β-Resin was extracted by solvent separation of refined coal tar pitch. Several analytical methods revealed that β-resin had a better aromatic plane packing structure and a higher number of carbon residues, making it ideal for mesophase transformation. The mesophase transformation process of β-resin (the formation of liquid-crystalline spheres, the growth of mesophase spheres, and the coalescence and disintegration of mesophase spheres) was observed in situ using a polarizing microscope with a hot stage. Moreover, the mesophase transformation mechanism of β-resin was investigated at each transformation stage. The mesophase content and mesophase transformation kinetics were analyzed based on the area method and quinoline insoluble (QI) substitution method. Both methods revealed changes in the mesophase content of β-resin. However, the test results of the two methods were slightly different at the initial stage of mesophase transformation and tended to be consistent during the later stage.

To determine the cause of the population decline in Gobiobotia naktongensis, substrate preference and burying behaviour were investigated in this study. In general, the species was shown to prefer a substrate size of 1 mm or less, depending on the flow. In addition, the burying depth varied according to the size of the fish and increased with a decrease in water temperature. Our findings showed that the main cause of the population reduction was the physical changes in the substrate structure due to the dams or barrages construction. Notably, the accumulation of silt and mud in the substrate upon the formation of an upstream lentic water region for structural construction and bed armouring caused by scouring and reduced downstream inflow of fine sediment were deterministic in the fish habitat changes, causing problems in burying. As sand substrate structure is critical for the survival and inhabitation of psammophilous species, efficient strategies should be developed with proper habitat management to reduce the anthropogenic damage

We aimed to investigate the effect of environmental enrichment via toys on the behaviour and performance of weanling pigs. A total of 300 pigs (LYD) were housed in different pens with ten pigs per replicate and ten pigs per head divided into 3 groups. Group 1 was called “CON” and received no toys, group 2 was TOY-2, and pigs in this group had access to toys in the first 2 weeks, and lastly, pigs in TOY-4 were given toys in the fourth week. The pigs had access to feed and water ad-libitum. The individual pig behaviours in each group was recorded on days 14 and 28 (d 14 and 28) with a video camera for accuracy. The results showed higher (p<0.05) overall ADG in TOY-4 compared with CON, while the overall ADFI was higher (p<0.05) in TOY-supplemented groups compared to CON. Diarrhea incidence and fecal score were lower on D 14 in TOY-supplemented groups compared with CON. Behavioural features such as ear biting and fighting were lower (p<0.05) in TOY-supplemented groups compared with CON on D 14. Tail biting was lower (p<0.05) in TOY-2 compared with CON at D 14. Conversely, at D 28, tail biting was lower (p<0.05) in TOY-4 compared with CON. The ADG improved due to the toy supplied to reduce undesirable social behaviours. We concluded that the environmental enrichment of pens with toys can help to improve the welfare in weaning pigs, leading to a greater survivability and more production thereby improving farmer incomes.

Numerous studies suggested that Generation Z (Gen Z) is an age group that seeks individuality more than other generations. Their aesthetics, identity, and belief must represent their self-value. The consumption of fashion was selected as a focus of this study. Our consumption of fashion represents our value, and we construct and present our identity with physically what we wear when we face society daily. Looking at the fashion styles of Generation Z, this study aims to examine whether Generation Z in Hong Kong practice individuality or conformity in the course of their fashion consumption behaviour by a preliminary study. Generation Z perceives their fashion consumption behaviour to reflect their individualism and values. However, the findings suggest that there is a high degree of conformity among Generation Z's fashion consumption behaviour. This conformity is observed in the creation of a distinctive fashion style, which is influenced by the cultural aesthetics, values, and preferences of Generation Z, resulting in a unifying effect that goes unnoticed by the individuals. This complex formation of Generation Z fashion consumption behaviour has a complex implication to fashion marketing, where both the sense of exclusivity and conformity must both be exhibited to satisfy the consumption needs of Generation Z.

The growing concerns about sustainable consumption encourage more consumer research on determinants that influence consumers’ green behavior. Although green consumption has risen for several decades, green adoption rates are often overestimated. This study rationalizes that developing strategies that follow human prehistorical roots may be effective in encouraging green consumption. This notion is supported by Miller (2009) regarding the reversal of direction to explaining consumer behaviour through human evolution and individual differences. Green strategies should focus on determining attributes that display specific characteristics favoured by respective peer groups. The current study introduces two evolutionary-focused priming stimuli as an ancestral motive to understand consumer behaviour. The selected evolutionary-focused stimuli represent the foundational modes in the evolutionary psychology of (1) mating (i.e. short-term mating) or (2) parenting (i.e. long-term parenting) modes. These different distinct modes are predicted to trigger different individual decisions based on each Sexual Selection strategy to pursue (Buss & Schmitt, 1993). Following Griskevicius’ et al. (2010) assertion that status signaling through pro-sociality is one of the primary green signaling mechanisms, this study further attempts to investigate the moderating effect of costly signaling. Therefore, this study aims to provide a conceptual framework with propositions on the role of evolutionary psychology in consumer decision-making in the green product context. The study proposes that viewing family-focused stimuli will induce higher buying intention on green products than viewing mating-focused stimuli. However, this effect may be moderated by costly signals.

One of the main challenges brands face nowadays is the ability to provide a real-life experience through online platforms. The aim of this study is to analyze an AR try-on app versus a website, considering consumers self-concept and testimonials. To this end, an online survey was conducted, in which respondents were exposed to two of four scenarios: AR APP or website experience, and positive versus negative reviews presence. Our findings indicate that ideal self-congruence impacts both, purchase intention and confidence. The present study positively contributes to the AR and self-concept literature, while opening new avenues of research for both academics and practitioners.

Recently, the luxury sector has witnessed a significant rise in luxury consumption, reaching £233 Billion in 2022 (Statista, 2022). This rise demonstrates the growing popularity of the luxury consumption phenomenon globally. However, the climate crisis may impact future trends in luxury consumption (Gardetti and Muthu, 2019). The luxury sector has endorsed a considerable growing demand for sustainability from environmental and ethical luxury consumers. In recent years, concerns have grown around the ethicality of supply chains, where consumers develop contradictory feelings and beliefs, veering between conscious and hedonistic decision-making (Kleinhaus, 2011; Helm, 2020; Wang et al. 2021). Moreover, consumers face a conflict between choosing what they believe is ethically right and indulgence (Hennigs et al. 2013). The supply chain plays an important role in achieving sustainability goals, and yet some researchers argue that the luxury supply chain can involve ethical and environmental breaches in terms of labour and raw materials, such as use of leather and fur (Klerk et al. 2018). However, some luxury brands such as Stella McCartney and Vivienne Westwood are focused on sustainability and the use of vegan raw materials (YNAP, 2021).

By merging Bourdieu's cultural capital with self-determination theory, this study aims to better understand smoking cessation behaviour in Egypt. The results demonstrate that the accumulation of cultural capital satisfies three fundamental needs, contributes to the self-determination theory's motivating forms, and serves as an independent cause for smoking cessation in Egypt.

This study, based on mixed method research design, explores the mechanism by which online service provider experiences are indirectly influenced by service interactions (service manner and need identification) in a rarely explored context (e-learning service and digital product/online MBA). While the service provided by employees is argued to play an important role in consumers’ evaluations of service performance (Vasconcelos et al., 2015), the impact of service interaction on experience (combining credence service theory and customer experience theory) has to date not been explored.

The hospitality industry is widely using customer data to develop successful personalized marketing communication. However, in the event of information leakage, personalized advertising may escalate customers’ privacy distress. Building on Conservation of Resources theory, this study proposes three dimensions for privacy threats that impact the relationship between personalized hospitality advertising and consumer responses. Findings from six experiments across high and low involvement hospitality products demonstrate diverging effects of personalized advertising depending on the type of privacy threat communicated. Results further indicate that customers’ psychological comfort mediates the relationship between high-personalized advertising and the customer response to the advertising when privacy threat is high. Additionally, when the perceived severity and distance of the announced privacy threat are high and low respectively, rational appeals generate higher levels of psychological comfort, while the same happens for emotional appeals when the perceived scope of the threat is high. The study concludes with value-adding theoretical and managerial implications for the hospitality industry.

Carbon/carbon composites are widely used in re-entry engineering applications thanks to their excellent mechanical properties at high temperatures, but they are easily oxidized in the oxygenated atmosphere. It is important to research their residual mechanical properties influenced by oxidation behaviour, in order to ensure the in-service safety. A microscale degradation model is proposed to predict the oxidation behavior based on the mass conservation and diffusion equations, the derived equivalent steady recession rate of composite is employed to evaluate the residual mechanical properties of the oxidized composite theoretically. A numerical strategy is proposed to investigate the oxidation mechanism of this composite. The differences in the degradation rate between the fiber and the matrix resulted in the steady state and an unchanged shape of the front. Residual mechanical properties of composite with three different domains of oxidation were simulated with a multiscale coupled model. The numerical results demonstrated that the mechanical properties of this composite decreased by 24–32% after oxidation for 30 min at 850 °C. Oxidation also caused the stress redistribution inside components, with the stress concentration diminishing their load-bearing capacity. The local areas of increased stress in the pyrocarbon matrix provided new ways for diffusion of oxygen into the pyrocarbon matrix and fibers.

We report the behaviour of carbon black (CB) nanoparticles (spherical carbon shells), subjected to external pressure, using diamond anvil cell at synchrotron facility. CB nanoparticles have been synthesized by lamp black method using olive oil as combustion precursor and ferrocene as an organometallic additive. The catalyst-assisted CB has an iron oxide (γ-Fe2O3) core and amorphous carbon shell (i.e. core–shell structure). Our present study suggests that the carbon shells are partially transparent to the applied high pressure, and result in the reduction of effective pressure that gets transferred to the iron oxide core. High-pressure Raman spectroscopy results indicate that the surrounding carbon shells get compressed with pressure and this change is reversible. However, no structural transformation was observed till the highest applied pressure (25 GPa). The Raman spectroscopy results also suggests that the carbon shells are less pressure sensitive as their pressure coefficients (dω/dP) of G-peak were calculated (3.79 cm− 1/GPa) to be less than that for other carbon allotropes.