Miracle-dz/UniFAR-FTUs huggingface dataset:
Experimental Comparison of Designed Inductance Coils for Wireless Power Transfer

Abstract The paper is devoted to the comparison of different types and different values of coils for inductive power transfer in the classical circuit. This topic is relevant with the growing demand and interest in wireless chargers and the diversity of inductance coils for wireless power transfer. The main geometric parameters affecting the coil efficiency are determined. For experimental verification the classical scheme for wireless power transfer is used based on a full-bridge inverter. Different coils at different distance between them, lateral misalignment and load resistance changed are tested. It is determined that single-layer coils have better transmit-receive efficiency than double-layer ones, especially with series-series compensation topology. The application of two-layer coils is recommended in case of high input current. The investigated samples have efficiency at the level of industrial standards. The design approach can be used for any level of power and application, including wireless charging of electric vehicle batteries.
Interactive Music Genre Exploration with Visualization and Mood Control

Recommender systems can be used to help users discover novel items and explore new tastes, for example in music genre exploration. However, little work has studied how to improve users’ understandability and acceptance of the novel items as well as support users to explore a new domain. In this paper, we investigate how two different visualizations and mood control influence the perceived control, informativeness and understandability of a music genre exploration tool, and further to improve the helpfulness for new music genre exploration. Specifically, we compare a bar chart visualization used by earlier work to a contour plot which allows users to compare their musical preferences with both the recommended tracks as well as the new genre. Mood control is implemented with two sliders to set a preferred mood on energy and valence features (that correlate with psychological mood dimensions). In the online user study, mood control was manipulated between subjects, and the visualizations were compared within subjects. During the study (N=102), we measured users’ subjective perceptions, experiences and the interactions with the system. Our results show that the contour plot visualization is perceived more helpful to explore new genres than the bar chart visualization, as the contour plot is perceived to be more informative and understandable. Users spent significantly more time and used the mood control more in the contour plot than in the bar chart visualization. Overall, our results show that the contour plot visualization combined with mood control serves as the most helpful way for new music genre exploration, because the mood control is easier to understand and use when made transparent via an informative visualization.
Multi-modal Multi-scale Attention Guidance in Cyber-Physical Environments

This work proposes a new method for guiding a user’s attention towards objects of interest in a cyber-physical environment (CPE). CPEs are environments that contain several computing systems that interact with each other and with the physical world. These environments contain several sensors (cameras, eye trackers, etc.) and output devices (lamps, screens, speakers, etc.). These devices can be used to first track the user’s position, orientation, and focus of attention to then find the most suitable output device to guide the user’s attention towards a target object. We argue that the most suitable device in this context is the one that attracts attention closest to the target and is salient enough to capture the user’s attention. The method is implemented as a function which estimates the ”closeness” and ”salience” of each visual and auditive output device in the environment. Some parameters of this method are then evaluated through a user study in the context of a virtual reality supermarket. The results show that multi-modal guidance can lead to better guiding performance. However, this depends on the set parameters.
Playing Politics: How Sabarimala Played Out on TikTok

TikTok is commonly known as a playful, silly platform where teenagers share 15-second videos of crazy stunts or act out funny snippets from popular culture. In the past few years, it has experienced exponential growth and popularity, unseating Facebook as the most downloaded app. Interestingly, recent news coverage notes the emergence of TikTok as a political actor in the Indian context. They raise concerns over the abundance of divisive content, hate speech, and the lack of platform accountability in countering these issues. In this article, we analyze how politics is performed on TikTok and how the platform’s design shapes such expressions and their circulation. What does the playful architecture of TikTok mean to the nature of its political discourse and participation? To answer this, we review existing academic work on play, media, and political participation and then examine the case of Sabarimala through the double lens of ludic engagement and platform-specific features. The efficacy of play as a productive heuristic to study political contention on social media platforms is demonstrated. Finally, we turn to ludo-literacy as a potential strategy that can reveal the structures that order playful political participation and can initiate alternative modes of playing politics.
Can Less Ever Be More? A Model of Emotion Regulation Repertoire of Social Support (ERROSS)

Do people really fare better if they can rely on many social ties? Research suggests that benefits of interpersonal emotion regulation (ER) can be derived from both large and small social networks. Building on the intrapersonal regulatory flexibility model, we propose the emotion regulation repertoire of social support (ERROSS) model that views effective socioemotional support as the combination of network size and ER strategies, resulting in a repertoire of ER resources one can draw on. Best outcomes in mental health should follow from both a large network and a diverse repertoire of strategies. ERROSS is applied as an example in the context of bereavement, and specific contributions of the model are highlighted.
Stereotype Threat and Its Problems: Theory Misspecification in Research, Consequences, and Remedies

Despite the explosive growth in stereotype threat (ST) research over the decades, a substantive amount of variability in ST effects still cannot be explained by extant research. While some attribute this unexplained heterogeneity to yet unidentified ST mechanisms, we explored an alternate hypothesis that ST theory is often misspecified in experimental research design, which introduces experimental noise (and hence variability) in stereotype threat effects unlikely to be explained by extant moderators. This study used multilevel meta-analysis to examine the impact of ST misspecification in research design on ST outcomes. Results revealed that ST effects were artificially inflated in studies that failed to include essential conditions necessary for its occurrence. Because most studies in the meta-analysis had either excluded or partially included these conditions, findings from this study suggest that ST effects on women’s performance might be smaller than previously reported in primary and secondary (meta-analytic) studies.
Not Your Parents’ Organization? Human Resource Development Practices for Sustainable Flex Work Environments

The Problem. Everything we know and understand about flexible work arrangements (FWAs) revolves around extant research exploring the effects and effectiveness of FWAs based on samples in which organizations and/or employees freely adopted their use. In a post COVID-19 world, organizations implemented FWAs and employees who may not have been prepared for or desired such arrangements. This has resulted in implementing FWAs in situations where the job, culture, or person does not “support” FWAs. The Solution. We suggest the economic uncertainty of the ongoing COVID-19 pandemic should shift Human Resource Development (HRD) attention to managing the organizational climate of work and work expectations, specifically with regard to FWAs. We discuss how HRD practitioners can help, specifically by preparing managers for enhanced communication and feedback, as well as through supporting employee development via proactive job crafting, to better prepare managers and workers to accept and flourish in FWAs both short and long term. The Stakeholders. The stakeholders for this article include decision-makers in organizations interested in driving success through long-term initiatives rooted in developing human capital. In addition, this article should resonate with HRD professionals interested in working with managers and employees to systematically build sustainable FWA systems.
Online search engines and online travel agencies: A Comparative Approach

The present research provides insights into the complex landscape of online advertising channels to support tourism organizations in formulating their marketing strategies. People often use search engines and online travel agencies in a very similar way. The aim and sequence of actions that consumers perform on Google or Booking.com are exactly the same, but for the potential sellers each channel presents different costs and attributes. In the Google model, firms make bids and pay on a cost-per-click basis. In the Booking.com model, firms pay commissions based on the value of services sold. Under budget constraints, one of the first problems a company may encounter is determining the resource allocation to different channels. Hence, an analytical model is introduced to compare the profits generated from online search engines and online travel agencies. Assuming a trade-off between different online marketing channels, the study suggests the maximum cost per click that a tourism organization should pay to benefit from search engine marketing as much as from online travel agencies. The analytical model is tested empirically by using data from two hotels and managerial implications are discussed.
Passport to the future: Boosting academic outcomes and citizenship through urban debate

This study examines the impact of a university-high school debate mentoring program on educational outcomes of high school graduates attending a racially segregated school in New Jersey, USA. Evidence shows that from 2011 to 2018, participants had stronger grade point average growth, higher cumulative grade point averages, and higher SAT scores relative to non-debating graduates. The sample (N = 275) consists of 55 high school graduates who competed on the debate team and a control group of 220 non-debating graduates. Findings indicate debate graduates experienced a 0.81 GPA growth (2.5–3.31) from 9th grade to 12th grade while non-debate graduates exhibited a markedly lower 0.10 GPA growth (2.2–2.3). Debaters scored higher on particular sections of the SAT exam and overall SAT scores. The study provides evidence of the potential efficacy of debate team membership on student outcomes.
High-resolution structural characterization of a heterogeneous biocatalyst using solid-state NMR

Solid-state magic-angle spinning (MAS) NMR spectroscopy was employed to investigate structural detail in the enzyme human carbonic anhydrase II (hCA II) in uniformly 15N and selectively (15N leucine) enriched states, covalently immobilized on epoxy-functionalized silica. The immobilized hCA II retained 71% of its specific enzymatic activity when compared to the free enzyme in solution. On the basis of the one- and two-dimensional 1H, 13C, 15N, and 29Si MAS NMR spectra, chemical shift assignments could be obtained from the silica support, covalent linker, and immobilized enzyme. The successful covalent immobilization of the enzyme on epoxy–silica was confirmed by the appearance of signals from the aromatic and carbonyl groups in the immobilized enzyme in addition to signals from the modified support. Most notably, our MAS NMR results suggest that the covalent immobilization of the hCA II on epoxy–silica does not significantly affect the structural integrity of the protein.
Energetic electron detection packages on board Chinese navigation satellites in MEO

Energetic electron measurements and spacecraft charging are of great significance for theoretical research in space physics and space weather applications. In this paper, the energetic electron detection package (EEDP) deployed on three Chinese navigation satellites in medium Earth orbit (MEO) is reviewed. The instrument was developed by the space science payload team led by Peking University. The EEDP includes a pinhole medium‐energy electron spectrometer (MES), a high‐energy electron detector (HED) based on ΔE‐E telescope technology, and a deep dielectric charging monitor (DDCM). The MES measures the energy spectra of 50−600 keV electrons from nine directions with a 180°×30° field of view (FOV). The HED measures the energy spectrum of 0.5−3.0 MeV electrons from one direction with a 30° cone‐angle FOV. The ground test and calibration results indicate that these three sensors exhibit excellent performance. Preliminary observations show that the electron spectra measured by the MES and HED are in good agreement with the results from the magnetic electron‐ion spectrometer (MagEIS) of the Van Allen Probes spacecraft, with an average relative deviation of 27.3% for the energy spectra. The charging currents and voltages measured by the DDCM during storms are consistent with the high‐energy electron observations of the HED, demonstrating the effectiveness of the DDCM. The observations of the EEDP on board the three MEO satellites can provide important support for theoretical research on the radiation belts and the applications related to space weather.
Electric field induced electronic properties modification of ZrS2/HfS2 van der Waals heterostructure

By using first-principles calculations, we investigate the electronic properties of a ZrS2/HfS2 heterostructure modulated by an external electric field. An intrinsic type-I band alignment with an indirect band gap is demonstrated, which can be tuned to become type-II by applying an electric field. The spatial distribution of electron–hole pairs with the lowest energy is accordingly separated between different layers of the heterostructure. Moreover, the band gap exhibits linear variation and a semiconductor-to-metal transition can be realized. The underlying mechanism can be attributed to the linear shifts of band edges along with the quasi-Fermi levels splitting of the respective layers, induced by the charge transfer between layers of the heterostructure driven by the external electric field. Our results provide great application potential of the ZrS2/HfS2 heterostructure in optoelectronic devices.
Joint User Identification and Channel Estimation via Exploiting Spatial Channel Covariance in mMTC

Grant-free random access is a key enabler in massive machine-type communications (mMTC) to reduce signalling overhead and latency thereby improving the energy efficiency. One of its main challenges lies in joint user activity identification and channel estimation (JUICE). Due to the sporadic mMTC traffic, JUICE can be solved as a compressive sensing (CS) problem. We address CS-based JUICE in uplink with single-antenna transmitters and a multiantenna base station under spatially correlated fading channels. We formulate a novel CS problem that utilizes prior information on the second order statistics of the channel of each user to improve the performance. We propose a method based on alternating direction method of multipliers to solve the JUICE efficiently. The simulation results show that the proposed method significantly improves the user identification accuracy and channel estimation performance with lower signalling overhead as compared to the baseline schemes.
EFFECTS OF THE NITROGEN SOURCE AND CONCENTRATION ON N FRACTIONS IN OLIVE SEEDLINGS

The effeet of! he souree (KNO" (NH')2So. and NH,NO,) and concentration (5, lO, 20 and 30 mM N) of inorganic nitro gen on total N incorporation and distribulion into different fractions (ammoniacal, ami no, amide and protein) has been determined in olive seedlings. Increasing concentrations of lhe nitrogen source resulted in higher total N content in tissues, e"cept for KNO, at 10 mM N. In addition, ammonium applications clearly increased ! he N-amino and N-ammoniacal fractions. Incorporntion of N imo Narnide was not affected significantly by any treatment, and only KNO, and NH,NO, additions showed significant increasing concentrations of N-protein fractions.
Quora Question Pairs

Quora Question Pairs is an active Kaggle Competition, which challenges participants to tackle the natural language processing (NLP) problem of identifying duplicate questions [1]. The issue of duplicate questions stems from the enormous number of visitors on the Quora website (a platform for asking questions and connecting with people that contribute answers), making it hard to avoid having similar worded questions from different users. Effectively detecting duplicate questions not only saves time for seekers to find the best answer to their questions, but also reduces the effort of writers in terms of answering multiple versions of the same question[1].
Mechanisms of biochar and vermicompost in suppression of root rot fungal disease of common bean (Phaseolus vulgaris L)

© 2021 African Journal of Biological Sciences. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Abstract Composts and biochar improve soil fertility and also suppress fungal soil-borne diseases through their ability to promote beneficial microbial communities. The study sought to determine the mechanisms through which biochar and vermicompost suppress root rot pathogens. Extracts of biochar and vermicompost were used for spore germination, mycelial growth tests at different concentrations. To assess the ability of biochar and vermicompost to adsorb signaling molecules from bean, root and seed exudates were filtered through biochar and vermicompost. Antagonistic activity of Trichoderma harzianum and Penicillium spp against root rot pathogens was also assessed. Germination of Pythium ultimum sporangia and Fusarium solani macroconidia was significantly inhibited by various concentrations of water extractible substances from biochar and vermicompost. Water extracts from biochar and vermicompost inhibited the germination of root rot propagules and reduced the ability of root and seed exudates to induce sporangial and conidial germination. Trichoderma harzianum and Penicillium spp significantly inhibited the growth of Pythium ultimum sporangia and Fusarium solani. The water extracts significantly reduced the growth of root rot colonies on PDA plates. Biochar and Vermicompost greatly inhibit germination of spores and mycelial growth of root rot pathogens.
The Effect of Macroeconomic Uncertainty on Household Spending

We use randomized treatments that provide different types of information about the first and/or second moments of future economic growth to generate exogenous changes in the perceived macroeconomic uncertainty of treated households. The effects on their spending decisions relative to an untreated control group are measured in follow-up surveys. Our results indicate that, after taking into account first moments, higher macroeconomic uncertainty induces households to significantly and persistently reduce their total monthly spending in subsequent months. Changes in spending are broad based across spending categories and apply to larger durable good purchases as well. (JEL D12, D81, D84, E21, E23, G51)
Combining ability studies in the advanced lines of bottle gourd [Lagenaria siceraria (mol.) Standl.] for growth, earliness and yield parameters

The present investigation was carried out with the objective to study the combining ability of parents and hybrids for growth, earliness and yield parameters in bottle gourd. General combining ability effects of parents and sca effects of crosses were highly significant for the characters studied. The parents Bot.G-4, Bot.G-7 and Kolkata Collection are the good general combiners for fruit yield per vine. The line Bot.G-6-2 exhibited significant and maximum gca effects for vine length and number of branches. The line Kolkata Collection showed maximum and significant gca effects for days to first female flower, days to first harvest and sex ratio. Tester Samrat exhibited significant gca effects for vine length, number of branches, nodes up to first female flower, sex ratio and fruit yield per vine. Among crosses, the cross Bot.G-6-2 X Arka Bahar exhibited significant sca effects for vine length and fruit yield per vine. While the cross Bot.G-6-1 X Samrat showed significant sca effects for days to first female flowering and days to first harvest. The cross Bot.G-6 X Samrat exhibited maximum and significant sca effects for nodes up to first female flowering and sex ratio. It is evident that gca or sca effects in parents or hybrids were in desirable for some other traits. Therefore it is important to ascertain the status of parent or hybrid with respective to combining ability effects over a number of component characters.
Characteristics of Magnetized Dusty Plasma Sheath With Two Ion Species and q-Nonextensive Electrons

The effect of <inline-formula> <tex-math notation="LaTeX">$q$ </tex-math></inline-formula>-nonextensive electrons, nature, and magnitude of dust charge on magnetized dusty plasma sheath with two ion species has been numerically investigated via fluid model. The initial common speed of ion species at the sheath entrance has been extended, which increases from subsonic to supersonic with the decrease in nonextensive parameter <inline-formula> <tex-math notation="LaTeX">$q$ </tex-math></inline-formula> and ion-neutral drag force as well. The presence of super extensive primary electrons (<inline-formula> <tex-math notation="LaTeX">$q < 1$ </tex-math></inline-formula>) has significantly affected the sheath parameters characterizing the dusty plasma sheath: dust charging, potential profile, ion and electron densities profile, ion velocity profile, and dust dynamics. It is found that the negatively charged dust grains accelerate in the region of weak electric field, whereas the fluctuation decreases in the region of strong electric field. A significant change has been observed in dust dynamics with the presence of two different natures of dust charges and its magnitudes. The velocity fluctuations of negatively and positively charged grains are in opposite phase. Furthermore, the comparative study of dust velocity in the presence and absence of dust-neutral collisions has been presented.
Few-shot Fish Image Generation and Classification

Scientific studies on fishes have considerable importance to the fishery industry and marine ecosystem. Fish images are typically collected by scuba divers or autonomous underwater vehicles and then annotated manually by marine biologists. In recent years, with the rise of deep learning, the field of image classification has been greatly improved. But, fish image classification which can be considered as fine-grained problem is more challenging than common image classification. Usually, fish images are low-quality and belong to small-scale data, while classic CNN models require a large quantity of high-quality data to gain excellent results. For few-shot fish images, it's hard to get rich diversity by rotation, slight transform, and upsampling. In this paper, our method could obtain few-shot classes which are translated from large-scale sample classes, while maintaining the intra-class similarity, diversity and inter-class identifiabilityso as to improve the classification effect of fish image,