Miracle-dz/UniFAR-FTUs huggingface dataset:
Asymptotic behavior for textiles with loose contact

The paper is dedicated to the modeling of the elasticity problem for a textile structure. The textile is made of long and thin fibers, crossing each other in a periodic pattern, forming a woven canvas of a square domain. The textile is partially clamped. The fibers cannot penetrate each other but can slide with respect to each other in the in‐plane directions. The sliding is bounded by a contact function, which is chosen loose. The partial clamp and the loose contact lead to a domain partitioning, with different expected behaviors on each of the four subdomains. The homogenization is made via the periodic unfolding method, with an additional dimension reduction. The macroscopic limit problem results in a Leray–Lions problem with only macroconstraints in the plane.
Examining reputation from a communication perspective: A systematic review

The present study aims to systematically review communication reputation-focused research. After investigating several databases, a total of 366 peer-reviewed communication journal articles were selected. This study adopted quantitative content analysis to examine journals, as well as the progression, methodologies, media genres and platforms, geospatial distribution of discussed issues, and affiliations of first authors. The results revealed that communication reputation-focused articles have increased during the last decade. Most of the articles were published in public relations (PR) journals and adopted quantitative research methodologies. The most commonly used theories were related to communication, PR, and crisis communication theories. The articles discussed mostly social media and then digital media genres and platforms. The discussed regions and first-author affiliations were focused on the US.
Nonparametric estimation of multivariate quantiles

In many applications of hydrology, quantiles provide important insights in the statistical problems considered. In this paper, we focus on the estimation of multivariate quantiles based on copulas. We provide a nonparametric estimation procedure for a notion of multivariate quantiles, which has been used in a series of papers. These quantiles are based on particular level sets of copulas and admit the usual probabilistic interpretation that a p‐quantile comprises a probability mass p. We also explore the usefulness of a smoothed bootstrap in the estimation process. Our simulation results show that the nonparametric estimation procedure yields excellent results and that the smoothed bootstrap can be beneficially applied. The main purpose of our paper is to provide an easily applicable method for practitioners and applied researchers in domains such as hydrology and coastal engineering.
Flow structure in healthy and pathological left ventricles with natural and prosthetic mitral valves

In this paper, the structure and the dynamics of the flow in the left heart ventricle are studied for different pumping efficiencies and mitral valve types (natural, biological and mechanical prosthetic). The problem is investigated by direct numerical simulation of the Navier–Stokes equations, two-way coupled with a structural solver for the ventricle and mitral valve dynamics. The whole solver is preliminarily validated by comparisons with ad hoc experiments. It is found that the system works in a highly synergistic way and the left ventricular flow is heavily affected by the specific type of mitral valve, with effects that are more pronounced for ventricles with reduced pumping efficiency. When the ventricle ejection fraction (ratio of the ejected fluid volume to maximum ventricle volume over the cycle) is within the physiological range (50 %–70 %), regardless of the mitral valve geometry, the mitral jet sweeps the inner ventricle surface up to the apex, thus preventing undesired flow stagnation. In contrast, for pathological ejection fractions (⩽40 %), the flow disturbances introduced by the bileaflet mechanical valve reduce the penetration capability of the mitral jet and weaken the recirculation in the ventricular apex. Although in clinical practice the fatality rates in the five-year follow-ups for mechanical and biological mitral valve replacements are essentially the same, a breakdown of the deaths shows that the causes are very different for the two classes of prostheses and the present findings are consistent with the clinical data. This might have important clinical implications for the choice of prosthetic device in patients needing mitral valve replacement.
Double spin asymmetry measurement from SANE-HMS data at Jefferson Lab

In Hall C at the Thomas Jefferson National Laboratory, the Spin Asymmetries of the Nucleon Experiment (SANE, E07-003) measured the spin asymmetries of the proton, using a polarized electron beam and a polarized ammonia target. By rotation of superconducting magnet about the target, parallel and near-perpendicular double spin asymmetries were measured at beam energies of 4.7 and 5.9GeV . The spin structure functions g1 and g2 can be extracted from these asymmetries. The primary experiment used the Big Electron Telescope Array (BETA) which covered a large solid angle (about 200msr). Simultaneously, the High Momentum Spectrometer (HMS) detected electrons scattered. Double spin asymmetry from HMS data can improve the integral of g2 and the Q2 dependency of A1 and A2 at resonance region. We show the current progress of the analysis and preliminary spin asymmetries from HMS data.
Expression of Programmed Death Ligand-1 and Correlation with Clinicopathological Features and CD8 Infiltration in Breast Cancer

Background: Breast cancer (BC) is considered one of the most diversified types of tumors, characterized by a high mutational burden in the tumor milieu and a lack of immune cell makeup. The programmed death receptor-1 (PD -1)/programmed death ligand-1 (PD -L1) axis has been identified as a new target in the field of immunotherapy because, when activated, they worsen the future scenarios of the disease by helping tumor cells (TC) to escape immune surveillance. This study aims to investigate the expression of PD-L1 in BC tissues from Sudanese women and correlate the expression with clinicopathological features and the infiltration of CD8+T lymphocytes by immunohistochemistry (IHC). Methods: One hundred and fifty archived BC blocks were collected from the National Public Health Laboratory from January 2019 to August 2020. Data regarding age, TNM staging, grade, and hormonal status were considered. Tissue sections were examined using IHC to determine the expression of PD-L1 and CD8. Results: Among one hundred and fifty BC samples, 73 (48.7%) were TNBCs, and 77 (51.3%) were hormone-positive BCs. PDL-1 was significantly associated with BC subtypes, especially TNBCs (P = 0.001), a similar significant association was shown with CD8 infiltration (P = 0.006). None of the clinicopathological features was associated with PD-L1 expression. Conclusion: PD-L1 expression is strongly associated with TNBC’s and linked to CD8+ cells infiltration to the tumor milieu. Moreover, no correlation has been observed between the expression of PD-L1 and clinicopathological features in this study.
Arrays of annular cryogenic antennas with SINIS bolometers and cryogenic receivers for SubTHz observatories

Series and parallel arrays of annular antennas optimized for 350 GHz frequency band with SINIS (Superconductor Insulator Normal metal Insulator-Superconductor) bolometers and cryogenically cooled receivers for series of modern SubTHz observatories have been designed, fabricated and studied. The detectors are matched to incoming beam by an immersion sapphire lens. In the low background power case a voltage responsivity approaches 1.5*10 V/W corresponding to NEP=10 W/Hz. The current responsivity for parallel array is 4*10 A/W and shot noise limited intrinsic noise equivalent power is NEP=4*10 W/Hz. At the background radiation temperature level of 2.7 K the responsivity to variations of radiation temperature is over 75 V/K. The intrinsic time constant of the bolometer array is 0.1-0.2 s.
Food Compositions of the Indian Fox (Vulpes bengalensis) in the Desert Region of Rajasthan, India

The study on food compositions of the Indian fox (Vulpes bengalensis) was carried out in Balotra (Barmer) in hot desertic land. This threatened species listed with Schedule II of Wildlife (Protection) Act 1992. This opportunistic and omnivorous animal feeds upon small rodents, birds, eggs, snake, lizards and insects. It also feeds upon seed and seasonal fruits of Capparis decidua, Acacia tortilis, Acacia senegal, Aerva javanica, Prosopis cineraria, Prosopis juliflora, Salvadora persica, Ziziphus species, Cucumis melo, Citrullus lanatus, Cordia myxa, Punica granatum. Direct observation technique and scat analysis were used to recognize the diet compositions. In total, 202 scats were collected across the study sites during the year of 2015 to 2018. Scats are analyzed to categorize the prey species of the fox. Seasonal variations were found in fox’s diet. During winter season the fox mostly depended upon ber, aves and mammals while in summer it mostly likes Prosopis juliflora, Acacia tortilis, Prosopis cineraria, hair and bones of animals. During monsoon season it feeds on Ziziphus and small mammals.
Dynamic Stall Flow Structure and Forces on Symmetrical Airfoils at High Angles of Attack and Rotation Rates

This article describes a direct comparison between two symmetrical airfoils undergoing dynamic stall at high, unsteady reduced frequencies under otherwise identical conditions. Particle image velocimetry (PIV) was performed to distinguish the differences in flow structure between a NACA 0021 and a NACA 0012 airfoil undergoing dynamic stall. In addition, surface pressure measurements were performed to evaluate aerodynamic load and investigate the effect of laminar separation bubbles and vortex structures on the pressure fields surrounding the airfoils. Airfoil geometry is shown to have a significant effect on flow structure development and boundary layer separation, with separation occurring earlier for thinner airfoil sections undergoing constant pitch-rate motion. Inertial forces were identified to have a considerable impact on the overall force generation with increasing rotation rate. Force oscillation was observed to correlate with multiple vortex structures shedding at the trailing-edge during high rotation rates. The presence of laminar separation bubbles on the upper and lower surfaces was shown to dramatically influence the steady-state lift of both airfoils. Poststall characteristics are shown to be independent of airfoil geometry such that periodic vortex shedding was observed for all cases. However, the onset of deep stall is delayed with increased nondimensional pitch rate due to the delay in initial dynamic-stall vortex.
An integral equation for the second moment function of a geometric process and its numerical solution

In this article, an integral equation satisfied by the second moment function M2(t) of a geometric process is obtained. The numerical method based on the trapezoidal integration rule proposed by Tang and Lam for the geometric function M(t) is adapted to solve this integral equation. To illustrate the numerical method, the first interarrival time is assumed to be one of four common lifetime distributions, namely, exponential, gamma, Weibull, and lognormal. In addition to this method, a power series expansion is derived using the integral equation for the second moment function M2(t), when the first interarrival time has an exponential distribution.
An Extended Survey of Time-Inconsistency and Its Applications

In this study, we provide an extended literature review on preferences with present bias, more specifically with quasi-hyperbolic discounting which leads to time-inconsistent behavior. We review current studies that focus on the implications of time-inconsistent preferences on various well-known economic models and environments, including both models of individual decision making and models that have strategic interactions. We also discuss the part of the literature that focuses on measuring the discounting, whether it is exponential or hyperbolic. We also provide possible research directions which have not been fully explored yet in the literature.
Protective effect of Moringa on Salivary Glands of rats exposed to Electromagnetic Radiation Of Mobile Phone: A Histological study

The growing widespread usage of cell phones has resulted in potential negative impacts on human health due to their use near the location of salivary glands, which might be affected by non-ionizing radiofrequency radiation emitted from cell phones. The purpose of the study was to investigate the effect of electromagnetic waves from cell phones on the salivary glands of male albino rats. Albino rats ( n = 42) were divided into 6 groups ( n = 7 per group). Group I, the control group, received normal saline. In Group II, animals received 200 mg/kg body weight of ethanolic extract of Moringa leaves orally by gavage for a period of 10 weeks with no cell phone radiation. In Group III, animals were exposed to the data mode for 2 hours per day for 10 consecutive weeks. In Group IV, animals were exposed to calling mode for 2 hours per day for successive 10 weeks. In Group V, animals were subjected to data mode for 2 hours per day and given 200 mg/kg of Moringa extract. Group VI: animals exposed to calling mode for 2 hours/day and receiving 200 mg/kg of Moringa extract orally for a period of 10 weeks. Salivary gland samples were prepared for histological analysis after the experiment. In histological sections, the cells lining mucous acini, granular convoluted tubules, and striated ducts displayed symptoms of atrophy, vacuolar degeneration, necrosis, and detachment from the basement membrane edoema. These outcomes were examined using a light microscope. As a result of cell phone electromagnetic radiation, male albino rats' salivary glands suffered pathological alterations.
THE EFFECTS OF FOLIAR APPLICATION OF SOME SELECTED PHYTOHORMONES ON THE PROXIMATE, PHYTOCHEMICAL, AND MINERAL COMPOSITIONS OF ROSELLE (HIBISCUS SABDARIFFA L.) LEAVES

Recent research has shown that agricultural crops can be improved through the use of phytohormones. In this study, we tested the effects of coconut water (CW), Gibberellic Acid (GA3), Indole Acetic Acid (IAA), 6-Benzylaminopurine (BAP), and Naphthalene Acetic Acid (NAA) through foliar spray, on the seedlings of Hibiscus sabdariffa L. (Roselle) to understand the best treatment to improve nutritional quality. Roselle seedlings were raised in 30cm × 19cm polythene bags and arranged using a completely randomized design in a screened house for 4 months. The phytohormones were applied as treatments on seedlings both singly and combined in the range of 10-20 (%) for CW and 50-200 (mg/L) for the other treatments. Proximate, vitamin C and mineral elements were determined using standard analytical procedures, while phytochemical screening was carried out on plant extracts. The best nutritional composition was achieved using 200mg/L GA3 and 20% CW with crude protein, fibre, vitamin C, and flavonoid contents of 4.17, 1.36, 46.7, and 3.72 mg/100g respectively. Treatments with 20% CW also recorded the highest calcium and magnesium contents of 193.20 and 89.20 mg/100 g respectively. Generally, the single hormone treatments outperformed the combined hormone treatments. The exceptional performance of CW proved that CW has the potential to improve the nutritional content of agricultural crops and can also serve as a cheap and accessible bio-stimulant for agricultural crops such as H. sabdariffa.
Construction Stage Seismic Resilience Evaluation of a Continuous Girder Bridge with the Cast-in-Place Cantilever Construction Method

: To rapidly evaluate the seismic resilience of the bridges under construction, the construction stage seismic resilience evaluation method was proposed. Based on a case bridge of continuous girder with the cast-in-place cantilever construction method, the seismic resilience of bridges at different construction stages was researched and compared. The bridge model was established by utilizing the construction stage module in the Midas Civil finite element modelling software. The functional losses of the bridges at different construction stages were computed. The three dimensional functional surfaces of Function-Time-PGA (Peak Ground Acceleration) were drawn. The resilience indexes at different construction stages with different seismic PGAs were compared, the resilience indexes with and without consideration of the delay recovery period were compared and analysed. The research results show: 1) in the control period, the functional loss is directly proportional to the PGA, but the function and resilience indexes are inversely proportional to the PGA; 2) the seismic resilience indexes of bridges at different construction stages are vastly different; 3) the resilience indexes with and without consideration of the delay recovery period are different; for the case bridge with the delay recovery period to recovery period ratio of 20%, the difference of the resilience indexes with and without consideration of the delay recovery period can reach 17% when the seismic PGA is 1.0 g. This paper provides a new method to evaluate the seismic resilience of construction stages, and it can be used to provide suggestions for the seismic damage evaluation and post-seismic recovery scheme.
Factor structure, criterion-related validity, and longitudinal measurement invariance of the Regulation of Eating Behavior Scale (REBS): A bifactor S-1 exploratory structural equation modeling approach

The Regulation of Eating Behavior Scale (REBS) is one of the most popular measures to assess why people regulate their eating behaviors. However, few studies have examined its psychometric properties and problems with discriminant validity have been identified in previous research. The present study (re)examined the factor structure and criterion-related validity of the REBS using confirmatory factor analysis (CFA), exploratory structural equation modeling (ESEM), and bifactor (S-1) modeling in a sample of middle-aged women (N = 1447). We also examined longitudinal measurement invariance in a subsample of participants (n = 803) who responded to the survey 5 years later. The bifactor S-1 ESEM provided an excellent fit to the data and the factor loading pattern showed a well-defined global self-determination factor anchored in intrinsic motivation with decreasing contribution from the other items on the continuum. Relations between the global and specific motivation factors, food habits, binge eating, and BMI provided evidence of criterion-related validity. Longitudinal measurement invariance across time was also verified. Our results support the idea that the global factor represent a general quantity of self-determination rather than relative self-determination.
Investigating Competencies and Attitudes towards Online Education in Language Learning/Teaching after COVID-19

With the COVID-19 pandemic that has affected the whole world, the digitalization process has accelerated and the importance of stakeholders having online learning competencies in the learning-teaching process has increased. At the same time, the functioning of education and training globally has been affected by this process and courses in language and literature departments have had to be moved to digital platforms during the COVID-19 process. In this study, the competencies and attitudes of academics, teachers and students in the field of language towards online education after COVID-19 are examined with a comparative approach. In this context, with a cross-sectional approach, the study was conducted on lecturers, teachers and students working in the field of language in different cities of Kazakhstan. In the study, online education competencies and attitudes were analyzed with t-test according to gender variable and F-test according to status factor. According to the findings of the study, it was found that the participants' attitudes towards online education after COVID-19 were positive, while their competencies were at a medium level. Language field participants' attitudes towards online education did not differ according to gender and status factors. However, significant differences were found in terms of online education competence according to the gender and status of the participants.
Different Rationales of Coalition Formation and Incentives for Strategic Voting

Research on strategic voting has mainly focused on electoral system effects but largely neglected the impact of different rationales of coalition formation. Based on a formal model of rational party choice and a simulation study, we systematically investigate this impact and explore the implications. We show that the logic of the underlying coalition formation procedure clearly affects the degree to which the electorate is exposed to strategic incentives regarding the vote choice. The key implications are that sincere voting is more often in the voter’s best interest if parties are policy-seeking and if there is increased uncertainty during the stage of coalition formation. Furthermore, we explore how different types of coalition formation affect strategic incentives across the policy space.
Periodic magnetic curves in Berger spheres

It is an interesting question whether a given equation of motion has a periodic solution or not, and in the positive case to describe it. We investigate periodic magnetic curves in elliptic Sasakian space forms and we obtain a quantization principle for periodic magnetic flowlines on Berger spheres. We give a criterion for periodicity of magnetic curves on the unit sphere ${\mathbb{S}}^3$.
Measurements of the Ratio of W and Z Production and the W Boson Decay Width at CDF

Measurements of the Ratio of W and Z Production and the W Boson Decay Width at CDF by Katherine Ann Copic Chair: Myron K. Campbell We present a new method of measuring the ratio of W and Z production and decay (R) at the CDF experiment. We analyze 307 pb−1 of proton-antiproton collisions at the Fermilab Tevatron center-of-mass energy of 1.96 TeV. A single sample containing both W and Z boson candidates is selected by requiring at least one high-energy electron in an event with low hadronic activity. We estimate that less than one percent of our sample is made up of background events after a cut on the recoil energy. A maximum likelihood fit is performed on the missing transverse energy spectrum of the events to determine the relative rates of W and Z production in the common sample. This ratio is defined as: R = σW ·Br(W → `ν) σZ ·Br(Z → ``) = σW σZ Γ(W → `ν) Γ(W ) 1 Br(Z → ``) We have obtained the first result using this method for the electron channel. R = 10.55± 0.09(stat)± 0.12(syst) We then extract the Branching Ratio of W → `ν using the Branching Ratio of Z → `+`− measured at LEP and a theoretical value for the ratio of the cross sections. Br(W → `ν) = R · σZ σW Br(Z → `+`−) = 0.1054± 0.0016 We also obtain an indirect measurement of the W width of Γ W = 2148±32 MeV. This width gives us information about all the possible decays of the W boson. The W width also constrains the sum of the CKM elements involved in W decays. We find the following value for Vcs , the least constrained element: |Vcs | = 1.008± 0.029.