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Article
Publication date: 6 June 2022

Abdullahi Mohammed Usman and Kamil Abdullah

The purpose of this study is to develop a set of parameters universally acceptable for assessing design and construction strategies for reducing operational energy usage and its…

Abstract

Purpose

The purpose of this study is to develop a set of parameters universally acceptable for assessing design and construction strategies for reducing operational energy usage and its associated greenhouse gas (GHG) emission. Also, the parameters are intended to estimate the quantity of energy and its associated GHG emission reduction over the assessment period.

Design/methodology/approach

This study used five steps framework comprising definition of purpose, selecting the candidate parameters, criteria selection and description, selecting proposed parameters and defining the proposed parameters. The criteria used were the parameter’s prevalence, measurability, preference and feasibility toward adaptability to the relevant stakeholders.

Findings

This study consolidated 11 parameters. Seven cover designs and construction strategies comprising energy monitoring, natural lighting and ventilation design. Others are building thermal performance, efficient equipments, renewable energy and energy policy. The remaining four consider operational energy consumption, GHG emission quantification and their reduction over time.

Practical implications

Providing suitable indicators for assessing direct and indirect GHG emission with easily accessible data is essential for assessing built environment. The consolidated parameters can be used in developing rating systems, monitoring GHG inventories and activities of building related industries.

Originality/value

This study was conducted at the CEIES UTHM and used 11 existing rating systems open for research purposes, International Panel for Climate Change reports and GHG protocol report and guides and several other standards.

Details

Journal of Engineering, Design and Technology , vol. 22 no. 4
Type: Research Article
ISSN: 1726-0531

Keywords

Open Access
Article
Publication date: 1 June 2022

Kamil Abdullah and Abdullahi Mohammed Usman

The purpose of the study is to consolidate a set of indicators for assessing design and construction phase strategies for reducing operational greenhouse gas (GHG) emission. They…

1107

Abstract

Purpose

The purpose of the study is to consolidate a set of indicators for assessing design and construction phase strategies for reducing operational greenhouse gas (GHG) emission. They will also estimate the quantity of operational GHG emission and its associated reduction over assessment period.

Design/methodology/approach

Five steps framework adopted include defining the purpose of the indicators and selection of candidate indicators. Others are defining the criteria for indicator selection, selecting and defining the proposed indicators. Relevancy, measurability, prevalence, preference, feasibility and adaptability of the indicator were the criteria used for selecting the indicators.

Findings

The study consolidated public transport accessibility, sustainable parking space, green vehicle priority, proximity to amenities and alternative modes as indicators for design and construction phase strategies. Transportation accounting and carbon footprint (CFP) and their associated reduction are indicators for operational GHG emission while plan and policy is an indicator for policymakers and stakeholders.

Practical implications

The study shows that providing correct indicators for assessing direct and indirect GHG emission with easy to obtain data is essential for assessment of built environment. Stakeholder can use the indicators in developing new rating systems and researchers as an additional knowledge. Policy makers and stakeholders can use the study in monitoring and rewarding the sustainability and activities of building related industries and organisations.

Originality/value

The study was conducted at the Center for Energy and Industrial Environmental Studies (CEIES) Universiti Tun Hussein Onn Malaysia and utilises existing rating systems and tools, Intergovernmental Panel on Climate Change (IPCC) and GHG protocol reports and guides and several other standards, which are open for research.

Details

Frontiers in Engineering and Built Environment, vol. 2 no. 3
Type: Research Article
ISSN: 2634-2499

Keywords

Open Access
Article
Publication date: 10 October 2022

Abdullahi Mohammed Usman

The purpose of the study is to analyse municipal solid waste (MSW) disposed of in Jimeta-Yola metropolis for landfill gas (LFG), methane and project viability potential.

1261

Abstract

Purpose

The purpose of the study is to analyse municipal solid waste (MSW) disposed of in Jimeta-Yola metropolis for landfill gas (LFG), methane and project viability potential.

Design/methodology/approach

The data was collected daily from landfills for four weeks. About 7,329.55 Mg/year of waste was analysed. These waste were separated into bio-degradable components i.e. paper and textile (263.66 Mg), non-food organic (681.45 Mg), wood and straw (189.50 Mg) and food and kitchen waste (1797.20 Mg). Non-degradable components include plastics, polythene bags, metals, sand, stones, cans etc. (4397.73 Mg). The component's characteristics such as a number of samples, weight, volume, landfill age etc. were measured. The waste, methane (CH4) and energy potential were also analysed using LFG energy cost model.

Findings

The landfills received 15 Gg/year of MSW and emit 0.31 Gg/year of LFG having CH4 content of 82.95 Mg in 2016. These can produce 33.78 GWh of heat energy equivalent to 10.14 GWh of electricity analytically. Therefore, between 2016 and 2022, about 2.24 Gg CH4 and 5201.32 MWh of electricity were wasted. Henceforth, proper management of these waste substances can produce 186.4 Gg CH4 which will generate 432.52 GWh of electricity. The most economically viable project is an electricity project generating 418 kW/year at a sale price of $1.14/kWh (58.38/kWh) and a payback period of 11 years.

Practical implications

Raw LFG collected can be used in heating brick kilns, boilers, furnaces and greenhouses. When treated, the LFG can produce renewable natural gas (RNG), which is used in energy generation and various domestic, vehicle and industrial applications.

Social implications

The analytical energy generation can provide gross revenue of ₦19.46bn at an average of ₦192.71million/year. Using Landfill Gas Emissions Model (LandGEM) model, the gross and net revenue will be $0.42m and $0.28m yearly, respectively. The project can provide jobs and economic boost to the immediate community through associated ripple effect.

Originality/value

The research is a pre-feasibility study for LFG to gas or electricity projects in Jimeta-Yola. The study contributed to the body of knowledge as a source of literature for further studies locally and globally.

Details

Frontiers in Engineering and Built Environment, vol. 2 no. 4
Type: Research Article
ISSN: 2634-2499

Keywords

Article
Publication date: 10 June 2022

Mohammed Sani Abdullahi, Adams Adeiza, Fadi Abdelfattah, Mobin Fatma, Olawole Fawehinmi and Osaro Aigbogun

The purpose of this paper is to investigate the effect of talent management (TM) practices on employee performance (EP) and to explore the mediating role of employee engagement…

1690

Abstract

Purpose

The purpose of this paper is to investigate the effect of talent management (TM) practices on employee performance (EP) and to explore the mediating role of employee engagement (EE) on the relationship between TM practices and EP in Malaysian private universities (MPUs).

Design/methodology/approach

The paper used both descriptive and quantitative approaches, and the unit of analysis of this research consists of MPUs academic staff. The research sample consists of 314 MPUs academic staff, and a questionnaire was used to collect data from the target respondents, while partial least squares-structural equation modelling was used to evaluate the study hypotheses through bootstrapping approach.

Findings

The research outcome revealed that TM practices that comprise of talent recruitment practice (TRP), training and development practice (T&DP), compensation practice (CP) have a significant effect on EP. Furthermore, EE partially mediates the relationship between T&DP, CP and EP, while EE does not mediate the relationship between TRP and EP in MPUs.

Practical implications

The research suggests that universities management should focus on TM practices as a tool to achieve and maintain EE and positive attitudes (EP) in relation to work.

Originality/value

The research makes substantial contributions to the literature by investigating the effect of TM practices on EP through the role of EE as mediation in MPUs. The research is one of the very few studies undertaken in MPUs. Therefore, the results of this research serve as a guide for the universities management to develop their institutional strategies and policies in a manner in which their employees’ success can be achieved and encouraged.International Journal of Business and Society.

Article
Publication date: 31 December 2020

Mohammed Sani Abdullahi, Kavitha Raman and Sakiru Adebola Solarin

The aim of this paper is to examine the effect of talent management (TM) practices on employee performance (EP) among academic staff of Malaysian private universities (MPU…

1058

Abstract

Purpose

The aim of this paper is to examine the effect of talent management (TM) practices on employee performance (EP) among academic staff of Malaysian private universities (MPU) through employee engagement (EE).

Design/methodology/approach

This paper used both descriptive and quantitative approaches, while the research unit of analysis consists of MPU academic staff. A simple random and stratified sampling approach was utilized in this study while, the research sample consists of 314 MPU academic staff. A questionnaire was used to collect data from the target population, while partial least squares–structural equation modeling was used to evaluate the study hypotheses through a bootstrapping approach.

Findings

This paper results demonstrated that TM practices (succession planning practice, promotion practice and performance appraisal practice) have a significant effect on EP, while EE mediates the relationship between TM practices and EP in MPU.

Practical implications

This paper encourages university management to adopt and invest in TM practices for effective EE to achieve and sustain EP.

Originality/value

This paper has made a significant contribution to knowledge and to the operationalization of EE, EP and TM practices literature, which could help to develop theory, model, practice and research in areas of work performance.

Details

Journal of Applied Research in Higher Education, vol. 14 no. 1
Type: Research Article
ISSN: 2050-7003

Keywords

Article
Publication date: 12 July 2024

Mohammed Sani Abdullahi, Adams Adieza, Marina Arnaut, Muhammad Shaheer Nuhu, Waqas Ali and Zainab Lawal Gwadabe

The goal of this paper is to investigate the antecedent of employee performance (EP) through perceived organizational support (POS), as well as the moderating role of job…

26

Abstract

Purpose

The goal of this paper is to investigate the antecedent of employee performance (EP) through perceived organizational support (POS), as well as the moderating role of job satisfaction (JS) on the connection between POS and EP among employees of small and medium enterprises (SMEs) in Northwest Nigeria, using social exchange theory (SET) and organizational support theory (OST).

Design/methodology/approach

This research employed a survey design, using SMEs employees in Northwest Nigeria as the research unit of analysis. Purposive sampling was used in this research, with standardized questionnaires used to obtain data from 1750 employees of the targeted SMEs within the region. This study’s hypotheses were tested using partial least square–structural equation modeling (PLS-SEM).

Findings

The findings of this research stated that POS has a substantial effect on EP, while JS moderates the association between POS and EP.

Practical implications

The study offers practical insights for SMEs in Northwest Nigeria, aiding in resolving employee issues and providing actionable strategies for management. Understanding the dynamics of perceived organizational support, job satisfaction and employee performance enables proactive measures to improve organizational effectiveness, fostering a positive work environment and enhancing competitive edge.

Originality/value

This study innovates existing literature by exploring how perceived organizational support affects employee performance in small and medium-sized enterprises in an emerging economy. It introduces PLS-SEM, emphasizing job satisfaction’s pivotal role as a moderator. This provides valuable guidance for SMEs to boost employee performance and formulate effective HR strategies, advancing organizational behavior and management research.

Details

Journal of Organizational Effectiveness: People and Performance, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2051-6614

Keywords

Open Access
Article
Publication date: 7 November 2018

Chinedu Francis Egbunike and Chinedu Uchenna Okerekeoti

The purpose of this paper is to explore the interrelationship between macroeconomic factors, firm characteristics and financial performance of quoted manufacturing firms in…

53813

Abstract

Purpose

The purpose of this paper is to explore the interrelationship between macroeconomic factors, firm characteristics and financial performance of quoted manufacturing firms in Nigeria. Specifically, the study investigates the effect of interest rate, inflation rate, exchange rate and the gross domestic product (GDP) growth rate, while the firm characteristics were size, leverage and liquidity. The dependent variable financial performance is measured as return on assets (ROA).

Design/methodology/approach

The study used the ex post facto research design. The population comprised all quoted manufacturing firms on the Nigerian Stock Exchange. The sample was restricted to companies in the consumer goods sector, selected using non-probability sampling method. The study used multiple linear regression as the method of validating the hypotheses.

Findings

The study finds no significant effect for interest rate and exchange rate, but a significant effect for inflation rate and GDP growth rate on ROA. Second, the firm characteristics showed that firm size, leverage and liquidity were significant.

Practical implications

The study has implications for regulators and policy makers in formulating policy decisions. In addition, managers may better understand the interplay between macroeconomic factors, firm characteristics and profitability of firms.

Originality/value

Few studies have addressed the interplay of macroeconomic factors and firm characteristics in determining the profitability of manufacturing firms in the country and developing countries in general.

Details

Asian Journal of Accounting Research, vol. 3 no. 2
Type: Research Article
ISSN: 2443-4175

Keywords

Article
Publication date: 29 April 2021

Mohammed Sani Abdullahi, Kavitha Raman and Sakiru Adebola Solarin

The purpose of this study is to examine the effect of succession planning practice (SPP) on employee engagement (EE) and employee performance (EP) in Malaysian private…

Abstract

Purpose

The purpose of this study is to examine the effect of succession planning practice (SPP) on employee engagement (EE) and employee performance (EP) in Malaysian private universities (MPU).

Design/methodology/approach

This paper used a survey research design, and the study unit of the analysis consists of the academic staff of MPU. In the selection of the sample from the focused respondents (10,473) of the study, a stratified and simple random sampling method was used, and the study sample consists of 314 MPU academic staff. A questionnaire was used to collect data from the focused respondents while partial least square–structural equation modeling (PLS-SEM) was used to test the study hypotheses.

Findings

The findings revealed that SPP has a significant effect on EP, and the relationship between SPP and EP is partially mediated by EE.

Practical implications

Sound succession systems for achieving academic staff performance should be put in place by the university management. Furthermore, the outcome of this research urges the policymaker to come up with a sound policy that can allow internal talents of the university to hold key leadership positions of any nature when the need arises before considering external talents, with that the talents will be satisfied and put decisive effort to achieve a positive result.

Originality/value

This paper has made a significant contribution to the knowledge and operationalization of the EE, EP and SPP literature. The research also assists the university management to mobilize qualified and talented staff for an unexpected and sudden resignation of staff which saves the university the cost of hiring and development, and at the same time, it encourages internal hiring.

Details

Journal of Applied Research in Higher Education, vol. 14 no. 2
Type: Research Article
ISSN: 2050-7003

Keywords

Article
Publication date: 14 May 2018

Shafiu Ibrahim Abdullahi

The purpose of the study is to explore contributions made in Islamic economics methodology, particularly in the use of mathematical models used to build Islamic economic theories.

Abstract

Purpose

The purpose of the study is to explore contributions made in Islamic economics methodology, particularly in the use of mathematical models used to build Islamic economic theories.

Design/methodology/approach

The methodology adopted is a survey by means of literature review.

Findings

Overuse of mathematical models in economics has it apparent weakness in simplifying complex realities and use of impracticable assumptions. But, that notwithstanding, they have a role to play in the development of Islamic economics. Empirical analysis in Islamic economics has weaknesses, including the very fact that moral phenomenon in Islamic economics is difficult to quantify, but its contribution, just like mathematics, is needed to develop the field. Islamic economics adopt mathematical models that do not cause obstacles in achieving the aim of Islamic economics, which is Falah. Where it is harmful, it is discarded. Islamic economics has yet to have a universally accepted research methodology; instead, numerous methodologies are used today. The poor use of mathematics in Islamic economics by new researchers, among other factors, may be due to young researchers’ poor background in mathematics.

Originality/value

The paper is unique in looking at the topic of Islamic economic methodology from the angle of application of mathematical models.

Details

International Journal of Ethics and Systems, vol. 34 no. 2
Type: Research Article
ISSN: 0828-8666

Keywords

Article
Publication date: 3 October 2016

Akume T. Albert and F.C. Okoli

This paper aims to assess if the Economic and Financial Crimes Commission (EFCC) has been effective in combating corruption in Nigeria from 2003-2012.

Abstract

Purpose

This paper aims to assess if the Economic and Financial Crimes Commission (EFCC) has been effective in combating corruption in Nigeria from 2003-2012.

Design/methodology/approach

The paper adopted a documentary analytical approach.

Findings

The organization has not been effective in combating corruption in Nigeria.

Research limitations/implications

The study is between 2003-2012.

Practical implications

There is a need to correct those identified inhibitors that undermined the Commission’s capacity, such as intrusive government interference, lack of autonomy, poor funding and weak laws, among others, to mitigate corruption.

Social implications

Eliminating those identified constraints will remove the incentive to be corrupt, thereby curbing the desire to be corrupt.

Originality/value

This paper is an original assessment of the EFCC's effectiveness in combating corruption in Nigeria during the specified period.

Details

Journal of Financial Crime, vol. 23 no. 4
Type: Research Article
ISSN: 1359-0790

Keywords

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