Miracle-dz/UniFAR-FTUs huggingface dataset:
Volatile Profiling of Magnolia champaca Accessions by Gas Chromatography Mass Spectrometry Coupled with Chemometrics

Magnolia champaca (L.) Baill. ex Pierre of family Magnoliaceae, is a perennial tree with aromatic, ethnobotanical, and medicinal uses. The M. champaca leaf is reported to have a myriad of therapeutic activities, however, there are limited reports available on the chemical composition of the leaf essential oil of M. champaca. The present study explored the variation in the yield and chemical composition of leaf essential oil isolated from 52 accessions of M. champaca. Through hydrodistillation, essential oil yield was obtained, varied in the range of 0.06 ± 0.003% and 0.31 ± 0.015% (v/w) on a fresh weight basis. GC-MS analysis identified a total of 65 phytoconstituents accounting for 90.23 to 98.90% of the total oil. Sesquiterpene hydrocarbons (52.83 to 65.63%) constituted the major fraction followed by sesquiterpene alcohols (14.71 to 22.45%). The essential oils were found to be rich in β-elemene (6.64 to 38.80%), γ-muurolene (4.63 to 22.50%), and β-caryophyllene (1.10 to 20.74%). Chemometrics analyses such as PCA, PLS-DA, sPLS-DA, and cluster analyses such as hierarchical clustering, i.e., dendrogram and partitional clustering, i.e., K-means classified the essential oils of M. champaca populations into three different chemotypes: chemotype I (β-elemene), chemotype II (γ-muurolene) and chemotype III (β-caryophyllene). The chemical polymorphism analyzed in the studied populations would facilitate the selection of chemotypes with specific compounds. The chemotypes identified in the M. champaca populations could be developed as promising bio-resources for conservation and pharmaceutical application and further improvement of the taxa.
A new mean value property for harmonic functions relative to the Dunkl-Laplacian operator and applications

For a root system in R d furnished with its Coxeter-Weyl group W and a multiplicity nonnegative function k , we consider the associated commuting system of Dunkl operators D 1 ,. ,D d and the Dunkl-Laplacian Δ k = D 21 + . + D 2 d . This paper studies the properties of the functions u deﬁned on an open W -invariant set Ω ⊂ R d and satisfying Δ k u = 0 on Ω (D-harmonicity). In particular, we introduce and give a complete study of a new mean value operator which characterizes D-harmonicity. As applications we prove a strong maximum principle, a Harnack’s type theorem and a Bˆocher’s theorem for D-harmonic functions.
Evaluation and Determinants of the Digital Inclusive Financial Support Efficiency for Marine Carbon Sink Fisheries: Evidence from China

The development of digital inclusive finance has greatly improved the feasibility of financial inclusion. Therefore, in the context of the constrained financing of marine carbon sink fisheries, we try to investigate whether digital inclusive finance exhibits a supportive effect on marine carbon sink fisheries and thus enhances the capacity of marine carbon sinks. Specifically, this paper empirically calculates the grey correlation between the development of digital inclusive finance and marine carbon sinks based on data in nine coastal provinces of China from 2011 to 2019. The empirical results show that the grey relational coefficients between the above two in China are more than 0.5, revealing a significant positive correlation. Then, on this basis, we estimate the digital inclusive financial support efficiency (DIFSE) for marine carbon sink fisheries by applying the Super-EBM model. In addition, the determinants affecting the DIFSE for marine carbon sink fisheries selected based on the grounded theory are explored through the Tobit model. The conclusions are as follows. First, there are time-varying characteristics and regional heterogeneity in DIFSE. Generally, the effect of China’s digital inclusive financial support for marine carbon sink fisheries is expanding year by year. Among them, the DIFSE in the northern marine economic circle is currently the highest, followed by that in the south and east. Second, the input of productive factors, promotion of fishery skill, development of fishery technology, and Internet coverage will significantly increase the value of DIFSE, while output structure, income level, fishery disasters, and marine pollution will have significant negative effects on DIFSE. These empirical results can help policymakers better understand the contribution of digital inclusive finance to marine carbon sink fisheries and provide them with valuable information for the formulation of supportive policies.
Phase diagram of a frustrated spin- 12 J1 - J2 XXZ model on the honeycomb lattice

We study the zero-temperature ($T = 0$) ground-state (GS) properties of a frustrated spin-half $J_{1}^{XXZ}$--$J_{2}^{XXZ}$model on the honeycomb lattice with nearest-neighbor and next-nearest-neighbor interactions with exchange couplings $J_{1} > 0$ and $J_{2} \equiv \kappa J_{1} > 0$, respectively, using the coupled cluster method. Both interactions are of the anisotropic XXZ type. We present the $T = 0$ GS phase diagram of the model in the ranges $0 \leq \Delta \leq 1$ of the spin-space anisotropy parameter and $0 \leq \kappa \leq 1$ of the frustration parameter. A possible quantum spin-liquid region is identified.
Entrepreneurial Intention Among Students: The Effect of Self-efficacy and Entrepreneurial Attitude

To escalate the number of university students’ entrepreneurs, it is important to understand the role of self-efficacy and entrepreneurial attitude. The goal of this study is to investigate the role of self-efficacy in influencing students’ entrepreneurial attitudes and intentions. This study also examines the effect of entrepreneurial attitudes linked with students’ entrepreneurial intentions. The study used a cross-sectional survey design with a purposive sample of 100 university students at Universitas Pamulang in Indonesia. Structural Equation Modeling-Partial Least Square (SEM-PLS) is used to the connectivity among the independent–dependent variables in the research. The results of the study found that entrepreneurial self-efficacy had a significant positive effect on the entrepreneurial intentions of university students. In addition, attitudes towards entrepreneurship have a significant positive effect on entrepreneurial intentions. Indeed, entrepreneurial self-efficacy has a positive effect on attitudes towards entrepreneurship, and a significant influence is obtained between entrepreneurial self-efficacy on entrepreneurial intentions and attitudes towards entrepreneurship as an intervening variable
Deep observations of the globular cluster M15 with the MAGIC telescopes

A population of globular clusters (GCs) has been recently established by the Fermi-LAT telescope as a new class of GeV gamma-ray sources. Leptons accelerated to TeV energies, in the inner magnetospheres of MSPs or in their wind regions, should produce gamma-rays through the inverse Compton scattering in the dense radiation field from the huge population of stars. We have conducted deep observations of the GC M15 with the MAGIC telescopes and used 165 h in order to search for gamma-ray emission. A strong upper limit on the TeV gamma-ray flux < 3.2 x 10(-13) cm(-2) s(-1) above 300 GeV ( < 0.26 per cent of the Crab nebula flux) has been obtained. We interpret this limit as a constraint on the efficiency of the acceleration of leptons in the magnetospheres of the MSPs. We constrain the injection rate of relativistic leptons, eta(e), from the MSPs magnetospheres and their surrounding. We conclude that eta(e) must be lower than expected from the modelling of high-energy processes in MSP inner magnetospheres. For leptons accelerated with the power-law spectrum in the MSP wind regions, eta(e) is constrained to be much lower than derived for the wind regions around classical pulsars. These constraints are valid for the expected range of magnetic field strengths within the GC and for the range of likely energies of leptons injected from the inner magnetospheres, provided that the leptons are not removed from the GC very efficiently due to advection process. We discuss consequences of these constraints for the models of radiation processes around millisecond pulsars.
Ultraviolet fixed points in conformal gravity and general quadratic theories

We study the beta functions for four-dimensional conformal gravity using two different parametrizations of metric fluctuation, linear split and exponential parametrization. We find that after imposing the traceless conditions, the beta functions are the same in four dimensions though the dependence on the dimensions are quite different. This indicates the universality of these results. We also examine the beta functions in general quadratic theory with the Einstein and cosmological terms for exponential parametrization, and find that it leads to results for beta functions of dimensionful couplings different from linear split, though the fact that there exists a nontrivial fixed point remains the same and the fixed points also remain the same.
GENDER DIFFERENCES IN UNIVERSITY STUDENTS’ GYMNASTICS SPECIFIC SELF-EFFICACY AND PERFORMANCE

The aim of the study was to examine differences between male and female university students and their gymnastics specific self-efficacy and performance in gymnastics. In the study, 201 male and 160 female students and their 7 teachers participated voluntarily. The students attended the second year in the School of Physical Education and Sport Science (SPESS) and were obliged to take the course "Teaching of Gymnastics" for two semesters. Students’ self-efficacy was evaluated by suitable questionnaires at the beginning of the academic year, at the end of the first semester, and at the end of the academic year. Gymnastics skills’ difficulty was evaluated by teachers, and students’ performance was graded by their teachers at the end of the first semester, and at the end of the academic year. The main findings were: (a) both genders increased their self-efficacy during the academic year, while females had higher overall self-efficacy towards all gymnastics apparatus than males’ in the three measurements; (b) there were no gender differences in the average of the three measurements of self-efficacy toward common gymnastics skills; (c) there were no differences in gymnastics skills’ difficulty performed by males and females, and (d) females received higher grades than males. Considering the limitations of the study, the findings can be very useful for more effective organization and teaching of university gymnastics courses.
Changing US extreme temperature statistics

The rise in global mean temperature is an incomplete description of warming. For many purposes, including agriculture and human life, temperature extremes may be more important than temperature means and changes in local extremes may be more important than mean global changes. We define a non‐parametric statistic to describe extreme temperature behaviour by quantifying the frequency of local daily all‐time highs and lows, normalized by their frequency in the null hypothesis of no climate change. We average this metric over 1218 weather stations in the 48 contiguous United States. In the period 1893–2014 there were statistically significantly fewer all‐time record lows than would be found in the null hypothesis of unchanging climate. Record highs, by contrast, do not statistically significantly differ from the null hypothesis. The metric is evaluated by Monte Carlo simulation for stationary and warming temperature distributions, permitting description of the statistics of historic temperature records by equivalent warming rates.
The Initial Mass Function of Young Open Clusters in the Galaxy: A Preliminary Result

Abstract The initial mass function (IMF) is an essential tool with which to study star formation processes. We have initiated the photometric survey of young open clusters in the Galaxy, from which the stellar IMFs are obtained in a homogeneous way. A total of 16 famous young open clusters have preferentially been studied up to now. These clusters have a wide range of surface densities (log σ = −1 to 3 [stars pc−2] for stars with mass larger than 5M ⊙) and cluster masses (M cl = 165 to 50, 000M ⊙), and also are distributed in five different spiral arms in the Galaxy. It is possible to test the dependence of star formation processes on the global properties of individual clusters or environmental conditions. We present a preliminary result on the variation of the IMF in this paper.
Propagation of solitary waves and undular bores over variable topography

Description of the interaction of a shallow-water wave with variable topography is a classical and fundamental problem of fluid mechanics. The behaviour of linear waves and isolated solitary waves propagating over an uneven bottom is well understood. Much less is known about the propagation of nonlinear wavetrains over obstacles. For shallow-water waves, the nonlinear wavetrains are often generated in the form of undular bores, connecting two different basic flow states and having the structure of a slowly modulated periodic wave with a solitary wave at the leading edge. In this thesis, we examine the propagation of shallow-water undular bores over a nonuniform environment, and also subject to the effect of weak dissipation (turbulent bottom friction or volume viscosity). The study is performed in the framework of the variable-coefficient Korteweg-de Vries (vKdV) and variable-coefficient perturbed Korteweg-de Vries (vpKdV) equations. The behaviour of undular bores is compared with that of isolated solitary waves subject to the same external effects. We show that the interaction of the undular bore with variable topography can result in a number of adiabatic and non-adiabatic effects observed in different combinations depending on the specific bottom profile. The effects include: (i) the generation of a sequence of isolated solitons -- an expanding large-amplitude modulated solitary wavetrain propagating ahead of the bore; (ii) the generation of an extended weakly nonlinear wavetrain behind the bore; (iii) the formation of a transient multi-phase region inside the bore; (iv) a nonlocal variation of the leading solitary wave amplitude; (v) the change of the characteristics wavelength in the bore; and (vi) occurrence of a ``modulation phase shift" due to the interaction. The non-adiabatic effects (i) -- (iii) are new and to the best of our knowledge, have not been reported in previous studies. We use a combination of nonlinear modulation theory and numerical simulations to analyse these effects. In our work, we consider four prototypical variable topography profiles in our study: a slowly decreasing depth, a slowly increasing depth , a smooth bump and a smooth hole, which leads to qualitatively different undular bore deformation depending on the geometry of the slope. Also, we consider (numerically) a rapidly varying depth topography, a counterpart of the ``soliton fission" configuration. We show that all the effects mentioned above can also be observed when the undular bore propagates over a rapidly changing bottom . We then consider the modification of the variable topography effects on the undular bore by considering weak dissipation due to turbulent bottom friction or volume viscosity. The dissipation is modelled by appropriate right-hand side terms in the vKdV equation. The developed methods and results of our work can be extended to other problems involving the propagation of undular bores (dispersive shock waves in general) in variable media.
Local anticorrelation between star formation rate and gas-phase metallicity in disc galaxies

We thank Sebastian Sanchez for providing some of the data used in Section 4.2, Enrique Perez-Montero for help with the use of HIIC, and Matteo Miluzio for discussions and support during the early stages of the analysis. We also thank an anonymous referee whose comments help us improving the reliability of our argumentation. MF gratefully acknowledges the financial support of the Fundacao para a Ciencia e Tecnologia (FCT - Portugal), through the research grant SFRH/BPD/107801/2015. This work has been partly funded by the Spanish Ministry of Economy and Competitiveness, projects Estallidos AYA2013-47742-C04-02-P and AYA2016-79724-C4-2-P, as well as AYA2014-58861-C3-1-P.
Predicting Audience Verification Intention: The Impact of Partisanship, Source, Importance, and Information Familiarity on Willingness to Verify Headlines

This study employed a 2 × 3 × 2 experiment in the United States to understand how headlines trigger willingness to verify information, manipulating partisan leaning, source credibility, and factuality. Based on evolutionary psychology, we also explored how perceived importance and information familiarity influence willingness to verify information for accuracy or confirmation of preexisting beliefs. Findings show no differences between accuracy (truth-seeking) and confirmation motivations, both driven mainly by importance. Conservatives report less intent to verify for both motivations and rely more strongly on authority cues (source credibility), while liberals rely on prior familiarity with content. Implications for news literacy efforts are discussed.
The second-stage moderating role of situational context on the relationships between eWOM and online purchase behaviour

ABSTRACT This research aims to examine the second-stage moderating role of situational context of the pandemic on the relationships between different aspects of electronic word of mouth (eWOM) and actual online purchase behaviour through intention. The proposed model was tested based on 546 experienced online customers during the fourth wave of COVID-19 in Hochiminh City. Without the moderating effect of situational context (e.g. disease avoidance), the results showed that the effect of either eWOM credibility or quantity on actual online purchase behaviour is positively partially mediated through intention. With the moderating effect of situational context, low versus high situational context can make the online purchase intention-behaviour gap from a minimal difference to a large difference even though the relationship between intention and behaviour is still significant. This research contributes to theory regarding the actual online purchase behaviour and the situational context that affects the translation of intention into behaviour. Besides the implications for eWOM, the current study also reminds the importance of actual online purchase behaviour in the real business world as well as suggests the use of scarceness persuasion tactics to increase the customers’ stimulation.
Commercially Available Molecular Approaches to Evaluate Endometrial Receptivity: A Systematic Review and Critical Analysis of the Literature

Despite the advances in the field of reproductive medicine, implantation failure represents a challenging condition affecting 10–30% of patients subjected to in vitro fertilization (IVF). Research has focused on the identification of molecules playing crucial roles in endometrial receptivity, with the aim of designing predictive tools for efficient detection of the implantation window. To that end, novel molecular genomic and transcriptomic approaches have been introduced as promising tools to enable personalized approaches with the aim of optimizing embryo transfer dating. However, the clinical value of these approaches remains unclear. The aim of this study is to provide a systematic review and critical analysis of the existing evidence regarding the employment of commercially available novel approaches to evaluate endometrial receptivity. An Embase and PubMed/Medline search was performed on 1 February 2022. From the 475 articles yielded, only 27 were included and analyzed. The considerable heterogeneity of the included articles indicates the uniqueness of the implantation window, showcasing that the optimal time for embryo transfer varies significantly between women. Moreover, this study provides information regarding the technical aspects of these advanced molecular tools, as well as an analysis of novel possible biomarkers for endometrial receptivity, providing a basis for future research in the field.
Exploring the Artemisia Genus: An Insight into the Phytochemical and Multi-Biological Potential of A. campestris subsp. lednicensis (Spreng.) Greuter & Raab-Straube

The Artemisia L. genus includes over five hundred species with great economic and medicinal properties. Our study aimed to provide a comprehensive metabolite and bioactivity profile of Artemisia campestris subsp. lednicensis (Spreng.) Greuter & Raab-Straube collected from north-eastern Romania. Liquid chromatography with tandem high-resolution mass spectrometry (LC-HRMS/MS) analysis of different polarity extracts obtained from the aerial parts led to the identification of twelve flavonoids, three phenolic acids, two sesquiterpene lactones, two fatty acids, one coumarin, and one lignan. The antioxidant and enzyme inhibitory properties were shown in the DPPH (0.71–213.68 mg TE/g) and ABTS (20.57–356.35 mg TE/g) radical scavenging, CUPRAC (38.56–311.21 mg TE/g), FRAP (121.68–202.34 mg TE/g), chelating (12.88–22.25 mg EDTAE/g), phosphomolybdenum (0.92–2.11 mmol TE/g), anti-acetylcholinesterase (0.15–3.64 mg GALAE/g), anti-butyrylcholinesterase (0–3.18 mg GALAE/g), anti-amylase (0.05–0.38 mmol ACAE/g), anti-glucosidase (0.43–2.21 mmol ACAE/g), and anti-tyrosinase (18.62–48.60 mg KAE/g) assays. At 100 μg/mL, Artemisia extracts downregulated the secretion of tumor necrosis factor (TNF)-α in a lipopolysaccharide (LPS)-stimulated human neutrophil model (29.05–53.08% of LPS+ control). Finally, the Artemisia samples showed moderate to weak activity (minimum inhibitory concentration (MIC) > 625 mg/L) against the seventeen tested microbial strains (bacteria, yeasts, and dermatophytes). Overall, our study shows that A. campestris subsp. lednicensis is a promising source of bioactives with putative use as food, pharmaceutical and cosmetic ingredients.
PHOTOPHORESIS IN A DILUTE, OPTICALLY THICK MEDIUM AND DUST MOTION IN PROTOPLANETARY DISKS

We derive expressions for the photophoretic force on opaque spherical particles in a dilute gas in the optically thick regime where the radiation field is in local thermal equilibrium. Under those conditions, the radiation field has a simple form, leading to well defined analytical approximations for the photophoretic force that also consider both the internal thermal conduction within the particle, and the effects of heat conduction and radiation to the surrounding gas. We derive these results for homogeneous spherical particles; and for the double layered spheres appropriate for modeling solid grains with porous aggregate mantles. Then, as a specific astrophysical application of these general physical results, we explore the parameter space relevant to the photophoresis driven drift of dust in protoplanetary disks. We show that highly porous silicate grains have sufficiently low thermal conductivities that photophoretic effects, such as significant relative velocities between particles with differing porosity or levitation above the midplane, are expected to occur.
Jet Directions in Seyfert Galaxies: Radio Continuum Imaging Data

We present the results of VLA A-array 8.46 GHz continuum imaging of 55 Seyfert galaxies (19 Seyfert 1's and 36 Seyfert 2's). These galaxies are part of a larger sample of 88 Seyfert galaxies, selected from mostly isotropic properties, the flux at 60 μm, and warm infrared 25-60 μm colors. These images are used to study the structure of the radio continuum emission of these galaxies and their position angles, in the case of extended sources. These data, combined with information from broadband B and I observations, have been used to study the orientation of radio jets relative to the plane of their host galaxies (Kinney et al.).