Miracle-dz/UniFAR-FTUs huggingface dataset:
Nash equilibria for noncooperative n-person games in normal form

This paper concentrates on the problem of the existence of $\varepsilon $-equilibrium points in the Nash sense for noncooperative n-person games in normal form. Firstly, a survey of known $\varepsilon $-equilibrium.point theorems and proof techniques is given. Then various new $\varepsilon $-equilibrium point theorems are derived, in which one of the players has a big strategy space and where nonbounded, payoff functions are allowed. To prove these theorems, results of Arzela–Ascoli are extended.
A Community-Driven Deep Collaborative Approach for Recommender Systems

Recommender systems (RS) are increasingly leveraging the power of graphs to enhance accuracy. However, we stipulate that existing methods don’t take into consideration the inherent behavior of communities and the interaction between all the sub-groups of the network. In this work, we develop a Deep Graph-based Collaborative Filtering recommender system (DGCF), which incorporates the concept of community profiling and leverages the power of Graph Neural Networks. DGCF utilizes multiple graphs to exploit all types of information from the different user interactions. It extracts the overlapping communities from the homophily user-user graph and also integrates the high-order information from the user-item bipartite graph. We conduct experiments and evaluate the DGCF on the MovieLens datasets (ML-100K and ML-1M), and Douban dataset. Our experiments reveal significant improvements over a number of the latest deep learning models for recommender systems. Results also support that DGCF has the potential to render better recommendations as it extracts deep relationships using the community structure.
Effect of nonfiber carbohydrate and crude protein levels in the formula of feed on in vitro rumen fermentation characteristics and growth performance of weaned Hanwoo calves

Recommended Citation AHN, JUN SANG and PARK, BYUNG KI (2022) "Effect of nonfiber carbohydrate and crude protein levels in the formula of feed on in vitro rumen fermentation characteristics and growth performance of weaned Hanwoo calves," Turkish Journal of Veterinary & Animal Sciences: Vol. 46: No. 6, Article 2. https://doi.org/ 10.55730/1300-0128.4253 Available at: https://journals.tubitak. gov.tr/veterinary/vol46/iss6/2
Chandra Observation of Cir X-1 near the Periastron Passage: Evidence for an X-Ray Jet?

We present the results of a 25 ks long Chandra observation of the peculiar source Cir X-1 near the periastron passage. We report precise X-ray coordinates of the source, which were compatible with the optical and radio counterpart coordinates. We focus on the study of the detected emission features using the High Energy Transmission Grating Spectrometer on board the Chandra satellite. We detect emission lines associated with Mg XII, Si XIII, Si XIV, S XV, S XVI, Ar XVII, Ar XVIII, Ca XIX, Ca XX, Fe XXV, and Fe XXVI, showing an average redshift of 470 km s−1. The most intense emission features can be fitted with two lines; this is more evident for the 6.6 keV emission feature, which shows a double-peaked structure. We propose that the redshifted and blueshifted lines of Mg XII, Si XIV, S XVI, and Fe XXV can be interpreted as emission from a blue and red beam of an X-ray jet, finding that the angle between the line of sight and the jet direction is 92° and the jet velocity is 0.08c.
An automatic measuring method and system using a light curtain for the thread profile of a ballscrew

An automatic non-contact measuring system for the thread profile of a ballscrew was developed and integrated using a light curtain, a high-accuracy linear encoder and a motion platform for the measuring stand. Firstly, data points from the thread profile of a ballscrew were collected by the measuring system and data partitioning was performed. Then, the proposed method was used to calculate the most important geometric errors of the thread profile, such as effective diameter, thread pitch, ball track runout and ball track cross-section error. Finally, the proposed system and method was verified for its good performance with acceptable accuracy and reliability. Compared with original measuring methods, the non-contact optical measuring system was capable of measuring most common features of the ballscrew with required accuracy, and was not limited to size and length of the ballscrew.
A Strict Description of the Electron Kinetics in Rare Gases Near Absorbing Boundaries

A strict theoretical treatment of the electron kinetics in spatially disturbed steady state plasma near absorbing boundary is presented. The presence of an absorbing boundary is accompanied by a large electron density gradient that leads to axial dependence of the electron density, electron mobility and diffusion coefficient and to strong distortion of the electron energy distribution function. An efficient method for solving axially inhomogeneos electron Boltzmann equation under the action of a steady state electric field has been used. Both elastic and conservative inelastic collisions of the electrons with gas atoms as well as elastic electron-electron collisions are taken into account. A comparison with experimental results available is reported. Investigations are performed for rare gases and a comparison of several macroscopic quantities (electron density, mean energy, electron mobility and diffusion coefficient) is made and discussed. The applicability of the two-term Legengre polynomial expansion has been critically evaluated and discussed.
Analyzing the data from beverage companies to evaluate the validity of the Fama-French three-factor model

The Fama-Fench 3-factor model (FF3) is one of the most commonly used models for valuing companies. It is curious to see whether this model can reasonably capture the changes in the treacherous stock market and accurately predict the expected returns of a company in practice. In this article, machine learning is adopted to analyze data from the past five years in terms of the 10-year t-bill return as the risk free rate and the S&P 500 rate of return as the market rate of return to compare and analyses the rate of return of Nestle, Danone, Unilever, Coca-Cola and PepsiCo over the past five years. In the comparative analysis, this essay randomly selected the rate of return for 80% of the days in the past five years as the training set and used the rate of return for the remaining 20% of the days as the test set. Besides, this study uses regression analysis to obtain a theoretical model of FF3, which is then brought to the test set data for testing. In this article, the null hypothesis is that the error is equal to 0 and the alternative hypothesis is that the error is not equal to 0. According to the analysis, hypothesis validation is adopted to check the accuracy of FF3 by analyzing the results of the hypothesis test and using the FF3 derived from the training set to predict whether the error between the resulting data and the actual data is 0.
A comparison of two drop-out weighting schemes in the analysis of clustered data with categorical and continuous responses

A model previously proposed for analyzing clustered data with a bivariate discrete and continuous response jointly is extended to a model that jointly analyzes categorical and continuous responses. As well, two previously proposed weighting schemes for generalized estimating equations that compensate for drop-out effects are investigated for unbiasedness and efficiency revealing conditions under which one scheme can be less efficient and more susceptible to influential observations. The data set used for demonstration is longitudinal, containing information on nests of young bass gathered over the life of the nest.
STTM: an efficient approach to estimating news impact on stock movement direction

Open text data, such as financial news, are thought to be able to affect or to describe stock market behavior, however, there are no widely accepted algorithms for extracting the relationship between stock quotes time series and fast-growing textual representation of economic information. The field remains challenging and understudied. In particular, topic modeling as a powerful tool for interpretable dimensionality reduction has been hardly ever used for such tasks. We present a topic modeling framework for assessing the relationship between financial news stream and stock prices in order to maximize trader’s gain. To do so, we use a dataset of economic news sections of three Russian national media sources (Kommersant, Vedomosti, and RIA Novosti) containing 197,678 economic articles. They are used to predict 39 time series of the most liquid Russian stocks collected over eight years, from 2013 to 2021. Our approach shows the ability to detect significant return-predictive signals and outperforms 26 existing models in terms of Sharpe ratio and annual return of simple long strategy. In particular, it shows a significant Granger causal relationship for more than 70% of portfolio stocks. Furthermore, the approach produces highly interpretable results, requires no domain-specific dictionaries, and, unlike most existing industrial solutions, can be calibrated for individual time series. This makes it directly usable for trading strategies and analytical tasks. Finally, since topic modeling shows its efficiency for most European languages, our approach is expected to be transferrable to European stock markets as well.
Dendrochronological investigations reveal declining growth rate of Pinus roxburghii Sarg. populations from 1840 to 2017 in Kashmir Himalayas

Pinus roxburghii Sarg. is a keystone gymnosperm tree of Western Himalayan subtropical forests of Kashmir region. It is a good choice for dendrochronological investigations as its core samples have potential to reflect changes in climatic pattern its growth rings. The present dendrochronological study was aimed to investigate the trends in growth as well as structural attributes of P. roxburghii . A cross dated tree-ring chronology for 177 years period was developed from 1840 to 2017. The average growth rate of P. roxburghii was calculated as 0.89 ± 0.02 year/cm. Tree Ring Width index revealed that P. roxburghii growth rate decreased from 1840-1880 AD whereas the growth rate significantly increased during the period 1890-1920 followed by a gradual decline afterwards till 2017. A total of 101 years were marked with slow growth whereas higher growth was found in 75 years. The decline in growth rate is synchronized with the disturbance stimuli and socioeconomic transformations in the study area during the last century. The average DBH was recorded to be 87.87 cm, ranging from a minimum of 70.5 cm to a maximum of 108.5 cm whereas the average core length was recorded as 21.2 cm. The average age of P. roxburghii trees was calculated to be 123.06 years with the oldest tree specimen of 245 years. The decline in the Pinus growth rate appears to be synchronized with climate change induced increasing temperatures during the last century. It is recommended that the tree rings chronologies should be constructed for further keystone taxa to reconstruct past climatic history in this region.
African American Small Consulting Business Sustaining Strategies

More than 80% of small consulting businesses fail within the first 5 years of operation. Small consulting company owners are concerned about failing within the first five years because they lack innovative strategies. Grounded in the resource-based view theory, this qualitative multiple case study aimed to explore strategies African American consulting company owners use for longevity beyond 5 years. The participants comprised African American owners of three consulting businesses located in the northeast region of the United States who successfully sustained their business beyond 5 years. Data collection included semistructured interviews with consulting company owners and reviewing company documents. A key recommendation includes conducting feasibility screening and designing and using a strategy canvas to identify opportunities.
Observation of energetic protons trapped in laboratory magnetic-tower jets

Preliminary results of the self-emission of charged particles from magnetically driven plasma jets has been investigated. The jets were launched and driven by a toroidal magnetic field generated by introducing a ∼ 1.4 MA, 250 ns electrical current pulse from the MAGPIE generator into a radial wire array. This configuration has shown to reproduce some aspects of the astrophysical magnetic-tower jet launching model, in which a jet is collimated by a toroidal magnetic field inside a magnetic cavity. The emission of ions and protons from the plasma was recorded onto Columbia Resin 39 plates using time-integrated pinhole cameras. In addition a fly-eye camera, an array of 25–496 cylindrical apertures allowed estimating the location of the ion emitting source. The results show the ion emission comes from both the jet and its surrounding magnetic cavity, with the emission extending to a height of at least ∼ 9 cm from the initial position of the wires. The emission of ions is consistent with the dynamics of the jet obtained from time-resolved imaging diagnostics, i.e. optical laser probing and self-emission of the plasma in the extreme ultra-violet. These preliminary results suggest the ions are trapped inside the cavity due to the strong toroidal magnetic field which drives the jet. In addition these studies provide first estimates of the energy and fluence of protons for future laser-driven proton probing diagnostics aimed at measuring the magnetic field in these experiments.
Linking Clustering Properties and the Evolution of Low Surface Brightness Galaxies

Abstract The reasons for the presence of two branches of galaxy evolution, one producing high surface brightness disks and one creating low surface brightness disks, is still unknown. Possible are the imprint of the properties of the dark matter halo, as well as evolutionary effects. In this paper we present an analysis of the clustering properties of LSB and HSB galaxies using the Sloan Digital Sky Survey. We show that LSB galaxies reside in regions of lower galaxy density than HSB galaxies on all scales between 0.8 and 8 Mpc, from scales of galaxy pairs to filaments of the Large Scale Structure. This implies a probable scenario of LSB galaxies preferentially forming as a result of local peaks in the large-scale valleys of the primordial density distribution.
Variability, heritability and trait association studies for bulb and antioxidant traits in onion (Allium cepa) varieties

Onion (Allium cepa L.) is one of the most important vegetable having year round demand and consumed fresh, cooked or processed. It occupies maximum area under vegetables in India. The consumption of onion has been associated with many health benefits. The genetic improvement work mainly focused on improving yield and there has been little effort on improving quality traits. Therefore, information on variability, heritability and trait association of phytochemicals content, antioxidant activity and bulb traits are lacking. The present study was conducted to bridge the gap and generate information on these aspects. A total of eight quality traits and four bulb traits were analyzed in 22 onion genotypes of five different skin colour. The genotypes were procured from diverse geographic region. The total soluble solids content (TSS), pungency, total phenol, flavonoids content, and antioxidant activities as estimated through CUPRAC and FRAP in the onion varieties varied from 10.13-16.65 Â°Brix, 4.67-12.28 Î¼mol Pyruvic acid/g FW, 740.67-1145.33 Î¼g Gallic acid equivalent/ml, 31.67 - 465.0 Î¼g Quercetin equivalent/ml, 2.23 - 5.14 Î¼mol Trolox/g and 1.60-4.63 Î¼mole Trolox/g, respectively. There was less difference between phenotypic and genotypic components of variance for pungency, total phenols, antioxidant activity and juice recovery, suggesting greater role of genotype in the expression of quality traits and better scope of improvement for these traits. The high heritability estimates (>75%) for bulb diameter, total phenols, flavonoids, pungency and antioxidant activity, and higher value of genotypic correlation co-efficient over phenotypic co-efficient supports greater role of genotype in the expression of quality traits. The high estimate of heritability and comparatively, low estimate of genetic advance and genetic gain suggest the role of both additive and non-additive gene action. Thus hybridization and selection would be the best strategy to improve quality traits in Indian onion genotypes. Future breeding attempt to develop onion varieties with higher health benefits should focus on medium sized varieties without compromising on yield.
New Perspectives on the Adverse Effects of NSAIDs in Cancer Pain: An Italian Delphi Study from the Rational Use of Analgesics (RUA) Group

Non-steroidal anti-inflammatory drugs (NSAIDs) are among the most frequently prescribed drugs for cancer pain. We used the Delphi methodology to evaluate the opinions of clinicians on NSAIDs and paracetamol, with a specific focus on their safety profile. Consensus was reached on seven statements. A high level of consensus was reached regarding the use of NSAIDs and gastrointestinal, cardiovascular, and renal risk in patients taking low-dose aspirin and assessment of liver function during long-term treatment with paracetamol. Consensus was also reached that assessment and monitoring of eGFR are important in the elderly being administered NSAIDs. It was further agreed that NSAIDs can often play a key role in association with opioids in the treatment of cancer pain and that paracetamol is the analgesic of first choice for patients with mild chronic pain. When NSAIDs are administered in combination with steroids, it was agreed that the risk of gastrointestinal damage is increased since steroids delay the healing of ulcers and that paracetamol can be used during pregnancy and does not affect the health of the fetus. This Delphi study highlights that there is poor agreement on how these drugs are routinely prescribed. However, a consensus was reached for seven key statements and may represent a valid contribution to daily practice.
THE ULTRA-HIGH-RESOLUTION FACILITY AT THE ANGLO-AUSTRALIAN TELESCOPE

The Ultra-High-Resolution Facility (UHRF) has been commissioned at the coude focus of the Anglo-Australian Telescope (AAT), and provides a resolving power of R≈106. This is the highest spectral resolution ever obtained by an optical astronomical spectrograph, and is intended mainly for astrophysical studies of cool interstellar clouds. This paper describes the development of this ambitious project, which includes diffraction-limited optical components, very tight specification for the optical configuration, and a new type of image slicer which allows ultra-high-resolution work towards faint stars. Astrophysical results from the first observing runs are presented to demonstrate the performance in terms of both resolution and throughput
Association between ultra-processed foods consumption and risk of non-alcoholic fatty liver disease: a population-based analysis of NHANES 2011–2018

Abstract An increasing number of studies have evaluated the association between ultra-processed foods (UPF) consumption and metabolic disorders. However, the association between UPF intake and non-alcoholic fatty liver disease (NAFLD) remains unclear. In this study, we analysed data from 6545 participants who were recruited in National Health and Nutrition Examination Surveys 2011–2018. UPF were defined in light of the NOVA food classification system and divided into quartiles based on its proportion of total weight intake. Complex logistic regression models were used to assess the association between UPF and NAFLD. Mediation analyses were conducted to reveal underlying mediators. We found that NAFLD patients consumed more UPF than controls (925·92 ± 18·08 v. 812·70 ± 14·32 g/d, P < 0·001). Dietary intake of UPF (% weight) was negatively related to the Healthy Eating Index-2015 score (Spearman r = −0·32, P < 0·001). In the multivariable model, the highest quartile compared with the lowest, the OR (95 % CI) were 1·83 (1·33, 2·53) for NAFLD (OR per 10 % increment: 1·15; 95 % CI: 1·09, 1·22; P for trend < 0·001) and 1·52 (1·12, 2·07) for insulin resistance (OR per 10 % increment: 1·11; 95 % CI: 1·05, 1·18; P for trend = 0·002). Mediation analyses revealed that poor diet quality, high saturated fat and refined grain intake partly mediated the association between UPF and NAFLD. In conclusion, high UPF intake was associated with an increased risk of NAFLD in US adults. Further prospective studies are needed to verify these findings.
Prediction of pilocarpine production from soil attributes and the nutritional status of Pilocarpus microphyllus

Abstract Jaborandi (Pilocarpus microphyllus), an endemic species of the Brazilian flora threatened with extinction, is the only natural source of pilocarpine, an alkaloid widely used in the pharmaceutical industry. This compound is extracted from the leaf tissue and may be affected by edaphic and nutritional variations. The aim of this study was to correlate soil chemical parameters and leaf nutrient contents with pilocarpine production in Pilocarpus microphyllus plants collected from areas of the Carajás National Forest. In samples collected from 83 plants, pilocarpine, leaf nutrients (N, P, K, S, Mg, Ca, B, Zn, Cu, Fe, and Mn), and soil chemical attributes (P, K, S, Mg, Ca, B, Zn, Cu, Fe, Mn, organic matter, pH, and Al) were evaluated. The mean values of pilocarpine varied between 0.4% and 2.2% of the leaf dry matter, which are rare. In general, the soils presented low nutrient availability, marked acidity, and very high Fe and Mn values. In the leaves, low concentrations of N, P, and K and high leaf concentrations of Fe (2239.13 mg kg−1) and Mn (2095.46 mg kg−1) were observed, which suggested that P. microphyllus is a metal accumulator species. Through multivariate analysis, the model that best predicted pilocarpine production was composed of leaf N, leaf Mg, soil Fe (positive predictors), soil S, and leaf P (negative predictors). The nutritional management for large-scale cultivation of P. microphyllus should be focused mainly on the amounts of N, Fe, and Mg.
The dynamics of the coil-stretch transition for long, flexible polymers in planar mixed flows

We describe the dynamics of an isolated, flexible polymer molecule in an extension-dominated planar mixed flow. We find that as vorticity is added to planar extensional flow, the conformational fluctuations of the molecule increase and the coil-stretch hysteresis [e.g., Schroeder et al., Macromolecules 37(24), 9242 (2004); Science 301, 1515 (2003)] vanishes for a fixed Deborah number and Hencky strain. We present Brownian dynamics simulation results and a kinetic theory, valid in the hysteretic regime, which allows us to determine both the rate at which a coiled molecule unravels and the rate at which a stretched molecule relaxes to a coil when subjected to planar mixed flow. We demonstrate that for all values of the added vorticity, the coil-stretch/stretch-coil transition rates increase with increasing vorticity as a consequence of the conformational fluctuations, which can be explained by the molecule sampling a shear flow through Brownian fluctuations off the extensional axis. We demonstrate that if R.