Miracle-dz/UniFAR-FTUs huggingface dataset:
ON CONFORMALLY BERWALD M-TH ROOT (α, β)-METRICS

In this paper, we study the class of $m$-th root (α, β)-metrics which is a significant class mixed of two classes of metrics: $m$-th root metrics and (α, β)-metrics. First, we find the necessary and sufficient condition under which the quartic (α, β)-metrics are conformally Berwald. Then, we find the necessary and sufficient condition under which the cubic (α, β)-metrics are conformally Berwald. Finally, we construct some conformal Finslerian invariants.
Analisis Leverage Dalam Mengukur Risiko Studi Kasus Pada PT. Pabrik Kertas Tjiwi Kimia Tbk

The purpose of this study is to look at the risk of PT. Tjiwi Kimia Tbk Paper Plant in terms of business risks, financial risks, and total risk caused by looking at specific problems within the company to obtain various measures that are useful for measuring risk levels. Form of research that uses observation by using descriptive analysis method to describe course of an ongoing research or looking for problems that occur in the company where the author wakes up research. Result of research: 1). Operating Leverage (DOL) for the last six years has not been good, because the resulting DOL tends to increase this meaning the company has not been able to reduce its business risk. 2) The resulting Financial Leverage (DFL) contains a downward trend which can be seen from the decrease in EPS generated so that the company has not been able to reduce its financial risk. 3) Total Leverage (DTL) generated can still change, with DTL result every year tends to increase and decrease (inconsistent) seen from variation of EPS produced every time following sales up and down. PT. Tjiwi Kimia Tbk Paper Plant can reduce the total risk if it can drop DOL and increase DFL.
Effect of Activated Carbon and Catalyst on Physical and Chemical Properties of Pyrolytic Oil from Microwave Assisted Pyrolysis of Automotive Paint Sludge (APS)

Automotive paint sludge (APS) contains valuable material which can be recovered by microwave-assisted pyrolysis as studied by previous researchers. In this study, combined application of microwave absorber and catalyst are studied in order to study the effect of both components in microwave-assisted pyrolysis of APS. Activated carbon and ZSM-5 acted as microwave absorber and catalyst, respectively were used to investigate their effect on pyrolytic oil produced from APS. By using One-Factor-At-Time (OFAT) analysis, results showed that at 1000W power level, 30 minutes radiation time, 6% activated carbon loading and 1.5% catalyst loading, the process was capable to produce highest oil yield of 7.75% pyrolytic oil as compared to other parameters. On the other hand, physical and chemical properties of pyrolytic oil produced via this process was also improved.
Coronavirus Disease 2019 (COVID-19): Patogenesis, Manifestasi Klinis dan Pilihan Terapi

Coronavirus Disease 2019 (COVID-19) ditemukan pada akhir tahun 2019 tepatnya bulan Desember di Kota Wuhan, Provinsi Huebei, China dan kemudian menyebar ke hampir seluruh dunia. Covid-19 disebabkan oleh betacoronavirus jenis baru yang cenderung mirip SARS-CoV dan MERS-CoV. Tujuan penulisan ini untuk memberikan telaah mengenai patofisiologi, manifestasi klinis, dan perkembangan penelitian tatalaksana Covid-19. Jenis review yang digunakan dalam artikel ini berbentuk literature review terhadap 41 artikel Covid-19 dengan menggunakan database PubMed dan Google Scholar . Covid-19 termasuk dalam genus betacoronavirus, hasil anasilis menunjukkan adanya kemiripan dengan SARS. Gejala umum di awal penyakit adalah demam, kelelahan atau myalgia, batuk kering. Serta beberapa organ yang terlibat seperti pernapasan, gastrointestinal, dan neurologis. Sampai saat ini, WHO dan beberapa Negara sedang melaksanakan uji klinis untuk menemukan obat yang tepat untuk Covid-19, studi ini bernama SOLIDARITY . Terdapat 4 kelompok dalam studi ini, yaitu kelompok LPV/r dan Interferon-beta , Remdesivir, Klorokuin dan Hidroksiklorokuin. Faktor virus dengan respon imun menentukan keparahan dari infeksi Covid-19. Gejala umum di awal penyakit adalah demam (83-98%), kelelahan atau myalgia, batuk kering (76-82%) dan sesak napas (31-55%). Dari telaah terhadap studi yang ada didapatkan bahwa sampai saat ini Remdesivir adalah obat yang paling berpotensi efektif terhadap Covid-19, walaupun begitu, masih dibutuhkan penelitian lebih lanjut dengan melakukan uji klinis yang lebih luas.
Investigation and evaluation of water literacy of urban residents in China based on data correction method

This study proposes an evaluation index system of water literacy levels. Thirty-one provincial capitals in mainland China were selected for the survey. The preliminary evaluation results were revised to obtain the comprehensive evaluation value of water literacy. The results of the questionnaire show that the water literacy score is relatively high, but the water behavior score is relatively low; the modified evaluation results are closer to the actual water literacy level of urban residents; and the comprehensive evaluation value of water literacy has a certain correlation with the distribution of water resources in China. The research results can provide theoretical support for China’s future work to improve citizens’ water literacy, and the water sector can formulate policies that are more in line with China’s water resource status based on the level of water literacy, differences in water behavior, and water resource distribution.
Online Teaching of a Lab Course Amid a Pandemic „ a Challenge and an Opportunity

This paper reports an innovative, hybrid teaching model for a junior level lab course. This model leverages in-person lab operation by adding a student-led online learning mode. Both course outcomes and student outcomes were evaluated. Student feedback was collected, and its analysis showed both positive and negative impacts in this hybrid model. This work is not only valuable for developing online lab courses but also in terms of long-term development of distance learning.
Crystallization of Poly(butylene succinate) on Rapid Cooling and Heating: Toward Enhanced Nucleation by Graphene Nanosheets

Fast scanning calorimetry (FSC) was employed to analyze the crystallization kinetics of poly(butylene succinate) (PBS) graphene nanocomposites. The emphasis of the present study is the heterogeneous nucleation of the PBS crystals in the presence of graphene nanosheets. Graphene oxide nanosheets were first synthesized and then reduced and homogeneously dispersed into a PBS matrix. The internal structure of neat PBS and of the nanocomposite was investigated by transmission electron microscopy and wide angle X-ray diffraction analysis. The crystallization from the melt and from the glass studied at high cooling and heating rates via FSC appeared to be significantly promoted in the presence of graphene. The presence of secondary crystallization on heating and the higher crystal perfection observed were attributed to the formation of a graphene network inside the PBS matrix. The activation energies of melt and glass crystallization were combined in order to obtain one set of Hoffman–Lauritzen parameters for ea.
Assessment of Guinea Grass Panicum maximum under Silvopastoral Systems in Combination with Two Management Systems in Orellana Province, Ecuador

Climate change has increased the interannual and seasonal variation in the average temperature and precipitation rate, which determine forage availability globally. Similar patterns of change have occurred in tropical regions, and Ecuador is no exception. This region includes other influencing factors, such as the conversion of tropical forests to extensive pastures. Therefore, this study was carried out to evaluate guinea grass (Panicum maximum) cultivated under silvopastoral systems with different management strategies in both of the seasons of the study region in Ecuador (rainy season and dry season). A randomized complete block design was used for the experiment, with three repetitions and three treatments. Agronomic measures, forage production, chemical composition, animal responses, and soil properties were evaluated. Data were analyzed with the Mixed model of SAS. Differences in all evaluated parameters were observed between treatments, and silvopastoral systems (SPSs) produced better results than conventional grass monoculture. Furthermore, there was a strong seasonal effect on forage production, chemical composition, and soil properties. Therefore, management of Panicum maximum with well-planned grazing can enhance animal responses and help to retain natural resources, lowering the pressure on forests.
Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge

Solid fuelization technology can increase the heating value of sewage sludge such that it can be utilised as a fossil fuel substitutes. Reducing landfilling of bottom and fly ash resulting from heavy metals contained in sewage sludge is challenging. Hence, combustion melting technology (CMT), which can discharge bottom ash in the form of slag, has been proposed herein as an alternative to the conventional incineration technology. However, further research is required to improve the flowability of slag. Applicability of CMT for the stable treatment of heavy metals in the ash generated during the energisation of sewage sludge solid fuel has been reviewed. The change in the degree of fluidity was identified via a laboratory-scale fluidity measurement experiment following changes in melting temperature, mixing ratio of sewage sludge and sawdust, and basicity. The pouring index (PI) of sewage sludge solid fuel (pellet) was maintained at a level of about 60% at a basicity index of 0.8. Based on the results, the slagging rates and volume reduction rates, exhaust gas analysis, and heavy metal elution characteristics under oxygen enrichment were derived from a 2 ton/day combustion melting pilot plant experiment; thereafter, the feasibility of combustion melting of sewage sludge solid fuel was determined.
Dark Supernova Remnants Revealed by CO-Line Bubbles in the W43 Molecular Complex along the 4-kpc Galactic Arm

Fine structure of the density distribution in giant molecular clouds (GMCs) around W43 (G31+00+90 km s−1at ∼5.5 kpc) was analyzed using the FUGIN* CO-line survey at high-angular (20”∼0.5 pc) and velocity (1.3 km s−1) resolutions (*Four-receiver-system Unbiased Galactic Imaging survey with the Nobeyama 45-m telescope). The GMCs show highly turbulent structures, and the eddies are found to exhibit spherical bubble morphology appearing in narrow ranges of velocity channels. The bubbles are dark in radio continuum emission, unlike usual supernova remnants (SNR) or HII regions, and in infrared dust emission, unlike molecular bubbles around young stellar objects. The CO bubbles are interpreted as due to fully evolved buried SNRs in molecular clouds after rapid exhaustion of the released energy in dense molecular clouds. Then, the CO bubbles may be a direct evidence for exciting and maintaining the turbulence in GMCs by SN origin. Search for CO bubbles as “dark SNRs” (dSNR) will have implication to estimate the supernova rate more accurately, and hence the star formation activity in the Milky Way.
The change of metal pollution in the water and sediment of the Bartın River in rainy and dry seasons

In this study, it was aimed to determine the heavy metal pollution and the factors causing this pollution in the water and sediment of the Bartın River during rainy and dry periods. Concentrations of Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn, As and some other metals in water and sediment samples collected from 4 different points during rainy and dry periods were investigated. It has been determined that both natural sources (soil erosion) and anthropogenic sources (runoff in urban and agricultural areas) affect metal concentrations in water and sediment during the rainy period. Heavy metal accumulation was less at the point with the least water depth (≈ 2 m). Higher concentrations were determined at the point where soil transport was highest during the rainy period. Since EF values of As, Pb, Zn and Li were greater than two in both periods, it was determined that they were affected by anthropogenic sources (wastewater discharges, agricultural and urban activities). EF values less than one showed that Co, Cr, Ba, Ni, Mn were related to lithogenic actions and riverbank runoff. Non-carcinogenic effects caused by metals did not pose a risk to adults and children.
Making Concentrated Pterostilbene Highly Bioavailable in Pressure Processed Phospholipid Nanoemulsion

Pterostilbene, a dimethylether analog of resveratrol, has been found to have potent biological activity. However, the bioavailability of pterostilbene in the biological system is limited due to its poor solubility in an aqueous environment. A nanoemulsion system was designed for this purpose. Lecithin-based nanoemulsion was formed after 3 cycles through a high-pressure homogenizer at 500 psi. The rheological properties and particle size were measured using dynamic light scattering and a viscometer. The storage stabilities of the prepared formulation were determined based on its ability to maintain its particle size and loading concentration. According to the experimental results, the lecithin-based nanoemulsion system contained approximately 9.5% of pterostilbene. Over the 28-day stability test, the particle size, zeta potential, and encapsulation of pterostilbene in the nanoemulsion did not change significantly, indicating good storage stability. The positive effect of the prepared nanoemulsion system on bioavailability was studied and confirmed using in vitro lipolysis and a caco-2 monolayer model.
Application of the isotope pairing technique in sediments where anammox, denitrification, and dissimilatory nitrate reduction to ammonium coexist

The 15N isotope pairing technique is widely used to quantify anammox, denitrification, and dissimilatory nitrate reduction to ammonium (DNRA) in sediments. However, the effects of DNRA on anammox and denitrification in slurry incubations and on genuine N2 production in intact core incubations have not been fully explored. We developed a mathematical model describing these effects of DNRA, and tested this model in field and computational studies. Our model calculations revealed that for slurry incubations the presence of DNRA tends to under ‐and overestimate the actual anammox and denitrification rates, respectively, when calculated according to Thamdrup and Dalsgaard (2002). We found this underestimate of anammox to be proportional to the 15 NH4+ mole fraction (FA), and the overestimate of denitrification to be related to both FA and the relative contribution of anammox to the total N2 production (ra). We propose three alternative procedures to better quantify anammox and denitrification rates in slurry incubations and two procedures for intact core incubations. Our model calculations also revealed that for intact core incubations, the presence of DNRA leads to an overestimate of the genuine N2 production rate when calculated according to Risgaard‐Petersen et al. (2003). This overestimate depends on the ra and the mole fractions of 15 NH4+ and 15 NO3− in intact core incubations. The results of our field experiments and numerical modeling indicated that the overestimate of the genuine N2 production was less than 1% at two sites in the East China Sea.
Consequences of Interim Reporting: A Literature Review and Future Research Directions

This study provides the first comprehensive literature review on interim reporting based on 112 papers published between 1961 and 2020. The review focuses on both the firm-specific consequences (capital market-based and real effects) and externalities of interim reporting. We analyze three primary interim reporting characteristics: (1) frequency, (2) contents, and (3) assurance. The review allows us to summarize the existing literature, reconcile different findings, identify trends in the literature, and present avenues for future research. We observe that investors perceive interim reports to be useful. However, no clear evidence exists for strong capital market-based benefits of higher reporting frequency, such as increases in liquidity. Higher reporting frequency seems to imply stricter monitoring, especially in the absence of other effective monitoring mechanisms. Nonetheless, it can also induce myopic decision-making. More comprehensive reports convey more information at the costs of increases in reporting lags and processing time. Surprisingly, the current literature does not find that interim assurance leads to higher interim report quality.
Do Cross-Listed Firms Have a Better Governance Structure and Lower Agency Costs? Evidence from Chinese Firms

This study examines whether an influence from a difference in corporate governance structure exists on firms’ agency costs between Chinese companies cross-listed on the Hong Kong Stock Exchange (HKSE) and those that are domestically listed ones. We determine that, overall, companies with an HKSE cross-listing had better corporate governance than those without. The corporate governance advantage of the HKSE cross-listed firms holds if we control for firm fixed effects and resolve the potential endogeneity problem between corporate governance and agency costs by using two-stage least square (2SLS) regression analysis with instrumental variables. Specifically, the HKSE cross-listed firms had better corporate governance in terms of board size and institutional ownership. By contrast, domestically listed firms experienced the adverse effects of institutional owner’s roles and higher board pay. The advantages of HKSE cross-listed firms may stem from the benefits of having a larger board size and the effective monitoring of the management by the institutional stockholders. Implications are drawn for the debate on cross-listing and the future challenges of Chinese firms, and a more robust monitoring is necessary for sustainable finance of their stock markets.
Does online shopping make people feel better? The therapeutic effect of online shopping on Korean female consumers’ mood, self-esteem, and self-efficacy : Based on the context of fashion product shopping

ABSTRACT This study investigates the influence of online shopping on Korean female consumers’ negative mood, positive mood, self-esteem, and self-efficacy. Study 1 compared two groups of respondents. The experimental group engaged in online shopping (so-called, “retail therapy”) and the control group rested. The results indicated that online shopping significantly improved subjects’ negative and positive moods and self-efficacy. The results revealed that online shopping was significant and stronger than resting in mitigating a negative mood, but only online shopping improved self-efficacy. Study 2 included an online browsing group and demonstrated that online browsing had a significant effect on subjects’ negative moods. Comparing the three groups revealed that the effect of online shopping on improving both negative and positive moods had the most significant and strongest effect. Furthermore, only online shopping improved self-efficacy. The results of this study provides academic and managerial insights about online retail therapy.
Wearable High‐Performance Supercapacitors Based on Silver‐Sputtered Textiles with FeCo2S4–NiCo2S4 Composite Nanotube‐Built Multitripod Architectures as Advanced Flexible Electrodes

To achieve high‐performance wearable supercapacitors (SCs), a new class of flexible electrodes with favorable architectures allowing large porosity, high conductivity, and good mechanical stability is strongly needed. Here, this study reports the rational design and fabrication of a novel flexible electrode with nanotube‐built multitripod architectures of ternary metal sulfides' composites (FeCo2S4–NiCo2S4) on a silver‐sputtered textile cloth. Silver sputtering is applicable to almost all kinds of textiles, and S2− concentration is optimized during sulfidation process to achieve such architectures and also a complete sulfidation assuring high conductivity. New insights into concentration‐dependent sulfidation mechanism are proposed. The additive‐free FeCo2S4–NiCo2S4 electrode shows a high specific capacitance of 1519 F g−1 at 5 mA cm−2 and superior rate capability (85.1% capacitance retention at 40 mA cm−2). All‐solid‐state SCs employing these advanced electrodes deliver high energy density of 46 W h kg−1 at 1070 W kg−1 as well as achieve remarkable cycling stability retaining 92% of initial capacitance after 3000 cycles at 10 mA cm−2, and outstanding reliability with no capacitance degradation under large twisting. These are attributed to the components' synergy assuring rich redox reactions, high conductivity as well as highly porous but robust architectures. An almost linear increase in capacitance with devices' area indicates possibility to meet various energy output requirements. This work provides a general, low‐cost route to wearable power sources.
What creates the public’s impression of social work and how can we improve it?

This paper presents results from a study in Aotearoa New Zealand 1 which explored the ideas of social work practitioners on public perceptions of social work and how to improve them. This qualitative research was part of a Master’s project for two of the authors and followed on from two previous quantitative studies on this topic in Aotearoa. In-depth, semi-structured interviews were conducted with 15 social work practitioners. Thematic analysis was used to create themes concerning what the perceived public perception was, what contributed to it, and how to improve it. The findings have implications for being better able to understand factors that contribute to the public perception of social work so that it may be improved, for increasing the public’s understanding of social work, and for recruitment of students into the profession.
Capturing high-resolution water demand data in commercial buildings

Water demand measurements have historically been conducted manually, from meter readings less than once per month. Leading water service providers have begun to deploy smart meters to collect high-resolution data. A low-cost flush counter was developed and connected to a real-time monitoring platform for 119 ultra-low flush toilets in 7 buildings on a university campus to explore how building users influence water demand. Toilet use followed a typical weekly pattern in which weekday use was 92%± 4 higher than weekend use. Toilet demand was higher during term time and showed a strong, positive relationship with the number of building occupants. Mixed-use buildings tended to have greater variation in toilet use between term time and holidays than office-use buildings. The findings suggest that the flush sensor methodology is a reliable method for further consideration. Supplementary data from the study’s datasets will enable practitioners to use captured data for (i) forecast models to inform water resource plans; (ii) alarm systems to automate maintenance scheduling; (iii) dynamic cleaning schedules; (iv) monitoring of building usage rates; (v) design of smart rainwater harvesting to meet demand from real-time data; and (vi) exploring dynamic water pricing models, to incentivise optimal on-site water storage strategies.