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Article
Publication date: 6 January 2023

RS. Koteeshwari and B. Malarkodi

Among the proposed radio access strategies for improving system execution in 5G networks, the non-orthogonal multiple access (NOMA) scheme is the prominent one.

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Abstract

Purpose

Among the proposed radio access strategies for improving system execution in 5G networks, the non-orthogonal multiple access (NOMA) scheme is the prominent one.

Design/methodology/approach

Among the most fundamental NOMA methods, power-domain NOMA is the one where at the transmitter, superposition coding is used, and at the receiver, successive interference cancellation (SIC) is used. The importance of power allocation (PA) in achieving appreciable SIC and high system throughput cannot be overstated.

Findings

This research focuses on an outage probability analysis of NOMA downlink system under various channel conditions like Rayleigh, Rician and Nakagami-m fading channel. The system design's objectives, techniques and constraints for NOMA-based 5G networks' PA strategies are comprehensively studied.

Practical implications

From the results of this study, it is found that the outage probability performance of downlink ordered NOMA under Rayleigh, Rician and Nakagami-m fading channel was good.

Originality/value

Outage probability analysis of downlink ordered NOMA under various channel conditions like Rayleigh, Rician and Nakagami-m fading channels were employed. Though the performance of Nakagami-m fading channel is lesser compared to Rayleigh channel, the performance for user 1 and user 2 are good.

Details

Arab Gulf Journal of Scientific Research, vol. 41 no. 4
Type: Research Article
ISSN: 1985-9899

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Article
Publication date: 6 July 2015

Tabassum Ali, Aftab Alam and Jabir Ali

The purpose of this paper is to analyze the market structure and level of competition in health and wellness food products by type, category, prime positioning and distribution…

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Abstract

Purpose

The purpose of this paper is to analyze the market structure and level of competition in health and wellness food products by type, category, prime positioning and distribution networks in India.

Design/methodology/approach

The study is conducted using secondary data from Euromonitor International. Compound Annual Growth Rate (CAGR) has been calculated for analyzing the market trends in terms of type, category and prime positioning and market competition has been analyzed using Herfindahl-Hirschman Index (HHI). Analysis of variance has been used for analyzing the statistical difference in market competition.

Findings

Consumer purchase behavior for food is significantly changing across the world and consumers are becoming increasingly conscious of the health enhancing properties of food. With growing incidences of problems like obesity, diabetes, coronary heart diseases and foodborne diseases, consumers are becoming aware of the role of food in ensuring health and well-being. There have been significant structural changes in the health and wellness food market compositions and India has huge market potential for health and wellness food products with a market size of Rs. 435 billion in 2013 and growing at a significantly high annual growth rate of about 13.8 percent during 2002-2013. HHI results clearly indicate that there is significant competition in the health and wellness food market with average HHI of 0.19. However, the structure of market competition shows a varied trend across the types, categories, prime-positioning and distribution channels of health and wellness food products.

Practical implications

Results of the study provide a better understanding of temporal as well as intra-category changes in market size of health and wellness food products and the competitiveness of the health and wellness food market, providing valuable insights to the companies involved in producing and marketing of health and wellness food products in India.

Originality/value

Health and wellness food market is an emerging area for the marketer and there are limited analysis on market structure and competition.

Details

British Food Journal, vol. 117 no. 7
Type: Research Article
ISSN: 0007-070X

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Publication date: 11 December 2023

Muhammad Azeem

Pakistan had never been a place of serious and nuanced debate and contestation of politics of postcolonial critique, that is, the continuity of economic, political, and cultural…

Abstract

Pakistan had never been a place of serious and nuanced debate and contestation of politics of postcolonial critique, that is, the continuity of economic, political, and cultural dependency of newly independent countries (NICs) on ex-colonizers as pointed out by neocolonialism, dependency theory, and postcolonial theory, respectively. Instead, Pakistan is presented by extant liberal academic literature as a “failed nation” and a state dominated by the military and plagued by religious extremism. As opposed to this, through the literary and activists writings of Aziz-ul-Haq, this chapter will try to illustrate how cultural contestation of the nation-building project postindependence from British rule was a lot more complex and interesting in Pakistan. This was so because the nation-building project of Pakistan was, on the one hand, an amalgamation of Indo-Persian, Arab, Indian, and Western colonial and civilizational influences and, on the other hand, entailed suppression of resilient local and national cultures of its constituent nationalities developed over centuries. This was later expressed in ethno-nationalist politics. However, when it came to the politics of the marginalized in the late 1960s, there were important political, theoretical, and literary insights which caused a change in the direction of political practice in Pakistan, which paralleled the politics expressed by writers like Fanon and early Subaltern Studies influenced by the Naxal Movement in India. The contestation and confusion arising from this dialectic also entered Pakistan's literary and cultural sphere. This chapter not only tries to give a different postcolonial critique of the failure of nation-building project in Pakistan but, though at a preliminary level, is an attempt to separate the original postcolonial theory in its radical tradition from contemporary postmodern/poststructuralist postcolonial theory marked with pessimism and resignation.

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Article
Publication date: 16 December 2021

Mahnoor Mahmood Bhatti, Kanwar Hamza Shuja, Muhammad Aqeel, Zainab Bokhari, Syeda Nasreen Gulzar, Tabassum Fatima and Manahil Sama

Gaslighting a form of abusive manipulation both emotional and psychological is a growing phenomenon in recent times. However, as of yet, there is a scarcity of a valid and…

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Abstract

Purpose

Gaslighting a form of abusive manipulation both emotional and psychological is a growing phenomenon in recent times. However, as of yet, there is a scarcity of a valid and reliable instrument which can measure the severity of gaslighting in victims of interpersonal relationships abuse. The purpose of this study is the development of an instrument which can effectively measure gaslighting in victims and is psychometrically reliable and valid.

Design/methodology/approach

Since the aim of the study was the development of a scale first a sample of eight women who were victims of domestic abuse was taken for the focus group. Afterwards using purposive sampling a sample of 20 women for the pilot study and a sample of 150 women for the main study was taken with age range 18–40 (M = 23.38, S.D = 4.03). For the development of scale theoretical basis along with a focus group was conducted to establish an item pool. Afterwards, subject matter experts helped in establishing contend validity followed by Velicer’s minimum average partial (MAP) method and maximum likelihood factor analysis (FA) was performed for the establishment of the factorial structure of the instrument.

Findings

Velicer’s MAP method and Maximum Likelihood FA suggested two factor structures including peer disagreement and loss of self-trust. Instrument displayed high alpha reliability of α = 0.934, with α = 0.927 and α = 0.854, for the subscale, respectively.

Research limitations/implications

Though all necessary steps were taken to minimize the limitations of the present study, however, some limitations do exist which needs to be addressed. The foremost limitation of the present scale is that it is being developed with only a female sample, however, the inclusion of a male sample in future studies can help in identifying whether men also are victims of gaslighting from peers and other family members or not. The second limitation is of validity though necessary validities have been established future studies should study on establishing further validities to further refine the instrument. Additionally, the scale has only been validated and tested on female samples future studies should be conducted on other specific groups or samples to develop norms. Moreover, testing the scale on other cultures could also help in establishing cross cultural validation of the instrument. Finally, though the scale assumes a higher level of scores suggests a higher level of victimization, a proper cutoff score can help in further identifying proper victims from the normal level of gaslighting.

Practical implications

The present instrument has its applicability in several domains the most important being in the criminal justice system as gaslighting comes under gaslighting and even in the UK is considered as a criminal offense. This instrument can help in determining the severity of gaslighting in victims. Likewise, it can be used in clinical settings for psychologists to identify possible cases of gaslighting victims which can enable them to provide specific help and treatment for them. Moreover, researchers can also benefit from the instrument as it can enable them to explore gaslighting with other possible variables which can help them explore the concept of gaslighting even further.

Originality/value

This paper is a novel study and has been completed with the purpose of evaluating the effects of gaslighting in victims of interpersonal relationships abuse as the earlier measures are either not psychometrically valid or cannot be generalized to a wider population. The present established scale is an effort to construct an instrument that can be used worldwide.

Details

International Journal of Human Rights in Healthcare, vol. 16 no. 1
Type: Research Article
ISSN: 2056-4902

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Article
Publication date: 14 June 2024

Sabia Tabassum, Umra Rashid, Mustafa Raza Rabbani and Miklesh Prasad Yadav

The purpose of this paper is to examine the connectedness among Memecoin, Halal exchange traded funds (ETF) and environmental, social and governance (ESG) indexes in different…

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Abstract

Purpose

The purpose of this paper is to examine the connectedness among Memecoin, Halal exchange traded funds (ETF) and environmental, social and governance (ESG) indexes in different quantiles.

Design/methodology/approach

The authors consider Dogecoin to measure Memecoin while Wahed FTSE USA Shariah ETF (HLAL) and SP Funds S&P 500 Sharia Industry Exclusions ETF (SPUS) are used to represent Halaf ETF. Similarly, iShares ESG Aware MSCI USA ETF (ESGU) and Vanguard ESG US Stock (ESGV) proxy the ESG index ETF. The daily price of these examined markets is considered from January 2, 2020, to January 18, 2024. The quantile vector autoregression is deployed for the empirical computation.

Findings

The result reveals that Memecoin (Dogecoin) emerges as the best diversifier irrespective of various quantiles because it is least connected in terms of recipient and transmission of shock. In addition, the authors observe an intriguing observation that the total connectedness in higher quantile is large, followed by lower quantile.

Originality/value

This study is undertaken considering the novelty in the form of the proxies of examined markets along with natural outbreak (COVID-19) and man-made outbreak (Russia–Ukraine invasion) periods.

Details

Journal of Islamic Marketing, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 27 November 2024

Abid Hussain and Joanna Richardson

The purpose of this study is to measure the current levels of awareness of communication skills among academic librarians in degree-awarding institutions of Pakistan and to…

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Abstract

Purpose

The purpose of this study is to measure the current levels of awareness of communication skills among academic librarians in degree-awarding institutions of Pakistan and to identify barriers that libraries, with the support of organizational stakeholders, could target to enhance adoption and / or improvement of these skills.

Design/methodology/approach

Quantitative research design, based on a Web-based survey method, used a questionnaire as the data collection tool for librarians used in degree-awarding institutions in Pakistan. After incorporating feedback from experts in the field, the questionnaire link was shared with a sample population of n = 400 academic librarians in Pakistan, using simple random sampling. The data was coded in Microsoft Excel and exported to SPSS v 26 for analysis.

Findings

Overall, the findings underscore a consistent and moderate to high level of awareness by this cohort of basic library communication skills and their associated benefits. The level of agreement as to the principal barriers to these skills aligns with previous research results over the past decade and therefore underlines the need to prioritize the development of appropriate solutions.

Research limitations/implications

Further research is indicated to investigate the major factors contributing to the principal barriers identified in the current study.

Practical implications

The study recommends that librarians work with relevant stakeholders to identify strategies to enhance their personal and interpersonal communication skills and to address current barriers to upskilling.

Originality/value

The study could serve as a foundation for any future research and policy frameworks to enhance employability and communication skills among librarians in Pakistan.

Details

Global Knowledge, Memory and Communication, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9342

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Article
Publication date: 1 February 2024

Rashed Al Karim, Sakia Kawser, Md Karim Rabiul, Tabassum Chowdhury and Fathima Nabeelah Yoonoos Murtaza

This study aims to assess the effects of green supply chain management (GSCM) strategies on health-care organizations’ environmental performance (EP). It also assesses that green…

281

Abstract

Purpose

This study aims to assess the effects of green supply chain management (GSCM) strategies on health-care organizations’ environmental performance (EP). It also assesses that green innovation (GI), including green technology innovation (GTI) and green management innovation (GMI), plays mediating roles in the connection between GSCM and EP.

Design/methodology/approach

In total, 375 health-care sector employees in the Chattogram division of Bangladesh provided opinions in the questionnaire survey. PLS-SEM was used to verify the data’s validity and reliability and assess the hypotheses.

Findings

The findings reveal that GSCM practices significantly positively impact GI and EP. Moreover, GTI and GMI mediate the relationship between GSCM and EP in Bangladesh’s health-care sector.

Practical implications

The current findings could promote environmental sustainability in Bangladesh’s health-care industry by fostering environmental collaboration.

Originality/value

The detection of the mediation effect of GTI and GMI on GSCM and EP is a unique contribution of this study that enriches the present GSCM and GI literature, particularly in the Bangladeshi health-care sector.

Details

Global Knowledge, Memory and Communication, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9342

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Article
Publication date: 5 December 2023

Muhammad Aamir Shaheen, Shoaib Aslam, Salman Mahmood, Mumtaz Ahmad and Sumaira Tabassum

The research examines how behavioral intentions, as a higher-order construct, indirectly affect financial inclusion through service trust, usage behavior and financial literacy in…

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Abstract

Purpose

The research examines how behavioral intentions, as a higher-order construct, indirectly affect financial inclusion through service trust, usage behavior and financial literacy in mobile money adoption.

Design/methodology/approach

Following the positivist research philosophy, a cross-sectional study design was used to collect data through questionnaires comprised of scales adapted from prior studies. With a usable sample size of 340 respondents, this study employs partial least squares structural equation modeling to assess the model.

Findings

The study revealed the significant indirect role of behavioral intention on financial inclusion through use behavior, behavioral intentions on use behavior through service trust, and use behavior on financial inclusion through financial literacy. The role of behavioral intentions on financial inclusion through serial mediation of service trust, use behavior and financial literacy was also found to be significant.

Originality/value

This study's novelty resides in examining the indirect relationship between behavioral intentions and financial inclusion, specifically via the serial mediation of service trust, use behavior and financial literacy.

Details

Kybernetes, vol. 54 no. 3
Type: Research Article
ISSN: 0368-492X

Keywords

Available. Open Access. Open Access
Article
Publication date: 19 April 2023

Hasina Tabassum Chowdhury, Shuva Ghosh, Shaim Mahamud, Fazlul Hasan Siddiqui and Sabah Binte Noor

The earth is facing challenges to work for the survival of human life during domino effect disasters. The emergency resource storage locations should be selected considering the…

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Abstract

Purpose

The earth is facing challenges to work for the survival of human life during domino effect disasters. The emergency resource storage locations should be selected considering the probability of domino effect disasters. The first purpose of this study is to select the storage locations where domino effect probability is less. And second, facility development cost and transportation costs and costs for unutilized capacity have been optimized.

Design/methodology/approach

The work is a multiobjective optimization problem and solved with weighted sum approach. At first, the probabilities of domino effect due to natural disasters are calculated based on the earthquake zones. Then with that result along with other necessary data, the location to set up storage facilities and the quantities of resources that need to be transported has been determined.

Findings

The work targeted a country, Bangladesh for example. The authors have noticed that Bangladesh is currently storing relief items at warehouse which is under the domino effect prone region. The authors are proposing to avoid this location and identified the optimized cost for setting up the facilities. In this work, the authors pointed out which location has high probability of domino effect and after avoiding this location whether cost can be optimized, and the result demonstrated that this decision can be economical.

Originality/value

Disaster response authorities should try to take necessary proactive steps during cascading disasters. The novelty of this work is determining the locations to select storage facilities if the authors consider the probability of the domino effect. Then a facility location optimization model has been developed to minimize the costs. This paper can support policymakers to assess the strategies for selecting the location of emergency resource facilities.

Details

Journal of Humanitarian Logistics and Supply Chain Management, vol. 13 no. 4
Type: Research Article
ISSN: 2042-6747

Keywords

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Article
Publication date: 6 October 2020

Ali Muhammad, Jehangir Zeb Khan, Syed Imad Shah and Murad Ali

The purpose of this paper is to examine the struggle of and explore opportunity structure for a special class of social entrepreneurs, known as musicpreneurs, in the context of a…

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Abstract

Purpose

The purpose of this paper is to examine the struggle of and explore opportunity structure for a special class of social entrepreneurs, known as musicpreneurs, in the context of a war-ridden conflict region of Pakistan. A unique case of Pashtun musicians is undertaken, who are confronted with multiple challenges and barriers while commercializing their musical skills. It provides a holistic account of a journey towards self-sustenance from the perspective of real-life musicpreneurs living in harsh socio-economic conditions.

Design/methodology/approach

This research is guided by constructionism and interpretive methodology, where semi-structured in-depth interviews were conducted from 28 entrepreneurs in Peshawar, capital city of the Khyber Pakhtunkwa Province and its surroundings. Qualitative thematic analysis was used to analyze transcribed data.

Findings

This research categorizes all findings into seven unified themes. A common Pashtun shows profound love for music, yet surprisingly, does not extend the same intensity of love to musicians. Till recently, Pashtun musicpreneurs are confronted by multiple challenges and barriers such as copyright violations, socio-cultural resistance and discrimination. However, they have devised new opportunity structures to commercialize their skills and adopt music as a sustainable career.

Research limitations/implications

This research explored multiple aspects of Pashtun musicpreneurs’ lives, compromising minute details on some aspects, for example, limited opportunity structure for musicpreneurs. It bears implications not only for Pakistan but other similar hostile environments for musicpreneurship. For lasting sustainability, overall tranquility and for the promotion of musicpreneurship, challenges surrounding musicpreneurs need to be addressed.

Originality/value

It is the first study of its kind to explore the struggle of musicpreneurs in hostile socio-economic conditions. From theoretical standpoint, a new theory of musicpreneurship is substantiated by paving ways to resolve barriers experienced in the most unfavourable conditions.

Details

Journal of Entrepreneurship in Emerging Economies, vol. 13 no. 5
Type: Research Article
ISSN: 2053-4604

Keywords

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