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To describe water absorption by the rice grains over time, diffusion and empirical models were used. Also, an optimization software was developed in this study to determine parameters and their uncertainties for the diffusion models (LS Optimizer, for partial differential equations). Parameters (and their uncertainties) for empirical models were determined by LAB Fit Curve Fitting Software.

Heat and mass diffusion phenomena are found in various processes of technological interest, including pasteurization, drying and water immersion of agricultural products, among others. The objective of this work was to study the process of water absorption by rice grains with and without husk, using diffusion and empirical models to describe the absorption kinetics. Rice grains were immersed (approximately 10 g for each experiment) in drinking water maintained at constant temperatures of 28, 40 and 50 C. In the experiments, the water contents absorbed by rice grains over time were obtained by the gravimetric method.

Among empirical models, Peleg was the most satisfactory to describe the kinetics of water absorption by rice without husk, while the Silva et alii model had the best statistical indicators for rice with husk. It was also verified that a diffusion model with boundary condition of the first kind showed the best (or equivalent) results in the description of all processes of kinetics of water absorption by rice grains, with and without husk. For grains without husk, the effective mass diffusivities were (1.186 ± 0.045) × 10⁻⁹, (1.312 ± 0.024) × 10⁻⁹ and (2.133 ± 0.028) × 10⁻⁹ m² min⁻¹, for the immersion temperatures of 28, 40 and 50C, respectively. For grains with husk, diffusivities were (0.675 ± 0.011) × 10⁻⁹ and (1.269 ± 0.017) × 10⁻⁹ m² min⁻¹, for temperatures of 28 and 50 C, respectively.

This work developed a solver for the diffusion equation in cylindrical geometry and presented the LS Optimizer software developed to determine differential equation parameters through experimental data sets.

This paper aims to analyze the sustainability approach within higher education institutions. Universities, as institutions of knowledge, play an important and strategic role in maximizing social and economic benefits in a hands-on way. However, some studies on sustainable development and HEIs reveal a distancing between students and the application of sustainable initiatives in universities. This fact differs from the premises of the Talloires Declaration, which points to students as a community and as global leaders and ambassadors for sustainability.

This paper mapped the approaches, present in the literature, used to develop sustainable campuses and in particular the apparent dichotomy between the changes indicated as top-down or bottom-up in HEIs. To that end, scientific articles focused on sustainable actions in HEIs were analyzed to identify implementation approaches for sustainable development and student involvement in the process.

Results have shown that sustainability promotion models in universities generally occur in a top-down manner, where students are receptors and not sources of development for sustainable policies in universities. Thus, the authors highlight the importance of students becoming central players in sustainable initiatives.

The article becomes original when it identifies the dichotomy between top-down and bottom-up approaches. It does so through multidimensional scaling and exploratory factorial analysis in scientific articles on the topic Sustainability Funding in Higher Education. These findings show that, unlike what is discussed in the literature, sustainability promotion in universities generally occurs in a top-down manner, where students are receptors and not active agents in promoting sustainability. In response to this, the authors discussed the importance of the bottom-up approach, where they are key players.

Embedded in higher educational settings, work-integrated learning (WIL) is a key reflection to students' perceived employability. The purpose of this study is to explore the antecedents of internal and external perceived employability. The research attempts to test a theoretical model examining the relationships among human capital, work values, career self-management, internal perceived employability and external perceived employability.

Data were collected from 588 students who have internship experience from two self-financing higher education institutions in Hong Kong. We adopted structural equation modelling (SEM) to test the proposed research hypotheses.

Results support the idea that human capital and intrinsic work values are significant antecedents of perceived employability. Furthermore, this relationship is fully mediated by career self-management. The implications of the findings for understanding the process through which psychological variables affect an individual's perceived employability are discussed.

Previous studies have extensively examined the effectiveness of WIL in increasing graduates' employability. However, unclear focus has been given to examine psychological attributes, such as human capital, work values and career self-management in WIL. In addition, few researchers have empirically examined the linkages among human capital, work values, career self-management and employability through internships or WIL experiences. Therefore, to bridge these gaps, the present study examines the effect of human capital, work values and career self-management on students' perceived employability when gaining internships or WIL experiences in a higher education setting.

This study aims to the perceptions of the administration of Greek universities on sustainable development and the role of the administration in the implementation of corresponding practices. Specifically, it examines management’s perception and contribution to sustainable development and assesses the sustainability initiatives taking place in universities and the factors that influence their implementation. The obstacles and motivations in the implementation of these actions are also investigated.

For the empirical analysis, a survey was conducted during the period March–June 2022, addressing questionnaires to 12 rectors or vice rectors dealing with the sustainability of the respective 12 Greek universities. Secondary data about their sustainability practices were also collected from the institutions’ official Web pages.

The results show that management’s perception of sustainable development mainly concerns the conservation of resources for future generations and the balancing of the economy. Moreover, the findings indicate that universities play a significant role in achieving sustainability by contributing to the educational process, conducting research and serving as a model of sustainability for both the educational community and society as a whole. Financial and institutional barriers are characterized as the most important obstacles for adopting sustainability practices. The most popular motives to promote sustainability issues are financial support of universities, in addition to the governmental support of the leadership and, in particular, of the rectorate authorities.

To the best of the authors’ knowledge, this study is the first conducted among the Greek universities that focuses on administration’s viewpoint and contributes to the international dialogue on the implementation of sustainability by higher education institutions. The results provide preliminary evidence of top management responses to endorse sustainability activities at the higher education institutes in the broader area of Eastern Europe.

This study aims to examine the impact of halal tourism governance on halal tourist satisfaction by using halal tourism branding as a mediating role to increase tourist satisfaction.

Data is obtained through a questionnaire completed by 400 tourists who have traveled to visit halal tourism destinations on Madurese Island. The collected research data is tested by using partial least squares structural equation modeling (PLS-SEM).

The study revealed that halal tourism governance has positive and significant impact on halal tourist satisfaction and halal tourism branding. The study also revealed that halal tourism branding has no positive and significant impact on halal tourist satisfaction because the community thinks that halal tourism branding is common and commonplace.

This research is on an Island-specific halal tourism destination, which means that the findings cannot be generalized to other geographical areas which have diverse cultures.

The study provides insight into halal tourism and destination governance, which is important for marketers, the Ministry of Tourism and local tourism officials to support halal tourism.

This paper fills a gap by presenting the first comprehensive overview of halal tourism governance that enhances ongoing discussions in the halal tourism field.

This article examines the direct effect of total quality management (TQM) practices on organizational performance (OP) and innovation (INN), as well as their indirect effect through organizational learning (OL) as a mediating variable. In addition, this survey examines company size as a contextual variable in the relationship between TQM and outcome variables.

A conceptual framework is proposed to test causal links between TQM, OP, INN and OL. To empirically test this framework, 110 questionnaires were collected from large Tunisian quality-certified industries, and 167 questionnaires were collected from small and medium-sized industries (SMIs) in order to examine the effect of company size. In this order, a multigroup analysis (MGA) is performed.

Using the structural equation modeling technique, seven hypotheses are investigated. The results reveal that TQM has a direct and significant positive effect on OP and INN. Data analysis shows that there is a significant positive effect between TQM and OL, while OL positively influences OP and INN. Furthermore, the results illustrate a mediating effect of OL between TQM and OP and INN. The results reveal that large industries and SMIs show significant differences in the relationship, including the conceptual model.

The conceptual framework can be used by practitioners for effective implementation of TQM practices to simultaneously improve operational performance, quality performance and INN. This study also focuses on the role of OL in large-scale industries.

While the relationships between TQM, INN and OP have been examined separately in previous studies, this study examines the relationship between these variables in a unique model in Tunisian industries, including OL as a mediating variable. In addition, it is one of the few studies that considers firm size as a contextual variable and provides an analysis of its effect on the relationships between these variables. This study presents new data and empirical insights into the relationship between these variables.