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High head gates are commonly used in hydropower plants for flow regulation and emergence closure. Hydrodynamic downpull can be a critical parameter in design of the lifting mechanism. The purpose of this paper is to show that a simplified two-dimensional (2D) computational fluid dynamics solution can be used in the prediction of the downpull force on the gate lip by comparison of computed results to experimentally measured data.

In this study, ANSYS FLUENT CFD software was used to obtain 2D numerical solution for the flow field around a generic gate model located in a power intake structure which was previously used in an experimental study. Description of the flow domain, computational grid resolution, requirements on setting appropriate boundary conditions and methodology in describing downpull coefficient are discussed. Total number of 245 simulations for variable gate lip geometry and gate openings were run. The downpull coefficient evaluated from the computed pressure field as function of gate opening and lip angle are compared with the experimental results.

The computed downpull coefficient agrees well with the previous experimental results, except one gate with small lip angle where a separation bubble forms along the lip, which is responsible from this deviation. It is observed that three-dimensional (3D) effects are confined to the large gate openings where downpull is minimum or even reversed.

In large gate openings, three dimensionality of the flow around gate slots plays an important role and departure from 2D solutions become more pronounced. In that case, one might need to perform a 3D solution instead.

This paper presents a very fast and accurate way to predict downpull force on high head gates in the absence of experimental data.

An extensive amount of simulations are run within the scope of this study. It is shown that knowing its limitations, 2D numerical models can be used to calculate downpull for a wide range of gate openings without the need of expensive experimental models.

There is extensive literature on the effect of military expenditure on economic growth. However, there is also a wide gap in the literature on the relationship between productivity and innovation, which is considered the driving force of economic growth and military expenditures. To this end, this study examines the effect of military expenditures on economic growth, innovation and labor productivity for the period 1995–2019 in most militarized countries.

The tests used in the study's empirical analysis are techniques that take into account cross-sectional dependence and heterogeneity. The stationarity of the variables was tested with the Pesaran’s (2007) unit root test. Then, empirical findings were revealed based on the analysis through Westerlund’s (2008) cointegration test and Emirmahmutoglu and Kose’s (2011) panel causality test.

According to the empirical results, there is a long-run relationship, in other words, a cointegration between military expenditures and productivity, innovation and economic growth. Additionally, there are causality relationships between military expenditures and productivity, innovation and economic growth.

These results support the arguments of military Keynesianism and the Benoit hypothesis.

Despite the widespread theoretical debate, no empirical study tests the effect of military expenditure on productivity and innovation to the author's best knowledge. Hence, this study aims to fill this gap in the literature. Moreover, the fact that the econometric method used is based on second generation tests and the timeliness of the period range makes the study's findings more significant.

Productive waqf is one type of ethical business/investment, which should comply to Islamic law, with so many models to choose from. The purpose of this study is to determine factors of simple productive waqf, propose several simple productive waqf models and select the best simple productive waqf models appropriate to be adopted by waqf institution in Indonesia.

This study applies the analytic network process, including field survey, focused group discussion and in-depth interview, with two groups of respondents, namely, expert and waqf practitioner.

The results show that the determinants of simple productive waqf in Indonesia are the waqf institution, productive waqf asset to be developed, how to finance the productive waqf, how to manage the productive waqf and the compliance of productive waqf. Proposed productive waqf models include cash-waqf and self-managed model, Islamic bank financing and self-managed model, Sukuk and external partnership model, cash-waqf and external partnership and cash-waqf + co-financing and external partnership. Moreover, the best simple productive waqf model is cash-waqf and self-managed model, followed by cash-waqf and external partnership, where they could achieve the most in all socio-economic variables, well-being compliance and moral/ethics within the theory of unity of knowledge, Tawhid.

The simple productive waqf models proposed are not exhaustive, since there are so many variations of the model. Moreover, the case and respondents are all Indonesian, so that the results are possibly only applicable to Indonesia.

To increase the probability of successful productive waqf development, waqf institutions could apply cash-waqf and self-managed model first, while other models could be applied in staged in line with waqf institution experience.

The successful development of productive waqf could increase the social programs provided by waqf institutions to the society.

Productive waqf development is desperately needed due to many unproductive waqf lands in Indonesia, while studies have been limited, and there is no study discussing the productive waqf model appropriate for Indonesia.

The purpose of this paper is to investigate secondary school teachers’ perspectives on ICT usage in secondary schools in Ghana.

A total of 376 teachers from 24 public and private schools from four regions in Ghana participated in this study. Survey and focus group interviews were used for data collection. Descriptive statistics and independent sample t-tests were used to analyze the findings.

The result indicated that teachers’ perceived ICT usage, perceived access to ICT, perceived ICT training and perceived ICT competence were low. Furthermore, the analysis showed that male teachers’ perceived confidence in the use of ICT was higher than female teachers. On the other hand, the perceived administrative support for female teachers was more than that for male teachers. Finally, this study discovered that there was no significant difference in public and private school teachers’ access to ICT, administrative support, self-efficacy, competencies and training.

This contributes to the literature on the perceptions and use of teachers’ ICT in secondary schools. The results provide insights into factors that teachers perceived as obstacles to integration of ICT into their teaching, particularly in developing nations. The study shows that teachers’ perceived ICT competencies and ICT training do not depend on the type of school the teacher is employed to teacher.

Green brands are those brands that obtain attributes and benefits related to the reduction of the brands’ environmental impact. Green brand love is a very important issue for marketing managers. One of the main reasons for this degree of importance is because of the many positive outcomes that green brand love will have for organizations. The purpose of this paper is to evaluate the effect of green brand image, trust and attitude on green brand love among Muslim consumers.

In this study, a cross-sectional survey is conducted based on the questionnaire method to collect data from a sample of 201 consumers of various automobile brands in Isfahan, Iran. Structural equation modeling is used to test the research hypotheses.

The findings show that green brand image has a significant direct effect on green brand attitude, love and trust. In addition, the results indicate that green brand attitude and trust have a significant direct effect on green brand love.

Considering the importance of the issue of automobility and environmental harm, this paper offers new insights to marketing managers of the automotive industry in Iran.

This study is among the first to explore the effect of green brand image, trust and attitude on green brand love.

This study aims to identify the factors influencing agile readiness in start-ups. Start-ups are being confronted with increased competition, customer demands, technological innovations and changes in the market environment. Adopting agile readiness for sustainable operations is a profitable and dependable way to improve the competition and reduce the number of failures of start-ups. The start-ups may investigate “how” after understanding the “whys.” The answers to these questions will be crucial to develop a strategy and a plan for luring clients, users, investors and partners. Therefore, this study will help in answering these crucial questions by using Total Interpretive Structural Modeling (TISM), whose main aim is to answer the key question of “what,” “how” and “why.” Using the “Total Interpretive Structural Modeling (TISM)” technique, this research tries to “describe,” “analyze” and “categorize” the agile readiness for sustainable operations enablers in start-ups.

Expert feedback and literature reviews from various start-ups led to the discovery of 10 enablers. In this study, the TISM technique was used to examine the inter-relationships between the enablers. The agile readiness for sustainable operations enablers was ranked and classified using the “Multiplication Applied to Classification (MICMAC)” technique. They were divided into four different categories: “autonomous,” “independent,” “linkage” and “dependent enablers.”

The results show that executive-level aid is the key agile readiness factor for sustainable operations. The next priority has been capability, experienced and skilled employees, market knowledge and environment agility. Leadership and clear vision have been given further priority. The next important is flexibility. The last and the least priority is given to receptive and strategic agility. This directional flow assists management in attaining adaptable sustainability, leading to continued growth in this dynamic environment.

The study focuses primarily on the agile readiness for sustainable operations of start-ups. This study offers a recommended list of crucial elements for start-ups, which may aid in creating guidelines for implementing agility for sustainable operations. This study provides academics with a TISM model that illustrates how start-ups can be ready to implement agility for sustainable operations. Future researchers could add more agility readiness variables to this study and validate this model across different start-ups.

Before implementing agile readiness for sustainable operations in start-ups, this study will aid managers and practitioners in the start-up business in understanding the relationships of enablers and identifying important readiness enablers.

The current study analyzes the agile readiness for sustainable operations in Start-ups. To the best of the authors’ knowledge, it is the first endeavor to use the “TISM approach” to examine the interrelationships across agile readiness for sustainable operations characteristics in start-ups.

Motivated by the conflicting evidence on the effect of financial development on environmental quality, this study investigates the moderating role of institutional quality in the link between financial development and environmental quality using a robust proxy in Malaysia from 1984 to 2017.

Ecological footprint is used to measure environmental quality, while financial development is proxied using three measures (domestic credit provided by the private sector, domestic credit provided by the financial sector and domestic credit provided by the banking sector). An index of institutional quality is generated from voice and accountability, government effectiveness, regulatory quality, rule of law and control of corruption. Autoregressive Distributed Lag Bounds Test, Fully Modified Ordinary Least Square and Canonical Cointegrating Regression were used as the estimation techniques.

The results show that financial development, institutional quality, economic growth and foreign direct investment improve environmental quality in the short run, whereas trade openness and natural resources worsen it. In the long run, financial development, institutional quality, economic growth, trade openness and natural resources deteriorate the environment. Furthermore, findings from the interactive term suggest that institutions and financial development complement each other to affect the environment in the short run. However, institutions and financial development perform a substitutability role in influencing the environment in the long run.

The outcome of this study suggests that there are time lags in the relationship between institutional quality, financial development and ecological footprint in Malaysia. Furthermore, the study offers important policy implications to policymakers in Malaysia and other developing countries on how to mitigate environmental degradation.

This study contributes to the body of knowledge on the moderating role of institutional quality in the relationship between financial development and ecological footprint in Malaysia. It examines the direct and indirect effects of financial development on environmental degradation through institutional quality, which have received less attention in the context of Malaysia. The findings from this study are robust to different proxies and estimation techniques.

This study aims to demonstrate how greenwashing perceptions shape the effect of environmental concern on post-millennials purchasing behavior.

Based on 174 responses gathered through a street survey method from 5 different universities in Turkey, data are analyzed using the statistical package for social sciences software (SPSS 16.0). Principal component analysis is performed to assess the differentiation in factors. Multiple regression analysis is used to examine the effects of the items on the post-millennials purchasing and recommendation behavior.

The main findings revealed that the environmental concern trait of post-millennials triggers their green purchasing behavior. When the concern on green products is high, the awareness of perceiving that “if the product is actually green or pretending to be green” is high. When the post-millennials take the greenwashing perception into account, their environmental concern has lower effects on their green behavior. The moderating role of greenwashing between environmental concern and green purchasing is apparent. Greenwashing perception decreases the effects of environmental concern on green behavior.

The research raises the concept of greenwashing perception that moderates the relationship between environmental concern and post-millennials purchasing behavior. This study also demonstrates that greenwashing awareness has a critical role in creating a purchasing behavior of post-millennials that have environmental concerns.

The purpose of this study is to reveal the effect on earnings quality of switching to International Financial Reporting Standards (IFRS) from Turkish generally accepted accounting principles (GAAP) by comparing two sets of financial statements based on Turkish GAAP and IFRS.

This study is based on mathematical modeling. The variables (total assets, net income, total accruals, cash receivables, return on assets and size) in the models are core to the quantitative research that examines the relationship between them. In this study, the total accruals are computed based on the indirect approach, and the prediction error of the model represents discretionary accruals that reflect earnings management. The data set includes financial data prepared under IFRS and Turkish GAAP. The univariate and multivariate analyses are conducted by SPSS.

The results of this study indicate that IFRS does not cause any significant differences in total assets, but the net income under IFRS is larger compared to that under the Turkish GAAP. It is also found that while there is no significant difference in total accruals, there is a difference in discretionary accruals. In other words, Turkish firms use income-reducing discretionary accruals when adopting IFRS.

This study provides more insights into the effect of IFRS on earnings quality. It also provides evidence of the effect of accounting culture on IFRS adoption. As a code-law country in Turkey, publicly traded firms have to prepare financial statements based on both Turkish GAAP, which is rule-based and restricts management decisions with strict rules, and the principle-based IFRS which leaves more room to manipulate. To the authors’ knowledge, this is the first study that reveals the effect of accounting standards on earnings management by comparing two sets of financials of the same period prepared under different standards.

Islamic attributes and activities need to be developed in compliance with the halal concept to attract potential Muslim tourists and ensure the success of halal tourism. Although the literature shows that many factors can influence the success of halal tourism, a complete picture of the success factors of halal tourism in a city is still very limited. As such, this explorative study aims to examine stakeholders’ perspectives regarding the antecedents of halal tourism success and the benefits of halal tourism for the city.

Qualitative system dynamics modeling was used for this study, and Makassar (a successful halal tourism city) was considered as the basis for the study. A causal loop diagram (CLD) of halal tourism was developed using the group model building technique to elicit stakeholders’ knowledge and assumptions. Network analysis and feedback loop analysis were used to identify the driving factors of successful halal tourism.

Two factors need to be taken into account by halal tourism stakeholders in the city: support from the central and local government and improving and maintaining potential tourists’ perceptions of the city. There are four benefits of halal tourism success for the city: an increase in the number of micro-, small- and medium-sized halal businesses in the city, increased support from the central and local government to further develop halal tourism infrastructure in the city, increased word-of-mouth promotion of Makassar as a tourism destination and a decrease in the price of halal tourism components (e.g. food and accommodation).

The resulting CLD shows the interlinkage between political, societal and economical factors that could influence the success of halal tourism development. In particular, the findings show how governments and tourism stakeholders need to promote halal tourism socialization in the community and improve the public perception of this type of tourism. Therefore, the findings can help destination stakeholders and tourism developers in other cities develop halal tourism potential.