Miracle-dz/UniFAR-FTUs huggingface dataset:
Model Flipped Classroom dan Discovery Learning terhadap Kemampuan Pemahaman Konsep dan Pemecahan Masalah Matematis

Tujuan penelitian ini untuk mengetahui pengaruh model pembelajaran ( flipped classroom dan discovery learning ) terhadap kemampuan pemahaman konsep, pengaruh model pembelajaran ( flipped classroom dan discovery learning ) terhadap kemampuan pemecahan masalah matematis, dan pengaruh model pembelajaran ( flipped classroom dan discovery learning ) terhadap kemampuan pemahaman konsep dan pemecahan masalah matematis. Penelitian ini dilakukan di SMA Negeri 1 Sumber Jaya. Jenis eksperimen yang digunakan adalah Quasy Experimental Design, dengan desain Posttest Only Control Group Design . Populasinya adalah peserta didik kelas XI dan sampel penelitian adalah XI IPA 1 berjumlah 31 peserta didik sebagai kelas eksperimen 1 dengan penerapan model flipped classroom , XI IPA 2 berjumlah 31 peserta didik sebagai kelas eksperimen 2 dengan penerapan model discovery learning , dan XI IPA 3 berjumlah 31 peserta didik sebagai kelas kontrol dengan penerapan model direct instruction. Teknik pengumpulan data menggunakan observasi dan tes. Analisis data menggunakan uji Manova dan dilakukan uji lanjutan menggunakan uji Tukey. Penelitian ini menghasilkan adanya pengaruh model pembelajaran ( flipped classroom dan discovery learning ) terhadap kemampuan pemahaman konsep, adanya pengaruh model pembelajaran ( flipped classroom dan discovery learning ) terhadap kemampuan pemecahan masalah dan adanya pengaruh model pembelajaran ( flipped classroom dan discovery learning ) terhadap kemampuan pemahaman konsep dan pemecahan masalah matematis.
Impacts of Public Telecommunications Policy on Industrial Geography and Welfare

We include a clear distinction between transport and telecommunication infrastructures. We assume that public expenditure enables Information Technology Enabled Services to be traded abroad without the use of traditional transport modes. We show that the increase in the knowledge spillovers mainly related to mobile human capital and trade of services can develop industrialization in developing country, leading to less spatial inequalities. This latter must invest more in telecommunication than in transportation infrastructures to attract both industrial and knowledge activities. The welfare level will be improved for skilled workers in both countries when public policy decreases the cost of trading knowledge.
‘Ey, wait, wait, gully!’ Style, stance and the social meaning of attention signals in East London adolescent speech

Recent accounts of discourse-pragmatic (DP) variation have demonstrated that these features can acquire social indexical meaning. However, in comparison to other linguistic variables, DP features remain underexplored and third-wave perspectives on the topic are limited. In this article, I analyse the distribution, function and social meaning of the ‘attention signals’ – those features which fulfil the explicit function of eliciting the attention of an individual – in just over 35 hours of self-recordings of 25 adolescents collected during a year-long sociolinguistic ethnography of an East London youth group. This leads me to identify an innovative attention signal – ey. Distributional analyses of this feature show that ey is associated with a particular Community of Practice, the self-defined and exclusively male ‘gully’. By examining the discourse junctures at which ey occurs, I argue that this attention signal is most frequently used by speakers to deploy a ‘dominant’ stance. For gully members, this feature is particularly useful as an interpersonal device, where it is used to manage ingroup/outgroup boundaries. Concluding, I link the use of ey and the gully identity to language, ethnicity and masculinity in East London.
The Great Whale River Ecosystem: Ecology of a Subarctic River and its Receiving Waters in Coastal Hudson Bay, Canada

ABSTRACT The Great Whale River in subarctic Quebec, Canada, is one of the main freshwater inflows to Hudson Bay. This region is experiencing rapid climate change, with pronounced impacts on the cryosphere, and ongoing socio-economic development that may accelerate with future road and shipping links. This review integrates information available to date on the Great Whale River ecosystem, which we define as the river and its watershed, its source lakes and streams, and the river mouth environment and beyond the shoreline in southeastern Hudson Bay. Our aim was to define the current state of this ecosystem as a baseline for ongoing observations, with emphasis on (1) the distribution of water masses, optical characteristics, freshwater discharge, and ice cover; (2) concentrations and fluxes of carbon, nutrients, and contaminants; (3) abundance, production and diversity of the organisms associated with the sea ice ecosystem; (4) plankton abundance, biomass, production, and assemblages; (5) benthic abundance and diversity; (6) fish abundance, diversity and population dynamics; (7) marine mammal biology; and (8) global change impacts on freshwater and marine habitats. This synthesis provides a first step towards the integrated management of the Great Whale River ecosystem, and for similar freshwater-marine systems in the subarctic region.
Frazil Ice in the Antarctic Marginal Ice Zone

Frazil ice, consisting of loose disc-shaped ice crystals, is the first ice that forms in the annual cycle in the marginal ice zone (MIZ) of the Antarctic. A sufficient number of frazil ice crystals form the surface “grease ice” layer, playing a fundamental role in the freezing processes in the MIZ. As soon as the ocean waves are sufficiently damped by a frazil ice cover, a closed ice cover can form. In this article, we investigate the rheological properties of frazil ice, which has a crucial influence on the growth of sea ice in the MIZ. An in situ test setup for measuring temperature and rheological properties was developed. Frazil ice shows shear thinning flow behavior. The presented measurements enable real-data-founded modelling of the annual ice cycle in the MIZ.
Rheological improvement of TiO2 nanoparticles modified by dicarboxylic acids

Abstract In this research work, the improvement of the colloidal stability of titanium dioxide (TiO2) is presented by means of surface chemical modification using variable chain dicarboxylic acids such as pimelic acid (PA), glutaric acid (GA), and azelaic acid (AA). The characterization of the organic coating was carried out by transmission electron microscopy, infrared spectroscopy, and nuclear magnetic resonance. The improvement of dispersion, rheological behavior, and colloidal stability were evaluated using light techniques and mathematical rheological modeling. An improvement in the integration of modified nanoparticles was demonstrated regardless of the chain length of the organic coating. The dynamic rheological measurements of the suspensions confirmed the decrease in viscosity by two orders of magnitude (GA at low concentrations) and by an order of magnitude (when PA does not exceed 60% and AA remains at least 50% concentration), due to the decrease in the force necessary to break the agglomerates. It was found that the optimal concentrations maintain the fluidity of the suspensions studied by rheological models; supporting the behavior observed in dynamic rheological measurements. The H2O/TiO2 and H2O/GA-TiO2 suspensions show good behavior when concentrations around 30% are maintained; however, when the chain length is increased, the amount of material plays an important role, that is, there is an optimum value of around 50% for H2O/PA-TiO2 and H2O/AA-TiO2 suspensions. A change in the pseudoplastic behavior of H2O/PA-TiO2 was found when higher than optimal concentrations are used due to the increase in dipole interactions, which are manifested as an increase in viscosity. While for the suspension of H2O/AA-TiO2 as the amount of material increases, the formation of microfibers increases and induces a decrease in viscosity. The mathematical modeling of the suspensions made it possible to determine the appropriate concentration threshold to reduce the energy required to transport them. Graphical Abstract
Fragile X Syndrome Secondary to in Vitro Fertilization With a Family Egg Donor: A Case Report and Review of the Literature

Objective: To evidence the need for screening fragile X syndrome (FXS) in egg donors in assisted reproduction protocols. Case report : This is the report of a boy with FXS who inherited the mutated allele from an ovule donated by the mother´s sister through an assisted reproduction protocol. Identifying premutation (PM) carriers of FXS amongst gamete donors isn’t part of the obligatory genetic analysis for donors and is only considered by most of the in vitro fertility societies and guidelines as part of the extension screening tests. Conclusion: It is cost-effective to do pre-conceptional screening for the PM or full mutation (FM) of the FMR1 gene affected in FXS in every woman undergoing assisted reproductive methods, including gamete donors even without a positive family history of intellectual disabilities. This case supports the need of rethinking the guidelines on the necessary gamete donor screening tests in assisted reproduction protocols.
A Noble and Economical Method for the Synthesis of Low Cost Zeolites From Coal Fly Ash Waste

ABSTRACT Coal fly ash (CFA) is one of the major global pollutants, which is continuously invading a huge amount of land every year; consequently, there is depletion of barren land. Even, in the 21st century, a hundred per cent utilisation of fly ash is not achieved. Here, in the present research work, fly ash is processed initially with the mineral acids followed by the alkali treatment under optimised conditions. The alkali treatment of fly ash revealed the formation of geopolymers like the structure of variable shapes and sizes. The confirmation and identification of the final desilicated product were done by infrared spectroscopy i.e. (FT-IR), X-ray diffraction (XRD), X-Ray fluorescence (XRF), Field Emission Scanning Electron Microscopy (FESEM-EDS) and Transmission Electron Microscopy (TEM). The size of the zeolitic product was varying from 60 to 120 nm in width and 80 to 700 nm in length. While the shape of the particles was varying from spherical to needle and rod-shaped. The current method suggested the transformation of fly ash waste into the zeolite product. The synthesis of such particles from fly ash makes the process and product economical and eco-friendly by providing a safe and environment-friendly disposal of fly ash.
Toward the e-loyalty of digital library users: investigating the role of e-service quality and e-trust in digital economy

PurposeThis study aims to investigate the role of e-service quality and e-trust for achieving e-loyalty among digital library users in the digital economy. The current study examined the mediation effect of e-trust in the connection between e-service quality and e-loyalty.Design/methodology/approachCross-sectional design was applied for the purpose of data collection and empirical findings of the study. Survey method was used for the purpose of data collection from 783 online digital libraries users.FindingsResults reveal that e-service quality positively predicts e-trust in digital economy. Moreover, in digital economy e-trust predicts the e-loyalty. The findings also reveal that e-trust mediates the relationship between e-service quality and e-loyalty links.Originality/valueThe finding of study suggested that individual level e-trust have a strong effect on e-loyalty in digital economy. Individual level aspects in term of e-service quality have a direct effect on e-trust to improve their e-loyalty. The finding indicated that digital libraries users in future will be more loyal toward e-service quality providers. The results are useful for the management of digital libraries and academia for future. This is the first study that includes e-service quality, e-trust and e-loyalty in the context of digital economy.
Behavior Intention to Use Online Zakat: Application of Technology Acceptance Model with Development

Indonesia is one of the countries with the largest Muslim population in the world, but the level of zakat is not too high. This can be seen from the low amount of zakat that has been successful compared to the potential for zakat. In view of this fact, the Zakat Management Organization (OPZ) implements a digitalization strategy for collecting zakat funds, including the Magelang Regency. This study was conducted to understand the intention of the community/muzakki to pay zakat online. This study uses the Technology Acceptance Model (TAM) theoretical framework by adding a moderating variable to electronic word of mouth (eWOM). This study used a quantitative approach with 135 respondents. Data were collected randomly from the Internet (online). Structural equation modeling (SEM) and partial least squares (PLS) were used for data analysis. The findings of this study suggest that attitudes can be expressed by perceived ease of use , perceived usefulness, and electronic word of mouth (eWOM). Meanwhile, behavioral intention in this study proved to be reliable by electronic word of mouth (eWOM) and attitude. The results of the moderation effect test prove that electronic word of mouth (eWOM) in this study weakens the relationship between perceived ease of use (PEoU) and attitude. Electronic word of mouth (eWOM) can assess the relationship between perceived usefulness (PU) and attitudes and behavioral intentions.
Strategies of denial: women’s experiences of culture of disbelief and discreditation in the treatment of asylum claims on the grounds of female genital cutting (FGC)

ABSTRACT Drawing from qualitative research with female asylum seekers in Scotland who had claimed asylum to protect their daughters from female genital cutting (FGC), this article examines the workings of the culture of disbelief during asylum interviews. In this article I illustrate how the treatment of FGC-related asylum claims is informed by the convergence of hostile environment, gender and refugee stereotypes and the dominant representations of FGC. I argue that at the collision of anti-immigration and anti-FGC discourses, asylum seeking women are confronted with conflicting expectations whereby they are simultaneously expected to reinforce the constructions of themselves as victims of ‘backward’ cultural practices, and to narrate their vulnerability beyond cultural terms in order to meet the criteria for asylum outlined in the Refugee Convention. This paper illuminates the multiple strategies asylum interviewers employ to undermine women’s lived experiences of persecution, revealing the contradictions in how interviewers simultaneously question the threat of FGC, women’s inability to resist these practices and women’s own experiences of being subject to FGC. Through this, I problematise the assumptions that FGC as an ‘extreme’ form of gender-based violence would offer an exception to refugee women’s persistent struggles in being recognised as victims of persecution.
How Stable Are Transport-Related Attitudes over Time?

https://doi.org/10.32866/001c.24556 Findings The utility of attitudes in travel demand forecasting requires predictability. Any attempt to simulate future attitudes, as is done in such models, would be impractical if they were subject to substantial unpredictable variation over time. We investigate the stability of attitudes using waves of the COVID Future survey answered 3.5–11 months apart. Attitudinal statements have moderate stability while factor-analyzed attitudes demonstrate moderately high stability. This stability is consistent across demographic groups. Attitudes about COVID-19 are particularly stable, while those about remote work and communication are more unstable. We conclude that attitudes display enough stability over 6 months to be useful.
Time-Domain Aeroelasticity Analysis by a Tightly Coupled Fluid-Structure Interaction Methodology

A tightly coupled fluid-structure interaction (FSI) methodology is developed for aeroelasticity analysis in the time domain. The preconditioned Navier–Stokes equations for all Mach numbers are employed and the structural equations are tightly coupled with the fluid equations by discretizing their time derivative term in the same pseudo time-stepping method. A modified mesh deformation method based on reduced control points radial basis functions (RBF) is utilized, and a RBF based mapping algorithm is introduced for data exchange on the interaction interface. To evaluate the methodology, the flutter boundary and the limit cycle oscillation of Isogai wing and the flutter boundary of AGARD 445.6 wing are analyzed and validated.
Alpha and beta diversity of planktonic microcrustaceans are associated with environmental heterogeneity in the Frades River Basin, Brazil

ABSTRACT Plankton in rivers are good indicators of water quality and their study along the longitudinal axis allows for understanding the interactions between natural and anthropogenic variations and diversity at different spatial scales. We compared the taxonomic biodiversity of planktonic microcrustaceans in two sections of the Frades River Basin, Brazil. Water and microcrustaceans were sampled in August 2018, April 2019, July 2019, and October 2019 in the basin. We recorded 43 taxa as the regional diversity of microcrustaceans. Alpha diversity was statistically higher in the upper section of the basin. The analysis of indicator species showed that nine species were characteristic of the studied sections. The upper section was represented by Nicsmirnovius paggii, Acroperus tupinamba, Alonella dadayi, Alona guttata, and Microcyclops finitimus and characterized by higher dissolved oxygen, higher values of pH of water and lower nitrate and total coliforms concentrations. Diaphanosoma birgei, Alona sp. , Grimaldina brazzai, and Ilyocryptus spinifer were characteristic of the lower sections of the basin, with the highest concentrations of nitrate and total coliforms. The microcrustaceans in the lower sections were limited by the gradient of environmental conditions, making local communities simpler (low species richness) and with few species probably adjusted to narrow ranges of environmental conditions.
An Innovative Method for the Extraction of Phenolic Compounds from Polygonum Cuspidatum

Supercritical CO2 extraction of resveratrol, rutin, and quercetin from Polygonum cuspidatum was performed in laboratory scale extraction system with ethanol or water as co-solvent. In this work, the effect of operating parameters such as co-solvent concentration, pressure and temperature on extraction yield were investigated. Extraction were carried out at temperatures of 40-80oC, pressures of 10-40 MPa with a fixed CO2 flow rate (3 mL/min) and extraction time (3 h). The results showed that the presence of ethanol and water as co-solvent could enhance the solvent power or the selectivity of SCCO2 to extract resveratrol, rutin, and quercetin. The increasing concentration of ethanol and water affected the extraction yield of them. By changing the temperature and pressure, the vapor pressure enhancement of extractable compounds increase analyte solubility. This result revealed that SCCO2 extraction with co-solvent is applicable method for extraction of bioactive compounds of plant and may lead to an advanced plant biomass components extraction technology.
Effects of extraction method, solvent and time on the bioactive compounds and antioxidant activity of Tetrigona apicalis Malaysian propolis

Propolis, a type of resin produced by honey bees, has many medicinal properties. Various extraction methods and conditions had been studied to extract the bioactive compounds from raw propolis. However, different extraction methods and extraction conditions were reported to exhibit different extraction efficiencies. Hence, in this study, different extraction methods, namely maceration, ultrasound-assisted extraction and combination of maceration and ultrasound-assisted extraction, as well as extraction solvents and extraction times, were examined to investigate the effects on the amount of total phenolic content, total flavonoid content and antioxidant activity of Tetrigona apicalis Malaysian propolis extract. Experimental results showed that combination method of maceration and ultrasound-assisted extraction is the best method for extracting the highest amount of total phenolic content with 70% aqueous ethanol as solvent and obtained at the longest extraction time (24 h of maceration and 60 min of ultrasound-assisted extraction). While for total flavonoid content, maceration exhibited the best extraction method and the highest amount of flavonoid was obtained from 80% aqueous ethanol at the lowest extraction time (8 h). Meanwhile, antioxidant activity was found to have strong correlations with phenolic and flavonoid contents. In conclusion, it is crucial to develop effective extraction method and conditions depending on the targeted compounds and desired properties to enhance the extraction efficiency.
Mini scale production of Brazilian Cherry Fruits (Eugenia uniflora L.) for the first time in NSTU campus in Bangladesh & the determination of antioxidant activity of different solvent extracts of ripe and non-ripe Brazilian Cherry Fruits

The aim of this research is to cultivate Brazilian Cherry Fruits (Eugenia uniflora L.) Plants in NSTU (Noakhali Science and Technology University) Campus, Noakhali, Bangladesh for fruits production and to determine the qualitative antioxidant test, antioxidant activities and total phenolic content of different solvent extracts (Water, Methanol and Ethanol) of Ripe Brazilian Cherry Fruits in Red Color and compare those activities with non-ripe Brazilian Cherry fruits in Green color. The qualitative antioxidant test was determined by simple TLC method and antioxidant activity was determined by DPPH radical inhibition method while the total phenolic content was determined by Folin-Ciocalteu method. The result of the qualitative determination of Antioxidant test indicated that all extracts of Brazilian Cherry Fruits contain high antioxidant compounds. Among the analyzed fruits of all extracts, in both Ripe and Non-Ripe stage, the water extract of non-ripe Brazilian Cherry Fruits (BC-GC-W) showed the highest DPPH radical scavenging activity (73.66%) and showed the lowest IC50 of DPPH scavenging activity (1.01 µg/ml) which may be due to the presence of high content of Vitamin C. Among all extracts of Ripe and non-ripe, the methanol extract of non-ripe Brazilian Cherry Fruits in Green Color (BC-GC-M) was found to be highest total phenolic content 111.52 mg GAE/100g, and the ethanol extracts of Ripe Brazilian Cherry Fruits in Red Color (BC-RC-E) was found to be lowest total phenolic content, 106.004 mg GAE/100g.The overall results that were obtained in this study will be one of the important key strategies by adding this fruits in the diet chart to prevent and fight against infection recently caused by COVID-19 in worldwide and other infectious diseases by increasing our body immunity in the long term and this fruits also will be useful as a raw materials in the pharmaceutical and food industries to prepare drugs and food products.