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Article
Publication date: 26 May 2021

Amit K. Verma, Narendra Kumar, Mandeep Singh and Ravi P. Agarwal

In this article, the authors consider the following nonlinear singular boundary value problem (SBVP) known as Lane–Emden equations, −u″(t)-(α/t) u′(t) = g(t, u), 0 < t < 1…

Abstract

Purpose

In this article, the authors consider the following nonlinear singular boundary value problem (SBVP) known as Lane–Emden equations, −u″(t)-(α/t) u′(t) = g(t, u), 0 < t < 1 where α ≥ 1 subject to two-point and three-point boundary conditions. The authors propose to develop a novel method to solve the class of Lane–Emden equations.

Design/methodology/approach

The authors improve the modified variation iteration method (VIM) proposed in [JAAC, 9(4) 1242–1260 (2019)], which greatly accelerates the convergence and reduces the computational task.

Findings

The findings revealed that either exact or highly accurate approximate solutions of Lane–Emden equations can be computed with the proposed method.

Originality/value

Novel modification is made in the VIM that provides either exact or highly accurate approximate solutions of Lane-Emden equations, which does not exist in the literature.

Details

Engineering Computations, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0264-4401

Keywords

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Article
Publication date: 8 August 2020

Amit K. Verma, Narendra Kumar and Diksha Tiwari

The purpose of this paper is to propose an efficient computational technique, which uses Haar wavelets collocation approach coupled with the Newton-Raphson method and…

Abstract

Purpose

The purpose of this paper is to propose an efficient computational technique, which uses Haar wavelets collocation approach coupled with the Newton-Raphson method and solves the following class of system of Lane–Emden equations:

(tk1y(t))=tω1f1(t,y(t),z(t)),
(tk2z(t))=tω2f2(t,y(t),z(t)),
where t > 0, subject to the following initial values, boundary values and four-point boundary values:
y(0)=γ1, y(0)=0, z(0)=γ2, z(0)=0,
y(0)=0, y(1)=δ1, z(0)=0, z(1)=δ2,
y(0)=0, y(1)=n1z(v1), z(0)=0, z(1)=n2y(v2),
where n1,n2,v1,v2(0,1) and k10,k20,ω1<1,ω2<1, γ1, γ2, δ1, δ2 are real constants.

Design/methodology/approach

To deal with singularity, Haar wavelets are used, and to deal with the nonlinear system of equations that arise during computation, the Newton-Raphson method is used. The convergence of these methods is also established and the results are compared with existing techniques.

Findings

The authors propose three methods based on uniform Haar wavelets approximation coupled with the Newton-Raphson method. The authors obtain quadratic convergence for the Haar wavelets collocation method. Test problems are solved to validate various computational aspects of the Haar wavelets approach. The authors observe that with only a few spatial divisions the authors can obtain highly accurate solutions for both initial value problems and boundary value problems.

Originality/value

The results presented in this paper do not exist in the literature. The system of nonlinear singular differential equations is not easy to handle as they are singular, as well as nonlinear. To the best of the knowledge, these are the first results for a system of nonlinear singular differential equations, by using the Haar wavelets collocation approach coupled with the Newton-Raphson method. The results developed in this paper can be used to solve problems arising in different branches of science and engineering.

Details

Engineering Computations, vol. 38 no. 2
Type: Research Article
ISSN: 0264-4401

Keywords

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Book part
Publication date: 24 October 2015

Nayyer Naseem, Swati Verma and Attila Yaprak

The purpose of this paper is to shed light on the interplay between selected consumer behavior constructs and their individual and joint influences on purchase intentions…

Abstract

Purpose

The purpose of this paper is to shed light on the interplay between selected consumer behavior constructs and their individual and joint influences on purchase intentions of global, local, and hybrid brands. This is a topic that is becoming increasingly important as the world moves toward global economic interdependence and increasingly more firms expand abroad.

Methodology/findings

As the paper is in its conceptual/modeling phase, its research design is not yet complete, nor does it offer any findings. Resting our work on attitude and identity theories, we derive hypotheses about the potential influence of consumer behavior constructs, that is, the levels of the consumer’s global consumption orientation, globalization attitude, consumer ethnocentrism, and consumer cosmopolitanism on global brand attitude and its influence on willingness to purchase global versus nonglobal brands. We also derive hypotheses about influences that might moderate this relationship; specifically the consumer’s affinity with the home country of the particular brand, and the perceived value embedded in the brand.

Research/practical/social implications

Our work will contribute to the expanding literature on global consumer culture and consumption patterns and will thus provide valuable insights for international marketing managers and for social policy.

Originality/value

Our work will examine the joint influences of several consumer behavior constructs on brand purchase behavior, in addition to the independent influences of these constructs. It will also explore the possible mediating influence of global brand attitude on purchase intentions and moderating effects, if any, of perceived value and consumer affinity on consumers’ choices of global over local and hybrid brands.

Details

International Marketing in the Fast Changing World
Type: Book
ISBN: 978-1-78560-233-7

Keywords

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Book part
Publication date: 24 October 2015

Abstract

Details

International Marketing in the Fast Changing World
Type: Book
ISBN: 978-1-78560-233-7

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Abstract

Details

International Marketing in the Fast Changing World
Type: Book
ISBN: 978-1-78560-233-7

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Article
Publication date: 26 January 2021

Arshad Khan, Mo Faheem and Akmal Raza

The numerical solution of third-order boundary value problems (BVPs) has a great importance because of their applications in fluid dynamics, aerodynamics, astrophysics…

Abstract

Purpose

The numerical solution of third-order boundary value problems (BVPs) has a great importance because of their applications in fluid dynamics, aerodynamics, astrophysics, nuclear reactions, rocket science etc. The purpose of this paper is to develop two computational methods based on Hermite wavelet and Bernoulli wavelet for the solution of third-order initial/BVPs.

Design/methodology/approach

Because of the presence of singularity and the strong nonlinear nature, most of third-order BVPs do not occupy exact solution. Therefore, numerical techniques play an important role for the solution of such type of third-order BVPs. The proposed methods convert third-order BVPs into a system of algebraic equations, and on solving them, approximate solution is obtained. Finally, the numerical simulation has been done to validate the reliability and accuracy of developed methods.

Findings

This paper discussed the solution of linear, nonlinear, nonlinear singular (Emden–Fowler type) and self-adjoint singularly perturbed singular (generalized Emden–Fowler type) third-order BVPs using wavelets. A comparison of the results of proposed methods with the results of existing methods has been given. The proposed methods give the accuracy up to 19 decimal places as the resolution level is increased.

Originality/value

This paper is one of the first in the literature that investigates the solution of third-order Emden–Fowler-type equations using Bernoulli and Hermite wavelets. This paper also discusses the error bounds of the proposed methods for the stability of approximate solutions.

Details

Engineering Computations, vol. 38 no. 6
Type: Research Article
ISSN: 0264-4401

Keywords

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Case study
Publication date: 23 November 2020

Rajeev Verma, G. K. Murthy Kothapalli and Ranjani Kumari

The learning outcomes are as follows: assessing the changing trend in the needs of the customer, leading to evolution of new types of businesses in the urban areas. Deep…

Abstract

Learning outcomes

The learning outcomes are as follows: assessing the changing trend in the needs of the customer, leading to evolution of new types of businesses in the urban areas. Deep understanding of household service industry and its future. Assessing the skills and capabilities required to become an entrepreneur and follow entrepreneurship. Understanding the aggregator, two-sided business model prevailing in the market. Understand the concept of business-to-business (B2B), business-to-consumer (B2C) business model in household industry.

Case overview/synopsis

This case study is about two first-generation entrepreneurs from India who started a new innovative service delivery platform, UrbanKare with a vision to organize the household maintenance services industry. The company was founded in 2016 with a seed capital support of the State Government. The idea behind this initiative was to provide customers a professional, reliable and convenient household repair and maintenance services at their fingertips. The biggest challenge they were facing was that of aggregation of service providers (skilled workforce) and maintaining the service quality in the context of B2B and B2C service provision.

Complexity academic level

PG level courses – Industrial Marketing Startup and Business Entrepreneurship.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS 8: Marketing.

Details

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

Keywords

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Article
Publication date: 5 July 2021

Swati Alok, Sudatta Banerjee and Swati Singh

This study aims to examine the relationship between work-family conflict (WFC) and personal self-efficacy among career persistent women in India. Further, this…

Abstract

Purpose

This study aims to examine the relationship between work-family conflict (WFC) and personal self-efficacy among career persistent women in India. Further, this relationship was explained with the help of the mediating role of perceived managerial support.

Design/methodology/approach

Survey data were collected from 510 career persistent women working in the Information Technology (IT) sector in India. The data were analyzed using structural equation modeling and mediation was tested using Process- Macro.

Findings

Findings depicted a positive relationship between WFC and professional self-efficacy demand and self-efficacy challenges. Perceived managerial support was also found to be positively related professional self-efficacy. Furthermore, perceived managerial support was found to have a significant mediating effect in WFC and professional self-efficacy relationships.

Originality/value

Findings of the study may enhance the understanding of WFC in emerging economies, as most of the research has been done in the western context. Findings of the study are crucial, as it highlights the relationship between WFC and professional self-efficacy in the presence of perceived managerial support. Moreover, the paper uniquely discusses the role of WFC in professional self-efficacy among career persistent women in IT sector.

Details

Gender in Management: An International Journal , vol. 36 no. 8
Type: Research Article
ISSN: 1754-2413

Keywords

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Article
Publication date: 7 November 2016

Shruti Shastri and Swati Shastri

The purpose of the paper is to examine the linkages between exchange rate and interest rate in India using quarterly data from Q1 of 1996 to Q4 of 2014.

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Abstract

Purpose

The purpose of the paper is to examine the linkages between exchange rate and interest rate in India using quarterly data from Q1 of 1996 to Q4 of 2014.

Design/methodology/approach

Stationarity properties of data are checked using the Augmented Dickey–Fuller (ADF), Dickey–Fuller test with GLS de-trending (DF-GLS) and Kwiatkowski-Phillips-Schmidt-Shin (KPSS) tests and Perron’s unit root test with structural breaks. Johansen Juselius and Gregory Hansen tests are applied to assess cointegration, and block exogeneity test is used to detect causality among variables.

Findings

The study finds long-run relationship among interest rate, rupee–dollar exchange rate, capital flows, intervention, inflation differential, money supply differentials, output differentials and trade-balance differentials. However, the interest rate does not explain movements in the exchange rate, directly and indirectly, via capital flows. Intervention by the Central Banks to stabilize exchange rate does not have implications for movements in interest rate.

Research limitations/implications

The study finds capital flows to be insensitive with respect to interest rates and hence thwarts International Monetary Fund ’s (IMF) claim of using interest rates as a tool to stabilize exchange rate. The much-debated conflict between exchange-rate stabilization and control over interest rates also does not hold up to the empirical reality of India.

Originality/value

The study augments the existing literature by taking into account the problem of structural break in the relationship between interest rate and exchange rate. Three measures of interest rate are used to assess the robustness of results adding to their credibility compared to previous studies.

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Article
Publication date: 8 May 2017

Swati Gupta and B.D. Sharma

The aim of this work was to study the effect of aerobic packaging on storage quality of functional restructured spent hen meat slices (FRSHMS) at refrigerated temperature…

Abstract

Purpose

The aim of this work was to study the effect of aerobic packaging on storage quality of functional restructured spent hen meat slices (FRSHMS) at refrigerated temperature (4 ± 1°C).

Design/methodology/approach

FRSHMS were prepared by replacing the lean meat with different binders and extenders in pre-standardized restructured spent hen meat slices formulation. The slices of control and FRSHMS were aerobically packaged in LDPE and analyzed for physicochemical, microbiological and sensory quality.

Findings

The pH of FRSHMS was significantly higher (p = 0.03) than control on 0 and 7th day. Thiobarbituric acid (TBA) values of both control and FRSHMS increased significantly on 21st day of storage as compared to 0 day. TBA value of FRSHMS was significantly lower (p = 0.04) as compared to that of control on 21st day. Psychrophils were detected on 14th day of storage and thereafter increased significantly (p = 0.00) in both control and FRSHMS. Coliforms were detected only on 21st day of storage in both control and FRSHMS. The sensory attributes of control, and FRSHMS were affected from 14th day onwards, but the products remained quite acceptable with sensory rating between good to very good up to 21 days during refrigerated storage.

Research limitations/implications

The trials can be further carried in modified atmospheric packaging to evaluate storage stability of developed restructured spent hen meat slices.

Originality/value

The paper has demonstrated that the FRSHMS could be stored safely in aerobic packaging for 21 days at refrigeration temperature.

Details

Nutrition & Food Science, vol. 47 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

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