Miracle-dz/UniFAR-FTUs huggingface dataset:
Quasars' physical properties study based on the medium‐band photometric survey

Funding Information Russian Science Foundation, 21-12-00210. The study is about the quasars cosmological evolution. We used the mediumband photometric survey at the 1-m Schmidt telescope of the Byurakan Astrophysical Observatory. The HS47-22 field with an area of 2.38 square degrees has been selected. We have classified objects and composed a sample of quasars using broadband photometric data and morphological classification from the DECaLS survey (Dey et al., 2019), infrared photometry from the WISE survey (Meisner, Lang, & Schlegel, 2018), spectroscopy from the SDSS survey (Pâris et al., 2018), ROSAT X-ray data (Molthagen, Wendker, & Briel, 1997), FIRST radio data (Becker, White, & Helfand, 1995) and stellar parallax data from the GAIA survey (Gaia Collaboration et al., 2018). We have compiled a sample of 682 quasars, determined their photometric redshifts from the medium-band photometric data, and calculated the absolute stellar magnitudes. The space density of quasars was calculated for different luminosity ranges at different redshifts using the -CDM model with Ωm = 0.3 and Ω = 0.7 (Hogg, 1999). In this paper, we present the comparison of our results with other works.
When Does Abusive Supervision Foster Ineffectual and Defensive Silence? Employee Self-Efficacy and Fear as Contingencies

This study investigates the relationships between abusive supervision and two forms of silence, ineffectual and defensive; the moderating role of self-efficacy in the association between abusive supervision and ineffectual silence and the contingency role of fear in the relationship between abusive supervision and defensive silence. We collected data from 685 employees in manufacturing companies. Of these, 271 were incomplete questionnaires and were excluded from the study; the remaining 414 responses were assessed in the analyses. The results indicate that abusive supervision fosters ineffectual and defensive silence. Moreover, the results suggest that even if supervisors are abusive, individuals with a higher level of self-efficacy tend to have a lower level of ineffectual silence. Furthermore, fear strengthens the link between abusive supervision and defensive silence. According to our knowledge, this work is the first to investigate the relationship between abusive supervision and ineffectual silence, the contingency role of self-efficacy in the link between abusive supervision and ineffectual silence and the moderating role of fear in the relationship between abusive supervision and defensive silence.
Whole Body Stress and Immune Cell Responses to Exercise, Heat and Dehydration in the 2012 Ironman World Championship and Controlled Laboratory Study

Background: Global changes in immune cells and circulating molecules might indicate whole body stress magnitude. Heat shock protein 70kD (HSP70) and plasma HSP70 might protect through different mechanisms. HSP70 transcription factors, Heat Shock Factor 1 (HSF1) and Nuclear Factor of Activated T-cells 5 (NFAT5) respond to heat and dehydration stress, respectively, and might quantify specific stress exposures. Purpose: Characterize circulating and cellular markers indicating cytoprotective responses following acute stress and recovery in humans. Methods: Laboratory: 36 healthy males completed: 1) "Baseline" followed by 16h fluid deprivation, 2) "Pre" and "Post" 2h cycling (~38°C, ~40%RH), 3) partial rehydration measured "Post1h", 4) and complete recovery ("Recov") upon 24h. Peripheral Blood Mononuclear Cells (PBMCs) were measured for HSP70, HSF1, and NFAT5, and plasma HSP70. Field: 22 healthy males at the 2012 Ironman World Championship. Analyses included Complete Blood Count (CBC) with differential, plasma cytokines, and plasma HSP70 at "Base", "Post", "Post1d", and "Post2d". Athletes who lost least (n=8; Euhy) and most (n=8; Dehy) body mass during the race examined dehydration influences in all variables.
The Effect of Iranian Banks' Merger on Financing

The merger of banks is one of the methods for reforming the structure of banks, which has attracted Iranian banking policymakers in recent years. In the process of merging, paying attention to its effects can help to integrate banks. In Iran's banking network, financing of production is one of the main concerns of banking policymakers. Therefore, it is important to study the effect of banks' integration on financing. In this paper, considering the importance of this issue, using the financial statements of banks in the period 2006-2018, and the Panel Data method, the effect of the merger of banks on financing has been investigated. The static method has been used to integrate banks. For this reason, banks have been considered in terms of size and health. The results of the survey indicate that the merger of small banks with large banks and the merger of healthy banks, as compared to other options, have a more positive effect on the supply of facilities.
Vibration control of cylindrical shells using active constrained layer damping

The fundamentals of controlling the structural vibration of cylindrical shells treated with active constrained layer damping (ACLD) treatments are presented. The effectiveness of the ACLD treatments in enhancing the damping characteristics of thin cylindrical shells is demonstrated theoretically and experimentally. A finite element model (FEM) is developed to describe the dynamic interaction between the shells and the ACLD treatments. The FEM is used to predict the natural frequencies and the modal loss factors of shells which are partially treated with patches of the ACLD treatments. The predictions of the FEM are validated experimentally using stainless steel cylinders which are 20.32 cm in diameter, 30.4 cm in length and 0.05 cm in thickness. The cylinders are treated with ACLD patches of different configurations in order to target single or multi-modes of lobar vibrations. The ACLD patches used are made of DYAD 606 visco-elastic layer which is sandwiched between two layers of PVDF piezo-electric films. Vibration attenuations of 85% are obtained with maximum control voltage of 40 volts. Such attenuations are attributed to the effectiveness of the ACLD treatment in increasing the modal damping ratios by about a factor of four over those of conventional passive constrained layer damping (PCLD) treatments. The obtained results suggest the potential of the ACLD treatments in controlling the vibration of cylindrical shells which constitute the major building block of many critical structures such as cabins of aircrafts, hulls of submarines and bodies of rockets and missiles.
Hydrate Prevention on Long Pipelines by Direct Electrical Heating

The direct electrical heating system (DEHS) has been developed and qualified for heating of flowlines and is the only system for heating that has been installed on subsea flowlines in the North Sea. Especially for deep-water fields electrical heating of pipelines is attractive for achieving reliable operation of transport flowlines. Experiences on installed systems have proven easy operation and have also shown to imply high reliability for flow assurance. At present DEH has been applied to pipelines of chromium (13Cr) up to 16 km length. Projects are now coming up in the North Sea where application of DEH for pipelines of carbon steel with lengths up to 50 km are considered. A qualification project was initiated in 2003 to expand the technology base for DEH to include these new installation parameters. An important issue has been to obtain the electrical and magnetic characteristics of carbon steel pipes. The difference in magnetic characteristics of individual carbon pipes results in variation of the heated pipe temperature. Carbon Steel materials are more sensitive than 13Cr for thermal and mechanical stresses on the outer surface in regard to DEH properties. For long pipelines a new cable design is essential to avoid high screen voltages caused by capacitive and inductive currents. In order to solve this problem a semi-conductive outer sheath has been developed for continuous transfer of the capacitive current to surrounding ground potential (seawater/seabed). The results from the study is promising and have given basis of rating of DEH to maintain or raise the thermally insulated steel pipe temperature above the critical value for hydrate (typically 15 - 25 o C) or wax formation (typically 20 - 40 o C). Furthermore the single-phase power supply to the heating system is normally available from the general topside (platform) power system. Topside equipment for power factor compensation and load symmetry is based on commercial components. Experiences from installed systems prove that the load current can be quite easily adjusted to give the required heating for the different operation modes.
Multi-Perspective Decision-making Cloud Computing Adoption Model for Small and Medium Enterprises (SMEs)

The research aims to test the model of integrated DOI theory and TOE framework to predict Cloud Computing (CC) decision-making intentions of SMEs, Izmir, Turkey. The survey data was collected from 140 Information Technology (IT) decision-makers via Google forms survey tool. Confirmatory factor analyses were made to examine the decision-making approach of SMEs. The study revealed that the variance of top management support and complexity explained 29.8% of the decision-making approach to CC adoption. The originality of the study is that the research on cloud computing in Turkey is scarce and not comprehensive either. In addition, they are not for Turkish SMEs. This research will bring together an introductory plan for cloud providers to understand the intentions of SMEs for adopting cloud computing. This research will also provide scholars with an in-depth analysis of the status contributing to the academic research in the field of ICT development in developing countries. This study will contribute to SMEs’ ICT infrastructure policies, and support governments in creating a legal framework to make laws for a secure environment for SMEs to reduce costs, and gain a competitive advantage over Large Enterprises (LEs). Doi: 10.28991/esj-2021-SP1-010 Full Text: PDF
Association between Dietary Factors and Constipation in Adults Living in Luxembourg and Taking Part in the ORISCAV-LUX 2 Survey

Constipation, a disorder of bowel movements, is among the most frequent gastrointestinal complaints in Western countries. Dietary constituents such as inadequate fiber intake have been related to constipation, but discrepancies exist in the findings regarding dietary factors. This study investigated the association between dietary patterns and bowel movements in adults living in Luxembourg. Data from 1431 participants from ORISCAV-LUX 2 (a cross-sectional survey) who completed a 174-item food frequency questionnaire (FFQ) were analyzed. A questionnaire-based constipation score was assessed by a validated scoring system. Confounders such as physical activity and serum/urine indicators were assessed. Women had higher constipation scores than men (p < 0.001). In food group-based regression models, a negative association was found between higher constipation score and intake of grains (Beta = −0.62, 95%CI: −1.18, −0.05) and lipid-rich foods (Beta = −0.84, 95%CI: −1.55, −0.13), while a positive association was found for sugary products (Beta = 0.54, 95%CI: 0.11, 0.97) (p < 0.05). In a nutrient-based regression model, a positive association was found between constipation score and total energy (Beta = 5.24, 95%CI: 0.37, 10.11) as well as sodium intake (Beta = 2.04, 95%CI: 0.21, 3.87), and a negative one was found for total fats (Beta = −4.17, 95%CI: −7.46, −0.89) and starch (Beta = −2.91, 95%CI: −4.47, −1.36) (p < 0.05). Interestingly, neither fruits and vegetables or dietary fiber were significantly associated with constipation. Thus, grains, lipid-rich foods, total fats and starch were associated with a lower constipation score, while sugary products, sodium, and higher energy intake were correlated with higher constipation.
Modeling and non-linear correction of two-dimension photoelectric position sensitive detector

A modeling and non-linear correction method for the two-dimension photoelectric position sensitive detector (PSD) is presented by means of a radial basis function (RBF) neural network. Utilizing its powerful ability in function approximation, the RBF network can perform the mapping between the PSD's readings and the light spot actual position. In order to obtain the mapping, the RBF network is trained by learning algorithm with the input/output data pairs of the PSD. The mapping is used as an inverse model of the PSD from the readings to the light spot actual position or as a forward model of it from the light spot actual position to the readings. The inverse model based on RBF network is used as a corrector. This model provides a linear response when the PSD's readings applied to the inputs of the RBF network during operation. The example shows that the measuring system with a proper RBF network correction can provide a high linearity over a wide position range. Furthermore, the forward model that expresses the characteristics of the PSD will be beneficial to provide the theoretical instruction for the analysis, design and application of the PSD.
The influence of some handle designs and handle height on the strength of the horizontal pulling action

The purpose of the present study was to illustrate the effect of the hand-object interface on the ability of a person to exert forces in different postures. Subjects performed one-handed maximal pulling exertions on four different handles, placed 1·0m and 1·75 m above the ground. The strength of manual exertion was significantly affected by handle type (p 0·01). Handles with the largest degree of hand-handle contact and those which permitted a power grip to be deployed, enabled the largest pulling forces to be produced. Under these conditions, force output was highly dependent on handle placement. However, placement of handles with poor hand-handle interfaces had little effect on maximal pulling strength. The inference that the hand-handle interface is the 'weak link1 in force transmission when intense pulling exertions are executed on poorly-designed handles has im.
Improvements of solder ball shear strength of a wafer-level CSP using a novel Cu stud technology

The solder ball shear test has been widely adopted in the electronics industry to estimate the strength of solder ball attachment of advanced electronic packages. A solder ball with low shear strength is usually considered as a weak solder joint in package reliability testing. Consequently, demands for increasing the solder ball shear strength have risen in recent years. This work attempts to enhance the solder ball shear strength of the wafer level chip scale package (WLCSP) by forming a Cu stud on the surface of the solder pad. The novel Cu stud design technology has been achieved by using a simple semiconductor manufacturing process. To investigate the impact of Cu stud, a three-dimensional (3-D) nonlinear finite element method is used for Cu stud design. Furthermore, the shear force-displacement curves, obtained by computational analysis, are compared with the experimental results to demonstrate the accuracy of the finite element models. This investigation also explores the effects of various parameters including the Cu stud's dimension, shape, and material properties on solder ball shear strength. The analytical results establish that a suitable size of Cu stud in a solder ball can effectively enhance the ball's shear strength.
In vitro assessment of genotoxic and cytotoxic effects of Artemisia annua L. tincture

The genus Artemisia (fam. Asteraceae) is one of the largest and widely distributed with around 500 species, majority used as aromatic and medicinal plants. Artemisia annua L. is widely used as a dietary spice, herbal tea, as a supplement, and in a non-pharmaceutical form for treatment of malaria and fever. It is orally consumed as capsules, extracts and tinctures and topically applied as an essential oil diluted in lotions and ointments. Artemisinin is the main constituent of Artemisia annua L. extracts. Since the discovery that the artemisinin is efficient in malaria treatment, there is also a growth in consumption of A. annua extracts for antitumour and even recently for antiviral treatments against SARS-CoV-2 infections. This study aimed to investigate genotoxic effect in peripheral blood culture and cytotoxic effects in cancer and normal cell lines, of commercially available A. annua L. tincture in series of dilutions. Both comet and neutral red uptake assays revealed dose-dependent genotoxicity and cytotoxicity of A. annua tincture dilutions. Comet assay revealed significantly increased DNA damage in peripheral blood cells while neutral-red assays showed increase in cytotoxicity (p<0.001) in both normal and cancer cell cultures treated with the lowest extract dilution compared to the highest one applied. Obtained results indicate caution needed in A. annua L. tincture use, especially when poorly diluted.
Early Cretaceous rapid exhumation processes in the southern Great Xing’an Range, NE China: implications for extensional geodynamics

ABSTRACT The Mesozoic-Cenozoic geological evolution of the southern Great Xing’an Range (GXR) has long been controversial since it is located in the superposed region of different tectonic regimes and involves complex interactions. Here, we present low-temperature thermochronological data from granitoids emplaced in multiple magmatic stages to delineate the tectono-thermal history and further understand the geodynamic process. Most zircon and apatite (U-Th)/He ages, within error, indicate Early Cretaceous: the zircon average (U-Th)/He ages range from 146.7 ± 8.7 to 120.0 ± 7.1 Ma, except for the oldest data (162.5 ± 9.6 Ma) and the apatite (U-Th)/He ages vary from 138.7 ± 8.2 to 94.8 ± 7.5 Ma, except for the youngest age (70.8 ± 4.3 Ma). Systematic numerical modelling reveals that a rapid cooling and exhumation process with rates of 2.5-10 oC/Ma and 0.07-0.29 mm/yr occurred in the southern GXR during the early Cretaceous (145–110 Ma). We propose that the rapid uplift and exhumation of intrusive rocks during the early Cretaceous is also a manifestation of the extensional regime in the southern GXR, which is dominated by the rollback of the subducted Paleo-Pacific oceanic plate superposed by the post-orogenic extensional collapse of the Mongol-Okhotsk belt. In addition, the slow exhumation process since the late Cretaceous (~0.01 mm/yr) suggests that the Paleo-Pacific Ocean tectonic regime has a weak impact on the southern GXR area.
Genome‐wide association mapping of Hagberg falling number, protein content, test weight, and grain yield in U.K. wheat

Abstract Association mapping using crop cultivars allows identification of genetic loci of direct relevance to breeding. Here, 150 U.K. wheat (Triticum aestivum L.) cultivars genotyped with 23,288 single nucleotide polymorphisms (SNPs) were used for genome‐wide association studies (GWAS) using historical phenotypic data for grain protein content, Hagberg falling number (HFN), test weight, and grain yield. Power calculations indicated experimental design would enable detection of quantitative trait loci (QTL) explaining ≥20% of the variation (PVE) at a relatively high power of >80%, falling to 40% for detection of a SNP with an R2 ≥ . 5 with the same QTL. Genome‐wide association studies identified marker‐trait associations for all four traits. For HFN (h 2 = .89), six QTL were identified, including a major locus on chromosome 7B explaining 49% PVE and reducing HFN by 44 s. For protein content (h 2 = 0.86), 10 QTL were found on chromosomes 1A, 2A, 2B, 3A, 3B, and 6B, together explaining 48.9% PVE. For test weight, five QTL were identified (one on 1B and four on 3B; 26.3% PVE). Finally, 14 loci were identified for grain yield (h 2 = 0.95) on eight chromosomes (1A, 2A, 2B, 2D, 3A, 5B, 6A, 6B; 68.1% PVE), of which five were located within 16 Mbp of genetic regions previously identified as under breeder selection in European wheat. Our study demonstrates the utility of exploiting historical crop datasets, identifying genomic targets for independent validation, and ultimately for wheat genetic improvement.
3D Bioprinted Spheroidal Droplets for Engineering the Heterocellular Coupling between Cardiomyocytes and Cardiac Fibroblasts

Since conventional human cardiac two-dimensional (2D) cell culture and multilayered three-dimensional (3D) models fail in recapitulating cellular complexity and possess inferior translational capacity, we designed and developed a high-throughput scalable 3D bioprinted cardiac spheroidal droplet-organoid model with cardiomyocytes and cardiac fibroblasts that can be used for drug screening or regenerative engineering applications. This study helped establish the parameters for bioprinting and cross-linking a gelatin-alginate-based bioink into 3D spheroidal droplets. A flattened disk-like structure developed in prior studies from our laboratory was used as a control. The microstructural and mechanical stability of the 3D spheroidal droplets was assessed and was found to be ideal for a cardiac scaffold. Adult human cardiac fibroblasts and AC16 cardiomyocytes were mixed in the bioink and bioprinted. Live-dead assay and flow cytometry analysis revealed robust biocompatibility of the 3D spheroidal droplets that supported the growth and proliferation of the cardiac cells in the long-term cultures. Moreover, the heterocellular gap junctional coupling between the cardiomyocytes and cardiac fibroblasts further validated the 3D cardiac spheroidal droplet model.
Novel Low-Frequency Rectangular-Loop Piezoelectric Energy Harvester

The ambient energy harvesting based on piezoelectric has become an important subject in recent research publications. A new rectangular-loop piezoelectric energy harvester(RLPEH) is proposed. The characteristic is analyzed by the finite element analysis (FEA) which includes the static analysis, modal analysis and harmonic response analysis. The analysis results show that the RLPEH could reduce the resonant frequency and improve the output voltage. The three order resonant frequency is 18.6Hz, 40.8Hz and 85.4Hz. The output voltage is 42V under 3m/s2 of acceleration and the effective bandwidth is 18.7Hz with output voltage above 10V.
Improving corrosion-resistance of silicon-glass micropackages using boron doping and/or self-induced galvanic bias

In this paper, we report upon two novel methods for improving the corrosion resistance of silicon-glass micropackages in high temperature saline soak tests. By using boron doping and/or galvanic biasing, we have shown that the dissolution of polysilicon can be reduced by several orders of magnitude. Physical models for improved corrosion resistance are also presented. Further tests on the packages in-vivo and in-vitro show that the package maintains long-term hermicity.
Large-signal analysis of Lo-Hi-Lo double-drift silicon IMPATT diodes at 50 GHz

Large-signal analysis of a lo-hi-lo double-drift silicon IMPATT diode at 50 GHz shows that the device is capable of output power of 1.1 W and efficiency of 20 percent for a device area of 2 × 10-5cm2at a dc biasing current density of 12 kA/cm2and ac voltage amplitude of 12 V. It is also found that, both output power values and efficiencies decrease with increasing enhanced leakage current.