Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigating the Impact of Mindfulness Leadership on Mental well-being and Organizational Commitment (Case study: Primary school principals in Sari)

Attention to mental well-being and organizational commitment as one of the important organizational issues can be developed under the influence of mindful leadership, therefore the present study aims to investigate the impact of mindful leadership on mental well-being and organizational commitment. The research method is descriptive-correlational modeling of structural equations. The statistical population of the study included all primary school principals in Sari with 186 people. According due to the statistical population, research questionnaires were distributed among all managers and in general 173 questionnaires were collected. To collect research data, three standard questionnaires of mindfulness leadership from Ehrlich(2017), mental well-being from Zheng et al. (2015) and organizational commitment from Baulfour &Wechsler (1996) were used. The validity of the questionnaire was confirmed by experts and confirmatory factor analysis. The reliability of the questionnaires was calculated based on Cronbach's alpha coefficient for the mindfulness leadership questionnaire 0.81, mental well-being 0.92 and organizational commitment 0.89. Research data after collection, were analyzed by using Pearson correlation coefficient test and structural equation model in Lisrel and SPSS statistical software. The results showed that the effect of mindfulness leadership on mental well-being and organizational commitment is positive and significant at the level of 0.01. Based on the results, mindful leadership can play an effective role in increasing the mental well-being and organizational commitment of school principals.
Exogenous melatonin improved photosynthetic efficiency of photosystem II by reversible phosphorylation of thylakoid proteins in wheat under osmotic stress

It has been well demonstrated that melatonin plays an important protective role in photosynthesis of plants under various environmental stresses, while the detailed mechanisms by which melatonin protects photosystem II (PSII) under environmental stress are still unclear. In the study, the effects of melatonin on photosynthetic efficiency, energy dissipation, PSII protein composition, and reversible phosphorylation of thylakoid proteins were investigated in wheat plants under osmotic stress. The results showed that osmotic stress significantly reduced pigment content, photochemical efficiency of PSII, oxygen-evolving activity, and dissipation of excess excitation energy, while 25 μM melatonin applications greatly alleviated their decline under osmotic stress. Western blot data of PSII proteins revealed that melatonin upregulated the levels of D1, Lhcb5, Lhcb6, PsbQ, and PsbS proteins in wheat exposed to osmotic stress. In addition, thylakoid membrane proteins were strongly phosphorylated in wheat under osmotic stress with or without melatonin. Furthermore, the results from PSII protein dephosphorylation showed that exogenous melatonin promoted the dephosphorylation of LCHII, CP43, and D1 under osmotic stress. Therefore, our findings suggest that melatonin can provide an effective protection for the photosynthetic apparatus by the regulation of PSII proteins and the reversible phosphorylation of thylakoid proteins under drought stress.
Generation of Dense and High-Precision Digital Elevation Model Using Low-Cost Unmanned Aerial Vehicle and Space-Borne TanDEM-X to Measure Exposed Area Change Due to Tidal Invasion

Tidal flats are internationally protected areas because of their environmental, geological, and economic value. Nevertheless, these are areas where casualties are common among visitors. To ensure the safety of visitors, efforts must be made to understand the geomorphologic characteristics of tidal flats. It is necessary to use three-dimensional (3-D) topographic data to clearly determine when an exposed tidal flat rapidly disappears as a result of periodic tidal fluctuations. Digital elevation models (DEMs) created using unmanned aerial vehicle (UAV) imaging and commercial photogrammetric software to measure tidal flats are produced using ground control points (GCPs). It is difficult to conduct field surveys and readings of image coordinates that correspond to these because tidal flat areas are difficult to access. The distribution of GCPs affects the accuracy of a DEM because the entire test region cannot be covered during a survey. Without GCPs, the DEM generated with the UAV images and photogrammetric software using the structure from the motion technique probably has nonlinear distortion such as a bowl shape. This article proposes a practical method of least-squares 3-D surface matching with a polynomial model (LS3D-PM) to correct a distorted DEM. For this LS3D-PM matching, a global TanDEM-X DEM was used instead of a field survey to collect the GCPs in a tidal flat. Practical testing was conducted using the proposed method. The root-mean-square error with respect to the height decreased from approximately 1.0 to 0.1 m, and the bowl-effect error was eliminated. With the DEM corrected using the proposed method and the classified orthoimages, the exposed tidal flat changes due to seawater invasion were estimated at different times during flood tide. This method has nontrivial technical values for quick and relatively precise DEM generations at a low cost compared to that of other techniques, particularly in emergency situations such as tsunamis, landslides, and earthquakes.
Heritage Management and Accessibility to World Heritage Sites in Jordan: A Field Work Analysis Study of Petra

ABSTRACT Accessibility for visitors to World Heritage Sites is an important issue in heritage management; therefore, accessing heritage sites has been seen as a sensitive issue and facing important criticism. This research is intended to examine visitor’s accessibility to World Heritage Sites by analyzing the context of cultural, physical, and financial accessibility. One aim of this research is to critically examine accessibility for tourists to Petra-Jordan's World Heritage Site. The purpose of the analysis is to provide an understanding of accessibility and of its opportunities and constraints in Petra. Empirical data was collected based on site field work at Petra involving a visual inspection of the site in addition to interviews with tour guides and tourists. ‏ The findings of this study show that a shift in heritage management policy has been made from reactive approaches to a more functional approach, accessibility issues have not been completely addressed; the translation into action of practical comprehensive accessibility measures is full of both conceptual and practical difficulties. This research is the first of its kind conducted in Jordan and specifically aims at scoping accessibility at a national World Heritage Site.
COVID-19 Vaccination in China: Adverse Effects and Its Impact on Health Care Working Decisions on Booster Dose

Although many research studies have concentrated on people’s willingness to take the COVID-19 vaccine, little attention has been paid to the underlying mechanism of consent. An understanding of potential factors and mechanisms that affect the willingness to receive a vaccination can contribute information critical for containing the pandemic. This study explored the effects of post-vaccination adverse reactions on the willingness to take the booster dose and the role of decision regret. A self-administered online survey was carried out in Taizhou, China. Questionnaires were completed by 1085 healthcare workers (HCWs), 1054 (97.1%) of whom had completed two doses of the COVID-19 vaccine. Mediation analysis methodology was applied in this study. Our study showed that post-vaccination adverse reactions in HCWs could decrease their willingness to take the booster dose. Of note, HCWs who experienced adverse reactions after vaccination would be more likely to regret their previous vaccination decisions, which, in turn, further reduced their willingness to receive a booster shot. Decision regret mediated the relationship between adverse post-vaccination reactions and a willingness to take the booster dose. The findings implied inextricable relationships among post-vaccination adverse reactions, decision regret, and willingness to take the booster dose. It is suggested that notice of these post-vaccination adverse reactions should be further incorporated into vaccine communication campaigns and policy interventions advocating booster doses to improve vaccine uptake intent and increase the willingness to receive booster doses of a COVID-19 vaccine.
Design and Performance Analysis of a Picosecond Pulse Generator

A picosecond pulse generator is designed to generate a stable differentiated Gaussian (monocycle) waveform. The design approach to increasing the center frequency, bandwidth, and peak-to-peak voltage, compared to previously reported ultrawideband (UWB) generators, is described. The 280-ps wide pulse achieves a 1:10 fractional bandwidth (FBW) ratio extending from 500 MHz to beyond 5 GHz at the −10-dB level. A measurement procedure is proposed for evaluating the jitter and noise performance of UWB pulse generators, and it is applied to the fabricated prototype. The procedure exploits jitter and noise definitions from high-speed digital electronics, which are adapted here for the jitter and noise evaluation of UWB pulse generators at microwave frequencies. The problems in obtaining the absolute and relative jitter of a UWB generator are discussed along with proposed solutions. The impact of the input trigger on the pulse stability is demonstrated through the dramatic improvement achieved by the integration of a jitter cleaner in the generator’s circuit.
A Study on Job Stress Factors Caused by Gender Ratio Imbalance in a Female-Dominated Workplace: Focusing on Male Airline Flight Attendants

This study investigated the factors that cause job stress among male flight attendants in a female-dominated airline organization, as well as the impact of job stress on their mental health and turnover intention. It also attempted to determine whether perceived family support, perceived organizational support, and job positions had moderating effects on male flight attendants’ job stress. Six job stress factors were identified through focus group interviews and a literature review. A survey was conducted from 1 January to 2 February 2022 to validate the research model, and 188 valid samples were used for statistical analysis. This study discovered that gender differences in communication, relationship conflict with colleagues, hierarchical organizational culture, and role overload had a direct impact on male flight attendants’ job stress. Job stress was found to have a negative impact on mental health and a positive impact on turnover intention. Perceived organizational support was also found to reduce job stress. This study is notably the first to address stress encountered by male flight attendants at work. It offers new directions for future airline personnel management and research. It also presents practical implications, such as the development of training and personnel management programs for male flight attendants.
Listening effort in individuals with noise-induced hearing loss

Abstract Objective The cognitive capacity allocates the resources effectively for effortless listening to speech presented in noise. This entity is minimally explored in individuals with noise-induced hearing loss (NIHL); therefore, the listening effort in individuals with NIHL at different signal-to-noise ratios was investigated. Method Forty participants with symmetrical mild sensorineural hearing loss were sub-grouped into control and clinical groups. The listening effort was measured using the dual-task paradigm at four different signal-to-noise conditions. In addition, a gap detection test was used to assess temporal processing ability. Results The repeat and recall scores were reduced with decreased signal-to-noise ratios in each group. These differences were significantly poorer in the clinical group than in the control group. A significant strong positive relation was observed between the recall and repeat scores of both groups for the listening effort tasks. Temporal processing impairment was significantly higher in the clinical group than in the control group. Conclusion Individuals with noise-induced hearing loss exhibit a significant temporal processing impairment that leads to effortful listening than hearing loss alone.
Application of spherical cap harmonic analysis to plasma convection mapping at high latitudes

The primary goal of this work is to develop, validate, and apply a new technique for mapping the high-latitude ionospheric plasma flow (convection pattern) from velocity measurements routinely performed by the Super Dual Auroral Radar (SuperDARN) network of high frequency (HF) radars. The currently employed FIT technique relies heavily on assumptions that are not always justifiable. A spherical cap harmonic analysis (SCHA) technique, traditionally used in handling geomagnetic field data, is introduced for mapping the high-latitude ionospheric convection pattern based on SuperDARN velocity measurements. The SCHA technique does not require contributions from a statistical model which is dependent on the magnitude and orientation of the interplanetary magnetic field (IMF), and does not confine the high-latitude flows to a specific region based on magnetic latitude. Several steps are taken to validate the SCHA convection mapping technique. First, it is demonstrated that the SCHA technique can reproduce an arbitrary pattern based on simulated data modified by a random noise component. SCHA maps of the global scale plasma flow pattern for various IMF conditions are next shown to be consistent with expectations for patterns reported in the literature. SCHA maps are compared to ion drifts measured by the Defense Meteorological Satellite Program (DMSP) satellites and with convection vectors inferred by merging SuperDARN measurements at beam crossings. The SCHA technique is shown to perform comparably to the FIT technique over regions of good data coverage. The SCHA technique provides a better representation of the ionospheric convection pattern for regions with limited data coverage and over regions of highly variable flow, particularly near the equatorward edge of the mapping region. SCHA analysis of SuperDARN data to create convection maps is expanded to include magnetometer measurements of the perturbation magnetic field. Plasma flow is determined from magnetometer data by combining the equivalent current determined from the external component of the perturbation magnetic field with a model of the ionospheric conductivity. The SCHA technique is used to investigate the reconfiguration of the convection pattern and changes to the cross polar-cap potential (CPCP) associated with a sudden transition in
Energy-Efficient Resource Allocation for Short Packet Transmission in MISO Multicarrier NOMA

In this article, we investigate energy efficiency (EE) maximization of short packet transmission (SPT) in a downlink multiple-input single-output (MISO) multi-carrier non-orthogonal multiple access (MC-NOMA) communication system. We use the ratio of the effective throughput to the power as a performance metric to formulate a non-convex mixed-integer nonlinear programming (MINLP) problem. Then, a low-complexity three-step optimization framework is proposed for MINLP optimization. Under a given maximum transmit power and channel blocklength of each subcarrier, a block coordinate descent (BCD) based method is proposed to jointly optimize the power allocation coefficient, transmission rate, and transmit power within a single subcarrier. Then, we transform the subcarrier allocation problem into a weighted bipartite graph matching problem and obtain the optimal subcarrier allocation scheme using the Kuhn-Munkres (KM) algorithm. Finally, a dynamic programming (DP) method is proposed to obtain the optimal channel blocklength allocation scheme. The simulation results validate the effectiveness of the proposed three-step optimization framework and indicate that the MC-NOMA system achieves higher EE and higher effective throughput than the orthogonal frequency-division multiple access (OFDMA) system in SPT.
Modified variational iteration method for an El Niño Southern Oscillation delayed oscillator

This paper studies a delayed air—sea coupled oscillator describing the physical mechanism of El Niño Southern Oscillation. The approximate expansions of the delayed differential equation's solution are obtained successfully by the modified variational iteration method. The numerical results illustrate the effectiveness and correctness of the method by comparing with the exact solution of the reduced model.
Asymptotic consistency under large entropy sampling designs with unequal probabilities

A large part of survey sampling literature is devoted to unequal probabilities sampling designs without replacement. Brewer and Hanif (1983) provided a summary of these sampling designs. The maximum entropy designs is one of them. Consistency results have been proven for the maximum entropy sampling (Hajek, 1964). The aim is to give sufficient conditions under which Hajek (1964) consistency results still hold for large entropy sampling designs which are different from the maximum entropy design. These conditions involve modes of convergence of sampling designs towards the maximum entropy design. We show that these conditions are satisfied for the popular Rao-Sampford (Rao, 1965, Sampford, 1967) design. Our consistency results are applied to the Hajek (1964) simple variance estimator. This estimator does not require joint-inclusion probabilities and can be easily estimated using weighted least squares regression (Berger, 2004, 2005b). Deville (1999) conjectured that this estimator is suitable for any sampling designs (see also Brewer and Donadio, 2003). Our consistency result gives regularity conditions under which this estimator is consistent which justifies Deville’s (1999) conjecture.
RUNX1 and RUNX3 Genes Expression Level in Adult Acute Lymphoblastic Leukemia—A Case Control Study

The genetic factors of adult acute lymphoblastic leukemia (ALL) development are only partially understood. The Runt-Related Transcription Factor (RUNX) gene family play a crucial role in hematological malignancies, serving both a tumor suppressor and promoter function. The aim of this study was the assessment of relative RUNX1 and RUNX3 genes expression level among adult ALL cases and a geographically and ethnically matched control group. The relative RUNX1 and RUNX3 genes expression level was assessed by qPCR. The investigated group comprised 60 adult patients newly diagnosed with ALL. The obtained results were compared with a group of 40 healthy individuals, as well as clinical and hematological parameters of patients, and submitted for statistical analysis. ALL patients tend to have significantly higher RUNX1 gene expression level compared with controls. This observation is also true for risk group stratification where high-risk (HR) patients presented higher levels of RUNX1. A higher RUNX1 transcript level correlates with greater leukocytosis while RUNX3 expression is reduced in Philadelphia chromosome bearers. The conducted study sustains the hypothesis that both a reduction and increase in the transcript level of RUNX family genes may be involved in leukemia pathogenesis, although their interaction is complex. In this context, overexpression of the RUNX1 gene in adult ALL cases in particular seems interesting. Obtained results should be interpreted with caution. Further analysis in this research field is needed.
Multi-particle localization for weakly interacting Bernouilli-Anderson models

We establish the complete spectral and strong dynamical localization for the one-dimensional multi-particle Bernouilli-Anderson tight-binding model with weak interaction. In higher dimension, we also show stability of a polynomial decay bound for the eigenvalue concentration and the multi-scale analysis from single-particle to multi-particle systems with an arbitrary large number of particles whose global interaction is sufficiently weak. We then deduce the complete spectral and strong dynamical localization of the underlying multi-particle system.
Multicellular Cell Seeding on a Chip: New Design and Optimization towards Commercialization

This paper shows both experimental and in-depth theoretical studies (including simulations and analytical solutions) on a microfluidic platform to optimize its design and use for 3D multicellular co-culture applications, e.g., creating a tissue-on-chip model for investigating diseases such as pulmonary arterial hypertension (PAH). A tissue microfluidic chip usually has more than two channels to seed cells and supply media. These channels are often separated by barriers made of micro-posts. The optimization for the structures of these micro-posts and their spacing distances is not considered previously, especially for the aspects of rapid and cost-efficient fabrication toward scaling up and commercialization. Our experimental and theoretical (COMSOL simulations and analytical solutions) results showed the followings: (i) The cell seeding was performed successfully for this platform when the pressure drops across the two posts were significantly larger than those across the channel width. The circular posts can be used in the position of hexagonal or other shapes. (ii) In this work, circular posts are fabricated and used for the first time. They offer an excellent barrier effect, i.e., prevent the liquid and gel from migrating from one channel to another. (iii) As for rapid and cost-efficient production, our computer-aided manufacturing (CAM) simulation confirms that circular-post fabrication is much easier and more rapid than hexagonal posts when utilizing micro-machining techniques, e.g., micro-milling for creating the master mold, i.e., the shim for polymer injection molding. The findings open up a possibility for rapid, cost-efficient, large-scale fabrication of the tissue chips using micro-milling instead of expensive clean-room (soft) lithography techniques, hence enhancing the production of biochips via thermoplastic polymer injection molding and realizing commercialization.
Numerical determination of a non-equilibrium many-body statistical operator for quasi-bound electrons in a gated nanowire system

We present a numerical approach to construct a non-equilibrium many-body statistical operator $\hat{\rho}_\mathrm{rel}$ for an adaptive subspace of relevant quasi-bound electronic states in a semiconductor nanowire-based field-effect transistor (NWFET). As a constraint for $\hat{\rho}_\mathrm{rel}$, we assume that the single-particle density matrix $\rho_1$ is a given quantity, resulting from a non-equilibrium Green's function (NEGF) calculation for the NWFET for a given set of applied voltages. Two different orthonormal (ON) eigenbases for $\hat{\rho}_\mathrm{rel}$ are considered: (A) a Slater determinant basis of natural orbitals (eigenstates of $\rho_1$) and (B) the eigenbasis of the projected many-body Hamiltonian $\hat{H}_\mathrm{rel}$ within a relevant Fock subspace of the system. As for the eigenvalues $w_n$ of $\hat{\rho}_\mathrm{rel}$, we furthermore assume that $w_n$ have a generalized Boltzmann form, parameterized by effective electrochemical potentials of natural orbitals and a given temperature. From the determined $\hat{\rho}_\mathrm{rel}$, in turn, one can calculate expectation values for any many-body observable within the relevant subspace. As an example, we analyze the electron density and the covariance of the density-density correlation function for representative electronic preparations of the NWFET.