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Owing to the toxicity, biodegradability, and cost of most corrosion inhibitors, research attention is now focused on the development of environmentally benign, biodegradable, cheap, and efficient options. In consideration of these facts, chrysin, a phytocompound of Populus tomentosa (Chinese white poplar) has been isolated and investigated for its anticorrosion abilities on carbon steel in a mixed acid and chloride system. This highlights the main purpose of the study.

Chrysin was isolated from Populus tomentosa using column chromatography and characterized using Fourier Transform Infrared Spectroscopy and Nuclear Magnetic Resonance Spectroscopy. The investigations are outlined based on theory (Fukui indices, condensed density functional theory and molecular dynamic simulation) and experiments (electrochemical, gravimetry and surface morphology examinations).

Theoretical evaluations permitted the description of the adsorption characteristics, and molecular interactions and orientations of chrysin on Fe substrate. The interaction energy for protonated and neutral chrysin on Fe (110) were −149.10 kcal/mol and −143.28 kcal/mol, respectively. Moreover, experimental investigations showed that chrysin is a potent mixed-type corrosion inhibitor for steel, whose effectiveness depends on its surrounding temperature and concentration. The optimum inhibition efficiency of 78.7% after 24 h for 1 g/L chrysin at 298 K indicates that the performance of chrysin, as a pure compound, compares favorably with other phytocompounds and plant extracts investigated under similar conditions. However, the inhibition efficiency decreased to 62.5% and 51.8% at 318 K after 48 h and 72 h, respectively.

The novelty of this study relies on the usage of a pure compound in corrosion suppression investigation, thus eliminating the unknown influences obtainable by the presence of multi-phytocompounds in plant extracts, thereby advancing the commercialization of bio-based corrosion inhibitors.

The purpose of this paper is to study the adsorption properties of a proven traditional medicine of West Africa origin, Alstonia boonei with an attempt to evaluate its application in the corrosion protection of mild steel in 5 M H₂SO₄ and 5 M HCl.

Phytochemical screening and Fourier transform infrared spectroscopy analysis were used to characterize the methanolic extract of the plant. Gravimetry, gasometry and electrochemical techniques were used in the corrosion inhibition studies of the extract and computational studies were used to describe the electronic and adsorption properties of eugenol, the most abundant phytochemical in Alstonia boonei.

The extract acted as a mixed-type inhibitor in both acidic solutions, with improved inhibition efficiency achieved with increasing concentration. While the efficiency increased with temperature for the HCl system, it decreased for the H₂SO₄ system. The mechanism of adsorption proposed for Alstonia boonei was chemisorption in the HCl system and physisorption in the H₂SO₄ system, and the adsorptions obeyed Langmuir isotherm at low temperatures. Computational parameters showed that eugenol, being a representative of Alstonia boonei, possesses excellent adsorption properties and has the potential to compete with other established plant-based corrosion inhibitors.

As opposed to pure compounds with distinctive corrosion effects, plant extracts are generally composed of a myriad of phytoconstituents that competitively promote or inhibit the corrosion process and their net effect is evident as inhibition efficiencies. This is, therefore, the main research limitation associated with the corrosion inhibition study of Alstonia boonei.

Being very rich in antioxidant properties by its proven curative and preventive effects for diseases, the interest was stimulated towards the attractive results that abound from its corrosion protection of metals via its anti-oxidation route.

Conventionally, consumers perceive luxury products as a means of displaying their wealth and prosperity. Consumption of luxury products has usually been considered the prerogative of the Western world. Although there are a number of studies capturing the pre-purchase and purchase behaviour of consumers, there is a dearth of quality studies that have been conducted in this field to understand the post-purchase behaviour of consumers towards luxury brands, especially in the context of young shoppers in an emerging market context. Studying the post-purchase behaviour of shoppers is important to understand their experience with the brand. A negative experience could lead to a post-purchase dissonance, which in turn could lead to an unbalanced or distorted attitude towards the brand and other marketing stimuli. Keeping this in consideration, the purpose of this study is to explore the experiences and attitudes of young shoppers in India towards luxury consumption.

The study captured responses from young shoppers of Chandigarh and its satellite cities located in the relatively prosperous northwest region of India. The data were collected from 200 participants through a structured questionnaire that was based on an adapted “Attitude towards the concept of luxury” scale by Dubois and Laurent (1994) and “Brand Experience” Scale by Brakus et al. (2009). The structural equation modeling technique was applied to test the proposed model.

The empirical results indicate that sensory, intellectual, behavioural and affective experience play a significant role in building the attitude of consumers towards luxury brands.

The study selected university students from Chandigarh (India) Tricity region as target respondents, which may limit the generalisability of the results to other target respondents in different regions of India or other countries.

The study is useful for researchers, academicians, marketers and retailers of luxury brands, as it gives fresh insights into understanding the consumer behaviour of a young segment towards the consumption of luxury brands in the post-purchase scenario, especially in the context of an emerging market.

The uniqueness of the study lies in the fact that it examines the post-purchase behaviour of a segment consisting of young, educated and aspirational individuals in one of the world’s fastest-growing major economies.

The purpose of this study is to examine the effects of a Disney collaboration and Disney product line extension type on the perceptions of masstige brands and purchase intentions. By identifying masstige brands as two types (i.e. born-masstige versus luxury-masstige brands), this study investigates how consumers respond to a Disney collection across different types of masstige brands.

The authors conducted three studies using an experimental approach.

Study 1 shows that compared to a traditional collection, a Disney collection lowered perceptions of brand luxury, but the negative effect is stronger for born-masstige brands than luxury-masstige brands. Studies 2 and 3 revealed that an upward extension enhanced perceptions of luxury for the born-masstige brand more than it did with a horizontal extension, whereas there was no difference between upward and horizontal extensions for the luxury-masstige brand.

This study contributes to understanding how Disney collaborations influence consumers’ perceptions of masstige brands. It has implications for brand positioning and pricing strategies for practitioners collaborating with Disney or similar companies.

To the best of the authors’ knowledge, this study is the first of its kind to investigate consumer responses to a Disney collaborated collection across two types of masstige brands by exploring their type of product line extensions.

Consumers gift themselves with luxury fashion brands, yet the motives for self-gifting are not well understood. Whereas traditionally, self-gifting is defined as self-orientated in nature, luxury brands are seen as social statements, and self-gifting of luxury fashion brands that combine these two controversial areas is an interesting research topic. The purpose of this paper is to address this issue by exploring the self-gifting behaviour of consumers, in particular focusing on the personal motives of gifting oneself with luxury fashion brands.

The study takes a multi-qualitative approach involving a small (n=19) but rich sample. Data collection and analysis were triangulated to reduce researcher biases.

The study provides key dimensions for understanding consumers’ perceptions of luxury fashion brands and self-gifting motives (self and socially orientated). The findings reveal that reflections from others are part of the self-gifting phenomenon. It appeared that although self-orientated benefits and personally orientated motives trigger the self-gifting act, the act of actually purchasing explicitly luxury brands for oneself as a gift may be triggered by other-orientated benefits and socially orientated motives. The findings also imply that luxury holds a self-orientated aspect; luxury brands are not only purchased for socially orientated reasons but also for reasons related to oneself. In addition, the findings discuss the act of shopping, where the act can be perceived as a luxury experience and overrun the importance of the brand.

The findings provide insights to consumers’ gifting behaviour that may be valuable for retailers and fashion marketers as they plan for marketing activities related to their customers’ self-gifting.

Self-gifting represents a view of gifting that remains under-researched. This study uncovers the motives for gifting oneself with luxury fashion brands, a further sub-area in need for more investigation.

An increasing array of policies have been suggested to combat rising obesity. Regardless of the policy intervention that is selected each comes with a cost in the form of imposition on the public purse, or regulative restrictions on business or individuals. Consequently, potential opposition makes it critical to garner sufficient public support for whichever policy is selected. The purpose of this paper is to explore the ability of attributional framing for the causes of obesity (framed around locus of control and controllability) to increase support for a range of policy interventions designed to reduce obesity.

Using an online panel, the authors manipulate the perceived cause of obesity along the internal/external locus and controllability/uncontrollability dimensions to assess whether attribution of causes of obesity can influence support for policy interventions that either encourage positive behaviour or discourage negative behaviour.

The authors find that framing the causes of obesity to emphasise internal/external locus and controllability/uncontrollability has significant and predictable effects on policy support for men but not for women. In this American study, they show that men are more open to persuasion because their views on the causes of obesity are less firmly held than women.

Highlighting the external and controllable causes of obesity was the most effective, suggesting that emphasising the role of the food industry in obesity can garner public support amongst males for a broad range of policy types. The limited effectiveness with women suggests that media focus be directed at male-oriented channels and outlets.

The authors show that, at least amongst men, attribution framing can be used as a tool to increase support for policy interventions to prevent obesity.

There has been a huge fluctuation in online marketplace that suggests inconsistencies of m-commerce usage. The study investigates user behaviour to continued patronage of m-commerce and the mediating role of perceived value.

The study aimed to use adapted questionnaire and online version to pool data from respondents that has internet profile and conducts m-commerce. The hypotheses were proven through the use of structural equation model.

In this paper performance expectancy and user satisfaction are major determinants of continuance intention to use m-commerce in African context while perceived value partially mediate the relationship between the variables.

Cross-sectional survey and the small sample size that was used calls for caution in generalisation.

With the mediating influence of perceived value, attention is directed to the role of value perception of m-commerce users. Keeping and increasing continuance usage requires pleasurable offerings and value indices that influence their subjective perceptions.

The significance of the mediating variable highlights the social value dimension of users' value perception given that it can help to deepen the continuous usage of m-commerce.

The predictive power of 78.5% continuance intention demonstrates inclusion of factors with better predictive accuracy. Importantly, the significance of perceived value as a mediator demonstrates the importance of valuing not only the direct impacts of the variables but also the indirect roles that impacts continuance intention of m-commerce in African context.

The study aims to investigate the factors influencing the behavioural intention of bottom-of-the-pyramid (BOP) consumers in developing economies, such as India, to adopt mobile wallets, drawing upon the framework of the uses and gratification theory. Furthermore, the study also examines the moderating effect of gender.

To achieve the objective, primary data were collected from a sample of 220 respondents using the survey method. The reliability and validity of the survey instrument were demonstrated through confirmatory factor analysis. Subsequently, structural equation modelling (SEM) was used for hypotheses testing.

The study revealed that only convenience and social influence have a positive significant influence on the behavioural intention to adopt mobile wallets whereas, innovativeness, trust and compatibility have no significant relationship with behavioural intention to adopt mobile wallets among the BOP consumers. Further, gender moderates the relationship between compatibility and behavioural intention to adopt mobile wallets in India.

This study contributes to the underexplored area of research concerning the behavioural intention to adopt mobile wallets among BOP consumers in a developing economy. It introduces a novel approach by using the uses and gratifications theory to uncover the underlying motivations behind adoption behaviour.

The purpose of this paper is to report the findings of a research study that sought to identify the key dimensions of luxury from a UK consumers’ perspective.

The project was empirical in nature and based on a two-stage methodology that involved a series of depth interviews with consumers and a street intercept survey of 131 consumers in the UK.

The project found that UK consumers appear to recognise five dimensions of luxury (affect, characteristics, status, gifting and involvement).

The main limitation was a small sample size and limited statistical significance.

The paper should usefully focus the attention and efforts of managers of luxury brands, managers of ordinary brands who desire to develop them into luxury brands, and managers who are considering creating luxury brands in the UK. The findings should inform management decisions relating to product development, advertising, promotion and distribution of luxury products and services.

The paper makes an original contribution to knowledge by reporting the findings of an empirical study of luxury from the UK consumers’ perspective. It has value to academic researchers who are interested in the concept of luxury as well as those involved in or considering luxury brand management.

The entropy and thermal behavior analyses of non-Newtonian nanofluid double-diffusive natural convection inside complex domains may captivate a bunch of scholars’ attention because of the potential utilizations that they possess in modern industries, for example, heat exchangers, solar energy collectors and cooling of electronic apparatuses. This study aims to investigate the second law and thermal behavior of non-Newtonian double-diffusive natural convection (DDNC) of Al₂O₃-H₂O nanofluid within a C-shaped cavity emplacing two hot baffles and impacted by a magnetic field.

For the governing equations of the complicated and practical system with all considered parameters to be solved via a formidable numerical approach, the finite element method acts as an approach to achieving the desired solution. This method allows us to gain a detailed solution to the studied geometry.

This investigation has been executed for the considered parameters of range, such as power-law index, baffle length, Lewis number, buoyancy ratio, Hartmann number and Rayleigh number. The main results reveal that isothermal and concentration lines are significantly more distorted, indicating intensified concentration and temperature distributions because of the growth of baffle length (L). Nu_ave decreases by 8.4% and 0.8% while it enhances by 49.86% and 33.87%, respectively, because of growth in the L from 0.1 to 0.2 and 0.2 to 0.3.

Such a comprehensive study on the second law and thermal behavior of DDNC of Al₂O₃-H₂O nanofluid within a C-shaped cavity emplacing two hot baffles and impacted by magnetic field has not yet been carried out.