Miracle-dz/UniFAR-FTUs huggingface dataset:
Asynchronous Particle Swarm Optimization-Genetic Algorithm (APSO-GA) Based Selective Harmonic Elimination in a Cascaded H-Bridge Multilevel Inverter

In this article, a hybrid asynchronous particle swarm optimization-genetic algorithm (APSO-GA) is proposed for the removal of unwanted lower order harmonics in the cascaded H-bridge multilevel inverter (MLI). The APSO-GA is applicable to all levels of MLI. In the proposed method, ring topology based APSO is hybrid with GA. APSO is applied for exploration and GA is used for the exploitation of the best solutions. In this article, optimized switching angles are calculated using APSO-GA for seven-level and nine-level inverter, and results are compared with GA, PSO, APSO, bee algorithm (BA), differential evolution (DE), synchronous PSO, and teaching–learning-based optimization (TLBO). Simulation results show that APSO-GA can easily find feasible solutions particularly when the number of switching angles is high; however, the rest of all stuck at local minima due to less exploration capability. Also, the APSO-GA is less computational complex than GA, BA, TLBO, and DE algorithms. Experimentally, the performance of APSO-GA is validated on a single-phase seven-level inverter.
Policy responsibility in the multilevel EU structure – The (non-)effect of media reporting on citizens’ responsibility attribution across four policy areas

ABSTRACT In the EU multilevel structure, citizens differ in perceptions of who is responsible for policies and their outcomes. Policy responsibility consists of two concepts, functional and causal responsibility. While the latter has been studied in the context of ‘blaming Europe’ for negative outcomes, the necessary condition of functional responsibility has received only scant attention. The media plays a crucial role in providing citizens with information for attributing causal responsibility, but may be even more important for attributing functional responsibility. We test this for the case of the Netherlands for four policy areas: Immigration, social welfare, economy, and terrorism. Linking survey data to automated media content data, we predict the effect of exposure to policy-related information on the European level on policy-level attribution. Although the results show both differences in citizens’ functional responsibility attributions and EU-related media coverage across policy areas, we find no effect from media consumption on responsibility attributions.
Spin-state transition of iron in ( Ba 0.5 Sr 0.5 ) ( Fe 0.8 Zn 0.2 ) O 3 - d perovskite

The redox behavior of iron during heating of a high-performance perovskite for ceramic oxygen separation membranes was studied by combined electron energy-loss (EELS, esp. ELNES) and Mössbauer spectroscopical in situ methods. At room temperature, the iron in ðBa0:5Sr0:5Þ ðFe0:8Zn0:2ÞO3 d (BSFZ) is in a mixed valence state of 75% Fe4þ in the high-spin state and 25% Fe3þ predominantly in the low-spin state. When heated to 900 3C, a slight reduction of iron is observed that increases the quantity of Fe3þ species. However, the dominant occurrence is a gradual transition in the spin-state of trivalent iron from a mixed low-spin/high-spin to a pure high-spin configuration. In addition, a remarkable amount of hybridization is found in the Fe–O bonds that are highly polar rather than purely ionic. The coupled valence/spin-state transition correlates with anomalies in thermogravimetry and thermal expansion behavior observed by X-ray diffraction and dilatometry, respectively. Since the effective cationic radii depend not only on the valence but also on the spin-state, both have to be considered when estimating under which conditions a cubic perovskite will tolerate specific cations. It is concluded that an excellent phase stability of perovskite-based membrane materials demands a tailoring, which enables pure high-spin states under operational conditions, even if mixed valence states are present. The low spin-state transition temperature of BSFZ provides that all iron species are in a pure high-spin configuration already above ca. 500 3C making this ceramic highly attractive for intermediate temperature applications (5002800 3C). & 2009 Elsevier Inc. All rights reserved.
Conceptual Model for Explaining Academic Achievements and Social Functioning of Students with and without Learning Disorders

The purpose of the study was to develop a comprehensive model that examines whether motor abilities and socioemotional adjustment contribute to the academic achievement and social functioning of students. Participants were 733 children, aged 6.04–13.72 years. Among them, 642 were typically achieving children, and 91 were children with learning disorders (LD). Measurements were: Children’s Sense of Coherence Scale, Children’s feelings of loneliness and social dissatisfaction, The Social Skills Rating System, and The Test of Motor Impairment–Henderson Revision. Results showed that LD explains all dependent variables in the model. According to this model, there is a valid reason for the controversy that still exists between policy makers who focus on academic achievement and early childhood educators who emphasize social skills and behavior.
Gas Viscosity Measurement and Evaluation for High Pressure and High Temperature Gas Reservoirs

Gas viscosity is an important fluid property in oil and gas engineering due to its impact on hydrocarbon production and transportation, reservoir recovery, fluid flow, deliverability, and well storage. Existing gas viscosity correlations were derived using measured data at low to moderate pressure and temperatures. No measured gas viscosities at high pressure high temperature (HPHT) using reservoir sample are currently available, and using the extrapolation approach is not reliable. Therefore, this research paper presents laboratory measurement of gas viscosity at HPHT and comparative study of some existing gas viscosity correlations using the measured data. The capillary electromagnetic viscometer was used to measure gas viscosity for pressures between 6,000 psia and 14,000 psia; and temperatures of 270 oF and 370 oF. The comparative study shows that the gas viscosity models commonly used in the industry are not very reliable at HPHT conditions. Ohirhian and Abu (2008) performed better than other evaluated correlations with the mean relative error of -5.22 and absolute error of 8.752 for the temperature of 270oF while Dempsey (1965) came out the best for the temperature of 370oF with mean relative error of -16.88 and 16.88 for absolute mean error. Cross plots showed the poor performance of the evaluated correlations using the measured data at HPHT conditions. From the analysis, the oil and gas industry needs new gas viscosity correlations that can predict gas viscosity at HPHT region
Choosing between Formal and Informal Technology Transfer Channels: Determining Factors among Spanish Academicians

Technology transfer has become one of the most important activities that must be developed by universities. However, there are multiple ways to do it. We can differentiate, essentially, between formal transfer (which is carried out through the channels established and controlled by the university staff, legalized through contracts) and informal (channels not legalized by signing a contract). Both types of transfers have diverse implications, which is why their study is necessary. This research aimed to study what are the determinants that lead academics to choose one or another channel of technology transfer. To this end, an empirical study was carried out by sending a questionnaire ad hoc to which a total of 1215 researchers responded. The results show that the choice of formal transfer channels depends on the academic experience in informal channels, as well as on the capacity and that of organizational justice. These results have important implications for policy makers and university managers.
Steps of Reasoning in Children and Adolescents

We develop a novel graphical paradigm of a strict-dominance-solvable game to study the developmental trajectory of steps of reasoning between 8 years old and adulthood. Most participants play the equilibrium action either always or only when they have a dominant strategy. Although age is a determinant of equilibrium choice, some very young participants display an innate ability to play at equilibrium. Finally, the proportion of equilibrium play increases significantly until fifth grade and stabilizes afterward, suggesting that the contribution of age to equilibrium play vanishes early in life.
Expert authority and support for COVID-19 measures in Germany and the UK: a survey experiment

Abstract During COVID-19, various public institutions tried to shape citizens’ behaviour to slow the spread of the pandemic. How did their authority affect citizens’ support of public measures taken to combat the spread of COVID-19? The article makes two contributions. First, it presents a novel conceptualisation of authority as a source heuristic. Second, it analyses the authority of four types of public institutions (health ministries, universities, public health agencies, the WHO) in two countries (Germany and the UK), drawing on novel data from a survey experiment conducted in May 2020. On average, institutional endorsements seem to have mattered little. However, there is an observable polarisation effect where citizens who ascribe much expertise to public institutions support COVID-19 measures more than the control group. Furthermore, those who ascribe little expertise support them less than the control group. Finally, neither perception of biases nor exposure to institutions in public debates seems consistently to affect their authority.
Employee radical creativity: the roles of supervisor autonomy support and employee intrinsic work goal orientation

ABSTRACT We aimed to investigate whether supervisor autonomy support influences employees’ radical creativity through their intrinsic work goal orientation and how employees’ willingness to take risks moderates the indirect relationship. We tested our prediction using data from a field study (Study 1: 262 supervisor-subordinate dyads) and an experimental study (Study 2: 101 Chinese students). The results of Study 1 showed that supervisor autonomy support was positively related to employees’ intrinsic goals and radical creativity and that intrinsic goals played a mediating role. The results of Study 2 revealed that supervisor autonomy support had a positive impact on radical creativity via intrinsic goals and that employees’ willingness to take risks moderated the indirect relationship. The results of the two studies suggested that supervisor autonomy support promotes radical creativity through employee intrinsic work goal orientation when supervisors’ willingness to take risks is high rather than low.
Women’s Transition to Entrepreneurs from Professional and Managerial Careers in Organizations

Careers have different dimensions, they can be developed in an organization and in individual way. Organizations no longer have a role in creating careers, but individuals develop careers using the organization as a tool or medium. Changes in the external and internal environment in the organization are the basic conditions why individual career dares to change. The research aimed to explore senior female managers' phenomenon that left professional and managerial careers in organizations to be entrepreneurs. Structured and in-depth interviews were conducted with 25 female entrepreneurs who had left senior manager positions at the companies. Qualitative research approaches were carried out to explore what motivated female entrepreneurs to make a career transition and how the career transition process was done. Then, the Critical Incident Technique was used to analyze the data to get responses regarding female entrepreneurs' perceptions of career transitions. From the results, there are four main categories: personal, organizational life, value and integrity, and capital. Then, there are also nine subcategories: independence and individualism, strong encouragement and family support, professional and personal life balance, organizational life, values, integrity, partner ties, mentor ties, and human capital. The personal category causes more women to make a career transition, followed by capital, value and integrity, and organizational life categories.
Age and education moderate the relationship between confidence in health and political authorities and intention to adopt COVID-19 health-protective behaviours

PurposeThis study aimed to examine (1) whether confidence in political and health authorities predicted intention to adopt recommended health-protective behaviours and (2) whether age, gender and education level moderated the relationship between confidence in political and health authorities and health protective-behaviours (download the COVIDSafe app, wear a face mask and stay at home). Design/methodology/approachThis study assessed 1,206 Australians using an online survey. Participants answered questions regarding their confidence in political and health authorities and intention to adopt health-protective measures.FindingsConfidence in health and political authorities predicted intention to stay home and intention to download the COVIDSafe app, but not to wear a face mask in public spaces. Age moderated the relationship between confidence in authorities and intention to stay home (i.e. among respondents with less than 54 years old, confidence in authorities was associated with higher intention to stay home). Further, age and education level moderated the relationship between confidence in authorities and intention to download the COVIDSafe app (i.e. among older respondents and those with a university degree or higher, confidence in authorities was more strongly associated with higher intention to download the COVIDSafe app). The interaction between confidence and education predicted adoption of mask-wearing (i.e. among participants with a university degree or higher, more confidence in authorities was associated with higher intention to wear a mask in public spaces). Originality/valueOur findings can inform the development of targeted communications to increase health-protective behaviours at early stages of future pandemics.
PET/CT NEMA Body Phantom Image Reconstruction Study Using 2 mm Voxel Size for Improved Image Quality

Background PET/CT imaging is widely used in oncology and provides both metabolic and anatomic information. Because of the relatively poor spatial resolution of PET/CT imaging technique the detection of small lesions is limited. The low spatial resolution introduces the partial-volume effect (PVE) which negatively affects images both visually and quantitatively. The aim of our research was to investigate the effect of 4 mm and 2 mm voxel size on image quality and on detection of small spheres. MethodsWe used the NEMA body phantom with six fillable spheres. The spheres and background were filled with a solution of 18F-FDG, in ratio spheres vs background 2:1, 3:1, 4:1 and 8:1 In all images reconstructed with 2 mm and 4 mm voxel size the contrast recovery coefficient (CRC), contrast to noise ratio (CNR) in standardized uptake value (SUV) were evaluated.ResultsFor phantom spheres ≤ 13 mm, we found significant higher CRC, SUV and CNR using small-voxel reconstructions. CRC and SUV did not differ for large spheres (≥ 17 mm) using 2 mm and 4 mm voxel size. On the other hand, CNR for large spheres (≥ 17 mm) was significantly decreased in 2 mm voxel size images compared to the 4 mm.ConclusionAccording to our results, the reconstruction with 2 mm voxel size can improve precise lesion localization, image contrast, and image quality.
The Relationship between OCBI and Family Motivation through Self-Efficacy and Welfare in Makassar City Banking Offices

Employees often show a distinctive personality through their preference for family needs over jobs. Therefore, this study explores the relationship between family motivation and OCBI mediated by self-efficacy and well-being in the workplace. This research model varies from previous studies and provides the novelty of the study. As a research unit, this study uses a sample of bank employees in Makassar City with at least five years' experience as respondents. They are considered capable of delivering reliable data about the research issue (purposive sampling) using the WarpPLS 7.0 analysis tool. Interestingly, this study's new concept has revealed no evidence of an interaction between family motivation and OCBI. In this research model, all the relationships between variables were positive and significant. A recent finding of the relationship between self-efficacy and well-being in the workplace has been found and may lead to an understanding of the association between family motivation and OCBI. Empirical evidence of self-efficacy and well-being is a recent discovery that theoretically contributes to the relationship between family motivation and OCBI. In theory, this study also contributes to the existing pro-social motivation theory, explaining the impact of family motivation on OCBI in banking. DOI: https://doi.org/10.26905/jkdp.v25i1. 5458
Large-eddy simulation of tri-fuel ignition: diesel spray-assisted ignition of lean hydrogen–methane–air mixtures

We present 3D numerical results on tri-fuel (TF) combustion using large-eddy simulation and finite rate chemistry. The TF concept was recently introduced by Karimkashi et al. (Int. J. Hydrogen Energy, 2020) in 0D. Here, the focus is on spray-assisted ignition of methane–hydrogen blends. The spray acts as a high-reactivity fuel (HRF) while the ambient premixed methane-hydrogen blend acts as a low-reactivity fuel (LRF) mixture. Better understanding on such a TF process could enable and motivate more extensive hydrogen usage in e.g. compression ignition marine engines where spray-assisted dual-fuel (DF) combustion is already utilised. The studied spray set-up is based on the modified ECN Spray A case, see Kahila et al. (Combustion and Flame, 2019) for DF combustion. The ambient pressure and temperature are 900 K and 60 bar. The hydrogen content of the LRF blend is varied systematically by changing the molar fraction , . The main added value of the study is that we extend the TF concept to 3D. The particular findings of the study are as follows: 1) Consistent with Karimkashi et al. 2020, hydrogen delays ignition also in 3D and the effect becomes significant for . 2) The ratio between the first- and second-stage ignition delay times and . Furthermore, the ratio between 3D and 0D ignition delay times is given as for all TF cases. 3) Finally, consistent with Karimkashi et al. 2020, also in 3D the high-temperature combustion heat release mode is shown to appear stronger in TF than the low-temperature combustion mode compared to DF methane–diesel combustion.
Chasing returns with high-beta stocks: evidence from tax-privileged mutual funds in Thailand

One proposed explanation for the low-beta anomaly – a puzzling finding that stocks with low systematic risk tend to earn higher returns than the CAPM predicts and vice versa – is that mutual funds drive up demand for high-beta stocks, leading to systematic mispricing. We find evidence that Thai equity mutual funds tend to alter their risk exposure in response to fund flows, but only for incentivized funds where investors receive immediate tax benefits. We argue that the benefits change the way investors make their decisions, raising an issue of how public policies may have unintended consequences in capital markets.
Distance learning hybrid format for university students in post-pandemic perspective: Collaborative technologies aspect

The relevance of the research is determined by the key ideas of the hybrid format of students distance learning and collaborative technologies of its implementation in the post- pandemic perspective of the university educational process. The authors, taking into account the trends of transformations of the educational process of the university in the post-pandemic perspective, reveal the content of the key concepts of the hybrid format of distance learning for students. The priorities of collaborative technologies aimed at supporting the hybrid format of distance learning of university students are determined. Based on the results of the study, the authors of the article substantiate the productivity and prove the effectiveness of the implementation of platform models of the hybrid distance-learning format. The materials of the article are recommended to teachers and students of the university, methodologists, curators, tutors. Keywords: student's personality, post-pandemic perspective of university development, distance learning, hybrid format of distance learning, mixed learning, collaborative technologies, platform model, pedagogical design
Influence of Parents’ Educational and Socio-Economic Status on Dental Health of Children Among South Indian Population

In the modern era where both parents are employed, there seems to be limited focus on the dietary habits and dental health of their children. Hence, the aim of this study was to assess the parental influence and family characteristics on the prevalence of dental caries among children who reported to the department of Orthodontics aged 10-17 years from Chennai. A cross-sectional epidemiological survey was carried out on 250 children aged 10 years to 17 years. The data was retrieved from the subjects records provided by the institution which consisted of information on their dental caries status. Structured questionnaires were given to parents to collect information regarding their socio-environmental and family characteristics. Student's t-test on metric parameters and Chi-square/Fisher for study parameters between two or more groups were used. It was observed that in families where the average monthly income >10,000/-, decayed, missing, and filled teeth was proportionately lower. The socioeconomic status, which is primarily influenced by parental factors and family structure, have a definite role in dental needs of children from underprivileged backgrounds. Dental health programs should aim to reduce the gross inequalities in the oral health status of these children and their families.
Stage-dependent Plasticity in Biomass Allocation and Allometry of Abutilon Theophrasti in Response to Population Density 

How plants respond to density via modular plasticity is obscure, probably because relevant studies using covariance and allometry analyses rarely focus on multiple stages of plant growth, and also the two approaches are seldom used simultaneously in a same study. To address this issue, a field experiment was conducted by subjecting plants of Abutilon theophrasti to low, medium and high densities and measuring the mass of various plant modules, before covariance and allometry analyses at three stages of plant growth. Results showed inconsistent responses in allocation traits and allometric relationships at each growth stage. At 30 d, high density increased root:stem, root:leaf and stem:leaf ratios, but did not affect any allometric relationships. At 50 d, density altered most allocation traits, but not for allometric exponents. At 70 d, density altered allometric relationships, with no effects on allocation traits. The stage-dependent allometric relationships and inconsistent results of allometric and covariance analyses suggested one-stage allometric plasticity might be apparent plasticity. In response to the increase of density, plants first altered the strategy of biomass partitioning, then growth rate or developmental stage, indicating density effects intensified over time. For plasticity in a modular trait, size effects can be regarded as a component of (indirect) environmental effects, with the left variation after removal of size effects being the other component of plant (direct) active response. The insights into apparent plasticity of allometry and two components of plasticity should be of essential importance to investigating phenotypic plasticity and its implications in plants.