Published Articles in Journals

Nnedinma has over 80 research scholarly output including publications in Q1 and Q2 peer-reviewed journals. Many of them are presented on this page, and the links can be found at the bottom of this page. However, if you are unable to access any of them, please contact Nnedinma on ned@nnedinmaumeokafor.com. For citations, see Google scholar.

Peer Reviewed Journal Publications

Daniel E., Nwankwo, N., Adah, C., Oshodi, O., Emuze, F., Chinyio, E., and Umeokafor, N. (2025) An Exploratory Study into UK Construction Industry Response to Digitalised Health & Safety Management, Journal of Engineering, Design and Technology, DOI: 10.1108/JEDT-02-2025-0095. [International Journal, International Referees] [*Impact Factor 2.6 (2024); SJR 2024 0.744; Q1; Scopus and WoS indexed].

Hashim, M. A., Che Ibrahim, C. K. I., Jaafar, N. A. L., Nurul Elma Kordi, N. E., Haron, A. T., and Umeokafor, N. (2025) Building Data-driven Culture for Digital Competitiveness in Construction Industry: A Theoretical Exploration. International Journal of Construction Management. doi.org/10.1080/15623599.2024.2322237 [International Journal, International Referees] [*Impact Factor 4.0; SJR 2019 0.57; Q1.; Scopus and WoS indexed]. 2024




2025 Publications




2024 Publications

Hashim, M. A., Che Ibrahim, C. K. I., Jaafar, N. A. L., Nurul Elma Kordi, N. E., Haron, A. T., and Umeokafor, N. (2024) Building Data-driven Culture for Digital Competitiveness in Construction Industry: A Theoretical Exploration. doi.org/10.1080/15623599.2024.2322237  International Journal of Construction Management. [International Journal, International Referees] [Impact Factor 3.10; SJR 2019 0.57; Q1].

Umar, T and Umeokafor N., Zia, A., Egbu, C., Ahmed, S. and Saidani. M. (2024) How Engineering and Technology Sectors are Derailed by Legislations: A Case Study of Pakistan. Management, Procurement and Law. doi.org/10.1680/jmapl.24.00004, [International Journal, International Referees] [*Impact Factor 1.80 (two years); SJR 0.296; Q2; Scopus and Web of Science (WoS) indexed]

Umeokafor, N., Windapo, A., and Olatunji A. (2024) The Relationship Between Labour-only Procurement and Health and Safety Performance of Construction Projects. International Journal of Productivity and Performance Management. DOI: 10.1108/IJPPM-09-2022-0490. [International Journal, International Referees] [*Impact Factor 8.2; SJR 0.73; Q1; Scopus indexed and WoS ranked]

Umeokafor, N., Windapo, A., and Olatunji A. (2023) The Relationship Between Labour-only Procurement and Health and Safety Performance of Construction Projects. International Journal of Productivity and Performance Management. DOI: 10.1108/IJPPM-09-2022-0490.[International Journal, International Referees] [Impact Factor 4.68; SJR 0.73; Q1]

Umeokafor, N., Okoro, C., Diugwu, I., Umar, T. (2023) Design for safety in construction in Nigeria: A qualitative inquiry of the critical opportunities. International Journal of Building Pathology and Adaptation. DOI: 10.1108/IJBPA-05-2021-0066. [International Journal, International Referees].  [Impact Factor 1.78, SJR 0.39; Q2].

Umeokafor, N., Diugwu, I., Windapo, A., Manu, P. and Haroglu, H. (2023) Critical Barriers to Prevention through Design in Construction in Nigeria: A Qualitative Enquiry. Engineering, Construction and Architectural Management. DOI: 10.1108/ECAM-04-2021-0304. [International Journal, International Referees] [Impact Factor 3.18; SJR 0.68; Q1]

Mbanaso, F., Theophilus, S. C., Sam-Ateki, M. A., Nnadi, E. O., Umoren, U. A., Umeokafor, N. (2023) Investigation of impact of slow-release fertilizer and struvite on biodegradation rate of diesel-contaminated soils. Current Research in Environmental Sustainability. [International Journal, International Referees] [Impact Factor 7.23; SJR 2023 2.1; Q1].






2024 Publications








2022 Publications

Umeokafor, N., Umar, T., and Evangelinos, K. (2022) Bibilometric and Scientometric Analysis based Review of Construction Safety and health Research in Developing Countries from 1990 to 2021. Safety Science, 156 :105897-105897, doi.org/10.1016/j.ssci.2022.105897. [International Journal, International Referees] [Impact Factor 6.392; SJR 2021 1.44; Q1].

Okoro, C. S., Owojori, O. M., Umeokafor, N. (2022) The Developmental Trajectory of a Decade of Research on Mental Health and Wellbeing amongst Graduate Students: A Bibliometric Analysis. International Journal of Environmental Research and Public Health, 19(9), 4929; doi.org/10.3390/ijerph19094929  [International Journal, International Referees] [Impact Factor 4.614; SJR 0.81; Q1]

Umar, T. and Umeokafor N. (2022) Developing a Safety Climate Assessment Tool for Omani Construction Industry. International Journal of Service Science, Management, Engineering, and Technology (IJSSMET), 13: 1- 24. [International Journal, International Referees]. [Impact Factor 1.97, SJR 0.23; Q2].

Umar, T. and Umeokafor, N. (2022) Exploring the GCC Progress Towards United Nations Sustainable Development Goals. International Journal of Social Ecology and Sustainable Development (IJSESD), 13 (1), 1-32. [International Journal, International Referees]. [Impact Factor 1.08, SJR 0.25; Q3].

Umeokafor, N. I., Evangelinos, K. and Windapo, A. O. (2022) Strategies for Improving Complex Construction Health and Safety Regulatory Environments. International Journal of Construction Management. 22 (7), 1333-1344, Doi.org/10.1080/15623599.2019.1707853. [Impact Factor 2.250; SJR 2019 0.57; Q1]; Scopus and WoS indexed]

Umeokafor, N. I. (2022) Briefing: The role of higher education apprenticeship on apprentices’ mental health and wellbeing. Management. Procurement and Law Journal, 175 (2), 50-53, Doi.org/10.1680/jmapl.20.00035. [International Journal, International Referees]. [*Impact Factor 1.80 (two years); SJR 2019 0.21; Q2; Scopus and WoS indexed]

Nuseeb, M., Koussa, M., Matshidze, L., Umeokafor, N., and Windapo, A. (2021). Client Characteristics related Critical Success Factors for Public-Private Partnerships in South Africa. International Journal of Construction Supply Chain Management, 11(1), 49- 68. [International Journal, International Referees].  Impact Factor 0.08, SJR 0.12; Q4].

Windapo, A.O., Adediran, A.A., Rotimi, J.O.B. and Umeokafor, N. I. (2021) Construction Project Performance: The role of client knowledge and procurement systems. Journal of Engineering, Design and Technology.DOI: 10.1108/JEDT-06-2020-0219.[Impact Factor 0.760; SJR 0.32; Q2].




2021 Publications






2020 Publications

Umeokafor, N. I., Windapo, A. and Olatunji, O. A. (2020) Briefing: A conceptual framework for integrating health, safety and wellbeing into labour-only procurement. Management, Procurement and Law Journal.Doi.org/10.1680/jmapl.20.00010 [Impact Factor 0.280 ;SJR 2019 0.21; Q3].  

Umeokafor, N. I., Evangelinos, K. and Windapo, A. O. (2020) Strategies for Improving Complex Construction Health and Safety Regulatory Environments. International Journal of Construction Management.Doi.org/10.1080/15623599.2019.1707853. [Impact Factor 2.250; SJR 2019 0.57; Q2].

Umeokafor, N., I. (2020) Why copied or transposed safety, health and well-Being Legislation and standards are impracticable and irrelevant in Developing Economies. Policy and Practice in Health and Safety, 18 (1), 41–54 [Impact Factor 1.000; SJR 2019 0.43; Q2].

Umeokafor, N. I., Evangelinos, K. and Windapo, A. O. (2019) Causal Inferences of External–Contextual Domains on Complex Construction, Safety, Health and Environment Regulation. Safety Science, 118, 378–388. [Impact Factor 4.350; SJR 2019 1.24; Q1].   

Umeokafor, N. I. and Windapo, A. O (2019) The influence of religious consciousness on construction health and safety practices and performance.Journal of Construction in Developing Countries, 24 (1), 23–47.[Impact Factor 0.950; SJR 2019 0.31; Q3].



2019 Publications







2018 Publications

Umeokafor, N. I. (2018) Community interventions in construction health and safety and its implications: Evidence from Nigeria. Journal of Financial Management of Property and Construction, 23 (3), 312–329 DOI: 10.1108/JFMPC-10-2017-0041. [Impact Factor 0.760, SJR 1.29; Q3].

Umeokafor, N. I. and Windapo, A. O (2018) Challenges to and opportunities for establishing a qualitative approach to built environment research in higher education institutions, Journal of Engineering, Design and Technology 16(4), 557 –580. DOI: 10.1108/JEDT-06-2017-005. [Impact Factor 0.760; SJR 0.32; Q2].

Umeokafor, N. I. (2018) An investigation into public and private client attitudes, commitment and impact on construction health and safety in Nigeria. Engineering, Construction and Architectural Management, 29(6), 798–815. [Impact Factor 2.050; SJR 0.68; Q1].  

Umeokafor, N. I. and Windapo, A. O (2018) Understanding the underrepresentation of qualitative research approaches to built environment research in Nigeria. International Journal of Construction Education and Research, 14:3, 198–217, [Impact Factor 1.090; SJR 2019 0.35; Q2].

Umeokafor, N. I. (2017) An appraisal of the barriers to client involvement in health and safety in Nigeria’s construction industry. Journal of Engineering, Design and Technology, 15 (4), 471–487. [Impact Factor 0.760; SJR 0.32; Q2].

Umeokafor, N. I. (2017) Barriers to construction health and safety self-regulation: A scoping case of Nigeria. The Civil Engineering Dimension (Dimensi Teknik Sipil), 19 (1), 44–53.



2017 Publications






2014 - 2016 Publications

Umeokafor, N. I. (2016) Approaches, drivers and motivators to health and safety self-regulation in the Nigerian construction industry: a scoping study, Architectural Engineering and Design, 12 (6)460–475. [Impact Factor 2.130, SJR 2019 0.69; Q1].

Umeokafor, N. I. and Isaac D. (2016) Construction health and safety self-regulation in developing countries: A Nigeria case study, Journal for the Advancement of Performance Information and Value, 8(1), 26–41. .

Umeokafor, N. I.,(2015) A discussion of obser-view as a method of generating data in the construction industry. Civil Engineering Dimension, (Dimensi Teknik Sipil) 17, (1) 54–58.

Umeokafor, N., Umeadi, B., and Isaac, D., (2014) Determinants of compliance with health and safety regulations in Nigeria’s construction Industry. Journal of Construction Project Management and Innovation, 4, (S1) 882­–889.

Note: All SCImago data and ranking were obtained from https://www.scimagojr.com/journalrank.php on 25th December 2020.

Impact Factor was obtained on 28 December 2020 from https://academic-accelerator.com/

Non-Peer Reviewed Journal Publications

Umeokafor, N.I., Igwegbe, O., Umeadi, B., Evanggelinos, K., Lundy, S., Isaac, D., Jones, K., and Umeokafor, K. (2014) The pattern of occupational accidents, injuries, accident causal factors and intervention in Nigerian factories. Developing Countries Studies. 4, (15) 119–127.

Umeokafor, N., Isaac, D., Jones, K., and Umeadi, B. (2014) Enforcement of occupational safety and health regulations in Nigeria: An Exploration. European Scientific Journal. February 2014/Special/Edition 3, 93–104.

Umeokafor, N. I., Umeadi, B., Jones, K., and Igwegbe, O. (2014) Compliance with Occupational Safety and Health Regulations in Nigeria’s Public Regulatory Entity: A Call for Attention. International Journal of Scientific and Research Publications, 4 (5) 302–304. 

Umeokafor, N., Isaac, D, Jones, K., and Umeadi, B. (2013) Enforcement of occupational safety and health regulations in Nigeria: An exploration. In: 1st International Scientific Forum; 12 – 14 Dec 2013, Tirana, Albania.

 

Note: All SCImago data and ranking were obtained from https://www.scimagojr.com/journalrank.php on 25th June 2022. Impact Factors are from Clarivate analytics (where available) for the year 2023; the ones with arteritis (*) are 5-year impact factors (2023) from Clarivate analytics except where stated otherwise, all accessed on 8 Feb. 2025

Journal Editorials

Windapo, A., Umeokafor, N., and Olatunji, O. (2025). Innovative and Strategic Approaches for Overcoming Challenges in the  Construction Industry. Journal of Construction Business and Management, 7(2), v – vi. doi.org/10.15641/jcbm.7.2 

Windapo, A. and Umeokafor, N. (2024) Unveiling Construction Excellence: Strategies, Challenges and Innovations. Editorial June 2024. Journal of Construction Business and Management, 7(1), v – vii. Retrieved from doi.org/10.15641/jcbm.7.1.1630

Windapo, A., and Umeokafor, N. (2023b). Promoting Sustainable Construction Practices in Developing Countries: Comparative Insights and Future Directions. Editorial Dec 2023. Journal of Construction Business and Management, 6(2), v – vii. Retrieved from https://doi.org/10.15641/jcbm.6.2.1497.

Windapo, A., and Umeokafor, N. (2023a). Sustainable Improvement in Infrastructure Development in Africa: Which way forward? Editorial June 2023. Journal of Construction Business and Management, 6(1), v – ix, https://journals.uct.ac.za/index.php/jcbm/article/view/1384

Windapo, A., and Umeokafor, N. (2022) Improvement of the Performance of the Construction Industry through Education and Training, Journal of Construction Business and Management 5 (2), v-vii, https://doi.org/10.15641/jcbm.5.2.1309