Miracle-dz/UniFAR-FTUs huggingface dataset:
Baryons as Three Flavor Solitons

The description of baryons as soliton solutions of effective meson theories for three flavor (up, down, strange) degrees of freedom is reviewed and the phenomenological implications are illuminated. In the collective approach the soliton configuration is equipped with baryon quantum numbers by canonical quantization of the coordinates describing the flavor orientation. The baryon spectrum resulting from exact diagonalization of the collective Hamiltonian is discussed. The prediction of static properties such as the baryon magnetic moments and the Cabibbo matrix elements for semi--leptonic hyperon decays are explored with regard to the influence of flavor symmetry breaking. In particular, the role of strange degrees of freedom in the nucleon is investigated for both the vector and axial--vector current matrix elements. The latter are discussed extensively within in the context of the {\it proton spin puzzle}. The influence of flavor symmetry breaking on the shape of the soliton is examined and observed to cause significant deviations from flavor covariant predictions on the baryon magnetic moments. Short range effects are incorporated by a chiral invariant inclusion of vector meson fields. These extensions are necessary to properly describe the singlet axial--vector current and the neutron proton mass difference. The effects of the vector meson excitations on baryon properties are also considered. The bound state description of hyperons and its generalization to baryons containing a heavy quark are illustrated. In the case of the Skyrme model a comparison is performed between the collective quantization scheme and bound state approach. Finally, the Nambu--Jona--Lasinio model is employed to demonstrate that hyperons can be described as solitons in a microscopic theory of the quark
Design, Synthesis and Biological Evaluation of Novel 1,3,5-Triazines: Effect of Aromatic Ring Decoration on Affinity to 5-HT7 Receptor

Considering the key functions of the 5-HT7 receptor, especially in psychiatry, and the fact that effective and selective 5-HT7 receptor ligands are yet to be available, in this work, we designed and synthesized novel 1,3,5-triazine derivatives particularly based on the evaluation of the effect of substituents at aromatic rings on biological activity. The tested compounds showed high affinity to the 5-HT7 receptor, particularly ligands N2-(2-(5-fluoro-1H-indol-3-yl)ethyl)-N4-phenethyl-1,3,5-triazine-2,4,6-triamine 2 (Ki = 8 nM) and N2-(2-(1H-indol-3-yl)ethyl)-N4-(2-((4-fluorophenyl)amino)ethyl)-1,3,5-triazine-2,4,6-triamine 12 (Ki = 18 nM) which showed moderate metabolic stability, and affinity to the CYP3A4 isoenzyme. As for the hepatotoxicity evaluation, the tested compounds showed moderate cytotoxicity only at concentrations above 50 µM. Compound 12 exhibited less cardiotoxic effect than 2 on Danio rerio in vivo model.
Dedicated CCTA Followed by High-Pitch Scanning versus TRO-CT for Contrast Media and Radiation Dose Reduction: A Retrospective Study

We aimed to compare dedicated coronary computed tomography angiography (CCTA) followed by high-pitch scanning and triple-rule-out computed tomography angiography (TRO-CTA) in terms of radiation dose, contrast media (CM) use, and image quality. Patients with acute chest pain were retrospectively enrolled and assigned to group A (n = 55; scanned with dedicated CCTA followed by high-pitch scanning) or group B (n = 45; with TRO-CTA). Patient characteristics, radiation dose, CM use, and quantitative parameters (CT value, image noise, signal-to-noise ratio, contrast-to-noise ratio, and image quality score) of pulmonary arteries (PAs), thoracic aortae (TAs), and coronary arteries (CAs) were compared. The total effective dose was significantly lower in group A (6.25 ± 2.94 mSv) than B (8.93 ± 4.08 mSv; p < 0.001). CM volume was significantly lower in group A (75.7 ± 8.9 mL) than B (95.0 ± 0 mL; p < 0.001). PA and TA image quality were significantly better in group B, whereas that of CA was significantly better in group A. Qualitative image scores of PA and TA scans rated by radiologists were similar, whereas that of CA scans was significantly higher in group A than B (p < 0.001). Dedicated CCTA followed by high-pitch scanning demonstrated lower radiation doses and CM volume without debasing qualities of PA, TA, and CA scans than did TRO-CTA.
Study of the 40 Ca(a,g) 44 Ti reaction at stellar temperatures with DRAGON

C. Vockenhuber ac, C.O. Ouelletb, L. Buchmanna, J. Caggianoa, A.A. Chenb, H. Crawfordac, J.M. D’Auriac, B. Davidsa, L. Fogartya, D. Frekersd, A. Husseine, D.A. Hutcheona, W. Kutschera f , A.M. Lairdg, R. Lewisg, E. O’Connora, D. Ottewella, M. Paulh, M.M. Pavana, J. Pearsonab, C. Ruizac, G. Ruprechta, M. Trinczeka, B. Walesab, A. Wallner f aTRIUMF, 4004 Wesbrook Mall, Vancouver, B.C., Canada V6T 2A3 bMcMaster University, Hamilton, ON, Canada cSimon Fraser University, Burnaby, BC, Canada dInstitut für Kernphysik, Universität Münster, Münster, Germany eUniversity of Northern British Columbia, Prince George, BC, Canada f Institut für Isotopenforschung und Kernphysik, Universität Wien, Wien, Austria gUniversity of York, York, United Kingdom hRacah Institute of Physics, Hebrew University, Jerusalem, Israel
Covariant Lagrangian Methods of Relativistic Plasma Theory

We obtain a covariant decomposition of the motion of a relativistic charged particle into parallel motion and perpendicular gyration, and transform to guiding-center coordinates using Lie transforms. The natural guiding-center Poisson bracket structure and Hamiltonian are derived. The guiding-center equations of motion are presented to one order higher than the usual drifts, and the correction to the gyromomentum is given. We then allow for eikonal wave perturbations to the Lagrangian action. We develop a manifestly gauge-invariant and covariant oscillation-center theory to arbitrarily high order, and thereby derive the relativistic ponderomotive Hamiltonian. We sum the guiding-center action over a distribution and add the Maxwell action to obtain the total action of a guiding-center plasma. Upon variation, this yields self-consistent covariant relativistic kinetic and field equations; from these we identify the guiding-center current density and the guiding-center magnetization. Noether's theorem then yields covariant conservation laws for the momentum-energy and the angular momentum of a relativistic guiding-center plasma; from these we identify the guiding-center stress-energy tensor and the guiding-center spin angular momentum tensor. Repeating this calculation for guiding/oscillation centers, we find that variation yields self-consistent relativistic kinetic and field equations for the plasma in the wave field, including the wave dispersion relation; from these we identify the wave magnetization and susceptibility. Noether's theorem then yields conservation laws for the guiding-center plasma in the presence of a wave field, including the wave contribution to the stress-energy and spin angular momentum tensors.
Projective resolutions over Artin algebras with zero relations

The connection between categories of modules over a finite dimensional algebra over a field and categories of representations of a finite oriented graph satisfying a set of relations is well established. The finite oriented graph associated to such an algebra is called the quiver of the algebra. More recently, coverings of the quiver of an algebra are playing an increasingly important role in the theory of representations of the algebra. On the other hand, quivers whose underlying graphs are trees, form an important and intensively studied class of such graphs. We begin this paper by introducing a technique for computing the projective resolutions of simple representations of (possibly infinite) trees. This is done in Section 1. The section ends with an application to algebras whose quivers are trees. We show that the global dimension of such an algebra is bounded by one plus the number of relations. In the second section we use the technique developed in Section 1 to study zero relations algebras. Although the quiver of such an algebra need not, in general, be a tree, there is a (possibly infinite) tree with relations that covers the quiver. Representations of this covering satisfying the appropriate relations are closely related to representations of the quiver of the algebra satisfying the generating relations of the algebra. In particular, we get again an algorithm for computing projective resolutions of the simple modules of such an algebra. We apply this to show that if A is a zero relation algebra with N generating relations, then either the global dimension of A is infinite, or it is bounded by N 2 + 2. The paper ends with a result showing that if A is a zero relations algebra of infinite global dimension, then the projective resolutions of the simple A-modules of infinite projective dimension satisfy a certain type of periodicity. We assume the reader is familiar with the basic results connecting the category of modules over an algebra with the representations of a graph with relations [1], and also familiarity with [2] and [4] whose notation and terminology we use freely. Throughout this paper, k will denote a fixed field.
Dissipation-induced topological insulators: A no-go theorem and a recipe

Nonequilibrium conditions are traditionally seen as detrimental to the appearance of quantum-coherent many-body phenomena, and much effort is often devoted to their elimination. Recently this approach has changed: It has been realized that driven-dissipative dynamics could be used as a resource. By proper engineering of the reservoirs and their couplings to a system, one may drive the system towards desired quantum-correlated steady states, even in the absence of internal Hamiltonian dynamics. An intriguing category of equilibrium many-particle phases are those which are distinguished by topology rather than by symmetry. A natural question thus arises: which of these topological states can be achieved as the result of dissipative Lindblad-type (Markovian) evolution? Beside its fundamental importance, it may offer novel routes to the realization of topologically-nontrivial states in quantum simulators, especially ultracold atomic gases. Here I give a general answer for Gaussian states and quadratic Lindblad evolution, mostly concentrating on the example of 2D Chern insulator states. I prove a no-go theorem stating that a finite-range Lindbladian cannot induce finite-rate exponential decay towards a unique topological pure state above 1D. I construct a recipe for creating such state by exponentially-local dynamics, or a mixed state arbitrarily close to the desired pure one via finite-range dynamics. I also address the cold-atom realization, classification, and detection of these states. Extensions to other types of topological insulators and superconductors are also discussed.
Dependent T and existence of limit models

Abstract Does the class of linear orders have (one of the variants of) the so called (λ;κ)-limit model? It is necessarily unique, and naturally assuming some instances of G.C. H. we get some positive results. More generally, letting T be a complete first order theory and for simplicity assume G.C. H. , for regular λ >κ > |T| does T have (variants of) a (λ;κ)-limit models, except for stable T? For some, yes, the theory of dense linear order, for some, no. Moreover, for independent T we get negative results. We deal more with linear orders.
Stellar Parameters for Pulsating B-star Candidates in the Kepler Field

The field of asteroseismology has enjoyed a large swath of data coming from recent missions (e.g., CoRoT, Kepler, K2). This wealth of new data has allowed the field to expand beyond the previous limitation of a few extremely bright and evolved stars. Asteroseismology relies on accurate surface measurements for boundary conditions, but the predicted physical parameters in the Kepler Input Catalog (KIC) are unreliable for hot stars. We present stellar parameters of 25 candidate pulsating B-star candidates in the Kepler field. We use blue optical spectra to measure the projected rotational velocity ( ), effective temperature (Teff), and surface gravity ( ) using TLUSTY and Kurucz ATLAS9 model atmospheres. We find a large discrepancy between our spectroscopically derived parameters and those derived from photometry in the KIC and Gaia Data Release 2 (DR2). Using spectral energy distributions, we also measure the radii of these stars and later calculate the luminosities and masses. We find the extinctions (AV) of these stars to be consistent with zero, which is expected for stars of high Galactic latitude.
Towards observation-based gridded runoff estimates for Europe

Terrestrial water variables are the key to understanding ecosystem processes, feed back on weather and climate, and are a prerequisite for human activities. To provide context for local investigations and to better understand phenomena that only emerge at large spatial scales, reliable information on continental-scale freshwater dynamics is necessary. To date streamflow is among the best-observed variables of terrestrial water systems. However, observation networks have a limited station density and often incomplete temporal coverage, limiting investigations to locations and times with observations. This paper presents a methodology to estimate continental-scale runoff on a 0.5° spatial grid with monthly resolution. The methodology is based on statistical upscaling of observed streamflow from small catchments in Europe and exploits readily available gridded atmospheric forcing data combined with the capability of machine learning techniques. The resulting runoff estimates are validated against (1) runoff from small catchments that were not used for model training, (2) river discharge from nine continental-scale river basins and (3) independent estimates of long-term mean evapotranspiration at the pan-European scale. In addition it is shown that the produced gridded runoff compares on average better to observations than a multi-model ensemble of comprehensive land surface models (LSMs), making it an ideal candidate for model evaluation and model development. In particular, the presented machine learning approach may help determining which factors are most relevant for an efficient modelling of runoff at regional scales. Finally, the resulting data product is used to derive a comprehensive runoff climatology for Europe and its potential for drought monitoring is illustrated.
Threshold fluence and incubation during multi-pulse ultrafast laser ablation of quartz.

In this work, the incubation effect on the laser ablation threshold of quartz, after multi-shot irradiation with femtosecond pulses at 1030-nm-wavelength with different repetition rates, was investigated. A strong decrease of the multi-pulse ablation threshold with the number of pulses N was found due to incubation. Moreover, the influence of the repetition rate was negligible in the investigated frequency range which went from 0.06 to 200 kHz. A saturation of the threshold fluence value was observed at number of pulses N > 100 which has been found to be well fitted by an exponential incubation model. Using such model, we estimated the single-pulse ablation threshold value and the incubation coefficient for quartz, which were found equal to Fth,1 = 6.23 ± 0.23 J/cm2 and k = 0.058 ± 0.004.
Implementation of PjBL using unila’s moodle v-class and its interaction of students’ intrinsic factors

The Main Performance Indicators (IKU) of Higher Education, it has been a mandate the implementation of learning that aims to build and create collaborative and participatory classes. The purpose of this study was aims to analysis the linearity between the implementation of PjBL-based learning using Unila’s Moodle v-class with students' intrinsic factors in learning Animal Structure during online learning in realizing collaborative and participatory classes. This research is an experimental-research with posttest-only control design with the population in this study are students of biology education at the University of Lampung, amounting to 371 people. The sample was obtained using purposive sampling technique, as much as 124 students who had taken the Animal Structure course. The results showed that there was a significant difference (p<0.05) in student learning outcomes in the control and experimental classes. Nevertheless, there was no influence of intrinsic factors on PjBL results in both classes (p<0.05), all students had high intrinsic factors to take part in online learning is high, however the optimizing learning outcomes is not linear.
STUDI TENTANG PENGALAMAN KERJA, KOMITMEN KERJA, DUKUNGAN ORGANISASI DAN PENGARUHNYA TERHADAP KINERJA KARYAWAN

Organizational effectiveness is determined by the role of human resources. The quality of human resources does not only come from work ability but also comes from extra role behaviors such as work experience, organizational commitment, and perceived organizational support. Together with other variables, it is expected that all of these factors are carried out effectively in aggregate. Organizational citizenship behavior needs to be observed in order to obtain the expected work results of the organization. This study will examine work experience, organizational commitment, perceived organizational support, and its effect on employee performance. The purpose of this study was to analyze and determine the effect of work experience, organizational commitment, and perceived organizational support on employee performance. The number of samples carried out using the census technique were 72 employees. The analysis tool is multiple linear regression analysis, t test and F test assisted by SPSS 26 program. From the results of the study, it was found that work experience had a significant effect on employee performance. Organizational commitment has a significant effect on employee performance. Perception of organizational support has a significant effect on employee performance. Work experience, organizational commitment, and perceived organizational support have a significant simultaneous effect on employee performance Keywords : Work experience, organizational commitment, perceived organizational support, job performance
Towards a Neural Network Determination of Charged Pion Fragmentation Functions

I present a first determination of a set of collinear fragmentation functions of charged pions using the NNPDF methodology. The analysis is based on a wide set of single-inclusive electron-positron annihilation data, including recent measurements from $B$-factory experiments, and is performed up to next-to-next-to-leading order accuracy in perturbative quantum chromodynamics. I discuss the results of the fits, highlighting their quality in the description of the data, their stability upon the inclusion of higher-order corrections, and their comparison to other sets of fragmentation functions.
On the interactions of Skyrmions with domain walls

We study classical solutions of a particular version of the modified Skyrme model in (3+1) dimensions. The model possesses Skyrmion solutions as well as stable domain walls that connect different vacua of the theory. We show that there is an attractive interaction between Skyrmions and domain walls. Thus Skyrmions can be captured by the domain walls. We show also that, when the mass term is of a special type, the model possesses bound states of Skyrmions and of the domain wall. They look like deformed 2-dimensional Skyrmions captured by the wall. The field configurations of these solutions can interpreted as having come from the evolution of the 3-dimensional Skyrmions captured by the domain wall. For more conventional choices of the mass term of the model in the model the attraction between the Skyrmions and the wall leads to the capture of the Skyrmions which are then turned into topological waves which spread out on the wall. We have observed, numerically, such captures and the emission of the waves. We speculate that this observation may be useful in the explanation of the problem of baryogenesis and baryon-antibaryon asymmetry of the Universe. On leave from ITEP, Moscow, Russia and also from IKP, Jelich, Germany. email:kudryavt@heron.itep. ru e-mail:B.M.A.G. Piette@uk.ac. durham e-mail: W.J.Zakrzewski@uk.ac. durham
Application of Machine Learning in Predicting the Number of Bike Share Riders

This study aims to investigate the factors influencing the demand for bike sharing to identify the variables that significantly predict the need for shared bicycles. The study aims to create more in-depth knowledge about bike-sharing models to enhance the ideas on designing, developing, implementing and utilization of bike-sharing models. A multiple regression model was used to model the demand for 703 Capital Bikeshare’s shared bikes in the USA. The variations in the need for the bikes were assessed based on certain variables, such as the total number of registered and unregistered bikers and renters. Linear regression analyses were conducted to determine the factors that statistically and significantly predict the number of bikes rented. Machine learning classifiers: Random Forest, Decision Trees, Nearest Neighbor and XGBoost were used to determine the most important predictors of bike demand and the data analyzed in SPSS V25, R and PYTHON. Increase in demand for shared bikes was attributed to factors such as increase in temperature (p =0.000), days of the week except the first day of the week (p < 0.05), the month of September (p = 0.036), spring season ((p = 0.000), fall seasons (p = 0.001) and humidity (p = 0.000). A significant decrease in the demand for shared bikes was observed on the first day of the week (p = 0.218) and days with strong winds (p = 0. 113). More people are likely to rent shared bikes on hot days, in September, during spring and fall seasons, on humid days, and all days of the week except on the first day of the week.
Renormalization Group Approach to Non-equilibrium Green Functions in Correlated Impurity Systems

We present a new technique for calculating non– equilibrium Green functions for impurity systems with local interactions. We use an analogy to the calculation of response functions in the x–ray problem. The initial state and the ﬁnal state problems, which correspond to the situations before and after the disturbance (an electric or magnetic ﬁeld, for exam-ple) is suddenly switched on, are solved with the aid of Wilson’s momentum shell renormalization group. The method is illustrated by calculating the non–equilibrium dynamics of the ohmic two–state problem.
SPECIFICATION AND ESTIMATION OF NESTED LOGIT MODELS

The nested logit model is currently the preferred extension to the simple multinomial logit discrete choice model. The appeal of the nested logit model is its ability to accommodate differential degrees of interdependence between subsets of alternatives in a choice set. The received literature displays a frequent lack of attention to the very precise form that a nested logit model must take to ensure that the resulting model is invariant to normalisation of scale and is consistent with utility maximisation. Some recent papers have addressed aspects of this issue, but some important points remain ambiguous. When utility function parameters have different implicit scales, imposing equality restrictions on common attributes associated with different alternatives can distort these differences in scale. Model scale parameters are then 'forced' to take up the real differences that should be handled via the utility function parameters. With many variations in model specification appearing in the literature, comparisons become difficult, if not impossible, without clear statements of the precise form of the nested logit model. There are a number of approaches to achieving this, with some or all of them available as options in commercially available software packages. This note seeks to clarify the issue, and to establish the points of similarity and dissimilarity of the different formulations that appear in the literature. (a)