Miracle-dz/UniFAR-FTUs huggingface dataset:
Synthesis of Nanocrystalline(Co_(0.5)Cu_(0.5)(MnFe)O_4 Ceramic Pigment via Solution Combustion Technique

Nanocrystalline(Co_(0.5)Cu_(0.5))(MnFe)O_4 black ceramic pigment was synthesized by a solution combustion method with cobalt nitrate,copper nitrate,manganese nitrate,ferric nitrate as oxidants and DL-alanine as an organic fuel.The precursor was analyzed by thermogravimetry-differential scanning calorimetry.The phase structure,crystallite/particle size,morphology and color property were characterized by X-ray diffraction,scanning electron microscopy and spectrophotometry,respectively.The results show that the reaction can be completed at 230℃ at the stoichiometric ratio of fuel to nitrates,and a higher ignition temperature can favor the product formation.The pigment product with the crystallite size of 16.4 nm and the particle size of 1 μm was obtained at the stoichiometric ratio of fuel to nitrates and 400℃. In addition,the influence of potassium chloride on the synthesis of the nanocrystalline pigment was also investigated.It is indicated that the pigment product with the crystallite size of 10.8 nm and the particle size of 300 nm obtained in the presence of potassium chloride is smaller than and more dispersive than that in the absence of potassium chloride in the synthesis.The pigment synthesized with potassium chloride has a higher tinting strength in ceramic glazes.
Factors Associated with Dating Behavior of Adolescents in North Coastal Line, West Java

Background: Interest to the opposite sex is one changing that is happened in adolescence. Dating behavior of adolescents can be the beginning of premarital sex that will impact on the emergence of adolescent reproductive health problems such as unintended pregnancy and STDs/HIV/AIDS. The purpose of this study was to give description of factors related to dating behavior of early adolescents in North Coastal line, West Java. Subject and Methods: Type of this research was descriptive analytic with cross sectional design. The research was conducted in Pusakajaya Public Junior High School 1 and 2, Subang Regency. Population of this study was all of students at class VII in the selected schools. Sample of the study determined by purposive sampling technique with criteria the students ever had a lover or currently they were having a boyfriend/girlfriend. Number of respondents were 269 students. Data collection was done by interview using questionnaire as a tool. Data was reviewed using univariate and bivariate analysis. Results: Results of this study showed that 36,8% of the respondent had risky dating behavior, 25,7% did not live with their parent, 57,2% of them had low religiosity,74,7% had lack of knowledge in sexuality, 47,6% had negative attitude toward risky dating, 53,9% ever accessed pornography content and 48,3% had friend with risky dating behavior. Using Chi Square test to analyze showed that factors related to risky dating behavior were low religiosity (OR=44,68 ;95%CI=15,65 to 127,56; p=0,000), lack of knowledge (OR=14,34; 95%CI=5,03 to 40,87; p=0,000), negative attitude (OR=34,73; 95%CI=16,01 to 75,35; p=0,000), accessed pornography content (OR=79.02; 95%CI=23,89 to 261,33; p=0,000) and negative behavior of friends (OR=201,3 ;95%CI=47,19 to 859,04; p=0,000). Conclusion: There was a significant relationship between religiosity, knowledge, attitude, access to pornography content and dating behavior of friends with risky dating behavior. Keywords: factors, risky, dating behavior, early adolescent, north coastal line Correspondence: Juariah.The Agency of Research and Development West Java Province. Jl. Kawaluyaan Indah Raya No. 6, Bandung, Indonesia. E-mail: ai_arriandhi@yahoo.co.id. Mobile: 081313452500 DOI: https://doi.org/10.26911/the7thicph.02. 17
Physicochemical, microbiological, and sensory attributes of chitosan-coated grass carp (Ctenopharyngodon idellus) fillets stored at 4°C

ABSTRACT This study investigated the effect of chitosan coating (1 and 2%) on the quality of grass carp fillets stored at 4°C for 20 days. During storage, the physicochemical properties (pH, thiobarbituric acid value, total volatile basic nitrogen value, trimethylamine nitrogen value, K-value, water loss, and instrumental texture), microbiology (total viable count and psychrotrophic count), and sensory properties were evaluated. The results showed that chitosan coating could effectively inhibit bacterial growth, improve physicochemical and sensory qualities, and it reduced the deterioration of the quality of grass carp fillets. Compared with fillets without chitosan coating, the shelf life of fillets with 1 and 2% chitosan coating was extended by ~3 and 6–7 days, respectively.
First-Principle Studies of Phonons III-N Compound Semiconductors in Wurtzite Structure

 Abstract—The phonon dispersion relations and density of states of the nitrides BN, AlN, GaN and InN in the wurtzite structure are investigated by using separately the local density approximation (LDA) and the generalized gradient approxi- mation (GGA) within the framework of density functional theory. The results show that the highest optical phonon frequency at the Brillouin zone center decreases, but the phonon band gap increases, with increasing the cation/anion mass ratio. The frequencies calculated with GGA are lower than those with LDA. The GGA is more suitable for AlN and GaN, but the LDA for BN and InN. dynamical properties of the GaN, AlN, BN and InN by the first-principle calculation based on the density functional theory. The exchange-correlation potentials in the local density approximation (LDA) (12) and the generalized gradient approximation (GGA) (13) are separately used in the calculations. The optimum plane-wave energy cut-off has been tested carefully by keeping the total energy error less than 0.001 Hartree, and is determined as 45 Ryd for all these compounds. A 3  3  3 Monkhorst-Pack mesh and ten special k point have been used to perform the Brillouin zone (BZ) integration. The self-consistent convergence of the total energy is taken to be 10 -6 eV/atom, in order to obtain accurately the phonon dispersion curves. Moreover, a 444 q mesh is employed for the force constant calculation in the first BZ by interpolation. The whole calculation is carried out by using the Quantum ESPRESSO code (14), and the calculated results of the phonon frequencies and densities of states (DOS) are shown in Fig. 1 to Fig. 4. III. RESULTS AND DISCUSSION To obtain the equilibrium lattice constant a, c and the internal geometrical constant u, we fit the energy versus volume curves to the Murnaghan equation of state. Table I lists the calculated values of the structural parameters in this work. It is seen that our results are in good agreement with the previous theoretical and experimental values.
Delineating Salinity and Sodicity Distribution in Major Soil Map Units of El Paso, Texas, Using Electromagnetic Induction Technique

A majority of the irrigated area in the Trans-Pecos basin in the United States is affected by both salinity and sodicity that affect the long-term viability of irrigated agriculture in the region. Accurate information on spatial distribution of salinity and sodicity in the irrigated areas at a field scale is necessary for developing effective management practices. Currently, information on the amount and the distribution of salts within the irrigated areas of the Trans-Pecos basin is not available. Conventional method of soil salinity (saturated paste electrical conductivity) and sodicity (sodium adsorption ratio) assessment at a high spatial resolution is expensive, time consuming, and labor intensive. Electromagnetic induction technique can offer a low-cost, noninvasive, and rapid alternative for determining the spatial distribution of both salinity and sodicity. In this study, we evaluated the accuracy of EMI technique to delineate salt and sodicity distribution within a 12-ha study site that had all four dominant soil map units (Saneli-clayey over sandy or sandy-skeletal, montmorillonitic [calcareous], thermic Vertic Torrifluvents; Tigua-very fine, montmorillonitic (calcareous), thermic Vertic Torrifluvents; Harkey-coarse-silty, mixed [calcareous], thermic Typic Torrifluvents; Glendale-fine-silty, mixed [calcareous], thermic Typic Torrifluvents) of the Trans-Pecos basin. Salinity and sodicity values estimated by EMI technique ranged from 0.73 to 10.55 dS m−1 and sodium adsorption ratio ranged from 1.2 to 21.6 mmol1/2 L−1/2. Results of this project indicated that the EMI technique can produce accurate information on salinity distribution. Soil clay and moisture content at the time of the survey strongly influenced the accuracy of the EMI technique.
LAUNDRY WASTEWATER TREATMENT USING ELECTROCOAGULATION/FLOTATION AND ELECTRO-FENTON PROCESSES

Several laundry houses throughout Tehran consume a large amount of water each day and discharge the resulting wastewater into septic tanks or municipal sewage system without any suitable pretreatment. This would result in severe contamination and other serious environmental issues. In the present study, performance of electrocoagulation/flotation process with aluminum and iron electrodes is compared with electro-fenton process for the simultaneous removal of chemical oxygen demand (COD), phosphate and turbidity from laundry wastewaters. The effects of operative chemical and electrochemical variables such as initial pH and hydrogen peroxide concentration, electrode arrangement, current density and electrolysis time on removal efficiency of COD, phosphate and turbidity were also investigated and optimized. During the optimization of effective parameters in these processes, energy consumptions and removal efficiencies were considered simultaneously. Introduction Electrocoagulation/flotation process is an electrochemical method for treatment of polluted water or wastewater. Through the applied electric current to aluminum sacrificial anodes, aluminum corrodes produce coagulation agents in solution (such as aluminum hydroxide). The produced coagulation agent sticks to pollutants in the water or wastewater and form large size flocs that can be sedimentated. Besides, released hydrogen gas at the cathode which appears as fine bubbles binds suspended particles and float them to the top of the electrochemical reactor. In electro-fenton method hydrogen peroxide was added into electrcoagulation system, so fenton reaction was formed in the process. Fig. 1. The schematic experimental setup in the study Materials and Methods Experiments were carried out in a 3.6dm3 electrochemical reactor mobilized with a magnetic stirrer for better solution mixture. Aluminum and iron plates were used as anodes and cathodes. The dimensions of plates were 180×90×1mm and the effective area of each electrode submerged in wastewater was 117cm2. Inter electrode spacing was 2cm. The electrodes were connected to a D.C. power supply (0-5A and 0-60V). The batch experimental setup is schematically shown in figure 1. Corresponding Author: Tel: +98 21 61113163 E-mail: bamin@ut.ac. ir Ar ch iv of S ID
The Relationship Between Education Outputs, Education Expenditure, and Economic Growth in Saudi Arabia

The present study investigated the relationship between education outputs, Education expenditure, and economic growth in Saudi Arabia for the time period of 1986–2016. The results obtained after employing the Autoregressive Distributed Lag (ARDL) model revealed a long-term relationship between the studied variables, an inverse relationship between the number of graduates and growth in the long term, whereas a non-significant positive relationship appeared in the short -term. Findings indicate also that public spending in education has a positive and significant impact on economic growth in the long run. Furthermore, he observed that a 1% increase in public expenditure in education contributes 18% increase in GDP per capita in the long run. This is in line with economic theory and previous research showing that expenditure on education leads to a rise in GDP per capita and economic growth rates. The recommendations of this study are fundamental to the Kingdom of Saudi Arabia.
Predicting dropout in online learning environments

Online learning environments became popular in recent years. Due to high attrition rates, the problem of student dropouts became of immense importance for course designers, and course makers. In this paper, we utilized lasso and ridge logistic regression to create a prediction model for dropout on the Open University database. We investigated how early dropout can be predicted, and why dropouts occur. To answer the first question, we created models for eight different time frames, ranging from the beginning of the course to the mid-term. There are two results based on two definitions of dropout. Results show that at the beginning AUC of the prediction model is 0.549 and 0.661 and rises to 0.681 and 0.869 at mid-term. By analyzing logistic regression coefficients, we showed that at the beginning of the course demographic features of the student and course description features are the most important variables for dropout prediction, while later student activity gains more importance.
The adjuvant chemotherapy can be omitted for lepidic predominant lung adenocarcinoma in stage IB of the 8th TNM staging system.

ObjectivesThis study was designed to investigate whether the outcomes of adjuvant chemotherapy are affected by the lung adenocarcinoma predominant (AP) in stage IB according to the 8th UICC staging system. Methods From 2008 through 2015, 293 patients with pathological stage IB who were ≤ 75-year-old and underwent lobectomy were studied. The relations of clinicopathological factors were investigated by propensity score matching.ResultsThe median follow-up period was 66.0 months. The cases of AP were followed: lepidic 96, acinar 71, papillary 54, solid 45, micropapillary 3 and others 17. Adjuvant chemotherapy with UFT was performed in 70 cases (23.9%). Recurrence-free survival at 5 years (RFS) was 72.2%. Lymph vessel invasion (ly+), vascular vessel invasion (v+), pleural invasion (pl+) and non-lepidic statistically affected RFS. Multivariate analysis showed that only AP (non-lepidic) was significant (hazard ratio; HR=2.006 (1.104-3.644)). Overall survival (OS) rate at 5 years was 83.5%. ly+, v+, pl+, EGFR mutation status and AP affected OS. In multivariate analysis, only non-lepidic was left (HR=2.888 (1.231 - 6.774)). After matching AP, adjuvant chemotherapy did not have an impact on RFS or OS (p=0.992, 0.616). In lepidic, both adjuvant and non-adjuvant had excellent outcomes in RFS (84.8% and 92.9%, p=0.574) and OS (100% vs 100%, p=0.361). In non-lepidic group, adjuvant therapy tended to show slightly, but not significantly better RFS (71.5% vs, 60.6%, p=0.177). ConclusionLepidic predominant showed excellent outcomes, adjuvant chemotherapy is not necessary. For non-lepidic predominant, UFT remains standard adjuvant chemotherapy in Japan.
Customer Referencing and Capital Market Benefits: Evidence from the Cost of Equity

Customer referencing refers to the phenomenon whereby a firm discloses its connections with reputable customers in order to improve its own reputation. Consistent with this disclosure increasing investor attention and providing customer certification, we find that supplier firms enjoy a lower cost of equity when they engage in customer referencing. In cross-sectional tests, we find that the benefits of customer referencing are more pronounced for supplier firms: i) without reputable major customers, ii) whose referenced customer’s reputation greatly exceeds their own, iii) facing higher competition, or (iv) that supply a larger proportion of the referenced customer’s products. Overall, our study provides evidence that communicating inter-organizational connections to investors can bring capital market benefits to the disclosing firms.
Effects of Dietary Hot Pepper Waste Powder on Gut Health and Small Intestine Properties in Japanese Quails

12/March/2019 Approved: 23/August/2020 ABSTRACT The present study was conducted to evaluate whether dietary hot pepper waste powder (HPWP) would affect the performance and small intestine histology parameters in Japanese quail chicks. A total of 160, one-day-old Japanese quail chicks were divided into 4 treatment groups of similar mean weight, comprising 4 subgroups of 10 chicks each. Chicks were fed on their basal diet supplemented by 0, 100, 200 or 400 mg/kg of dietary HPWP for each kg of starter (0 to 10 days), grower (11 to 24 days) and finisher (25 to 42 days) diets for 7 weeks. At the end of 42 days of age, 10 birds per subgroup were slaughtered and intestinal samples were taken to evaluate histomorphological analyses. The results showed that dietary HPWP supplementation did not affect performance parameters, but 400 mg/kg HPWP supplementation tended to increase the growth performance of the chicks. The villus length, submucosa layer ( p< 0.05), serosa, muscular layer, villus-crypt length ratio, and villus surface area increased with HPWP supplementation ( p< 0.01). The goblet cell numbers of the group receiving 200 mg/kg HPWP increased compared to the control and 400 mg/kg HPWP supplementation groups ( p< 0.05). It could be concluded that dietary HPWP supplementation could improve gut
Germination and initial development of canola and radish submitted to castor leaves aqueous extracts

This study aimed to evaluate the allelopathic activity of aqueous extracts of castor bean (Ricinus communis L.) leaves on germination and initial growth of canola (Brassica napus L.) and radish (Raphanus sativus L.) seedlings. Two experiments were conducted, usingcanola seeds for the first, which was installed in a 2x7 factorial scheme (with two photoperiods – dark and light and seven extracts concentrations - 0, 1, 2, 4, 8, 16 and 32%). The second experiment consisted of an evaluation of radish seed germination submitted to seven concentrations of the extracts in the dark photoperiod. The germination of the canola seeds was reduced in the dark, and the use of extracts at concentrations of 16% and 32%inhibited seeds germination for both studied photoperiods. The radish seed germination was completely inhibited when the concentration of 32% was used, however, at the concentrations of 4, 8 and 16% a reduction on rootand hypocoyl development of the seedlings were observed, affirming the high allelopathic potential of castor bean aqueous extracts on canola and radish.
Western and complementary alternative medicine treatment of uremic pruritus: A literature review

Uremic pruritus (UP), also called chronic kidney disease-associated pruritus (CKD-aP), is a bothersome symptom that causes sleep disturbance, anxiety, depression, and reduced quality of life. Pruritus often occurs in patients with end-stage renal disease. There is still no definite treatment for UP due to its unclear pathogenesis. We searched electronic databases (PubMed and Google Scholar) and gathered the latest clinical trials and pilot studies of Western and complementary alternative medicine (CAM) therapies for UP in English. These UP studies were separated into three main groups: systemic, topical, and others and CAM. Gabapentin, nalfurafine, acupuncture, and Chinese herbal bath therapy (CHBT) show antipruritic effects, with higher evidence grades in the meta-analysis. Emollients with additive compounds are more effective for reducing itch than emollients without additives. Supplements for deficient elements, such as zinc, omega-3, and omega-6, also show benefits for pruritus improvement. CAM therapies such as acupuncture, herbs, and herbal baths or creams all have good results for UP treatment. We summarize the treatments and suggest a treatment algorithm for UP according to severity. Some UP therapies are already supported by large-scale clinical evidence, and some new treatments can provide patients with new hope and treatment options. However, these new methods still need large population studies and further exploration.
Charting Their Own Path: Using Life Course Theory to Explore the Careers of Gay Men Working in Sport

Gay men in sport are currently at a historic crossroads. On the one hand, the sport industry has never been more accepting and inclusive of sexual minorities than it is today. On the other hand, however, the sociocultural norms and organizational practices within sport that have traditionally stigmatized gay men and influenced their career choices—both in pursuit of and persistence within careers in sport—continue to exist. Drawing from life course theory, the purpose of this study was to qualitatively explore the experiences of 12 gay men working in the sport industry and understand how their awareness (or lack thereof) of the stigma associated with being gay shaped their career decisions. Findings suggest that historical/social context, organizational practices, personal and professional relationships, and the interplay between these factors inform how gay men navigate their stigmatized identities while working in sport.
Combating Osteoporosis and Obesity With Green Tea Polyphenols: Molecular Switching of Osteogenesis Versus Adipogenesis During Early Differentiation of Human Adipose Tissue-Derived Stem Cells

Background: Osteoporosis is a metabolic disease affecting the bone mineral density associated with increased adiposity in the aging population with obesity. The nutrients to control osteoblast and adipocyte differentiation from a common precursor, the pluripotent mesenchymal stem cell (MSC), may be a promising therapy for osteoporosis. Previously, we have shown that green tea polyphenols (GTP) exert anti-adipogenic effects on preadipocyte proliferation. In the present study, we investigated regulatory effects of GTP on osteogenesis and adipogenesis during early differentiation of human adipose tissue-derived stem cells (hADSCs). Methods: GTP at concentrations of 1 and 10 µg/ml was incubated with primary hADSCs in presence or absence of pioglitazone (100 µmol) during hADSCs differentiation. Adipogenesis of hADSCs was determined by Oil Red O staining and measurement of the cellular triglyceride synthesis in mature adipocyte. Alkaline phosphatase (ALP) assay and the measurement of intracellular calcium were utilized to determine osteoporosis of hADSCs. Immunofluorescence staining and qRT-PCR were employed to detect PPARγ-CEBPA regulated adipogenic pathway and the RUNX2-BMP2 mediated osteogenic pathway. Results: GTP treatment significantly decreased lipid accumulation and the cellular triglyceride synthesis in mature adipocytes and attenuated pioglitazone-induced adipogenesis in a dose-dependent manner. GTP downregulated protein and mRNA expression of Pparγ and attenuated pioglitazone-stimulated Cebpa expression in mature adipocytes. Concurrently, measurements of calcium content and ALP activity showed that GTP treatment significantly enhanced hADSCs differentiation into osteocytes compared with the control and pioglitazone-treated cells. Meanwhile, GTP upregulated protein and mRNA expression of RunX2 and Bmp2 compared to the control and GTP at 10 µg/mL significantly attenuated the decreased mRNA expression of Runx2 and Bmp2 by pioglitazone. Conclusions: The present study demonstrated that GTP possess a greater ability to facilitate osteogenesis and simultaneously inhibit hADSCs differentiation into the adipogenic lineage through upregulating the RUNX2-BMP2 mediated osteogenic pathway and suppressing PPARγ-induced signaling of adipogenesis. The findings of this study highlight that GTP may be a therapeutic intervention to combat osteoporosis associated obesity.