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Article
Publication date: 18 November 2021

Naveed Mazhar, Fahad Mumtaz Malik, Raja Amer Azim, Abid Raza, Rameez Khan and Qasim Umar Khan

The purpose of this study is to provide the full-state mathematical model and devise a nonlinear controller for a balloon-supported unmanned aerial vehicle (BUAV).

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Abstract

Purpose

The purpose of this study is to provide the full-state mathematical model and devise a nonlinear controller for a balloon-supported unmanned aerial vehicle (BUAV).

Design/methodology/approach

Newtonian mechanics is used to establish the nonlinear mathematical model of the proposed vehicle assembly which incorporates the dynamics of both balloon and quadrotor UAV. A controllable form of the nine degrees of freedom model is derived. Backstepping control is designed for the proposed model and simulations are performed to assess the tracking performance of the proposed control.

Findings

The results show that the proposed methodology works well for smooth trajectories in presence of wind gusts. Moreover, the final mathematical model is affine and various nonlinear control techniques can be used in the future for improved system performance.

Originality/value

Multi-rotor unmanned aerial vehicles (MUAVs) are equipped with controllers but are constrained by smaller flight endurance and payload carrying capability. On the contrary, lighter than air (LTA) aerial vehicles have longer flight times but have poor control performance for outdoor operations. One of the solutions to achieve better flight endurance and payload carrying capability is to augment the LTA balloon to MUAV. The novelty of this research lies in full-order mathematical modeling along with transformation to controllable form for the BUAV assembly.

Details

Assembly Automation, vol. 42 no. 1
Type: Research Article
ISSN: 0144-5154

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Article
Publication date: 25 October 2022

Mosab I. Tabash, Umar Farooq, Ghaleb A. El Refae and Amer Qasim

The present study aims to investigate the validity of the Environmental Kuznets Curve (EKC) by exploring the role of various economic factors including economic development…

262

Abstract

Purpose

The present study aims to investigate the validity of the Environmental Kuznets Curve (EKC) by exploring the role of various economic factors including economic development, foreign investment, human capital, energy dependency, financial development (FD), etc., in CO2 emissions.

Design/methodology/approach

For empirical analysis, the samples for the years 2001–2019 of six GCC region countries that apply the fully modified ordinary least squares model were utilized.

Findings

The statistical results show that economic development, foreign investment, energy dependency, human capital and oil rents have a direct impact on CO2 emissions, whereas trade liberalization and FD have an indirect impact. Nonetheless, the empirical analysis rejects the EKC hypothesis in the set of GCC region countries. The empirical findings in connection to the basic premises of the EKC model are found to be statistically constant for the linear relationship. The GCC region is rigid regarding CO2 emission because of its reliance on main energy sources like oil and gas.

Research limitations/implications

The current analysis directs the policy recommendations about environmental sustainability to environmental economists and other policymakers. The development of such policy instruments as the adoption of contemporary technology and reduced reliance on fossil fuels is advised to mitigate the negative externalities of multiple economic factors. Similarly, future studies should focus on trade liberalization and FD, both of which have a declining trend in CO2 emissions.

Originality/value

The present study is innovative by means of testing the EKC model and exploring how other factors related to CO2 emissions in the GCC region.

Details

Management of Environmental Quality: An International Journal, vol. 34 no. 2
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 1 April 1998

Muhammad Ramzan Akhtar

The Prophet Muhammad (pbuh) laid the foundations of the Islamic state in Medina in 622 A.D. The state expanded gradually during the 10‐year rule of the Prophet (pbuh). The Arabian…

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Abstract

The Prophet Muhammad (pbuh) laid the foundations of the Islamic state in Medina in 622 A.D. The state expanded gradually during the 10‐year rule of the Prophet (pbuh). The Arabian Peninsula and Southern Palestine were conquered during that period. The state expanded enormously during the reign of Umar (RA). Many countries of the Roman and Persian empires comprising an area of more than 2.2 million were annexed. Historians have noted that this framework played a vital role in integrating these people which in turn strengthened the state.

Details

Humanomics, vol. 14 no. 4
Type: Research Article
ISSN: 0828-8666

Available. Open Access. Open Access
Article
Publication date: 25 August 2023

Michela Cesarina Mason, Stephen Oduro, Rana Muhammad Umar and Gioele Zamparo

The purpose of this study is to clarify the findings and criticisms in the extant literature concerning the theory of consumption values (TCV) by conducting a meta-analysis to (1…

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Abstract

Purpose

The purpose of this study is to clarify the findings and criticisms in the extant literature concerning the theory of consumption values (TCV) by conducting a meta-analysis to (1) examine the extent to which consumption values influence consumer behavior and (2) to explore contextual and methodological factors that may account for between-study variance in the focal relationship.

Design/methodology/approach

The study employs a random-effects model and psychometric meta-analysis approach to examine 82 studies with 297 effect sizes in 34 countries between 1991 and 2022, inclusive.

Findings

Results reveal that consumption values have a positive significant and moderate effect on consumer behavior. Moreover, emotional value is the most influential predictor of consumer behavior, while social value is the weakest. Furthermore, the study's findings show that some contextual and methodological factors moderate the relationship between consumption values and consumer behavior.

Practical implications

The findings highlight that managers can work on consumption values to prompt positive consumer responses like attitude, intention, satisfaction and overall value perception. However, managers must consider that the relevance of the consumption values depends significantly on the outcome variable and the context, which calls for a tailored-made marketing strategy to appeal to consumers' diverse needs and wants.

Originality/value

Besides providing empirical evidence of the broad validity of the TCV, this study is the first meta-analytic review of the TCV, which integrates several insights to provide valuable research directions for future researchers and insightful implications for practitioners.

Details

Marketing Intelligence & Planning, vol. 41 no. 7
Type: Research Article
ISSN: 0263-4503

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Article
Publication date: 15 May 2024

Umar Lawal Dano

This study aims to explore and analyze the disparities in the distribution of housing types and characteristics among households in Saudi Arabia, taking into consideration the…

73

Abstract

Purpose

This study aims to explore and analyze the disparities in the distribution of housing types and characteristics among households in Saudi Arabia, taking into consideration the regional perspective.

Design/methodology/approach

This study uses quantitative data obtained from the General Authority for Statistics, specifically from the Saudi 2022 Statistical Census. The data were analyzed using descriptive statistics (percentages) as well as inferential statistics, including correlation analysis (Pearson correlation) and t-tests.

Findings

The study found a distinct preference among Saudis for villas, with 85.3% choosing this housing type, while only 14.7% of non-Saudis opted for villas. The statistical analysis confirmed the significance of housing type for Saudi citizens (t = 2.561, p = 0.037), while non-Saudis did not show a statistically significant preference (t = 1.703, p = 0.132). The Pearson correlation results revealed a moderate positive correlation (r = 0.641, p = 0.009) between regional landmass and the number of houses, and a very strong positive relationship (r = 0.984) between population and the number of houses across the 13 regions. As expected, with increasing population, there was a significant increase in the number of houses (p = 0.001).

Originality/value

This study fills a research gap by investigating regional disparities in housing characteristics in Saudi Arabia. The findings are valuable for policymakers, housing developers and the housing market in understanding these disparities. The insights from this research can inform decision-making to promote equitable access to housing types and foster social inclusivity in the housing sector.

Details

International Journal of Housing Markets and Analysis, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1753-8270

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Article
Publication date: 13 February 2017

Nadia Naim

The purpose of this paper is to examine the transatlantic trade and investment partnership (TTIP). The EU and the USA are negotiating the TTIP, a trade agreement that aims to…

297

Abstract

Purpose

The purpose of this paper is to examine the transatlantic trade and investment partnership (TTIP). The EU and the USA are negotiating the TTIP, a trade agreement that aims to remove trade barriers across different economic sectors to increase trade between the EU and the USA. The TTIP will have spill over effects on the MENA region, the GCC, Australia and the Asian sub-continent, as it raises key questions for intellectual property and international trade agreements. For instance, will the USA and EU be on an equal footing or will one triumph over the other, will third party countries like the GCC states be expected to adopt new standards.

Design/methodology/approach

The research design is a paper and online data collection method to find literature to date on intellectual property law development in the GCC states in relation to the three research objectives as set out above. The literature is the population, and this could prove problematic. Different databases have been used to cover all sources where data can be found.

Findings

As the EU-USA TTIP is aiming to conclude by the end of 2015, the GCC has an opportunity to reassess its relationship with both the EU and GCC. Up until now, the GCC was able to enter into negotiations with the EU and USA relatively independently. However, where the EU and USA can agree, there will be a harmonisation of regulations. This therefore has repercussions for the GCC. The TTIP has three main aims: to increase trade and investment through market access, increase employment and competitiveness and create a harmonised approach to global trade. To harmonise global trade, the EU and USA aim to harmonise their intellectual property rights through an intellectual property rights chapter that deals specifically with enhancing protection and recognition for geographical indications, build on TRIPS and patentability.

Research limitations/implications

This study is non-empirical.

Originality/value

The TTIP will have spill over effects for the GCC, as it has yet to finalise the EU-GCC free trade agreement and USA-GCC framework agreement. The power dynamics between the USA and EU will be a deciding factor on the intellectual property chapter in the TTIP in terms of what the provisions for intellectual property will look like and what powers will be available to investors to bring investor-state-dispute settlement claims against foreign countries.

Details

International Journal of Law and Management, vol. 59 no. 1
Type: Research Article
ISSN: 1754-243X

Keywords

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Article
Publication date: 1 July 2024

Nasiru Zubairu, Ahmed Mohammed and Zeinab Zohny

Despite the increasing demand for renewable energy (RE) as a low-carbon energy source, the transition to RE is very slow in many regions, including Oman, the case country for this…

108

Abstract

Purpose

Despite the increasing demand for renewable energy (RE) as a low-carbon energy source, the transition to RE is very slow in many regions, including Oman, the case country for this study. It is critical to offer strategic insights to energy supply chain participants towards the sustainable transition to renewable energy (STRE). The purpose of this study is to identify viable RE sources in Oman as a case study of a GCC member country, develop a comprehensive framework of STRE, and suggest future research opportunities.

Design/methodology/approach

The paper addressed this problem through a country/regional study of Oman by conducting a systematic literature review (SLR) of RE-related peer-reviewed publications spanning over 21 years from January 2000 to February 2021. The qualifying articles are evaluated using template analysis qualitatively to identify viable renewable energy sources, build a holistic framework of STRE and recommend future research opportunities.

Findings

Findings confirm the potential of solar, wind, biomass and geothermal energies driven by environmental, economic and social sustainability concerns. However, results suggest that to fast-track the STRE, more emphasis should be accorded to solar and wind energies owing to the geographical composition of Oman. Findings reveal that policies and regulations, advanced and cost-effective technologies, subsidy regimes, grid connectivity and capacity, storage capacity and land availability influence the STRE. Gaps in the literature are identified from the results to clarify and suggest future research opportunities.

Originality/value

To the best of the authors’ knowledge, this is the first study that conducted an SLR that was evaluated using the template analysis technique to build a novel and updated framework that facilitates a crystalline understanding of STRE to guide policymakers and professionals in strategic decision-making.

Details

Management of Environmental Quality: An International Journal, vol. 35 no. 8
Type: Research Article
ISSN: 1477-7835

Keywords

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Article
Publication date: 13 May 2020

Md Akther Uddin and Abu Umar Faruq Ahmad

This paper aims to compare and contrast the concept of conventional futures contract from the Islamic law of contract perspectives. The underlying theory and practice of Islamic…

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Abstract

Purpose

This paper aims to compare and contrast the concept of conventional futures contract from the Islamic law of contract perspectives. The underlying theory and practice of Islamic finance is based on the principles of Islamic law of contract. Although the necessity of derivative instruments such as the case with futures contract is essential for developments in Islamic finance, the permissibility of using these instruments still remains a debatable issue.

Design/methodology/approach

The paper discusses arguments for and against using derivative instruments as in futures, for example, in light with the Qur’an and Sunnah (the Prophet’s traditions), as well as the views of classical scholars, jurists and contemporary researchers. Arguments for and against are analysed systematically to derive a logical conclusion.

Findings

The study finds that majority scholars consider futures contracts as non-compliant with the Islamic law due to the fact that selling something that does not exist, deferment in the both counter values, gharar or ambiguity and excessive risk taking, pure speculation and sale of one debt for another.

Research limitations/implications

The study focuses narrowly on conventional futures contract. Analysing other financial derivative contracts could be a future research endeavour.

Practical implications

The study has so far found the verdict of impermissibility of conventional futures contract in its current form as has been argued by majority scholars in the premise that they do not comply with the Islamic law. Policymakers and industry practitioners need to take this opinion of majority scholars while developing new Islamic financial derivatives.

Originality/value

To the best of the author's knowledge, the present research is the first attempt so far that explained the validity of conventional futures by analysing arguments of classical and contemporary jurists, scholars and researchers.

Details

International Journal of Law and Management, vol. 62 no. 4
Type: Research Article
ISSN: 1754-243X

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Article
Publication date: 10 May 2023

Sri Herianingrum, Indri Supriani, Raditya Sukmana, Effendie Effendie, Tika Widiastuti, Qudsi Fauzi and Atina Shofawati

This study aims to analyze the concept of Zakat as an instrument to increase the economy and poverty eradication in Indonesia.

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Abstract

Purpose

This study aims to analyze the concept of Zakat as an instrument to increase the economy and poverty eradication in Indonesia.

Design/methodology/approach

This study used a qualitative method based on library research sourced from books, financial reports and another previous research.

Findings

The results show that the empowerment programs conducted by Zakat institutions in Indonesia are based on the scale of priorities and the potential of Mustahik. Zakat management considers the level of productivity and long-term impacts that improve Mustahik Economy. Thus, the empowerment programs lead to the reduction of Mustahik living below poverty line.

Research limitations/implications

This study contributes in two ways: first, it analyzes a model to identify the Mustahik’s potential for the Zakat institution in Indonesia. Second, it encourages the awareness of Muzakki and Mustahik regarding the role of Zakat in the Indonesian economy. This is expected to prompt their level of participation in optimizing the potential of Zakat in Indonesia.

Originality/value

Given the scarce literature that provide qualitative and critical reviews of the implementation Zakat empowerment programs to alleviate poverty conducted by the Zakat institutions in Indonesia, this research can act as a bridge for future research in performing empirical studies regarding the impact of a Zakat empowerment program on society.

Details

Journal of Islamic Accounting and Business Research, vol. 15 no. 4
Type: Research Article
ISSN: 1759-0817

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Article
Publication date: 8 August 2024

Andi Syathir Sofyan, Ega Rusanti, Nurmiati Nurmiati, Syaakir Sofyan, Robert Kurniawan and Rezzy Eko Caraka

This study aims to determine research performance in Islamic business ethics and explore future research directions from leading articles and scholars.

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Abstract

Purpose

This study aims to determine research performance in Islamic business ethics and explore future research directions from leading articles and scholars.

Design/methodology/approach

This paper used bibliometric and content analysis to analyze 250 articles from reputable Scopus and Web of Sciences journals.

Findings

To date, the normative style still dominates Islamic business ethics research. Asian countries such as Malaysia and Indonesia are the center of discussion on Islamic business ethics. This study also suggests that researchers and academics study aspects of the economy that Islamic values have not touched, such as the theme of art, artificial intelligence for labor relations, workers' rights and language.

Research limitations/implications

This research aims to contribute knowledge to Muslims as a reference guide for ethical business behavior. Non-Muslim managers can use this paper as a guide in forming a global company that is pluralistic and respectful of religious communities.

Originality/value

This research makes a scholarly contribution by providing a comprehensive exploration and detailed future research directions in each subtheme of Islamic business ethics.

Details

International Journal of Ethics and Systems, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9369

Keywords

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