In contributing to reducing the adverse effects of non-renewable energy sources, this paper researched how human capital can enhance the penetration level of renewable energy, which is highly abundant in Nigeria, Sub-Saharan Africa. This paper, using qualitative research methodology through Bibliometric analysis, reviewed three hundred and three (303) papers published between the year 2000 and March 2022. The bibliometric study covered publications per author, publications per country, research focus based on co-occurrence keywords, and research thread. The findings revealed that publications on how human capital can aid renewable energy penetration have been slow and in an infant stage in the past two decades. It also shows that there have been eighteen (18) papers on the subject papers in the last twenty years, showing the low level of human capital development in the energy sector. The intellectual patterns via the co-occurrence of keywords shows five (5) clusters, which are economics of renewable energy sources, human capital factors in environmental management, economic factors in energy supply and demand, sustainable energy factors, and human capital development and economy. These cluster areas revealed how human capital could be developed to increase the penetration level of the abundant renewable energy in the world. Thus, this paper recommends intensive efforts in optimizing human capital through inter-organizational collaboration on renewable energy technologies and periodic training.

Water, energy, and food are economic resources whose security and sustainability affect human livelihood. This paper is dedicated to exploring the influence of economic indicators on the security and sustainability of these resources within the water–energy–food (WEF) nexus. The research employed a quantitative approach, gathering data through a structured questionnaire from 282 WEF management professionals in South Africa. The collected data were subjected to statistical analyses, including mean score ranking, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and structural equation modeling (SEM) using EQS and SPSS software. The results of this study highlight the significant impact of economic indicators on the sustainable security of WEF resources. The mean ranking revealed that there is a need to understand people’s economic power for resource sustainability. The CFA and SEM analyses identify four key economic indicators that influence resource security: WEF resource pricing mechanisms, employment rates in the WEF sectors, WEF resource importation, and WEF resource exportation. In conclusion, managing economic indicators within the WEF nexus calls for strategic investment based on comparative advantage. The study provides valuable policy recommendations to support this approach. Graphical Abstract

Primary health care (PHC) is a fundamental, cost-effective approach in delivering essential healthcare services to achieve quality life for all. This study assesses service quality and patient satisfaction in the PHC sector in South West Nigeria. A multi-stage sampling approach was adopted which resulted in data collection from 239 respondents and the SERVQUAL measurement tool underpinned the quality of service delivery assessment. To this end, this study revealed that PHC service utilizers were not satisfied with the quality of service in terms of any of the dimensions assessed (assurance, reliability, tangibles, empathy and responsiveness). Patients were particularly dissatisfied in terms of tangibles, reliability and assurance. In addition, the study found that tangibles, assurance, reliability and empathy have a significant relationship with patient satisfaction. The study concludes that PHC service providers need to pay particular attention to the gaps in order to deliver high service quality and improve overall patient satisfaction. This can be achieved by the provision of modern equipment, employment of more staff for prompt service delivery and training of existing health personnel to deliver better services.

The main purpose of this study is to assess the role of tertiary institutions in impacting innovation competence among graduating students in the engineering discipline. To achieve this aim, two research questions were investigated: First, we examine if the graduating students possess some key innovative competence qualities innovative competence which include qualities such as creativity, leadership, self-efficacy, energy and risk propensity. Secondly, we investigate the key elements of tertiary institutions that impact innovative competence among the graduating students. A structured questionnaire was administered to graduating engineering students at the Federal University of Technology Akure, Nigeria and University of Johannesburg, South Africa during the 2019/2020 academic session and their responses were compared. Results indicate that students generally had a high assessment of their innovation competence and attributed some of this competence to their institutions learning environment.