Miracle-dz/UniFAR-FTUs huggingface dataset:
A contextual semi assisted project-based learning (SA-PjBL) about ocean wave energy: Creative thinking of pre-service physics teachers

One of the factors that have become an obstacle in the development of techno-logy to use ocean wave energy as a renewable energy source is the lack of human resources who have expertise in this field. Therefore, in the long term, it is necessary to introduce basic knowledge to the young generation about wave energy and other renew-able energies and even must equip them with important skills such as creative thinking skills. This study aims to introduce students to how to utilize ocean waves as renewable energy while at the same time developing student creative thinking skills through semi-assisted project-based learning. This type of research is weak experiment research with one group pretest-posttest design research. The research was conducted on 31 pre-service physics physics teachers who were taking environmental physics lectures at a teacher training university in West Nusa Tenggara. The performance appraisal data were analyzed descriptively while the test result data were analyzed using the N-gain and the Wilcoxon test. Based on the results of data analysis, it was obtained = 0.725, which means that there was a high increase in students' mastery of the concept of using ocean waves as a renewable energy source. In addition, the results of the performance appraisal data (score > 3) indicated that at each stage of learning, students were provided with indicators of creative thinking skills with very satisfied categories. Therefore, it can be concluded that environmental physics lectures using semi-assisted project-based learning able to improve students' mastery of concepts and creative thinking skills.
Nonparametric estimation of unrestricted distributions and their jumps

We consider‐135 nonparametric estimation of a distribution function F associated with a random variable X based on a random sample. First, for x, a point of continuity of F, we define a class of estimators for F(x) and obtain their rates of convergence. Contrary to the existing literature, we impose no restriction on the existence or smoothness of the derivatives of F. The traditional kernel estimator for F(x) is a member of the class. Second, for x that is either the location of a jump discontinuity or an isolated point of the support, we define a class of estimators for the jump px = F(x) − F(x−) and obtain their rates of convergence. Again, no additional restriction is imposed on F beyond right‐continuity. Our results are of significant practical use, as there are numerous examples in economics, finance and biomedicine of distributions that have point masses. Our main insight is also applied to obtain new inversion theorems for characteristic functions and explicit estimates for convergence rates. A small simulation study provides some evidence on the finite sample properties of our proposed estimators and contrasts their performance with some existing alternatives. An empirical section illustrates the use of our estimators using data on global elevation and data associated with “P‐hacking” in economics journals.
Is quality management a competitive advantage? A study after the Spanish financial crisis in the furniture industry

The aim of this study is to test whether the use of non-financial quality performance indicators reduces bankruptcy probabilities. A questionnaire was sent to the population of small-and medium-sized enterprises (SMEs) from the Spanish furniture industry. The final sample consists of 126 SMEs from the referred industry during the recent economic crisis (2007–2014), a period characterised by a huge increase in business competition and the rate of failure. The main argument is that, in this context, the competitive response of the furniture industry, especially in the case of SMEs, revolves around quality. A logistic multivariate regression model is estimated in which we include both financial and non-financial quality-implementation measures. We use a variable inspired by Perera et al.’s (1997) scale which integrates a variety of factors related to quality practices. The results show that the pre-emptive use of quality non-financial indicators is a key factor for subsequent business survival. These findings suggest important implications for external and internal stakeholders as well as policymakers.
The role of customer experience in the perceived value–word-of-mouth relationship

Purpose The customer experience (CX), as revealed in the literature-based debate, has been variously viewed as either a driver or an outcome of customer-perceived value (CPV). However, the association of CPV, CX and word-of-mouth (WoM) behavior remains nebulous to date, thereby generating an important research gap. In response and to bridge this gap, this study aims to explore CX’s role in the CPV–WoM behavior relationship, the role of WoM behavior arising from CX and whether CX acts as a core mediator (vs a moderator) in the association of CPV and subsequent consumer-behavior outcomes. Design/methodology/approach By conducting two studies spanning a broad range of services, this paper explores the relationship between CPV, CX, and WoM behavior through structural equation modeling. Findings The findings are that CX plays a crucial role in the CPV–WoM relationship, thereby confirming the existence of a direct link between CPV (social/hedonic/utilitarian value), CX and WoM. The results also highlight CX’s mediating role in the relationship between social and utilitarian (but not hedonic) values. Moreover, the results reveal that the EXQ scale, measuring CX, comprises distinct experiences perceived by high and low CX-based customer segments, respectively. Practical implications CPV (utilitarian, hedonic, social) not only affects consumers’ behavioral intentions but also, more importantly, their WoM behavior. Therefore, managers need to consider all three values. Moreover, managers should shift their focus from social value perceptions to CX. The results suggest that managers need to devote additional resources to the development of a suitable CX, which will help mitigate consumers’ online and/or offline brand-related WoM. This study indicates the context in which managers must emphasize the construct that produces positive outcomes. Originality/value By identifying a direct relationship between CPV, CX and the ensuing consumer-behavior outcomes, the study offers important theoretical insight into CX’s nomological network.
Gamification and customer experience: the mediating role of brand engagement in online grocery retailing

Purpose In recent years, the concept of gamification is one of the fastest-growing trends in the field of marketing to persuade, motivate and manipulate customer behavior. The application of gamification has become a priority for marketers as a new way of exploiting customers. Despite the increasing use of gamification mechanisms in marketing activities, there remain limitations. Although there is extensive literature in the field of customer experience and gamification, few studies have empirically examined how gamification influences customer experience by considering the mediating role of brand engagement in the online retailing context. Design/methodology/approach To obtain this aim, a cross-sectional survey was used. The statistical population was customers of online grocery retailers. The convenience sampling technique was used as a sampling technique. Out of 402 received questionnaires, 384 were selected for analysis. Structural equation modeling approach was applied to test the research hypotheses using AMOS 24 and SPSS 22 software. Findings The results indicated that all research hypotheses were supported. Gamification has a significant and positive impact on customer experience, gamification has a positive and significant effect on user customer brand engagement and customer brand engagement has a positive and significant impact on customer experience. Also, it revealed that customer brand engagement mediates between gamification and customer experience. Originality/value A review of the digital marketing literature reveals that there are few empirical studies, which adequately examined significant effective factors of customer experience in online grocery retailing; despite, the majority of researchers consider customer experience as the most important concept in digital marketing. The main contribution of this study is to examine the role of gamification on customer experience through the mediating role of customer engagement in the online grocery context. It adds value to the digital marketing and online retailing literature by providing new insight about determinants of customer experience in online grocery.
Chemical profiles and antioxidant properties of Bruguiera gymnorrhiza fruit extracts from Central Sulawesi, Indonesia

Bruguiera gymnorrhiza is one of the mangrove species that a source of antioxidants. Antioxidant substances are able to protect cells from oxidative stress and other related diseases. This study aimed to evaluate the chemical profiles, predicted biological activity, and antioxidant activity of the B. gymnoriza fruit extracts. The research methods included sampling, extraction (maceration with MeOH:DCM), identification of chemical profiles (GCMS spectra analysis), assaying for computational analysis (PASS server and ADMET), antioxidants (DPPH radical scavenging), and total phenolic content (FolinCiocalteu). Bruguiera gymnorrhiza fruits was collected from Central Sulawesi, Indonesia. The chemical profiles detected in the B. gymnorrhiza fruit extracts, namely isopimaradiene (64.20%); 4-(2-Aminopropyl) phenol (19.06%); dimethylaminodimethylphosphene oxide (9.40%); 3-amino-2-benzylbutanoic acid (5.46%); and 1,4- dideuteriooctane (1.89%). PASS server analysis showed that the five compounds detected from B. gymnorrhiza fruit have the potential as an NF-E2-related factor (Nrf2) stimulant and oxygen scavenger. The ADMET analysis results indicated that B. gymnorrhiza fruits could be developed as folk medicine and nutraceutical products.
Impact of atrial fibrillation on inflammatory bowel disease hospitalizations—a nationwide retrospective study

Abstract Systemic inflammation seen in inflammatory bowel disease (IBD) may cause electrophysiological changes in the atria leading to atrial fibrillation (AF). We analyzed data from the National Inpatient Sample for 2018 to identify all adult hospitalizations with a primary diagnosis of IBD, which were further divided based on the presence or absence of AF. The primary outcome was inpatient mortality while the secondary outcomes included inpatient complications, mean length of stay, and mean total hospital charge. We identified 92,055 IBD hospitalizations, of which 3900 (4.2%) had AF and 88,155 (95.8%) served as controls. IBD hospitalizations with AF were older (70.9 vs. 45.0 years, P < 0.001) and had a higher association with comorbidities compared to the non-AF cohort. Furthermore, the AF cohort had significantly higher adjusted odds of inpatient mortality (2.05% vs. 0.24%; adjusted odds ratio 2.07; 95% confidence interval [CI] 1.09–3.90; P = 0.025), longer length of stay (6.5 vs. 4.9 days; incidence rate ratio 1.23; 95% CI 1.14–1.33; P < 0.001), and higher total hospital charge ($14,587 vs. $11,475; incidence rate ratio 1.26; 95% CI 1.15–1.38; P < 0.001). Additionally, complications such as acute respiratory failure, pulmonary embolism, and necessity of blood product transfusion were more common for IBD hospitalizations with AF than those without.
Fixed-Time Stability for Discontinuous Uncertain Inertial Neural Networks With Time-Varying Delays

In this article, a class of discontinuous inertial neural networks (DINNs) with parameter uncertainties and time delays is studied. The main aim is to investigate the new fixed-time stability (FTS). In order to achieve the targets, first, by introducing the generalized variable transformation and differential inclusions theory, two kinds of drive–response differential inclusion systems are established. Based on the definition of FTS and inequality technologies, by constructing the Lyapunov–Krasovskii functional (LKF), whose derivative is allowed to be indefinite, new delay-dependent criteria shown by some simple inequalities are derived for the purposing of achieving the FTS based on the designed discontinuous control strategies. Moreover, the new settling time (ST) is given. Compared to the previous stability results on INNs, the results established and the approaches applied are absolutely new. Finally, examples are given to show the effectiveness of the established results.
Women’s Role in Organizational Commitment and Job Satisfaction in the Travel Industry—An Evidence from the Urban Setting

Employee satisfaction is the main factor achieving high work performance, providing quality services in the tourism sector, which directly affects the increase in productivity and commitment to the organization. The research is focused on determining the factors of job satisfaction and commitment to the institution by the female workforce. The authors conducted a survey in tourism companies in Novi Sad (the second-largest city in Serbia), based on a sample of 610 women in total, using a standardized MSQ questionnaire for job satisfaction, and Meyer and Allen’s organizational commitment scale. Three multiple regression analyses were used to determine the relationship between job satisfaction factors and organizational commitment factors. The results confirm the existence and strength of correlation between satisfaction factors and types of organizational commitment, and the fact that the position of women in the tourism sector is not at an enviable level, and that they remain in the same organization because of the small number of alternatives and moral obligations.
Aplikasi mobile berbasis android sebagai media tes prior knowledge mahasiswa biologi

Penelitian ini bertujuan mengembangkan sebuah aplikasi mobile berbasis android yang dapat digunakan sebagai media tes prior knowledge mahasiswa di mata kuliah sistematika tumbuhan. Aplikasi tersebut dinamakan SISTA. Pengembangan SISTA mengikuti model pengembangan 4D yang terdiri dari tahap define, design, develop, dan disseminate. Development software yang digunakan dalam mengembangkan SISTA adalah MIT App Inventor 2 Ultimate versi 4.6. Subyek uji meliputi ahli pembelajaran, ahli media, ahli IT, dan mahasiswa dari tiga angkatan berbeda. Pengumpulan data penelitian menggunakan angket, wawancara, dan tes. Teknik analisis data yang digunakan ialah persentase dan rerata. Hasil penelitian menunjukkan bahwa SISTA dinyatakan valid dan dapat digunakan sebagai media tes prior knowledge mahasiswa. Hal ini berdasarkan asil validasi ahli yang menunjukkan persentase 96,19%. Hasil uji keterbacaan oleh mahasiswa terhadap SISTA juga menunjukkan persentase 90,27% sehingga dapat dinyatakan bahwa SISTA valid tanpa revisi. Uji penerapan SISTA di kegiatan pembuka pada mata kuliah sistematika tumbuhan juga menunjukkan bahwa SISTA dapat digunakan sebagai media tes prior knowledge. SISTA sebagai media tes berbasis android memberikan kenyamanan bagi mahasiswa dalam mengerjakan tes, dan memberikan kemudahan bagi pengajar untuk menerima serta menganalisis hasil tes mahasiswa. Mobile App android-based as prior knowledge test media for biology undergraduate students Abstract: This paper discusses developing an android-based mobile application that can be used as a medium for testing students’ prior knowledge in the plant systematics course. That application is named SISTA. The development of SISTA follows the 4D development model, which consists of defining, designing, developing and disseminating stages. The development software used is MIT App Inventor 2 Ultimate version 4.6. The subjects included learning experts, media experts, IT experts, and students from three different grades. The research data was collected using questionnaires, interviews, and tests. The data analysis technique uses percentages and mean. This study showed that SISTA was declared valid and could be used as a medium for a student’s prior knowledge test. This is based on the result of expert validation which shows 96.19%. The results of the student readability test for SISTA also showed 90.27%, so it could be stated that SISTA is valid without revision needed. The test of the application of SISTA in the opening activity in the plant systematics course also shows that SISTA can be used as a medium for testing prior knowledge. SISTA is an android-based test media that provides comfort for students and benefits teachers to accept and analyze student test results.
Investigations involving urgent protection concerns vs. chronic needs: are there differences in post-investigation service decisions?

ABSTRACT Previous research has proposed an urgent-chronic taxonomy of maltreatment investigations to better understand how child welfare services across Canada operationalized the dual mandate of child safety and well-being. Data from the Ontario Incidence Study of Reported Child Abuse and Neglect (OIS-2013a) were used to examine post investigation service decisions using this taxonomy. Logistic regression and chi-square automatic interaction detection (CHAID, a non-parametric classification tree) assessed the characteristics associated with the decision to provide ongoing child welfare services for investigations involving urgent vs. chronic concerns. Of an estimated 123,162 child protection investigations, approximately 11% were considered urgent and the other 89% involved chronic need. A quarter of investigations were transferred to ongoing services for both groups, and an assessment that there was future risk of maltreatment and caregiver mental health issues were significant and substantial factors, along with economic hardship and housing problems. Uniformity in the investigative response suggests that the decision to provide more intensive child welfare services is based more on the circumstances of the family than the nature of the primary protection concern. Since child protection investigations are oriented toward addressing urgent maltreatment, greater precision about the purpose of child welfare involvement in Ontario is needed.
Capacity reservation and sourcing under exchange-rate uncertainty

We study a firm’s capacity reservation and sourcing decisions under exchange-rate and demand uncertainty. The firm initially reserves capacity from one domestic and one international supplier in the presence of exchange-rate and demand uncertainty. After observing exchange rates, the firm determines the amount of capacity to utilize for sourcing under demand uncertainty. The paper makes four contributions. First, it identifies the set of optimal capacity reservation policies for sourcing activities: One onshore, two offshore, and two dual sourcing policies. The first dual sourcing policy is a defensive action where the firm rations limited capacity between the two sources. The second dual sourcing policy is an opportunistic approach as it features excess capacity investment in order to benefit from currency fluctuations. The analysis shows how the optimal sourcing policy changes with increasing degrees of exchange-rate volatility. Second, while earlier publications classify cost as an order qualifier, we find that characterization of a dominant sourcing strategy is more nuanced under exchange rate uncertainty. In particular, a buyer might not reserve capacity at a supplier who has a lower (expected) cost and choose to work only with a supplier who has a higher unit expected cost. Third, the paper shows that risk aversion reduces the likelihood of single sourcing, specifically offshore sourcing, and increases the likelihood of dual sourcing. Fourth, the study demonstrates that financial hedging can eliminate the negative consequences of risk aversion and make the policy findings more pronounced.
Fluoropolymer impregnated graphite foil as a bipolar plates of vanadium flow battery

Renewable energy in recent years plays an increasingly important role in the energy industry. Therefore, the problem of inventing efficient and affordable energy storage devices is of current importance. Vanadium redox flow battery stands out between a wide range of various chemical sources of electric energy. Discovering the way for optimizing the price of energy storage is one of the most important questions of the mentioned battery. New graphite‐polymer composite materials study shows that they may become a replacement for commonly used brittle graphite. The current article presents the study of graphite foil (or flexible graphite) filling with a copolymer of tetrafluoroethylene and vinylidene fluoride F‐42 properties. The article uses an implementation approach of putting the fluoropolymer into the pores of graphite foil, which shows a slight decrease in electrical conductivity, while a significant increase in its electrochemical stability in comparison with untreated graphite foil. Testing results of such material as current collectors (or bipolar plates) in a single membrane‐electrode assembly of vanadium redox flow battery cell show peak value of discharge power density of 843 mW/cm2, energy efficiency of 78%‐79% during cycling at 200 mA/cm2 allowing us to assume the possibility of its successful application in redox flow battery stacks.
Influence of corn conditioning temperature and enzyme supplementation on growth performance, nutrient utilisation and intestine morphology of broilers fed mash corn-soy diets

Abstract Two trials were conducted to investigate the effects of different corn conditioning temperature and enzyme supplementation on nutrient utilisation, growth performance, and small intestine morphology in broiler chickens. In trial one, nutrient utilisation were determined in basal diets. These diets contained unconditioned or conditioned corn (temperatures 55, 70 and 85 °C) supplemented with enzyme (Rovabio®) at the levels of 0 and 0.5 g/kg. Total excreta collection was performed with 144 chicks in 8 treatments with 6 replicates and 3 birds each, during 7–9 d. In trial two, 576 day-old broilers were distributed in 8 treatments, 6 pens and 12 chicks each. Birds were fed with diets containing conditioned corn in aforementioned temperatures and enzyme levels. A completely randomised design with 4 × 2 factorial arrangement was used in both trials. Conditioning of corn and enzyme supplementation had no significant effects on apparent metabolisable energy (AME) of corn and apparent total tract retention (ATTR) of corn nitrogen (N). In second trial, no significant differences were observed in growth performance of broilers during 1–24 d. Feed conversion ratio (FCR) in birds fed diets containing conditioned corn at 85 °C was significantly higher than that of 55 and 70 °C during 1–10 d. Corn conditioning significantly increased villus width (VW) and crypt depth (CD) but decreased VW:CD ratio. Enzyme supplementation increased jejunum villus height (VH), VW and ileal lactobacillus count and decreased pancreas weight at 24 d (p < .05). Generally, corn conditioning and enzyme supplementation did not significantly affect growth performance and carcase traits of broilers during 1–24 d, but improved histology and microbial population of small intestine. HIGHLIGHTS Conditioning of corn used in mash diets of broiler chickens increased the population of bifidobacteria. Enzyme supplementation to the diets of broilers increased the height and width of intestinal villi. Enzyme supplementation to the diets of broilers decreased relative weight of pancreas.