Miracle-dz/UniFAR-FTUs huggingface dataset:
Entropy-driven Phase Transition of Semiflexible Hard-Sphere Polymer Packings in Two and Three Dimensions

We study, at the atomic level, the behaviour of athermal, linear semiflexible polymers of tangent spheres in thin films of one-layer thickness (2-D systems) and bulk 3-D systems. We employ extensive Monte Carlo simulations [1] at progressively increased concentrations adopting the hard-sphere model to represent interactions between monomers. Extreme, plate-like confinement for thin films is realized through the presence of flat, parallel walls in one dimension with the inter-wall distance being equal to the diameter of the spherical monomers. Chain stiffness is controlled by a tuneable potential for the bending angles whose intensity dictates the rigidity of the polymer backbone. At very high values of bending intensity, the polymer model approaches that of freely-rotated chains and bending angles sample the whole range from acute to obtuse angles, reaching the limit of rod-like polymers. We study how packing density, chain length and stiffness affect the entropy-driven phase transition from initially disordered (random) to ordered (crystal) local and global structures in dense polymer packings in 2-D and 3-D systems and compare against fully flexible chains and monomeric counterparts [2]. To gauge local order, we employ the characteristic crystallographic element (CCE) norm, a descriptor, which can detect and quantify, with high precision, similarity to reference crystals in general atomic and particulate systems [3,4]. In all cases, we identify the critical volume fraction for the phase transition and gauge the established crystal morphologies. [1] P. Ramos, N. C. Karayiannis and M. Laso, J. Comput. Phys. 375, 918 (2018). [2] N. C. Karayiannis, K. Foteinopoulou and M. Laso, Int. J. Mol. Sci. 14, 332 (2013). [3] N. C. Karayiannis, K. Foteinopoulou and M. Laso, J. Chem. Phys. 130, 074704 (2009). [4] P. Ramos, M. Herranz, K. Foteinopoulou, N. C. Karayiannis and M. Laso, Crystals 10, 1008 (2020).
DEVELOPMENT OF HVAC SYSTEM FOR MBSL-2 TFRIC BPPT

Tracing, tracking and testing are keys in fighting COVID-19 pandemic. At the start of the pandemic in Indonesia, the capacity to test with RT-PCR methods as the golden standard was still quite low. BPPT, through TFRIC-19, developed MBSL-2 to increase the capacity of Covid-19 PCR Test. This Mobile Bio-Safety Level-2 (MBSL-2) is equipped with HVAC system which has the main function of providing comfort and safety for testing personnel as well as safety for the testing process. This MBSL-2 also provides safety for the environment in which MBSL-2 is placed from contamination of the SARS-CoV-2 virus which may be released during the PCR analysis process. There are several variants of the Heating, Ventilating and Air Conditioning (HVAC) MBSL-2 that have been built and operated. The requirement and the design result for MBSL-2 has been discussed in this paper. This HVAC system has to be able to cover cooling load of 2459 W. This MBSL-2 HVAC system has been designed to complement the RT-PCR testing facility that is safe for the personnel, environment and testing result from contamination. This MBSL-2 has been proved to be safe in the operation during this pandemic. Keywords : PCR Test; HVAC; COVID-19; MBSL-2, BSL-2
A Wearable Flexible Energy-Autonomous Filtenna for Ethanol Detection at 2.45 GHz

This work proposes the design and implementation of a wearable rectifying filtenna (filtering antenna) which is activated and powered wirelessly, to detect the presence of ethanol solutions. The system is implemented on a Rogers RT/Duroid 5880 substrate ( $\varepsilon _{r} =2.2$ and thickness: 0.508 mm), whose flexibility facilitates the system wearability. The fluid detection is performed by a resonant stub embedding a microfluidic channel on its end, which resonates as an open circuit at 2.45 GHz when the channel is filled with the ethanol solution and undergoes a dramatic shift on its input impedance behavior when the channel is filled with water or when it is empty. The system is powered wirelessly by means of a 2.45-GHz narrowband antenna, and the frequency selection is performed by a second-order open-end coupled-line filter whose one end is loaded with the resonant stub. The filtenna RF signal is transduced by a full-wave rectifier exploiting low-threshold voltage diodes, and fluid detection is read out through different values of dc-output voltages, allowing an immediate response. The system is designed and optimized by means of full-wave/nonlinear co-simulations and the realized prototype is measured to confirm a safe detection of the tested solution.
Impact investments, evil investments, and something in between: Comparing social banks' investment criteria and strategies with depositors' investment preferences

Since the global financial crisis in 2007, social banks have been flooded with deposits. Previous studies have indicated that customers hold deposits with social banks due to social banks' special placement of assets. However, to date it has been far from clear how social banks select their investments, and consequently to what extent the placement of assets meets depositors' preferences. The purpose of this paper is, therefore, to investigate whether the characteristics of social banks’ placement of assets are relevant to depositors’ choice of social banks. A two- stage study is conducted, using data collected via a document analysis of social banks' investment criteria, a survey of social banks, and an online survey of 609 depositors. The results imply that the characteristics of social banks' placement of assets are indeed relevant to depositors' choice of social banks, but do not explain customer behaviour entirely. Furthermore, the findings indicate that a relevant proportion of customers hold deposits with social banks to avoid “evil” rather than necessarily creating “good. ” Based on the findings, a theoretical framework of depositors' choice of social banks is presented that goes far beyond previous explanations by considering various types of social depositors, banks, and borrowers. The entire model shows a moderate goodness of fit, with a Nagelkerke (pseudo- ) R 2 of . 547 and a p value of the likelihood ratio test of . 000 ( χ 2 = 254.313; df = 18). These results indicate that all characteristics of social banks' placement of assets are relevant to depositors' choice of social banks. However, the proportion of variance explained seems to be too small to explain depositors' choice of social banks entirely.
Consumer Preferences To Use Digital Payment OVO as Study of Industry Development 4.0 in Indonesia (Case Study: Student of Walisongo State Islamic University)

Financial technology (fintech) emerged as a form of innovation in digital payment systems. OVO is one of the platforms that has contributed to the growth of digital payment service providers in Indonesia. This platform is a subsidiary of the Lippo Company managed by PT. Visionet International. According to a report released by CB Insight titled "The Global Unicorn Club OVO" has been a unicorn status since March 14 th , 2019, and seat in the 2 nd ranks with a valuation of $ 2.9 billion (Rp. 40.6 trillion). This is can be the effect of the various facilities and friendly users so that OVO continues to make a better future of Fintech as comfort that always available in accessing support economic activities in the industrial era 4.0. This study aims to determine what factors influence consumer preferences in using digital payment OVO. The technique used is purposive random sampling by distributing questionnaires to specific respondents. The factors that are considered influential are gender, student level, average student financial per month, brand image, risk perception, price, and ease of use. Using binary logistic regression analysis (logit), this research concluded that the factors of influence consumer preferences in using digital payments OVO are risk perception and price.
Separating arsenic oxyanions from natural waters for oxygen isotope analysis

Diese Studie hat ein vollstandiges Verfahren fur die Messung der Sauerstoff-Isotope in Arsen-Oxianionen in naturlichen Wassern durch den Einsatz verschiedener Adsorbentien entwickelt. Experimente zum kinetischen Austausch von Sauerstoff zwischen AsO43- und Wasser haben gezeigt, dass sich das Gleichgewicht bei verschiedenen pH-Bedingungen und Temperaturen in sehr kurzer Zeit einstellt.
The Effects of Covid-19 on Global Tourism

The world is facing an unprecedented situation with Covid-19 posing many socioeconomic challenges to tackle. While projections of UNWTO suggest that international tourist arrivals could decline by 60-80 per cent for 2020, global tourism has once again come under the radar of crises. The aim of this study is to explore and discuss the ramifications of the pandemic on global tourism and its allied industries. For the same, a regional assessment has been carried out on global tourism and three associated industries including airlines, hospitality with special focus on the hotel segment and the MSMEs involved directly in tourism. Region-wise analysis reveals that Asia-Pacific region has been the most affected followed by Europe and America due to the restrictions imposed on travel and tourism sector across nations. The paper also discusses the policy responses taken by economies across the world and provides an overview of the future policy decisions which will be crucial for the sustenance of the global tourism sector. Tourism, a resilient and flexible sector, requires several structural adjustments in order to survive and recover. Even with countries opening up their borders and encouraging tourism, the sector is gripped by the challenge of rebuilding the consumer confidence in order to promote future tourism. Globalization has led to increased susceptibility of tourism to crises and sustainability powered with innovation maybe the way out for the sector.
Comparison of force degradation and color change of esthetic elastomeric chains

Objective: this study compared the force degradation and color change of esthetic elastomeric chains of four commercial brands. Materials and methods: the study analyzed 10 medium-force esthetic elastomeric chains with 6 links of Morelli, Orthometric, Eurodonto and 3M brands from sealed packages within the expiration date. The elastics were stretched twice their length, according to the manufacturer's recommendations, and were immersed in artificial saliva at 37°C. The forces were measured with an orthodontic dynamometer at onset and at intervals of 1, 7, 14, 21 and 30 days after immersion. The force degradation was evaluated calculating the percentage of force lost in relation to the initial force in each time interval, for each group tested separately and also between them. The color change was evaluated by visual analysis scale by observation of photographs of chain elastics before and after study completion by 31 examiners. The ANOVA test of repeated measures was applied considering 2 factors, time and groups, and the Tukey test was used for analysis of multiple comparisons. A significance value of 0.05% was adopted for the analyses. Results: the elastics showed great force degradation. After 7 days the groups presented degradation around 50% of the initial force. In the evaluation between groups, the elastics showed significantly different mean forces. When assessing color change, the scores assigned by examiners evidenced less color changes for elastics of Eurodonto brand. Conclusion: regardless of the commercial brand, transparent elastomeric chains show significant force degradation values ​​after 1 day. The scores assigned to color change evidenced that all commercial brands showed staining, with the best results for Eurodonto elastics.
Study the Effect of Doping with Chromium Chloride on Silica Aerogel Properties Prepared with Ambient Pressure

Hydrophobic silica aerogel have been prepared through two step acid-base catalysis recipe, via ambient pressure drying method. tetraethylorthosilicate was used as precursor, and trimethylchlorosilan as surface modifier. Three adopted molar concentrations of Chromium chloride are used; 0.019, 0.032, 0.051 [M]. In this paper, the molar ratio of chemicals; precursor, alcohol and catalyst, was kept constant at (1:8.6:0.23) respectively. The hydrophobic property was obtained by socking the final gel in trimethylchlorosilan -hexane solution at 6 wt. % of modifiers in hexane. The physical properties of the prepared aerogel samples; optical, structural and morphological were examined through UV-VIS spectroscopy, FTIR spectra, X ray diffraction, contact angle measurement and field emission scanning electron microscopy. The results indicate that, the doping process offers an enhancement of the aerogel hydrophobic property. As well as, the doped aerogel being of lower density, relatively have smaller particle size and of more homogenous surface.
Microfluidic capacitive sensors with ionic liquid electrodes and CNT/PDMS nanocomposites for simultaneous sensing of pressure and temperature

We report a new class of simple fluidic capacitive sensors based on microfluidic techniques, which are capable of multimodal sensing performances. The microfluidic multifunctional capacitive sensors were realized by using ionic liquids acting as electrodes in microchannels and a CNT/PDMS composite as a dielectric layer. Our microfluidic capacitive sensors offer outstanding sensor performance to detect localized pressure and even lateral pressure variation as well as ambient temperature changes. The principle of our new microfluidic capacitive sensors is explained by the electric double layer capacitance and the ion distribution along the ionic liquid electrodes. In order to demonstrate their capability for practical usage, our simple structured microfluidic capacitive sensors were applied to a bottle and human skin for monitoring the variation of pressure and temperature simultaneously. The highly sensitive microfluidic capacitive sensors were successfully applied as keypads and potential platforms for distinctively detecting various hand or finger motions such as tapping, scratching, and stacking. Our novel microfluidic multimodal capacitive sensors show great promise for making future stretchable electronic devices, such as wearable electronics, soft robotics, and artificial skin.
The Dynamics of Cointegration Between Economic Growth and Financial Development in Emerging Asian Economy: Evidence from India

The present article examines the relationship between economic growth and financial development in the context of Indian economy over the period of 15 years from June 2003 to February 2018. The study employs cointegration test, involving Johansen Juselius Cointegration and autoregressive distributed lag (ARDL) Bounds test approach to ascertain the long-run relationship between financial development and economic growth. The study further employs fully modified ordinary least squares—OLS—(FMOLS), dynamic OLS (DOLS) and canonical cointegration regression (CCR) models to ascertain the sensitivity and robustness of the estimates derived from ARDL Bounds test approach. The stability of the models employed in the study are further confirmed by rolling window analysis and the cumulative sum (CUSUM) and cumulative sum of squares (CUSUMSQ) tests. The outcome of the article reports the existence of long-run equilibrium relationship between economic growth represented by Index of Industrial Production and Financial Development represented by the Bombay Stock Exchange (BSE) Index and BSE Volume of Trade. The article also involves consumer price index as proxy for inflation, exchange rate, ratio of export to import and weighted average call rate as control variable to also examine their impact on the Indian economic growth. The study confirms the existence of Supply Leading Hypothesis, that is, existence of unidirectional causality running from financial development to economic growth in the Indian economic scenario. The outcome of the article indicates the positive and significant influence of development of financial markets represented by stock market on the economic growth.
Categorization of the water status of rice inoculated with arbuscular mycorrhizae and with water deficit

Introduccion. El deficit hidrico afecta negativamente a las plantas de arroz y limita su productividad. Se ha demostrado que la simbiosis micorrizica arbuscular mejora la productividad del arroz en condiciones de sequia. Objetivo. Proponer una nueva categorizacion para el estado de estres hidrico de las plantas de arroz inoculadas (MA) o no con hongos micorrizicos arbusculares (noMA) y expuestos al deficit hidrico (D) durante la fase vegetativa. Materiales y metodos. El experimento se llevo a cabo bajo condiciones controladas de invernadero durante los anos 2009 y 2010 en la Estacion Experimental del Zaidin, Granada, Espana. El trasplante del arroz se realizo catorce dias despues de la germinacion a macetas con una lamina de agua de 5 cm y a los 30, 40 o 50 dias despues del trasplante (DAT) se sometieron a deficit hidrico durante un periodo de quince dias, momento en que se restablecio la lamina de agua. El tratamiento de control se mantuvo durante todo el ciclo en condiciones de inundacion (ww). Las evaluaciones se realizaron a los 45, 55, 65 DAT y despues de la recuperacion a 122 DAT. La cosecha se efectuo a los 147 DAT. Resultados. La reduccion del suministro de agua evidencio estres hidrico en las plantas, manifestado por la disminucion del potencial hidrico de las hojas. La simbiosis micorrizica arbuscular siempre favorecio el estado hidrico de la planta. Se propusieron cuatro categorias de estado hidrico de plantas teniendo en cuenta los potenciales hidricos y el rendimiento agricola: sin estres (≥-0,67 MPa); estres ligero (<-0,67 a -1,20 MPa); estres moderado (<- 1,20 a -1,60 MPa) y estres severo (<-1,60 MPa). Conclusion. La categorizacion del estres debido al deficit hidrico es una herramienta de alto valor cientifico para el caso especifico del arroz, ya que esta planta tiene la capacidad de adaptacion para tolerar la presencia de una lamina de agua durante todo su ciclo biologico y es altamente susceptible al deficit hidrico.
Research on Predicting the Bending Strength of Ceramic Matrix Composites with Process of Incomplete Data

With the rapid development of machine learning, it is possible to use neural networks to build models to predict performance of Ceramic Matrix Composites (CMCs) with raw materials and environments. In the traditional material science engineering, it always took a long time to develop a new CMC. Furthermore, there is still no theoretical basis providing references to design experiments to develop CMCs with ideal performances. This work proposed a model to predict the bending strength of CMCs with a Convolution Neural Network (CNN) using 8 factors considered to affect the bending strength of CMCs mainly. For the data were all collected from papers published on journals and conferences, and there is no standard to describe an experiment, the incompleteness of data influences the performance of our model seriously. Then we tried several methods to fill the data, finally the regression imputation with a dual-hidden-layer neural network performed a significant improvement of the CNN bending strength prediction model.
Limonoid detection and profile in callus culture of sweet orange

Plant tissue culture has emerged as an important tool to produce bioactive compounds from various plant species, including the sustainable production of limonoids that are receiving considerable attention due to the benefits associated with human health such as anticancer activities. The purpose of the present study was to evaluate the capacity of limonoids aglycone production from callus culture from sweet orange cv. Pera (Citrus sinensis) seeds and identify the compounds produced in this cell line. Callus induction occurred in Murashige and Skoog medium supplemented with 2,4-dichlorophenoxyacetic (2,4-D), malt extract, agar and coconut water. For the analysis and identification of the limonoids, CG-MS-EI ion-positive mode and UPLC-QTOF-ESI were used operating in positive and negative mode. An intense peak corresponding to limonin appeared in the callus extracts at a retention time of 58.1 min. in CG-MS-EI and four major limonoids aglycone by positive ion mode UPLC-QTOF-ESI: limonin, nomilin, deacetylnomilin, and nomilinic acid. The culture medium was efficient at the bioproduction of limonoids aglycone in callus cultures of C. sinensis seeds. Therefore, data obtained from UPLC-QTOF-ESI proved its importance at identifying new compounds that benefit human health, and may assist future work in the identification of known or new limonoids in Citrus species and related genera.
Organizational Citizenship Behavior for the Environment (OCBE) on Generation X and Generation Y Millennial

OCBE in financial organizations is needed to support Sustainability Financial. The purpose of this study was to determine the influence of leadership, organizational culture and job satisfaction on Organizational Citizenship Behavior for the Environment (OCBE) in generation Y millennia and generation X. This type of research used quantitative research and survey methods. The study population was employees of financial organizations in Jakarta with a sample of 60 people. The results of this study prove that Leadership and Organizational Culture have an effect on OCBE through Work Satisfaction, except for the X generation group who stated that leadership had no effect on OCBE.
Spatio-Temporal Interurban Regularities in the Global South

The reality of people’s lives has shifted from rural to urban areas, where an ever-increasing proportion of the world’s population lives. Providing infrastructure to serve these areas, especially in the Global South, is a key task of sustainable development. A deep understanding of the spatial arrangement and scales of these urban structures and their temporal evolution can help to develop innovative solutions to issues of energy, water, or transportation infrastructures. For this purpose, in this work we study the temporal evolution of urban built-up structures (Global Artificial Impervious Area) and population distributions (Global Human Settlement Population) in four regions of the Global South (Argentina, India, Egypt, and Nigeria). We qualitatively analyze regularity through the pair correlation function and subsequently identify typical scales within the different interurban systems. In doing so, we identify that especially the large settlement objects arrange themselves in a regular way and thus typical scales exist in urban systems. Thus, settlement objects are usually located about 20 to 40 km apart from each other. This information can be used to develop sustainable infrastructure concepts, for example for passenger transport between settlements.