Miracle-dz/UniFAR-FTUs huggingface dataset:
Mobile learning design and development to develop student decision making skills in social emotional learning process

Article Info ABSTRACT Article history: Received Jan 04, 2021 Revised Feb 05, 2021 Accepted Feb 21, 2021 The development of technology and education is a set of two inseparable things. In education, technology affects both the learning process and the interaction between teacher and students. This condition poses a challenge for teachers, students, and schools to prepare innovative and exciting learning strategies so that the learning process runs optimally. This research aims to develop mobile learning as a learning medium in education. The research uses Research and Development Method with the ADDIE development model. The data collection method utilizes Social-Emotional in Learning Questionnaire previously tested for its validity and reliability to 30 students in Tangerang, Indonesia. The data analysis technique used is Pearson productmoment in quantitative approach. The results of this study reveal that there are 20 valid items of the SEL Questionnaire in addition to a model of mobile learning to equip decision making skill as one of the Social-Emotional skills needed in the 4.0 industrial revolutions. The model consists of 4 parts: pretest form, contents about decision-making skill, case study, and evaluation form. This research provides an alternative approach based on technology to enhance students' decision-making abilities in guidance and counselling services. Keyword: Mobile learning Decision-making skills Social-emotional learning Students
Buckley–Leverett Theory for a Forchheimer–Darcy Multiphase Flow Model with Phase Coupling

This paper is dedicated to the modeling, analysis, and numerical simulation of a two-phase non-Darcian flow through a porous medium with phase-coupling. Specifically, we introduce an extended Forchheimer–Darcy model where the interaction between phases is taken into consideration. From the modeling point of view, the extension consists of the addition to each phase equation of a term depending on the gradient of the pressure of the other phase, leading to a coupled system of differential equations. The obtained system is much more involved than the classical Darcy system since it involves the Forchheimer equation in addition to the Darcy one. This model is more appropriate when there is a substantial difference between the phases’ velocities, for instance in the case of gas/water phases, and applications in oil recovery using gas flooding. Based on the Buckley–Leverett theory, including capillary pressure, we derive an explicit expression of the phases’ velocities and fractional water flows in terms of the gradient of the capillary pressure, and the total constant velocity. Various scenarios are considered, and the respective numerical simulations are presented. In particular, comparisons with the classical models (without phase coupling) are provided in terms of breakthrough time among others. Eventually, we provide a post-processing method for the derivation of the solution of the new coupled system using the classical non-coupled system. This method is of interest for industry since it allows for including the phase coupling approach in existing numerical codes and software (designed for solving classical models) without major technical changes.
How to Use Computer New Media Technology to Reform and Innovate the Integration Mode of Sports and Education in Colleges and Universities

With the development of the times, information technology has been a great improvement. Nowadays, computer technology is developing at a particularly fast pace, at the same time, the supporting software hardware is also gradually improving. With the development of science and technology, China’s economic level has been greatly developed, but because of the imbalance of physical education in domestic education, the reform of physical education in our country’s colleges and universities is inevitable. Therefore, the purpose of this paper is to use computer new media technology to reform and innovate the integration mode of physical education in colleges and universities. We first look up the new media technology of computer, and then use the algorithm construction system to simulate the fusion mode of physical education in colleges and universities, and calculate the results. Then carry on the offline experiment. By looking for the experimental group to carry out real experiments, we get the experimental data we need to infer the experimental results. The experimental results show that by using the new media technology of computer, some reform and innovation can be carried out on the integration mode of physical education in colleges and universities, and the resistance is small and easy to accept.
Protein Structure and Function Prediction of SARS-CoV 2: Prospective Antivirus Active Drug Binding Sites

Today a newly emerged corona-virus known as SARS-CoV 2 has become a cause of global health concern and took away the lives of large number of people throughout the world. Corona-viruses are the enveloped virus with positive single stranded genome of 26.4 to 31.7 kb. Envelop of the corona-virus is made up of four structural proteins namely envelop protein (E), membrane protein (M), spike protein (S) and nucleocapsid protein (N). These four proteins are responsible for the overall shape and size of the virus (structure of virus). Envelop protein forms ion channels, membrane protein is responsible for the shape of the virus, spike protein is responsible for the entering inside the target host cell by binding to host receptor and nucleocapsid protein binds to the single stranded RNA genome of the virus forming multiple copies. We investigate the reliability and homogeneity among all the corona-virus species such as MERS CoV, Bat-CoV HKU4, Transmissible gastro-enteritis coronavirus (TGEV), Porcine epidemic diarrhea virus (PEDV), HCoV-229E and Whale-CoV SW1, M-CoV, Hedgehog coronavirus 1, Bulbul-CoV HKU11 etc, using a binary graph which is helpful in the findings of sequence reliability, secondary and tertiary structure model prediction using advanced model builder, we build the model of various protein/gene products by selecting them from SARS-COV 2, which further helpful in the finding of target-ligand binding for future therapeutic applications. Consequently by modeling the structure of the proteins we bring into being that envelop protein have pentameric protein lipid pores that allow ion transportation and were able to depict the active drug binding sites.
Catalyseurs sans métaux nobles pour pile à combustible régénérative

Le dihydrogene (H2) se presente comme le futur vecteur energetique pour une economie basee sur des ressources propres et respectueuses de l'environnement. Il est le combustible ideal de la pile a combustible regenerative constituee de deux entites : un electrolyseur pour sa production, et une pile a combustible pour sa conversion directe en energie electrique. Ce systeme presente l'avantage d'etre compact et autonome. Cependant, l'amelioration de l'activite catalytique des materiaux, leur stabilite et l'elimination de metaux nobles dans leur composition sont necessaires. Des catalyseurs bifonctionnels a base de metaux de transition associes au graphene ont alors ete synthetises. L'interaction oxyde-graphene a ete etudiee sur un catalyseur Co3O4/NRGO. A faible teneur en cobalt, l'interaction entre les atomes de cobalt de l'oxyde et les atomes d'azote greffes sur les plans de graphene a ete observee par voltammetrie cyclique. Cette interaction est responsable d'une diminution de la taille des nanoparticules de cobaltite et de l'activite de celles-ci vis-a-vis de la reaction de reduction du dioxygene (RRO). La substitution du cobalt par le nickel dans des structures de type spinelle (NiCo2O4/RGO) obtenu par voie solvothermale, a permis d'ameliorer les performances electrocatalytiques vis-a-vis de la RRO et de la RDO. Ce materiau et un autre de type Fe-N-C prepare en collaboration avec un laboratoire de l'Universite Technique de Berlin ont servi de cathode dans des etudes preliminaires realisees en configuration pile a combustible alcaline a membrane echangeuse d'anion (SAFC).
Multi -Response optimization of Electric Discharge Machining (EDM) process parameter for Aluminum based Hybrid Metal Matrix Composite using GRA

Aluminum based hybrid metal composite (MMC) have been applied to many various applications in the area of automobiles and aerospace. This research article shows the multi-response optimization of EDM of process parameter for Aluminum based metal matrix hybrid composite (Aluminum 6061/Al2O/TiO2). The optimum process parameter of EDM as like pulse on time (Ton), current (Ip), duty cycle (t), voltage (V) on material removal rate and surface roughness were investigated. Hybrid Aluminum metal matrix composite was machined by using tool which is made of copper materials, of ϕ12 mm for experimentation. The mechanical stirring procedure is used to fabricate the hybrid MMC. The design of experiments was conduct through the Response Surface Methodology (RSM). The experimental result declares that the main influencing input parameter is current.
Structural, morphological and electrical properties of chitosan/methylcellulose blend polymer doped with different concentrations of NH4NO3

Polymer blend electrolytes based on chitosan: methylcellulose loaded with ammonium nitrate (NH4NO3) were fabricated by solution cast method and characterized by XRD, FTIR, EIS, FESEM, and TNM techniques. XRD is used to show the decrease of the crystalline structure. FTIR method is used to confirm the interaction between electrolyte elements. The maximum room temperature DC conductivity of 3.54 × 10−4 S cm−1 is provided by the highest conducting system using EIS data. The FESEM method showed that the morphology of the film has a uniform smooth surface at the highest salt concentration. This is in good agreement with the XRD, FTIR, and EIS results. The dielectric constant is high at the low frequency region due to electrode polarization. Transference number measurement (TNM) is used to show the dominant charge carriers. The values of the transference number of electron (telectron) and ion (tion) showed that the ions are dominant. The TNM measurement shows the compatibility of the system for electrochemical energy storage device application.
Flexible three-dimensional force sensor of high sensing stability with bonding and supporting composite structure for smart devices

Characteristics, such as large measurement range, good repeatability and stability, are the guarantee for a wide application of flexible three-dimensional force sensors in robots and other smart devices. In this research, a flexible three-dimensional force sensor is presented, whose structure includes force-sensitive cells, fixed under the bump and a support layer, filled around the force-sensitive cells. This setup allows the sensor to quickly recover, after the force is released, to ensure its excellent performance. The production method is very simple and has the advantage of large-scale and low-cost manufacturing. The sensor exhibited good repeatability and stability, after 25 000 cycles of loading and releasing, under 8 N force. Meanwhile, it has a large measuring range, which is 0–15 N in the direction of normal force and 0–5.5 N in the direction of shear force. The sensitivity of the sensor in the x, y, and z directions is 1.5321 V−1 N−1, 1.501 29 V−1 N−1, and 0.936 87 V−1 N−1, respectively. The load response time of the sensor is 33 ms and the unload recovery time of 18 ms. Regarding practical applications, the sensor shows good prospects. For example, the sensor and its array can be installed on the manipulator to sense the magnitude and location of the three-dimensional force; in the case of the flexible smart keyboard, the presented sensor array can save space significantly and recognize multiple specific input features, in order to enhance information security; while as a car controller, it is multi-functional integrated and portable, thus showing great potential as replacement to the traditional operating methods.
Research on the Function of Computer Aided Teaching in College Physical Education

With the rapid iteration of computer information technology and the application of CAI in college physical education teaching, the physical education teaching mode has developed from the empirical and theoretical teaching mode to the scientific and digital direction, and the physical education teaching has played a significant function in stimulating students’ learning initiative and promoting the promotion of students’ subjective status, so it has important research value. Based on this, this paper first analyses the necessity of CAI application in college physical education teaching, then studies the application function and status quo of CAI in college physical education teaching, and finally puts forward suggestions and Countermeasures for the application of CAI in college physical education.
UNSUPERVISED REAL-TIME DIAGNOSIS SYSTEM FOR ECG STREAMING DAT

Detecting anomalies in time series data plays a vital role in the various applications of diagnosis systems. The importance of anomaly detection is increased by its ability to detect abnormalities in Electrocardiogram (ECG) signals to generate alerts for cardiac health problems. An ECG is a time series that provides essential information about the electrical activity of the heart and is used in the diagnosis of numerous heart diseases. An accurate ECG streaming analytics approach requires continuous learning and adaptation in changing data behaviors. We aim to diagnose ECG by investigating healthy ECG and ECG with cardiological disorders by detecting anomalies in ECG signals. The main objective of this paper is to develop an efficient unsupervised diagnosing system for ECG streaming data based on an online sequence memory algorithm called Hierarchical Temporal Memory (HTM). The HTM is based on neural network and machine learning algorithm for continuous learning tasks. The proposed customization of the HTM algorithm based on our problem domain provides a significant performance results of detection of anomalies in the ECG signals.
Bark characterization of Tachigali guianensis and Tachigali glauca from the Amazon under a valorization perspective

Barks of Tachigali guianensis and Tachigali glauca, from the Brazilian Amazon rainforest, were studied regarding anatomy and chemical composition. The barks were similar, with a narrow rhytidome, a ring of sclerified cells below the periderm, a widely dilated and sclerified nonconducting phloem, septate crystal strands, and extensive phenolic deposits in cells. Differences between the species were mainly in the sclerenchyma. Proportions of cell types in the T. guianensis and T. glauca barks were, respectively: 27.8% and 28.3% axial parenchyma, 15.6% and 15.1% sieve tube elements, 11.6% and 13.4% radial parenchyma, 15.6% and 8.7% sclereids, and 30.5% and 34.5% fibers. Chemical analysis showed that the T. guianensis and T. glauca barks included, respectively: 18.0% and 15.3% extractives, 1.8% and 1.0% suberin, 26.8% and 27.9% lignin, and 3.5% and 4.5% ash. The predominant polysaccharides were glucose (72.8% and 82.8% of total neutral sugars) and xylose (17.9% and 11.6%). Ethanol-water extracts were high in phenolics (total phenolics of 441.0 mg gallic acid equivalents (GAE) / g extract and 641.7 mg GAE / g extract), with moderate antioxidant activities (IC50 values of 7.3 g extract / mL and 5.6 g extract / mL). Tachigali guianensis bark and, particularly, T. glauca bark may be sources of phenolic compounds.
Leveraging social protection to advance climate-smart agriculture: evidence from Malawi

In many developing countries the adoption of climate sustainable practices is hindered by resource and risk barriers. This paper assesses the interactions between participation in Malawi’s largest public works programme, the Malawi Social Action Fund (MASAF), and three widely promoted climate-smart agriculture (CSA) practices. The underlying hypotheses to be tested are: (a) that participation in the MASAF programme reduce both the budget and the risk constraints to the adoption of sustainable management practices; and (b) the joint treatment effect of MASAF and CSA increases household farms’ productivity and welfare. Drawing on three waves of national panel household survey data, we find that participation in MASAF significantly increases the probability that farm households adopt all the CSA practices considered for this study.
BARE PASSIVE AGENT HIERARCHY*

This paper shows that the strict restriction on bare passive agents reported in Standard Indonesian does not apply to most languages that have bare passives. An implicational hierarchy of possible bare passive agents is proposed. The selected means of licensing the agent accounts for the observed cross-linguistic variation. Languages higher on the hierarchy employ head-head adjacency in place of case licensing.
Trajectory tracking control of a mobile manipulator with an external force compensation

This paper considers the problem of the accurate task space finite-time control susceptible to both undesirable disturbance forces exerted on the end-effector and unknown friction forces coming from joints directly driven by the actuators as well as unstructured forces resulting from the kinematic singularities appearing on the mechanism trajectory. We obtain a class of estimated extended transposed Jacobian controllers which seem to successfully counteract the external disturbance forces on the basis of a suitably defined task-space non-singular terminal sliding manifold (TSM) and the Lyapunov stability theory. Moreover, in order to overcome (or to minimise) the undesirable chattering effects, the proposed robust control law involves the second-order sliding technique. The numerical simulations (closely related to an experiment) ran for a mobile manipulator consisting of a non-holononic platform of (2,0) type and a holonomic manipulator of two revolute kinematic pairs show the performance of the proposed controllers and make a comparison with other well-known control schemes.
ELLIPTIC REGULARITY AND HOLOMORPHIC FUNCTIONS

We first derive from the Cauchy-Riemann equations that the real and imaginary parts of a holomorphic functions are weak solutions of ∆u = 0. This is a striking difference between holomorphic functions and real differentiable functions from R2 to R2. This leads us to explore the regularity of uniformly elliptic PDEs since ∆u = 0 is the prototype of this family. We first prove continuous weak solutions of ∆u = 0 are smooth then use the spectral theorem to deduce its true for elliptic constant coefficient PDE. Then we characterize the decay of integrals with Cα regularity and deduce enough estimates from elliptic constant coefficient PDE to obtain Cα regularity for a large class of uniformly elliptic PDEs via a perturbation argument known as Schauder’s Estimates.
Typosquatting Potential on the Official Website (An Empirical Study of Popular Webites in Indonesia)

At the time of typing the website address (URL), the users often make mistakes (typos) that are unable to visit the desired website. The situation becomes worse when the wrong URL pointing to other websites that do not wish to be visited by the user and may be made available for the aim of cyber-crime. This condition is called Typosquatting. Typosquatting is often used to carry out dangerous cyber-attacks. Research conducted will focus on the potential Typosquatting popular website domain in Indonesia based on Similar web and Alexa rankings. The purpose of this research is to determine the potential for Typosquatting attacks on the popular website domain. Potential observation for Typosquatting was carried out using the Domain Security Test owned by Immuniweb. The result obtained from observation is the number of active domains contained in Typosquatting potential domain has a percentage of 90 % and 26 % potential domain of Typosquatting visited by the users. The most identified Typosquatting model is substitution and addition, meanwhile the most widely used of the website purpose is Hit Stealing and Parking Domain / For Sale. The letters on the left and right of the type target letter have the potential to be more often cause typo if it is compared to the letters which are above and below the type target letter.
Implementation of a Group-Based Verification Mechanism for Secure M2M Communications

: The M2M communication is a technology that can use both reliable and unreliable communication mechanism. We propose an efficient and group based strict verification mechanism for machine-to-machine (M2M) networks. The smart objects in a M2M networks are able to gather and enrich a wide variety of information from a resource constrained environments. And are also interacting with the components in a unconstrained environment without human involvement. The proposed scheme is used to allow any group of smart objects in an M2M environment authenticates mutually by sharing a common secret element (key) for exchanging information in a protected manner. The verification method purely based on mutual agreement among the smart objects/M2M nodes in an environment and there is no involvement of any service provider. The authentication process is coordinated among the smart objects and the gateway with the supervision of the service provider. The proposed mechanism requires the smart objects can obtain a secret session key generated by the service provider and group identity. Using this information, any smart object can authenticate with the gateway and with other objects in the network at home location as well as foreign location. The scheme uses only secret keys and there in no involvement of public keys. Hence it is suitable for resource constrained devices. The proposed scheme is also verified by using SPIN logic, a widely used verification tool.