Miracle-dz/UniFAR-FTUs huggingface dataset:
An efficient and facile synthesis of the coumarin and ester derivatives using sulfonated polyionic liquid as a highly active heterogeneous catalyst

Article history:Received Received in revised form Accepted Available online In this research, a novel solid acid catalyst, sulfonic acid immobilized on poly ionic liquid (SPIL), was described. The final catalyst, SPIL, which was simply synthesized and characterized by fourier transform infrared spectroscopy and thermo‐gravimetric analysis, was found to be an efficient and environmentally benign solid acid for the Pechmann and esterification reactions under the solvent free conditions. The studies showed that the catalyst could be easily recovered and reused at least three reaction cycles without any significant loss in catalytic activity and efficiency. 1. Introduction Ionic liquids, a class of low-melting chemical compounds that include an organic cation and an organic/inorganic anion, are known as molten salts. Generally, the cation is an organic species containing heteroatoms such as phosphorous, sulfur, and nitrogen and the anion may be varied as chloride, bromide, iodide, tetrafluoroborate, hexafluorophosphate, nitrate, and acetate [1]. Because of their unique properties such as non-volatility, non-flammability, safety, recyclability and ability to dissolve a wide range of compounds, a variety of ionic liquids have been used in organic synthesis [2-6]. In recent years, synthesis of
New Analytical Model of Value Prediction

Value prediction is a technique for speculative execution of data dependent instructions based on predicted outcomes of instructions. The predicted outcomes are supplied by a special hardware device called value predictor. Despite the numerous reports on the benefits of value prediction there is still no commercial processor that employs this technique. One limiting factor of the performance potential of value prediction is the value predictor latency. In this paper we extend an existing analytical model of the processor in order to evaluate the effect of value predictor latency. We conclude that the value predictor latency must be reduced and value prediction latency should be overlapped by some other pipeline stages. In addition, value prediction should be made only on instructions with high execution latencies.
Local Open Government Model for Rural Municipal- ities: Opportunities and barriers from the experi- ence of Calle Larga

The Open Government; understood as a management paradigm or model, has managed to position itself as a key formula to the fight against corruption and distrust of public institutions; becoming an ally of public integrity. In spite of the advances in this matter from nations and its multilateral network, the Alliance for Open Government, it is in local governments where it may express better the scope and impact on people. In this regard, the present work shows the experience of developing a model of Local Open Government from the experience of the Chilean Municipality of Calle Larga, where the main opportunities and barriers that are in a rural context were detected in order to propose the implementation of an alternative model of Open Government in local administrations.
Existence of solutions for conformable fractional problems with nonlinear functional boundary conditions

In this article, we study the existence of solutions for nonlinear conformable fractional differential equations with nonlinear functional boundary conditions. We obtain the exact expression of the fractional Green’s function related to the linear problem. Moreover, the method of upper and lower solutions together with Schauder’s fixed point theorem is developed for the nonlinear conformable fractional problems with nonlinear functional boundary conditions.
Hardware-Software Complex of the Mobile Brain-Computer Interface for Technical Means of Rehabilitation

Brain-computer interfaces, which are systems for the exchange of information between the brain and an electronic device, are the subject of unabated scientific interest in many laboratories in the world. Today, the practical application of brain-computer interfaces is found mainly in the field of rehabilitation. Research conducted in the 1970s at the University of California at Los Angeles showed the fundamental possibility of restoring the damaged functions of hearing and vision, as well as lost motor skills due to biological feedback. In this paper, the hardware-software complex of a mobile sensorimotor brain-computer interface based on electroencephalography for controlling modern technical means of rehabilitation is considered. Software implementation of the technology of localization of sources of electrical activity of the brain allows designing a device with the number and location of electrodes that is optimal for a particular patient according to the signal to noise ratio. The basis of the device is a wearable platform for enhancing biopotentials, providing mobility and ease of use in combination with technical means of rehabilitation.
Utility of Trans-Abdominal Ultrasonography for Diagnosis of Gastroesophageal Reflux (GERD) Induced by Esophagitis

Background: Gastroesophageal reflux disease is one of the most common diseases in adults. Ultrasonography (US) is a noninvasive and reliable diagnostic tool for the disease at least in infants but the diagnostic value in adults has not been evaluated well.Methods: A total of 72 patients complaining form gastroesophageal reflux disease symptoms who have undergone upper endoscopy were recruited for this study. In abdominal sonography, the following variables were measured or observed: esophageal wall thickness at gastroesophageal junction, AP diameter of esophagus at hiatus and gastroesophageal junction, abdominal esophagus length, funnel shape esophagus and presence of reflux after drinking a glass of water.Results: Among all variables, only the presence of reflux in sonography was significantly related to the positive endoscopic findings with a sensitivity of 45% and specificity of 86%. Conclusion: Sonography can predict induced esophagitis by gastroesophageal reflux disease induced.
Promoting Instructional Change: Using Social Network Analysis to Understand the Hidden Structure of Academic Departments

Calls for improvement of undergraduate science educ ation have resulted in numerous change initiatives that seek to improve student learning o utc mes by promoting changes in faculty teaching practices. Although many change initiative s focus on individual faculty, researchers consider the academic department to be a highly pro ductive focus of change initiatives. In this paper, we argue that it is important for change age nts to understand the hidden social structure of the academic department and introduce social networ k analysis techniques to uncover this hidden social structure. Examples are given from data coll e ted in five academic departments. A short web survey was used to ask instructors in these dep artments to identify colleagues with whom they discuss teaching and how frequently. Technique s of social network analysis are identified that can be used to determine the current state of the department, target participants for a change initiative, and anticipate the spread of new teachi ng ideas. Results suggest that these techniques do indeed identify social structures that would oth erwise be hidden and that may be important for planning change initiatives.
Method for Automatic Segmentation of Vehicles in Digital Images

Introduction. Modern systems for active vehicle safety are designed to significantly reduce the number of road accidents. Sensors based on monocular cameras are increasingly being introduced by the world's leading automakers as an effective tool for improving traffic safety. Modern methods of localisation and classification, combined with semantic segmentation algorithms, allow for image division into independent groups of pixels corresponding to each object. However, the problem of developing segmentation algorithms ensuring improved quality of image segmentation remains to be solved.Aim. To develop an automatic method for segmenting a given object during image analysis.Materials and methods. An automatic method for segmenting vehicles in an image was proposed. The method presented herein allows semantic segmentation of the object of interest, based upon a priori information about the bounding boxes, which frame the objects in the image. Bounding box information is used to transform an image into a polar coordinate system where the pixels of the image act as the edges of a weighted graph. A closed contour is obtained around the object of interest by using the shortest path search algorithm and inverse transformation to the Cartesian coordinate system.Results. The experiments confirmed the correctness of the selected area of interest based on this algorithm. Jacquard’s similarity coefficient for the Carvana open database is 85 %. Furthermore, the proposed method was applied to different classes of images from the Pascal VOC database, thus demonstrating the ability to segment objects of other classes.Conclusion. The main contribution of the proposed method was as follows: 1) segmentation of the object of interest at the level of modern methods, and in some cases in excess thereof; 2) the study presents a new look at the way of tracking object contours.
The Prevalence of Borderline Personality Disorder, Antisocial Tendencies, and Aggression among Male and Female Inmates

The objective of this study was to identify and compare the prevalence of borderline personality disorder, antisocial tendencies, and aggression between male and female inmates. A crosssectional study involving inmates at prisons in Peninsular Malaysia was designed. Self-report psychometric instruments were used for data collection followed by descriptive analysis, independent t-test, and Pearson’s correlation test. The findings showed that the prevalence of borderline personality disorder and antisocial tendencies behaviours are considerably high in both male and female inmates. In addition, both groups indicated high tendencies for four aggression scales. Comparison between the gender groups showed that only antisocial tendencies and physical aggression were significantly different between male and female inmates. Further tests demonstrated significant correlations between all variables, indicated that borderline personality disorder, antisocial tendencies, and aggression were associated. In conclusion, borderline personality disorder, antisocial tendencies, and aggression were highly prevalence among male and female inmates.
Signaling Effects of Layoffs in South Korea

I examine an asymmetric-information model of layoffs (Gibbons and Katz, 1991) by comparing changes in earnings of laid-off workers and displaced workers by plant closings using Korean data. The estimation result shows that laid-off male workers experience 11.5% greater earnings losses than those displaced by plant closings. Laid-off workers also have longer unemployment spells. Contrary to previous studies, the signaling effect of layoffs is observed not only in white-collar but also blue-collar occupations in South Korea. The seniority-based wage payment system and low unionization rate in South Korea are suggested as possible reasons for this unique finding.
Application and Comparison of Uncertainty Quantification Methods for Railway Vehicle Dynamics with Random Mechanical Parameters

This paper aims to investigate uncertainties in railway vehicle suspension components and the implement of uncertainty quantification methods in railway vehicle dynamics. The sampling-based method represented by Latin Hypercube Sampling (LHS) and generalized polynomial chaos approaches including the stochastic Galerkin and Collocation methods (SGM and SCM) are employed to analyze the propagation of uncertainties from the parameters input in a vehicle-track mathematical model to the results of running dynamics. In order to illustrate the performance qualities of SGM, SCM and LHS, a stochastic wheel model with uncertainties of the stiffness and damping is firstly formulated to study the vertical displacement of wheel. Numerical results show that SCM, which can be easily implemented by means of the existing deterministic model, has explicit advantages over SGM and LHS in terms of the efficiency and accuracy. Furthermore, a simplified stochastic bogie model with three random suspension parameters is also established by means of SCM and LHS to analyze the critical speed, which is affected obviously by the parametric uncertainties. Finally, a stochastic vertical vehicle-track coupled model with parametric uncertainties is built comprehensively on the basis of SCM, by which the impact behavior of wheel-rail interaction under a rail defect is investigated and the dynamic response of vehicles under the track irregularity is explored in terms of the Sperling index. It concludes that the uncertainties of parameters have a significant influence on P2 force and Sperling index from the view of the running quality.
A general recursive linear method for the perspective-n-point problem

In this paper, a new method for solving the perspective-n-point (PnP) problem is developed. With an auxiliary point, the linear method for the special case of four coplanar points is extended to find the coarse solutions for the general P3P problem. A recursive least square algorithm with a forgetting factor is introduced to find all the accurate solutions for the P3P problem. Then the algorithm is extended to the general PnP problem. The solution stability issues are investigated for the P3P, P4P and P5P problem respectively. Furthermore, a pattern is designed to ensure unique solution for the PnP problem. Experiments are performed to verify the effectiveness of the proposed method.
EPP-NOx in Antarctic springtime stratospheric column: Evidence from observations and influence of the QBO

Abstract. Observations from the Ozone Monitoring Instrument (OMI) on the Aura satellite are used to study the effect of energetic particle precipitation (EPP, as proxied by the geomagnetic activity index Ap) on the Antarctic stratospheric NO2 column in late winter-spring (Aug-Dec) during the years 2005–2017. We show that the polar (60° S–90° S) stratospheric NO2 column is significantly correlated with EPP throughout the Antarctic spring, until the breakdown of the polar vortex in November. The strongest correlation takes place during years with easterly phase of the quasi-biennial oscillation (QBO). We propose that the QBO affects the polar springtime EPP-NOx in two ways: firstly by modulating the amount of the primary NOx source, N2O, transported to the polar region. Secondly, the QBO affects the temperature of the polar vortex and thus the amount of denitrification occurring in the polar vortex, also verified from HNO3 observations from the Microwave Limb Sounder (MLS/Aura). Our results suggest that NOx produced by EPP significantly contributes to the stratospheric NO2 column at the time when the ozone hole is present in the Antarctic stratosphere. Based on our findings, we recommend that as chlorine activation continues to decrease in the Antarctic stratosphere, the total EPP-NOx should be accounted for in predictions of Antarctic ozone recovery.
Rocker : switchdev prototyping vehicle

Somewhere in Oregon, USA sfeldma@gmail.com Abstract Rocker is an emulated network switch platform created to accelerate development of an in­kernel network switch driver model. Rocker has two parts: an Qemu emulation of a 62­port switch chip with PCI host interface and a Linux device driver. The goal is to emulate capabilities of contemporary network switch ASICs used in data­center/enterprise so the community can develop the switch device driver interfaces in the kernel. The initial capabilities targeted are L2 bridging function offload and L3 routing function offload. In both cases, the forwarding (data) plane is offloaded to the switch device but the control and management planes remain in Linux. Additional capabilities such as L2­over­L3 tunneling, L2 bonding, ACL support, and flow­based networking are planned or in­progress. This paper/talk will cover an overview of, current status of, and future work on Rocker.
Evaluating the relationship between communication management practices and project outcomes: a case study of Eswatini (Swaziland) construction industry

Communication management is viewed as an imperative factor associated with performance improvement in construction projects. In Eswatini, it is established that projects experience poor project delivery associated with poor communication management practices. This study seeks to elucidate communication management practices informed by local culture and relate it to project outcome. A questionnaire survey of practitioners registered with Eswatini construction industry council was adopted for the study. Data was collected from 66 respondents. Principal axis factoring established nine practices namely; information technology, communication technology, communication skills and competence, communication management plan, teamwork, clear channels within organisation’s structure, project brief requirement management, project brief risk requirement management and context of environment as being key factors to project positive outcome. Spearman’s rho established that a relationship exists between project outcome and three practices namely; information technology, communication management plan and clear channels within organisation’s structure. The findings present key empirical evidence of the communication management practices that relate to project outcome in Eswatini. The study contributes on communication management practices in Eswatini and its relation on project outcome. Limitation of the study conclude that results and analysis cannot be generalised. However, the findings from the research provides opportunities for extensive further research recommendations to assess, refine and understand the effect of the variable’s communication management practice to project outcome.
CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil.

INTRODUCTION Worldwide urban pigeons (Columba livia domestica) are an important reservoir of pathogenic and multidrug-resistant bacteria (MDR). Plasmids are key genetic elements in the dissemination of antimicrobial drug resistance in bacteria, including beta-lactams and quinolones, which are the most important classes of drugs for treatment of Enterobacteriaceae infections in human and veterinary medicine. The aim of this study was to determine the presence of Escherichia coli (E. coli) harboring plasmids containing extend-spectrum (ESBL) and pAmpC beta-lactamases, also plasmid-mediated quinolone resistance (PMQR) genes in urban pigeons from São Paulo State, Brazil. METHODOLOGY A collection of 107 isolates of E. coli from urban pigeons from four cities was screened by antimicrobial resistance phenotypic and PCR for genes encoding ESBL, pAmpC and PMQR genes. Clonality was evaluated by ERIC-PCR. RESULTS We found three strains positive for blaCTX-M genes. In two clonally related CTX-M-8-producing strains, the gene was associated with IncI1 plasmids. An MDR strain harboring blaCTX-M-2, the plasmid could not be transferred. No strain was positive for PMQR genes. CONCLUSION These results indicate that CTX-M-2 and CTX-M-8-producing E. coli are present in urban pigeons, which could serve as a reservoir for ESBL-producing E. coli in Brazil.
Role of Village Head as Development Administrator in Mattirowalie Village Maniangpajo subdistrict Wajo District

Modernization of fishing gear usually influences the pattern of life of fishermen in various aspects especially ethics and technology used. however, it is different for fishermen in Soreang, Takalar Regency, which in the midst of modernization still maintains ancestral heritage in fishing activities. Spells or seaward rituals are still maintained today. this research aims to; Analyzing the conception of the beliefs of spells or rituals of the Soreang Fishermen community as a guide to making a living at sea in the 4.0 era. This type of research is a phenomenological research with a sociological approach to describe the activities of fishermen making a living at sea while still holding on to ethics, local beliefs that are continuously reproduced as a belief in making a living at seaThe main data collection in this study is field observations and analyzing various documents in the fishing community that are considered relevant to this research. the results showed that, the concept of spell beliefs and rituals was continuously reproduced as a belief capable of surviving and being the driving force of the fishing community in carrying out seagoing activities until the 4.0 era Keywords— Ritual, Spell, Fisherman, Soreang
OCTOPUS Online Collaborative TOll card sharing PUblic System

—We present O CTOPUS , an internet based system that allows users to voluntarily share prepaid “aller-retour” toll cards of limited lifetime or/and use a car pooling service. Users have to register and provide details about the resource they either possess or wish to make use of. O CTOPUS is then responsible for processing and matching user requests utilizing geographical information also allowing users to select their matching members just using their smartphone or any mobile device with an internet connection. O CTOPUS is yet another proof of concept that internet and the web can actually promote resource sharing for social welfare in our modern society.
Improving Long Short-Term Memory Predictions with Local Average of Nearest Neighbors

The study presented in this paper aims to improve the accuracy of meteorological time series predictions made with the recurrent neural network known as Long Short-Term Memory (LSTM). To reach this, instead of just making adjustments to the architecture of LSTM as seen in different related works, it is proposed to adjust the LSTM results using the univariate time series imputation algorithm known as Local Average of Nearest Neighbors (LANN) and LANNc which is a variation of LANN, that allows to avoid the bias towards the left of the synthetic data generated by LANN. The results obtained show that both LANN and LANNc allow to improve the accuracy of the predictions generated by LSTM, with LANN being superior to LANNc. Likewise, on average the best LANN and LANNc configurations make it possible to outperform the predictions reached by another recurrent neural network known as Gated Recurrent Unit (GRU).
DIGRA 2005 1 Games and Simulations: theoretical underpinnings

1 Games and Simulations: theoretical underpinnings Louise Sauvé Lise Renaud et David Kaufman Télé-université / SAVIE, 455 rue de l’Église, C.P. 4800, succ. Terminus, Québec (QC), GIK 9H5, lsauve@teluq.uquebec. ca Université du Québec à Montréal, Case postale 8888, succursale Centre-ville, Montréal (Québec) H3C 3P8, renaud.lise@uqam.ca Simon Fraser University, 8888 University Drive,Burnaby, BC, V5A 1S6, dkaufman@sfu.ca