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The purpose of this paper is to contribute to the emerging theory of ambidexterity by developing measures to assess employee ambidexterity. Specifically, it identifies and tests the importance of the relationship between the organisational context and employee ambidexterity within small and medium enterprises (SMEs).

The research used a survey method to investigate SMEs in Nigeria. Two hundred SMEs were selected from across Nigeria to participate in the study and 72 companies responded, representing a 36 per cent response rate. The study sample comprised 398 shop-floor employees from 72 small and medium-sized manufacturing and service organisations.

The paper tests a model that sheds insight into the linkages between the organisational context, employee ambidexterity and employee engagement. Specifically, the model portrays significant relationships that exist between organisational context, employee ambidexterity and employee engagement. The results show that understanding the appropriate organisational contexts improves employee ambidexterity. Therefore, SMEs with the appropriate organisational contexts for employee ambidexterity and employee engagement will increase their potential for growth and survival.

The paper develops a conceptual model of the organisational context that improves employee ambidexterity and employee engagement.

The purpose of this paper is twofold: first, it aims to investigate how salt and sugar reduction in foods due to the pressure from the emerging food regulations will affect the physico-electrical properties (PEPs) of orange juice and tomatoes during a selected PEP-dependent thermal processing. Second, the authors are keen to understand how variations in salt and sugar ingredients will affect the time-temperature processing requirements.

PEPs of the samples (orange juice and tomatoes) were measured using the KD2 thermal analyser and RS conductivity metre. Both samples with varying salt and sugar levels were subjected to ohmic heating processing using a 10 kW ohmic heater. Dehydration rates and processing times for pasteurisation were obtained.

Electrical conductivity increases with added salt in tomato puree but decreases with added sugar in orange juice. Statistical evidence confirmed significant changes in heating rates and processing times of tomatoes and orange juice as their relevant salt and sugar levels change. Reduction in salt content in tomato puree led to increase in time and energy for the thermal processes. While reduction in added sugar in orange juice results led to reduction in processing time and energy requirement for the processing operation.

The study is limited to small change in salt and sugar variations in order to reflect recommended limits. There were therefore no significant changes in thermal conductivity for the range investigated. Also this study is focussed on two food products.

Current pressure on the need to reduce salt and sugar in foods necessitates research to increase food processing industry insight into the process and product impacts of such recipe changes, with particular regard to processing efficiency and product safety and quality.

This study represents an attempt to understand the impact of salt and sugar variations on properties and processing requirements of tomato puree and orange juice.

The effect of COVID-19 has undoubtedly left a vacuum in all sectors of the economy in the world, and this is the case especially in the hospitality sector in Nigeria. This vacuum has dealt negatively with the huge investment in the industry to the extent that all stakeholders are at cross-roads on the way out of the predicament. This therefore calls for strategic thinking among the stakeholders in order to reposition the industry to regain its lost trust occasioned by the pandemic. The year 2020 was declared as the worst year in tourism industry, and with the significance of the industry to the well-being of the people across nations, ‘out of the box’ solutions are required to reposition the industry for maximum effectiveness to regain its lost glory. Hence, the question: Can innovative thinking enhance hospitality industry recovery in Nigeria and will new product development reposition the industry? The outcome of the study will be of benefit to the industry stakeholders. Hospitality industry recovery will increase the revenue of Government, touch positively on customers’ emotions who lost loved ones during the pandemic as patronage increases and put smiles on investors' faces as a result of higher returns. The study reviews relevant literature and interviewed stakeholders in the industry. It x-rays the challenges, proffers innovative solutions, such as development of offerings that touch people's emotions, embarks on facility upgrade and makes recommendations that will re-brand the hospitality industry, so that it can better appeal to the customers coupled with safety and security measures.

In the absence of continuously traded, deep and securitised markets, commercial property valuations perform a vital function in the property market by acting as a surrogate for transaction prices. The ability of valuers to make effective estimation of value is therefore a vital issue in commercial property market. The purpose of this paper is to examine the effects of valuation variance and inaccuracy on Nigerian commercial property market.

Questionnaires were used in collecting data from 163 randomly selected estate surveying and valuation firms in Lagos Metropolis with a record of over 60 per cent of the total population of estate surveying and valuation firms in Nigeria. Both descriptive and inferential statistics were used to analyse the data collected.

The results revealed that valuation variance and inaccuracy causes fluctuation in the price of property, sending wrong signal to the market participants and jeopardising the future of commercial property market. It also, exposed valuers to negligence liability, loss of valuers’ credibility and reduction of valuers’ integrity.

The paper concluded that quality data bank system is needed to obtain accurate comparables which are the cornerstone of market valuation. Also, surveyors in the academia should revisit the techniques they have developed with a view to replacing or modifying them into a format that are easy to use by practitioners. The findings of the study will be of importance to estate surveyors and valuers, estate surveying and valuation firms, government agencies in charge of property taxes as well as investors in commercial properties.

The paper is one of the few attempts at examining valuation variance and accuracy in Nigeria. This paper examined the effect of valuation variance and accuracy on Nigerian commercial property market.

The United Nations has demonstrated a commitment to preserving the ecosystem through its 2030 sustainable development goals agenda. One crucial objective of these goals is to promote a healthy ecosystem and discourage practices that harm it. Building materials production significantly contributes to the emissions of greenhouse gases. This poses a threat to the ecosystem and prompts a growing demand for sustainable building materials (SBMs). The purpose of this study is to investigate SBMs to determine their utilization in construction operations and the potential impact their application could have on construction productivity.

A systematic review of the existing literature in the field of SBMs was conducted for the study. The search strings used were “sustainable” AND (“building” OR “construction”) AND “materials” AND “productivity”. A total of 146 articles were obtained from the Scopus database and reviewed.

Bio-based, cementitious and phase change materials were the main categories of SBMs. Materials in these categories have the potential to substantially contribute to sustainability in the construction sector. However, challenges such as availability, cost, expertise, awareness, social acceptance and resistance to innovation must be addressed to promote the increased utilization of SBMs and enhance construction productivity.

Many studies have explored SBMs, but there is a dearth of studies that address productivity in the context of SBMs, which leaves a gap in understanding. This study addresses this gap by drawing on existing studies to determine the potential implications that using SBMs could have on construction productivity.

Despite an enormous body of literature on conflict management, intra-group conflicts vis-à-vis team performance, there is currently no study investigating the conflict prevention approach to handling innovation-induced conflicts that may hinder smooth implementation of big data technology in project teams.

This study uses constructs from conflict theory, and team power relations to develop an explanatory framework. The study proceeded to formulate theoretical hypotheses from task-conflict, process-conflict, relationship and team power conflict. The hypotheses were tested using Partial Least Square Structural Equation Model (PLS-SEM) to understand key preventive measures that can encourage conflict prevention in project teams when implementing big data technology.

Results from the structural model validated six out of seven theoretical hypotheses and identified Relationship Conflict Prevention as the most important factor for promoting smooth implementation of Big Data Analytics technology in project teams. This is followed by power-conflict prevention, prevention of task disputes and prevention of Process conflicts respectively. Results also show that relationship and power conflicts interact on the one hand, while task and relationship conflict prevention also interact on the other hand, thus, suggesting the prevention of one of the conflicts could minimise the outbreak of the other.

The study has been conducted within the context of big data adoption in a project-based work environment and the need to prevent innovation-induced conflicts in teams. Similarly, the research participants examined are stakeholders within UK projected-based organisations.

The study urges organisations wishing to embrace big data innovation to evolve a multipronged approach for facilitating smooth implementation through prevention of conflicts among project frontlines. This study urges organisations to anticipate both subtle and overt frictions that can undermine relationships and team dynamics, effective task performance, derail processes and create unhealthy rivalry that undermines cooperation and collaboration in the team.

The study also addresses the uncertainty and disruption that big data technology presents to employees in teams and explore conflict prevention measure which can be used to mitigate such in project teams.

The study proposes a Structural Model for establishing conflict prevention strategies in project teams through a multidimensional framework that combines constructs like team power conflict, process, relationship and task conflicts; to encourage Big Data implementation.

The application of hybrid renewable energy system (HRES) can mitigate inadequate access to clean, stable and sustainable energy among households in sub-Saharan Africa (SSA). Available studies on HRES seem to concentrate only on its techno-economic and environmental viability. In so doing, these studies do not seem to underline the likely challenges that follow the acquisition of HRES by especially low-income households. The ensuing reality is, of course, a limitation in the use of HRES in homes with low incomes. It is therefore imperative to analyze how a household with low income can afford this kind of energy system. The purpose of this study, therefore, lies in presenting a techno-economic, environmental and affordability analysis of how HRES is acquired.

To arrive at a grounded analysis, a typical household in SSA is used as an example. The analysis focused on the pattern of energy use, and this is obtained by visiting an active site to evaluate the comprehensive load profile. In the course of analysis, an optimal techno-economic design and sizing of a hybrid PV, wind and battery were undertaken. Additionally, an acquisition analysis was done based on loan amortization.

The interesting result is that a combination of the photovoltaic-gasoline-battery system is the most cost-effective energy system with a net present cost of $2,682. The system combination can lead to an emission reduction of approximately 98.3 per cent, compared to the use of gasoline generating sets, common mostly in SSA. If an amortized loan is used to purchase the energy system, and the payment plan is varied such that the frequency of payments is made quarterly, annually, semi-annually, bi-monthly, semi-monthly and bi-weekly, it will be observed that low-income household can conveniently acquire a HRES.

The result presented a framework by which a low-income household can purchase and install HRES. To facilitate this, it is recommended that low-income households should be given interest-friendly loans, so as to enhance the acquisition of HRES.