Miracle-dz/UniFAR-FTUs huggingface dataset:
Laser-Diode-Tuned Sequential Laser Atom Cooling and Trapping for Nanofabrications

We developed an atom-optical system that utilized a laser diode (LD) for both laser atom cooling and trapping. The LD is easy to maintain and operate, and is therefore suitable for engineering applications. The neutral atom beam of chromium was collimated by Doppler cooling and focused by a standing wave lens, and then directly deposited onto a silicon substrate. A nanograting structure with periodicity identical to the wavelength of the standing wave, 212.78 nm, was successfully achieved. The atom beam generation, collimating, focusing and deposition processes were experimentally and theoretically investigated.
Factors influencing the usage of XBRL tools

This study established and empirically validated a model for predicting factors influencing users' behavioural intentions for using XBRL tools. This study explored the behavioural intention of using XBRL tools from the point of view of users by applying the UTAUT model with the addition of trust and satisfaction. An online survey was conducted by using the modified study model to comply with the research objectives. An online survey of 267 respondents obtained and analysed using structural equation modelling (SEM) and IBM SPSS AMOS. The findings show that trust and satisfaction influenced behavioural intent significantly and positively. In turn, the effort expectancy and performance expectancy had a significant impact on satisfaction. The results showed that in the presence of satisfaction there was no direct effect of effort expectancy and performance expectancy on the behavioural intention to use XBRL tools and the emergence of a direct effect of confidence on the behavioural intention to use XBRL tools. The findings correspond with the previous studies and provide a practical reference for XBRL tool developers and decision-makers involved in developing and using XBRL tools for tagging and analysing financial reporting.
Seismic Bearing Capacity for Strip Footings on Undrained Clay with Voids

ABSTRACT This paper investigates the seismic bearing capacity of strip footings on undrained clay with single continuous square voids. Numerical studies for a wide range of geometric parameters and material properties are performed using adaptive finite element limit analysis (AFELA). Based on the pseudo-static approach, rigorous upper and lower bounds of the seismic bearing capacity for the strip footing are obtained, with relative errors of 4% or better. The calculated results are presented in the form of design tables and charts, and the effects of different governing parameters on the seismic bearing capacity are evaluated, including the size and location of the voids, the dimensionless strength ratio and the horizontal seismic coefficient. In addition, typical failure mechanisms are examined, and comparisons with previous studies are also conducted.
Mobile sources of atmospheric polycyclic aromatic hydrocarbons: a roadway tunnel study

Suspended particulate matter samples were collected by high volume samplers in a heavily traveled roadway tunnel to characterize the mobile source emissions (diesel- and gasoline-fueled vehicles) for polycyclic aromatic hydrocarbons (PAHs). Liquid and gas chromatographic techniques were employed to isolate and quantify individual PAHs in dichloromethane extracts of Teflon and glass-fiber filters. Mobile-source PAH emission estimates were generated from the particle- and vapor-phase samples collected in the tunnel and agree with emission estimates reported previously for roadway tunnels in Japan. Factor analysis of PAH concentrations from 47 filter samples yielded two factors; one of which possibly represented the diesel-fueled vehicles (heavy-duty trucks) and the other, either gasoline-fueled vehicles or a composite of the gasoline and diesel sources.
Pengaruh Kecerdasan Emosi dan Iklim Organisasi Terhadap Kualitas Pelayanan

Penelitian ini bertujuan untuk mengetahui pengaruh kecerdasan emosional dan iklim organisasi terhadap kualitas pelayanan perawat di RSUD Abdul Wahab Sjahranie Samarinda. Penelitian ini menggunakan pendekatan kuantitatif. Sebanyak 80 perawat dipilih dengan teknik simple random sampling sebagai subjek dalam penelitian ini. Metode pengumpulan data yang digunakan adalah skala kualitas layanan, kecerdasan emosional dan iklim organisasi. Uji analisis regresi sebagai teknik yang digunakan untuk menganalisis data dalam penelitian ini. Hasil penelitian ini menunjukkan bahwa: (1) terdapat pengaruh positif dan signifikan kecerdasan emosional terhadap kualitas pelayanan perawat dengan koefisien beta (β) = 0,251, dan nilai t hitung> t tabel (2,448> 1,990), dan nilai p = 0,004 (p <0,05); (2) terdapat pengaruh positif dan signifikan iklim organisasi terhadap kualitas pelayanan perawat dengan koefisien beta (β) = 0,140, dan nilai t hitung> t tabel (2,239> 1,990) dan nilai p = 0,000 (p < 0,05); (3) terdapat pengaruh kecerdasan emosional dan iklim organisasi terhadap pelayanan perawat dengan F hitung> F tabel (5,836> 3,11), dan p = 0,000 (p <0,05). Sumbangan variabel (R2) kecerdasan emosional dan iklim organisasi terhadap kualitas pelayanan perawat sebesar 22,1%.
On the Design and Analysis of Compact Super-Wideband Quad Element Chiral MIMO Array for High Data Rate Applications

This paper presents a compact, bouquet-inspired, four-element MIMO array for super wideband (SWB) applications. The proposed unit element monopole antenna has compact geometry, and it is deployed by the fusion of an elliptical and circular-shaped radiator. The convoluted geometry and semi-elliptical ground plane, along with the narrow rectangular slit defected ground structure, provides a wide impedance bandwidth. The designed unit cell has the dimensions of 32 mm × 20 mm × 0.8 mm, operates from 2.9 to 30 GHz (S11 ≤ −10 dB) and provides a bandwidth dimension ratio (BDR) of 2894. The proposed low-profile diversity array without any decoupling structures consists of four orthogonally placed, uncorrelated antennas with an inter element spacing of 0.05 λ0, occupies an area of 57 mm × 57 mm and provides dual polarization. The performance metrics of the diversity array were validated for frequencies over ultra-wideband, using mutual coupling characteristics, envelope correlation coefficient (ECC) by far-field radiation, diversity gain (DG), total active reflection coefficient (TARC), channel capacity loss (CCL) and cumulative distribution function (CDF) analysis. The measured mutual coupling over the operating band was less than −18 dB, the ECC was less than 0.004 and the TARC was less than −15 dB, and a better CCL of ˂0.28 bits/s/Hz was achieved by the fabricated antenna.
Can Formalisation Ensure Ethical Behaviour Among Teachers? The Mediating Role of Moral Efficacy

Formalisation emerges as an important aspect of organisational structure, especially in the wake of disruption of organisational routines. Also, there is a growing recognition that, in recent decades, higher educational institutions started adapting several business-like managerial practices into their system. In this context, the present study aims to determine the likely effect of organisational formalisation on ethical and unethical behaviour among teachers/faculty members. In addition, the study assesses the mediating mechanism of moral efficacy in the aforementioned relationships. A survey-based method was utilised to collect data from the 689 faculty members affiliated with different higher educational institutions in southern India. Structural equation modelling results revealed that formalisation has a significant positive relation with faculty member’s ethical behaviour. However, the study did not provide evidence for the predicted negative relationship between formalisation and unethical behaviour. Further, the results suggested that moral efficacy plays a significant mediating role in both these relations. Results reinforce the underlying theoretical mechanism of social cognitive theory that human function is a reciprocal determinism between person, his/her environment, and behaviour. Implications and limitations of the study are discussed.
PENGARUH UKURAN PERUSAHAAN, ROE, DER DAN EPS TERHADAP HARGA SAHAM PADA PERUSAHAAN MAKANAN DAN MINUMAN YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE 2015 - 2019

Abstract: This study aims to determine and analyze company size, Return on Equity (ROE) Debt to Equity Ratio (DER) Earning Per Share (EPS) has a simultaneous, partial and dominant effect on stock prices in food and beverage industry companies on the Indonesia Stock Exchange. The research conducted is associative quantitative research. This research was conducted to determine the effect partially and simultaneously. The type of data obtained is quantitative data. Quantitative data are prices in the form of numbers. Here the data that the authors take is data about company size, Return on Equity (ROE), Debt to Equity Ratio (DER), Earning Per Share (EPS) and the stock price (closing price). The results of this study indicate that Company Size, Return On Equity (ROE) Debt To Equity Ratio (DER) Earning Per Share (EPS) has a simultaneous effect on stock prices in food and beverage industry companies on the Indonesia Stock Exchange. Company Size and Return On Equity (ROE) Partially Affect Stock Prices in Food and Beverage Industry Companies in the Indonesia Stock Exchange. Debt To Equity Ratio (DER) and Earning Per Share (EPS) have no partial effect on stock prices in food and beverage industry companies on the Indonesia Stock Exchange Keywords: Company Size, ROE, DER, EPS, Stock Price Abstrak: Penelitian ini bertujuan Untuk mengetahui dan menganalisis ukuran perusahaan, Return on equity (ROE) Debt to Equity Ratio (DER) Earning Per Share (EPS) berpengaruh secara simultan, parsial dan dominan terhadap harga saham pada perusahaan industri makanan dan minuman di Bursa Efek Indonesia. Penelitian yang dilakukan adalah penelitian kuantitatif asosiatif. Penelitian ini dilakukan untuk mengetahui pengaruh secara parsial dan simultan. Jenis data yang diperoleh adalah jenis data kuantitatif. Data kuantitatif adalah harga yang berbentuk angka. Disini data yang penulis ambil adalah data tentang ukuran perusahaan, Return on equity (ROE) Debt to Equity Ratio (DER) Earning Per Share (EPS) dan harga saham (closing price). Hasil penelitian pada penelitian ini menunjukan Ukuran Perusahaan, Return On Equity (ROE) Debt To Equity Ratio (DER) Earning Per Share (EPS) Berpengaruh Secara Simultan Terhadap Harga Saham Pada Perusahaan Industri Makanan Dan Minuman Di Bursa Efek Indonesia. Ukuran Perusahaan dan Return On Equity (ROE) Berpengaruh Secara Parsial Terhadap Harga Saham Pada Perusahaan Industri Makanan Dan Minuman Di Bursa Efek Indonesia. Debt To Equity Ratio (DER) dan Earning Per Share (EPS) tidak Berpengaruh Secara Parsial Terhadap Harga Saham Pada Perusahaan Industri Makanan Dan Minuman Di Bursa Efek Indonesia Kata Kunci : Ukuran Perusahaan, ROE, DER, EPS, Harga Saham
Mass Transfer and Current‐Potential Relation in Pulse Electrolysis

On propose une theorie generalisee pour l'electrolyse pulsee avec des impulsions de courant rectangulaires, des inversions d'impulsions periodiques et des impulsions rectangulaires doubles avec relaxations. On montre que des vitesses de transfert de matiere, instantanees, tres rapide, correspondant a des densites de courant de 100-1000 A/cm 2 peuvent etre atteintes par des impulsions courtes de courant aux frequences d'implusions elevees. On donne quelques resultats numeriques sur les fluctuations de concentration et les reponses de potentiel pour le depot/dissolution du cuivre sur une electrode a disque tournant dans des solutions acides de sulfate de cuivre
Does an Increase in the Minimum Wage Decrease Employment? A Meta-Analysis of Canadian Studies

Abstract:Nous procédons à une méta-analyse de la documentation canadienne sur le salaire minimum à l'aide de méthodes de méta-régression dans le but de déterminer si cette documentation présente un biais de publication et quelle est l'ampleur de l'effet empirique une fois apportés les ajustements nécessaires pour tenir compte de ce biais. Dans le cas des adolescents, le groupe démographique qui réunit le plus grand nombre de travailleurs rémunérés au salaire minimum et, par conséquent, au sujet duquel les constatations qui se dégagent intéressent le plus les décideurs politiques et les législateurs, aucune preuve de biais de publication n'est relevée et l'élasticité du salaire minimum observée avoisine – 0,27. Nous traitons également des conséquences de ces constats pour les chercheurs et les décideurs politiques.Abstract:I conduct a meta-analysis of the Canadian minimum wage literature, using meta-regression methods to determine whether this literature has a publication bias and the size of the empirical effect after adjusting for this bias. For teenagers, the demographic group with the largest share of minimum wage workers and thus providing the findings of most interest to policy-makers and legislators, I find no evidence of a publication bias and a minimum wage elasticity of about –0.27. I also discuss the implications of my findings for researchers and policy-makers.
Structures of 2,2,2,2,2‐pentaammine‐1‐aqua‐1,2‐(μ‐imidazolato‐N,N')‐1‐(iminodiacetato‐O,O',N)cobalt(III)copper(II) perchlorate trihydrate and 2,2,2,2,2,3,3,3,3,3‐decaammine‐1,2;1,3‐di‐(μ‐imidazolato‐N,N')‐1‐(iminodiacetato‐O,O',N)dicobalt(III)copper(II) perchlorate tetrahydrate

(I) [(C 4 H 5 NO 4 )(H 2 O) Cu(μ-C 3 H 3 N 2 )Co(NH 3 ) 5 ](ClO 4 ) 2 •3H 2 O cristallise dans P2 1/c avec a=13,024, b=15,400, c=13,198A, β=111,28 o , Z=4; affinement jusqu'a R=0,062 (II) [(NH 3 ) 5 Co(μ-C 3 H 3 N 2 ) Cu(C 4 H 5 NO 4 )(μ-C 3 H 3 N 2 )Co(NH 3 ) 5 ] (ClO 4 ) 4 4H 2 O cristallise dans P2 1/n avec a=15,617, b=8,876, c=28,801 A, β=105,42 o , Z=4; affinement jusqu'a R=0,073. Dans le compose (8), la coodination autour de Cu est pyramidale carree le cuivre etant lie a un atome N et deux atomes O de l'iminodiacetate ainsi qu'a un atome N de l'imidazole et un atome O de l'eau suivant l'axe perpendiculaire. Dans le compose (II), la coordination du cuivre est identique
Fe3O4 Nanoparticles as an Efficient and Magnetically Recoverable Catalyst for Friedel–Crafts Acylation Reaction in Solvent-Free Conditions

Abstract Application of Fe3O4 nanoparticles (NPs) as a robust, very efficient, and magnetically recoverable catalyst was investigated in Friedel–Crafts acylation (FCA) of ferrocene and aromatic compounds. This reaction was performed with acid chlorides in solvent-free conditions at room temperature. The catalyst was easily separated by an external magnetic field from the reaction mixture. The separated catalyst was recycled for several consecutive runs without appreciable loss of its catalytic activity. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications® to view the free supplemental file. GRAPHICAL ABSTRACT
Determination of Rosuvastatin and its Metabolite N-Desmethyl Rosuvastatin in Human Plasma by Liquid Chromatography–High Resolution Mass Spectrometry: Method Development, Validation, and Application to Pharmacokinetic Study

A novel liquid chromatography–tandem mass spectrometry (LC–MS/MS) method was developed for the determination of rosuvastatin (rosuva) and its metabolite N-desmethyl rosuvastatin (NDM-rosuva) in human plasma using atorvastatin as internal standard. The method was validated according to international guidelines. The analytical column used was HiChrom® C18 (150 × 3.0 mm, 3 µm; Reading, UK) and the mobile phase comprised of 0.1% formic acid in acetonitrile and 0.1% formic acid in water (70:30 v/v), pumped at 300 µL/min. The precipitation of plasma proteins and extraction of analytes were carried out by a simple one-step procedure using acetonitrile. The calibration curves were linear (r2 = 0.999) over the concentration range of 0.2–20 ng/mL for rosuva and 0.1–10 ng/mL for NDM-rosuva. The lower limits of detection and quantification for rosuva were 0.1 and 0.2 ng/mL, whereas for NDM-rosuva, these were 0.03 and 0.1 ng/mL, respectively. The intra- and inter-day precisions expressed as relative standard deviations (RSDs) were less than 2.5%. The average absolute recoveries of both rosuva and NDM-rosuva were greater than 95%. The method was successfully applied for the determination of rosuva and NDM-rosuva pharmacokinetics and drug–drug interaction studies.
Raman scattering study of a phase transition in tantalum pentoxide

Ta2O5 ceramics and crystals were prepared and analyzed using Raman spectroscopy in the temperature range 25–873 K. The low-energy phonon bands (ν < 100 cm−1) of Ta2O5 are assigned to external modes originating from the interaction between different Ta polyhedra and TaOn5 − 2n Ta6O126+ clusters. The temperature and polarization dependence of external modes suggests the existence of clusters in the material. A softening of the low-energy bands was observed with increasing temperature. The spectral evolutions show a soft mode-derived second-order monoclinic to orthorhombic phase transition at about 600 K in Ta2O5. Copyright © 2000 John Wiley & Sons, Ltd.
Measuring the Constructs That Influence Student and Lecturer Acceptance of an E-Library in Accra Technical University, Ghana

Even though many universities across the world have incorporated internet-based educational and academic systems, the success of their implementation requires an extensive understanding of the end user acceptance process. Access to academic resources for teaching and learning using technology (electronic library) has become a popular approach within higher education institutions due to the continuous growth of internet innovations and technologies. This case study research, conducted at Accra Technical University uses the technology acceptance model (TAM) as a theoretical framework. The study investigates the effects of the system characteristics such as appropriate user interface (UI), software design, and relevance towards the perceived ease of use and perceived usefulness on intention to use the proposed e-library system. Two hundred (200) students and sixteen (16) lecturers participated in this quantitative study. Results show that improvement of the existing e-library system in ATU will enable students to utilize digital learning resources for effective teaching and learning, especially during the current global COVID-19 pandemic.
The social side of IPOs: Twitter sentiment and investors attention in the IPO primary market

Despite in recent years the impact of market sentiment on the performance of listing firms has gained increased attention from academics and professionals, a research question that remains uncovered deals with how the retail investor sentiment and attention might impact the IPO pricing in the primary market. This analysis proposes a stochastic frontier model approach on a sample of 412 US firms listed between 2010 and 2016. The main research questions aim at revealing the effects that the number and the sentiment of the Tweets in the 3 months prior to each IPO produce in terms of the distance between the maximum achievable price and the actual offer price of the stocks. Results show that the more favorable the sentiment, the closer the offer price is set to the maximum achievable to the benefit of the issuer; on the contrary, negative sentiments seem to play no effect on the pricing, supporting the idea that investors are net buyers of attention-grabbing news. The number of Tweets shows no effect as well. Few and good is then the desirable attention and sentiment that issuers should wish for their listing firms. Key words: Initial public offering, sentiment, investors’ attention, underpricing, social media.
Efficacy Assessment of Newly-designed Filtering Facemasks during the SARS-CoV-2 Pandemic

ABSTRACT The SARS-CoV-2 pandemic resulted in shortages of production and test capacity of FFP2-respirators. Such facemasks are required to be worn by healthcare professionals when performing aerosol-generating procedures on COVID-19 patients. In response to the high demand and short supply, we designed three models of facemasks that are suitable for local production. As these facemasks should meet the requirements of an FFP2-certified facemask, the newly-designed facemasks were tested on the filtration efficiency of the filter material, inward leakage, and breathing resistance with custom-made experimental setups. In these tests, the facemasks were benchmarked against a commercial FFP2 facemask. The filtration efficiency of the facemask’s filter material was also tested with coronavirus-loaded aerosols under physiologically relevant conditions. This multidisciplinary effort resulted in the design and production of facemasks that meet the FFP2 requirements, and which can be produced at local production facilities.
Measurements of critical point energies in the conduction band structure of Si1−xGex

The energies of the Δ1 and L1 conduction band minima and the L3 saddle point have been measured in Si1−xGex (x=0.0–0.95) alloys using spatially resolved electron energy‐loss spectroscopy. Measurements were carried out in a scanning transmission electron microscope at a spatial resolution of better than 2 nm on specimens grown in a SiGe molecular‐beam epitaxy system on Si(100) substrates. As observed in photoluminescence measurements, the Δ1 and L1 bands are seen to cross at a Ge content of approximately 85%. L3 and Δ1 maintained a nearly constant energy separation independent of alloy composition. In contrast, L1 and Δ1 approach each other rapidly with increasing Ge content. Based on these results, this technique can be used to identify the composition of thin Si1−xGex alloys with a lateral resolution of better than 2 nm.
MODERATING EFFECT OF SERVICE QUALITY ON PUBLIC TRANSPORT TRAVEL BEHAVIOUR AND ANTECEDENTS

Public transport infrastructure has been massively developed to encourage public transport usage in Kuala Lumpur. However, a low percentage of public transport ridership dampens the objectives to reduce traffic congestion and air population. This paper attempts to investigate the effect of travel intention and the moderating effect of general service quality of public transport on travel behaviour among commuters in Kuala Lumpur. A survey was carried out at LRT stations, and a total of 904 were usable. Most of the respondents are young adults between 20-29 years old, and the majority earned less than RM3,000 a month. Most of them possess a vehicle and driving license. Findings showed that travel intention has a significant effect on travel behaviour. Interestingly, service quality, in general, weakly moderates the relationship between travel intention and travel behaviour in a reverse direction. The findings would help relevant authorities to set strategies to encourage more private riders further to switch to public transport.
Asphaltene Nanoaggregates Measured in a Live Crude Oil by Centrifugation

Asphaltene nanoaggregates have recently been observed in live crude oil by observation of gravitationally induced asphaltene gradients in four different reservoir sands with oil columns up to 1000 m vertical. When the liquid phase is invariant, these gradients can be fit using Archimedes buoyancy in the Boltzmann distribution; the only adjustable parameter in data fitting is the size of the asphaltene nanoaggregate; ∼2 nm is obtained in four reservoir sands and is similar to laboratory results for asphaltene nanoaggregates in toluene. Here, a live crude oil (with dissolved gases) has been spun at modest g forces for long times designed to create a large, equilibrium asphaltene gradient for the presumed 2 nm aggregates. Elevated temperatures (∼91 °C) were employed during centrifugation to mimic reservoir conditions for asphaltene aggregation and prevention of a possible wax phase. Elevated pressures were employed on the hot, live crude oil to maintain dissolved gas concentrations. A total of 13 alliquots o.