Miracle-dz/UniFAR-FTUs huggingface dataset:
Cyberbullying and Psychopathological Behaviors in Spanish Secondary Education Students

Cyberbullying is considered a serious health problem that mainly affect adolescents, with different characteristics depending on the role in which they are directly involved. The objective of our research was to analyze the sociodemographic characteristics and psychopathological behaviors among the roles of those involved in cyberbullying (victims, aggressors, bystanders and aggressive victims). The study participants were 280 students aged between 12 and 17 years (61.8% female) from the Region of Murcia, Spain. The Cyberbullying Screening of Bullying among Peers, the Clinical Analysis Questionnaire and a sociodemographic survey were used. Hierarchical regression analysis was used. This study showed that the roles of those directly involved in cyberbullying correlate with psychopathological behaviors. It is a priority to promote prevention programs aimed at improving cyberbullying among students.
La roquésite, premier minéral d'indium : CuInS2

Decouvert en 1955, ce mineral a pu etre caracterise comme un sulfure de cuivre et d'indium grâce a la microsonde electronique de Castaing. ; Quadratique : a = 5,51 ; c = 11,05 A, isostructural avec la chalcopyrite. Raies intenses du diagramme de poudre (en accord avec le produit artificiel), 3,19 FFF, 1,95 FF, 1,66 F, gris legerement bleute en lumiere naturelle, uniaxe +, le pouvoir reflecteur est de l'ordre de 22 % ; la durete est comprise entre celle de la chalcopyrite et celle de la tetraedrite. L'indium a ete caracterise par spectre d'arc, par chromatographie et par analyse a la microsonde electronique. Les dosages a la microsonde conduisent a la formule CuInS₂. Ce nouveau mineral est dedie au Professeur Maurice Roques.
The Far Right in Latvia : Should We Be Worried?

This is the seventh article in our series Trouble on the­ Far-Right. While one cannot say that the far right movements and ideologies in Latvia are in a state of flux, the current situation in Europe has prompted some developments that could turn into significant trends in the medium to longer term. In turn, these could have an effect on broader European politics, if left unchecked.
Synthesis, Characterization of Cu, S doped TiO2 and Its Photocatalytic Activity for Degradation of Remazol Black B

Copper and sulfur modified TiO2(Cu-S-TiO2) photocatalyst was successfully synthesized using TiCl4, Cu(NO3)2.3H2O and H2SO4 as precursors by the sol-gel method andcalcination at 450°C for 4 hours. The synthesized photocatalyst was characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS), Diffuse Reflectance Spectroscopy (DRS), Brunauer Emmett Teller (BET) method. The XRD results showed that the Cu-S-TiO2 photocatalyst had an anatase phase with a crystal grain size of 17.54 nm. However, the SEM image of the modified TiO2 showed inhomogeneous phase due to the crystal clustering of imperfect homogenization during the synthesis and sintering processes. The patterns of EDSof Cu-S-TiO2depicted the elements of Ti, O, Cu and S with doping of Cu and S c.a. 7 and 1%, respectively. Analysis using DRS UV-Vis showed Cu-S-TiO2 was able to shift the absorption of the TiO2 photocatalyst wavelength to the visible region with a band energy gap of 1.9 eV. The BET analysis results showed that the specific surface area (SBET), pore volume (Vp) and average pore volume radius (Dp) were measured from large Cu-S-TiO2, therefore Cu-S-TiO2 had good physicochemical and photocatalytic properties. The photocatalytic activity of 0.1 g Cu-S-TiO2 with 15 Watt tungsten light irradiation for 4 h was able to degrade 50 mL remazol black B 10 mg/L c.a. 92.60 %.
UWB-Based Wireless Clock Synchronization and Real-Time Positioning in Smart Parking

Accurate clock synchronization is crucial for ultrawideband (UWB) localization, including smart parking systems and navigation systems. This study proposes a clock model designed specifically for UWB anchors and introduces an innovative wireless clock synchronization algorithm, leveraging a three-state Kalman filter (3S-KF). In addition, an efficient UWB-based positioning network (UPN) and a real-time positioning system are developed. Moreover, a comprehensive smart parking service framework, rooted in the UWB technology, is proposed. The effectiveness of both the wireless clock synchronization algorithm and the real-time positioning system is vigorously validated within a parking lot environment. The findings demonstrate the potential of these advancements to significantly enhance the efficiency and accuracy of smart parking services, offering promising applications in the field of wireless positioning and real-time tracking.
A New Numerical Simulation Method for Horizontal Well in Tight Sandstone Reservoirs

With further progress of oilfields' development all over the world, more and more tight sandstone reservoirs are being put in production. The existence of low velocity non-Darcy flow has been proven, so in this paper the three-dimensional three-phase horizontal well numerical simulator was developed with considering the non-Darcy flow. The comprehensive comparison and analysis of the simulation results of Darcy flow and non-Darcy flow were provided including liquid production rate, oil production rate, water cut, reservoir pressure, oil saturation distribution and pressure distribution. With considering the non-Darcy flow, the fluid flow in reservoir consumes more driving energy, the water flooding efficiency was reduced.
Selective Harmonic Elimination PWM Technique Based on Higher Order Sliding Modes: Generalized Formulation

This article pioneers a novel selective harmonic elimination (SHE) technique employing second-order sliding mode control. Unlike conventional methods, the proposed method leverages second-order sliding mode control to tackle the nonlinear equations of SHE, yielding smooth switching angles devoid of chattering. Theoretical analysis, including detailed derivations of controller parameters ensuring convergence, is presented. The algorithm has minimal computational burden, making it both simple to implement and robust in achieving convergence for any given modulation index (Mi). Simulation results, conducted in MATLAB/Simulink, and corresponding hardware outcomes from a field programmable gate array (FPGA)-based experimental prototype in the laboratory validate the efficacy of the proposed algorithm. The proposed algorithm achieves the computation of switching angles in under $1.5~\mu \text{s}$ for a configuration involving five switchings per quarter.
Multi-Electron Ionization and Coulomb Explosion of the IBr Molecule in the Near-Infrared Femtosecond Laser Field

The DC-sliced ion velocity map imaging approach was used to analyze the multi-electron ionization and subsequent Coulomb explosion of an IBr molecule exposed to a near-infrared femtosecond laser field. The existence of the molecular ions up to IBr7+ was observed in the experiment, and a series of Coulomb explosion channels are assigned. According to the “ladder-path” ionization model, the multi-electron ionization paths of IBr molecules are determined. We find that the charge transfer process does not occur during ionization, and the presence of higher charge states can be explained by considering the higher-order ionization process.
Encapsulation of Leptadenia pyrotechnica (Khip) Extract in Carbomer Based Emulgel for Its Enhanced Antioxidant Effects and Its In Vitro Evaluation

Background: The use of natural products in skin care has been valued for their tremendous therapeutic benefits since ancient times. The current study was aimed at exploring the Leptadenia pyrotechnica plant extract and development of a stable emulgel loaded with the same extract to assess its cosmeceutical potentials. Methodology: A stable emulgel loaded with methanolic plant extract along with its control gel was prepared by homogenization. The antioxidant potential of extracts prepared in different solvents (methanol MLP, ethanol ELP, n-hexane nLP, ethyl acetate EALP, and petroleum ether PLP) was determined by DPPH scavenging activity. The presence of phytochemicals was confirmed by total phenolic and flavonoid content analysis (TPC/TFC). HPLC was used for quantification of bioactive components. FTIR analysis was performed for confirmation of functional groups. SPF was calculated via spectroscopic analysis for extract, control gel, and extract loaded emulgel. Stability studies included physical evaluation, pH, conductivity, spreadability, and rheological testing of both control and test emulgels at different temperatures, i.e., 8 °C ± 1, 25 °C ± 1, 40 °C ± 1, 40 °C ± 1 with RH of 75% for a period of 90 days. Results: DPPH radical scavenging activity showed the highest antioxidant activity of 85.5% ± 2.78 for MLP. TPC and TFC were also found to be highest for the methanolic fraction, i.e., 190.98 ± 0.40 mgGAE/g and 128.28 ± 2.64 mgQE/g, respectively. The SPF of methanolic extract, placebo gel, and LPEG was 13.43 ± 0.46, 2.37 ± 0.33, and 7.28 ± 0.56, respectively. HPLC assay confirmed the presence of catechin, vanillic acid, caffeic acid, and sinapinic acid. Rheological analysis showed that formulation has pseudo-plastic flow behavior. Other stability tests also revealed that prepared emulgel is a stable one. Conclusion: A stable emulgel loaded with Leptadenia pyrotechnica plant extract was successfully prepared and characterized for its cosmetic effects.
Primary Determination of the Composition of Secondary Metabolites in the Wild and Introduced Artemisia martjanovii Krasch: Samples from Yakutia

Artemisia martjanovii Krasch is a rare representative of the genus Artemisia in Siberia and the Far East. The phytochemical composition of this endangered species is essential for its potential use in medicine. We used tandem mass spectrometry and HPLC-MS/MS methods to describe the metabolome from the stem and leaf extracts of A. martjanovii from Yakutia. The metabolome profile analysis of A. martjanovii grown in the Botanical Garden of the North-Eastern Federal University, Yakutsk, Russia, and the wild A. martjanovii from Khangalassky district, Republic of Sakha (Yakutia) differed significantly both in the polyphenol composition and other compound classes. In total, we identified 104 bioactive constituents from stem and leaf extracts, 56 compounds from the polyphenol group, and 48 from other compound classes. Twenty-seven compounds classified as polyphenol groups, i.e., flavones apigenin, trihydroxy(iso)flavone, salvigenin, cirsiliol, cirsilineol, nevadensin, syringetin, gardenin B, thymonin, and chrysoeriol C-hexoside; flavonols: taxifolin, tetrahydroxy-dimethoxyflavone-hexoside, etc.; and 26 compounds from other classes are being reported for the first time in the genus Artemisia L.
UNA NUEVA LOCALIDAD PARA LA DISTRIBUCIÓN GEOGRÁFICA DE Batrachemys Heliostemma (REPTILIA, CHELIDAE) EN LA AMAZONÍA PERUANA

El presente informe da a conocer la presencia del Batrachemys heliostemma en la Zona Reservada AllpahuayoMishana como nueva localidad para la distribucion geografica de esta especie recientemente descrita en la Amazonia peruana.
Visualization of the Dynamics of Photoinduced Crawling Motion of 4-(Methylamino)Azobenzene Crystals via Diffracted X-ray Tracking

The photoinduced crawling motion of crystals is a continuous motion that azobenzene molecular crystals exhibit under light irradiation. Such motion enables object manipulation at the microscale with a simple setup of fixed LED light sources. Transportation of nano-/micromaterials using photoinduced crawling motion has recently been reported. However, the details of the motion mechanism have not been revealed so far. Herein, we report visualization of the dynamics of fine particles in 4-(methylamino)azobenzene (4-MAAB) crystals under light irradiation via diffracted X-ray tracking (DXT). Continuously repeated melting and recrystallization of 4-MAAB crystals under light irradiation results in the flow of liquid 4-MAAB. Zinc oxide (ZnO) particles were introduced inside the 4-MAAB crystals to detect diffracted X-rays. The ZnO particles rotate with the flow of liquid 4-MAAB. By using white X-rays with a wide energy width, the rotation of each zinc oxide nanoparticle was detected as the movement of a bright spot in the X-ray diffraction pattern. It was clearly shown that the ZnO particles rotated increasingly as the irradiation light intensity increased. Furthermore, we also found anisotropy in the rotational direction of ZnO particles that occurred during the crawling motion of 4-MAAB crystals. It has become clear that the flow perpendicular to the supporting film of 4-MAAB crystals is enhanced inside the crystal during the crawling motion. DXT provides a unique means to elucidate the mechanism of photoinduced crawling motion of crystals.
Abordagem para Aprendizado do Simulador gem5 para Pesquisadores Iniciantes

O simulador gem5 é uma ferramenta com muitos recursos para desenvolvimento de pesquisa em arquitetura de computadores. Ele suporta simulações de sistemas completos, as Instruction Set Architectures (ISAs) mais utilizadas no mercado e diversos tipos de configurações de sistema. É principalmente utilizado por pesquisadores, mas também pode ser utilizado para ensinar arquitetura de computadores a estudantes. Neste artigo, uma abordagem simples é proposta para que iniciantes comecem a utilizar o simulador de maneira rápida e fácil de entender.
A Design Method for Rectangular Waveguide-Typed Microwave Devices Based on a Novel Origami Process

A novel design method based on a novel origami process that can create a solid structure swiftly and at a low cost is presented for rectangular waveguide-type microwave devices in this paper. A planar structure was fabricated by the lamination and laser cutting of polystyrene membranes and aluminum foils and was converted into a solid structure via origami in accordance with the selective absorption of infrared light. A rectangular waveguide, a rectangular waveguide-type coupler, and a power divider based on an origami structure with a multi-layer structure and a single-layer structure were fabricated and tested, demonstrating easy assembly and good microwave performance. The measured results of the rectangular waveguide indicated that the insertion loss was superior to −0.9 dB. Meanwhile, the results of the coupler showed that the coupling degree increased from −12.8 dB to −8.9 dB in the range of 11.0 GHz to 12.0 GHz. Correspondingly, the prepared power divider demonstrated that the return loss dwindled from −8.9 dB to −11.3 dB and that the insertion loss of one output port was approximate to that of the remaining one, varying between −3.5 dB and −5.2 dB in the range of 10.5 GHz to 11.5 GHz—verifying the effectiveness of the origami-based design method.
TBNet: learning from scratch and limited training data, a CNN based tuberculosis bacilli detection

Tuberculosis (TB) is an infectious disease caused by the micro-bacteria. Several studies that have been conducted previously aimed to reduce the burden of observing tuberculosis bacilli using the digital image processing method. In this study, we proposed a newly developed convolutional neural network (CNN) based deep learning model to detect tuberculosis bacilli in sputum smear images. Recent advances in deep learning apply large scale image dataset to achieve convergent weight model. However, medical image dataset commonly available in relatively small quantity. In contrary with common deep learning approach, our model is capable to learn from our small dataset which consist of highly diverse hue and contrast of sputum smear images. Furthermore, its performance is proven to be reliable to detect sputum smear image content, which are TB bacillus and debris.
Analisis Kebutuhan Pengembangan Perangkat Lunak Pada Pembelajaran Bahasa Inggris untuk Mengatasi Masalah Pelafalan

This study aims to examine the needs of EFL learners in Indonesia towards Pronunciation as a focus point of the development of English pronunciation learning software. This research uses descriptive analysis which analyzes and observes previous studies regarding the pronunciation problems experienced by students from various regions in Indonesia. The literature review shows that there are still many pronunciation errors that are often associated with the absence of an English sound in their mother tongue. This has also emerged several patterns of errors experienced by students. The result deduces that EFL learners need the supporting software to cope with the pronunciation problems that can describe the potential pronunciation errors and segmental aspect of each English sound.
Occupational Stress and Turnover Intentions in Employees of the Portuguese Tax and Customs Authority: Mediating Effect of Burnout and Moderating Effect of Motivation

The main objective of this study was to study the effect of occupational stress on turnover intentions, as well as determine whether this relationship is mediated by burnout levels and moderated by motivation. The sample size of this study consisted of 603 participants, all employees of the Portuguese Tax and Customs Authority, which is part of the Ministry of Finance and belongs to the Direct State Administration. The results indicate that occupational stress (with managers, career and pay, and overwork) has a positive and significant effect on turnover intentions and that this relationship is mediated by burnout. Motivation (intrinsic and identified) has a negative and significant effect on turnover intentions. Intrinsic motivation moderates the relationship between occupational stress (with managers, colleagues, career and pay, and family problems) and turnover intentions. These results indicate that among the dimensions of occupational stress, the most critical are the stress caused by managers, work overload, and career and pay. These are factors that the Direct State Administration should be concerned with to reduce employees’ stress levels, as well as their turnover intentions.
University students' perceived information overload mediates smartphone immediate response syndrome during COVID-19 outbreak: Taking the perspective of personality

The COVID-19 pandemic has affected university students’ learning and social interaction to a large level, causing different degrees of negative emotions and made them extremely sensitive to smartphone information. However, little is known about the link between personalities, perceived information overload (PIO) and smartphone immediate response syndrome (SIRS) during students' learning process in this specific emergency social context. Therefore, based on the person-environment fit model, this study investigated 482 university students from mainland China during the epidemic by a snowball sampling approach, and analyzed the relationship between their personalities, PIO and SIRS by structural equation modeling. Results indicated that individuals with extraversion and neuroticism formed SIRS from different psychological paths. PIO plays a partial mediating role between neuroticism and SIRS and a fully mediating role between extraversion and SIRS. These findings validate the association among individual personality, PIO and SIRS in the non-conventional environment and highlights the difference exist in cellphone-related psychological path between extraverted and neurotic students. Therefore, it is recommended that PIO should be controlled in a targeted manner for individuals with different personality and guide them using cellphones rationally during the epidemic.
Obtaining the Enoxaparin Sodium Substance Equivalent to the Original Clexane® and Lovenox®. The Selection of Technological Parameters and Optimization of the “Greenness” of the Purification Stage

The aim of the study was to adjust and optimize the purification stage of crude enoxaparin sodium to obtain a substance equivalent to the original drugs Clexane® and Lovenox® according to the criteria specified by the FDA. The purification stage involves the reprecipitation of crude enoxaparin in methanol. Determining the ratio of solvents required for the reprecipitation is important for studying the correlation between the experimental conditions of the technological process and the structural characteristics of enoxaparin samples. In the study, the method of purification of enoxaparin sodium described in the patent was assessed, and the following variations of the MeOH:H2O solvent ratio were selected – 4:1; 2:1; 1:1. The obtained samples of enoxaparin sodium were analyzed according to the in-house specification developed on the basis of the pharmacopoeial monograph, as well as by non-pharmacopoeial methods, such as two-dimensional NMR spectroscopy (HSQC) and size exclusion chromatography (SEC) for detailed characterization of the molecule. Strategies of greening of the enoxaparin sodium purification stage by reducing the E-factor were also considered in the study. Considering the principles of “green” chemistry, the method of purification of crude enoxaparin sodium was optimized by the solvent regeneration. It was experimentally possible to demonstrate the effect of the solvent ratio at the stage of purification of crude enoxaparin on the composition, as well as on the number and distribution of oligosaccharide fractions in the molecule. Based on the results of the study, it can be concluded that the ratio of MeOH:H2O=1:1 allows obtaining samples that are closest to Clexane® and Lovenox® in terms of the molecular weight distribution profile and the composition profile. The E-factor was also reduced from 14 to 5.25 by solvent regeneration.
Evidence for amorphous calcium carbonate originated mid-lithospheric discontinuities

Cratonic lithosphere is a vast host for deep recycled carbon, trapping up to several weight percent CO 2 among its compositions at depths overlapping the seismic mid-lithospheric discontinuities (MLDs). However, the role of carbonates, especially for the latest discovered amorphous calcium carbonate (CaCO 3 ), is underestimated in forming MLDs. Using the pulse-echo-overlap method in a Paris-Edinburgh press coupled with X-ray diffraction, we explored the acoustic velocities of CaCO 3 under high pressure-temperature ( P-T ) conditions relevant to the cratonic lithosphere. Two anomalous velocity drops were observed associated with the phase transition from aragonite to amorphous phase as well as with pressure-induced velocity drop in amorphous phase around 3 GPa, respectively. Both drops are comparable with approximately 35% and 52% reductions for compressional ( V P ) and shear ( V S ) wave velocities, respectively. The V P and V S values of the amorphous CaCO 3 above 3 GPa are about 1/2 and 1/3 of those of the major upper-mantle minerals, respectively, and they are the same with aragonite below 3 GPa. These velocity reduction by the presence of CaCO 3 would readily cause MLDs at depths of 70–120 km dependent on the geotherm even if only 1-2 vol.% CaCO 3 presents in the cratonic lithosphere. The CaCO 3 -originated MLDs is weak so as to be expected to influence the stability, rifting, and delamination of the craton.