Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimized Multi-Core Parallel Tracking for Big Data Streaming Applications

Article history: Received: 12 December, 2020 Accepted: 19 March, 2021 Online: 28 May, 2021 Efficient real-time clustering is a relevant topic in big data streams. Data stream clustering needs necessarily a short time execution frame with bounded memory utilizing a one-scan process. Because of the massive volumes and dynamics of data streams, parallel clustering solutions are urgent. This paper presents a new approach for this trend, with advantages to overcome the main challenges of huge data streams, time, and memory resources. A framework is proposed reliant on a data clustering parallel implementation that divides most recent incoming data streams within a sliding window mechanism to distribute them across a multi-core structure for processing. Every core is responsible for the processing and generation of intermediate micro-clusters for one data partition. The resulting micro clusters are consolidated utilizing the additive property of the micro-cluster data structure to merge those parallel clusters and obtain the final clusters. The proposed approach has been tested on two sorts of datasets: KDD-CUP’99 and KDD-CUP’98. The results show that the proposed optimized parallel window-based clustering approach is efficient for online cluster generation for big data streaming with regard to the performance measures processing time and scheduling delay. The processing time is 1.5 times faster, and the scheduling delay is approximately between 1.3 to 1.7 times less than the sequential implementation. Most important is that the clustering quality is equal to that of the nonparallel implementation.
PROCRASTINATION AND SELF-CONCEPT IN MORE/LESS CONSCIENTIOUS STUDENTS

Given its significant negative consequences for university students, procrastination has been studied extensively and shown to be associated with conscientiousness as a personality trait. Involving 333 university students doing teacher training programmes (68.5% female; Mage=20.51 (SD=1.61); 83.48% undergraduates doing a bachelor’s degree), our study aimed to explore the association between procrastination among more/less conscientious students and selected self-concept variables (self-control, self-efficacy, etc.). Our questionnaire was based on the Ten-Item Personality Inventory (Gosling, Rentfrow, Swann, 2003), the Self-Control Scale (Finkenauer, Engels, Baumeister, 2005), the Self-efficacy Scale (Kočš, Hefteyova, Schwarzer, Jerusalem, 1993), and the Procrastination Scale for Student Populations (Gabrhelík, 2008); our control variables were gender and wellbeing (Subjective Well-Being Scale, Chan-Hoong, Soon, 2011). The sample was divided into two groups – (1) less conscientious and (2) more conscientious) – using the method of visual binning in SPSS 20. A t-test for independent samples and linear regression were used for data analysis. The less conscientious students in our sample reported a higher level of procrastination (t=6.479; df=310; p˂0.001; Cohen's d=0.681). A linear model was conducted for both groups (the dependent variable being the level of procrastination, the independent variables being gender and the levels of self-control, self-efficacy, and well-being). Both models were significant ((1) F=8.449; p˂0.001; R2=32.6; (2) F= 7.277; p˂0.001; R2=25.7). Among the less conscientious students, the levels of self-control (β=-0.546; t=-5.262; p˂0.001) and self-efficacy (β=-0.238; t=-2.092; p˂0.001) were negatively associated with procrastination. Among the more conscientious students, the level of self-control (β=0.404; t=-3.929; p˂0.001) was negatively associated with procrastination and “being a man” (0–man; 1–woman) (β=-0.307; t=-3.219; p˂0.05) was significantly associated with the level of procrastination. The results of our study show trait and personality differences in the level of procrastination, highlighting the importance of self-control and self-efficacy development among university students. Interactive programmes with an impact on students’ self-concept can be a significant contribution to students’ ability to cope with their study requirements effectively. It could be argued that the limits of this study include cross-sectional and self-reported data.
Crystal structure and nonlinear optical properties of KSnOPO4and their comparison with KTiOPO4

Crystals of KTiOPO4 (potassium titanyl phosphate, KTP) and its tin analogue KSnOPO4 (potassium stannyl phosphate, KSP), were grown and characterized for their structural and nonlinear optical properties. The crystal structure of KTiOPO4 [Mr = 197.97, orthorhombic, space group Pna21 (C90, a = 12-819(3), b=6"399(1), c = 10.584 (2) A, V = 868" 1 A3] was refined to an R factor of 2.5% from room-temperature single-crystal X-ray data. Using the refined coordinates, a model for the centrosymmetric prototype phase with suggested space group Pnan (D6h) is constructed. From this model, the magnitude and direction of the spontaneous polarization developed in the room-temperature crystal structure are calculated. The crystal structure of KSnOPO4 [Mr= 268"76, orthorhombic, space group Pna21, a=13"145(3), b=6"526(2), c = 10.738 (3)A, V = 921-1 /~3] was determined at room temperature by single-crystal X-ray diffraction and is shown to be isostructural with KTiOPO4. Certain differences in the details of the crystal structures of KSP and KTP are, however, very pronounced. In particular, in KSP, the oxygen framework approximates very closely to a centrosymmetric arrangement and the Sn coordination octahedra are much less distorted than their TiO6 counterparts so that anomalously shortened Sn--O bonds equivalent to the very short (1.716 and 1.733 A) Ti--O bonds in KTP do not appear. The principles of bond polarizability theory and the structural data are used to correlate the structural differences between KTP and KSP with the fact that the second-harmonic generation output for KSP is only 2% of that shown by an equivalent KTP sample. The results demonstrate further proof that the short Ti--O bonds in KTP are the important structural features leading to the high optical nonlinearity of this material.
The Influence of Regular Hemodialysis on the Highly Sensitive Troponin-I Level in Children without Any Symptoms

Backgrounds: Cardiovascular diseases are still the prominent cause of death in cases of end-stage renal disease, cardiac troponin I (cTnI) can be used for detecting cardiac involvement in asymptomatic cases of end-stage renal disease on hemodialysis. Aim: Determine the direct cardiac consequence of dialysis treatments in children on hemodialysis by measuring high-sensitive troponin-I as a marker of myocardial injury. Subjects and Methods: This case-control study included thirty children with end-stage renal disease on regular hemodialysis; the study group was selected from the nephrology hemodialysis unit of Al-Zahraa Hospital, Al-Azhar University. Another group of thirty healthy children matches age and sex with the patient’s group as a control. Highly Sensitive cTnI (hsTnI) was measured pre and post hemodialysis with a sensitive assay; moreover, ECG, lipid profile including cholesterol, triglyceride, low and high-density lipoprotein (HDL) in the same line with routine investigations for those patients, we used bioimpedance for dry weight assessment in the hemodialysis (HD) group. Results: Children on (HD) have a significantly higher (hsTnI) pre-dialysis (0.250 ± 0.069 ng/ml) compared to post-dialysis (0.187 ± 0.004 ng/ml) with (p, 0.001). With no significant difference between post HD (0.187 ± 0.004 ng/ml) and the control group (0.189 ± 0.005) with (p, 0.090). cTnI is detected in (73.3%) of children pre-dialysis above the cut-off value compared to (3.31%) had a high-level post-dialysis. cTnI is positively correlated with systolic, diastolic blood pressure and heart rate with (r. 0.333, p, 0.001: r. 0.343, p, 0.001: r. 0.276, p, 0.033) respectively and (hsTnI) is negatively correlated with Hb and HDL (r. -0.333, p, 0.009: r. 0.324, p, 0.011). Meanwhile (hsTnI) is positively correlated with serum urea, creatinine, ph, PTH, serum ferritin and positively correlated with QT interval and QTC. Conclusion: cTnI levels rise significantly before hemodialysis, so those patients are exposed to silent myocardial injury pre HD, and fortunately, it is not persistent after hemodialysis except for a few of them had a high level. We strongly advised not to delay dialysis appointments; the nephrology team should aggressively treat those patients to prevent further myocardial damage.
The Successful Resuscitation in a Neonate with Down Syndrome after 45 minutes: A Case Report

Introduction: Patients with Down syndrome (DS due to relative macroglossia and dynamic airway collapse) are vulnerable to significant upper airway complications. Obstructive sleep apnea (OSA) is a common condition and noted in about 79% of these children . Children with OSA, with or without DS, are sensitive to respiratory depression by drugs such as sedatives, opioids and hypnotics. Abnormalities of the cardiovascular system are also common in Down syndrome. Case Report: A nine_ day old male preterm newborn with DS (e.g. gestational age of 35 weeks) was brought to operation room (OR) for insertion of central venous line and surgery of duodenal atresia. During transportation to NICU, in OR he arrested and then after 45 minutes resuscitation, he returned to life. Conclusion: The placement of CVL could precipitate triggers of cardiac arrest, particularly in preterm newborn.
Affective Polarization and Support for the U.S. Supreme Court

Support for the U.S. Supreme Court does not appear to be polarized on ideological or partisan lines. However, the form of polarization for which the mass political behavior field has amassed substantial support is affective in nature. We reconsider the hypothesis that polarization does not bear on Court support by examining the role of affective polarization. Using three sources of nationally representative survey data, we consistently find a negative relationship between affective polarization and both diffuse and specific support for the Court. Moreover, neither general nor Court-specific political sophistication mitigates the negative effect of affective polarization; rather, sophistication exacerbates affective polarization’s influence on support. Finally, panel data show that affective polarization precedes negative evaluations of the judiciary, though there is no support for the converse relationship. Evaluations of the Court are not free from the forces of polarization but are influenced by diverging extra-judicial emotional orientations toward in- and out-groups.
Including cold-start emissions in the Real-Driving Emissions (RDE) test procedure: An assessment of cold-start frequencies and emission effects

We document two independent analyses that were conducted to support the inclusion of cold-start emissions in the Real-Driving Emissions (RDE) test procedure. First, we present the results of a scoping review on cold-start frequencies and trip distances in Europe. Second, we present a scenario analysis that aims to quantify the impact of modifications in the RDE data pre-processing and evaluation on the calculated NOX emissions over the urban part of an on-road test. We find that some 27 ± 5% of trips in Europe may contain a cold start. The driving distance between two consecutive cold starts reaches 36 ± 16 km (mean) and 30 ± 13 km (median), respectively. Our scenario analysis suggests that a simple inclusion of cold start into the regulatory RDE data evaluation procedure may not capture cold-start NOX emissions in a robust manner. However, combining modifications of the RDE data pre-processing and the RDE data evaluation can capture at least part of the incremental cold-start NOX emissions. A more systematic assessment of European driving data and an expansion of the scenario analysis presented here could substantiate the findings of this report.
Study of the Surface and Dimensional Quality of the AlSi10Mg Thin-Wall Components Manufactured by Selective Laser Melting

Additive manufacturing (AM), a 3D printing technique that manufactures components by sequential addition of powder, has massively reshaped the manufacturing and engineering sectors from batch production to manufacturing customized, innovative, state-of-the-art, and sustainable products. Additive manufacturing of aluminum alloys by selective laser melting (SLM) is one of the latest research trends in this field due to the fact of its advantages and vast applications in manufacturing industries such as automobiles and aerospace. This paper investigated the surface and dimensional quality of SLM-built AlSi10Mg parts using a response surface method (RSM) and found the influence of the wall thickness and process parameters (i.e., laser power, scanning speed, hatch distance) on the pieces. Thin-walled test specimens of AlSi10Mg alloy were manufactured with different combinations of process parameters at three wall thicknesses: 1.0 mm, 2.0 mm, and 3.0 mm. The Minitab DOE module was used to create 27 different configurations of wall thickness and process parameters. The samples’ surface roughness and dimensional accuracy were investigated, and the findings were evaluated using the ANOVA technique. The regression model and the ANOVA technique showed high precision and had a particular reference value for practical engineering applications.
Improvement of Football Match Score Prediction by Selecting Effective Features for Italy Serie A League

Football is one of the most popular sports in terms of number of fans in the world. This situation arises from the unpredictable nature of football. People are becoming more and more connected to this sport as it combines emotions such as excitement and joy that it creates in people. Match result prediction is a very challenging problem, and recently the solution to this problem has become very popular. With the result of this unpredictable game the events that occur during the match that affect this result are tried to be predicted by machine learning methods. This study demonstrates our work on finding the most effective features in match result prediction using match statistics from the Italian Serie A League's 2027 pieces match between the 2014-2015 and 2019-2020 seasons and with 54 features for each match. Feature selection testing was conducted to estimate the results of a football match and determine the most important factors. The selection of features was made using the ANOVA method and it was predicted that 28 of the 54 features would be effective in predicting match results. After this stage, fairly high rates classification success was achieved using the logistic regression method. 88.85% as a result of the prediction made with all features and 89.63% success was achieved as a result of the prediction made with 28 selected features. With these results, it is possible to say that process of feature selection increase success in match result prediction.
The Land Use Pattern of National Capital Region Delhi Using Geo-informatics

This paper presents the identified four satellite towns around Delhi mega city, namely Gurgaon, Ghaziabad and Gautam Budh Nagar included Noida and Greater Noida, which are well populated and connected with urban core Delhi. Furthermore, the population growth and its impact on Land Use Changes of Delhi and its surrounding towns were considered for the study. The rates of growth of these cities were analyzed through census and multi temporal high-resolution satellite data. The decadal growth rate of Delhi and Gurgaon was more than 50 per cent during 1941-81, and 26.83 and 44.25 in 2011. Similarly in Ghaziabad it was more than 60 per cent during 1951-2011 whereas the Gautam Budh Nagar, shows the rapid growth, 237.10, 269.10, 80.80 and 116.70 during 1981-2011. The impact of this growth has shown in the form of land use changes. The built-up land increased by 8.10 km2 per annum in Delhi, 0.92 km2 in Gurgaon, 4.80 km2 in Ghaziabad and 13.03 km2 in Gautam Budh Nagar whereas, the agricultural land, decline by 7.35 km2, 0.86 km2, 5.45 km2 and 11.60 km2 per annum in this cities. The decadal rate of population growth and land use changes is higher in Gautam Budh Nagar, followed by Delhi, Ghaziabad and Gurgaon. The findings of this study would provide insight to the planners and policy makers for the management of urban land in the field of growth related problems of the city regions.
Harmonic and anharmonic properties of spinel MgAl2O4

Abstract The resonant sphere technique, RST, was applied to measure the elastic moduli of spinel. Resonant frequencies of 23 modes were measured between 293 and 1167 K. Results are similar to previous measurements by two of the authors (IS and OLA) using a rectangular prism specimen in that resonant frequencies of all modes decrease with temperature, and some modes show discontinuous change of slopes near 904 K. In the present work, inversion calculations of the frequency data to obtain elastic moduli was repeated until the standard error, s, was minimized so that s = 0.16 kHz (0.012%). Elastic moduli and their probable errors in GPa are: C11 = 281.310 ± 0.014, C12 = 155.437 ± 0.013, C44 = 154.587 ± 0.007, and Cs = 62.936 ± 0.003, where density p = 3.5846 g/cm3 at 293 K. The anisotropy factor is A = C44/Cs = 2.46 and is much larger than that of other cubic crystals. Isotropic properties are: bulk moduli, KS = 197.39 ± 0.01 GPa; isothermal bulk modulus, KT = 196.20 GPa; and rigidity modulus, μ = 107.81 GPa (the Hill average). Temperature dependence was clarified for elastic moduli in which one of shear moduli, Cs [= (C11 - C12)/2] shows a distinctive bend at Tc = 904 K. The bend in KS [ = (C11 + 2C12)/3] at Tc is less pronounced because of opposite changes of slopes for C11 and C12 at 904 K. Combining elasticity and thermal expansivity data, we evaluate anharmonic parameters, resulting in the Grüneisen parameter, γ = 1.17, and the Anderson-Grüneisen parameters, δS = 2.98 and δT = 4.72 at T = 300 K; whereas, these are parameters are 1.10, 4.46, and 6.37, respectively, at T = 1200 K. The Grüneisen parameter is about 0.1 lower on the high-temperature side of Tc compared to its value on the lowtemperature side
Risk Associated with Immediate Implant at Mandibular Canine and Premolars: A Cone Beam Computed Tomography (CBCT) Study

With the evolution of implant dentistry, immediate implantation remains a challenge especially in achieving a good primary stability with avoidance of complications such as nerve injuries and lingual perforations. This study was aimed to determine the risks of nerve injury and lingual perforation following virtual implant placement at mandibular canines, mandibular first premolars and mandibular second premolars using cone beam computed tomography (CBCT) scans. From the total of 771 CBCT scans screened, 100 CBCT scans were included. Measurements were made based on the cross-section of the study teeth, that were mandibular canine, first premolar and second premolar, to obtain the distance between root apex and nerve canal as well as risk of nerve injury. A virtual implant was then placed at each site to assess the risk of lingual perforation. Generally, the distance between root apex and nerve was less than 6 mm and the highest risk of nerve injury was observed at second premolar (79.6%) followed by first premolar (45.3%) and canine (23.4%). Risk of lingual perforation following immediate implant placement was between 0.7-1.5%. The risk of nerve injury was considerably high due to insufficient root apex to nerve canal distance while the risk of lingual perforation was low.
President Obama and the Emergence of Islamophobia in Mass Partisan Preferences

This article argues that the unusually large and persistent association between Islamophobia and opposition to President Obama helped make attitudes about Muslims a significant, independent predictor of Americans’ broader partisan preferences. After detailing the theoretical basis for this argument, the article marshals repeated cross-sectional data, two panel surveys, and a nationally representative survey experiment, to test its hypotheses. The results from those analyses show the following: (1) attitudes about Muslims were a significantly stronger independent predictor of voter preferences for congress in 2010–2014 elections than they were in 2004–2008; (2) attitudes about Muslims were a significantly stronger independent predictor of mass partisanship during Obama’s presidency than they were beforehand; and (3) experimentally connecting Obama to Democratic congressional candidates significantly increased the relationship between anti-Muslim sentiments and Americans’ preferences for Republican congressional candidates. The article concludes with a discussion of the implications of these results for American politics in the Trump era.
Effects of Calcitonin Addition on Epidural Injection in Patients with Degenerative Spinal Canal Stenosis: A Randomised Double Blind Clinical Trial

Abstract Objective: Back pain is reported to be the fifth most common reason for referral a patient to a physician and the most common disability in modern society. The present study aimed to evaluate the effects of calcitonin addition on epidural injection in patients with degenerative spinal canal stenosis in comparison with epidural triamcinolone injection. Methods: This clinical trial study was performed on 40 patients with degenerative spinal stenosis, referred to pain clinic of Rasoul Akram Hospital in 2018, who were randomly divided into two groups, intervention and control groups, including 20 individuals in each group. In the intervention group, 50 units of calcitonin were injected with 8 cc of ropivacaine 0.2%, whilst 80 mg of triamcinolone with 8 cc of ropivacaine 0.2% was injected in the control group. Functional disability was evaluated based on the Oswestry Disability Index and pain ratings were assessed using the Visual Analogue Scale. Results: Pain at 4 and 8 weeks after the procedure was significantly different between the two groups. A significant difference in the patient disability index was observed between the two groups at 8 and 12 weeks after the procedure. On the other hand, the rate of analgesic consumption at 4, 8, and 12 weeks after the procedure was significantly decreased in the calcitonin group (P < .001). Conclusions: Based on our results, injection of calcitonin into the epidural space can reduce the pain of the patients and their analgesic consumption compared to the group receiving steroids through the epidural space.