Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of Various Hydroxide and Salt Additives on the Reduction of Fluoride Ion Mobility in Industrial Waste

In this work, the influence of various hydroxide and salt additives on the removal of F− ions from silica gel waste, which is obtained during the production of AlF3, was examined. The leaching of the mentioned ions from silica gel waste to the liquid medium was achieved by the application of different techniques: (1) leaching under static conditions; (2) leaching under dynamic conditions by the use of continuous liquid medium flow; and (3) leaching in cycles under dynamic conditions. It was determined that the efficiency of the fluoride removal from this waste depends on the w/s ratio, the leaching conditions, and the additives used. It was proven that it is possible to reduce the concentration of fluorine ions from 10% to <5% by changing the treatment conditions and by adding alkaline compounds. The silica gel obtained after the leaching is a promising silicon dioxide source.
A comparative analysis of the relationship between flood experience and private flood mitigation behaviour in the regions of England

There has been a move towards a more integrated approach to flood risk management, which includes a stronger focus on property level measures. However, in England the uptake of these measures remains low. Flood experience has been found to influence preparedness (i.e., the uptake of measures), but even experience does not always result in an increase in preparedness. We investigate the variations in the relationship between experience and preparedness for the regions of England as defined by the Environment Agency. Analysis of survey data collected by the Environment Agency among the at risk population between 1997 and 2004 was undertaken to determine the differences between the seven regions. We find that in the South West, Southern and Anglian regions increases in preparedness with increasing experience are higher compared to other regions. In the Thames, Midlands and North West regions the preparedness increases less with increasing experience. We explore the influence of other factors influencing flood mitigation behaviour that have been previously found in the literature and find that the differences between regions are correlated with the severity of experienced flooding and whether English is the first language of the respondents.
Enhanced self-regulation: The case of Facebook’s content governance

Content regulation on digital platforms has become a contested issue on the public and scholarly agendas. To understand how digital platform providers experiment with making commitments regarding their regulation, this article process-traces Facebook’s content regulation to ask how it self-regulates despite constant pressures for policy intervention. The first part of the article shows how Facebook moved from its initial “thin” self-regulatory regime toward what I call “enhanced self-regulation,” which relies on first-party and independent third-party intermediaries. Thereafter, I show how Facebook self-regulated the balance between public and private interests over time and across the regimes. The findings suggest that powerful actors such as Facebook can innovate in self-regulation by reallocating content-related responsibilities to intermediaries and subsequently create polycentric governance regimes. Lessons about how self-regulators that face public criticism can make more credible commitments to public interests are then drawn from the strengths and weakness of enhanced self-regulation.
Assessing general attentiveness to online panel surveys: the use of instructional manipulation checks

ABSTRACT In online surveys, the use of manipulation checks aimed at measuring respondents’ attentiveness has become common. More than being measures of attentiveness pertaining to a specific survey, instructional manipulation checks (IMC) could work as generic measures of the quality of the answers a person gives when completing a questionnaire. By using several waves of the ITANES (Italian National Election Study) – University of Milan online panel survey, the article shows that the outcome of an IMC predicts the quality of the answers a respondent gives in previous and subsequent waves of the panel. Moreover, through a survey experiment that randomizes the length of an IMC we show that, overall, the answers’ quality of ‘attentive’ respondents assigned to different IMCs do not substantially vary. Findings also show that IMCs are reliable measures, as the outcome of two IMCs placed in two consecutive waves proved to be highly associated.
The Impact of Compression Duration on the RhoA, P75, S100 Expression in Spinal Cord Injury in Rat

Background: Compression of the spinal cord induces alterations in protein expression of neurons and glia cells, which in turn triggers a cascade of pathophysiologic events. It's well-documented that activation of inhibitory proteins following spinal cord injury stimulates activation of the RhoA via neurotrophin receptor p75 (p75NTR), which causes promotion of apoptotic cell death and inhibiting axon outgrowth. Elucidating the underlying factors driving the expressions during sustained compression is important to develop new therapeutic strategies. Objectives: To investigate the impact of compression duration on the RhoA, P75, and S100 expression in spinal cord injury model in rats. Methods: We investigated the impact of compression duration on the expression of RhoA, p75NTR, and S100β in rats with spinal cord injury (SCI). Initially, rats were subjected to SCI using an aneurism clip at the T9 vertebrae lamina for 3 sec or 10 min. Sham group was subjected to laminectomy only. We compared spinal cord histopathology at 3 and 14 days after injury for both short and prolonged compressive surgery groups. At the respective scarify times points, the rats were sacrificed, and the pathology of the injury was studied using light microscopy and immunohistochemistry. Results: We found a greater expression level of p75NTR, S100β, and RhoA in the prolonged compression group compared to the short compression group. The difference was statistically significant, indicating that earlier decompression can prevent the progress of secondary injuries due to higher expression levels of p75NTR, S100, and RhoA. Conclusions: This study demonstrated that early decompression of the spinal cord through the changes in p75NTR, S100β, and RhoA expression may modulate secondary injury events. Besides, it was found that using different inhibitors, especially for RhoA, might improve SCI-induced regeneration.
CARACTERIZAÇÃO FÍSICO-QUÍMICA DE GABIROBA (Campomanesia lineatifolia) E MURTA (Blepharocalyx salicifolius) NATIVAS DA REGIÃO SERRANA DE IBIAPABA-CE

In Brazil, consumer preference of tropical native fruits has increased; however, many fruits are not commercially exploited, such as gabiroba (Campomanesia lineatifolia) and myrtle (Blepharocalyx salicifolius), from the Myrtaceae family. The present study aimed to evaluate the physical, physico-chemical, and functional characteristics of gabiroba and myrtle, harvested from native plants in the mountainous region of Ibiapaba–CE. The following characters were analyzed: pH, soluble solids, total acidity, total extractable polyphenols, ascorbic acid, and antioxidant activity by using the ABTS method. After pulping, the samples were divided into two groups. From the results, it was found that gabiroba had a low total acidity value (0.12 ± 0.01%) indicating a higher level of sweetness relative to myrtle. Myrtle presented values of longitudinal (0.94 cm) and transverse(1.35 cm) diameters, fresh weight (0.85g), pulp yield (68.0%), pH (4.5 ± 0.0), and total soluble solids (23.6 ± 1.7 °Bx) similar to those obtained in other studies. Bioactive compounds in gabiroba and myrtle included phenolics (GAE 229.37 ± 1.04and 511.65 ± 1.34mg/100g), ascorbic acid (74.44 ± 0.03 369.1 ± 0.28 mg/100g), and antioxidants (14.54 ± 1.0 and 16.05 ± 0.63 μ Mtrolox/g). Therefore, these fruits have the potential to be used as functional foods characterized by various health benefits.
Pengaruh Implementasi Problem Based Learning Terhadap Motivasi Berprestasi dan Kemampuan Berpikir Kritis Pada Pembelajaran Tematik Terpadu Kelas IV SD Gugus IV Kecamatan Mendoyo

Penelitian ini bertujuan untuk mengetahui pengaruh model problem based learning terhadap motivasi berprestasi dan kemampuan berpikir kritis pada siswa kelas IV SD Gugus IV Kecamatan Mendoyo. Penelitian ini menggunakan pendekatan eksperimen semu dengan pola dasar non equivalent control group design. Populasi dalam penelitian ini sebanyak 151 orang siswa. Sampel penelitian berjumlah 46 siswa yang ditentukan dengan teknik random sampling. Data kemampuan berpikir kritis siswa dikumpulkan dengan rubrik penilaian dan data motivasi berprestasi dikumpulkan dengan kuesioner berbantuan metode daring berupa google form. Data dianalisis menggunakan MANOVA berbantuan SPSS 17.00 for windows. Hasil Penelitian menunjukkan bahwa: 1. ) motivasi berprestasi siswa yang mengikuti model problem based learning secara signifikan lebih baik daripada siswa yang mengikuti pembelajaran dengan model pembelajaran konvensional, 2. ) kemampuan berpikir kritis siswa yang mengikuti model problem based learning secara signifikan lebih baik daripada siswa yang mengikuti pembelajaran dengan model pembelajaran konvensional, 3. ) secara simultan motivasi berprestasi dan kemampuan berpikir kritis antara siswa yang mengikuti model problem based learning secara signifikan lebih baik daripada siswa yang mengikuti model pembelajaran konvensional.
Phytochemical Analysis, In Vitro Evaluation of Antioxidant and Free Radical Scavenging Activity of Simarouba glauca Seeds

Traditional Indian medicinal plant Simarouba glauca is a highly sacred plant known as “Paradise Tree or Lakshmi Taru” which is recognized for its pharmacological and pharmaceutical properties. The present study was envisaged to know the in vitro phytochemical, antioxidant and free radical scavenging activity of S. glauca seeds. Petroleum ether was used as a solvent to extract plant material using hot extraction method. In our investigation, phytochemical analysis was carried out qualitatively and quantitatively and for the evaluation of antioxidant profile carried out in vitro studies on free radical scavenging potential by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) scavenging, decolourization potential of 2,2’-azino-bis[3-ethyl benzthiazoline-6-sulfonic acid (ABTS) and ferric reducing antioxidant potential (FRAP) assay were determined in in vitro studies. The qualitative phytochemical analysis of this plant was positive for flavonoids, fatty acids, proteins, steroids and terpenoids and in quantitative analysis total flavonoid content was 17.32±0.12 mg/μg quercetin equivalent, total proanthocyanidin content exhibited 62.91±0.61 µg catechin equivalent, total phenol content exhibited 17.75±5.82 μg gallic acid equivalent and the total flavonol content was 1.54±0.01 µg quercetin equivalent of the extract. In the antioxidant profile, the maximum DPPH scavenging activity exhibited was 74% with an IC 50 value 137.89 µg/mL, the maximum ABTS scavenging activity exhibited was 35% with an IC 50 value 337.29 µg/mL and FRAP scavenging activity exhibited 62.5 µg/mL as ascorbic acid equivalents (AAE/ml) concentration. These findings evidenced that, the petroleum ether extract of S. glauca seeds has potential source of natural antioxidants and can be used it as therapeutic medicine.
High-quality K0.47Na0.53NbO3 single crystal toward high performance transducer

A large-sized, high-quality single crystal of K0.47Na0.53NbO3 was grown by the top-seeded solution growth method. A complete set of elastic, dielectric, and piezoelectric constants for a [001]C-poled K0.47Na0.53NbO3 single crystal was determined via combined resonance and ultrasonic methods. The [001]C-poled K0.47Na0.53NbO3 (KNN47) single crystal exhibits a large piezoelectric coefficient (d33 = 220 pC N−1), high coupling coefficients (k33 = 0.759 and kt = 0.702), high dielectric constants (eT11 = 2194 and eS11 = 2162), and relatively high elastic compliance constants (SE11 = 14.3 × 10−12 N m−2 and SE33 = 17.6 × 10−12 N m−2). Furthermore, a large electrical field induced strain of 0.16% was measured from the slope in the unipolar strain versus electric field dependence. The piezoelectric coefficient, , was determined to be as high as 401 pm V−1, likely resulting due to the morphotropic phase boundary around x = 0.5. These excellent properties make KNN47 a good candidate for application as a high-performance transducer material.
Fabrication, performance evaluation and optimization of Sal (shorea robusta) seed decorticator

Sal (Shorea robusta) seed is a nontimber forest product, mainly processed for its oil. This oil is used in various food and nonfood industries. Prior to extraction of oil, sal seeds are manually broken to obtain sal kernel. This traditional manual de-shelling process is very tedious, time consuming and unhygienic. Hence, in this research, a sal seed decorticator was designed, fabricated and its performance was evaluated. The performance parameters of the machine were tested with varying moisture content from 10.49% to 21.95% (d.b) and different concave clearance varying from 10 mm to 19 mm. The decorticating efficiency, machine efficiency, and kernel percentage were found to have a maximum value of 99.15 ± 0.04%, 93.62 ± 0.87%, and 62.71 ± 1.73%, respectively at 13.63% (d.b) moisture content and 13 mm concave clearance. Results were fitted in response surface methodology to optimize the parameters and to find the level of significance between the independent and dependent variables.
Challenging the timely prediction of landside early warning systems
with multispectral remote sensing: a novel conceptual approach tested
in the Sattelkar, Austria

Abstract. While optical remote sensing has demonstrated its capabilities for landslide detection and monitoring, spatial and temporal demands for landslide early warning systems (LEWS) were not met until recently. We introduce a novel conceptual approach for comprehensive lead time assessment and optimisation for LEWS. We analysed time to warning as a sequence; (i) time to collect, (ii) to process and (iii) to evaluate relevant optical data. The difference between time to warning and forecasting window (i.e. time from hazard becoming predictable until event) is the lead time for reactive measures. We tested digital image correlation (DIC) of best–suited spatiotemporal techniques, i.e. 3 m resolution PlanetScope daily imagery, and 0.16 m resolution UAS derived orthophotos to reveal fast ground displacement and acceleration of a deep–seated, complex alpine mass movement leading to massive debris flow events. The time to warning for UAS and PlanetScope totals 31 h/21 h and is comprised of (i) time to collect 12/14 h, (ii) process 17/5 h and (iii) evaluate 2/2 h, which is well below the forecasting window for recent benchmarks and facilitates lead time for reactive measures. We show optical remote sensing data can support LEWS with a sufficiently fast processing time, demonstrating the feasibility of optical sensors for LEWS.
Interseeding Camelina and Rye in Soybean with Varying Maturity Provides Soil Cover without Affecting Soybean Yield

Low adoption to utilize cover crops interseeded into soybean (Glycine max (L.) Merr. ), in the northern Plains in the USA, is due to a short growing season and a few adapted winter-hardy species. The objective was to evaluate the impact of interseeded winter camelina (Camelina sativa (L.) Crantz) and winter rye (Secale cereale L.) using different soybean relative maturities on soybean yield, canopy coverage, spring cover crop biomass, and subsequent wheat (Triticum aestivum L.) yield. Cover crops interseeded into early-maturing (0.4–0.8) soybean cultivars had more fall coverage compared with the 0.9 maturity cultivar, but the spring biomass was similar for all maturities. The soybean yield of the 0.9 cultivar was significantly higher, 2365 kg ha−1 compared with 2037 kg ha−1 for the 0.4 cultivar. Rye outperformed winter camelina and had higher fall canopy cover (15 vs. 7%), spring canopy cover (16% vs. 4%), and higher spring biomass (313 vs. 100 kg ha−1 dry matter). Spring wheat, after rye, yielded 90% of the check. It is not recommended to plant spring wheat following winter rye, but there was no negative yield effect from winter camelina. Interseeding cover crops into soybean in the northern Plains is possible but needs further research to optimize interseeding systems.
Novel high voltage gain dc–dc converter with dynamic analysis

Correspondence Reza Ebrahimi, Renewable Energy Research Centre, Department of Electrical Engineering, Sahand University of Technology, Tabriz, Iran. Email: r.ebrahimi@sut.ac. ir Abstract This study proposes a non-isolated dc–dc converter based on a coupled inductor and switch-capacitor–boosting techniques. The goal of the proposed topology is to increase the voltage gain with low-duty cycle, so voltage stresses are decreased across power switches and diodes. The power switches are controlled by pulse width modulation. The common ground of input and output of the proposed converter makes it suitable for many applications such as photovoltaic systems. The proposed converter topology is discussed in continuous and discontinuous operation modes. A dynamic analysis of the proposed converter is also provided. Simulation and experimental verifications are presented to prove the effectiveness of the proposed topology.
Mediating effect of satisfaction in the relationship between customer experience and intention to reuse digital banks in Korea

Digital banks based on new transaction systems, such as those developed in financial technology contexts, have begun to challenge and compete with traditional banks. Against this backdrop, in this study I examined how customer experience of digital banking, including usefulness, convenience, employee–customer engagement, and security, affected their satisfaction and reuse intention, and how customer satisfaction mediated the relationship between customer experience and reuse intention. To do this I conducted a survey with 247 Korean digital bank users. Structural equation modeling was used to test the relationships between the variables and further compare full and partial mediation models. The empirical results reveal that the four customer experience variables positively influenced reuse intention through satisfaction. These findings add to understanding of the mechanisms of customer reuse of digital banks, and provide practitioners with meaningful implications for developing strategies to improve customer and bank management.
Numerical research of probabilistic characteristics of quality by the piece the component of mix with increase in number of doses given by the batcher

In work it is carried out the mathematical analysis of these pilot studies of the automatic conveyor mixer (non-mixer) and drum dozers for receiving mix of single elements of the components having similar standard overall dimensions but differing in internal properties at effective end use. The relevance and novelty of development are shown on the example of receiving the general party of composite product from small similar parties, at the determined forming of its uniformity, with the set qualitative and quantitative characteristics from single heterogeneous components. The analysis of influence of ratios of components in synthesizable mix on its quality is carried out. The main evaluation criterion was the quantity of doses of components at the same time given by batchers and its influence on final parameters of the received mixes.
Leading innovation through employees’ participation: Plural leadership in employee-driven innovation practices

Plural leadership has gained a lot of attention, challenging traditional individualistic leadership models and moving the focus to the dynamic and collective nature of leadership. This leadership paradigm seems particularly relevant in situations where plurality is involved to cope with complexity and uncertainty: a valid example is the context of innovation. In this study, we explore how plural leadership works in the context of employee-driven innovation (EDI), since these initiatives can provide interesting insights about the interactions between formal and informal leaders. Our empirical analysis supports the idea that EDI involves plural leadership. We identified some similarities with two of the streams theorized by Denis, Langley and Sergi (2012) in “Leadership in the Plural”, namely “sharing leadership in teams” and “producing leadership through interaction. ” Through multiple case studies, it was possible to extend those streams and to deepen our understanding of the relationship between formal and informal leaders. We conceptualized two leadership roles (i.e., process leadership and content leadership), which enable plural leadership to meet the competing demand of exploration and exploitation, and we revealed elements that help explain why and when leadership is shared between multiple individuals.
Augmented Multicenter Graph Convolutional Network for COVID-19 Diagnosis

Chest computed tomography (CT) scans of coronavirus 2019 (COVID-19) disease usually come from multiple datasets gathered from different medical centers, and these images are sampled using different acquisition protocols. While integrating multicenter datasets increases sample size, it suffers from inter-center heterogeneity. To address this issue, we propose an augmented multicenter graph convolutional network (AM-GCN) to diagnose COVID-19 with steps as follows. First, we use a 3-D convolutional neural network to extract features from the initial CT scans, where a ghost module and a multitask framework are integrated to improve the network's performance. Second, we exploit the extracted features to construct a multicenter graph, which considers the intercenter heterogeneity and the disease status of training samples. Third, we propose an augmentation mechanism to augment training samples which forms an augmented multicenter graph. Finally, the diagnosis results are obtained by inputting the augmented multi-center graph into GCN. Based on 2223 COVID-19 subjects and 2221 normal controls from seven medical centers, our method has achieved a mean accuracy of 97.76%. The code for our model is made publicly.1
Oral monophthong vowel qualities of the Jamee language in Aceh

Jamee language is one of the languages spoken in Aceh Province, in the super-diverse country, Indonesia. Previous studies have noted inconsistencies in the number of oral monophthong vowels produced by the Jamee speakers. Accordingly, this research aims to investigate the qualities of the oral monophthong vowels of the Jamee language that are still spoken today. Ten female speakers were chosen as the informants to provide data for this research. They were recorded to produce words that contained the target vowels. The recordings were then transferred to Praat software in spectrograms, and measurements on the midpoint of each vowel for their F1 and F2 in Hertz were conducted. In Excel, the measurements were converted in the Bark scale, and the average values of each vowel were plotted on an F1-F2 chart. The results further showed that there are currently seven monophthong vowels in this language, they are /i/, /e/, /ɛ/, /a/, /o/, /u/ and /ↄ/. This acoustic study has calculated the approximate measurements for the vowels based on their F1 and F2 from the spectrograms in Praat. The qualities of these vowels are /i/ with F1 = 463 Hz and F2 = 2484 Hz, /e/ with F1 = 550 Hz and F2 = 2493 Hz, /ɛ/ with F1 = 641 Hz and F2 = 2412 Hz, /o/ with F1 = 535 Hz and F2 = 1434 Hz, /ↄ/ with F1 = 713 Hz and F2 = 1312 Hz, /u/ with F1 = 489 Hz and F2 = 1165 Hz, and finally /a/with F1 = 887 Hz and F2 = 1898 Hz. The findings of this research are seen as pivotal in the field of phonology as it assists linguists in documenting and preserving a minority language in Aceh Province, Indonesia.