Implementing a flexible structure in undergraduate science curricula

A proposal for undergraduate curriculum reform in South Africa: The case for a flexible curriculum structure” (CHE, 2013) suggests a number of scenario (models) in order to increase the number of graduates nationally. For the past 20 years South African higher education institutions were expected to start implementing a number of new policies and to align their internal functions and structures more optimally towards increased access, student throughput and quality teaching and learning, amongst other policy indicators. Since 1994, the SA government has been steering a radical transformation and restructuring of higher education, which kicked off with the White Paper on HE transformation (1995), the latter which formally culminated in the Higher Education Act 101 of 1997. Policies are generally developed in response to challenges, problems or inadequate progress in respect of nationally identified strategic goals or targets. Some policies are geared at national quality enhancement, in the process, establishing new national structures with dedicated terms of reference and responsibilities. Policies are thus created to bring about desirable change and are generally regarded as strong symbolic indicators of national intent (Bunting, 2008; Bunting, 2004). This paper reports on a sample of national and institutional policies and the directives stemming from them. The pertinent emphasis on an increase in the participation and eventually the academic success of undergraduate students in Science programmes is linked to insights brought about by increasingly improved National Senior Certificate (NSC) results, especially over the last decade. The quantitative investigation compares the academic performance of 1563 main stream first year degree students with 2110 extended degree students in seven fundamental science modules at the University of Johannesburg. Mean values were compared and regression provided predictive value of the different modules on performance. The enquiry culminates in speculation on the implications that the above mentioned Flexible Curriculum Structure might bring about and the dataset investigate flexible curriculum in practice at the University of Johannesburg

The structural validity and measurement invariance across gender of the Brief Corporate Entrepreneurship Assessment Instrument

Abstract: Background: Corporate entrepreneurial activity and innovation are presented as essential elements of organisational success, and gender diversity is often seen as an important variable in this context. The efficient measurement of these variables is essential to the management thereof. It is within this context that the Brief Corporate Entrepreneurship Assessment Instrument (BCEAI) was developed. Shorter instruments seem to be favoured by researchers and practitioners alike. However, little is known about the psychometric properties of the BCEAI, particularly regarding measurement invariance. Aim: This study seeks to address the structural validity and measurement invariance for the BCEAI applied for men and women. The objective was to establish the utility of the instrument within the South African context, with specific emphasis on cross-gender comparisons. Setting: Medium to large South African organisations, with more than 60 employees, were targeted for inclusion in the study. Once organisations indicated their willingness to participate, 60 employees per organisation were randomly selected to participate in the study. Methods: Data on the BCEAI were captured and pairwise multi-group confirmatory factor analyses with robust maximum likelihood estimation were used to examine four levels of measurement invariance, as well as the equivalence of latent means pertaining to male and female respondents. Results: Data were collected from 3180 employees representing 52 South African organisations. The results support the structural validity of the BCEAI and demonstrate strict measurement invariance for the BCEAI across gender. Equivalence of latent means across gender was also supported. Conclusion: These results reveal that the BCEAI mirrors the structure of the original instrument in the South African context and that BCEAI yields psychometrically equivalent scores among employees of both genders. Researchers and practitioners can therefore use the BCEAI with the knowledge that its theoretical structure is sound and can apply it with confidence when comparing male and female employees in the workplace

MPI-DING reference glasses for in situ microanalysis: New reference values for element concentrations and isotope ratios

We present new analytical data of major and trace elements for the geological MPI-DING glasses KL2-G, ML3B-G, StHs6/80-G, GOR128-G, GOR132-G, BM90/21-G, T1-G, and ATHO-G. Different analytical methods were used to obtain a large spectrum of major and trace element data, in particular, EPMA, SIMS, LA-ICPMS, and isotope dilution by TIMS and ICPMS. Altogether, more than 60 qualified geochemical laboratories worldwide contributed to the analyses, allowing us to present new reference and information values and their uncertainties (at 95% confidence level) for up to 74 elements. We complied with the recommendations for the certification of geological reference materials by the International Association of Geoanalysts (IAG). The reference values were derived from the results of 16 independent techniques, including definitive (isotope dilution) and comparative bulk (e.g., INAA, ICPMS, SSMS) and microanalytical (e.g., LA-ICPMS, SIMS, EPMA) methods. Agreement between two or more independent methods and the use of definitive methods provided traceability to the fullest extent possible. We also present new and recently published data for the isotopic compositions of H, B, Li, O, Ca, Sr, Nd, Hf, and Pb. The results were mainly obtained by high-precision bulk techniques, such as TIMS and MC-ICPMS. In addition, LA-ICPMS and SIMS isotope data of B, Li, and Pb are presented. Copyright 2006 by the American Geophysical Union

MPI-Ding reference glasses for in situ microanalysis: New reference values for element concentrations and isotope ratios

We present new analytical data of major and trace elements for the geological MPI-DING glasses KL2-G, ML3B-G, StHs6/80-G, GOR128-G, GOR132-G, BM90/21-G, T1-G, and ATHO-G. Different analytical methods were used to obtain a large spectrum of major and trace element data, in particular, EPMA, SIMS, LA-ICPMS, and isotope dilution by TIMS and ICPMS. Altogether, more than 60 qualified geochemical laboratories worldwide contributed to the analyses, allowing us to present new reference and information values and their uncertainties (at 95% confidence level) for up to 74 elements. We complied with the recommendations for the certification of geological reference materials by the International Association of Geoanalysts (IAG). The reference values were derived from the results of 16 independent techniques, including definitive (isotope dilution) and comparative bulk (e.g., INAA, ICPMS, SSMS) and microanalytical (e.g., LA-ICPMS, SIMS, EPMA) methods. Agreement between two or more independent methods and the use of definitive methods provided traceability to the fullest extent possible. We also present new and recently published data for the isotopic compositions of H, B, Li, O, Ca, Sr, Nd, Hf, and Pb. The results were mainly obtained by high-precision bulk techniques, such as TIMS and MC-ICPMS. In addition, LA-ICPMS and SIMS isotope data of B, Li, and Pb are presented

Getting Under the Skin: The Inscription of Dermatological Disease on the Self-Concept

Psychological factors have long been associated with the onset, maintenance and exacerbation of many cutaneous disorders (Newell, 2000, p. 8; Papadopoulos, Bor & Legg, 1999, p. 107). Chronic cutaneous disease is often visible to others so that social factors in coping and adjustment are thus highly relevant (Papadopoulos, et al., 1999, p. 107). Psychological factors tend, however, to be overlooked in the dermatological treatment domain when the skin problem is not regarded as life threatening (MacGregor, 1990 as cited in Papadopoulos, et al., 1999, p. 113). In 2004, at a meeting of the Editorial Board of Dermatology Nursing, the need for studies presenting the patient’s perspective on living with a skin disease was discussed. It was thought that qualitative exploration of the patient’s experience of cutaneous disease would provide medical and mental health care professionals with valuable insights and important information to help improve dermatology patient care (Hill, 2004, p. 399). More specifically, Papadopoulos et al. (1999, p. 122) posit that qualitative exploration of dermatological patients’ lived experience might help provide insight into the efficacy of coping strategies, the need for psychological counsel, and also the need for a more holistic understanding of this patient population rather than maintaining a dichotomous focus on either the mind or the body. Research in the field is currently characterised by (a) a predominance of quantitative studies, the design of which results in inevitable loss of in-depth information regarding the experiential world of sufferers of cutaneous disease (Hill, 2004, p. 399; Papadopoulos, et al., 1999, p. 122), and (b) a dearth of studies investigating the impact of disfiguring skin conditions on the self-concept. In order to address this lack, and simultaneously to contribute towards mapping the psychodermatological terrain in need of qualitative exploration, this paper attempts to integrate the findings of relevant studies in the fields of both dermatology and psychology, with specific focus on women suffering from psoriasis, a common chronic disorder of the skin, and the impact of this on the various dimensions of self. The primary aim of this paper is, however, to prompt qualitative - and, in particular, phenomenological - research in the area of body disfigurement and selfconcept in order to elucidate the lived experiences of people afflicted with disfiguring dermatological conditions, and as such to promote necessary change in the therapeutic domain. Indo-Pacific Journal of Phenomenology, Volume 6, Edition 1 May 200

Major and trace element compositions of melt particles and associated phases from the Yaxcopoil-1 drill core, Chicxulub impact structure, Mexico

Melt particles found at various depths in impactites from the Yaxcopoil-1 borehole into the Chicxulub impact structure (Yucatán) have been analyzed for their major and trace element abundances. A total of 176 electron microprobe and 45 LA-ICP-MS analyses from eight different melt particles were investigated. The main purpose of this work was to constrain the compositions of precursor materials and secondary alteration characteristics of these melt particles. Individual melt particles are highly heterogeneous, which makes compositional categorization extremely difficult. Melt particles from the uppermost part of the impactite sequence are Ca- and Na-depleted and show negative Ce anomalies, which is likely a result of seawater interaction. Various compositional groupings of melt particles are determined with ternary and binary element ratio plots involving major and trace elements. This helps distinguish the degree of alteration versus primary heterogeneity of melt phases. Comparison of the trace element ratios Sc/Zr, Y/Zr, Ba/Zr, Ba/Rb, and Sr/Rb with compositions of known target rocks provides some constraints on protolith compositions; however, the melt compositions analyzed exceed the known compositional diversity of possible target rocks. Normalized REE patterns are unique for each melt particle, likely reflecting precursor mineral or rock compositions. The various discrimination techniques indicate that the highly variable compositions are the products of melting of individual minerals or of mixtures of several minerals. Small, angular shards that are particularly abundant in units 2 and 3 represent rapidly quenched melts, whereas larger particles (>0.5 mm) that contain microlites and have fluidal, schlieric textures cooled over a protracted period. Angular, shard-like particles with microlites in unit 5 likely crystallized below the glass transition temperature or underwent fragmentation during or after deposition.The Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform February 202

Implicit personality conceptions of the Nguni cultural-linguistic groups of South Africa

The present study explored the personality conceptions of the three main Nguni cultural-linguistic groups of South Africa: Swati, Xhosa, and Zulu. Semistructured interviews were conducted with 116 native speakers of Swati, 118 of Xhosa, and 141 of Zulu in their own language. Participants provided free descriptions of 10 target persons each; responses were translated into English. Twenty-six clusters of personality-descriptive terms were constructed based on shared semantic content and connotations of the original responses. These clusters accounted for largely identical content in all three groups. The clusters represented an elaborate conception of social-relational aspects of personality revolving around the themes of altruism, empathy, guidance, and harmony. The patterning of responses suggests that the individual is viewed as inextricably bound to his or her context of social relationships and situations. The findings are discussed with reference to the Big Five model of personality and the culture and personality framework.http://dx.doi.org/ 10.1177/106939711140246

Exploring the personality structure in the 11 languages of South Africa

The present study, part of the development of the South African Personality Inventory (SAPI), explores the implicit personality structure in the 11 official language groups of South Africa by employing a mixed-method approach. In the first, qualitative part of the study, semistructured interviews were conducted with 1,216 participants from the 11 official language groups. The derived personality-descriptive terms were categorized and clustered based on their semantic relations in iterative steps involving group discussions and contacts with language and cultural experts. This analysis identified 37 subclusters, which could be merged in 9 broad clusters: Conscientiousness, Emotional Stability, Extraversion, Facilitating, Integrity, Intellect, Openness, Relationship Harmony, and Soft-Heartedness. In the second, quantitative part, the perceived relations between the 37 subclusters were rated by 204 students from different language groups in South Africa and 95 students in the Netherlands. The outcomes generally supported the adequacy of the conceptual model, although several clusters in the domain of relational and social functioning did not replicate in detail. The outcomes of these studies revealed a personality structure with a strong emphasis on social-relational aspects of personality.http://dx.doi.org/10.1111/j.1467-6494.2011.00751.xhttp://onlinelibrary.wiley.com/doi/10.1111/j.1467-6494.2011.00751.x/pd