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Article
Publication date: 5 June 2017

Ram Jiwari, Vikas Kumar, Ram Karan and Ali Saleh Alshomrani

This paper aims to deal with two-dimensional magneto-hydrodynamic (MHD) Falkner–Skan boundary layer flow of an incompressible viscous electrically conducting fluid over a…

149

Abstract

Purpose

This paper aims to deal with two-dimensional magneto-hydrodynamic (MHD) Falkner–Skan boundary layer flow of an incompressible viscous electrically conducting fluid over a permeable wall in the presence of a magnetic field.

Design/methodology/approach

Using the Lie group approach, the Lie algebra of infinitesimal generators of equivalence transformations is constructed for the equation under consideration. Using these suitable similarity transformations, the governing partial differential equations are reduced to linear and nonlinear ordinary differential equations (ODEs). Further, Haar wavelet approach is applied to the reduced ODE under the subalgebra 4.1 for constructing numerical solutions of the flow problem.

Findings

A new type of solutions was obtained of the MHD Falkner–Skan boundary layer flow problem using the Haar wavelet quasilinearization approach via Lie symmetric analysis.

Originality/value

To find a solution for the MHD Falkner–Skan boundary layer flow problem using the Haar wavelet quasilinearization approach via Lie symmetric analysis is a new approach for fluid problems.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 27 no. 6
Type: Research Article
ISSN: 0961-5539

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Book part
Publication date: 22 August 2018

Adrija Dey

Abstract

Details

Nirbhaya, New Media and Digital Gender Activism
Type: Book
ISBN: 978-1-78754-529-8

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Article
Publication date: 6 November 2017

Sapna Pandit, Ram Jiwari, Karan Bedi and Mehmet Emir Koksal

The purpose of this study is to develop an algorithm for approximate solutions of nonlinear hyperbolic partial differential equations.

251

Abstract

Purpose

The purpose of this study is to develop an algorithm for approximate solutions of nonlinear hyperbolic partial differential equations.

Design/methodology/approach

In this paper, an algorithm based on the Haar wavelets operational matrix for computational modelling of nonlinear hyperbolic type wave equations has been developed. These types of equations describe a variety of physical models in nonlinear optics, relativistic quantum mechanics, solitons and condensed matter physics, interaction of solitons in collision-less plasma and solid-state physics, etc. The algorithm reduces the equations into a system of algebraic equations and then the system is solved by the Gauss-elimination procedure. Some well-known hyperbolic-type wave problems are considered as numerical problems to check the accuracy and efficiency of the proposed algorithm. The numerical results are shown in figures and Linf, RMS and L2 error forms.

Findings

The developed algorithm is used to find the computational modelling of nonlinear hyperbolic-type wave equations. The algorithm is well suited for some well-known wave equations.

Originality/value

This paper extends the idea of one dimensional Haar wavelets algorithms (Jiwari, 2015, 2012; Pandit et al., 2015; Kumar and Pandit, 2014, 2015) for two-dimensional hyperbolic problems and the idea of this algorithm is quite different from the idea for elliptic problems (Lepik, 2011; Shi et al., 2012). Second, the algorithm and error analysis are new for two-dimensional hyperbolic-type problems.

Details

Engineering Computations, vol. 34 no. 8
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 19 December 2019

Rofikoh Rokhim and Irma Octaviani

This paper aims to examine whether Sharia mutual fund managers are able to gain abnormal returns from what is called the Ramadhan effect.

681

Abstract

Purpose

This paper aims to examine whether Sharia mutual fund managers are able to gain abnormal returns from what is called the Ramadhan effect.

Design/methodology/approach

The authors use GARCH regression on daily data of domestic Sharia mutual fund performance in Indonesia and Malaysia over the period of 2007-2017.

Findings

The authors find that the Ramadhan effect is not a strong predictor of Sharia fund excess return in Indonesia and Malaysia, and they identify a positive Ramadhan abnormal return on the Malaysia Sharia Equity Fund. This result shows there is size effect on sharia fund excess return in Indonesia and value effect on Sharia Balanced Fund in both markets. It is suggested that the effect of market excess return in Indonesia is stronger than in Malaysia.

Research limitations/implications

The samples are limited to Sharia Funds over the period 2007-2017.

Practical implications

The authors suggest that size and value effect could be considered to develop the selection and timing strategies to explore the Ramadhan effect.

Originality/value

This study focuses on Indonesia and Malaysia, the two largest Islamic Stock Markets in Southeast Asia and examines specific on Sharia Mutual Fund (equity and balanced fund). It also compares differences in total performance measures between the Ramadhan period and non-Ramadhan period.

Details

International Journal of Islamic and Middle Eastern Finance and Management, vol. 13 no. 1
Type: Research Article
ISSN: 1753-8394

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Book part
Publication date: 12 November 2018

Marissa Joanna Doshi

This study reports on a four-month ethnographic project conducted among young Catholic women in Mumbai, India. Here, the author examines how the media consumption of participants…

Abstract

This study reports on a four-month ethnographic project conducted among young Catholic women in Mumbai, India. Here, the author examines how the media consumption of participants is implicated in reconstituting Indian national identity. Because Hinduism is closely tied to conceptualizations of Indianness and because women continue to be marginalized in Indian society, Catholic women in India are viewed as second-class citizens or “not Indian enough” or “appropriately Indian” by virtue of their gender and religious affiliation. However, through media consumption that emphasizes hybridity, participants destabilize narrow definitions of Indian identity. Specifically, participants cultivate hybridity as central to an Indian identity that is viable in an increasingly global society. Within this formulation of hybridity, markers of their marginalization are reframed as markers of distinction. By centering hybridity in their media consumption, young, middle-class Catholic women (re)imagine their national identity in translocal cosmopolitan terms that subverts marginalization experienced by virtue of their religion and leverages privileges they enjoy by virtue of their middle-class status. Importantly, this version of Indian identity remains elitist in that it remains inaccessible to poor women, including poor women of minority groups.

Details

Media and Power in International Contexts: Perspectives on Agency and Identity
Type: Book
ISBN: 978-1-78769-455-2

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Case study
Publication date: 3 December 2020

Dayashankar Maurya, Amit Kumar Srivastava and Sulagna Mukherjee

The central lesson to be learned from studying the case is to understand the challenges and constraints posed by contextual conditions in designing contracts in public–private…

Abstract

Learning outcomes

The central lesson to be learned from studying the case is to understand the challenges and constraints posed by contextual conditions in designing contracts in public–private partnerships (PPP) for financing and delivering health care in emerging economies such as India.

Case overview/synopsis

Perverse incentives, along with contextual conditions, led to extensive opportunistic behaviors among involved agencies, limiting the effectiveness of otherwise highly regarded innovative design of the program.

Complexity academic level

India’s “Rashtriya Swasthya Bima Yojana” or National Health Insurance Program, launched in 2007 provided free health insurance coverage to protect millions of low-income families from getting pushed into poverty due to catastrophic health-care expenditure. The program was implemented through a PPP using standardized contracts between multiple stakeholders from the public and private sector – insurance companies, hospitals, intermediaries, the provincial and federal government.

Supplementary materials

Teaching Notes are available for educators only.

Subject code

CSS: 10 Public Sector Management.

Details

Emerald Emerging Markets Case Studies, vol. 10 no. 4
Type: Case Study
ISSN: 2045-0621

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Book part
Publication date: 19 January 2023

Sunaina Gowan

This chapter will showcase interesting anecdotes from immigrant Indian professionals working in Australian companies. The central normative dilemma is whether immigrants surrender…

Abstract

This chapter will showcase interesting anecdotes from immigrant Indian professionals working in Australian companies. The central normative dilemma is whether immigrants surrender some aspects of their identity, such as language or fashion sense, to integrate into mainstream Australian culture and institutions. Assimilation is defined as ‘being absorbed into the dominant society’s cultural tradition and thereby losing one’s unique character’ (Garcia & Van Soest, 2006, p. 14). It was discovered that although some immigrants saw the workplace as a cause of ridicule and exclusion, others see it as a means of personal validation and inclusion.

Details

The Ethnically Diverse Workplace: Experience of Immigrant Indian Professionals in Australia
Type: Book
ISBN: 978-1-80382-053-8

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Article
Publication date: 9 April 2018

Akhtar Alam, M. Sultan Bhat, Hakim Farooq, Bashir Ahmad, Shabir Ahmad and Ashaq H. Sheikh

Risk assessment is imperative for disaster risk reduction. The risk is rooted to various physical, social, economic, demographic and environmental factors that determine the…

465

Abstract

Purpose

Risk assessment is imperative for disaster risk reduction. The risk is rooted to various physical, social, economic, demographic and environmental factors that determine the probable magnitude of loss during an extreme event. By way of bringing a conceptual model into practice, this paper aims to examine the flood risk of the Srinagar city.

Design/methodology/approach

The “risk triangle” model has been adopted in the present investigation evaluating parameters, reflective of hazard (intensity), exposure (spatial) and vulnerability (sensitivity) using Landsat-8 operational land imager scene (10 September 2014), global positioning system, Cartosat-1 digital elevation model and socioeconomic and demographic data (Census of India, 2011). The authors characterise flood hazard intensity on the basis of variability in water depth during a recent event (September 2014 Kashmir flood); spatial exposure as a function of terrain elevation; and socioeconomic structure and demographic composition of each municipal ward of the city as a determinant factor of the vulnerability. Statistical evaluation and geographic information system-based systematic integration of all the multi-resolution data layers helped to develop composite flood risk score of each ward of the city.

Findings

Principal deliverable of this study is flood risk map of the Srinagar city. The results reveal that approximately 46 per cent of the city comprising 33 municipal wards is at high risk, while rest of the area, i.e. 17 and 37 per cent, exhibit moderate and low levels of risk, constituting 23 and 12 municipal wards, respectively. It is very likely that the municipal wards expressing high risk may witness comparatively more damage (impact) during any future flood event. Thus, there is a need of planned interventions (structural and non-structural) to minimise the emergent risk.

Originality/value

Very rare attempts have been made to bring theoretical models of disaster research in practice; this is mainly because of the complexities associated with the data (selection, availability and subjectivity), methodology (integration, quantification) and resolution (spatial scales). In this direction, this work is expected to have considerable impact, as it provides a clear foundation to overcome such issues for the studies aiming at disaster risk assessment. Furthermore, using varied primary and secondary data, this paper demonstrates the relative (municipal wards) flood risk status of the Srinagar city, which is one of the key aspects for flood hazard mitigation.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 9 no. 2
Type: Research Article
ISSN: 1759-5908

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Book part
Publication date: 22 January 2024

Azman Norhidayah and Albattat Ahmad

According to Yubin et al. (2023), films serve as a medium for conveying visual representations of various elements such as landscapes, buildings, landmarks and monuments, which…

Abstract

According to Yubin et al. (2023), films serve as a medium for conveying visual representations of various elements such as landscapes, buildings, landmarks and monuments, which provide a contextual backdrop for the narrative. According to Vila et al. (2021), the number of global tourists visiting film locations exceeds 80 million. In addition, according to Yubin et al. (2023), the promotion of tourism is facilitated through the utilisation of films, which serve to create novel representations, counteract negative perceptions and enhance the portrayal of underdeveloped destinations. A significant number of individuals engage in the practise of visiting movie sets with the intention of re-experiencing the emotional impact of the film. The devaluation of film marketing has been observed. This method represents a highly indirect approach to enticing tourists. This chapter examines the comprehension of travellers' motivations and the perception of film-exposed locations in Bollywood films (Salnick, 2023). Film tourism provides a tailored and personalised experience for individuals. The difficulty in measuring this concept arises from factors such as the emotional responsiveness, personality traits, background and interpretive abilities of the viewers in relation to media images. According to Castro et al. (2023), the inclusion of a destination on a screen can serve as a means to enhance the diversity of a site's tourist offerings or mitigate the effects of seasonality by providing opportunities for experiential activities, showcasing notable landmarks or serving as a filming location. Film destinations have the potential to gain popularity and benefit from advertising and the perception of spectators.

Details

Future Tourism Trends Volume 1
Type: Book
ISBN: 978-1-83753-245-2

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Article
Publication date: 9 April 2020

Hamzeh Amirteimoori, Alireza Amirteimoori and Mahdi Karbasian

The paper analyzes the relative performance of provincial gas distribution companies with different types of inputs and outputs. A data envelopment analysis (DEA)-based model is…

175

Abstract

Purpose

The paper analyzes the relative performance of provincial gas distribution companies with different types of inputs and outputs. A data envelopment analysis (DEA)-based model is developed to construct an equilibrium efficient frontier in the presence of multi-type input/output variables.

Design/methodology/approach

A DEA-based model is developed to construct an equilibrium efficient frontier in the presence of multi-type input/output variables.

Findings

It has been shown that using this single equilibrium efficient frontier, a trade-off is made between efficient and inefficient companies so as to make all companies as efficient.

Originality/value

The study analyzes the relative performance of provincial gas distribution companies with different types of inputs and outputs. A DEA-based model is developed to construct an equilibrium efficient frontier in the presence of multi-type input/output variables. It has been shown that using this single equilibrium efficient frontier, a trade-off is made between efficient and inefficient companies so as to make all companies as efficient.

Details

Journal of Economic Studies, vol. 47 no. 7
Type: Research Article
ISSN: 0144-3585

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