Publications

2025

1. Combrink, Herkulaas; Loth, Chrismi-Rinda; Sibanda, Patrick; Siyavoshi, Sara; Nkuna, Nkateko; Coetzee, Nick; et al. (2025). Reports for Advancing South African Sign Language for 4IR Technological Development Using Place Names. University of the Free State. Report. https://doi.org/10.38140/ufs.28847498.v3 

2024

2. Smart, B.T. and Combrink, H.M., 2024. The ontology of epidemics—A value‐dependent realist account of epidemics. Journal of Evaluation in Clinical Practice, 30(5), pp.831-837. 

3. Booysen, F., Guvuriro, S. and van Eyssen Combrink, H.M., 2024. Social discounting in a symmetric giving and taking frame: An artifactual field experiment with young South African adults. Journal of the Experimental Analysis of Behavior, 122(3), pp.322-334. 

2023

1. Combrink, H.M., Marivate, V. and Masikisiki, B., 2023. Technology-enhanced learning, data sharing, and machine learning challenges in South African education. Education Sciences, 13(5), p.438. 

2. Maritz, J., Combrink, H.M.V.E., de Wet, K., Saba, L. and Witten, C.B., 2023. Opportunities and Challenges of Improved Small-Scale Farming Using Digital Solutions in the Free State Province, South Africa1. Business Opportunities, Start-Ups, and Digital Transformation in Africa, p.417. 

3. de Wet, K. and Combrink, H.M.V.E., 2023. Digital Transformation in South Africa with Examples from the Free State-An Introduction1. Business Opportunities, Start-Ups, and Digital Transformation in Africa, p.379. 

4. Combrink, H.M.V.E., de Wet, K., de Villiers, F., Brokensha, S. and Kotzé, E., 2023. Basic digital education and the digital divide in South Africa: A Free State perspective1. Business Opportunities, Start-Ups, and Digital Transformation in Africa, p.391. 

5. Verlag, L.I.T., 2023. Business opportunities, start-ups, and digital transformation in Africa (Vol. 23). Lit Verlag. 

2022

1. van der Merwe, N.C., Ntaita, K.S., Stofberg, H., Combrink, H.M., Oosthuizen, J. and Kotze, M.J., 2022. Implementation of multigene panel testing for breast and ovarian cancer in South Africa: a step towards excellence in oncology for the public sector. Frontiers in Oncology, 12, p.938561. 

2. Combrink, H.M., Marivate, V. and Rosman, B., 2022, December. Reinforcement learning in education: A multi-armed bandit approach. In International Conference on Emerging Technologies for Developing Countries (pp. 3-16). Cham: Springer Nature Switzerland. 

3. Combrink, H.M., Marivate, V. and Rosman, B., 2022. Comparing Synthetic Tabular Data Generation Between a Probabilistic Model and a Deep Learning Model for Education Use Cases. arXiv preprint arXiv:2210.08528. 

4. MvE Combrink, H., Marivate, V. and Rosman, B., 2022. A Framework for Undergraduate Data Collection Strategies for Student Support Recommendation Systems in Higher Education. arXiv e-prints, pp.arXiv-2210. 

5. Combrink, H. and Oosthuizen, L., 2022. Strengthening online teaching and learning by closing the feedback loop. Southern African Review of Education with Education with Production, 27(1), pp.57-76. 

6. Combrink, H.M.V.E., van der Merwe, N.C., Katarya, R., de Wet, K. and Motloung, M.H., 2022. A South African Indian population group dataset for breast cancer and BRCA1/2 variants. Data in Brief, 42, p.108180. 

7. Van der Merwe, N.C., Combrink, H.M., Ntaita, K.S. and Oosthuizen, J., 2022. Prevalence of clinically relevant germline BRCA variants in a large unselected South African breast and ovarian cancer cohort: a public sector experience. Frontiers in genetics, 13, p.834265. 

2021

1. Combrink, H.M., Oosthuizen, J., Visser, B., Chabilal, N., Buccimazza, I., Foulkes, W.D. and van der Merwe, N.C., 2021. Mutations in BRCA-related breast and ovarian cancer in the South African Indian population: a descriptive study. Cancer Genetics, 258, pp.1-6. 

2. Broadbent, A., Combrink, H. and Smart, B., 2021. Reply to Lurie et al. Global Epidemiology, 3. 

3. Jassat, W., Mudara, C., Ozougwu, L., Tempia, S., Blumberg, L., Davies, M.A., Pillay, Y., Carter, T., Morewane, R., Wolmarans, M. and von Gottberg, A., 2021. Difference in mortality among individuals admitted to hospital with COVID-19 during the first and second waves in South Africa: a cohort study. The Lancet Global Health, 9(9), pp.e1216-e1225. 

4. Jassat, W., Cohen, C., Tempia, S., Masha, M., Goldstein, S., Kufa, T., Murangandi, P., Savulescu, D., Walaza, S., Bam, J.L. and Davies, M.A., 2021. Risk factors for COVID-19-related in-hospital mortality in a high HIV and tuberculosis prevalence setting in South Africa: a cohort study. The Lancet HIV, 8(9), pp.e554-e567. 

5. Smart, B., Combrink, H., Broadbent, A. and Streicher, P., 2021. Direct and indirect health effects of lockdown in South Africa. 

6. Bayani, D.B., Krubiner, C., Barasa, E., Biribawa, C., Broadbent, A., Casas, L., Chalkidou, K., Chi, Y.L., Combrink, H., Denis, O.O. and Kaakyo, M., 2021. The indirect health effects of COVID-19: emerging findings from Kenya, the Philippines, South Africa, and Uganda. 

2020

1. MARIVATE, V., NSOESIE, E. and COMBRINK, H.M., 16. AFRICA'S RESPONSES TO COVID-19: AN EARLY DATA SCIENCE VIEW. COVID-19 FROM THE MARGINS, p.110. 

2. Marivate, V., Arbi, R., Combrink, H., de Waal, A., Dryza, H., Egersdorfer, D., Garnett, S., Gordon, B., Greyling, L., Lebogo, O. and Mackie, D., 2020. Coronavirus disease (COVID-19) case data-South Africa. 

3. Herkulaas, M. and Oosthuizen, L.L., 2020. First-year student transition at the University of the Free State during COVID-19: Challenges and insights. Journal of Student Affairs in Africa, 8(2), pp.31-44. 

4. Marivate, V. and Combrink, H.M., 2020. Use of available data to inform the COVID-19 outbreak in South Africa: a case study. arXiv preprint arXiv:2004.04813. 

5. Mtsweni, N., Combrink, H.M. and Marivate, V., 2020. Mapping the South African health landscape in response to COVID-19. arXiv preprint arXiv:2006.15216. 

6. Broadbent, A., Combrink, H. and Smart, B., 2020. COVID-19 in South Africa. Global Epidemiology, 2, p.100034. 

7. Broadbent, A., Combrink, H. and Smart, B., 2021. Corrigendum to “COVID-19 in South Africa”[Global Epidemiology 2 (2020) 100034]. Global Epidemiology, 3.