Miracle-dz/UniFAR-FTUs huggingface dataset:
In-game behaviour analysis of football players using machine learning techniques based on player statistics

The purpose of this research was to determine the on-field playing positions of a group of football players based on their technical-tactical behaviour using machine learning algorithms. Each player was characterized according to a set of 52 non-spatiotemporal descriptors including offensive, defensive and build-up variables that were computed from OPTA’s on-ball event records of the matches for 18 national leagues between the 2012 and 2019 seasons. To test whether positions could be identified from the statistical performance of the players, the dimensionality reduction techniques were used. To better understand the differences between the player positions, the most discriminatory variables for each group were obtained as a set of rules discovered by RIPPER, a machine learning algorithm. From the combination of both techniques, we obtained useful conclusions to enhance the performance of players and to identify positions on the field. The study demonstrates the suitability and potential of artificial intelligence to characterize players' positions according to their technical-tactical behaviour, providing valuable information to the professionals of this sport.
Aposematic coloration and mimicry in opisthobranch mollusks: new phylogenetic and experimental data

EnglishExpression of aposematic color patterns in opisthobranchs is more prevalent and more overtly manifested in more derived rather than more basal taxa. This is the case in clades such as Tharidilla, Siphopteron, Flabellina and Halgerda. In other instances, one taxon is cryptic and its sister taxon exhibits aposematic coloration. Generally, closely related species have similar color, patterns, but in one clade of Fabellina, four closely related species have strongly divergent color patterns. Sympatric species with similar color patterns result from both descent from a common ancestor as well as from convergent evolution. Contemporary phylogenetic analytical methods provide a basis for distinguishing evolution of similar color patterns between common descent and homoplasy. Species-specific differences in palatability of similarly colored prey for different predators blur traditional distinctions between Batesian and Mullerian mimicry. Additional studies on other mimicry complexes to determine whether these patterns are more generalized need to be undertaken. italianoL’espressione di pattern cromatici aposematici negli opistobranchi sembra essersi maggiormente affermata in taxa "derivati" piuttosto che "basali"' Questo e evidente in cladi quali Tharidilla, Siphopteron, Flabellina e Halgerda. D'altra parte, un taxon puo presentare una colorazione criptica e la sua ,”specie sorella” avere una colorazione aposematica. Di norma, specie filogeneticamente affini hanno pattern cromatici simili, ma in un clade di Flabellina, quattro specie strettamente imparentate mostrano una colorazione fortemente divergente.Specie simpatriche, pur presentando una colorazione simile, possono derivare sia da un antenato comune che essere la conseguenza di un'evoluzione convergente. Gli attuali metodi d'analisi filogenetica permettono di distinguere se un pattern cromatico derivi da un processo evolutivo diretto o sia dovuto ad un fenomeno di convergenza. Differenze specie-specifiche tra specie a pattern cromatici simili nell'appetibilita da parte di predatori diversi rendono meno chiara la tradizionale distinzione tra mimetismo batesiano e mulleriano.Nuovi studi su altri complessi mimetici saranno comunque necessari per definire se tali processi siano piu generali di quanto ritenuto fino ad oggi.
Classification of tectonic and non-tectonic seismicity based on convolutional neural network

In this paper, convolutional neural networks (CNNs) were used to distinguish between tectonic and non-tectonic seismicity. The proposed CNNs consisted of seven convolutional layers with small kernels and one fully connected layer, which only relied on the acoustic waveform without extracting features manually. For a single station, the accuracy of the model was 0.90, and the event accuracy could reach 0.93. The proposed model was tested using data from January 2019 to August 2019 in China. The event accuracy could reach 0.92, showing that the proposed model could distinguish between tectonic and non-tectonic seismicity.
Acoustic Emission Analysis of Polymer Electrolyte Membrane Fuel Cells

The performance of a polymer electrolyte membrane fuel cell (PEMFC) is characterized using acoustic emission (AE) based analysis. Polarization scans indicate that an increase in cell temperature from 45°C to 60°C results in a drop in maximum current density due to cell dehydration. Parametric analysis of acoustic activity generated from the PEMFC during polarization establishes a relationship between the cell operating conditions and the corresponding AE generated. Optimal and dehydrated cell conditions result in stable and reduced numbers of generated acoustic events, respectively, which are related to the flow of water and its physical state in the flow-fields. Furthermore, the AE parameters utilized for hydration analysis are amplitude and counts, which correspond to intensity and proportion of AE generated beyond a threshold, respectively; these are influenced by current density, reactant humidity, and cell temperature.
A Novel Approach to Shadow Boundary Detection Based on an Adaptive Direction-Tracking Filter for Brain-Machine Interface Applications

In this paper, a Brain-Machine Interface (BMI) system is proposed to automatically control the navigation of wheelchairs by detecting the shadows on their route. In this context, a new algorithm to detect shadows in a single image is proposed. Specifically, a novel adaptive direction tracking filter (ADT) is developed to extract feature information along the direction of shadow boundaries. The proposed algorithm avoids extraction of features around all directions of pixels, which significantly improves the efficiency and accuracy of shadow features extraction. Higher-order statistics (HOS) features such as skewness and kurtosis in addition to other optical features are used as input to different Machine Learning (ML) based classifiers, specifically, a Multilayer Perceptron (MLP), Autoencoder (AE), 1D-Convolutional Neural Network (1D-CNN) and Support Vector Machine (SVM), to perform the shadow boundaries detection task. Comparative results demonstrate that the proposed MLP-based system outperforms all the other state-of-the-art approaches, reporting accuracy rates up to 84.63%.
The Effect of Using Simulation on Developing Students’ Character Education in Learning Economics

This research aims to explain the effect in using simulation to develop students’ educated character in learning economics. The quantitative analysis uses pre-and post-test experimental design, while descriptive analysis is completed with percentage analysis and the category of the mean score. Instruments of data collection use observation rule and questionnaire by using four scale assessments start from very good/strongly agree until very bad/strongly disagree. The result of the research shows that there are different characters in education development before and after implementation simulation in learning economics. The use of simulation in learning economics has an effect on the development of student character education. The simulation in learning economics can develop the students’ character with very good category, with a total percentage that shows the number of good at 56.29% and very good at 42.71%. Through simulation, learning economics conducted is easier to develop the very important character education in students’ life. The simulation which presents the real situation in learning economics improves the students’ learning experience in economics field, so that the students can feel that real condition, especially for learning activity to do the economical activity by implementing good characters (by using good ways) and avoids the bad ways which can be harmful for others.
Bespreking van: B.G. Peters & G. Fontaine (Eds.), Handbook of research methods and applications in comparative policy analysis, Cheltenham: Edward Elgar Publishing 2020

Comparatieve beleidsanalyse (CPA, comparative policy analysis) is, zo stellen de redacteuren van dit ruim 400 pagina’s dikke boek, in belangrijkheid snel aan het toenemen. Met als peildatum december 2018 vonden zij bijna 250 verwijzingen naar peer-reviewed publicaties over CPA, waarvan het merendeel van na 2015 is. Alhoewel dit aantal geringer is dan de ruim 700 publicaties over ‘comparative politics’, is het aanzienlijk groter is dan de hooguit 40 referenties naar ‘comparative public administration’, die zij aantroffen in het Web of Science. Aan de vraag waarom dit zo is, wordt kort aandacht besteed; het overgrote deel van het boek gaat over methodische, theoretische, statistische en epistemologische aspecten van CPA.
Exploratory of Electrical Learning Kit for STEM Application

Throughout the year, the implementation of the traditional approach (lecture-based) in the teaching and learning process seems to be less effective in increasing the interest among students towards the STEM subjects. Conversely, the use of practical learning method emphasizes on the psychomotor domain so that readers gain a clearer and more effective understanding. Thus, the aim of this paper is to investigate and exploratory the unique approach in implementation the learning kit where the students will increase their understanding towards the fundamental of electrical engineering. The effects that influenced the development process of learning kit is discussed and provided the ideas to build a quality learning kit for students who involved in STEM.
Approximation of the invariant distribution for a class of ergodic jump diffusions

In this article, we approximate the invariant distributionνof an ergodic Jump Diffusion driven by the sum of a Brownian motion and a Compound Poisson process with sub-Gaussian jumps. We first construct an Euler discretization scheme with decreasing time steps. This scheme is similar to those introduced in Lamberton and PagèsBernoulli8(2002) 367-405. for a Brownian diffusion and extended in F. Panloup,Ann. Appl. Probab.18(2008) 379-426. to a diffusion with Lévy jumps. We obtain a non-asymptoticquasiGaussian (asymptotically Gaussian) concentration bound for the difference between the invariant distribution and the empirical distribution computed with the scheme of decreasing time step along appropriate test functionsfsuch thatf−ν(f) is a coboundary of the infinitesimal generator.
Kompetitivna ekskluzija bakterijama mliječne kiseline

Intestinal barrier integrity is a prerequisite for homeostasis of mucosal function, which is responsible for increasing absorptive capacity without disturbing efficient defensive reactions against chemical and microbial challenges. Evidence is mounting that disruption of epithelial barrier integrity is one of the major aetiological factors associated with several gastrointestinal diseases, including pathogen infection, obesity, diabetes, inflammatory bowel disease, irritable bowel syndrome and necrotising enterocolitis. However, there are indications that probiotic strains of lactic acid bacteria (LAB) can positively affect intestinal barrier integrity, which led to increased intensity of researches in which in vitro cell lines, animal models and clinical trials assess whether probiotics, when applied in people, can revert to homeostasis and health. Among potential probiotic strains of LAB, species of the genus Lactobacillus stand out, especially strains which express layer of specific S-proteins on the cell surface. In this work, the ability of probiotic strain Lactobacillus brevis SF9B to regenerate the layer of S-protein after exposure of the cells to stimulated conditions of gastrointestinal tract was examined. The role of S-protein in competitive exclusion of bacteria Listeria monocytogenes ATCC 19111 and Staphylococcus aureus 3048 with the same probiotic strain in in vitro experiments using intestinal epithelial cells of Caco-2 cell line was also tested.
Exploring probabilistic seismic risk assessment accounting for seismicity clustering and damage accumulation: Part I. Hazard analysis

Probabilistic seismic hazard analysis (PSHA), as a tool to assess the probability that ground motion of a given intensity or larger is experienced at a given site and time span, has historically comprised the basis of both building design codes in earthquake-prone regions and seismic risk models. The PSHA traditionally refers solely to mainshock events and typically employs a homogeneous Poisson process to model their occurrence. Nevertheless, recent disasters, such as the 2010–2011 Christchurch sequence or the 2016 Central Italy earthquakes, to name a few, have highlighted the potential pitfalls of neglecting the occurrence of foreshocks, aftershocks, and other triggered events, and pinpointed the need to revisit the current practice. Herein, we employ the epidemic-type aftershock sequence (ETAS) model to describe seismicity in Central Italy, investigate the model’s capability to reproduce salient features of observed seismicity, and compare ETAS-derived one-year hazard estimates with ones obtained with a standard mainshock-only Poisson-based hazard model. A companion paper uses the hazard models derived herein to compare and contrast loss estimates for the residential exposure of Umbria in Central Italy.
Reduction rate of nematode egg counts and third-stage larvae development from sheep and goat faeces preserved at 4οC

Ο γαστρeντeρικός παρασιτισμός προκαλeί σημαντικές απώλeιeς παραγωγής στα μικρά μηρυκαστικά. Ο συχνότeρος τρόπος διάγνωσης ή παρακολούθησης του eπιπέδου παρασιτισμού στα πρόβατα και τις αίγeς eίναι οι ποσοτικές παρασιτολογικές eξeτάσeις κοπράνων. Ωστόσο, η αξιοπιστία των μeθόδων αυτών βασίζeται κατά πολύ στις συνθήκeς και τη διάρκeια αποθήκeυσης των κοπράνων πριν την eξέταση. Ο σκοπός της παρούσας έρeυνας ήταν η αξιολόγηση του ρυθμού απώλeιας των αυγών και ο καθορισμός του μeγίστου χρόνου συντήρησης των κοπράνων στους 4oC χωρίς σημαντικές τέτοιeς απώλeιeς. Eπίσης, ο καθορισμός του μέγιστου χρόνου συντήρησης των κοπράνων χωρίς σημαντική eπίδραση στην eξέλιξη των προνυμφών στο 3ο (μολύνον) στάδιο. Για το σκοπό αυτό συλλέχθηκe ένα ομαδικό δeίγμα κοπράνων, ξeχωριστάγια πρόβατα και αίγeς, από φυσικώς μολυσμένα μικρά μηρυκαστικά. Τα κόπρανα eξeτάσθηκαν φρέσκα κατά την ημέρα της συλλογής τους και σe eβδομαδιαία χρονικά διαστήματα, κατά τη συντήρησή τους στους 4oC, έως 119 ημέρeς μeτά τη συλλογή τους. Ταυτόχρονα μέρος των κοπράνων, τις ίδιeς χρονικές στιγμές μe την ποσοτική eξέταση για αυγά, καλλιeργούνταν για την eκκόλαψη και eξέλιξη των προνυμφών στο 3ο (μολύνον) στάδιο. Διαπιστώθηκe ότι η συντήρηση των κοπράνων απόπρόβατα και αίγeς στους 4oC, για παράδeιγμα στο ψυγeίο, όταν προορίζονται για παρασιτολογικές eξeτάσeις eγκυμονeί κινδύνους λανθασμένης διάγνωσης, eάν δeν πραγματοποιούνται σe χρονικό διάστημα το οποίο δeν υπeρβαίνeι τις 3 eβδομάδeς. Ο ρυθμός της απώλeιας των αυγών των παρασίτων στα κόπρανα αρχίζeι να γίνeται σημαντικά χαμηλότeρος συγκριτικά μe τα φρέσκα δeίγματα, μeτά την 3η eβδομάδα συντήρησης στους 4oC. Το ποσοστό της eξέλιξης των προνυμφών στο 3ο στάδιο μeταβάλλeται σημαντικά για το γένος Haemonchus αμέσως μeτά την πρώτη eβδομάδα συντήρησης των κοπράνων (p<0,05).
Memoirs: The Developmental Mechanics and Potencies of the Undifferentiated Mesenchyme of the Mandible

The origin and early development of the muscles, cartilage, and bone of the embryonic avian mandible were investigated by histological and tissue culture methods applied to the embryonic domestic fowl. 1. Muscle. --The muscles of the mandible do not arise in the mandibular arch. The myogenic cells migrate into the arch between the second and third day as a histologically distinct group. Explantation experiments in vitro showed that the myogenic cells are determined to form cross-striated muscles as early as the third day. 2. Cartilage. --The chondrogenic cells of either side originate from a small proliferation centre immediately beneath the buccal epithelium of the branchial arch. Proliferation of the chondrogenic cells continues from the third to the sixth day, forming a pronounced, rounded swelling near the distal end of the mandible. It was demonstrated experimentally that elongation of the mandibular arch to form the jaw is mainly due to apical growth caused by proliferation from the paired chondrogenic centres. By the seventh day the chondrogenic proliferation centre is exhausted. Experiments showed that the cells of the chondrogenic proliferation centre in the 3-day jaw are already determined to form cartilage. 3. Bone. --The osteogenic cells destined to form the os angulare, spleniale, and supra-angulare arise from a single proliferation centre which appears at about the fourth day immediately beneath a slightly thickened patch of presumptive epidermis at the proximo-lateral end of the mandible. This centre becomes subdivided into a medial and a lateral part by cell degeneration in the interior. Both parts continue to grow in a distal direction. The lateral division forms the os supra-angulare, while the medial division is cut transversely into two sections by branches of the mandibular nerve. The distal section forms the os spleniale and the larger, proximal section the os angulare. It was demonstrated by explantation experiments that the cells of the osteogenic proliferation centre in the 4-day mandible are already determined to form bone. The osteogenic cells destined to form the os dentale originate at about the fifth day from a separate centre in the disto-lateral part of the mandible, beneath a thickened patch of mouth epithelium corresponding to the rudiment of the enamel epithelium in mammals. The cells of this disto-lateral osteogenic centre were shown to be self-differentiating in vitro when explanted at the fifth day. The authors are greatly indebted to the Rockefeller Foundation for a grant in aid of this research; they also wish to thank Mr. V. C. Norfield, senior assistant of the Strangeways Eesearcb Laboratory, for his help in preparing the figures.
Inhibitory effect of Ocotea quixos (Lam.) Kosterm. and Piper aduncum L. essential oils from Ecuador on West Nile virus infection

Abstract West Nile virus (WNV) is a mosquito-borne flavivirus responsible of neuroinvasive manifestations. Natural products are well-known for their biological activities and pharmaceutical application. In this study, the inhibitory effects of essential oils (EOs) of Ocotea quixos (Lam.) Kosterm. and Piper aduncum L. on WNV replication were investigated. WNV was incubated with EOs before adsorption on Vero cells, viral replication was carried out in the absence or presence of EO. Cells were exposed to EO before the adsorption of untreated-virus. GC-MS and GC-FID were used for chemical characterization of EOs. Cell protection from infection was observed for both EOs. P. aduncum EO was characterized by dillapiole as main compound (48.21%) and O. quixos EO by 1,8-cineole (39.15%). Further investigations, such as the study of molecular and cellular mechanisms of action and in vivo evaluation, should be performed on these essential oils to derive new potential drugs against WNV.
Comparative effects of cantharidin and endothall on gene expression and activity of antioxidant enzymes in Cichorium intybus L.

Cantharidin and its analog, endothall, are known to have phytotoxic effects and their mechanism of action involves the inhibition of phosphatases. Enzymes and antioxidant compounds act as barriers against phytotoxic compounds. Catalase and peroxidase are among the most important antioxidant enzymes. Cichorium intybus L. has traditionally been used for its medicinal properties and contains various phytochemical and enzymatic compounds. The present study aimed to investigate the comparative effects of cantharidin and endothall with concentration of 2.5, 5.5 and 10 µg ml -1 on the changes in the gene expression of catalase and glutathione peroxidase. Furthermore, we assess the activities of these enzymes in the shoots and roots of Cichorium intybus L. According to the findings, the expression of catalase and glutathione peroxidase increased in the samples treated with cantharidin more than endothall compared to the controls in both shoot (the most significant is in cantharidin with 2.5 µg ml -1 concentration) and root samples (the most significant is in cantharidin with 5.5 µg ml -1 concentration). In addition, the activity of catalase and concentrations of cantharidin (2.5 µg ml -1 ) in shoot samples led to the more intense stimulation of catalase and glutathione peroxidase compared to root samples. We suggest that cantharidin and endothall have negative effect on expression and absorption of antioxidant enzymes.
Fracture behaviour of pristine and defective form of water submerged h-BN nanosheets

Hexagonal boron nitride (h-BN) nanosheets are emerging as potential candidates to replace polymeric membrane for water purification. Synthesizing the membrane size of immaculate h-BN is a fictitious concept. So far, no articles have reported on the fracture behaviour of pristine and defective h-BN nanosheets in a water-submerged state. In this article, classical mechanics-based simulations were employed to study the effect of the hydrogen functionalization of sp-hybridized crack edge atoms and spatial distribution of Stone–Thrower–Wales (STW) and dislocation defects on the fracture properties of water-submerged h-BN nanosheets. Classical mechanics-based simulations were carried out with the help of hybrid-type interatomic potential in which reactive force field and transferable intermolecular potentials were used for arresting the atomistic interaction in h-BN and water, respectively, while for interfacial interactions, Lennard–Jones potential was employed. Enhancement in the values of fracture toughness of h-BN was investigated in the prescence of water molecules compared to in a dry state. It was deduced from the results that passivation, as well as the spatial distribution of STW defects, have a deteriorating effect on the values of fracture toughness of h-BN in the dry state, but water molecules help in nullifying a negative affect. Compared to the spatial distribution of dislocations, the STW type of defects have a more pronounced effect on the values of fracture toughness of h-BN water-submerged state. It can be predicted from the simulations that these improved fracture toughness values in a water-submerged state will help in developing these nanosheets as an effective desalination membrane in water purification.
Fast Packet Classification using RISC-V and HyperSplit Acceleration on FPGA

Performance demands in communications technology is driving research towards advanced network processors, which are able to handle huge rates of incoming packets via application-specific circuits, however, without sacrificing all of the conventional CPU flexibility. At the same time, the advent of RISC-V is disrupting the industry & academia by opening computer architecture to a broader research community. Combining the above, the current paper considers placing dedicated VHDL accelerators next to a RISC-V processor to accommodate network functions via customized HW/SW co-processing. We extend the ISA with a new instruction to perform search tree operations that accelerate Packet Classification tasks in routers. For rapid prototyping and design exploration, we implement the binary search of HyperSplit algorithm on an Xilinx Ultrascale xcku060 FPGA. Our design achieves up to 118× faster classification than RISC-V alone and sustains up to 25.4M packets/sec throughput.