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1 – 10 of over 2000
Article
Publication date: 1 March 2017

Tengku Adil Tengku Izhar, Torab Torabi and M. Ishaq Bhatti

This paper is about gathering the measurement data and making an effectiveness results to assist decision-making process to evaluate the level of the organizational goals…

Abstract

This paper is about gathering the measurement data and making an effectiveness results to assist decision-making process to evaluate the level of the organizational goals achievement. In order to achieve this aim, we designed GOAL framework as a platform represents five steps for domain experts and entrepreneurs to identify the relevant organizational data to assist decision-making process in relation to the organizational goals. The aim of this paper concentrates on the design of this framework. GOAL framework associated with the organizational goals ontology aim to identify the dependency relationship between organizational goals and dependency relationship between organizational data and organizational goals. Metrics is defined for this dependency to identify which organizational data is relevant to the organizational goals. The framework is flexible to change without affecting things around because the framework is applicable in any organizational data with different organizational goals.

Details

International Journal of Organization Theory & Behavior, vol. 20 no. 2
Type: Research Article
ISSN: 1093-4537

Article
Publication date: 1 August 2003

Zakir Hossain and M. Ishaq Bhatti

This paper briefly introduces the concept of model selection, reviews recent development in the area of econometric analysis of model selection and addresses some of the crucial…

Abstract

This paper briefly introduces the concept of model selection, reviews recent development in the area of econometric analysis of model selection and addresses some of the crucial issues that are being faced by researchers in their routine research problems. The paper emphasizes on the importance of model selection, particularly the information criteria and penalty functions based model selection procedures which are useful for economists and finance researchers.

Details

Managerial Finance, vol. 29 no. 7
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 1 August 2004

Zakir Hossain, M. Ishaq Bhatti and Zulficar Ali

Recently, Bhatti and Khan considered various functional forms to see their suitability in terms of efficiency and competency in assessing production process based on agricultural…

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Abstract

Recently, Bhatti and Khan considered various functional forms to see their suitability in terms of efficiency and competency in assessing production process based on agricultural data. This paper reviews some models recently used in the literature and selects the most suitable one for measuring the production process of 21 major manufacturing industries in Bangladesh. In particular, the paper estimates and tests the coefficients of the production inputs for each of the selected manufacturing industries using Bangladesh Bureau of Statistics annual data over the period 1982‐1983 through 1991‐1992.

Details

Managerial Auditing Journal, vol. 19 no. 6
Type: Research Article
ISSN: 0268-6902

Keywords

Article
Publication date: 16 October 2017

A.M. Abd-Alla, S.M. Abo-Dahab and M. Elsagheer

The purpose of this paper is to predict the effects of magnetic field, heat and mass transfer and rotation on the peristaltic flow of an incompressible Newtonian fluid in a…

Abstract

Purpose

The purpose of this paper is to predict the effects of magnetic field, heat and mass transfer and rotation on the peristaltic flow of an incompressible Newtonian fluid in a channel with compliant walls. The whole system is in a rotating frame of reference.

Design/methodology/approach

The governing equations of two-dimensional fluid have been simplified under long wavelength and low Reynolds number approximation. The solutions are carried out for the stream function, temperature, concentration field, velocity and heat transfer coefficient.

Findings

The results indicate that the effects of permeability, magnetic field and rotation are very pronounced in the phenomena. Impacts of various involved parameters appearing in the solutions are carefully analyzed.

Originality/value

The effect of the concentration distribution, heat and mass transfer and rotation on the wave frame is analyzed theoretically and computed numerically. Numerical results are given and illustrated graphically in each case considered. A comparison was made with the results obtained in the presence and absence of rotation, magnetic field and heat and mass transfer.

Details

Multidiscipline Modeling in Materials and Structures, vol. 13 no. 4
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 16 July 2024

Fehid Ishtiaq, R. Ellahi, M.M. Bhatti and Sadiq M. Sait

Cilia serves numerous biological functions in the human body. Malfunctioning of nonmotile or motile cilia will have different kinds of consequences for human health. More…

Abstract

Purpose

Cilia serves numerous biological functions in the human body. Malfunctioning of nonmotile or motile cilia will have different kinds of consequences for human health. More specifically, the directed and rhythmic beat of motile cilia facilitates the unidirectional flow of fluids that are crucial in both homeostasis and the development of ciliated tissues. In cilia-dependent hydrodynamic flows, tapering geometries look a lot like the structure of biological pathways and vessels, like airways and lymphatic vessels. In this paper, the Carreau fluid model through the cilia-assisted tapered channel (asymmetric) under the influence of induced magnetic field and convective heat transfer is investigated.

Design/methodology/approach

Lubrication theory is a key player in the mathematical formulation of momentum, magnetic field and energy equations. The formulated nonlinear and coupled differential equations are solved with the aid of the homotopy perturbation method (HPM). The graphical results are illustrated with the help of the computational software “Mathematica.”

Findings

The impact of diverse emerging physical parameters on velocity, induced magnetic field, pressure rise, current density and temperature profiles is presented graphically. It is observed that the cilia length parameter supported the velocity and current density profiles, while the Hartman number and Weissenberg number were opposed. A promising effect of emerging parameters on streamlines is also perceived.

Originality/value

The study provides novel aspects of cilia-driven induced magnetohydrodynamics flow of Carreau fluid under the influence of induced magnetic field and convective heat transfer through the asymmetric tapered channel.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 9
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 3 April 2019

Fadillah Mansor, Naseem Al Rahahleh and M. Ishaq Bhatti

The purpose of this paper is to compare the return performance and persistence of ethical and conventional mutual funds during two extreme events, the Asian and the global…

Abstract

Purpose

The purpose of this paper is to compare the return performance and persistence of ethical and conventional mutual funds during two extreme events, the Asian and the global financial crises under Shariah constraints.

Design/methodology/approach

The overall sample comprises of 129 Islamic mutual funds (IMFs) and 350 conventional mutual funds (CMFs) in Malaysia, and the average monthly data cover two periods of market cycles, before and during a financial crisis. The net of all expenses data is obtained from the Morningstar Database. This study employs various market risk-adjusted performance measures (ratios) to estimate the funds’ overall performance during the crises, and then it uses CAPM model to estimate the parameters via panel data approach. Moreover, paper employs the two persistence performance measures on IMFs and CMFs through contingency tables. It tests for the performance persistence effects for IMFs, CMFs using repeat winner and the cross-product ratio (CPR) tests proposed by Malkiel (1995) and Brown and Goetzmann (1995), respectively.

Findings

The main findings of the paper are: on average, both funds IMF and the CMF outperform the market return during the entire sample period; none of the funds is better than the “others” during the financial crises and the pre-crisis periods; the ethical fund – IMF outperforms the CMF over the study period. This outcome also indicates that ethical funds are more persistent especially during and the pre-crisis AFC and the GFC periods.

Research limitations/implications

The finding of this study is limited to only Malaysian data because the objective was to guideline investors and market players in Malaysia to prefer investing in Islamic ethical funds to diversify their investment portfolio.

Practical implications

Cautions to use existing ratio measures and CAPM model rather persistence measures may be used with existing methodologies in light of extreme events which influenced investor decision making for better returns at lower risks.

Social implications

A class of ethical funds consists of religious sustainable, socially responsible and impact-investing (SRI) funds but Shariah implications of halal investment must be observed to avoid prohibited practices within the class of SRI funds.

Originality/value

The work done in this paper are original in the sense that the authors employed various ratios to measure fund performance in conjunction with CAPM model and then tested for two persistence performance measures; the repeat winner and CPR tests.

Details

International Journal of Managerial Finance, vol. 15 no. 4
Type: Research Article
ISSN: 1743-9132

Keywords

Article
Publication date: 14 June 2018

Muhammad Awais Bhatti, Mohammed Alshagawi and Ariff Syah Juhari

The purpose of this paper is to examine the mediating role of work engagement (vigor and dedication) between personal resources (self-efficacy and Big Five model) and job…

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Abstract

Purpose

The purpose of this paper is to examine the mediating role of work engagement (vigor and dedication) between personal resources (self-efficacy and Big Five model) and job performance (task and contextual) rated by supervisor.

Design/methodology/approach

A sample of 364 nurses and their supervisors was used. Structural equation modeling with Amos-17 was used to obtain model fit with path significance of work engagement as mediator between personal resources and job performance.

Findings

The results found support for the proposed conceptual claim and confirm that work engagement with the two-factor model (vigor and dedication) mediates the relationship between personal resources (self-efficacy and Big five model) and with multidimensional construct of job performance (task and contextual performance) rated by the supervisor.

Originality/value

Past researches have never tested the two-factor model of work engagement (vigor and dedication) as mediating variable between personal resources (self-efficacy and big five model) and job performance rated by the supervisor.

Details

International Journal of Human Rights in Healthcare, vol. 11 no. 3
Type: Research Article
ISSN: 2056-4902

Keywords

Article
Publication date: 17 August 2018

K. Suneetha, S.M. Ibrahim and G.V. Ramana Reddy

The purpose of this paper is to investigate the steady 2D buoyancy effects on MHD flow over a permeable stretching sheet through porous medium in the presence of suction/injection.

Abstract

Purpose

The purpose of this paper is to investigate the steady 2D buoyancy effects on MHD flow over a permeable stretching sheet through porous medium in the presence of suction/injection.

Design/methodology/approach

Similarity transformations are employed to transform the governing partial differential equations into ordinary differential equations. The transformed equations are then solved numerically by a shooting technique.

Findings

The working fluid is examined for several sundry parameters graphically and in tabular form. It is observed that with an increase in magnetic field and permeability of porous parameter, velocity profile decreases while temperature and concentration enhances. Stretching sheet parameter reduces velocity, temperature and concentration, whereas it increases skin friction factor, Nusselt number and Sherwood number.

Originality/value

Till now no numerical studies are reported on the effects of heat source and thermal radiation on MHD flow over a permeable stretching sheet embedded in porous medium in the presence of chemical reaction.

Details

Multidiscipline Modeling in Materials and Structures, vol. 14 no. 5
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 2 January 2018

Asim Ehsan Wahla, Hamid Hasan and M. Ishaq Bhatti

The main aim of this paper is to measure customers’ perception of car Ijarah financing transactions services provided by the Islamic banks and financial institutions in Pakistan.

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Abstract

Purpose

The main aim of this paper is to measure customers’ perception of car Ijarah financing transactions services provided by the Islamic banks and financial institutions in Pakistan.

Design/methodology/approach

The paper uses two research methodologies: Kruskal–Wallis and Mann–Whitney test (non-parametric) and logit regression model (parametric). Both methods are then applied to a real data set of 300 respondents from various cities of Pakistan in the car Ijarah financing industry. The demographic effects are also investigated to see the perception about the degree of Shari’ah compliance and the quality of service of transaction offered by banks.

Findings

Main finds of the paper reveal that the customers who used the car Ijarah facility from Islamic banks have positive attitude toward this sort of transaction. In addition, gender, income, marital status affect the perception about the quality of Shari’ah compliance, and the quality of service of transaction issues are very important to selected clients in the industry.

Research limitations/implications

These findings are limited to the car Ijarah financing industry and may not be applicable in other banking products in Pakistan and elsewhere.

Practical implications

Based on the results of this study, potential Islamic bank customers may find it helpful choose products or make product decisions conveniently. The findings of the paper also support Islamic banks in improving the Ijarah facility to increase their customer base in the geo-political locality with similar characteristics as Pakistan.

Social implications

Shari’ah compliance in the Islamic finance industry is a sensitive issue in Pakistan, and hence, car Ijarah’s Shari’ah compliance can affect banks’ reputation and sensitivity.

Originality/value

The work reported in this paper is original, unpublished and the paper is not submitted elsewhere for publication.

Details

Journal of Islamic Accounting and Business Research, vol. 9 no. 1
Type: Research Article
ISSN: 1759-0817

Keywords

Article
Publication date: 23 November 2018

K. Ramesh and Sartaj Ahmad Eytoo

The purpose of this paper is to investigate the three fundamental flows (namely, both the plates moving in opposite directions, the lower plate is moving and other is at rest, and…

Abstract

Purpose

The purpose of this paper is to investigate the three fundamental flows (namely, both the plates moving in opposite directions, the lower plate is moving and other is at rest, and both the plates moving in the direction of flow) of the Ree-Eyring fluid between infinitely parallel plates with the effects of magnetic field, porous medium, heat transfer, radiation and slip boundary conditions. Moreover, the intention of the study is to examine the effect of different physical parameters on the fluid flow.

Design/methodology/approach

The mathematical modeling is performed on the basis of law of conservation of mass, momentum and energy equation. The modeling of the present problem is considered in Cartesian coordinate system. The governing equations are non-dimensionalized using appropriate dimensionless quantities in all the mentioned cases. The closed-form solutions are presented for the velocity and temperature profiles.

Findings

The graphical results are presented for the velocity and temperature distributions with the pertinent parameters of interest. It is observed from the present results that the velocity is a decreasing function of Hartmann number. Temperature increases with the increase of Ree-Eyring fluid parameter, radiation parameter and temperature slip parameter.

Originality/value

First time in the literature, the authors obtained closed-form solutions for the fundamental flows of Ree-Erying fluid between infinitely parallel plates with the effects of magnetic field, porous medium, heat transfer, radiation and slip boundary conditions. Moreover, the results of this paper are new and original.

Details

Multidiscipline Modeling in Materials and Structures, vol. 15 no. 2
Type: Research Article
ISSN: 1573-6105

Keywords

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