Vol 33, No 1 (2014)

Browse Archives

Original Research
The role of environmental education in the integration of care for the environment and human wellness Johanna G. Ferreira, Elizabeth Venter	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1177 \| 13 November 2014

Original Research
Latest findings in the genetic architecture of schizophrenia: The contribution of genetic studies among Afrikaners Johannes L. Roos	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a396 \| 24 February 2014

Original Research
Creating wellness in the school natural sciences curriculum: The two missing links Josef J. de Beer	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1179 \| 13 November 2014

Original Research
Influence of intense training program on cardio stress index Peet J. du Toit, Alan St. Clair Gibson, Paola Wood, Catherina C. Grant, Kristopher R. Grimes, Avinash M. Tope, Christa Janse van Rensburg, Johannes M. van Rooyen, Andrew Mckune, Evangeline Nortjé, Lizelle Fletcher, Ronel Ferreira, Annie Joubert, Andre Stander	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1180 \| 13 November 2014

Original Research
Strategies for a smooth implementation of the South African professional learning community model Christina J. van Staden, Elsa Mentz	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a776 \| 19 March 2014

Original Research
The supply of electricity by Eskom: The impact of load shedding and higher prices on the South African economy Ben J. Volkwyn, Ewert P.J. Kleynhans	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a430 \| 29 August 2014

Original Research
6,7-Dimethoxycoumarin, the active substance of the parsley tree, Heteromorpha arborescens Thomas Makungo, Teunis van Ree	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a762 \| 13 October 2014

Original Research
Integrated, qualitative and quantitative career counselling and career construction with a learner with a technical interest and aptitude who presents with attention deficit leads to positive results Jacobus G. Maree	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1183 \| 14 October 2014

Original Research
The economic impact of taxation on mine water in South Africa Jacolien Steyn, Ewert P.J. Kleynhans	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a780 \| 04 November 2014

Original Research
The use of ultrasonic pulse velocity measurements to monitor the effectiveness of concrete patch repairs Johannes J. Bester, Deon Kruger	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a788 \| 13 November 2014

Original Research
Metacognitive awareness, self-directedness in learning and performance of prospective intermediate-senior phase mathematics teachers Marthie S. Van der Walt	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1169 \| 13 November 2014

Original Research
A comparative study on knowledge and perceptions of radioactivity Jeanne Kriek, Ilsa Basson, Corene Coetzee, Helene Muller	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1172 \| 13 November 2014

Original Research
The effect of emotional state on the learning of visual skills Caroline E. Mills, Nicoleen Coetzee, Evangeline Nortje, Michael Kleynhans, Ronél Ferreira, William J. Fraser, Peet Du Toit	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1171 \| 13 November 2014

Original Research
A comparative study of the accumulation of metals in the barnacle (Tetraclita serrata) and the black mussel (Choromytilis meridionalis) in False Bay, South Africa Adriaan J. Reinecke, Sophia A. Reinecke, Naomi P. Mdzeke	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1181 \| 13 November 2014

Original Research
Automatic genre classification for Afrikaans Dirk Snyman, Gerhard van Huyssteen, Walter Daelemans	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a759 \| 24 November 2014

Original Research
Role perceptions of lecturers of first year science students: A focus on gender differences Melanie Jacobs, Gerrie J. Jacobs	\| HTML \| EPUB \| XML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a857 \| 24 November 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Development of new ‘green’ methodology for the synthesis of substituted phenylacetic acid derivatives as precursors to isoflavonoids and related compounds Tanya Pieterse	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1015 \| 03 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
The synthesis of silver phosphine phenyl derivatives for the use in cancer studies Kariska Potgieter, Reinout Meijboom, Marianne Cronje	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1013 \| 04 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
A PCR generation method for receptor-protein genes from Busseola fusca midgut material potentially involved in Bt-resistance Bianca Venter, Cornelius C. Bezuidenhout	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a932 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Optimising the time series analysis methods for changeable astrophysic sources: AE Aquarii Hendrik J. van Heerden, Petrus J. Meintjes	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a934 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Reduction of water poverty through mapping with a focus on weightings Charles van der Vyver	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a941 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Separation of tantalum and niobium with solvent extraction Maria J. Ungerer, Derik J. van der Westhuizen, Gerhard Lachmann, Henning M. Krieg	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a997 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Experimental investigation of ruthenium-indenylidene precatalyst for 1-octene metathesis Quentin L. Steyl, Cornie C.G.E. van Sittert, H.C. Manie Vosloo	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1001 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
The Molecular epidemiology of rotavirus infections in samples received from a private pathology practice during the 2010 and 2011 seasons Elizabeth M.C. Theron, John B. Dewar	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a998 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Organic-inorganic hybrid materials from metal halides Cara Slabbert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1003 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Accessing one’s neighbourhood school: A conflict between location and quality? The case of Gauteng Richelle Pienaar	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1017 \| 13 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
A framework for a reputation manager in a hybrid environment Channel Hillebrand, Marijke Coetzee	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1037 \| 17 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
The synthetic investigation of novel Ru-based complexes and their application as catalysts in organic transformation reactions Frederick P. Malan, Eric Singleton, Reinout Meijboom	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1033 \| 17 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Regioselectivity during the palladium catalysed hydro-esterification of stilbenes and related alkenes Maretha du Plessis, Charlene Marais, Ben C.B. Bezuidenhoudt	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1006 \| 17 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
The possibility of membrane-based solvent-extraction (MBSX) as a separation method for Zr and Hf in aqueous solutions Derik J. van der Westhuizen, Gerhard Lachmann, Henning M. Krieg	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a938 \| 17 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Synthesis of amino-MIL-53(Al) with adsorption of ferrocene and ferrocenecarboxylic acid Frederick H. Peens, Ernie H.G. Langner	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1019 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Au@Ag core-shell nanoparticles for CO₂ electroreduction Retha Peach	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1020 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Ambiguous websearch queries: A comparison of search engines and user interactions Wynand Nel, Lizette de Wet	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1021 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Objective Bayesian estimators for the censored Rayleigh model using different loss functions Johan T. Ferreira, Andriëtte Bekker	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1040 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Provisioning of REST services on mobile Android devices Charl van der Westhuizen, Marijke Coetzee	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1043 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Speciation of [ZrCl_x(OH).y(H₂O)_z]_q by electrochemical measurements Roné Kemp, Gerhard Lachmann, Derik J. van der Westhuizen, Cornelius J. le Roux, Henning M. Krieg	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1034 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Bayes estimators for the location parameter of the normal distribution with unknown variance under the LINEX loss function Janet van Niekerk	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a936 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2012
Synthesis and characterisation of new long alkyl chain bimetallic bridging tetra-carboxylate complexes Ebraheim Botha, Elizabeth Erasmus	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1045 \| 18 June 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Different logistic regression methods containing complete or quasi-complete separation in the sample M. Botes	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1193 \| 23 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Ultracapacitor rough terrain mine vehicle W.A. Bisschoff, R. Gouws	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1187 \| 23 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
A survey in effective artificial intelligence for modern board games D. Brand	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1194 \| 23 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
An electrochemical and computational study of thenoyl-containing Rh(I) β-diketonato complexes H. Ferreira, J. Conradie, M.M. Conradie	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1195 \| 23 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Activation and utilisation of CO₂ as C1 building block W.B.M. Fouché	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1196 \| 25 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Creation of additional space under high CO₂ pressure in a metal-organic framework I. Grobler, C. Esterhuysen, L.J. Barbour	\| PDF \| HTML
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1197 \| 28 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
The design of a wireless reporting system for the MINQUIZ trivia competition M.A.F. Kruger, M.J. Grobler	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1198 \| 28 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Picture postcards versus production landscapes: The case of wind farms in the West Coast region of South Africa A. Lombard	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1199 \| 28 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Modelling the potential leakage of personally identifiable information through online social networks C. Louw	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1200 \| 28 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
The role of the statistical consultant at universities S.L. Makgai	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1202 \| 28 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
The design of a three-dimensional virtual reception system for large buildings J. Louw	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1201 \| 29 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Polycyclic aromatic hydrocarbons (PAHs) in the aquatic ecosystems of Soweto and Lenasia W. Pheiffer, R. Pieters, L.P. Quinn, N.J. Smit	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1204 \| 29 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Characteristic Taylor cone formation time optimisation of electrospray systems C.L. Pieterse	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1205 \| 29 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Determining the (anti)androgenic activity of agricultural pesticides in aquatic systems with a luminescence bio-assay L. Powrie	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1206 \| 29 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Enzymolgy and cytotoxicity of pathogenic heterotrophic plate count bacteria isolated from untreated drinking water S. Prinsloo, R. Pieters, C. Bezuidenhout	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1207 \| 29 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
The effect of copper- and nickel based catalysts on the pyrolysis of polytetrafluoroethylene G.J. Puts, P.L. Crouse	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1208 \| 29 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Molecular movies: Ultrafast measurements on structural dynamics of crystals and technology developments in ultrafast science A.B. Smit	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1209 \| 31 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Synthesis of tetrafluoroethylene through pyrolysis of the salts of pentafluoropropionic acid L. van Eeden, P.L. Crouse	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1210 \| 31 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
Design of a transmission line monitoring solution for an unmanned quadcopter T. van Rooyen, R. Gouws	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1211 \| 31 July 2014

Conference Abstract: Studentesimposium in die Natuurwetenskappe 2013
The application of multi- and hyperspectral remote sensing techniques in the assessment of stress factors in maize crops J.F. Vermeulen	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1212 \| 31 July 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
2-Ethyl-3-O-sulphamoyl-estra-1,3,5(10)16-tetraene causes cell death via the intrinsic pathway of apoptosis E. Wolmarans, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1218 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Conventional Alexa 488 Hydrazide in Quantum dot labelling of conjugates for lipopolysaccharide binding studies in Arabidopsis thaliana protoplast L. Mgcina, L.A. Piater	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1226 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Standardisation of techniques for bone cellular research A.E. Kasonga, S. Marais, J.C.A. Boeyens, M.C. Kruger, M. Coetzee	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1215 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
The Sulforhodamine B Assay in comparison with three commonly used cytotoxicity assays A. van Tonder, A. Joubert, A.D. Cromarty	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1216 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Modulation of osteoclast formation and activity by phytoestrogens and docosahexanoic acid in RAW264.7 murine monocytes N. Shepherd, C. de Jager, A. Kasonga, M.C. Kruger, M. Coetzee	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1219 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
In vitro and in vivo anti-cancer effects of 2-ethyl-3-O-sulphamoyl-estra-1,3,5(10)15-tetraene-3-ol-17-one and 2-ethyl-3-O-sulphamoyl-estra-1,3,5(10)16-tetraene A.E. Theron, R. Prudent, J. Viallet, A. Martinez, C. Prunier, L. Lafanechère, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1220 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Methods for rapid biotyping of Vibrio cholerae based on toxin-coregulated Pilus-protein A (TcpA) variation R.E.S. Ferreira, T.G. Barnard, G. Koorsen	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1222 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Condition of Potchefstroom historic oak avenue: An ecological approach R. Vooys, S.S. Cilliers, J. Berner, W. Breytenbach	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1232 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Clinic garden survey in the Ngaka Modiri Molema district municipality, North-West Province: Vegetation, management and social issue S. Maré, S.S. Cilliers	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1233 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
The effect of sport specific exercises on the visual skills of adult rugby players P. Jansen van Vuuren, E. Henning, M. Kleynhans, H.C. Terblanche, D. Crafford, C. Grobbelaar, S. Gray, P.S. Wood, C.C. Grant, D.C. Janse van Rensburg, P.E. Kruger, P.J. du Toit	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1234 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
The construction of a rugby player index for the successful evaluation of rugby players S. le Roux, E. Henning, M. Kleynhans, H.C. Terblanche, D. Crafford, C. Grobbelaar, P.S. Wood, C.C. Grant, D.C. Janse van Rensburg, P.E. Kruger, P.J. du Toit	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1235 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Interesting seabird parasites E.A. Ueckermann, H. Heyne, L.R. Tiedt	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1236 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Meloidogyne enterolobii (= Meloidogyne mayaguensis): A case study of a root-knot nematode species M. Marais	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1237 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
A historical overview of the distribution of African horse sickness in Namibia D. Liebenberg, T. de Klerk, H. van Hamburg	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1242 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
The use of diatoms in the conservation management of Hewitt’s Ghost frog V. Botha, C. Weldon, J.C. Taylor	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1246 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Comparing Cardio Stress Index between sedentary and active populations E. Henning, H.C. Terblanche, M. Kleynhans, D. Crafford, P. Wood, C. Grant, P.J. du Toit	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1221 \| 18 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Exploitation and characterization of resistance to the root-knot nematode Meloidogyne incognita (Nematoda, Tylenchida) in soybean (Glycine max L. Merr) C. Venter, H. Fourie	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1239 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Effect of selected endocrine disruptors on male urogenital system development and reproductive parameters in rats S.M. Patrick, M.S. Bornman, A.M. Joubert, C. de Jager	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1224 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
In vitro evaluation of a novel Estradiol analogue with nanomolar antimitotic and carbonic anhydrase inhibitory activity B.A. Stander, F. Joubert, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1214 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
2-Ethyl-3-O-sulphamoyl-estra-1,3,5(10)16-tetraene (C19) induces cell death via the autophagy in breast adenocarcinoma cells D.S. Nkandeu, T.V. Mqoco, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1217 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Production of full-length H5 in E. coli and purification by FPLC D. Patini, N. Da Camara, G. Koorsen	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1227 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Biofumigation effect of Brassica napus on soil microbial communities C. Potgieter, S. Claassens, M. de Beer	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1228 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Using a cell viability assay to determine the cytotoxic effects of water contaminated by microbes S. Prinsloo, R. Pieters, C. Bezuidenhout	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1229 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
A PCR detection method for mutations in receptor protein genes from Busseola fusca midgut material potentially involved in Bt-resistance B. Venter, C.C. Bezuidenhout	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1230 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Urbanisation, change and transformation of natural grasslands and wetlands in the Tlokwe municipal area C. Pretorius, M.J. du Toit, S.S. Cilliers	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1231 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
A possible quarantine nematode in the Hartswater area, Northern Cape A. Swart, R. Knoetze, L.R. Tiedt, M. Truter, A.H. McDonald	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1238 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Seasonal migration and reproductive behaviour of the Common River Frog (Amietiaangolensis) in the North-West University Botanical gardens J. Viviers, D.J.D. Kruger, L.H. du Preez	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1241 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Correlation between amphibian habitat utilisation and blood parasite infection levels the Pongola floodplain E.C. Netherlands, N.J. Smit, L. du Preez	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1245 \| 19 September 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
ACP-DDRT-PCR-based transcriptional profiling of differentially-expressed genes (DEGs) in Arabidopsis thaliana following ergosterol elicitation J.S. Sherwood, I.A. Dubery, L.A. Piater	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1225 \| 03 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Potentially problematic elements in sediment and fish from the Orange-Vaal River system W. Pheiffer, R. Pieters, H. Bouwman, C. Mor	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1262 \| 10 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Specific immunological tear protein analysis in patients with keratoconus and dry eye disease R. Schnetler, G. Koorsen, W.D.H. Gillan	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1223 \| 15 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Monitoring of feedlot associated flies fly populations at Karan Beef feedlot M. Evert, H. van Hamburg	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1261 \| 15 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2012
Efficacy of the product F10 against amphibian chytrid fungus M.S. de Jong, C. Weldon	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1271 \| 15 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
The antidiabetic potential of a polyherbal tea mixture and its constituents in vitr V. Paddy, J.J. van Tonder, V. Steenkamp	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1249 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
2-Ethyl-3-O-sulfamoïel-estra-1,3,5(10)16-tetraene causes cell death via the intrinsic pathway of apoptosis E. Wolmarans, K.H. Sippel, R. McKenna, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1250 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Effects of estradiol analogues on blood: A pilot study T.V. Mqoco, L. Repsold, E. Wolmarans, S. Nkandeu, A.E. Theron, B.A. Stander, T. Piorkowski, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1251 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
A retrospective case-study to determine the efficacy of Zolpidem in neurologically impaired patients to improve brain functioning and mental cognition M. Venter, C. Fourie, K. Khuzwayo, N. Soupen, P.J. du Toit, Y. Hlophe, C. Grobbelaar, P. Jansen van Vuuren, E. Nortje, M. Kleynhans, H.W. Nel, R.P. Clauss, N.E. Nyakale, M.M. Sathekge	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1252 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Combination of antimitotic chemotherapy and glycolytic inhibitor eradicates breast carcinoma cells through apoptosis and autophagy X.X. Stander, B.A. Stander, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1253 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
The in vitro response of osteoclast-like and osteoblast cells to electrospun calcium phosphate biphasic candidate scaffolds for bone tissue engineering I. Wepener, W. Richter, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1256 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Determination of in vitro hepatotoxicity of two plants of the Apocynaceae family W. Cordier, V. Steenkamp	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1257 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Sperm vitrification: An alternative to conventional cryopreservation M. Slabbert, S.S. du Plessis, C. Huyser	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1259 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Combination of glucose transporter inhibitors and oestrone analogues on breast cancer cells A. van Tonder, A.J. Joubert, A.D. Cromarty	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1263 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Comparing the numbers of four bird species, House Sparrow, Cape Glossy Starling, Laughing Doves and Cape Turtle Dove in Gauteng and Limpopo L. Steyn, J.N. Maina	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1264 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Variability in metal accumulation in Bothriocephalus acheilognathi: The time warp B.M. Gilbert, A. Avenant-Oldewage	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1265 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Neopolystoma (Monogenea: Polystomatidae) egg production influenced by environmental temperature. L.N. Meyer, L.H. Du Preez, O. Verneau	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1267 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Preliminary results on the biodiversity of South African amphibian blood parasites E.C. Netherlands, N.J. Smit, L.H. du Preez	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1268 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
A retrospective case-study to determine the efficacy of Zolpidem in neurologically impaired patients to improve brain perfusion and function. P. Jansen van Vuuren, N. Soupen, K. Khuzwayo, M. Venter, C. Fourie, P.J. du Toit, Y. Hlophe, C. Grobbelaar, E. Nortje, M. Kleynhans, H.W. Nel, R.P. Clauss, N.E. Nyakale, M.M. Sathekge	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1273 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Energy system contribution and correlates to performance in a 2000 m rowing ergometry time trial in South African rowers J.R. Clark, P.J. Du Toit, E. Kruger	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1274 \| 07 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Assisted Reproduction Technology procedures in South Africa: The price to pay C. Huyser, L. Boyd	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1258 \| 10 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Antibacterial activities of Southern African tree families and orders against Gram-negative bacteria E. Pauw, J.N. Eloff	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1272 \| 10 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
The effect of indirect exposure to Cry 1Ab proteins on the biology of the green Lacewing (Chrysoperla Pudica) J.F. Warren, J. van den Berg, H. du Plessis	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1270 \| 10 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
One frog, two mongenea flatworms M. Theunissen, M. Badets, L. du Preez	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1269 \| 16 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Modulation of osteoclast formation and bone resorption by fermented and unfermented rooibos tea in RAW 2643.7 murine monocytes S. Moosa, A.E. Kasonga, M.C. Kruger, M. Coetzee	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1275 \| 21 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
The evaluation of the presence of nematophagous fungi on pasture in the False Upper Karoo areas and the potential for use as biological control agents P.T. Ngala	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1276 \| 21 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Repatriation of remains of the Ebo four from Angola M. Steyn, W.C. Nienaber, W.S. Boshof	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1277 \| 21 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Effects of exposure to selected endocrine disrupters on the testes of male Sprague-Dawley rats S.M. Patrick, M.S. Bornman, A.M. Joubert, C. de Jager	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1278 \| 21 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
Antitumor signalling of a novel microtubule inhibitor in human epithelial cervical carcinoma L.S. Boyd, D. Gozuacik, A.M. Joubert	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1279 \| 21 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
A cross-sectional comparison of nutrition knowledge, attitudes and dietary practices between learners and teachers in primary schools in a resource limited community in Bronkhorstspruit, South Africa M.D. Kupolati, U. MacIntyre, G. Gericke	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1280 \| 21 October 2014

Conference Abstract: Annual Congress of the Biological Sciences Division 2013
The family Trichodoridae, stubby root nematodes and virus vectors M. Marais	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1281 \| 21 October 2014

Index
Posters presented at the School of Environmental Sciences and Development of the North-West University, Potchefstroom Campus, South Africa on 05 October 2012 Editorial Office	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1283 \| 21 October 2014

Index
Posters organised by the Faculty of Education and Department of Physiology at the University of Pretoria, Groenkloof Campus, South Africa on 16 October 2013 Editorial Office	\| HTML \| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1284 \| 24 October 2014

Reviewer Acknowledgements
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie Volume 33, Nommer 1 Redaksionele Kantoor	\| PDF
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie \| Vol 33, No 1 \| a1357 \| 21 July 2015

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Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | ISSN: 0254-3486 (PRINT) | ISSN: 2222-4173 (ONLINE)

Vol 33, No 1 (2014)

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