Miracle-dz/UniFAR-FTUs huggingface dataset:
The Comparison of Solar-Powered Hydrogen Closed-Cycle System Capacities for Selected Locations

The exhaustion of fossil fuels causes decarbonized industries to be powered by renewable energy sources and, owing to their intermittent nature, it is important to devise an efficient energy storage method. To make them more sustainable, a storage system is required. Modern electricity storage systems are based on different types of chemical batteries, electromechanical devices, and hydrogen power plants. However, the parameters of power plant components vary from one geographical location to another. The idea of the present research is to compare the composition of a solar-powered hydrogen processing closed-cycle power plant among the selected geographical locations (Russia, India, and Australia), assuming the same power consumption conditions, but different insolation conditions, and thus the hydrogen equipment capacity accordingly. The number of solar modules in an array is different, thus the required hydrogen tank capacity is also different. The comparison of equipment requires building an uninterrupted power supply for the selected geographical locations, which shows that the capacity of the equipment components would be significantly different. These numbers may serve as the base for further economic calculations of energy cost.
Inductive teaching approaches in business English writing in an EFL context: Paper-based and product-based instructions

The study reported in this article compared two different inductive instructional methods implemented in a Business English writing training, including paper-based instruction (PPI) and product-based instruction (PDI). It assessed the effectiveness and examined practical issues of the implementation of each method. A total of 46 Thai students majoring Business English program in a Thai university took part in this study. The students were randomly divided into two groups and put into either PPI or PDI training module. Data were collected from direct observations, focused-group discussions, and students’ writing scores. Qualitative data from the focused-group discussions and observation field notes were analyzed thematically using the grounded theory while students’ writing scores were cross-examined. Results of the study indicate that the fundamental dichotomies between both approaches include the tangibility, authenticity and contextuality. Students’ difficulties in formulating grammar and rules in writing on their own, and students’ perception of learning as a burden were found as the challenges occurred in both modules. The findings also indicate that both PPI and PDI modules trigger the dynamics and positive atmosphere; however, PDI resulted in more vigorous dynamics as student movements and interactions were relatively higher. Finally The findings of this study are beneficial instructors who are seeking innovative instructional methodology to improve their teaching of business English writing. Based on the findings of this study, PDI will enable instructors to create chances for students to learn in authentic professional environments, contexts and culture that are casted in the real-life business situations.
Brain Drain in Higher Education. The Impact of Job Stress and Workload on Turnover Intention and the Mediating Role of Job Satisfaction at Universities

This study seeks to determine the impact of job stress and workload on turnover intention along with the mediation role of job satisfaction. A total of 140 academics and management personnel participated in this study’s survey. A partial least square structural equation modeling was used for data analysis. The results show that job stress and workload have a positive effect on turnover intention, while job satisfaction mediates the relationship between job stress, workload, and turnover intention. Future research could adapt and adopt the herein used methodology and research topic to other countries or in other industries.
Research on the Relationship between Shared Leadership and Individual Creativity-Qualitative Comparative Analysis on the Basis of Clear Set

Creativity is the key to obtaining and maintaining competitiveness of modern organizations, and it has attracted much attention from academic circles and management practices. Shared leadership is believed to effectively influence team output. However, research on the impact of individual creativity is still in its infancy. This study adopts the qualitative comparative analysis method, taking 1584 individuals as the research objects, underpinned by a questionnaire-based survey. It investigates the influence of the team’s shared leadership network elements and organizational environmental factors on the individual creativity. We have found that there are six combination of conditions of shared leadership and organizational environmental factors constituting sufficient combination of conditions to increase or decrease individual creativity. Moreover, we have noticed that the low network density of shared leadership is a sufficient and necessary condition of reducing individual creativity. Our results also provide management suggestions for practical activities during the team management.
Relating Expert Quality Ratings of Australian Chardonnay Wines to Volatile Composition and Production Method

Chardonnay is a neutral grape variety offering a diversity of wine styles that are popular among consumers. The links between wine production methods and Chardonnay wine volatile composition, as determinants of quality, require further elucidation. Over 80 commercial Australian Chardonnay wines were assessed by expert panelists who were asked to define four distinct levels of quality in a blind tasting. Wine aroma volatiles in each wine were analyzed by solid-phase microextraction-gas chromatography-mass spectrometry, and multivariate statistical techniques were used to examine the relationship between volatile composition and quality as defined by the experts. Of 39 aroma compounds quantified, nine volatiles (including cis- and trans-oak lactones, furfural, and diethyl succinate) correlated significantly and positively with Chardonnay wine quality, while 11 volatiles (including fruity esters and monoterpenoids) correlated negatively. Compounds associated with oak contact and malolactic fermentation were present at highest concentrations in higher-quality wines as perceived by wine experts. Lower scores were assigned to younger but less complex wines, which were richer in fruity esters and other grape-derived compounds. A model was developed using partial least squares regression based on these results, which permitted classification of the Chardonnay wines into high-, medium-, and low-quality brackets depending on their relative concentrations of cis- and trans-oak lactone, ethyl lactate, and 2-methyl-1-propanol (positive) and of 1-propanol and 1-hexanol (negative). There was a significant and positive correlation (r = 0.469, p <0.0001) between retail price and quality score, underlying the usefulness of price as an indicator of quality, although it failed to entirely explain quality (as judged by experts) and should therefore be used in conjunction with other quality cues.
The influence of intellectual capital, good corporate governance and accounting conservatism on company’s financial performance

Purpose - This research aimed to determine the effect of intellectual capital, good corporate governance (board of commissioners, independent commissioners and managerial ownership) and accounting conservatism on company financial performance (study of companies listed on the Jakarta Islamic Index (JII) in 2017-2019). Method - The population in this research was 42 companies registered in JII 2017-2019. Purposive sampling method was used for sample selection and 16 companies were selected. This research used secondary data with multiple regression model data analysis. Result - The results of this research stated that intellectual capital had a positive and significant effect on the company's financial performance. Good corporate governance as measured by the board of commissioners, independent commissioners and managerial ownership had a negative but insignificant effect on the company's financial performance, and accounting conservatism had a positive but insignificant effect on the company's financial performance. Implication - Companies registered in JII are advised to improve the financial performance of their companies, especially those listed in 2017-2019. Originality - The secondary data sources used in this research were obtained from the official website of the Indonesia Stock Exchange (BEI), namely www.idx. co.id.
SnS2/TiO2 Nanocomposites for Hydrogen Production and Photodegradation under Extended Solar Irradiation

Earth–abundant transition metal chalcogenide materials are of great research interest for energy production and environmental remediation, as they exhibit better photocatalytic activity due to their suitable electronic and optical properties. This study focuses on the photocatalytic activity of flower-like SnS2 nanoparticles (composed of nanosheet subunits) embedded in TiO2 synthesized by a facile hydrothermal method. The materials were characterized using different techniques, and their photocatalytic activity was assessed for hydrogen evolution reaction and the degradation of methylene blue. Among the catalysts studied, 10 wt. % of SnS2 loaded TiO2 nanocomposite shows an optimum hydrogen evolution rate of 195.55 µmolg−1, whereas 15 wt. % loading of SnS2 on TiO2 exhibits better performance against the degradation of methylene blue (MB) with the rate constant of 4.415 × 10−4 s−1 under solar simulated irradiation. The improved performance of these materials can be attributed to the effective photo-induced charge transfer and reduced recombination, which make these nanocomposite materials promising candidates for the development of high-performance next-generation photocatalyst materials. Further, scavenging experiments were carried out to confirm the reactive oxygen species (ROS) involved in the photocatalytic degradation. It can be observed that there was a 78% reduction in the rate of degradation when IPA was used as the scavenger, whereas around 95% reduction was attained while N2 was used as the scavenger. Notably, very low degradation (<5%) was attained when the dye alone was directly under solar irradiation. These results further validate that the •OH radical and the superoxide radicals can be acknowledged for the degradation mechanism of MB, and the enhancement of degradation efficiency may be due to the combined effect of in situ dye sensitization during the catalysis and the impregnation of low bandgap materials on TiO2.
Board structure and firm performance: An empirical study of Greek systemic banks

This paper examines the effect of board characteristics on bank financial performance. Tracing the Greek financial crisis during the period of 2008 to 2018, the paper investigates whether board size, board independence, CEO duality, female directors, and foreign directors affect banks performance. The empirical evidence shows that board structure has a significant effect on bank performance. Specifically, board size, board independence and chairman independence were found to exert a positive effect on bank performance. The effect of diversity on performance was ambiguous, since the effect of female directors was positive; but the effect of foreign directors was negative. These findings can potentially help banks improve performance by considering the features found significant in this study. Moreover, regulators can draw insight from the findings to design rules that strengthen corporate governance effectiveness. Key words: Bank corporate governance, board characteristics, financial performance, Greek systemic banks.
Hotel Guests’ Experience, Satisfaction and Revisit Intentions: An Emerging Market Perspective

This study aimed at investigating the guests’ experience dimensions and their effects on destination marketing bottom lines of satisfaction and revisit intention. This is borne of the overarching importance of customer experience (CX) which has been acknowledged by scholars and practitioners and understanding of the concept been sought from various sectoral perspectives. Admittedly, experience-based investigations in the hotel service sector have been scarce, particularly from a non-western context. The study utilised an intercept approach to collect data from 400 hotel guests in a city in Southern Nigeria. The research model and the formulated hypotheses were tested using partial least square structural equation model (PLS-SEM) with the aid of SmartPLS software. The study findings reveal that guest experience dimensions (utilitarian, hedonic and relational) have a positive and significant influence on guests’ revisit intention and satisfaction with the exception of hedonic experience whose relationship with satisfaction was statistically insignificant. Overall, the research model explained 56.5 per cent of the variance in guest satisfaction and 68.7 per cent on guest revisit intention. This study adds an empirically supported strategic direction for proper guest experience management in hotels from a non-western context.
The Growth of Pesantren in Indonesia as the Islamic Venue and Social Class Status of Santri

Article History: Purpose: This study is an attempt to examine the role of Pesantren (Islamic boarding schools) on social status of santri in Indonesia. The study aimed to find out what social class the santri in Pesantren are viewed by the society; to what extent they enjoy being a part of historical and cultural legacy and social setting; and how pesantren acted as a social agent to transform the social status of Kiyai and santri. Research Methodology: This research used a quantitative approach to data analysis by using questionnaires. Received: 20 Feb.2021 Received in revised form: 24 Apr. 2021 Accepted: 4 May 2021 DOI: 10.14689/ejer.2021. 93.21
The Effects on Students' Psychological Needs and Social-Emotional Competence of Relatedness Support from a Teacher and Peers in Physical Education Class

For a smooth daily life, students need to improve their interpersonal skills and social and emotional competences. Research on the relationship between peers as a social relationship factor in a learning environment is considered important, and studying the relationship between teachers as well as peers is required. Accordingly, this study aimed to examine the effects on students’ psychological needs and social-emotional competence of relatedness support from the teacher and peers in a physical education class. This study administered a questionnaire-based survey to 379 middle school students in their 1st grade to3rd grade in South Korea and applied descriptive statistics, correlation analysis, and structural equation modeling to the data. The researcher visited the school of students who had agreed to participate in the study to fully explain the research purpose and proceeded with it by complying with the Statistics Act and research ethics. First, relatedness support from the teacher and peers positively impacted students’ psychological needs. Second, their psychological needs positively influenced their social-emotional capacity in the physical education class. Third, the students’ psychological needs mediated the relationship between relatedness support from teachers and peers and social-emotional competence in physical education class. The study results suggest the need for social-emotional learning programs to help improve the relationship between teachers and peers and enhance the social and emotional competences of students. Physical education teachers should create a relationship-based learning environment where students can improve the understanding and care of themselves and others and communication skills, actively participate in the learning process, and develop practical skills to control their emotions.
The Role of K+, Ca2+ channels, Some Endothelium Hyperpolarizing Factors in Taurine Induced Vasorelaxation in Rats Aorta

The current study included the relaxant effect of taurine on rat’s aortic rings and the mechanism behind this relaxation. Taurine produced a potent spasmolytic effect on aortic rings at concentrations from zero to 80 mM. The results of K+ channel subtypes using specific blockers indicated that the Kv channel has a considerable role in taurine-induced relaxation, while KATP has a limited role, Exposure of aortic rings to combinations of two K+ blockers showed that KCa, Kv, and KIR play important role in taurine mediated relaxation. The endothelium-derived hyperpolarizing factors used showed responses to a variable extent in taurine mediated relaxation; since NO and cGMP played a major role whereas PGS played a minor role in taurine mediated relaxation. Finally, the results also indicated that taurine-mediated relaxation is endothelium-dependent.
A Biblio-Systematic Analysis of Factors Affecting the Compliance of Residential Planning Standards and Regulations: A Conceptual Framework

The planning regulations and standards indicate the demands of urbanizations and settlements from a quality point of view and from a big scale to a specific item of the urban parts. The primary purpose of this paper is to create a conceptual framework that serves as a mean to measure the variables influencing the extent of planning compliance in an urban area. The method used is a bibliometric approach as an examination of the area of research. These variables originate from a comprehensive analysis of the literature across countries and time frame from 1976 to 2019 and can affect planning violations positively or negatively by each variable. The findings show five classes of variables which affected the planning deviation in most case studies. The administrative, legislation, social, economic and demographic considerations perform a significant part in ensuring adherence at local and government stage with planning violations. It is important to improve administrative procedures and to revise planning norms and regulations in an attempt to achieve local conditions to deal with planning deviation issues. Cooperation and coordination efforts between authorities and stakeholders are essential to the monitoring and enforcement of planning standards and regulations.
Moderated Mediation of Ethical Considerations between Individual Values and Values in the Actual Practice of the CPA Profession

CPA Baby Boomers, Generation X, Generation Y or Millennials and the latest addition, Generation Z, possess unique characteristics, workplace values and ethics. This study focused on how workplace values and ethical considerations directly and indirectly affect the values of CPAs. The participants are five hundred forty-one (n=541) Baby Boomers, Generation X, Generation Y and Generation Z Filipino professional accountants among four different sectors namely the academe or education, commerce & industry, government and public practice. A partial least square-structural equation modeling (PLS-SEM) including mediation and moderation analysis were used to determine the direct and indirect effects. Using Schwartz motivational values, the study revealed that there is a positive and significant relationship between self-transcendence (benevolence and universalism) and openness to change (self-direction and stimulation) as workplace values to the values of practicing CPAs. There is a negative but significant relationship between workplace values of conservation (tradition and security) and self-enhancement values (power and achievement) with the CPA values. Also, workplace values significantly affect ethical considerations, while ethical considerations (or strict adherence to CPA’s code of ethics) significantly influence the CPA values while in practice. Lastly, the moderation analysis further revealed that workforce generation has moderating effect on the relationship between conservation values and the actual practice values. Ethical considerations have no mediating effect on the significant positive relationship between individual values and values in practice (benevolence and universalism), while workforce generations have moderating effect in the conservation values of CPAs
HEAT AND MASS TRANSFER IN COMBUSTION PROCESSES MATHEMATICAL MODEL AND NUMERICAL INVESTIGATION OF COMBUSTION FRONT PROPAGATION VELOCITY IN AN AEROSOL OF AN ALUMINUM NANOPOWDER SUSPENSION IN KEROSENE

A mathematical model of combustion of an aerosol of an aluminum nanopowder suspension in kerosene is presented, in which the state parameters of aerosol are determined by solving the system of energy conservation equations of gas, droplets, and particles, mass conservation equations of gas suspension components, and of the equations of motion of droplets and particles. The rate of oxidation of aluminum nanoparticles and the associated rate of heat release have been determined, as well as the dependences of the velocity of combustion front propagation in the aerosol on the mass concentrations of kerosene and aluminum nanopowder and on the initial aerosol temperature.
Calculating adult sex ratios from observed breeding sex ratios for wide‐ranging, intermittently breeding species

A sex ratio is one of the most basic demographic estimates produced because it is easy to collect and provides deeper insight into population dynamics for the species under consideration. For incon-sistently or intermittently breeding species, the breeding sex ratio (BSR) and adult sex ratio (ASR), both reported as the proportion of males, can be quite different. The entire adult population of some wide-rang-ing species may never be present and capable of being sampled in the same time and place. We explore equations to indirectly estimate ASRs and annual abundance estimates from annual surveys of BSRs. We sampled Atlantic sturgeon ( Acipenser oxyrinchus oxyrinchus ) from 2013 through 2019 and implanted acoustic transmitters during those sampling periods. The BSRs calculated during capture from 2015 through 2019 were 0.65, 0.75, 0.69, 0.75, and 0.64 each year. Relying on telemetry detections from the lowest poten-tial spawning region, the expected BSRs in the same years were 0.64, 0.74, 0.67, 0.69, and 0.60, suggesting telemetry is a reliable and passive way to estimate BSR. The BSRs were used to indirectly estimate ASR to be approximately 0.51 (95% con ﬁ dence limits of 0.43 – 0.58). Estimates of annual abundance derived through sex ratios matched previously published mark – recapture estimates of the same breeding population, but provide additional detail on abundances of each sex. For populations where BSR is more accessi-ble, ASR and abundance estimates can be estimated with capture data and acoustic telemetry.
The Implication of Exchange Rate Volatility on Nigeria’s External Reserves: 1980-2020

Given the volatile nature of the exchange rate in Nigeria and the dynamics in the external reserves of the nation which are kept in foreign currency (dollar), this paper examined the impact of exchange rate shocks on the Nigerian external reserves using annual data from 1980 to 2019. Employing the Autoregressive Distributed Lag model, the results of the study indicates that exchange rate has an asymmetric impact on reserves, suggesting that the partial sum of exchange rate differ in magnitude and size relative to reserves in both positive and negative direction. The impact of a positive shock in exchange rate on reserves is statistically significant while the effect of a negative shock in exchange on reserve is statistically insignificant in the long-run. The same relationship holds for the short-run effect, although, both the positive and the negative short-run effects are statistically insignificant. The study therefore recommends that monetary authority should strengthens the exchange rate by adopting a flexible exchange floating and making it to thrives in order to boost reserves. Some of these policies could include allowing the market forces to determine the exchange rate and harmonizing the exchange rate position of the country.