Miracle-dz/UniFAR-FTUs huggingface dataset:
Bidirectional Relationship Between Cash Holdings and Financial Performance for Banks in the MENA Region

This study examines the interrelationship between cash holdings and financial performance by firstly investigating whether the existence of an optimal cash level maximizes financial performance and secondly measuring the impacts of financial performance over the optimal level of cash holdings. This study uses a sample of 400 financial institutions in the Middle East and North Africa (MENA) region across 18 different countries over 15 years (2003–2017). The results support the hypothesis about the positive impact of cash holdings over the financial performance as well a positive influence for financial performance over the existence of an optimum level of cash holding. The analysis supports this association through a robustness test by controlling the culture variables based on Hofstede's model as well as through using different alternative measures for cash holdings. This study is one of the original empirical studies that measure the interrelationship between holding cash and the level of financial performance through the banking sector in the MENA context.
Copper Adsorption Kinetics onto Pseudomonas aeruginosa Immobilized Multiwalled Carbon Nanotubes in an Aqueous Solution

Abstract Pseudomonas aeruginosa immobilized multiwalled carbon nanotubes were used as a novel kind of solid-phase extraction adsorbents of heavy metals, and the concentration of copper ions in the aqueous solution was obtained with the use of linear sweep anodic stripping voltammetry (LSASV). The adsorption of copper ions was rapid, and equilibrium was attained within 30 min. The combination technique provides fast, real-time information for adsorption process. Based on the electrochemical results, the kinetics and equilibrium were systematically examined. The pseudo-second-order kinetic model was used to correlate the kinetic experimental data, and the kinetic parameters were evaluated. The Langmuir and Freundlich models were applied to describe the adsorption isotherms.
Extractive Text Summarization System for News Texts

In today's conditions, it is difficult to obtain information quickly and efficiently due to the size of the data. There are various text documents on the internet and a good extraction algorithm is essential to have the most relevant information from them. Long texts can be boring sometimes. So, readers are eager to get the main idea of the text or any useful information. For this reason, the importance of automatic summarization systems is understood. Text summarization systems can be considered as abstractive summarization or extractive summarization. While abstractive systems produce a summary with new sentences, extractive systems make a selection of sentences from the text used and combine them and present them as a summary. Creating a successful summarization algorithm increases in direct proportion to the success of applying text mining techniques. Text summary systems provide a summary of the text to the user by scoring words and sentences in the main text using various methods and combining high ranked sentences as a result of the process. In this context, many scoring methods have been used. In our study, news data sets are used. The algorithm used is based on extraction and has been evaluated using a task-independent method. After evaluation, the two highest scores taken are ROUGE-1 with 0.68 score and ROUGE-S with 0.54 score. Through all evaluation steps, Precision, Recall and F-Measure values are also specified to see the steps clearly. This is an open access article under the CC BY-SA 4.0 license. (https://creativecommons.org/licenses/by-sa/4.0/)
Specificities of Communication in Children with Intellectual Disorders

Objective: The purpose of this work is to study the characteristics of communication in children with intellectual disabilities. Background: The study of the specificities of communication in children with intellectual disabilities has become more and more relevant in the past few years. Method: The methodological basis of this study was the combination of various theoretical methods of cognition. Results: In the process of writing this work, the author studied the techniques of verbal and non-verbal communication. The works of Russian and foreign authors, as well as methods of improving communication in children with intellectual disabilities, were considered. It was found that the impact of intellectual disabilities with mild mental retardation on the cognitive, behavioural and emotional-personal spheres of the communicative process naturally entails the emergence of serious difficulties in establishing contacts with people around, and therefore in the process of social adaptation of the child in general. Conclusion: The practical significance of this work lies in the study of the characteristics of communication in children with intellectual disabilities, which will be useful for psychologists, teachers and medical workers. The study and research of this topic will provide further opportunities for the development of a program of psychological influence to optimise communication for children with intellectual disabilities and their adaptation in society.
De novo Whole Transcriptome Analysis of Wingpod Purslane, Portulaca umbraticola, and Its Application to the Discovery of Genes Related to Flower Senescence and Opening Rhythm

Portulaca umbraticola , an important ephemeral summer bedding plant, may be a model system for studies on flowering behavior under heat stress. Herein, we report the first comprehensive transcriptome analysis of P. umbraticola by RNA-sequencing. We generated 22.15 G bases which were assembled into 68,928 unigenes, and a total of 43,880 coding sequences (CDS) were detected. We also detected 13,603 simple sequence repeats on 10,784 unigenes, and predicted 1,444 transcription factor (TF) coding unigenes. Subsequently, we focused on gene discovery in the areas of flower senescence and opening rhythm. We identified the majority of transcripts involved in ethylene biosynthesis, perception, and signaling pathways, as well as transcripts corresponding to circadian clock components. Expression profiles of the ethylene biosynthesis and signaling pathway genes in two cultivars with different flower longevity showed a clear correlation with previously observed endogenous ethylene production. PuACS1 and PuACO2 transcripts showed higher expression, and peaked earlier in a short lived cultivar than in a long lived cultivar. Expression analysis of the core clock component genes showed PuCCA1/PuLHY and PuTOC1 under reciprocal circadian regulation similar to that found in Arabidopsis thaliana , and other plant species. This study provides the first steps in understanding the molecular mechanisms underlying flowering traits in P. umbraticola , and paves the way for future integrated insights into molecular genetics, biotechnology and physiological studies of P. umbraticola .
Residential Solid Oxide Fuel Cell Generator Fuelled by Ethanol: Cell, Stack and System Modelling with a Preliminary Experiment

The flexibility and feasibility of a 5 kW SOFC generator designed for natural gas (NG) and fuelled by a non‐conventional liquid fuel such as ethanol is analysed. A complete generator model is implemented to predict and determine the main criticalities when ethanol fuel is adoperated. The main balance‐of‐plant (BoP) units considered are the reformer, the recirculation system based on an ejector, the tubular cells bundles constituting the stack unit, the after‐burner zone and the air blower. The electrical and global efficiencies achieved at nominal operating conditions show how ethanol maintains generator performance good, while only slightly reducing the system AC efficiency from 48% (achieved by NG) to 45%. The effectiveness and flexibility of the recirculation system when changing the fuel is also verified since a safe steam‐to‐carbon ratio (STCR) is established after the fuel is switched from NG ethanol. The stack thermal management is analysed in detail and related to the system performances, showing how a high endothermic fuel reforming reaction is required to maintain the overall system efficiency. A preliminary experiment with ethanol feeding the Siemens generator is finally presented. The system response to the new fuel is monitored by several measured parameters and the system regulation is explained.
Origin and Nature of Parental Magma and Sulfide Segregation of the Baixintan Magmatic Ni–Cu Sulfide Deposit, Southern Central Asian Orogenic Belt (CAOB), NW China: Insights from Mineral Chemistry of Chromite and Silicate Minerals

The mineral chemistry of chromite and silicate minerals in the Baixintan magmatic Ni-Cu sulfide deposit in the Northern Tianshan, southern Central Asian Orogenic Belt (CAOB) are reported here. Two types of chromite were identified in mafic-ultramafic rocks. Type I chromite occurs as inclusions encased in olivine and has a primary and magmatic origin and homogeneous composition with Cr# values (49–66). It is characterized by high Ti contents (0.33–1.52 wt%) and small quantities of ZnO (0–0.21 wt%), MnO (0.28–0.45 wt%), and NiO (0.06–0.24 wt%) contents. In contrast, type II chromite with interstitial phase and larger compositional variations has significantly higher TiO2 (up to 6.2 wt%) and FeOt contents (up to 69.3 wt%) and slightly lower Al2O3 (minimum 3.0 wt%) and MgO contents (minimum 0.53 wt%). It is considered to crystallize from a more evolved and fractionated melt and suffers from post-magmatic alteration, such as serpentinization and chloritization. The olivine has forsterite values (Fo) varying from 76.8 to 85.6. The parental magma is characterized by high temperature (1389 °C), high pressure (3.8 Gpa), and high Mg content (11.4 wt%) with oxidized (FMQ + 1.6) and hydrous nature based on compositions of primary chromite and olivine–chromite pairs. The intrusion originated from high-degree partial melting of depleted mantle that had been modified by crustal components and metasomatized by subduction fluid in a post-orogenic extensional setting. Two stages of sulfide segregation have been recognized. Early segregation led to the depletion of platinum group elements (PGE), and disseminated sulfide mineralization was the product of later segregation. The assimilation of crustal Si and S components played more important roles on sulfide segregation rather than fractional crystallization.
Interactions of Perylene Bisimide in the One Dimensional Channels of Zeolite L

Supramolecularly organized host guest systems have been prepared by inserting three perylene dyes with differing end substituents into the nanosized channels of zeolite L (ZL) by gas-phase adsorption under vacuum conditions. The end substituents allowed controlling the core-to-core distances of the molecules in the channels. The three perylene dyes investigated have very similar absorption and fluorescence spectra in diluted solutions, as well as fluorescence lifetimes ∼ 4 ns. Large ZL crystals in the size range of 1500−3000 nm in length and about 1000 nm in diameter as well as nanosized NZL crystals of about 30 nm in length and diameter were used as hosts. Different loadings have been investigated. The photophysical properties of the materials were analyzed as suspensions in refractive index matching solvents, such as toluene or ethyl benzoic acid ester; as bulk materials in glass ampules; and by means of time-, space-, and spectrally resolved single-crystal fluorescence microspectrocopy techniques. The inserted dyes can form J-aggregates if the structure of the perylene derivative allows for short distances between the electronic transition moments in an in-line arrangement. J-coupling was not seen for the molecules with substituents that keep them further apart. Aligned and stabilized J-aggregates in one-dimensional channels provide new options for preparing optical devices, where coherent exciton delocalization over nanometer-to-micrometer scales may result in efficient photonic wires. The exciton coupling can be controlled by varying the molecular tail groups.
Mapping Built-Up Land with High Accuracy Using Fourier Transformation and Temporal Correction

Long-term, high-accuracy mapping of built-up land dynamics is essential for understanding urbanization and its consequences for the environment. Despite advances in remote sensing and classification algorithms, built-up land mapping using early satellite imagery (e.g., from the 2000s and earlier) remains prone to uncertainty. We mapped the extent of built-up land in Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 4 December 2020 © 2020 by the author(s). Distributed under a Creative Commons CC BY license. doi:10.20944/preprints202012.0105. v1
Study of the operation of the output filter of a single-phase series active power filter

In the article is presented a single-phase series active power filter (SFSAPF) designed to compensate the total harmonic distortion (THD) factor of the supply network voltage. Particular attention is paid to the work of the output capacitor of the passive filter, and dependencies for the design of the filter at hysteresis voltage control are presented. The value of the higher harmonics of the current through the filter capacitor is determined. A mathematical relationship between the voltage ripple of the capacitor, its value and the switching frequency is derived. As a result of the advanced research a methodology for designing the output filter of a single-phase serial active power filter has been proposed. The results from computer simulation and experiment are also given.
The Influence of Social Media on the Health Seeking Behaviour of University Students

Social media is an internet-based form of communication that allows users to share information, create web content and have conversations. Some of the popular social media platforms include Facebook, WhatsApp, Instagram, Twitter, YouTube, LinkedIn, Telegram, Snapchat, etc. This study aimed to establish how students use social media platforms to access health information. A crosssectional survey design with a randomized sampling technique was employed. The research was conducted in 2019. Open and closed-ended questionnaires were used to assess the responses. The study found that all the 354 (100%) respondents were active internet users with an account to at least one social media platform. The majority of them had an account on more than one social media platform. A total of 64 (18.1%) people answered in the affirmative to ever being influenced by social media to start medication or treatment, while 39 (11%) also responded positively to being influenced by social media to stop medication or treatment. The study found that out of the 354 completed questionnaires, only 134 respondents always discussed the authenticity of health-related information obtained on social media with health professionals. Based on the results of this study, it can be concluded that majority of university students are active users of social media. Many university students access health information on social media and a considerable number of them relies on information obtained from social media to make decisions concerning their health, such as starting or stopping treatment or medication.
Physical Properties of Isotactic Poly(propylene)/Silver Nanocomposites: Dynamic Crystallization Behavior and Resultant Morphology

The presence of silver nanoparticles (0.01-5 wt.-%) increased the crystallization temperature of isotactic poly(propylene) (iPP) (e.g., a 5 wt.-% content increases the temperature by ca. 7 °C) and produced a sharper crystalline peak. It had little effect on the melt rheology of the nanocomposites. The shear-induced crystallization behavior of iPP was accelerated with increasing Ag content and imposed frequency. In addition, the promoting effect of Ag nanoparticles on the overall crystallization behavior was more notable at 140 °C than at 130 °C. The wide-angle X-ray diffraction scans of iPP nanocomposites with 5 wt. -% Ag crystallized at 130 °C clearly presented another peak at a 20 value of 15.8°, which corresponded to a β-form crystal. The nanocomposites with 5 wt. -% Ag crystallized at 130 °C gave double melting peaks at 154 and 166 °C. On the other hand, the samples crystallized at 140 °C produced two melting peaks at 166 and 172 °C. The introduction of as much as 0.1 wt. -% of Ag nanoparticles increased both the tensile strength and elongation at break, but subsequent further addition caused a decrease. In addition, iPP nanocomposites with more than 1 wt. -% Ag exhibited a higher modulus than pure iPP.
Compressive sensing theory and neighborhood spatial‐temporal information for frame rate improvement of dynamic ultrasonic imaging

The frame rate improvement is an essential issue in dynamic ultrasonic imaging for better displaying rapid heart movements. In this study, a new technique using the compressive sensing (CS) theory was introduced for the frame rate improvement of two‐dimensional (2D) and three‐dimensional (3D) dynamic ultrasonic imaging. In the suggested procedure, a fewer radio frequency (RF) lines were received. Subsequently, the CS theory by the recommended approach was used to reconstruct the nonacquired RF lines. The suggested process uses the temporal and spatial information in the neighborhood samples of the desired sample in RF frame sequences. We utilized the dictionary learning technique to construct the sparsifying over‐complete dictionary. Here, we used the 2D in vivo carotid artery data and the 3D simulated echocardiography for the quality assessment of the suggested approach. According to the qualitative and quantitative results, reconstructions in the suggested approach are more precise, and the reconstruction errors are much lower than the conventional techniques. The tissues' structure in reconstructed videos by the suggested approach is preserved to be applicable for medical diagnosis goals. The frame rate can be improved by a factor of 10 with suitable quality for medical diagnosis goals. The implementation of the suggested approach does not require any more hardware or alternation in the devices' available hardware. The frame rate can be improved by only implementing effective programming on the ultrasound systems.
Conventional or Microwave Sintering: A Comprehensive Investigation to Achieve Efficient Clean Energy Harvesting

Layers of titania are the critical components in sensitized photovoltaics. The transfer of electrons occurs from the dye molecule to the external circuit through a transparent conducting oxide, namely fluorine-doped tin oxide (FTO). Porosity, interparticle connectivity, and the titania films’ defects play a vital role in assessing the dye-sensitized solar cells’ (DSSCs) performance. The conventional methods typically take several hours to fabricate these layers. This is a significant impediment for the large-scale manufacture of DSSCs. This step can be reduced to a few hours by a microwave sintering process and may facilitate the rapid fabrication of the critical layers for sensitized photovoltaics, thus, boosting the prospects for the commercialization of these devices. In the present study, we aimed to perform different heat treatments (conventional and microwave) on the titania films with different temperatures to understand the phase formation, transmittance, and porosity without losing the titania’s interparticle connectivity. The solar cell performance of microwave-sintered titania films is comparatively higher than that of conventionally sintered titania films.
Influence of supporting ligand microenvironment on the aqueous stability and visible light-induced CO-release reactivity of zinc flavonolato species

The visible light-induced CO-release reactivity of the zinc flavonolato complex [(6-Ph2TPA)Zn(3-Hfl)]ClO4 (1) has been investigated in 1 : 1 H2O : DMSO. Additionally, the effect of ligand secondary microenvironment on the aqueous stability and visible light-induced CO-release reactivity of zinc flavonolato species has been evaluated through the preparation, characterization, and examination of the photochemistry of compounds supported by chelate ligands with differing secondary appendages, [(TPA)Zn(3-Hfl)]ClO4 (3; TPA = tris-2-(pyridylmethyl)amine) and [(bnpapa)Zn(3-Hfl)]ClO4 (4; bnpapa = N,N-bis((6-neopentylamino-2-pyridyl)methyl)-N-((2-pyridyl)methyl)amine)). Compound 3 undergoes reaction in 1 : 1 H2O : DMSO resulting in the release of the free neutral flavonol. Irradiation of acetonitrile solutions of 3 and 4 at 419 nm under aerobic conditions results in quantitative, photoinduced CO-release. However, the reaction quantum yields under these conditions are lower than that exhibited by 1, with 4 exhibiting an especially low quantum yield. Overall, the results of this study indicate that positioning a zinc flavonolato moiety within a hydrophobic microenvironment is an important design strategy toward further developing such compounds as CO-release agents for use in biological systems. Graphical Abstract
Erros Residuais de Fala – estudo preliminar sobre características dos sistemas fonético/fonológico em falantes do Português Brasileiro

Introducao: Erros residuais de Fala podem ser caracterizados como resquicios de um importante atraso de fala pregresso. Objetivo: Apresentar dados preliminares, relativos ao sistema fonetico/fonologico de um grupo de sujeitos com Erros Residuais de Fala. Metodos: Estudo transversal, quantitativo, realizado a partir de um levantamento de dados de prontuarios de 39 sujeitos com Erros Residuais de Fala, com idade igual ou superior a nove anos. Foram analisadas informacoes como alteracoes segmentais de fala, caracterizadas por distorcoes e processos fonologicos, idade e sexo. As variaveis foram organizadas em uma planilha do Excel e submetidas a analise estatistica. Resultados: A amostra ficou formada predominantemente por meninos, na faixa etaria dos nove e dez anos. Notou-se maior ocorrencia de processos fonologicos envolvendo os fonemas fricativos /ʃ/ e /ʒ/, a liquida /r/ e reducao de encontro consonantal. Em relacao ao sistema fonetico, identificaram-se, principalmente, distorcoes envolvendo os fones [r], [s] e [X]. Observou-se diferenca estatisticamente significante, para a reducao de encontro consonantal, envolvendo o fonema /l/ pelo sexo feminino e substituicao do fonema /s/ entre as faixas etarias, com porcentagem de erros maior para a faixa etaria dos 11-12 anos. Conclusao: Os Erros Residuais de Fala ocorreram em maior porcentagem na faixa etaria dos nove e dez anos, em meninos. Tais erros podem ser caracterizados por processos fonologicos e/ou distorcoes foneticas, envolvendo fricativas e liquidas.