Miracle-dz/UniFAR-FTUs huggingface dataset:
Metals uptake by live yeast and heat-modified yeast residue

This study evaluated the biosorption of Cd 2+ , Cr 3+ , Pb 2+ and Cu 2+ at pHs 3, 4, 5 and 6 for Saccharomyces cerevisiae both alive and biologically inactivated by different heating procedures (oven, autoclave or spray dry technique originated from alcohol industry). The material inactivated by autoclave (IA, at 120°C, 30 min) had the best performance for metals uptake: 1.88 ± 0.07 (Cu 2+ ), 2.22 ± 0.02 (Cr 3+ ) and 1.57 ± 0.08 g kg -1 (Pb 2+ ). For Cd 2+ ; while the material inactivated by spray dry (RY) presented the higher sorption capacity, 2.30 ± 0.08 g kg -1 . The sorption studies showed that the biosorbent materials presented different sorption capacities and an ideal sorption pH. The sorption sites were investigated by potentiometric titration and FT-IR and showed that different heating processes used to inactivate biological samples produce materials with different characteristics and with a diverse sorption capacity due to modification of the available sorption sites. This suggests that inactivation by heating can be an alternative to improve the performance of biosorbents. The main sorption sites for each material were phenolic for live yeast (LY) and carboxylic for yeast inactivated by heating in an autoclave (IA).
Self-perception of teachers and managers of the impact of teachers’ professional development in Vietnam

DOI: 10.26907/esd15.2. 03 Abstract The professional development of teacher is an indispensable requirement for a quality education system. This has been demonstrated not only by global innovative education but also by Vietnam’s educational development trends. This study was conducted among 293 teachers and managers at high schools in Vietnam. It aims to explore the formats that teachers used to improve their professional development, the frequency of using these formats and teachers' self-assessments about their impact on professional developments. The findings revealed that high school teachers involved themselves in reading, and conducting or participating in research. Teachers expressed their view that professional development based on school's characteristics or on creating a learning community within a school had the highest impact on professional development.
Fintech Implementation on the Financial Performance of Rural Credit Banks

This study aims to determine whether the enactment of BI regulation No.19 / 12 / PBI / 2017 by Financial Services Authority (OJK) in Indonesia has an impact on the performance of banks, especially rural banks (RCB). This’s because RCB are still bound by OJK regulations in lending with a loan mechanism requirements that are quite burdensome customers. The population used in this study is the RCB in Banten Province that registered by OJK for 2014 - 2018, the sampling method used is non probability sampling, the data analysis technique uses Comparative Analysis with descriptive quantitative approach, with the help of eview . 9. the results are that for the year prior to the enactment of Bank of Indonesia regulation No. 19/12 / PBI / 2017 the variable lending and capital raising has a significant negative effect on the quality of productive assets, while for the Funding variable has no effect.
Effect of Asphaltene Dispersants on Aggregate Size Distribution and Growth

A crude oil system can become unstable because of changes in hydrocarbon composition, pressure, or temperature during normal production from the reservoir or during commingling with dissimilar crude oils. These changes can generate asphaltene particles that can result in significant production and refining problems. The generation of these particles is a two-step process: phase separation and asphaltene particle growth. Phase separation occurs when nanosize asphaltene particles from the crude oil precipitate and grow into large aggregates. Our study on asphaltene precipitation shows that large asphaltene particles are aggregates consisting of very small (sub-micrometer) size asphaltene particles. One mechanism to control asphaltenes is to kinetically inhibit the phase separation of asphaltenes by adding a small amount of a chemical that interferes with the phase separation processes. Another mechanism to control asphaltenes is to inhibit growth by stabilizing the colloidal suspension of the sub-micrometer.
MONITORING WATER INTAKES OF EL-GEDIA AND EDFINA DRINKING WATER PLANTS AS A RESULT OF ROSETTA BRANCH POLLUTION CASE STUDY EDKU-ROSETTA

River Nile is the most important and principal source of fresh water for Egyptians. Rosetta branch supplies fresh water for the governorates of Western Delta (Giza, Qaliubia, Menofia, Kafr El-Sheikh, Beheira and Alexandria). Rosetta branch receives organic, in-organic pollution and heavy metals through the discharge of municipal sewage and industrial effluents in Elrahawy drain water which is pumped to Rosetta branch. The aim of this work is to investigate pollution loads in Rosetta branch in the path (212-230km); a Case Study (EdkuRosetta) with special reference to chemical parameters. Water samples were collected monthly during the period from June 2015 to May 2016. Samples from water intakes from Edfina and El-Gedia water drinking plant were collected. Results showed that COD and ammonia recorded 22.0-38.0 ppm and 2.5-4.0 ppm respectively. Also, total nitrogen varied from 5.1-7.1 ppm. The results were out of the permissible levels according to the Egyptian Ministry of Health and the International Standards. It can be concluded that Rosetta branch suffers from pollution loads that should be investigated periodically and controlled.
Dicyandiamidabbau in Quarzsand und Böden

Es wurden Versuche zum Abbau von Dicyandiamid in Gegenwart von Metalloxiden in Quarzsand und Boden unter verschiedenen Feuchtigkeitsbedingungen durchgefuhrt mit folgenden Ergebnissen: 1. Dicyandiamid blieb in Quarzsand ohne Metalloxidzusatz uber 100 Tage hinweg unverandert. 2. In Gegenwart von amorphem Eisen(III)-hydroxid wurden nach 5 Tagen ca. 50% und nach 40 Tagen ca. 90% des vorgelegten Dicyandiamids in Guanylharnstoff uberfuhrt. Die Umsatzrate war je nach Metalloxid unterschiedlich und bei relativ geringer Feuchtigkeit am hochsten. Weitere Metaboliten wurden nicht nachgewiesen. 3. In zwei verschiedenen Boden erfolgte der Dicyandiamidabbau ebenfalls zu Guanylharnstoff, jedoch wesentlich langsamer und weitergehend bis zum Ammonium. Etwa 20–70% der zugegebenen Menge war nach 100 Tagen abgebaut. 4. Je feuchter der Boden war, umso langsamer erfolgten der Abbau des Dicyandiamids, umso schneller aber der des Guanylharnstoffs und die Bildung von Ammonium. 5. In Gegenwart von Dicyandiamid war keine Nitratbildung festzustellen. Breakdown of Dicyandiamide in quartz sand and soils Under different moisture conditions the breakdown of dicyandiamide (DCD) was investigated in quartz sand with metal oxides and in soils. 1. In quartz sand without metal oxides DCD did not change over 100 days. 2. In the presence of amorphous Fe(III)-hydroxide DCD was transformed to guanylurea after 5 days to 50% and after 40 days to 90%. The transformation rate depended on the kind of metal oxides and increased with low humidity. Other metabolites were not detected in quartz sand medium. 3. In two soils (pH 6.5, 6.3; sandy silty loam and sand) the breakdown of DCD to guanylurea followed the same pattern, but continued to ammonium. About 20–70% of the added amount was transformed within 100 days. 4. With increasing soil moisture the transformation of DCD to guanylurea was slower, but the further breakdown to ammonium increased. 5. As long as DCD was present the formation of nitrate was blocked.
Monte carlo simulation of a probability screen

The interaction of a probability screen with spherical particles was simulated in a computer model. Repeated runs were made using randomly selected, slightly differing initial conditions, from which the penetration probability was obtained at a particular particle size under given screen operating conditions. The calculations were then repeated with differing particle sizes and operating conditions, and the results were found to compare favourably with experimental data obtained in a previous study. It was shown that the stochastic model correctly predicts the effects of the principal operating variables (screen angle of inclination and aperture size, frequency and amplitude of vibration). Because of excessive computer time requirements of this model a second, semi-empirical non-stochastic model was developed whose results closely match those of the earlier model. The second model is suitable for incorporation into a plant simulation computer package. On a simule par ordinateur l'interaction d'un ecran de probabilite avec des particules spheriques. Des essais successifs ont ete effectues avec des conditions initiales selectionnees de maniere aleatoire mais quasi semblables, a partir desquels la probabilite de penetration fut obtenue a une certaines taille de particules pour des conditions de fonctionnement de l'ecran donnees. Les calculs ont ete ensuite repetes avec differentes tallies de particules et conditions operatoires, et on a trouve que les resultats se comparent favorablement aux donnees experimentales obtenues lors d'une etude anterieure. On a montre que le modele stochastique predit correctement les effets des variables operatoires principales (angle d'inclinaison de l'ecran et dimension d'ouverture, frequence et amplitude de vibration). Un second modele non stochastique, semi-empirique, a ete developpe en raison des besoins excessifs en temps de calcul, dont les resultats se rapprochent etroitement du premier modele. Le deuxieme modele peut ětre incorpore dans un modele de calcul de simulation d'installation.
Rate equation approaches to thin film nucleation kinetics

Abstract The nucleation and growth of crystals on a substrate are discussed in terms of rate equations for the atom cluster concentrations as a function of time. Simple approximations allow this general set of equations to be reduced to three coupled equations. Many physical processes can be incorporated into these rate equations, including coalescence of clusters, and cluster mobility. The problem of increasing correlation between single atoms and stable clusters as growth proceeds is studied. It is shown that the problem can be solved self-consistently using an auxiliary diffusion equation and that approximations may be obtained which give upper and lower bounds for the cluster growth rates. These diffusion equations also give expressions which enable the cluster-cluster correlations and cluster size distributions to be discussed. With these approximations, expressions are derived for observable quantities and the expressions are compared with one experimental example. In this case, that of gold on alka.
HYDRODYNAMICS OF VIBRO-FLUIDIZED BEDS

ABSTRACT Vibro-fluidized bed dryers are being extensively used in the industry to dry granular particles of wide particle size distribution. For drying applications of limited air inlet temperature and hard to dry granules--high diffusion resistance of moisture inside the qranules--baffles are normally provided in these dryers to increase the residence time of particles. The residence time distribution of granules in vibro-fluidized bed dryers is of high importance to successfully model such dryers. There has been some studies reported in the literature for average residence time of granules in vibro-fluidized beds without baffles, but there has been no work reported for average residence time in vibro-fluidized beds with baffles and residence time distribution for beds with or without baffles. Experimental runs were carried out in this study in the 0.93 m2 (10 ft2 ) pilot plant vibro-fluidized bed dryer with baffles to determine the residence time distribution of dry granules and granule height profile t.
Effect of harvest time on the leaf and essential oil yield of Eucalyptus camaldulensis.

ABSTRACT The effect of time of harvest on the yield of leaves, leaf oil concentration and quality (1,8-cineole percentage), and the total production of essential oil by physiological age class of leaves was assessed in a six-year-old plantation of Petford Eucalyptus camaldulensis over a 12-month period in central Thailand. Leaf dry matter yield (as would be obtained at clear felling) averaged 2.22 tons/ha with a range of 1.41 to 2.62 tons. The proportion of leaves by physiological age class did not vary during the study: 43% were assessed as fully expanded but not fully lignified (Class 1), 31% were fully expanded and lignified (Class 2), 13% were classed as aged leaves (Class 3) and 13% as still expanding (Class 4). Oil concentration (W/W%, DW) and 1,8-cineole percentages were mainly highest in Class 1 leaves (2.6% WAV of 75% 1,8-cineole), and lowest in Class 3 (2.1% WAV of 69% 1,8-cineole) with Class 2 leaves in between (2.3% WAV of 73 % 1,8-cineole). Class 4 leaves were not assessed. Total oil yield fr.
Connections to Cognition: Early White Matter Development and Outcomes in Children Born Very Preterm

Children born very preterm (VPT) at <32 weeks’ gestational age are vulnerable to disrupted brain maturation and compromised cognitive abilities. The present thesis investigated the first six years of life in children born VPT, which involves dynamic brain growth and developmental milestones, a foundational period for later cognitive abilities. Using diffusion neuroimaging and cognitive measures of outcome, the first objective was to characterize longitudinal white matter maturation over the first four years of life in the children born VPT and explore associations between white matter changes during the preterm period with four-year outcomes (Study1). Subsequent objectives were to compare white matter microstructural properties at four and six years of age and investigate their links with outcomes (Study 2 and Study 3). Whole brain white matter was examined with diffusion tensor imaging metrics including fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity (AD) across studies as well as neurite orientation dispersion and density imaging metrics including neurite orientation dispersion index (ODI) and neurite density (ND) in the third study. Study 1 characterized growth trajectories of individual white matter tracts, demonstrating the greatest age-related changes in the first two years of life. Slower MD and RD rates of change within the external and internal capsule during the preterm period were associated with lower IQ and language scores. Study 2
Mechanism of Potassium Alleviation of Manganese Phytotoxicity in Barley

ABSTRACT Manganese (Mn) toxicity and potassium (K) deficiency are the major factors that limit plant growth and development in acid soils. The objective of this study was to assess the role of high K on the alleviation of Mn toxicity in barley (Hordeum vulgare L. cv. ‘Minorimugi’) grown in a phytotron for 14 d. Modified half-strength Hoagland-Arnon solution (pH 5.5) was used as the medium. The treatments were (1) 0.25 μ M Mn + 3 mM K (control); (2) 25 μ M Mn + 3 mM K (Mn-toxic); and (3) 25 μ M Mn + 30 mM K (K-alleviated). The Mn-toxic plants showed the symptoms of Mn toxicity and mild iron (Fe) deficiency, whereas in the K-alleviated plants such symptoms were absent. The K-alleviated plants had dry weight, chlorophyll content, and Fe concentration similar to that in the control plants, indicating that high K (30 mM) in the growth medium could alleviate Mn toxicity and Mn-induced Fe deficiency. Roots of plants fed separately with 54Mn and 59Fe in the presence of 3.0 and 30 mM K for 4 h were also studied. Results showed that high K could help in avoiding the accumulation of 54Mn, indicating that K plays an antagonistic role on Mn absorption by roots of barley and its subsequent translocation to the shoots. However, the absorption of 59Fe was not influenced by the high K concentration in a short-term experiment (4 h), indicating that high K does not affect short-term Fe absorption by the roots of barley plants. These results suggested that the alleviating effect of high K could be attributed to the antagonistic effect of K on Mn absorption by roots and translocation into shoots.
THEORETICAL CALCULATION OF ELECTRON MOBILITY IN HGCDTE

The low field electron mobility in n-type HgCdTe is calculated by using the relaxation time approximation method. Scattering mechanisms considered in the analysis are ionized impurity, electron–hole, alloy, and polar optical-phonon (two types) scatterings. The calculation also retains band-structure effects such as nonparabolic conduction band, electron wave function admixture, and velocity degradation as the electron energy increases. Furthermore, degeneracy is incorporated without approximation. For polar optical-phonon momentum relaxation time, we employ a model that can be applicable at low temperature, when the thermal energy is lower than the optical-phonon energy. The calculation results for drift mobility are in good agreement with the Monte Carlo results. The effects of donor level, compensation, and ionicity of impurity on Hall mobility are also presented.
Electrochemical Characterization of Cellulose Acetate Membranes. 2. Influence of Casting Conditions and of Thermal Curing of CA-Membranes on the EMF of Concentration Cells with HCl, LiCl, NaCl and KCl Solutions

Cellulose acetate membranes (2.5 acetyl groups per glucose unit) have been cast from acetone solutions, from acetone/formamide solutions and from acetone/water solutions with and without complete evaporation before swelling and with or without thermal curing. Then, the membranes have been characterized electrochemically by EMF-measurements. EMF measurements on dense cellulose acetate membranes (with complete evaporation) are repeatable to within + 5 mV, and all the conclusions drawn earlier from measurements on a single membrane specimen are generally valid for dense membranes. The variation of the parameters with the cation (Li-f, Na+ or K + ) found at pH(conc) = 5 is even more consistent than found earlier, since the pH was fixed exactly by dilution and not measured by a glass electrode. Predictions of EMF-values for mixtures of three electrolytes (LiCI, NaCl and HCI) are in aggreement with experimental values. With complete evaporation, the asymmetry may be kept below +1 mV for the dense membranes. The asymmetric membranes (incomplete evaporation) have a considerably larger EMF asymmetry (up to ± 7 mV), but the model used for dense membranes work well on the mean values. The asymmetric membranes are more swelled. Accordingly, a smaller value of the fixed charge density is found, and the ratios of diffusion coefficients are close to values in pure water. Except for the asymmetry, the skin layer does not seem to be of importance for the mean EMF-values of the membranes. Heat curing has no influence on EMF-values.
Controlled release of insecticide carbaryl from sodium alginate, sodium alginate/gelatin, and sodium alginate/sodium carboxymethyl cellulose blend beads crosslinked with glutaraldehyde

Interpenetrating network polymeric beads of sodium alginate (NaAlg) and its blend with gelatin (gels) or sodium carboxymethyl cellulose (NaCMC) have been prepared by crosslinking with a common crosslinking agent, glutaraldehyde (GA), for the release of insecticide carbaryl (Carb). The prepared beads were characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. Scanning electron microscopy confirmed the spherical nature and surface morphology of the particles. Bead characteristics, such as carbaryl entrapment efficiency, particle size, equilibrium swelling degree, and carbaryl release kinetics, were determined. The effects of the preparation conditions, such as Carb/NaAlg ratio, time of exposure to GA, blend ratio, and temperature of release medium on the carbaryl release, were investigated for 25 days at 25°C. It was observed that the carbaryl release decreased with increase in crosslinking of network, while it increased with increase in Carb/NaAlg ratio and temperature. The release of carbaryl also increased with increase in Gel or NaCMC content in the blend beads. The highest carbaryl release was found to be 100%, for the beads that were prepared with 1 : 1 NaAlg/Gel at 16 days. The diffusion coefficients have been calculated for the transport of insecticide through the polymeric beads, using initial time approximation method. These values were also consistent with the carbaryl release data. The carbaryl release from most of the bead formulations followed the Fickian trend. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 1310–1319, 2006
Investigation the Role of New Technologies in Coping with Natural Disasters

INTRODUCTION: The occurrence of natural disasters leads to economic, social, and personal infrastructure damage. Moreover, the government capacities increase rapidly following a direct and major demand for assistance. In these situations, timely communication, information gathering, and coordination to respond to the needs are of critical importance. Therefore, this study aimed to evaluate the effect of new technologies on dealing with natural disasters in Sistan and Baluchistan Province, Iran. METHODS: This practical study was conducted based on a descriptive-survey method. The population included 100 experts and key members of the Sistan and Baluchistan Crisis Management Coordination Council. In total 80 cases were selected using Cochranchr('39')s formula and purposive (snowball) sampling method. The data were collected through a 46-item researcher-made questionnaire. The face and content validity of the questionnaire was confirmed by experts, and the reliability of the questionnaire was estimated at 0.94 using Cronbachchr('39')s alpha coefficient, which indicated acceptable reliability of this scale. The data were analyzed in SPSS software (version 22) through multiple regression to evaluate the research hypotheses. FINDINGS: According to the results of the Kolmogorov-Smirnov test, the data distribution was normal. Moreover, the results of the multiple regression test showed the effectiveness of new technologies in dealing with natural disasters. Furthermore, operational equipment had the most significant effects on dealing with natural disasters. CONCLUSION: New information technologies play a significant role in crisis and disaster management. Therefore, they can be beneficial in terms of informing and reducing costs as well as losses during crises and unexpected events
Analgesic and anti-inflammatory activities of the hydroalcoholic extract from Gloriosa superba Linn

Gloriosa supberba (family: Liliaceae) is widely used as a medicinal plant, and the alkaloids from the plant (Colchicines and Gloriosine)are used in the treatment of gout and rheumatism. We evaluated the analgesic and anti-inflammatory activities of hydroalcoholic extract (50% v/v) of dried aerial parts of G. superba. The analgesic activity of the extract was evaluated by using Eddy’s hot plate method and acetic acid-induced writhing method. The anti-inflammatory activity was evaluated by using the cotton wool granuloma model and the carrageenan-induced paw edema model. The percentage inhibitions of writhes or percentage protection were found to be 64.09%, 78.56% and 81.45% for extract at a dose 100, 200 and 400 mg/kg body weight, respectively, in the acetic acid-induced writhing method (P <0.01) when compared with control. The percentage increase in reaction time at 90 minutes were 21.02%, 79.96% and 158.05% for extract at a dose of 100, 200 and 400 mg/kg body weight, respectively, in Eddy’s hot plate method (P <0.01) when compared with control. The percentage inhibition of paw edema was increased with time and gave maximum effect at 2 hours, then declined in case of standard extract 400 mg/kg body weight. Only the 200 and 400 mg/kg body weight extracts exhibited significant result (P <0.05) when compared with control. The rats exhibited 9.59%, 28.72% and 45.8% inhibition of granuloma mass formation after the 7 days treatment with 100, 200 and 400 mg/kg body weight of extract when compared with control (P <0.05) in cotton pellet granuloma. Key words: Gloriosa supberba, analgesic activity, anti-inflammatory activity