Miracle-dz/UniFAR-FTUs huggingface dataset:
Facile Synthesis of Robust Metal-Organic Framework (MOF-5) for Chromium (VI) Decontamination from Wastewater

Herein, for the first time, we investigate the adsorption performance of nanoZn benzenedicarboxylate metal-organic framework (nanoMOF-5) as an efficient adsorbent material for Cr (VI) decontamination from polluted water. The synthesized Zn MOF-5 was fully characterized via FT-IR, XRD, HRTEM, BET, and TGA techniques. Moreover, the prepared Zn MOF-5 revealed a prominent surface area of 1169.32 m2 g-1, demonstrating its ability to be utilized as a capable adsorbent material. The adsorption profile of Cr (VI) onto the fabricated Zn MOF-5 was performed against the various parameters such as contact time, dosage, and initial Cr (VI) concentration. The optimum dosage from the Zn MOF-5 for 81.03% adsorption of 25 ppm Cr (VI) was 0.5 g L-1 at pH=7 after 15 min. The Cr (VI) decontamination performance of the synthesized Zn MOF-5 recorded the maximum monolayer adsorption capacity of 91.22 mg/g. These data demonstrated that the synthesized nanoZn MOF-5 is a promising adsorbent material for the removal of Cr (VI) from wastewater. Keywords: Zinc Metal-Organic Framework (MOF-5), Cr (VI) Decontamination, Isotherm and Kinetics, Recyclability.
Models of Electrode-Dielectric Interfaces in Ferroelectric Thin-Film Devices

We discuss electrode-dielectric interfaces in ferroelectric thin films and thin films that have high dielectric constants. We consider the charge on the electrodes in several cases, and focus on the effects that arise from this charge being distributed over a finite length (i.e. the Thomas-Fermi screening length). The effects differ for high κ dielectrics, where a fraction of the applied potential now falls across the electrodes and not the film, and materials with a ferroelectric polarization where the screening of the field in the electrodes sets a scale for the depolarization field. The effects of space charge can be easily incorporated. We also discuss the manner in which high concentrations of oxygen vacancies near the interface arise via a combined grain-boundary and bulk diffusion process, and the effect this charge has on the characteristics of the interface (for example, the Schottky barrier height).
Characterization of microorganisms associated with the degradation of sawdust and woodchips

Microorganisms play a vital role in the degradation of organic matters such as Sawdust and woodchips. In this study, the Serial dilution method and pour plate techniques were used according to microbiological standards. The media used were nutrient agar, sabouraud dextrose agar, and cellulolytic medium to identify microorganisms and inoculated them into the Sawdust and woodchips and kept for 30 days at 37oC and 25oC. The total viable bacterial count for Sawdust and woodchips ranged between 9.0×103 - 6.0×103and 1.96×103 - 1.48×103, respectively. A total of 12 organisms were identified according to the biochemical reactions, six bacteria, and six fungi. Bergy’s manual of determinative bacteriology confirmed the organism as Escherichia coli, Pseudomonas aeruginosa, Klebsiella sp, Staphylococcus aureus, Bacillus cereus, and Cellulomona sp. The fungal species identified include Rhizopus sp, Mucor sp, Saccharomyces cerevisiae, Candida sp, Aspergillus niger, and Aspergillus flavus. The bacteria with the highest potential to degrade Sawdust and Woodchips are Cellulomonas sp. (20.9%), Klebsiella sp (17.8%), Escherichia coli (8.3%), Bacillus cereus (7.15%), and Staphylococcus sp (6.2%). Furthermore, the fungi capable of degrading the Sawdust and woodchips are Mucor sp (19.90%), Aspergillus flavus (17.8%), Aspergillus niger (17.3%), Rhizopus (16.9%), and Saccharomyces cerevisiae (15.55%). From these results, it can be concluded that some microorganisms could be used for the biodegradation of lignocellulose materials.
NUTRITIONAL, PHYSICOCHEMICAL STABILITY, MICROBIAL SURVIVABILITY AND SENSORIAL EVALUATION OF LEGUME YOGURTS

Legumes and probiotics are versatile food ingredients that can be incorporated into nutritious food products. In this study, legume yogurts from legume flours (8% w/w) and legume milks (16% w/w) were formulated using soybean (Glycine max), pigeon pea (Cajanus cajan), and mung bean (Vigna radiata). The formulations were incorporated with sugar (7%), xanthan gum (0.5%), and commercial mix cultures containing starter cultures (Streptococcus thermophilus and Lactobacillus bulgaricus) and probiotics (L. acidophilus, L. Casei, and Bifidobacterium longum), followed by fermentation at 37°C until they reached pH 4.5. Legume yogurts were analyzed for their chemical compositions, amino acid content, and sensory evaluation. Changes in pH, titratable acidity, color, water holding capacity (WHC), rheological properties, and microbial survivability were also evaluated during storage at 4°C for 28 days. Total solid (≥11.63%), moisture (≥81.44%), and protein (1.62 to 5.12%) contents were recorded, while glutamic acid, aspartic acid, and lysine were the most prevalent amino acids detected in the legume yogurts. During storage, the pH significantly decreased (P>0.05) while the titratable acidity increased. The legume yogurts showed shear-thinning properties (n<1) with reduced WHC during storage. The lactic acid bacteria survivability remained ≥7 log cfu/ml until the end of storage, except for B. longum. Desirable consistency, sweetness, and sourness were obtained from the sensorial evaluation. However, there was also an unfamiliar taste that developed from the products which affected their overall acceptability. In conclusion, legumes are great lactic acid bacteria carrier and their utilization provide a promising alternative for dairy substitutes.
Spheronized drug microcarrier system from canola straw lignin

ABSTRACT Inhomogeneous lignin from a canola (rapeseed) straw was isolated and valorized as regularly shaped spherical microparticles for drug delivery formulations. Lignin with a purity of 83% and broad molecular weight distribution (Ð > 5.0) was extracted by alkali pulping and acetylated to increase spheronization ability. Lignins with high degrees of acetylation (0.76 and 0.89) were successfully assembled into microparticles with uniform sizes (approximately 2 μm) and smooth spherical surfaces via solvent–antisolvent precipitation. Hydrophobic coumarin 153 and positively charged ciprofloxacin were used as model drugs to assess the encapsulation and release performance of lignin microparticles. Highly acetylated lignin microparticles displayed encapsulation efficiencies of 89.6% for coumarin 153% and 90.6% for ciprofloxacin. Scanning electron microscope images showed that coumarin 153 was encapsulated in the hydrophobic core, while ciprofloxacin was adsorbed on the less hydrophobic shell. The synthesis of lignin microcarriers not only provides a facile approach to utilizing waste canola straw lignin for drug delivery matrices but also has the potential to serve as an alternative lignin powder feedstock for bio-based materials. GRAPHICAL ABSTRACT
Invertibility and Explicit Inverses of Circulant-Type Matrices with -Fibonacci and -Lucas Numbers

Circulant matrices have important applications in solving ordinary differential equations. In this paper, we consider circulant-type matrices with the -Fibonacci and -Lucas numbers. We discuss the invertibility of these circulant matrices and present the explicit determinant and inverse matrix by constructing the transformation matrices, which generalizes the results in Shen et al. (2011).
A Statistical Analysis of Sporadic-E Characteristics Associated with GNSS Radio Occultation Phase and Amplitude Scintillations

Statistical GNSS-RO measurements of phase and amplitude scintillation are analyzed at the mid-latitudes in the local summer for a 100 km altitude. These conditions are known to contain frequent sporadic-E, and the S4-σϕ trends provide insight into the statistical distributions of the sporadic-E parameters. Joint two-dimensional S4-σϕ histograms are presented, showing roughly linear trends until the S4 saturates near 0.8. To interpret the measurements and understand the sporadic-E contributions, 10,000 simulations of RO signals perturbed by sporadic-E layers are performed using length, intensity, and vertical thickness distributions from previous studies, with the assumption that the sporadic-E layer acts as a Gaussian lens. Many of the key trends observed in the measurement histograms are present in the simulations, providing a key for understanding the complex mapping between layer characteristics and impacts on the GNSS-RO signals. Additionally, the inclusion of Kolmogorov turbulence and a diffusion-limited threshold on the lens strength/(vertical thickness)2 ratio helps to make the layers more physically realistic and improves agreement with the observations.
Evaluation of Anti-GAD65 and HbA1c Prevalence among Newly Diagnosed Type 1 Diabetes of Some Iraqi Children

Type 1 diabetes mellitus (T1DM) is a chronic autoimmune illness defined by the gradual and selective destruction pancreatic beta-cells throughout childhood or adolescents. Anti-Glutamic acid decarboxylase 65 (anti-GAD65) is circulating autoantibodies to insulin secreting pancreatic β-cells antigens, and considered as one of the islet cell autoimmunity markers. Hemoglobin A1C (HbA1c) is a blood glucose monitoring measurement that is used as an indication of blood glucose average measurement over a period of several months. According to the significance of prior subjects and in order to have a greater understanding, this study is planned to evaluate the anti-GAD65 and HbA1c frequency and their association among T1DM children. One hundred of new onset T1DM patients consist of males and females with ages ranging from 1-15 years. Blood samples were collected for biochemical and immunological study. The present study results show anti-GAD65 in 87% were with mean concentration (69.03 IU/ml), 14% with mean concentration (3.8 IU/ml) of total T1DM patients. While the results of estimation of HbA1c level in the present study showed a total mean average of HbA1c was (11.22 %) in newly diagnosed T1DM patients. The association between anti-GAD65 and HbA1c showed that positive anti-GAD65 were with (11.75 %) mean level of HbA1c, in compared to (7.66 %) mean level of HbA1c in negative anti-GAD65 T1DM group and that HbA1c levels were significantly higher, according to statistical analysis in positive anti-GAD65 patients than in those who had negative anti-GAD65 at (P < 0.01), suggesting that autoimmunity was found to be involved in glycemic indices reflected by HbA1c levels particularly among very young children who had been developed type 1 diabetes.
Small-energy asymptotics for the Schrödinger equation on the line

The one-dimensional Schrödinger equation is considered when the potential is real valued and integrable and has a finite first moment. The small-energy asymptotics of the logarithmic spatial derivative of the Jost solutions are established. Some consequences of these asymptotics are presented, such as the small-energy limits of the scattering coefficients and a simplified characterization of the scattering data for the inverse scattering problem. When the potential also has a finite second moment, some improved results are given on the small-energy asymptotics of the scattering coefficients and the logarithmic spatial derivatives of the Jost solutions.
Are football referees really biased and inconsistent?: evidence on the incidence of disciplinary sanction in the English Premier League

Summary. The paper presents a statistical analysis of patterns in the incidence of disciplinary sanction (yellow and red cards) that were taken against players in the English Premier League over the period 1996–2003. Several questions concerning sources of inconsistency and bias in refereeing standards are examined. Evidence is found to support a time consistency hypothesis, that the average incidence of disciplinary sanction is predominantly stable over time. However, a refereeing consistency hypothesis, that the incidence of disciplinary sanction does not vary between referees, is rejected. The tendency for away teams to incur more disciplinary points than home teams cannot be attributed to the home advantage effect on match results and appears to be due to a refereeing bias favouring the home team.
Modeling and Analysis of the Crossfeed Servo System of a Heavy-Duty Lathe with Friction

The performance of feed servo system has an important effect on the path tracking and positioning accuracy of computer numerical control (CNC) machine tools. The nonlinearity of friction can lead to the occurrences of unstable behavior of the feed servo system, such as stick-slip motion and oscillation. The crossfeed servo system of a heavy-duty lathe with closed loop control subjected to friction is studied in this article. The multi-degree of freedom (MDOF) mechanical and mathematical models of the crossfeed servo system are established. In the models, the torsional stiffness of shaft, meshing stiffness of gears, ballscrew-nut pair contacting stiffness, axial stiffness of the bearing, and the ballscrew and the kinematical friction force between up and down guideways are considered. The weakest link of the mechanical transmission system of the feed system is found by simulations. In the field test, the critical stick slip feed velocity at different feed position is measured by the Renishaw XL laser interferometer. And the relation curve of the critical stick slip velocity versus the axial stiffness of the ballscrew is obtained. The change tendency of the simulation results and that of the experimental results matches well. The research conclusions can provide a theoretical support for the optimal design and performance prediction of the feed servo system of heavy-duty lathes.
Prognostic Signature for Human Umbilical Cord Mesenchymal Stem Cell Treatment of Ischemic Cerebral Infarction by Integrated Bioinformatic Analysis

In recent studies, stem cell-based therapy is a potential new approach in the treatment of stroke. The mechanism of human umbilical cord mesenchymal stem cell (hUMSC) transplantation as one of the new approaches in the treatment of ischemic stroke is still unclear. The aim of this study was to determine the traits of immune responses during stroke progression after treatment with human umbilical cord blood MSCs by bioinformatics, to predict potential prognostic biomarkers that could lead to sex differences, and to reveal potential therapeutic targets. The microarray dataset GSE78731 (mRNA profile) of middle cerebral artery occlusion (MCAO) rats was obtained from the Gene Expression Omnibus (GEO) database. First, two potentially expressed genes (DEGs) were screened using the Bioconductor R package. Ultimately, 30 specific DEGs were obtained (22 upregulated and 353 downregulated). Next, bioinformatic analysis was performed on these specific DEGs. We performed a comparison for the differentially expressed genes screened from between the hUMSC and MCAO groups. Gene Ontology enrichment and pathway enrichment analyses were then performed for annotation and visualization. Gene Ontology (GO) functional annotation analysis shows that DEGs are mainly enriched in leukocyte migration, neutrophil activation, neutrophil degranulation, the external side of plasma membrane, cytokine receptor binding, and carbohydrate binding. KEGG pathway enrichment analysis showed that the first 5 enrichment pathways were cytokine-cytokine receptor interaction, chemokine signal pathway, viral protein interaction with cytokine and cytokine receptor, cell adhesion molecules (CAMs), and phagosome. The top 10 key genes of the constructed PPI network were screened, including Cybb, Ccl2, Cd68, Ptprc, C5ar1, Il-1b, Tlr2, Itgb2, Itgax, and Cd44. In summary, hUMSC is likely to be a promising means of treating IS by immunomodulation.
Variations of Box Plots

Abstract Box plots display batches of data. Five values from a set of data are conventionally used; the extremes, the upper and lower hinges (quartiles), and the median. Such plots are becoming a widely used tool in exploratory data analysis and in preparing visual summaries for statisticians and nonstatisticians alike. Three variants of the basic display, devised by the authors, are described. The first visually incorporates a measure of group size; the second incorporates an indication of rough significance of differences between medians; the third combines the features of the first two. These techniques are displayed by examples.
Adjusted spectral correction method for calculating extreme winds in tropical-cyclone-affected water areas

Abstract. A method is developed to calculate the extreme wind for tropical-cyclone-affected water areas. The method is based on the spectral correction method by Larsén et al. (2012) in connection with the use of numerically modeled data, where an enhancement coefficient is derived as a function of wind speed to reflect the large wind fluctuation during tropical cyclones. This is done through calibration with the estimates from Ott (2005), who used the best track data and Holland model to estimate the extreme wind over the typhoon-affected area in the western North Pacific. The method is applied in the current study to three regions where the 50-year winds with an effective temporal resolution of 10 min are obtained at 10, 50, 100 and 150 m. The results are in agreement with Ott (2005) over their study domain, though with much more spatial details of the extreme wind distribution.
Adaptive Finite Element Method for an Electromagnetic Coefficient Inverse Problem

We present an adaptive finite element method for solution of an electromagnetic coefficient inverse problem to reconstruct the dielectric permittivity and magnetic permeability functions. The inverse problem is formulated as an optimal control problem, where we solve the equations of optimality expressing stationarity of an associated Lagrangian by a quasi‐Newton method: in each step we compute the gradient by solving a forward and an adjoint equation. We formulate an adaptive algorithm which can be used to efficiently solve electromagnetic coefficient inverse problem.
Students’ Ways of Understanding Academic Writing

Universities have placed academic writing skills as valuable skills for university students; some universities have compulsory modules for undergraduates, and some have dedicated writing centers for students to seek assistance in composing academic writing. Without a doubt, writing in English, particularly for those whose first language is not English, is considered a complex and challenging skill to master. In addition, academic writing is even more complex, as an essential element of academic writing is the inclusion of claims and opinions. Therefore, the struggle observed is that students cannot voice their opinions in a formal writing context, which perhaps resulted in the structure of the written piece not being coherent and cohesive as per the standard of academic writing. In order to achieve its aim, this study will use a phenomenographic research approach to investigate the undergraduate’s conceptions of academic writing. A phenomenography approach is used in this study because students’ experience composing academic writing would be the focus, and the research object would look at the variation in ways of experiencing such phenomena. The study relates to learners from various faculties at the University with a common ground of their English language proficiency that is used to gain entry to the University.
MTARC1 and HSD17B13 Variants Have Protective Effects on Non-Alcoholic Fatty Liver Disease in Patients Undergoing Bariatric Surgery

The severity of hepatic steatosis is modulated by genetic variants, such as patatin-like phospholipase domain containing 3 (PNPLA3) rs738409, transmembrane 6 superfamily member 2 (TM6SF2) rs58542926, and membrane-bound O-acyltransferase domain containing 7 (MBOAT7) rs641738. Recently, mitochondrial amidoxime reducing component 1 (MTARC1) rs2642438 and hydroxysteroid 17-beta dehydrogenase 13 (HSD17B13) rs72613567 polymorphisms were shown to have protective effects on liver diseases. Here, we evaluate these variants in patients undergoing bariatric surgery. A total of 165 patients who underwent laparoscopic sleeve gastrectomy and intraoperative liver biopsies and 314 controls were prospectively recruited. Genotyping was performed using TaqMan assays. Overall, 70.3% of operated patients presented with hepatic steatosis. NASH (non-alcoholic steatohepatitis) was detected in 28.5% of patients; none had cirrhosis. The increment of liver fibrosis stage was associated with decreasing frequency of the MTARC1 minor allele (p = 0.03). In multivariate analysis MTARC1 was an independent protective factor against fibrosis ≥ 1b (OR = 0.52, p = 0.03) and ≥ 1c (OR = 0.51, p = 0.04). The PNPLA3 risk allele was associated with increased hepatic steatosis, fibrosis, and NASH (OR = 2.22, p = 0.04). The HSD17B13 polymorphism was protective against liver injury as reflected by lower AST (p = 0.04) and ALT (p = 0.03) activities. The TM6SF2 polymorphism was associated with increased ALT (p = 0.04). In conclusion, hepatic steatosis is common among patients scheduled for bariatric surgery, but the MTARC1 and HSD17B13 polymorphisms lower liver injury in these individuals.