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Article
Publication date: 18 April 2024

Kalpana Chandrasekar and Varisha Rehman

Global brands have become increasingly vulnerable to external disruptions that have negative spillover effects on consumers, business and brands. This research area has recently…

Abstract

Purpose

Global brands have become increasingly vulnerable to external disruptions that have negative spillover effects on consumers, business and brands. This research area has recently garnered interest post-pandemic yet remains fragmented. The purpose of this paper is to recognize the most impactful exogenous brand crisis (EBC) and its affective and behavioural impact on consumers.

Design/methodology/approach

In Study 1, we applied repertory grid technique (RGT), photo elicitation method and ANOVA comparisons, to identify the most significant EBC, in terms of repercussions on consumer purchases. In Study 2, we performed collage construction and content analysis to ascertain the impact of the identified significant crisis (from Study 1) on consumer behaviour in terms of affective and behavioural changes.

Findings

Study 1 results reveal Spread-of-diseases and Natural disaster to be the most impactful EBC based on consumer’s purchase decisions. Study 2 findings uncover three distinct themes, namely, deviant demand, emotional upheaval and community bonding that throws light on the affective and behavioural changes in consumer behaviour during the two significant EBC events.

Research limitations/implications

The collated results of the two studies draw insights towards understanding the largely unexplored conceptualisation of EBC from a multi-level (micro-meso-macro) perspective. The integrated framework drawn, highlight the roles and influences of different players in exogenous brand crisis management and suggests future research agendas based on theoretical underpinnings.

Originality/value

To the best of our knowledge, this is the first study which identifies the most important EBC and explicates its profound impact on consumer purchase behaviour, providing critical insights to brand managers and practitioners to take an inclusive approach towards exogenous crises.

Details

Marketing Intelligence & Planning, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0263-4503

Keywords

Article
Publication date: 6 March 2024

Ahmed EL Hana, Ahmed Hader, Jaouad Ait Lahcen, Salma Moushi, Yassine Hariti, Iliass Tarras, Rachid Et Touizi and Yahia Boughaleb

The purpose of the paper is to conduct a numerical and experimental investigation into the properties of nanofluids containing spherical nanoparticles of random sizes flowing…

Abstract

Purpose

The purpose of the paper is to conduct a numerical and experimental investigation into the properties of nanofluids containing spherical nanoparticles of random sizes flowing through a porous medium. The study aims to understand how the thermophysical properties of the nanofluid are affected by factors such as nanoparticle volume fraction, permeability of the porous medium, and pore size. The paper provides insights into the behavior of nanofluids in complex environments and explores the impact of varying conditions on key properties such as thermal conductivity, density, viscosity, and specific heat. Ultimately, the research contributes to the broader understanding of nanofluid dynamics and has potential implications for engineering and industrial applications in porous media.

Design/methodology/approach

This paper investigates nanofluids with spherical nanoparticles in a porous medium, exploring thermal conductivity, density, specific heat, and dynamic viscosity. Studying three compositions, the analysis employs the classical Maxwell model and Koo and Kleinstreuer’s approach for thermal conductivity, considering particle shape and temperature effects. Density and specific heat are defined based on mass and volume ratios. Dynamic viscosity models, including Brinkman’s and Gherasim et al.'s, are discussed. Numerical simulations, implemented in Python using the Langevin model, yield results processed in Origin Pro. This research enhances understanding of nanofluid behavior, contributing valuable insights to porous media applications.

Findings

This study involves a numerical examination of nanofluid properties, featuring spherical nanoparticles of varying sizes suspended in a base fluid with known density, flowing through a porous medium. Experimental findings reveal a notable increase in thermal conductivity, density, and viscosity as the volume fraction of particles rises. Conversely, specific heat experiences a decrease with higher particle volume concentration.xD; xA; The influence of permeability and pore size on particle volume fraction variation is a key focus. Interestingly, while the permeability of the medium has a significant effect, it is observed that it increases with permeability. This underscores the role of the medium’s nature in altering the thermophysical properties of nanofluids.

Originality/value

This paper presents a novel numerical study on nanofluids with randomly sized spherical nanoparticles flowing in a porous medium. It explores the impact of porous medium properties on nanofluid thermophysical characteristics, emphasizing the significance of permeability and pore size. The inclusion of random nanoparticle sizes adds practical relevance. Contrasting trends are observed, where thermal conductivity, density, and viscosity increase with particle volume fraction, while specific heat decreases. These findings offer valuable insights for engineering applications, providing a deeper understanding of nanofluid behavior in porous environments and guiding the design of efficient systems in various industrial contexts.

Details

Multidiscipline Modeling in Materials and Structures, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 19 April 2023

Tarek Sallam

The purpose of this paper is to present a deep-learning-based beamforming method for phased array weather radars, especially whose antenna arrays are equipped with large number of…

77

Abstract

Purpose

The purpose of this paper is to present a deep-learning-based beamforming method for phased array weather radars, especially whose antenna arrays are equipped with large number of elements, for fast and accurate detection of weather observations.

Design/methodology/approach

The beamforming weights are computed by a convolutional neural network (CNN), which is trained with input–output pairs obtained from the Wiener solution.

Findings

To validate the robustness of the CNN-based beamformer, it is compared with the traditional beamforming methods, namely, Fourier (FR) beamforming and Capon beamforming. Moreover, the CNN is compared with a radial basis function neural network (RBFNN) which is a shallow type of neural network. It is shown that the CNN method has an excellent performance in radar signal simulations compared to the other methods. In addition to simulations, the robustness of the CNN beamformer is further validated by using real weather data collected by the phased array radar at Osaka University (PAR@OU) and compared to, besides the FR and RBFNN methods, the minimum mean square error beamforming method. It is shown that the CNN has the ability to rapidly and accurately detect the reflectivity of the PAR@OU with even less clutter level in comparison to the other methods.

Originality/value

Motivated by the inherit advantages of the CNN, this paper proposes the development of a CNN-based approach to the beamforming of PAR using both simulated and real data. In this paper, the CNN is trained on the optimum weights of Wiener solution. In simulations, it is applied on a large 32 × 32 planar phased array antenna. Moreover, it is operated on real data collected by the PAR@OU.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 42 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 12 October 2022

Laurent Yacoub, Sara Abou Ibrahim, Eliane Achy and Eva Nicolas

This study aims to identify the major job stressors that can affect employees’ mental health in the Lebanese commercial banks during the economic turmoil. This study also aims to…

Abstract

Purpose

This study aims to identify the major job stressors that can affect employees’ mental health in the Lebanese commercial banks during the economic turmoil. This study also aims to identify the effects of the mental problems on the employees in addition to the role of human resources in promoting and preventing mental well-being at the workplace.

Design/methodology/approach

The authors interviewed 28 bank employees and the semi-structured interviews last for around 50 min, starting by asking the employees a general question about the concept of mental health disorder. The authors used a purposive sampling in which the population sample is selected based on purpose and the characteristics of a specific category of individuals. Moreover, a thematic analysis is used to analyze the data.

Findings

The findings of this study indicate that most of the employees were suffering from many work-related stressors that have negatively affected their mental well-being. The stress and pressures have significantly increased during the economic crisis. However, most of the interviewees were not or rarely supported by their human resources department and their administration to help them get adapted for such a crisis or for the changes at the workplace.

Originality/value

Mental health disorders are present in the daily normal life and in the workplace as well. The banking industry is not an exceptional one.

Details

International Journal of Organizational Analysis, vol. 31 no. 7
Type: Research Article
ISSN: 1934-8835

Keywords

Book part
Publication date: 14 December 2023

Han Zhang, Jingqi Wang and Han Shen

This study explores the influence of cultural heritage tourism perception on China's tourism image. It analyzes the role of the spiritual bond established between overseas Chinese…

Abstract

This study explores the influence of cultural heritage tourism perception on China's tourism image. It analyzes the role of the spiritual bond established between overseas Chinese youth and the motherland during their visit to the cultural heritage sites in China. This study constructs a theoretical model with 350 overseas Chinese youth as samples based on the identity theory, Stimulus-Organism-Response (S-O-R) theory, and Howard-Sheth model. The results show that cultural heritage tourism perception directly and positively promotes cultural identity among overseas Chinese youth. It is also indirectly and positively associated with their cultural identity through enhancing the tourism image. Cultural intelligence plays a positive moderating role between cultural heritage tourism perception and cultural identity. The results provide significant implications for developing cultural heritage tourism and cultural communication.

Article
Publication date: 6 February 2024

Ting Cui, Shenlong Tang and Siti Hasnah Hassan

Despite the enormous benefits, smart homes (SHs) are still not widely adopted by residents in China. Furthermore, research on the intention to use SHs has overlooked the role of…

Abstract

Purpose

Despite the enormous benefits, smart homes (SHs) are still not widely adopted by residents in China. Furthermore, research on the intention to use SHs has overlooked the role of family factors. Thus, this study aims to propose a new research model to examine the impact of family factors on the usage intention (UI) of SHs.

Design/methodology/approach

This study collected 265 valid data from potential users of SHs in China using a convenience sampling method. The PLS-SEM method was applied to test the research model and related hypotheses.

Findings

The empirical results confirm the mediating role of optimism (OP) in perceived family support (PFS)/perceived family trust (PFT) and attitude (AT). Unsurprisingly, the results validated the relationship between perceived usefulness (PU), attitude (AT) and UI of SHs through TAM theory. Besides, this study also identified the moderating effect of perceived risk (PR) between AT and UI.

Practical implications

To improve SH adoption, practitioners should focus on family factors and utilize family influence to promote the spread of smart home reputation. Besides, SH practitioners should enhance user trust and reduce perceived risks through technological upgrades and security measures.

Originality/value

Based on the Social Impact Theory and Technology Acceptance Model (TAM), this study is an empirical attempt to explore the impact of family factors on the intention to use SHs, expanding the research on smart home adoption.

Details

Asia Pacific Journal of Marketing and Logistics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1355-5855

Keywords

Case study
Publication date: 1 November 2023

Arvind Sahay

In 2015, NESTLÉ India underwent a major crisis as the product which contributed to nearly 30% of its sales had to be taken off the shelves. Maggi—the go-to convenience food for…

Abstract

In 2015, NESTLÉ India underwent a major crisis as the product which contributed to nearly 30% of its sales had to be taken off the shelves. Maggi—the go-to convenience food for all generations (especially kids and young adults)—which had entered the market in 1983, was banned. With a market share of 70-80% before the ban, NESTLÉ, which got the ban lifted in November 2015, had to undergo the task of winning back the lost market. Over a period of 8 months after its relaunch, the brand regained about 60% of its market back, but the question is how could such brand disaster be avoided in future? The case revolves around a major brand recovering from a brand disaster, and whether they did it well enough or could the situation have been managed better. It also enquires as to what road should be taken forward from here. It notes the action taken by the government against the brand and leaves it to the judgment of the readers if the actions taken against the brand were a little too harsh, solely because MNCs are usually considered a soft target in India. The readers must also understand and analyse the different brand relaunch strategies that were adopted by NESTLÉ and the next steps that should be taken by it.

Details

Indian Institute of Management Ahmedabad, vol. no.
Type: Case Study
ISSN: 2633-3260
Published by: Indian Institute of Management Ahmedabad

Keywords

Open Access
Article
Publication date: 3 April 2024

Abdul Kadir, La Husen Zuada and Muhammad Arsyad

This paper aims to investigate the relationships amongst career patterns, neutrality of the state civil apparatus, and organizational performance of the local government in South…

Abstract

Purpose

This paper aims to investigate the relationships amongst career patterns, neutrality of the state civil apparatus, and organizational performance of the local government in South Konawe District, Southeast Sulawesi Province in Indonesia.

Design/methodology/approach

Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) to investigate the relationships between variables through direct and indirect influence testing.

Findings

The findings reveal that career patterns influence neutrality and organizational performance. Neutrality of the state civil apparatus in politics mediates career patterns and local government organizational performance. The findings indicate that, first, promotions most significantly influence the organization’s neutrality and performance. Second, demotions have the least influence on the organization’s robustness and performance.

Originality/value

This paper is among the first to examine the relationships amongst career patterns, neutrality, and organizational performance. Recommendations are provided to improve neutrality and organizational performance, that is, the need to increase promotions and reduce demotions.

Details

Public Administration and Policy, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1727-2645

Keywords

Article
Publication date: 7 March 2023

Mathew Gregory Tagwai, Onimisi Abdullateef Jimoh, Shaib Abdulazeez Shehu and Hareyani Zabidi

This paper aims to give an oversight of what is being done by researchers in GIS and remote sensing (field) to explore minerals. The main objective of this review is to explore…

Abstract

Purpose

This paper aims to give an oversight of what is being done by researchers in GIS and remote sensing (field) to explore minerals. The main objective of this review is to explore how GIS and remote sensing have been beneficial in identifying mineral deposits for easier and cost-effective mining.

Design/methodology/approach

The approach of this research used Web of Science to generate a database of published articles on the application of GIS and remote sensing techniques for mineral exploration. The literature was further digested, noting the main findings, adopted method, illustration and research scales.

Findings

When applied alone, each technique seems effective, but it is important to know that combining different methods is more effective in identifying ore deposits.

Originality/value

This paper also examined and provided possible solutions to both current and future perspective issues relating to the application of GIS and remote sensing to mineral exploration. The authors believe that the conclusions and recommendations drawn from case studies and literature review will be of great importance to geoscientists and policymakers.

Details

World Journal of Engineering, vol. 21 no. 3
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 5 July 2023

Meredith Downes and Alex J. Barelka

This paper examines the relationship between chief executive officer (CEO) international experience (IE) and firm performance. The authors also examine the symmetry of this…

Abstract

Purpose

This paper examines the relationship between chief executive officer (CEO) international experience (IE) and firm performance. The authors also examine the symmetry of this relationship, whereby home and host countries would be interchangeable without any significant change in the impact of each cultural dimension on firm performance.

Design/methodology/approach

For a sample of CEOs from Fortune's list of Global 500 companies, firm performance was measured as average net margin for the first four years of CEO tenure. IE was the difference between home country culture and that where CEO experience was gained, based on the GLOBE cultural dimensions. Regression then tested the IE/firm performance relationship. For symmetry, distance direction was coded as either positive or negative, depending on whether home country score on a given dimension was higher or lower than that of the host. Moderator regression then tested for whether distance direction impacted the relationship between IE and firm performance.

Findings

Results show that overall distance between home and host cultures in aggregate does not have a significant effect on firm performance. However, for specific dimensions, greater distances between the CEO's countries of experience and that of the parent company on in-group collectiveness and performance orientation are associated with higher firm performance, and greater distances on power distance and assertiveness are associated with lower performance. The authors further find asymmetric patterns in the IE–performance relationship, attributable primarily to the fact that, when scores on performance orientation are greater for the home than host country, organizational performance is significantly enhanced.

Originality/value

This study's hypotheses are grounded in theory, combining the human capital perspective with cultural paradox theory. In addition, the authors offer a unique approach for measuring the dimensional distance of culture.

Details

Journal of Global Mobility: The Home of Expatriate Management Research, vol. 11 no. 4
Type: Research Article
ISSN: 2049-8799

Keywords

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