Miracle-dz/UniFAR-FTUs huggingface dataset:
Superdirective Linear Dipole Array Optimization

The theory of superdirective antenna arrays was discussed. The procedure for finding the excitation currents of fixed-geometry arrays, which maximizes the directivity, termed as superdirectivity, for a given direction and polarization, was described. The procedure was based on the solution of an eigenvalue problem including the directivity and matrices of normalized self- and mutual radiation intensities and normalized self- and mutual radiated powers of array elements. For examples of a linear dipole array located above a perfect electric conductor ground plane, this procedure was also combined with the optimization of the parameters of geometry of the array as a spacing of dipoles, or their height above the ground, for various number of dipoles in the array.
How temporal leadership boosts employee innovative job performance

PurposeThe purpose of this paper is to examine how temporal leadership relates to employee innovative job performance through pro-social rule breaking for efficiency (PSRB_E) and vigor. As such, it draws from both motivational and affective perspectives to investigate the way in which leaders manage employees' time to boost employee innovation at work.Design/methodology/approachThis study adopts a two-source survey with coworker dyads from multiple organizations in China. Two hundred and three focal employees rated temporal leadership, time pressure and vigor. Each focal employee was rated by a coworker on PSRB_E and innovative job performance. Structural equation modeling (SEM) and bootstrapping techniques are used to examine the hypothesized relationships with the R package for latent variable analysis (i.e. lavaan). FindingsThe results suggest that temporal leadership positively relates to employees' innovative job performance through the mediations of their PRSB_E and vigor, respectively.Originality/valueThis study is one of the first that sought to understand the effect of temporal leadership on employee innovative job performance. It also casts light upon the motivational and affective mechanisms underlying such a linkage.
Investigating locus-specific effects on transgene silencing and DNA methylation in Arabidopsis thaliana

The repression of transgene expression by RNA silencing can affect the development of genetically modified plants for both research and agronomical purposes. It remains unclear why some transgenes when introduced into plants undergo silencing whereas other identical transgenes do not. Additionally, some transgenes when silenced can support DNA methylation whereas others cannot. One possibility for this variation is that there are locus-specific effects influencing a transgene’s potential to undergo RNA silencing and/or DNA methylation. These locus-specific effects may be a result of either the site of transgene integration or be due to the properties of the transgene locus itself. This research has aimed to address these questions by generating and characterizing multiple independent single locus GFP transgenic Arabidopsis lines that have been triggered to undergo silencing by crossing with an amplicon trigger line (AMP243). The ability of these lines to undergo RDR6-dependent Post Transcriptional Gene Silencing (PTGS) and/or RNA directed DNA Methylation (RdDM) has been investigated in an attempt to correlate characteristics of the transgene in each independent line with RNA silencing outcomes. Additionally, epitope-tagged versions of RDR2 and RDR6 have been generated in order to investigate their potential recruitment to target loci. The data presented in this body of work supports there being no locus-specific effect on RNA silencing. For example, amplicon-triggered RDR6-dependent PTGS occurred in all the independent lines suggesting that RDR6 activity is not influenced by either genome location or locus structure. Despite the production of high levels of small interfering RNAs, not all lines supported detectable levels of RdDM in the F1 of the crosses with the trigger line. However, the results presented here clearly demonstrate that the levels of RdDM increase over a generation. Additionally, Chromatin Immunoprecipitation experiments have revealed that amplicon-triggered RdDM was not associated with changes in the histone marks H3Ac or H3K9me. This suggests that this non-canonical pathway of DNA methylation may not be linked with changes in histone modification, although testing will be required in order to strengthen this conclusion.
Who engages in explicit knowledge creation after graduation? Evidence from the alumni impact survey of a large Canadian public university

ABSTRACT While researchers and policymakers have sought to understand factors that affect research productivity of universities and entrepreneurship activities of graduates, we know little about the graduates in the workforce who engage in knowledge creation. This study employs data from an alumni impact survey (N = 12,504) and alumni database of a large Canadian public university to determine the characteristics of alumni who have engaged in knowledge creation. The results suggest that although having a postgraduate degree is a significant predictor of engaging in knowledge creation, 36.7% of those without such a degree have also generated new knowledge. Other significant predictors include gender, age, extracurricular leadership experience, degree, discipline, being the first person of one’s immediate family to attend a university, and a degree from abroad. The effects of the characteristics are different for alumni with and without a postgraduate degree. Implications for university-wide policies on research training and student experience are discussed.
Solar-driven all-solid-state lithium–air batteries operating at extreme low temperatures

We propose an innovative solar photothemal battery technology to develop all-solid-state lithium–air batteries operating at ultra-low temperatures where a plasmonic air electrode can efficently harvest solar energy and convert it into heat, enabling efficient charge storage and transmission in electrolyte/electrode materials. Such batteries demonstrate a high discharge capacity (∼3600 mA h g−1) at −73 °C and record-cycle life both at −73 °C and room temperature.
The Effect of Customer Relationship Management on Brand Loyalty: A Case Study on the Body Shop Indonesia’s Customers

Padang, Indonesia,  jumiatulmulya89@gmail.com Abstract This study aims to analyze the benefits of Customer Relationship Management (CRM) on Brand Loyalty for cosmetic consumers of The Body Shop Indonesia. The main idea of CRM is to share benefits to customers, allow it to complicate competition costs, encourage companies to increase customer loyalty to a product brand. Multiple regression analysis is applied to analyze the relationship between CRM on Brand Loyalty. The questionnaire was distributed to respondents by using self-administrative questionnaire and purposive sampling. Numbers of samples are 110 people and they are The Body Shop members. The results portrays that CRM which are Continuity Marketing, One-to-One Marketing along with Partnering Program have positive and significant regarding to a variable. To obtain the collected data, then it used validity and reliability tests. Validity test uses correlation value, Corrected Item-Total Correlation.
Wideband, Electrically Small, Near-Field Resonant Parasitic Dipole Antenna With Stable Radiation Performance

A wideband, electrically small, and near-field resonant parasitic (NFRP) dipole antenna with stable radiation performance is presented. Inspired by recent metasurface antennas (MSAs), a coax-fed dipole antenna is loaded with a specially-engineered interdigitated NFRP element. It exhibits identical operating mechanisms to a developed electrically large slot-fed MSA, i.e., it has the similar adjacent fundamental mode and antiphase mode, and thus has a wide bandwidth property and uniform radiation patterns. The electrically small prototype was fabricated and measured. The measured results, in good agreement with their simulated values, demonstrate a wide 14.4% −10 dB impedance bandwidth along with a stable realized gain of 1.4 dBi over the entire band. Moreover, stable and uniform radiation patterns together with high radiation efficiency values were also measured. These performance characteristics make the reported electrically small antennas attractive for wideband and space-limited applications.
Avaliação de dois sistemas de produção de frango de corte : uma visão multidisciplinar

O aumento de producao que levou o Brasil a ocupar a posicao de segundo maior produtor de frangos de corte do mundo se deve a intensificacao de criacao. Essa intensificacao teve como base varios aspectos que foram cuidadosamente controlados, dentre eles a nutricao e o manejo (sistemas de criacao, ambiencia, sanidade etc). Atualmente o que se observa em varias partes do mundo e a tendencia em produzir frangos de corte, com bem estar animal. Paralelamente no Brasil, vem ressurgindo em nova versao a criacao de frangos caipiras. O objetivo desse estudo foi avaliar indices zootecnicos obtidos durante a producao de dois sistemas de frango de corte em escala comercial (In situ), um intensivo, convencional (granja A) e outro semi-extensivo, caipira (granja B), para verificar as inter-relacoes entre bem-estar animal, manejo, saude animal e qualidade da carne. Na granja A foram alojados 14000 pintos enquanto que na granja B foram 7150. Observou-se que frangos da granja A apresentaram mais problemas locomotores: calos de pes, discondroplasia tibial quando comparados com frangos provenientes da granja B. Os frangos da granja A apresentaram alta prevalencia de necrose da cabeca do femur, melhor conversao alimentar e ganho de peso, embora tenham apresentado maior mortalidade A e B, foram respectivamente 5,32 e 1,34%. Quanto a Salmonella sp. e Mycoplasma sp. nao houve presenca de frangos reagentes nas duas granjas. Quanto a qualidade da carne em termos fisico-quimicos, o pH do peito apresentou-se menor significativamente para carcacas de frangos provenientes da granja A, enquanto o pH da coxa nao apresentou diferenca significativa. A forca de cisalhamento da carne de frango proveniente da granja A apresentou-se menor, quando comparada a de carcacas de frangos da granja B (1,972 para carcacas de A e 2,462 para as de B). A capacidade de retencao de agua nao diferiu entre as carcacaa provenientes das granjas. Em termos microbiologicos a Salmonella sp. nao foi encontrada em nenhuma carcaca de frango, embora a Listeria sp. tenha sido encontrada em 50% das carcacas analisadas. Os frangos da granja B estiveram em melhores condicoes de bem-estar animal. Com base nesses resultados foi possivel estimar que os indices zootecnicos da granja A foram melhores que os da granja B, entretanto os problemas locomotores foram maiores nos frangos provenientes da granja A Abstract
Eudaimonic Well-Being in Adolescents: The Role of Trait Emotional Intelligence and Personality

Eudaimonic well-being is related to activities that lead to self-realization and personal development, goals and growth. Emotional intelligence and personality traits play a role in the perception of emotions, self-esteem and motivation and therefore in well-being. Although previous studies have analyzed the relationship among personality, emotional intelligence and well-being, the relationship between all three constructs and the predictive value of personality and emotional intelligence in the study of eudaimonic well-being in adolescents remains to be analyzed. This study evaluates this relationship and the predictive role of personality and emotional intelligence in eudaimonic well-being in 1031 Spanish secondary school students aged 12 to 17 (49.37% male, average age = 14.91 years). A quantitative field survey was conducted which included the distribution of the eudaimonic well-being questionnaire, the emotional intelligence questionnaire and the personality questionnaire. Descriptive statistics and correlations among eudaimonic well-being, emotional intelligence and personality well-being were calculated using SPSS Statistical Package software. Stepwise multiple regression was used to estimate the predictive value of personality and emotional intelligence in the study of eudaimonic well-being. Finally, a structural equations model was designed with AMOS software. The results show that these constructs are related and that personality and emotional intelligence are important variables for eudaimonic well-being. In addition, activity and anxiety factors (related to personality) and emotionality and well-being factors (related to trait emotional intelligence) have been shown to have predictive value in the study of eudaimonic well-being in adolescents. These results underline the value of personality and emotional intelligence in the study of eudaimonic well-being and present new research perspectives.
Work-Family Organizational Support as a Predictor of Work-Family Conflict, Enrichment, and Balance: Crossover and Spillover Effects in Dual-Income Couples

Dual-income families are challenged by several issues in terms of conciliation between the working environment, the family context and the management of children. This paper, consistently with spillover and crossover hypotheses, aimed at examining the intermediate role of work-family balance, linking on work-family organizational support, work-to-family enrichment and conflict as predictors, and on family-life satisfaction of dual-income families’ both partners as final outcomes. It was expected that work-family organizational support would be related to lower work-to-family conflict and higher enrichment and, through them, with higher work-family balance; moreover, a positive association between work-family balance and family-life satisfaction of both partners was assumed. 390 double-income heterosexual couples participated in our study; 76.2% of the couples were parents. Structural equation modelling results showed that work-family balance was negatively predicted by work-to-family conflict and positively predicted by work-to-family enrichment. Furthermore, work-family organizational support positively predicted work-to-family enrichment, which also mediated its effect on work-family balance. Crossover and spillover effects were also confirmed, given that positive associations between work-family balance and family-life satisfaction of both partners were found. Implications for future research and organizational interventions aimed at both improving work-family balance and promoting greater satisfaction in family life are discussed.
Exploring the Systematic Attributes Influencing Gerontechnology Adoption for Elderly Users Using a Meta-Analysis

This study aims to explore the key systematic attributes influencing the acceptance of gerontechnology by seniors in response to global aging and rapid technological progress. A meta-analysis was carried out to quantitatively synthesize the results of 25 empirical studies published from 2010 to 2020. After standardized coding and descriptive statistics, as well as tests and analysis of main effects and heterogeneity, publication bias. The following results were obtained: Perceived usefulness and perceived ease of use have a significant positive impact on the user’s attitude and behavioral intention; performance expectancy, effort expectancy, trust, technical performance and subjective norm have a significant positive correlation with the user’s behavioral intention; social influence, facilitating conditions have a positive correlation with the user’s behavioral intention; anxiety has a significant negative correlation to the user’s behavioral intention. The key systematic influencing attributes are classified into three categories: (1) User individual characteristics; (2) product and technical characteristics; and (3) environmental characteristics. This study provides researchers and practitioners with a systematic evidence-based basis to reduce the gap in decision-making for gerontechnology practices.
The culture of free: Construct explication and democratic ramifications for readers’ willingness to pay for public affairs news

The homogenization and commoditization of news have risen since the emergence of the Internet, but have sharply increased in recent years due to economic constraints on news organizations and journalists’ labor conditions. This article explores readers’ perceptions and attitudes toward the economic and informative value of online news in particular, and toward the Internet as a means of news dissemination in general. Drawing upon 50 in-depth interviews with respondents from Spain aged 18–65 years, we conceptualize the lack of readers’ inclinations to pay for digital news as a culture of free and explore its main dimensions. Specifically, the culture of free is a strong orientation to considering news as a public good that must be free of charge, rooted in customs/habits of free consumption on the Internet over decades, fueled by free competition, subtended by advertising, and a lack of interest in the news more generally. Despite the fact that the digital versions might be theoretically considered as inferior, we argue that both products (print vs online) are equally valuable (economically and informatively) and the only divergence lies in their format and thus in their price.
LIDOR: A Lightweight DoS-Resilient Communication Protocol for Safety-Critical IoT Systems

IoT devices penetrate different aspects of our life including critical services, such as health monitoring, public safety, and autonomous driving. Such safety-critical IoT systems often consist of a large number of devices and need to withstand a vast range of known Denial-of-Service (DoS) network attacks to ensure a reliable operation while offering low-latency information dissemination. As the first solution to jointly achieve these goals, we propose LIDOR, a secure and lightweight multihop communication protocol designed to withstand all known variants of packet dropping attacks. Specifically, LIDOR relies on an end-to-end feedback mechanism to detect and react on unreliable links and draws solely on efficient symmetric-key cryptographic mechanisms to protect packets in transit. We show the overhead of LIDOR analytically and provide the proof of convergence for LIDOR which makes LIDOR resilient even to strong and hard-to-detect wormhole-supported grayhole attacks. In addition, we evaluate the performance via testbed experiments. The results indicate that LIDOR improves the reliability under DoS attacks by up to 91% and reduces network overhead by 32% compared to a state-of-the-art benchmark scheme.
Comparing floodplain evolution in channelized and unchannelized urban watersheds in Houston, Texas

In this study, we compare the ability of two riverine flood control approaches: channelization and stream preservation/setbacks, to alleviate the adverse impacts of rapid urbanization. To study the effects of structural intervention and urban development on the evolution of the floodplain, we have chosen two neighboring urban watersheds in Houston, TX: Brays Bayou and Buffalo Bayou. While the two watersheds are similar in size, topography, and development level, they have contrasting riverine flood management approaches. Brays Bayou is channelized, whereas Buffalo Bayou remains mostly unchannelized. We use the distributed hydrologic model, Vflo®, and the hydraulic model, HEC‐RAS, to analyze channel hydraulics and floodplain extent in the two watersheds under the 10‐ and 100‐year rainfall scenarios at three points in time: 1970s (early development), 2011 (current development), and 2040 (future development). We find that, while floodplain extent in both watersheds increases over time, the relative change in floodplain extent for Brays Bayou (channelized) is substantially larger than that for Buffalo Bayou (unchannelized). The results in this study contribute to a better understanding of the long‐term performance of two flood mitigation approaches (channelization and setbacks) on riverine flood risk and provide insight into best management practices for cities experiencing rapid urban growth.
Nutritional bioavailability of zinc

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Zero-Intelligence vs. Human Agents: An Experimental Analysis of the Efficiency of Double Auctions and Over-the-Counter Markets of Varying Sizes

We study two well-known electronic markets: an over-the-counter (OTC) market, in which each agent looks for the best counterpart through bilateral negotiations, and a double auc- tion (DA) market, in which traders post their quotes publicly. We focus on the DA-OTC efficiency gap and show how it varies with different market sizes (10, 20, 40, and 80 traders). We compare experimental results from a sample of 6,400 undergraduate students in Economics with zero-intelligent (ZI) agent-based simulations. Simulations with ZI traders show that the traded quantity (with respect to the efficient one) increases with market size under both DA and OTC. Experimental results with human traders confirm the same tendency under DA, while the share of periods in which the traded quantity is higher (lower) than the efficient one decreases (increases) with market size under OTC, ultimately leading to a DA-OTC efficiency gap increasing with market size. We rationalize these results by putting forward a novel game-theoretical model of OTC market as a repeated bargaining procedure under incomplete information on buyers’ valuations and sellers’ costs, showing how efficiency decreases slightly with size due to two counteracting effects: acceptance rates in earlier periods decrease with size, and earlier offers increase, but not always enough to compensate the decrease in acceptance rates.