Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigation of particle deposition efficiency enhancement in turbulent duct air flow by surface ribs with hybrid-size ribs

This study presents the particle deposition enhancement by hybrid-size and same-size surface ribs in turbulent air duct flows using computational fluid dynamics simulation. The Reynolds stress turbulence model with UDF corrections and discrete particle model were adopted to simulate the turbulent air flow fields and particle deposition behaviours, respectively. After numerical validation with the relative literature results, pure particle deposition enhancement ratios, flow drag increase, comprehensive deposition efficiency and deposition enhancement mechanisms were investigated and discussed in details. The findings showed that the hybrid-size ribs with small rib spacing have the best enhancement performance on particle deposition for small particles ( τ p + < 1 ). Considering the flow drag increase, the maximum deposition efficiency can reach 485 for 1 µm particles for the hybrid-size ribbed cases, while it is just 425 for the same-size ribbed case. Nevertheless, no obvious particle deposition enhancement can be found for large particles ( τ p + > 1 ) for all types of surface ribs. The hybrid-size surface ribs are more efficient compared with the same-size ribs, which can be applied in the air cleaning equipment to improve the aerosol particle removal performance.
Heterogeneous Returns to Social Networks: Effects on Earnings and Job Satisfaction in the Chinese Labor Market

With the advancement of social network research over time, a research consensus has been reached that the use of social networks in job searching can provide positive returns. This study focused on the heterogeneity in the returns to social networks. Using Job Search and Social Networks (JSNET) survey data on urban residents of China, we examined the differences in the propensity to use social networks in job searching and the returns to social networks in terms of job seekers’ earnings and job satisfaction using propensity score stratification and the heterogeneous treatment effects model (HTE model). The use of social networks in job searching was found to be nonrandomly distributed, and the propensity to use such networks varied according to job seeker characteristics. For job seekers with different propensities, the returns to social networks were also different. Moreover, there was negative selection in the instrumental effect of social network use in the job search process but positive selection in the expressive effect: the higher the propensity to use one’s networks, the lower the income return to social networks and the higher the job satisfaction; the lower the propensity to use one’s networks, the higher the income return and the lower the job satisfaction.
Teaching BDD in Active Learning Environments: A Multi-study Analysis

: Software development practices to enhance software quality and help teams better develop collaboratively have received attention by the academic community. Among these techniques is Behavior-Driven Development (BDD), a development approach which proposes software to be developed focusing primarily on its expected behavior. Teaching-wise, introducing BDD on software engineering classes and/or training courses for software developers has become important. In this context, this study presents a body of knowledge on the impacts of teaching BDD in active learning environments (ALE). To achieve this, we have triangulated data from four data sources: (i) a systematic literature review; (ii) an expert panel with active-learning experts, (iii) a survey with participants in a software development course which teaches through active learning, and (iv) a case study on the effects of teaching and using BDD in an ALE. This study results are (i) the-state-of-the-art literature on this topic, (ii) an assessment of beneﬁts and challenges of BDD in ALEs, and (iii) a set of best practices when teaching BDD in ALEs. We concluded that BDD has more positive than negative outcomes and we present a body of knowledge regarding BDD in ALEs.
Gene Polymorphisms of Hormonal Regulators of Metabolism in Patients with Schizophrenia with Metabolic Syndrome

Background: Metabolic syndrome (MetS) is a common complication of long-term treatment of persons with schizophrenia taking (atypical) antipsychotics. In this study, we investigated the existence of an association with polymorphisms of genes for four hormones that regulate energy metabolism. Methods: We recruited 517 clinically admitted white patients (269M/248F) with a verified diagnosis of schizophrenia (ICD-10) and with a stable physical condition. Participants were classified for having or not having MetS and genotyped for 20 single-nucleotide polymorphisms (SNPs) in the genes encoding insulin-induced gene 2 (INSIG2), ghrelin (GHRL), leptin (LEP), and leptin receptor (LEPR). Results: The 139 patients (26.9%) with MetS were significantly more likely to be women, older, and ill longer, and had a larger body mass index (BMI). Four polymorphisms (rs10490624, rs17587100, rs9308762, and rs10490816) did not meet the Hardy–Weinberg equilibrium (HWE) criterion and were excluded. Only genotypes and alleles of the rs3828942 of LEP gene (chi2 = 7.665, p = 0.022; chi2 = 5.136, p = 0.023) and the genotypes of the rs17047718 of INSIG2 gene (chi2 = 7.7, p = 0.021) had a significant association with MetS. Conclusions: The results of our study suggest that the LEP and INSIG2 genes play a certain causal role in the development of MetS in patients with schizophrenia.
Meritocracy or reputation? The role of rankings in the sorting of international students across universities

University rankings have gained prominence in tandem with the global race towards excellence and as part of the growing expectation of rational, scienti ﬁ c evaluation of performance across a range of institutional sectors and human activity. While their omnipresence is acknowledged, empirically we know less about whether and how rankings matter in higher education outcomes. Do university rankings, predicated on universalistic standards and shared metrics of quality, function meritocratically to level the impact of long-established reputations? We address this question by analysing the extent to which changes in the position of UK universities in ranking tables, beyond existing reputations, impact on their strategic goal of international student recruitment. We draw upon an ad hoc dataset merging aggregate (university) level indicators of ranking performance and reputation with indicators of other institutional characteristics and international student numbers. Our ﬁ ndings show that recruitment of international students is primarily determined by university reputation, socially mediated and sedimented over the long term, rather than universities ’ yearly updated ranking positions. We conclude that while there is insu ﬃ cient evidence that improving rankings changes universities ’ international recruitment outcomes, they are nevertheless consequential for universities and students as strategic actors investing in rankings as purpose and identity.
Oxide glasses under pressure: Recent insights from experiments and simulations

Deciphering the structure–property relations of densified oxide glasses is a problem of longstanding interest. For example, it is important for understanding the fracture mechanism under sharp contact loading as well as fabricating glasses with tunable physical characteristics. Recent advances in both experimental and simulation techniques have prompted research breakthroughs in understanding the response of glasses to high pressure. In this Perspective, we first briefly discuss the facilities for the high-pressure treatment of glasses, including in situ and ex situ investigations. The recent work on pressure-induced structural changes of archetypical oxide glass families (silicates, germanates, borates, aluminates, phosphates) is discussed and compared to the changes in macroscopic properties induced by densification, as densification treatment can be used to produce oxide glasses with improved hardness, stiffness, and toughness. We also discuss the new insights from atomistic simulations combined with topological analysis tools to unravel the densification mechanism of oxide glasses on the medium-range order length scale. Drawing on these recent studies, we clarify how densification treatment has proved to be an important tool to both understand the disordered nature of glasses and tune their physical properties, although many open questions and challenges remain that require further investigations.
A non-uniform travelling-wave current source model for designing OAM antenna: theory, analysis and application

Orbital angular momentum (OAM) has become a research hotspot in radar, communication, and other fields because of its spatial spiral phase distribution in azimuthal domain. However, it encounters some problems in practical application scenarios owing to its inherent defects. Recently, several particular OAM waves and novel antenna structures have been proposed to make up for its defects or optimize its characteristics. However, there lack a universal and systematic theoretical analysis for these schemes. In this paper, the non-uniform travelling-wave current source (NTCS) model for OAM generation is proposed. This model is universal and suitable to be applied to many proposed antennas. The far field pattern and OAM spectrum distribution are theoretically derived based on the uniform travelling-wave source model. Bridged by the OAM spectrum analysis, an application-oriented antenna design process is presented. A PSOAM MG antenna optimal for the MIMO system is designed as an example. This work not only unifies the generation model of different OAM waves, but also provides a new view for the OAM based antenna design.
Factors influencing the desire for orthodontic treatment among patients and parents in Saudi Arabia: A cross-sectional study

OBJECTIVES: The decision to pursue orthodontic treatment is influenced by a variety of cosmetic, functional, and social reasons. This study compared the factors that influence adults’ decisions before orthodontic treatment versus parents’ decisions prior to their children's orthodontic treatment in Jeddah city, Saudi Arabia. MATERIALS AND METHODS: A cross-sectional survey was distributed to the patients of orthodontic clinics of King Abdulaziz University in addition to a private orthodontic clinic in Jeddah city, Saudi Arabia. The survey consisted of two versions of a questionnaire: one for adults and one for children's parents. The survey inquired about the participants’ demographics, factors that led to the necessity of treatment, and considerations before opting for orthodontic treatment. The factors influencing the decision-making process of adults were compared to that of parents using the Chi-square test. RESULTS: A total of 417 subjects participated, 331 adults and 86 parents. The majority of the respondents in both groups were females. When compared to children, adults were more aware of the necessity for orthodontic treatment (78.5% of adults vs. 41.9% of children). The primary motivation for adults and parents to begin orthodontic treatment was to improve their esthetic appearance (58.6% and 87.2%), whereas functional concerns were less frequently reported (12.1% and 15.1%). Adults relied on less trustworthy sources of information about orthodontic treatment options, whereas parents relied on more dependable sources. CONCLUSIONS: The main reason for opting for orthodontic treatment in Jeddah city, Saudi Arabia was esthetic for both adults and children.
Cheating and Detection Method in Massively Multiplayer Online Role-Playing Game: Systematic Literature Review

Recently, despite massively multiplayer online role-playing game (MMORPG) based on the PC implementation environment in mobile games, related fraudulent and illegal activities are still prevalent in response to the extension and diversity of the online gaming market. For game users who enjoy the game as leisure or cultural content, these issues inhibit the game’s immersion or cause seceding from the game, thus negatively affecting the overall online gaming industry. This systematic review provides an overview of substantial studies on the occurrence of cheating behavior, countermeasures, and detection methods. We aimed to scrutinize the scope of generable cheating behavior due to the structural characteristics of a stateful game server. Furthermore, we focused on providing the basis for the key mechanisms of online games based on the conceptual attributes of the MMORPG. A comprehensive literature research was conducted, and the classification of countermeasures and detection methods were systematized. The results of the systematic literature review contribute to the current understanding of how to correctly manage detection techniques and methods for cheating behavior in the MMORPG.
Augmented Virtuality Systems as a Tool for Improving Numeracy Decision-Making Among Children

Young children depend on the non-symbolic representation of numbers for their numeracy understanding and decision-making. The objective of the current research was to examine whether the use of an augmented virtuality (AV) system to represent numbers as physical objects, compared to representing them only visually on a computer screen, will improve children’s numeracy decision-making. The question was evaluated by comparing children’s decisions to buy more profitable versus non-profitable products, as well as their total profit, when the coins and the coin machine are real (AV system group) compared to their decisions when using a system in which the coins and the coin machine are virtual (virtual system group). Two between-participants groups of children aged 6–8 participated in this study, with 30 children in each group. The results demonstrated that in the AV system group, the children invested more proportionately in the profitable versus non-profitable products, while in the virtual system group, the opposite occurred. As a result of their better decision-making, the total profits of the AV system group were higher than those of the virtual system group. The current findings are an interesting addition to the existing literature on the contribution of virtual reality and augmented reality systems in improving mathematical learning.
Research on the influence of music on human society based on the cosine similarity algorithm

This article first establish a directional network. And calculate the number of child nodes corresponding to each node, add other parameters, and calculate the music influence model of each artist through the entropy weight method (EWM). Through this evaluation model, we can quantitatively describe the influence of an artist. Then this paper uses the cosine similarity algorithm to model the music similarity using the theme model. Use the cosine similarity algorithm to calculate the cosine similarity in the space of any two songs, and then judge the similarity. Based on the data set, this paper calculate the influence of each characteristic of all music on the popularity of music, and get the influence of music characteristic on "infectivity". Through the radar chart of the musical characteristics of the artist Son House and his three typical influenced people, it is analyzed whether the artist can influence the creative tendency of his influenced people. With the help of the "elbow method" in the clustering determination k, the inflection point corresponding to the elbow is selected, and the inflection point represents the changer. Select the Electronic genre and divide the genre into three stages with the help of the total amount of music. Analyze the mean value of certain music indicators in these three stages, and use the change of the mean value of these music indicators to explore the evolution of the genre over time.
Drafting Out the Association Shared by CSR and Innovative Performance of the Firms:- The Intervening Role of Employee Collaboration

Introduction: Corporate social responsibility (CSR) has gained momentum for its ability to predict firm performance and achieve long-term growth. However, to cope up with rapidly developing global economic situation, significant changes in internal CSR implementation and management along with employee collaboration is required. Background: For being more productive and goal-oriented internal CSR practices, organizations should include employees. It will improve people’s impulse and invoke a responsible response for knowledge sharing for the innovative performance of the firm.Purpose: The current study aims at outlining the intervening role of employee collaboration for enhancing the interaction between CSR and innovative performance of the firms. Findings: Affective commitment and knowledge sharing are two variables that are directly proportional to each other. Training and development are directly contributing to the innovative performance of firms and for that affective commitment and knowledge sharing must be done.
Statistical Analysis and Modeling of Claim Duration for Workers' Compensation Insurance

Workers’ compensation is a form of insurance that protects employees and business owners from the cost of injuries occurring in the workplace. The duration of time a workers’ compensation claim remains open largely depends on the type and severity of the injury. This work focuses on statistical analysis and modeling of claim duration for a workers’ compensation insurer. A data set for claim duration that included over two million claims spanning from 1915 to 1994 was analyzed. Exploratory data analysis revealed that the distribution of the data was multi-modal with a gap at approximately 55 years and a positive skew. Log linear analysis and modeling was used to understand the association between categorical variables. The EM algorithm was used to fit gamma and normal mixture models to the claim duration data. Log likelihood and AIC values were used to show that a normal mixture provided the best fit for the data. The likelihood ratio test was used to select the number of components in the mixture model. This test indicated the four component normal mixture model was the best model. The Komogorov-Smirnov goodness-of-fit test indicated that the selected model was identical to the population distribution that generated the data. Finally, standard errors of the parameter estimates were reported indicating that little uncertainty existed in the estimates.
Mediterranean Style Dietary Pattern with High Intensity Interval Training in Men with Prostate Cancer Treated with Androgen Deprivation Therapy: A Pilot Randomised Control Trial

Background: Androgen deprivation therapy (ADT) in prostate cancer has been shown to deteriorate body composition (reduced lean mass and increased body and fat mass) and increase the risk of cardiovascular morbidity. The Mediterranean style dietary pattern (MED-diet) and high intensity interval training (HIIT) may synergistically alleviate these side effects and improve quality of life in men treated with ADT. Methods: Twenty-three men (65.9 ± 7.8 years; body mass index: 29.6 ± 2.7 kg/m2; ADT duration: 33.8 ± 35.6 months) receiving ADT for ≥3 months were randomly assigned (1:1) to 20 weeks of usual care or the MED-diet (10 nutrition consults) with HIIT (4 × 4 min 85–95% heart rate peak, 3× week, starting at 12 weeks). Results: The MED-diet with HIIT significantly improved cardiorespiratory fitness (+4.9 mL·kg−1·min, p < 0.001), and body mass (−3.3 kg, p < 0.001) compared to the usual care group at 20 weeks. Clinically meaningful (≥3 points) improvements were seen in quality of life and cancer-related fatigue after 20 weeks. Conclusions: The MED-diet with HIIT increased cardiorespiratory fitness and reduced body weight in men with prostate cancer treated with ADT. Larger trials determining whether the MED-diet with HIIT translates to cardiovascular benefits are warranted.
A study of the virtual reality cybersickness impacts and improvement strategy towards the overall undergraduate students' virtual learning experience

Purpose Virtual reality (VR) technologies have expanded their application domains towards education with pedagogical benefits including fully immersive learning environment and in-depth user engagement through scenario-based virtual simulations. Motion sickness (MS), however, has become one of the long-standing key challenges of the VR utilisation, even in gaming industries. Thus, this paper aims to present a preliminary study on understanding the VR MS, referred as cybersickness, in the teaching and learning (T&L) context at the University of Nottingham Ningbo China. Design/methodology/approach A VR-based virtual classroom content was developed and tested for 60 undergraduate students having equal access to the same VR equipment. A two-step data collection, comprising qualitative and quantitative measures, was conducted for the participants. The aspects of how gender influences the cybersickness severity and how academic background affects the learning experience were investigated and analysed using analysis of variance F-test statistical approach. Findings The results demonstrated approximately 47% of the participants had experienced cybersickness, where 64% of them were females. With confidence level of 95% (a = 5%), the obtained p-value and F-statistical value for the respective gender and study discipline categories against the cybersickness symptoms confirmed the significance level between the two compared variables. Moreover, it is worth highlighting that the virtual movement speed, perspective angle and visual properties of the virtual environment were selected as the top three factors that caused the cybersickness. Originality/value The study is hoped to provide valuable pointers to current and future VR developers in minimising the cybersickness symptoms that would enable an effective T&L environment in higher education.
A Method of Maintenance Performance Evaluation of Educational Facilities

It is important to estimate the capability for the facilities and the condition of schools continually and correctly because the structure's life is remained more longer through the effective building control and preservation. In accordance with above of that, it is required to understand the knowledge about all matters at the stage of management for educational facilities and establish the procedure of the facility management consistently. This research suggests the method, which remains consistent and objective and deals with the total functional degree by following ㄴthe way to systemize the management plan of the facility estimation. The functional estimation of the existing facilities will be useful to make an plan for repair, maintain and checking of them as well as be the standard for remodeling and the educational facility duration, including long period project for building mending.