Miracle-dz/UniFAR-FTUs huggingface dataset:
Signaling in an English Auction: Ex ante versus Interim Analysis

This paper studies and compares some commonly observed selling mechanisms for a seller of an item who has private information that is payoffrelevant to prospective buyers but where the seller is unable to credibly reveal her information to the buyers at no cost. We first study an English auction format with two different reserve price regimes, and a posted-price mechanism to compare the signaling games from the ex ante point of view. We show in this environment posted price is dominated by an ascending auction with a disclosed reserve price. In the second part of the paper we introduce a designed problem with an informed seller, where the seller observes her signal before she chooses the mechanism. We restrict our attention to an English auction with two reserve price regimes. Our analysis show at any equilibria all types of the sellers chooses the same mechanism after observing their signal. Thus signaling through a reserve price regime is not possible in this environment.
Control of a purely elastic symmetry-breaking flow instability in cross-slot geometries

The cross-slot stagnation point flow is one of the benchmark problems in non-Newtonian fluid mechanics as it allows large strains to develop and can therefore be used for extensional rheometry measurements or, once instability arises, as a mixing device. In such a flow, beyond a critical value for which the ratio of elastic force to viscous force is high enough, elasticity can break symmetry even in the absence of significant inertial forces (i.e. creeping flow), which is an unwanted phenomenon if the device is to be used as a rheometer but beneficial from a mixing perspective. In this work, a passive control mechanism is introduced to the cross-slot by adding a cylinder at the geometric centre to replace the ‘free’ stagnation point with ‘pinned’ stagnation points at the surface of the cylinder. In the current modified geometry, effects of the blockage ratio (the ratio of the diameter of the cylinder to the width of the channel), the Weissenberg number (the ratio of elastic forces to viscous forces) and extensibility parameters ( $\unicode[STIX]{x1D6FC}$ and $L^{2}$ ) are investigated in two-dimensional numerical simulations using both the simplified Phan-Thien and Tanner and finitely extensible nonlinear elastic models. It is shown that the blockage ratio for fixed solvent-to-total-viscosity ratio has a stabilizing effect on the associated symmetry-breaking instability. The resulting data show that the suggested modification, although significantly changing the flow distribution in the region near the stagnation point, does not change the nature of the symmetry-breaking instability or, for low blockage ratio, the critical condition for onset. Using both numerical and physical experiments coupled with a supporting theoretical analysis, we conclude that this instability cannot therefore be solely related to the extensional flow near the stagnation point but it is more likely related to streamline curvature and the high deformation rates towards the corners, i.e. a classic ‘curved streamlines’ purely elastic instability. Our work also suggests that the proposed geometric modification can be an effective approach for enabling higher flow rates to be achieved whilst retaining steady symmetric flow.
Genome-wide association studies ( GWAS ) identifies a QTL close to PRKAG 3 affecting meat pH and colour in crossbred commercial pig lines

Improving meat quality is a high priority in the pork industry to enhance profitability and strengthen competitiveness. Meat pH and colour are two important measurements affecting meat quality. This study detected a promising genomic region on chromosome 15 affecting fresh (FpH24h) and thawed (TMpH) muscle pH, and fat colour b* (FCOL b*) by genome-wide association. Eight significant SNPs were confirmed affecting these traits. The most favorable one (SNP7) which is close to PRKAG3 explained 2.15%, 2.69% and 4.29% of the total phenotypic variance for the three traits. Three SNPs were intragenic with TNS1, NRAMP1 and PLCD4, and another four are close to RUFY4, CXCR2, SNORA42, mir375 and WNT10A. These results provide useful genomic information for marker assisted selection (MAS) on meat pH and colour. The MAS response and genomic architecture of this region need further investigation.
Atomic layer deposition as a tool of Surface engineering

The applications of nanostructured materials are close related to their shape and properties. A comprehensive understanding of the properties modification by controlling the material size, thickness or shape is of key importance. A nanostructure can become a building block to create the upcoming nano-technological stages, where the final characteristics of devices can be fine-tuned from design. In this report it is shown that several physicochemical properties, such as refractive index, band gap or thermal resistance can be modified in a controlled fashion. ALD is a very versatile fabrication technique for building nanotubes (Al2O3 and TiO2), nanolaminates (Al2O3-ZnO, Y2O3-ZrO2 and ZrO2TiO2) and core-shell materials (diamond-Al2O3) with an exquisite precision on the thickness of the coatings.
Sentiment Analysis of Movie Reviews Using Machine Learning Algorithms-A Survey

Sentimental analysis also known as “Opinion mining” deals with analyzing the emotions and classifying the opinions from text. It refers to the use of natural language processing, text analysis and computational linguistics. With the rapid development of web technology, a huge amount of data is being generated. Social networking sites like Facebook, Twitter, YouTube and Instagram are gaining a lot of popularity as they allow users from different parts of the world to share their views upon various topics through comments, posts, tweets and tags. The research article provides a survey of existing techniques for sentimental analysis like machine learning and lexicon based approaches. Using different algorithms like Naïve Bayes, Max Entropy, SVM and Ensemble classifier a research on different data streams has been provided.
TEXT INTERPRETATION USING A MODIFIED PROCESS OF THE ONTOLOGY AND SPARSE CLUSTERING

Many texts in online media consist of various information that need an appropriate way to extract and interpret them clearly. For better understanding of the content in the text collected from any online media, a proper methodology for the interpretation of useful information must be developed. This study offers a modified process of the text interpretation consisting of four stages with a preliminary stage of the text preprocessing and key phrase extraction using the annotated suffix tree (AST) technique and secondary stage of developing sparse clustering method named as iterative scaling of fuzzy additive spectral clustering (is-FADDIS) combined with a sharpening technique for grouping key phrases from the text. An ontology as the “knowledge base” was developed combining with is-FADDIS method as the third stage. Interpretation from the input text was carried out as the final stage of the text interpretation. The performances of isFADDIS clustering combined with sharpening technique as high as 96 and 78% were verified for some modeled sparse data and two specific real sparse data from two corpus, respectively, and could be better when comparing with Nonnegative Matrices Factorization (NMF) and K-means. The text interpretation of using the ontology gives a clear graph visualization on the relationship among key phrases even though it has a low correlation with content of the text. The result findings of this study potentially help us in ensuring an automatic process to be used for the interpretation of any topic information collected from online media.
LOOK INTO THE CAMERA: SCIENTISTS AND PHOTOGRAPHERS IN THE KAZAN PROVINCE IN THE END OF THE XIX CENTURY

1 Professor of the Institute of International Relations, History and Oriental Studies, Kazan (Volga region) Federal University, Russian Federation, 420080, Kazan, Kremlin Street, 18, E-mail: tatiana.titova@rambler.ru 2 Director of the Ethnographic Museum, Kazan (Volga region) Federal University, Russian Federation, 420080, Kazan, Kremlin Street, 18, E-mail: egguschina@mail.ru 3 Postgraduate student of the Institute of International Relations, History and Oriental Studies, Kazan (Volga region) Federal University, Russian Federation, 420080, Kazan, Kremlin Street, 18, E-mail: maria.wjatka@mail.ru LOOK INTO THE CAMERA: SCIENTISTS AND PHOTOGRAPHERS IN THE KAZAN PROVINCE IN THE END OF THE XIX CENTURY
The impulsive brain_ Neural underpinnings of binge eating behavior in normal-weight adults

Converging evidence suggests that dysfunctional inhibitory control might be at the roots of overeating and binge eating disorder (BED). The majority of these results stems from studies on obese populations, however we hypothesized that potential prodromes might be evident also in non-clinical conditions, when binge eating episodes are present (without a diagnosis of BED) and a normal Body Mass Index is preserved. To explore this issue, brain activity of 42 normal weight individuals with and without binge eating episodes (21 binge eaters and 21 non-binge eaters, BE and non-BE respectively) was assessed by means of functional magnetic resonance imaging (fMRI) during response inhibition tasks. We adopted a food-modified version of a go/no-go (GNG) and stop signal task (SST): these tasks investigate different aspects of inhibitory control (action restraint and cancellation) that have been rarely studied in the same individuals but that are known to involve different neural networks. In addition, impulsivity traits were assessed with self-report instruments. Despite similar behavioral performances, the two groups differed in trait impulsivity and brain activity. The fMRI results revealed differential engagement of fronto-striatal regions between the groups during the tasks. The BE group, compared to non-BE, showed lower activation of the right middle frontal gyrus (MFG) and Putamen during the GNG task, and higher activation of the left MFG during the SST. These findings provide evidence of a dissociation of the neural underpinnings of action restraint and cancellation in impulsive individuals. Moreover, they add support to the hypothesis that impulsivity may be a possible hallmark of binge eating behavior (in the absence of weight or full-blown eating disorders) and yield new insights on the role of regions typically involved in response inhibition and selection as possible substrates of impulsive eating.
The development of GABA-Iike immunoreactivity in the thoracic ganglia of the locust Schistocerca gregaria

The development of GABA-like immunoreactivity was investigated in embryonic and juvenile locusts using an antibody raised against GABA-protein conjugates. GABA-like immunoreactivity was first detectable in the neuropile of embryonic ganglia at 55% development, and in neuronal somata at 62% development. The total number of immunoreactive somata increased between 62% and 85% embryonic development, and followed an anterio-posterior pattern of expression. At 85% development, the number of immunoreactive somata reached adult levels and no change in number was then seen. In embryonic stages and first and second juvenile instars two dorsal and four ventral groups of somata were labeled in all three thoracic ganglia, whilst in later juvenile instars one of the dorsal groups was visible as a separate entity only in the metathoracic ganglion. These early patterns were modified by alterations in the positions of some of the groups during late embryogenesis and during juvenile development to produce the adult pattern. The results show that the development of GABA expression is similar to that of other neurotransmitters. The characteristics of the development of immunoreactivity indicate that some of these immunoreactive clusters may be derived from clonally related neurones. Finally, we demonstrate the presence of immunoreactive somata and processes in embryos, which correspond to those of identified local and intersegmental interneurones studied in the adult.
www.econstor.eu Tougher Educational Exam Leading to Worse Selection

A parallel of education with transformative processes in standard markets suggest that a more severe control of the quality of the output will improve the overall quality of the education. This paper shows a somehow counterintuitive result: an increase in the exam difficulty may reduce the average quality (productivity) of selected individuals. Since the exam does not verify all skills, when its standard rises, candidates with relatively low skills emphasized in the test and high skills demanded in the job may no longer qualify. Hence, an increase in the testing standard may be counterproductive. One implication is that policies should emphasize alignment between the skills tested and those required in the actual jobs, rather than increase exams' difficulties. Paper submitted to the special issue Quasi Markets in Education JEL I2, J24
ANALYSIS AND DESIGN OF HORN ANTENNAS WITH ARBITRARY PROFILE USING MODE-MATCHING

Abstract. One drawback of horn antennas is the difficulty in performing the required computations for their analysis and design. With the actual development of CAD tools these problems have been reduced but they are still far from being completely solved. Most commercial CAD tools employ general-purpose numerical techniques (like Finite Differences Method and Finite Elements Method) since they allow using the same software to simulate a wide range of devices. The disadvantage of these methods lies on the fact that this generality comes at a cost, the loss of efficiency. On the other hand, quasi-analytical techniques are usually more efficient but they can only work with a narrow spectrum of problems. The main objective of this work is to develop a software tool capable of analysing, simulating and designing horn antennas efficiently. To accomplish this, a quasi-analytical method called Mode-Matching will be used.
Symposium on ‘Nutrition and health in children and adolescents’ Session 2: Dietary quality and dietary recommendations in children and adolescents Dietary quality and adequacy of micronutrient intakes in children

Presented are longitudinal studies, extending from infancy (n 180) to 2 years of age (n 130) and 6 years of age (>70% participation) of diet and Fe status in a population with high birth weight, high frequency of breast-feeding and, at the time of the study, high intake of cow's milk during the weaning period. The association between socio-demographic and dietary factors was also studied, together with Fe status in early childhood and developmental status at 6 years. Fe status was found to be poorer than in the neighbouring Nordic countries. Every fifth 1-year-old was Fe-deficient (serum ferritin <12 μg/l and mean corpuscular volume <74 fl). It was demonstrated by regression analysis that Fe status was negatively associated with cow's milk consumption at 9–12 months (significant at >460 g/d) and was weakly positively associated with fish, meat and Fe-fortified cereal consumption. Fe-deficient infants had a shorter duration of breast-feeding, and breast-feeding was related to slower growth, which can protect from worsening Fe status. Fe deficiency was less common at ages 2 and 6 years. Maternal factors associated with lower adherence to the recommended infant diet were less education, lower age and smoking. In a multiple stepwise regression analysis that included food factors, socio-demographic factors were not found to be associated with Fe status. Fe-depleted and Fe-deficient 1-year-olds had lower fine motor scores when they were 6 years old than those who were not Fe-deficient or Fe-depleted. The findings of these studies have already led to changes in the local recommendations for diet in infancy. The results suggest that Fe deficiency at 12 months of age affects development at 6 years of age. The studies indicated that mothers with less education, who smoked and who were younger needed more guidance concerning recommendations about diet in infancy.
Dynamic Research on Risk Contagion of China's Stock Market, Bond Market and Foreign Exchange Market Based on MS-DCC Model

In recent years, economic growth has slowed down, systemic risk pressures have increased, financial markets have gradually opened up, and the financial system has faced new problems and challenges. The degree of risk correlation and contagion between financial markets is of particular concern. In this paper, by adopting the Markov three-zone state transition model and the dynamic correlation coefficient model, the risk dynamic relationship between China's stock, national debt and exchange rate market volatility and various market risks during 2005-2018 is explored, which provides a reference for the measurement and supervision of systemic financial risks in China. The experimental results are as follows: 1. From the perspective of its own risk characteristics, the stock market has three states of low, medium and high volatility, and the high school risk duration is 4.2 times of the low risk duration. The bond market and the exchange rate market are in a state of low to medium volatility, the exchange rate market risk conversion is more frequent, and the risk duration is shorter. 2. In major financial risk events such as the financial crisis, market risks are different, but risk aversion is the main motivation. 3. For the exchange rate, the bond market has a more serious market segmentation, and a more independent regulatory policy can be adopted. There is a clear risk correlation between the stock market and the other two markets. It is necessary for regulators to consider and conduct systematic supervision on a global scale.
Risk Factors For Coronary Heart Disease : A Case Control Study

Research question: What is the role of different risk factors in causation of CHD. Objective: To identify the risk factors contributing to the outcome of CHD. Design: Pair matched case-control study. Setting: Government Medical college, Nagpur, India, a tertiary care hospital. Participants: The study included 294 incident cases of CHD diagnosed by standard criteria. Each case was pair matched with one control for age and sex. Controls were selected from subjects attending the hospital for conditions other than CHD. Main Outcome Measure: CHD. Study variable: Socio-economic status (SES), physical inactivity (PI), family history of CHD, type A personality (TAP), cigarette smoking (CS), alcohol consumption (AC), obesity, oral contraceptive use (OC use), diabetes mellitus (DM), hypertension (HT) and total serum cholesterol TSC). Results: On univariate analysis all the 11 risk factors were significantly associated with CHD. Conditional multiple logistic regression identified significant association of SES (OR 2.92, 95% CI 2.28-3.73), PI (OR 2.03, 95% CI 1.56-2.62), OC use (OR 3.96, 95% CI 1.11-14.02), obesity (OR 1.62, 95% CI 1.15-2.27), DM (OR 2.17, 95% CI 1.13-4.13), HT (OR 4.23, 95% CI 2.56-6399), TSC (OR 3.84, 95% CI 2.58-5.72) and CHD. Estimates of attributable risk proportion and population attributable risk proportion for the significant factors confirmed their etiological role and impact of these factors on the development of CHD in this population. Conclusion: This study identified significance of SES, PI, OC use, obesity, DM, HT and TSC in multivariate environment in the outcome of CHD.
Interactive Cloth Rendering and Appearance Editing under Environment Lighting 水谷一貴

CG分野において,布の質感をリアルに表現することは 重要な研究課題の一つである. 布のレンダリングでは,現 実世界の複雑な照明(環境照明)下において布の質感を表 す散乱特性をインタラクティブに変化させて外観を編集す ることが望まれる. 従来の布のレンダリング手法では,単 純な光源のみを対象としているか [6],計測データを用い ているため外観をインタラクティブに編集することが難し い [7, 8, 9]. 本稿は,織り合された糸から構成される布の高速レンダ リング法および布の外観編集法を提案する. 本稿では,布 の散乱モデルとして Sadeghiらの提案したマイクロシリン ダモデル [6]を使用する. マイクロシリンダモデルにおけ る布の輝度は,入射光の輝度,布の散乱関数,および布を 構成する糸の幾何構造に基づいた重み関数の積を積分する ことによって計算される. 提案法では入射光(環境照明) を球面ガウス関数の線形和で表現する. 球面ガウス関数, 散乱関数と重み関数の積の積分を,球面ガウス関数と重み 関数の畳み込み積分と,球面ガウス関数と散乱関数の積分 の積で近似する. 畳み込み積分は前計算可能であり,レン ダリング時にテーブル参照するだけでよい. 球面ガウス関 数と散乱関数の積分は解析的に計算可能なため,レンダリ ング時に布の材質特性をインタラクティブに変更すること が可能となる.
Bacillus cereus bacteria in foodstuffs may cause gastrointestinal diseases-BfR Opinion No. 035/2019 of 16 September 2019

Bacillus (B.) cereus is the eponymous representative of the B. cereus group, which currently includes 18 recognised, closely related species that can only be distinguished from each other by means of very complex laboratory experiments. As a result, the so called presumptive B. cereus is primarily detected in food inspections, which means: a bacterium from the Bacillus cereus group. The current opinion provides information about health risks from bacteria in the B. cereus group in foods and names preventative measures, mainly in order to create a basis for assessing foodstuffs by food monitoring authorities in Germany.
Gamifying Assessment: Extending Performance Measures with Gaming Data

: Games are everywhere. Billions of kids all over the world are playing entertain games. At the same time each player enriches commercial marketing datasets from which marketing companies produce an optimal marketing campaign for specific geographical region and customer segment. All this is done in individual, national and global level. Unlike marketing, learning is a complex phenomena and it’s very challenging to produce instruments that connects single learning event into more general performance metrics. In this study we build higher level metrics for assessing pupils with games. The metrics is based Conceptual Change that is revealed by mining the game activities. In individual level we can point out the Zone of Proximal Development as well as anxiety and boredom. In Flow theory anxiety and boredom are consequence of unbalanced skills and competence. Finally, in gamified environments the Zone of Proximal Development can be seen as a parallel concept to Flow and so Flow can also be seen an indicator for learning.
An Empirical Study on the Impact of Enterprise Knowledge Capital Investment and Intellectual Capital on Firm Performance

In the era of knowledge economy, intellectual capital has surpassed physical capital and has become the fundamental driving force for the existence and development of enterprises. Based on this, the article empirically studies the impact of corporate intellectual capital investment and intellectual capital on corporate performance. Based on the simple analysis of the research progress of enterprise intellectual capital investment, the paper analyzes the contribution of intellectual capital investment to corporate performance, and enhances the confidence of enterprise managers in intellectual capital investment to strengthen intellectual capital investment and management.