis) to generate a glycine oxidase variant more active on glyphosate than on the physiological substrate glycine. The glycine oxidase containing three point mutations (G51S/A54R/H244A) reaches an up to a 210-fold increase in catalytic efficiency and a 15,000-fold increase in the specificity constant (the kcat/Km ratio between glyphosate and glycine) as compared with wild-type glycine oxidase. The inspection of its three-dimensional structure shows that the \u3b12-\u3b13 loop (comprising residues 50-60 and containing two of the mutated residues) assumes a novel conformation and that the newly introduced residue Arg54 could be the key residue in stabilizing glyphosate binding and destabilizing glycine positioning in the binding site, thus increasing efficiency on the herbicide

Degradation of human kininogens with the release of kinin peptides by extracellular proteinases of Candida spp.

The secretion of proteolytic enzymes by pathogenic microorganisms is one of the most successful strategies used by pathogens to colonize and infect the host organism. The extracellular microbial proteinases can seriously deregulate the homeostatic proteolytic cascades of the host, including the kinin-forming system, repeatedly reported to he activated during bacterial infection. The current study assigns a kinin-releasing activity to secreted proteinases of Candida spp. yeasts, the major fungal pathogens of humans. Of several Candida species studied, C. parapsilosis and C. albicans in their invasive filamentous forms are shown to produce proteinases which most effectively degrade proteinaceous kinin precursors, the kininogens. These enzymes, classified as aspartyl proteinases, have the highest kininogen-degrading activity at low pH (approx. 3.5), but the associated production of bradykinin-related peptides from a small fraction of kininogen molecules is optimal at neutral pH (6.5). The peptides effectively interact with cellular B2-type kinin receptors. Moreover, kinin-related peptides capable of interacting with inflammation-induced B1-type receptors are also formed, but with a reversed pH dependence. The presented variability of the potential extracellular kinin production by secreted aspartyl proteinases of Candida spp. is consistent with the known adaptability of these opportunistic pathogens to different niches in the host organism

Система життєздатності підприємства як основа його конкурентоспроможності

У статті проведено дослідження поняття «життєздатності» в й ого ш ирокому розумінні в контексті впливу системи життєздатності на рівень конкуренто-спроможності підприємства в сучасних умовах. Розглянуто поняття життєздатність на міждисциплінарному рівні та в якості економічної категорії; виявлені основні параметри життєздатності та їх вплив на конкурентоспроможність підприємства.In the article research the concept of «viability» is conducted in his wide understanding in the context of influencing of the system of viability on the level of competitiveness of enterprise in modern terms. A concept viability is considered at different subject level and in quality as economic category; educed basic parameters of viability and their influence on the competitiveness of enterprise