Miracle-dz/UniFAR-FTUs huggingface dataset:
Study on adsorption of methylene blue by a novel composite material of TiO2 and alum sludge

A composite material of TiO2 and alum sludge (TiO2@AS) is reported in this paper. The samples of alum sludge (AS) and TiO2@AS were characterized using a field emission scanning electron microscope (FE-SEM), an energy dispersive spectrometer (EDS) and an Ultima IV X-ray diffractometer (XRD). In order to study the adsorption capacity and the adsorption mechanism of methylene blue by TiO2@AS in aqueous solution, three indexes — pH, adsorbent dosage and initial concentration of methylene blue — were investigated to evaluate the adsorption capacity of TiO2@AS. Moreover, thermodynamic, kinetic and isothermal model analyses of the adsorption process were carried out. The results showed that pH has little effect on the adsorption capacity. The maximum adsorption efficiency occurred at an optimized pH value of 11 for the aqueous solution. The adsorbed amount of methylene blue on TiO2@AS increased with the initial concentration of adsorbate and decreased with an increase in TiO2@AS dosage. The adsorption kinetics of methylene blue by TiO2@AS were in good agreement with the quasi-second-order kinetic model (R2 ≥ 0.9964), indicating that chemisorption is the main rate-controlling step. The Freundlich isotherm equation can best describe the experimental data (R2 = 0.9788). It is revealed that the adsorption is mainly multilayer adsorption. Because ΔG < 0 and ΔH > 0, the adsorption is a spontaneous endothermic process. Furthermore, the TiO2@AS can be regenerated under ultraviolet light, thus prolonging the service life of AS and facilitating a solution to the problem of adsorption plugging.
Determining the degree of accuracy of Combar-10 reagent strip in diagnosing bacterial meningitis

Meningitis is a dangerous infection because of the very delicate nature of the brain. Brain cells once killed, will not revitalize themselves. Therefore, if enough brain tissue is damaged by an infection, serious lifelong handicaps will remain. Incidence of meningitis is more frequent nowadays in childhood, where signs and symptoms are usually nonspecific. Early diagnosis and timely treatment are imperative in the management of children with meningitis. Several times, patients are submitted to lumbar puncture, but technical difficulty in obtaining enough material or a delay in the cytological and biochemical assay usually get in the way of promptly deciding on antibiotic therapy.
Amide Synthesis via Aminolysis of Ester or Acid with an Intracellular Lipase

A unique lipase (SpL) from Sphingomonas sp. HXN-200 was discovered as the first intracellular enzyme for the aminolysis of ester or acid to produce amide. Reactions of a series of esters and amines with SpL gave the corresponding amides 3a–g in high yield with high activity. SpL also showed high enantioselectivity and high activity for enantioselective ester aminolysis, producing amides (R)-3h–j in high ee from the corresponding racemic ester or amine. Moreover, SpL was found to be highly active for the aminolysis of carboxylic acid, which was generally considered infeasible with the known aminolysis enzymes. The aminolysis of several carboxylic acids afforded the corresponding amides 3a, 3d, 3k, 3l, and 3n in good yield. The intracellular SpL was expressed in Escherichia coli cells to give an efficient whole-cell biocatalyst for amide synthesis. Remarkably, high catalytic activity was observed in the presence of water at 2–4% (v/v) for free enzyme and 16% (v/v) for whole cells, respectively. Accordingly,.
Control of nitrogen doping in NaTaO3 synthesized by hydrothermal reaction and chemical state of nitrogen

Nitrogen‐doped NaTaO3 was synthesized through 1‐pot reaction, hydrothermal process using Ta3N5 as precursor. Changing concentration and amount of NaOH aqueous solution influenced nitrogen content in NaTaO3. Absorption edge of nitrogen‐doped NaTaO3 was extended at 570 nm, and absorbance in visible light region depended on nitrogen content in NaTaO3. Anodic photocurrent measured under visible light irradiation became larger with increasing nitrogen content in NaTaO3‐xNy. Under ultraviolet light irradiation (λ ≤ 400 nm), the highest anodic photocurrent was observed when nitrogen concentration was y = 0.024. It was possible to expand the wavelength range that can be effectively utilized for the photoelectrochemical reaction.
Understanding the Distribution and Structural Feature of Eucalyptus Lignin Isolated by γ-Valerolactone/Water/Acid System

In this study, an effective isolation method with γ-valerolactone (GVL)/water/acid system was carried out to extract lignin from Eucalyptus camaldulensis Dehnh. The detailed spatial distribution and structural features of lignin were studied thoroughly. The Raman spectra demonstrated that a preferential delignification first occurred in the cell corner middle lamella (CCML) and then in the secondary wall (S) region. The isolated lignin yields increased with the increment of acid concentration and treatment time, and the obtained lignin had a relatively high purity by comparison with double enzymatic lignin (DEL). Moreover, the breakage of β-O-4′ linkages and the degree of condensation increased with the increment of the treatment intensity, resulting in a small amount of β-O-4′ linkages existing in the extracted lignin. There was an obvious decrease of aliphatic hydroxyl groups and an increment of phenolic hydroxyl groups in the lignin preparations with the elevation of acid concentration and the treatmen.
Relationship between Methods of Training, Trainer and Management Support towards Effective Training

The research was conducted to study the factors that contribute to the effective training among academic staff of a higher learning institution. This research had focused only on the general types of training provided by department of Training unit to all the lecturers such as important training like basic teaching and learning workshop, research training, writing workshop, ICT Training, e-Learning and etc. By constructing a hypothetical research model to investigate the relationship of three moderating variables on the training participants (independent variables) towards the effective training (dependent variable), a survey questionnaire had been distributed to employees in that university who had attended training programs. Sampling that had been used in which approximately 200 lecturers in the campus will become the subject of the study. The respondents will be all of the permanent staff. The researchers used correlation test in order to measure the degree of relationship between two variables, testing the significance of the variable by using the Reliability Test, Correlation and Regression Analysis and Multiple Regression Analysis. From all these statistical analysis, the researchers had clearly able to indicate that the main contribution factor is management support that contribute strongly towards the effective training followed by training method and trainer’s caharacteristics. There were siginificant relationships between all the identifiable independent variables with the main variable of the study.
Synthesis and Characterization of Bioactive Quaternary Silicate Gel-glasses

Bioactive glasses and glass-ceramics were applied in bone fix applications, dental applications as well as in tissue engineering. In the current study, a new quaternary silicate bioglass S50P4 (50%SiO2–24.5%Na2O–21.5%CaO–4%P2O5) with different aging time (3, 5 and 7 days) was prepared by sol-gel method. These synthesized glasses were analyzed using X-ray powder diffraction (XRD), Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Whereas the bioactivity of the optimized samples were observed through in-vitro test using Hank’s Balanced Salt Solution (HBSS) at different soaking time (7 and 14 days). XRD results indicate that the crystalline patterns in gel-derived glass aged for 3 days exhibit stronger peaks compare to samples aged for 5 and 7 days. This could be attributed to the difference of water content inside the gels. Moreover, the peak at 2θ∼33° became sharper and more intense for longer soaking times corresponds to the apatite structure. Besides, in-vitro test shows, the formation of hydroxyl carbonated apatite layer (HCA) with finer grains.
Improved Evaluation of the Life Lost by HVDC Extruded Cables due to Long TOVs

Previously the author developed a procedure for estimating the life lost by HVDC extruded cables under the long Temporary Over-voltages (TOVs) that may arise in VSC HVDC cable systems. As the topic is gaining interest, here the procedure is improved to target an upper conservative limit of the aging effects of such TOVs. This goal is achieved in two steps. First the line length effect on insulation volume is considered via the so-called enlargement law for HVDC cables, as the longer the cable, the greater the insulation volume, and the number and size of defects; this lowers insulation endurance to applied stresses and raises the fraction of life lost at every single TOV. Second, a life model developed for harmonics superimposed onto rated voltage is included in the procedure to better address the challenge set by the fast peak of long TOVs. The improved procedure is applied to 320-kV and 525-kV cable designs. The results highlight that, with long lengths and conservative values of insulation parameters, the improved procedure provides orders-of-magnitude higher loss-of-life fractions, which in the most pessimistic case might be non-negligible for severely-aged cables in service since long time.
The Challenges of Measuring Multi-Word Expression Use in Conversation

This article introduces three important challenges and possible solutions when using spoken dialogue to measure the use of specific multi-word expressions. The first challenge is deciding whether to count precise and accurate use of target expressions only or whether to extend the count to include variation. The second challenge requires addressing the indirect nature of dialogue as a testing method. The third challenge is organizing data and preparing ways to clearly identify speakers within the dialogue. These challenges are illustrated with examples and potential solutions from my recent research investigating spoken use of multi-word expressions.
Conformational trimorphism of bis(2,6-dimesitylphenyl)ditelluride

Abstract Besides the previously known α-form (monoclinic, P21/c, Z=4) of bis(2,6-dimesitylphenyl)ditelluride, two new polymorphic modifications, namely the β-form (monoclinic, P21/c, Z=8) and the γ-form (triclinic, P1̅, Z=2), were obtained serendipitously during chemical reactions. In all three modifications, the individual molecules possess significantly different conformations and bond parameters, such as Te–Te bond lengths, C–Te–Te bond angles, C–Te–Te–C torsion angles and intramolecular Menshutkin interactions, which is also reflected in their non-covalent interactions with adjacent molecules in the crystal lattice via London dispersion and electrostatic forces. The interplay between intermolecular and intramolecular forces in these conformational polymorphs was investigated using quantum chemical calculations, which reveal that the β-form should be thermodynamically stable at absolute zero. In contrast, crystallization experiments and thermoanalytical investigations indicate that the α-form is stable at high temperatures and therefore, both forms might be related by enantiotropism.
Influence of Exogenous 6-Benzylaminopurine on Growth, Physiological Parameters, Proximate Content and Mineral Element Composition of Pot-Grown Solanecio biafrae

The influences of exogenous 6-benzylaminopurine (BAP) on shoot emergence, growth, fresh shoot weight, physiological parameters, proximate and mineral element contents of green-stemmed morphotype of Solanecio biafrae at early stage were investigated. Stem-cuttings were sprayed with solution containing concentrations (0, 10, 20, 30, 40, 50, 60, 70, 80, 90 or 100 mg L-1) of BAP a day after planting in plastic pots. Medium (60-70 mg L-1) BAP promoted highest number of shoot per stem-cutting, total number of leaves, total leaf area, shoot to root ratio, total soluble sugars, ash, carbohydrate, leaf Mg and Ca. Intermodal length, phenolic, crude fibre, leaf Na, P and Zn increased as BAP concentration increased. Shoot height, dry weight, chlorophylls a and b, total soluble protein, moisture, crude protein, fresh shoot weight and leaf Fe did not differ significantly (P>0.05) at medium to high (50-100 mg L-1) concentrations of BAP. The study concluded that 60 mg L-1 BAP is the best concentration as it promoted highest number of shoot per stem-cutting, total number of leaves, total leaf area, shoot height, dry weight, fresh shoot weight, shoot to root ratio, chlorophyll a and b, phenolics, total soluble sugars and proteins, crude protein, fat, ash and carbohydrate, leaf K, Mg and Ca.
Insilico analysis of Arabidopsis ferric reductase oxidases (FRO) proteins associated with iron homeostasis

The ferric reduction oxidase (FRO) gene family is involved in various biological processes of plants and plays an essential role in metal homeostasis, tolerance, and signaling networks in response to several abiotic stresses. Our study describes the structural, functional characterization, and evolutionary relationships of eight Arabidopsis FRO proteins. The studies predicted the subcellular localization of FRO proteins to the plasma membrane, mitochondria, and chloroplast organelles. The structural analysis revealed localization of proteins onto the first and fifth chromosomes having 8-9exons and 8-10 transmembrane helices. The protein features of FRO proteins revealed 699-747 amino acids having 79600.02-84126.3 (Da) molecular weight. The six highly conserved protein motifs were predicted with 45-50 amino acids long representing ferric chelate reductase family domains. The phylogeny tree constructed using Clustal W divided the FRO proteins into two clusters and the interactome network revealed the co-expression of COPT1, NRAMP1, NRAMP3, NRAMP4, FRD3, OPT3, IRT1, IRT2, ZIF1, PYE proteins along with the seven FRO proteins.
Ni–Co–O solid solution dispersed nanocrystalline Co3O4 as a highly active catalyst for low-temperature propane combustion

Co3O4 and NiO have been widely studied as catalysts for catalytic combustion because of their high oxygen mobility, both theoretically and experimentally. Research into their combination to make highly dispersed nanocrystalline Co3O4 is rare. Here we prepared a Ni–Co–O solid solution dispersed nanocrystalline Co3O4 of NiO–Co(0.3) as a highly active and stable catalyst for propane combustion by a simple co-precipitation method. Superior to pure oxides, the specific rate (μmolC3 gcat−1 h−1) of NiO–Co(0.3) at 170 °C is 2.5 times as high as pure Co3O4, whereas the pure NiO is inert at this temperature. The nanocrystalline Co3O4 particles surrounded by active O species are the main active sites for NiO–Co(0.3) catalyst. The synergistic effects between the nanocrystalline Co3O4 particles and Ni–Co–O solid solution with high oxygen mobility give the high propane combustion activity. Further research shows that the highly active performance relates directly to the surface Co content, Co2+ species and active O species. Our findings offer insight into the preparation of highly active nanocrystalline Co3O4 dispersed on transition oxides, which is different to that previously reported.
A Power Factor Corrected Resonant EV Charger Using Reduced Sensor Based Bridgeless Boost PFC Converter

A reduced sensor based bridgeless boost (BLB) power factor correction (PFC) converter fed full-bridge inductor–inductor capacitor (FBLLC) converter for electric vehicle (EV) charging, is presented in this article. This converter is a twin stage converter, where the first stage is a PFC-BLB converter operating in continuous conduction mode of its boost inductors, and the second stage is an FBLLC converter, which converts the output voltage of the PFC-BLB converter to an isolated low voltage for constant current/constant voltage (CC/CV) charging of an EV battery. The BLB converter is switched at fixed frequency using pulsewidth modulated control, whereas FBLLC converter employs a pulse frequency modulation control to enable CC/CV charging of EV battery. An experimental prototype of EV charger is developed and the digital control of PFC-BLB and FBLLC converter, is implemented using a 32 bit <inline-formula><tex-math notation="LaTeX">$TMS320F28035$</tex-math></inline-formula> digital signal processor to charge an EV battery with a maximum power of <inline-formula><tex-math notation="LaTeX">$2.7\text{ kW}$</tex-math></inline-formula> and a current of <inline-formula><tex-math notation="LaTeX">$50\text{ A}$</tex-math></inline-formula>.
Adaptation and validation of the Turkish version of the vaccine hesitancy 5 point Likert Scale

ABSTRACT The decrease in vaccine acceptance has been recognized as an emerging public health problem and there is therefore a need for reliable and validated tools that identify vaccine hesitancy. The objective of this study was to adapt and validate the Turkish version of the Vaccine Hesitancy 5-point Likert Scale which was originally developed by the WHO Strategic Advisory Group of Experts on Immunization. The study was carried out in a Family Health Center (FHC) in Istanbul over the period June 1-November 30, 2020. The participants were parents who had applied to the FHC for well-child visits and had a child ≤18 months of age. After the process of translation and back-translation, the Turkish version was pilot-tested, and its test-retest reliability was evaluated among 40 parents at a two-week interval. The validation was carried out with 306 parents through exploratory factor analysis. There was no statistical difference between the test-retest scores (p = .17). The intraclass correlation coefficient was 0.98 (p < .001). Cronbach’s alpha coefficient was 0.81. Factor analysis yielded two subscales that were named “confidence’ and ‘risk perception” and explained 63% of total variance. Our results suggest that the Turkish version of the Vaccine Hesitancy 5-point Likert Scale is a reliable and valid instrument.
Pengaruh Variasi Konsentrasi PVA dan HPMC Terhadap Stabilitas Fisik Masker Gel Peel-Off Ekstrak Metanol Biji Pepaya (Carica papaya L.)

ABSTRAK Carica papaya merupakan salah satu tanaman yang memiliki aktivitas antioksidan. Namun, biji C. papaya kurang dimanfaatkan, hanya digunakan sebagai bibit, dan sisanya dibuang. Sediaan yang dibuat dalam penelitian ini adalah masker gel peel off ekstrak metanol bji C. papaya dengan variasi konsentrasi HPMC dan PVA. Penelitian ini bertujuan menentukan pengaruh kombinasi HPMC dan PVA terhadap kestabilan formula gel selama perlakuan cycling test selama 6 siklus. Tiga formula sediaan masker gel peel off yaitu F1 (HPMC 2%: PVA 10%), F2 (HPMC 3%:PVA 9%), dan FIII (HPMC 4%: PVA 8%). Hasil evaluasi (daya lekat, daya sebar, pH, waktu kering, dan viskositas) penelitian dianalisis dengan menggunakan SPSS dan level kepercayaan 95%. Kombinasi HPMC dan PVA memberikan pengaruh yang signifikan terhadap nilai daya lekat, daya sebar, pH, viskositas, dan waktu mengering (p<0,05). Hasil stabilitas penyimpanan 6 siklus pada daya sebar dan daya lekat hanya FIII yang stabil, stabiltas pH FI, FII, FIII menunjukan kestabilan, sedangkan stabilitas viskositas baik FI, FII, dan FIII tidak menunjukkan kestabilan. Kata Kunci : Biji C. papaya, Gel masker peel off, HPMC, PVA ABSTRACT Carica papaya is a plant that has antioxidant activity. However, C. papaya seeds are underutilized by the community, only being use as the seed for proliferation and the rest is discarded. It the dosage form that made in this research is peel off gel mask of methanol extract from C. papaya seeds with variances concentration HPMC and PVA. This research determined the effect to the stability of the gel formulation during cycling test for 6 cycles. These types of formula that made were FI (HPMC 2%:PVA 10%), FII (HPMC 3%:PVA 9%), and FIII (HPMC 4%:PVA 8%). The evaluation results (pH, viscosity, drying time, spreading and adhesion ability) were analyzed using SPSS with 95% confidence level showed that variances concentration of combination HPMC and PVA had significant influence on the spreading and adhesion ability, pH, viscosity, and drying time test (p<0,05). The storage stability of 6 cycles on adhesive and spreading test only FIII was stable, pH stability at FI, FII, FIII were stable, while the viscosity stability at FI, FII, and FIII were not stable. Keywords: C. papaya seeds, peel off gel mask, HPMC, PVA
AAP4All: An Adaptive Auto Parallelization of Serial Code for HPC Systems

High Performance Computing (HPC) technologies are emphasizing to increase the system performance across many disciplines. The primary challenge in HPC systems is how to achieve massive performance by minimum power consumption. However, the modern HPC systems are configured by adding the powerful and energy efficient multi-cores/many-cores parallel computing devices such as GPUs, MIC, and FPGA etc. Due to increasing the complexity of one chip many-cores/multi-cores systems, only well-balanced and optimized parallel programming technique is the solution to provide substantial increase in performance under power consumption limitations. Conventionally, the researchers face various barriers while parallelizing their serial code because they don’t have enough experience to use parallel programming techniques in optimized way. However, to address these obstacles and achieve massive performance under power consumption limitations, we propose an Adaptive and Automatic Parallel programming tool (AAP4All) for both homogeneous and heterogeneous computing systems. A key advantage of proposed tool is an auto recognition of computer system architecture, then translate automatically the input serial C++ code into parallel programming code for that particular detected system. We also evaluate the performance and power consumption while computing the proposed AAP4All model on different computer architectures, and compare the results with existing state-ofthe-art parallel programming techniques. Results show that the proposed model increases the system performance substantially by reducing power consumption as well as serial to parallel transformation effort.
Deformation of an inner valence molecular orbital in ethanol by an intense laser field

Orbital deformation on a suboptical cycle time scale is revealed by orientation dependence of tunnel ionization. Valence molecular orbitals play a crucial role in chemical reactions. Here, we reveal that an intense laser field deforms an inner valence orbital (10a′) in the ethanol molecule. We measure the recoil-frame photoelectron angular distribution (RFPAD), which corresponds to the orientation dependence of the ionization probability of the orbital, using photoelectron-photoion coincidence momentum imaging with a circularly polarized laser pulse. Ab initio simulations show that the orbital deformation depends strongly on the laser field direction and that the measured RFPAD cannot be reproduced without taking the orbital deformation into account. Our findings suggest that the laser-induced orbital deformation occurs before electron emission on a suboptical cycle time scale.