Miracle-dz/UniFAR-FTUs huggingface dataset:
Functional readiness and properties of the nervous system peculiarities of art specialties’ future teachers

Background and purpose. The future professional work of students of the Faculty of Arts is characterized by an insufficient level of physical activity of a dynamic nature in combination with a large static load and highly coordinated finger work. Representatives of these specialties have their own psychological characteristics. Purpose: to reveal the peculiarities of the properties of the nervous system and the functional potential of the cardiovascular system of students - future teachers of fine arts and music and, based on the obtained data, to develop recommendations for physical education and sports. Material and methods. Students of Pedagogical University took part in the study. The total number of students was 812. 24 of them were students of the Faculty of Arts. Future specialists in physical education and sports took part in the number of 25 people. 763 students were representatives of other faculties. Properties of the nervous system were determined using psychophysiological testing. During psychophysiological testing, the reaction time and the number of errors were determined for each test. The indicators of the orthostatic test were used as indicators of functional readiness. In the orthostatic test, the heart rate was measured in the lying position and in the standing position and the difference between these indicators. Statistical analysis involved comparing students of the Faculty of Arts with students of other faculties using parametric methods, since all samples corresponded to a normal distribution. Results. Future teachers of creative specialties have reliably the least mobility in combination with the highest stability of nervous processes in comparison with representatives of other pedagogical specialties. Reliable differences were found between the indicators of orthostatic reactions of students of the Faculty of Arts and the faculty where future sports coaches are trained. Orthostatic regulation is significantly better in students of the Faculty of Physical Education and Sports. Conclusions. It is necessary to adjust the program of physical education of students of creative specialties to increase the interest of students and to match physical exercises to the features of the nervous system of students of the Faculty of Arts. Future teachers of creative specialties can be recommended to engage in any kind of sport or motor activity, but the most suitable for them are exercises that require the development of endurance in combination with the inclusion of cognitive processes and concentration: walks with observation of nature and the city, exercises performed to music, exercises with a concentration on various natural images, etc.
Performance and emission characteristics of double biodiesel blends with diesel

Recent research on biodiesel focused on performance of single biodiesel and its blends with diesel. The present work aims to investigate the possibilities of the application of mixtures of two biodiesel and its blends with diesel as a fuel for diesel engines. The combinations of Pongamia pinnata biodiesel, Mustard oil biodiesel along with diesel (PMD) and combinations of Cotton seed biodiesel, Pongamia pinnata biodiesel along with diesel (CPD) are taken for the experimental analysis. Experiments are conducted using a single cylinder direct-injection diesel engine with different loads at rated 3000 rpm. The engine characteristics of the two sets of double biodiesel blends are compared. For the maximum load, the value of Specific Fuel consumption and thermal efficiency of CPD-1 blend (10:10:80) is close to the diesel values. CPD blends give better engine characteristics than PMD blends. The blends of CPD are suitable alternative fuel for diesel in stationary/agricultural diesel engines.
Experimental investigation of opposed jets discharging normally into a cross-stream

Detailed measurements are reported of mean-flow and turbulence characteristics of opposed jets discharging normally into a cross-flowing stream. They were obtained with pitch-to-diameter ratios of two and four, and for the limiting case of single opposed jets and for a separation of four jet diameters. Results are presented at downstream distances from two diameters from the plane of the jet centres. The results for the symmetrically arranged jets show that the jets retain their identity for a velocity ratio of unity and pitch-to-diameter ratios of four and infinity. With a velocity ratio of 1·8, the single opposed jets bifurcate about a vertical plane to form two symmetric cores of mixed jet fluid. With the pitch-to-diameter ratio of two, the individual jets retain their identity and, in contrast with the results for a pitch-to-diameter ratio of four, where each jet divides to form two cores, only one core is formed for each jet. In general, the turbulence characteristics are determined by the mean flow, which is controlled largely by pressure forces.
Recurrent Neuropsychiatric Systemic Lupus Erythematosus Presenting with Primary Central Nervous System Lymphoma

We report the case of a systemic lupus erythematosus (SLE) patient who was diagnosed with lupus cerebritis, vasculitis, Epstein-Barr virus infection, and consequently, lymphoma. The patient presented to the emergency department with dysarthria, dysphagia, left-sided hemiparesis, and hypesthesia. Initial brain magnetic resonance imaging (MRI) revealed multiple high signal intensities in the cortex and subcortex. Intravenous methylprednisolone and immunoglobulin administration did not improve her symptoms. However, intravenous rituximab improved the parenchymal and angiographic abnormalities. One month later, she developed another acute left-sided hypesthesia. Brain MRI revealed multiple rim-enhancing lesions with perilesional edema, different from the previous lesion. Intravenous methylprednisolone and cyclophosphamide did not improve her symptoms, and she was finally diagnosed with primary central nervous system lymphoma after brain biopsy. Neurological symptoms improved after chemotherapy. Since the incidence of primary central nervous lymphoma is relatively high in SLE patients, careful diagnosis and accurate treatment are needed.
Phylogenesis of the Functional 1-Aminocyclopropane-1-Carboxylate Oxidase of Fungi and Plants

The 1-aminocyclopropane-1-carboxylic acid (ACC) pathway that synthesizes ethylene is shared in seed plants, fungi and probably other organisms. However, the evolutionary relationship of the key enzyme ACC oxidase (ACO) in the pathway among organisms remains unknown. Herein, we cloned, expressed and characterized five ACOs from the straw mushroom (Volvariella volvacea) and the oyster mushroom (Pleurotus ostreatus): VvACO1-4 and PoACO. The five mushroom ACOs and the previously identified AbACO of the button mushroom contained all three conserved residues that bound to Fe(II) in plant ACOs. They also had variable residues that were conserved and bound to ascorbate and bicarbonate in plant ACOs and harbored only 1–2 of the five conserved ACO motifs in plant ACOs. Particularly, VvACO2 and AbACO had only one ACO motif 2. Additionally, VvACO4 shared 44.23% sequence identity with the cyanobacterium Hapalosiphon putative functional ACO. Phylogenetic analysis showed that the functional ACOs of monocotyledonous and dicotyledonous plants co-occurred in Type I, Type II and Type III, while putative functional gymnosperm ACOs also appeared in Type III. The putative functional bacterial ACO, functional fungi and slime mold ACOs were clustered in ancestral Type IV. These results indicate that ACO motif 2, ACC and Fe(II) are essential for ACO activity. The ACOs of the other organisms may come from the horizontal transfer of fungal ACOs, which were found ordinarily in basidiomycetes. It is mostly the first case for the horizontal gene transfers from fungi to seed plants. The horizontal transfer of ACOs from fungi to plants probably facilitates the fungal-plant symbioses, plant–land colonization and further evolution to form seeds.
SDSS-IV MaStar: Data-driven Parameter Derivation for the MaStar Stellar Library

The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Stellar Library (MaStar) is a large collection of high-quality empirical stellar spectra designed to cover all spectral types and ideal for use in the stellar population analysis of galaxies observed in the MaNGA survey. The library contains 59,266 spectra of 24,130 unique stars with spectral resolution R ∼ 1800 and covering a wavelength range of 3622–10,354 Å. In this work, we derive five physical parameters for each spectrum in the library: effective temperature (T eff), surface gravity ( logg ), metallicity ([Fe/H]), microturbulent velocity ( log(vmicro) ), and alpha-element abundance ([α/Fe]). These parameters are derived with a flexible data-driven algorithm that uses a neural network model. We train a neural network using the subset of 1675 MaStar targets that have also been observed in the Apache Point Observatory Galactic Evolution Experiment (APOGEE), adopting the independently-derived APOGEE Stellar Parameter and Chemical Abundance Pipeline parameters for this reference set. For the regions of parameter space not well represented by the APOGEE training set (7000 ≤ T ≤ 30,000 K), we supplement with theoretical model spectra. We present our derived parameters along with an analysis of the uncertainties and comparisons to other analyses from the literature.
Motivations for changing fertility plans and behaviours during the COVID-19 pandemic in Italy

ABSTRACT This study accounts for the heterogeneous consequences of the Covid-19 pandemic on fertility plans and behaviours, by focusing on the motivations for suspended pre-Covid fertility plans and on those for new fertility plans that arose during the pandemic. We rely on unique data collected with a repeated cross-sectional survey conducted in April/May 2021 and October/November 2021 on a sample of young Italians (aged 18–34). We estimate a set of multinomial and logit models to examine some correlates of fertility plans and behaviours. Then, we provide a more qualitative analysis of the reasons behind the resulting patterns of associations. Changes in fertility plans and behaviours from pre-COVID intentions clearly show that the economic recession burdens unequally individuals and their opportunities to cope with obstacles to both work and family involvement. At the same time, those who started to plan childbirth during the pandemic, frequently cite as important motivations the increased opportunities to enjoy the family life, the more balanced work and family involvement, the higher share of domestic tasks in the couple, and the improved relationship quality. Our results suggest the need for exploring also positive channels through which the Covid-19 crisis had provided opportunities for planning new births.
Intrinsic and extrinsic factors contributing to running-related lower limb injuries among adolescent runners

ABSTRACT The purpose of this study was to assess which combination of intrinsic and extrinsic factors contribute to running-related injury (RRI)among adolescent cross-country, track, and long-distance runners. We conducted a retrospective study at a hospital-affiliated sports injury prevention centre of 130 adolescent runners (F: 62.1%, M: 37.9%; cross-country: 34.1%, track: 56.1%, long-distance running: 9.8%) who underwent an Injury Prevention Evaluation between 2013 and 2021. The evaluation included a questionnaire on personal and training factors, and standardised physical assessments. We used a binomial logistic regression to assess the influence of demographics, lower extremity strength and alignment, training (running volume and intensity, weight training), and dietary factors on RRIs. There were 38 adolescent runners who reported RRIs (ankle sprains: N = 16, shin splints: N = 9, stress fractures: N = 13). Female sex (odds ratio [OR]: 4.58 [1.37, 15.37]; p = 0.01), reduced weekday hours of sleep (OR: 1.75 [1.04, 2.95]; p = 0.04), reduced hip abduction strength (OR: 1.02 [1.00, 1.04]; p = 0.05), and intention to lose weight to improve athletic performance (OR: 4.58 [1.00, 21.28]; p = 0.05) were associated with RRIs. These intrinsic and extrinsic risk factors may represent targets for injury prevention for adolescent runners.
Understanding plasma spraying

This article intends to summarize our actual knowledge in plasma spraying with an emphasis on the points where work is still in progress. It presents successively: the plasma torches with the resulting plasma jets and their interactions with the surrounding environment; the powder injection with the heat, momentum and mass transfers between particles and first plasma jets and then plasma plume; the particles flattening and solidification, forming splats which then layer to form the coating; the latest developments related to the production of plasma sprayed finely structured coatings.
Current transient spectroscopy for trapping analysis on Au-free AlGaN/GaN Schottky barrier diode

This paper presents a combined technique of high voltage off-state stress and current transient measurements to investigate the trapping/de-trapping characteristics of Au-free AlGaN/GaN Schottky barrier diodes. The device features a symmetric three-terminal structure with a central anode contact surrounded by two separate cathodes. Under the diode off-state stress conditions, the two separate cathodes were electrically shorted. The de-trapping dynamics was studied by monitoring the recovery of the two-dimensional electron gas (2DEG) current at different temperatures by applying 0.5 V at cathode 2 while grounding cathode 1. During the recovery, the anode contact acts as a sensor of changes in diode leakage current. This leakage variation was found to be mainly due to the barrier height variation. With this method, the energy level and capture cross section of different traps in the AlGaN/GaN Schottky barrier diode can be extracted. Furthermore, the physical location of different trapping phenomena is indic.
Calibration, Coherence, and Scoring Rules

Can there be good reasons for judging one set of probabilistic assertions more reliable than a second? There are many candidates for measuring "goodness" of probabilistic forecasts. Here, I focus on one such aspirant: calibration. Calibration requires an alignment of announced probabilities and observed relative frequency, e.g., 50 percent of forecasts made with the announced probability of.5 occur, 70 percent of forecasts made with probability.7 occur, etc. To summarize the conclusions: (i) Surveys designed to display calibration curves, from which a recalibration is to be calculated, are useless without due consideration for the interconnections between questions (forecasts) in the survey. (ii) Subject to feedback, calibration in the long run is otiose. It gives no ground for validating one coherent opinion over another as each coherent forecaster is (almost) sure of his own long-run calibration. (iii) Calibration in the short run is an inducement to hedge forecasts. A calibration score, in the short run, is improper. It gives the forecaster reason to feign violation of total evidence by enticing him to use the more predictable frequencies in a larger finite reference class than that directly relevant.
A Paradox concerning the Refined Similarity Hypothesis of Kolmogorov for Isotropic Turbulence

It is proved that the famous third-order structure function of the velocity in homogeneous isotropic turbulence derived by Kolmogorov implies the statistical interdependence of the difference and sum of the velocities at two points separated by a distance r. However, this is inconsistent with Kolmogorov’s hypothesis regarding the difference between such velocities, made in 1962, in the sense that it implies that the statistics of the non-dimensional prefactor of the velocity difference are not universal but, instead, depend on the velocity sum, at least. The only resolution of this apparent paradox that can maintain the spirit of Kolmogorov’s original hypothesis, which has been so important in the study of intermittency in turbulence, is given.
The structure of full polarized embeddings of symplectic and Hermitian dual polar spaces

Abstract Let Δ be a thick dual polar space of rank n ≥ 2 and let e be a full polarized embedding of Δ into a projective space ∑. For every point x of Δ and every i ∈ {0, …, n}, let T i (x) denote the subspace of ∑ generated by all points e(y) with d(x, y) ≤ i. We show that T i (x) does not contain points e(z) with d(x, z) ≥ i + 1. We also show that there exists a well-defined map ei x from the set of (i – 1)-dimensional subspaces of the residue Res Δ(x) of Δ at the point x (which is a projective space of dimension n – 1) to the set of points of the quotient space T i (x)/T i –1 (x). In this paper we study the structure of the maps ei x and the subspaces Ti(x) for some particular full polarized embeddings of the symplectic and the Hermitian dual polar spaces. Our investigations allow us to answer some questions asked in the literature.
Theory of direct tunneling current in metal–oxide–semiconductor structures

The physical bases of the most commonly used methods for the one-dimensional calculation of direct-tunneling current in metal–oxide–semiconductor (MOS) structures (i.e., Bardeen’s approach, the resonant transfer matrix method, and transparency-based approximations) are discussed. Each of them is presented in detail, underlining in a simple way the basic principles. In particular, an original derivation for Bardeen’s approach is proposed. A comparison of the different methods is then carried out for the simple case of two square quantum wells, where analytical solutions can be given, and for actual MOS structures, taking into account quantization effects. It is shown that all these methods, despite the very different formalisms, are based on similar physical approaches and provide very close results.
Possible Impact of Vitamin D Status and Supplementation on SARS-CoV-2 Infection Risk and COVID-19 Symptoms in a Cohort of Patients with Inflammatory Bowel Disease

The coronavirus disease (COVID-19) pandemic represents a global health challenge, particularly considering concomitant diseases. Patients with inflammatory bowel diseases (IBD) can be considered a population at risk. On the other hand, the risk of developing IBD and COVID-19 have both been described as modulated by vitamin D (VD) levels. In this work, a cohort of 106 adult patients affected by IBD was prospectively enrolled, during the second wave of the pandemic in Italy. In these patients, VD plasma levels, demographic, and clinical characteristics were tested for a correlation/an association with the risk of infection with SARS-CoV-2 in the study period (anti-spike IgG positivity) and the severity of COVID-19 symptoms. By multivariate logistic regression analysis, VD supplementation (Odds Ratio; OR 0.116, p = 0.002), therapy with monoclonal antibodies (OR 0.227, p = 0.007), and the use of mesalazine (OR 2.968, p = 0.046) were found to be independent predictors of SARS-CoV-2 positivity. Moreover, hypertension was associated with severe disease (p = 0.019), while a VD level higher than 30 ng/mL (p = 0.031, OR 0.078) was associated with asymptomatic infection. No interplay between IBD activity and COVID-19 risk of infection or symptoms was observed. These results confirm the importance of VD levels in defining the risk of COVID-19 and give encouraging data about the safety of maintaining immunomodulatory treatments for IBD during the COVID-19 pandemic.
Best Approximation by Normal and Conormal Sets

The aim of the present paper is to develop a theory of best approximation by elements of so-called normal sets and their complements-conormal sets-in the non-negative orthant R^I"+ of a finite-dimensional coordinate space R^I endowed with the max-norm. A normal (respectively, conormal) set arises as the set of all solutions of a system of inequalities f"@a(x)= =0 (@a@? A), x@? R^I"+), where f"@a is an increasing function and A is an arbitrary set of indices. We consider these sets as analogues (in a certain sense) of convex sets, and we use the so-called min-type functions as analogues of linear functions. We show that many results on best approximation by convex and reverse convex sets and corresponding separation theory (but not all of them) have analogues in the case under consideration. At the same time there are no convex analogues for many results related to best approximation by normal sets.
Perceived Social Support and Engagement in First-Year Students: The Mediating Role of Belonging during COVID-19

Academic engagement and the conditions that favor it have become relevant in recent decades due to their relationship with academic performance, well-being, and university permanence. Variables such as perceived social support and sense of belonging are relevant aspects of social integration to promote engagement. Evidence shows both variables predicting engagement. In addition, the available evidence suggests this possible mediating role, which requires further analysis in freshmen in the emergency teaching context due to the COVID-19. The present study aims to evaluate the mediating role of sense of belonging in the relationship between perceived social support and engagement in university students. Results showed significant predictive relationships between social integration variables and engagement and showed the mediating role of sense of belonging in the relation between perceived social support and the three types of engagement. These results suggest the relevance for degree programs to consider these social integration variables as a key element for university freshmen.
Self-regulated Learning Among Undergraduate College Students with Parental Divorce

Background: Parental divorce can cause psychological problem and disturbances in communication that have an impact on the student learning process. Thus, good self-regulation in the learning process is needed to keep students focused on achieving learning goals.Purpose: This study aims to identity the self-regulation of undergraduate college students who experienced parental divorce.Methods: Quantitative descriptive study was conducted in this study by using accidental sampling technique with a response rate of 34.65% (n=113) via online survey. Data was collected using the Self-Regulated in Online Learning Questionnaire (SOL-Q) and analyzed using univariate descriptive analysis.Results: The results showed that 52.2% of students with divorced parents had high self-regulation in learning and 47.8% of students had low self-regulation in learning. On the other hand, some of the students with parental divorce issues were in the low category on several aspects such as metacognitive skills (51.3%), persistence (52.2%), environmental management (49.6%), and seeking help (47.8%); and more than one third of respondents (38.1%) are also in the low category on the time management component.Conclusion: This study shows that respondents with high and low self-regulated learning are almost in equal proportion. The nursing profession can contribute to various collaborative efforts to improve student self-regulation in learning to improve students' psychological well-being and optimize their learning outcomes while studying in college.
THE MORPHOLOGY OF REVERSED SPECTRAL LINE BISECTORS

Spectral-line asymmetries of stars on the hot side of the granulation boundary in the H-R diagram are contrasted with those on the cool side by comparing the line bisectors of 41 Cyg to those of Alpha CMi. The reversed line bisectors for stars on the hot side of the boundary are interpreted to indicate large upward-stream velocities, about -10 to -20 km/s, over a small time-averaged fraction of the surface, equal to about 10 percent. Scaling properties of the bisectors imply no differential velocities within the up-flow.