Miracle-dz/UniFAR-FTUs huggingface dataset:
Transport Properties and High Thermopower of SnSe2: A Full Ab-Initio Investigation

Motivated by the observation that many known layered chalcogenides show promising thermoelectric properties, we investigate the similar properties of SnSe2 by solving the Boltzmann transport equation for both lattice and electron. A self-consistent single parabolic band model (SPB) is employed to compute the electron relaxation time rigorously. The obtained intrinsic lattice thermal conductivities in a and c directions are 6.78 and 0.79 W/m·K at 300 K. The results show that acoustic phonon branches play the dominant role in heat transport. Thermoelectric properties of n-type SnSe2 are found to be significantly better than those of p-type doping for temperatures between 200 and 800 K and carrier concentrations between 1017 and 1020 cm–3. At n = 1020 cm–3 and 300 K, we find σa = 4.97 × 105 Ω–1·m–1 and σc = 3.39 × 104 Ω–1·m–1 and the ratio σa/σc = 14.67 for n-type SnSe2. Both electrical and lattice thermal conductivities show a strong anisotropic feature. A high thermoelectric figure of merit is revealed in .
MATHEMATICAL MODELING OF DIFFERENT DRYING METHODS OF DRIED OKRO SLICE

Drying is an essential process that is used in preserving okro sample. This study investigates the modelling of dried okro slice using different drying methods. Freshly harvested okro fruits were cut transversely into slices (0.5, 1.5 and 2.0 cm) and dried using three different drying methods; sun, solar and oven at 40, 45 and 50 ºC. Drying of okro occurred in the falling rate period. Newton, Pabis, and Page and Henderson models were used to describe the drying of okro. An appropriate model was selected based on highest R2, least values of X2, Root Mean Square Error (RMSE) and Mean Biased Error (MBE). Page model described the drying behaviour of okro slice 0.5 cm satisfactorily having the highest R2 of 0.999 and lowest value of X2 (0.152 x10-8), RMSE (4.5 x10-6) and that of MBE (-3.089 x10-4).
Determination of Trace Elements in Cow's Milk in Saudi Arabia

Milk and its products are very common in our food list due to its nutrient value, since it is a source of some vitamins and a lot of mineral constituents which are necessary for proper development and functioning of different tissues and organs. However, overdose of these vitamins and mineral constituents can be harmful. This study was directed to measure the concentrations of Zinc (Zn), Cadmium (Cd), Chromium (Cr), Copper (Cu) and Lead (Pb) in cow's milk samples available commercially in Saudi Arabia using Graphite Furnace Atomic Absorption Spectrometer. Two types of milk samples were analyzed. These were - fresh cow's milk and liquid milk prepared from cow's milk powder. The mean elemental concentration values in ppb of Cr, Cu, Zn, Cd, and Pb in fresh cow's milk were : (31.4 ± 0.4), (48.9 ± 0.6), (944.9 ± 2.4), (4.7 ± 0.2) and (3.5 ± 0.2) respectively. Those in cow's milk powder were : (20.6 ± 0.8), (36.9 ± 1.1), (956.8 ± 3.2), (3.1 ± 0.3), and (2.2 ± 0.2) respectively. These values are compared with Recommended Dietary Allowance (RDA) values and also with the corresponding values of different countries available in the literature.
Physicochemical and phytochemical investigation of different fractions fromhydroalcoholic extract of Tectona grandis (Linn) barks

The objective of the present work is to carry out the physicochemical investigation of powder drug and phytochemical screening of different fractions obtained from hydroalcoholic extract of Tectona grandis (Linn) barks. Physicochemical analysis was done to determining total ash, acid insoluble ash, water soluble ash, sulphated ash, extractive value, moisture content, crude fibre content and foaming index. The inorganic elements determination and fluorescence analysis was performed as per the standard methods. Phytochemical investigations were carried out on different fraction to determine various active constituents present in it by using standard preliminary phytochemical tests. The inorganic element, such as calcium, magnesium, sodium, potassium, iron, copper, zinc and manganese were found in the hydroalcoholic extract of barks. Florescence analysis of the fractions were reported which gives the sensitivity of the chemical in different chemical reagents. Preliminary phytochemical screening of different fractions of hydroalcoholic extract showed the presence of the phytoconstituents like alkaloids, glycoside, proteins and amino acid, carbohydrates, flavonoids, terpenoids, tannins, saponins and sterols. However the volatile oil, fixed oil and mucilage were found to be absent. The physiochemical examination of the barks of Tectona grandis Linn (Saguan) can be used as rapid, inexpensive botanical identification and standardization. The phytochemical data obtained from the results of the Tectona grandis fractions may be useful for further pharmacological evaluation.
Osmotic Dehydration Kinetics of Aonla Slices Cv. Chakaiya

The present work aimed to study kinetics of osmotic dehydration of Chakaiya variety of aonla to remove partial moisture prior to mechanical drying by employing sugar syrup solution (50, 60 and 70 o Brix) at sugar syrup temperatures (40, 50 and 60 ⁰ C) and immersion time (15, 30, 60, 90, 120, 180 and 240 min) maintaining constant solution to fruit ratio of 6:1 (v/w). The effects of syrup concentration, syrup temperature and immersion time on water loss and sugar gain were observed. It was found that water loss and sugar gain both were increased non-linearly with syrup concentration, temperature and immersion time and foun d in the range of 15.65 to 62.28 and 3.69 to 18.14 %, respectively. Among the seven existing mathematical models tried, the logarithmic model was found adequate to describe the water loss for all the temperature-concentration combinations except treatment of 60 ⁰C-70 ⁰B for which power model was found adequate based on regression diagnostic criteria. For sugar gain, cubic model was found best fit for 40 ⁰C-60 and 70 ⁰B, 50 ⁰C-50, 60 and 70 ⁰B and for 60 ⁰C- 70 ⁰B and quadratic model was found best fit for 40 ⁰C-50 ⁰B, 60 ⁰C-50 and 60 ⁰B temperature-concentration combinations. The developed models can be used for predicting water loss and sugar gain during osmotic dehydration of aonla slices within the range of experimental study.
Comparative Analysis of Porosity Estimates in a Sandstone Reservoir: The Niger Delta as Case Study

Sonic logs and density logs – derived porosities was estimated from two different reservoirs in a single well and comparatively analyzed in this study. The well log is taken from an oil field in the Niger Delta. The study is aimed at identifying a more statistically dependable method, relative to the methods described herewith, in estimating porosity values in the Niger Delta Basin. The well was logged for Transit times, bulk density of the formation and porosity from core analysis as a function of depth. Measures of normalized root mean square error (NRMSE), relative to porosities measured from core analysis at the reservoir intervals, and coefficient of variation were employed in determining which of the estimates were more reliable. For RESERVOIR I, the NRMSE for sonic logs-derived porosites and density logs – derived porosities were 17.96% and 18.68% respectively. For RESERVOIR II, the NRMSE for sonic logs-derived porosites and density logs – derived porosities were 17.35% and 19.29% respectively. Further analysis showed that the coefficient of variation for sonic logs-derived porosites and density logs – derived porosities in the first reservoir were 13.90% and 21.80% respectively, while they were 10.18% and 21.59%, respectively, in the second reservoir. Hence, the sonic log-derived porosities were considered to be a more reliable measure of porosity in the reservoirs of the Niger delta as it had a lower measure of NRMSE and coefficient of variation in the reservoirs of interest. The results obtained therefore, shows that sonic logging tool instead of density logging tool, gives a more reliable porosity value of a formation in the Niger Delta.
MHD Flow with Hall current and Joule Heating Effects over an Exponentially Stretching Sheet

Abstract The aim of the present paper is to study the influence of Hall current and Joule heating on flow, heat and mass transfer over an exponentially stretching sheet in a viscous fluid. Using similarity transformations the governing nonlinear coupled equations are converted into ordinary differential equations. These equations are linearized using the successive linearization method and then solved using the Chebyshev pseudo spectral method. The influence of magnetic parameter, Hall parameter, suction/injection parameter and slip parameter on the physical quantities are presented graphically. The obtained results are compared with the previously published results for special cases.
The Attribution of Intentionality in Relation to Culture and Self

OF THE DISSERTATION The Attribution of Intentionality in Relation to Culture and Self by Gangaw Zaw Doctor of Philosophy, Graduate Program in Psychology Loma Linda University, June 2006 Dr. Hector Betancourt, Chairperson The attribution of intentionality has received significant attention in the social cognition literature (Malle, 1999). Perceiving the intentions of others has several implications for how individuals judge and respond to others' behaviors in various social situations. The current study examined factors that predict attributions of intentionality. Studies by Jones and Davis (1965) have indicated the role of culture is involved in perceptions of intentionality. In addition, studies in philosophy have implicated the self as influential in the perception of intentionality. The self is also a product of culture and cultural value orientations (e.g. individualism and collectivism). Markus and Kitayama (1991) identified two construals of the self (e.g. independent and interdependent) that are influenced by culture. The current study examined how cultural value orientations of individualism and collectivism and related beliefs about the self may influence the attribution of intentionality. A Structural Equation model was proposed to explain the hypothesized relations among the variables in a conflict situation. Specifically, it was expected the cultural value orientations would be directly related to the perception intentionality, and indirectly through the construal of the self. The model testing the hypothesized and theoretically based relations among the variables was confirmed, x2(24, 224)— 74.13,p= . 00, CFI = . 95, RMSEA= . 10. The initial results indicated collectivism and individualism influenced the interdependent and independent construal of the self, respectively; however, these variables did not predict the attribution of intentionality. Additional models tested showed that a model incorporating locus of control and controllability improved the fit of the original model, x2 (69, 224)= 125.03,p= . 00, (CFI) = . 95, RMSEA= . 06. These results demonstrated that cultural value. orientation and the construal of the self indirectly influenced the perception of intentionality through the locus and controllability.
Processing of marula (Sclerocarya birrea subsp. Caffra) fruits : a case study on health-promoting compounds in marula pulp

Marula is a multipurpose tree from Southern Africa, used by local people for its fruit, and cosmetic oil from the seed and for medicinal products from the bark and leaves. Fruits are eaten raw, or used to prepare juices, jams, conserves, dry fruit rolls, or fermented to make alcoholic beverages like beer, wine and Amarula. The fruit is a vital source of vitamin C for rural people most of whom cannot afford other more expensive sources of vitamin C. The specific processing methods and conditions of making marula juice vary among different regions. This thesis investigated the fate of antioxidants, i.e. vitamin C, and their activities due to heat processing and fermentation of the marula pulps and its juices. The results showed that marula fruit pulp has a vitamin C content higher than that of most fruits, ranging from 62 mg/100 g fresh weight– to over 400 mg/100 g. Juice production was optimized by an experimental design combined with response surface modelling: adding pectinase (in the range of 0.1 to 0.14%) increased the yield of marula juice by 23%. The optimal extraction temperature for the content of vitamin C and polyphenols as well as for the antioxidant activity ranged between 40 and 60°C. At heating temperatures below 125oC, ascorbic acid in marula pulp was about 15-fold more stable than in mango and guava pulp. The results further revealed that marula peel contained more volatile compounds (75) including all the identified volatiles (41) of the flesh. Marula fruit is a rich source of vitamin C and other antioxidants. The use of unfermented juice should be encouraged since it can contribute to the energy intake of the marula juice drinkers. Marula juice is a rich source of natural antioxidants. In addition, marula processors are advised to incorporate (part of) the skin in products such as juices, jams, jellies and alcoholic beverages during processing to enhance the unique characteristic marula flavor in the products which are currently claimed not to have a strong marula like flavour.
Evolution of Iodoplumbate Complexes in Methylammonium Lead Iodide Perovskite Precursor Solutions

Here we investigate the local structure present in single-step precursor solutions of methylammonium lead iodide (MAPbI3) perovskite as a function of organic and inorganic precursor ratio, as well as with hydriodic acid (HI), using X-ray absorption spectroscopy. An excess of organic precursor as well as the use of HI as a processing additive has been shown to lead to the formation of smooth, continuous, pinhole free MAPbI3 films, whereas films produced from precursor solutions containing molar equivalents of methylammonium iodide (MAI) and PbI2 lead to the formation of a discontinuous, needlelike morphology. We now show that as the amount of excess MAI in the precursor solution is increased, the iodide coordination of iodoplumbate complexes present in solution increases. The use of HI results in a similar increase in iodide coordination. We therefore offer insight into how solution chemistry can be used to control MAPbI3 thin film morphology by revealing a strong correlation between the lead coordination .
Effects of alkali and ammonium ions in the detection of poly(ethyleneglycol) by alpha-hemolysin nanopore sensor

Nanopores have emerged as molecule detectors and more studies are necessary to clarify the analyte–nanopore interaction. Here, we report the influence of cations of the Hofmeister series on a simple bimolecular complexation reaction between poly(ethyleneglycol) (PEG) and α-hemolysin (αHL) nanopore at the single-molecule level. The kinetic constants (on-rate and off-rate) of interaction of PEG molecules with αHL nanopore depend strongly on the type of cation. In the case of on-rate constant, the difference reaches several dozen times. As a consequence of this, both transition rate and detection limit of the nanopore-based sensor were changed. An inverse relationship was demonstrated for the off-rate constant and the solubility of PEG. Except lithium, the other alkali metal cations significantly affect the interaction of PEG with the nanopore and, similarly to potassium, they also bind to this polymer. Thus, the PEG/αHL nanopore interaction can be strongly influenced by the type of cation. The cation-induced specific effect on polymer detection with a single αHL nanopore appears to occur by competition of the cation and PEG by water. Finally, our results represent a guide to select the appropriate physicochemical conditions that enhance the analyte–nanopore interaction, thereby improving the sensitivity of nanopore-based sensors.
Vinegar production trial from cashew apple (Anacardium occidentale) using thermotolerant Acetobacter strains with high acetic acid yield in non-optimized small scale conditions

N’GUESSAN et al 2020 Vinegar production trial from cashew apple (Anacardium occidentale) using thermotolerant Acetobacter strains with high acetic acid yield in non-optimized small scale conditions Yevi Delphine N’GUESSAN, Eric Essoh AKPA, lamine SAMAGACI, Hadja OUATTARA, Essoma Edwige AKOA, Sebastien Lamine AHONZO-NIAMKE Laboratoire de Biotechnologie, Agriculture et Valorisation des Ressources Biologiques, Unité de Biotechnologie, UFR Biosciences, Université Felix HOUPHOUET-BOIGNY Abidjan, 22 bp 582 Abidjan, Cote d’Ivoire
Computational Study on Reduction Potential of [CoP4N2(OH2)2]2+ as a Super-Efficient Catalyst in Electrochemical Hydrogen Evolution

Hydrogen is considered as a unique choice for future world’s resources. The important parameter in the process of hydrogen production is the value of reduction potential for the used catalyst, in direct contact with consumed energy in process. The application of computational methods to design and modify molecular catalysts is highly regarded. This study sought to explore Density Functional Theory (DFT), employing an effective core potential basis set (LanL2DZ) for metals, as an applicable method used to calculate molecular geometries and electronic structures of the redox forms of two new super-efficient catalysts, CoP4N2 and FeP4N2. The reduction potential related to CoP4N2 catalyst in the presence of water solvent is measured using a reference isodesmic reaction. The calculated data revealed that obtained theoretical value for the reduction potential of catalyst, -0.58V, is in an excellent agreement with its experimental value, -0.50 V. The results confirmed that water molecules coordinated with Co or Fe core in catalyst structure play the main role in H2 gas production.
What Factors that Cause the High Numbers of Unwanted Pregnancy in Indonesia

In the world, more than 120 million couples unmeet the need for contraception in one year. About 80 million of these have had unwanted pregnancies. Some of the impacts caused include abortion, pregnancy complications, and infection. Indonesia is one of the countries with many Unwanted Pregnancy cases that are still stagnant at 15.7% in 2019 with the target of reducing unmet need that has not been achieved. The purpose of this study was to analyze what factors influenced the incidence of Unwanted Pregnancy in Indonesia in the 2019 period. The data used comes from the 2019 Population, Family Planning and Family Development Performance and Accountability Survey Program (SKAP) with 46.220 married women aged between 15-49 years who became the unit of analysis. The data were processed using SPSS 21 using multiple logistic regression test with a significance value
Complete sequence of a eDNA ofsubunit of soybean p-conglyeinin 197

In soybean two classes of multi-subunit seed storage proteins, fl-conglycinin and glycinin, together constitute approximately 70~o of the total seed storage protein at maturity [ 13]. fl-conglycinin is formed by the assembly of various combinations of three subunits, ~', ~ and fl, which have molecular weights of 76, 72 and 53 kDa, respectively. Each of these subunits are synthesized as precursors which undergo coand posttranslational modifications along the sorting pathway to the protein bodies [ 15]. A full-length eDNA clone, pGmc76, encoding the 0~ subunit isolated from a eDNA library as previously described [16] was sequenced. The eDNA consists of 1971 bp with one long open reading frame sufficient to encode a protein of 605 amino acids with a molecular weight of 70 382 Da. It is preceded at its 5' end by a poly(A) tract as a consequence of the cloning procedure. The 3'-flanking region contains a double polyadenylation signal (AATAAATAAA) 90 nucleotides downstream from the stop codon (TGA) and 37 nucleotides upstream of the poly(A) tail. The sequence reported here confirms and extends the partial sequence for the soybean ~ subunit gene [ 5, 16 ]. The nucleotide sequence of pGmc76 produced by the exonuclease III method [ 11, 21 ] and the predicted amino acid sequence are shown in Fig. 1. It is predicted that the soybean ~ subunit is synthesized as a precursor molecule that requires two proteolytic cleavage reactions to produce a mature protein [2, 5, 12, 15]. The first cleavage is presumably produced by a signal peptidase activity in the endoplasmic reticulum and most probably occurs between the Ser (+ 22) and Phe ( + 23) residues, based upon the predictions of Perlman and Halvorson [14] and Von Heijne [ 19, 20]. The proposed signal peptide shows the three structurally distinct regions, the n, h and c regions, identified for signal sequences of secreted proteins. Experimental evidence that a signal peptide is lost from the ~ subunit precursor during its translation in vitro by microsomal membranes will be reported in a subsequent paper (Sebastiani et al., manuscript in preparation). The NH2 sequence of the mature ~ subunit is at Val + 63, based upon the amino acid terminal sequence analysis reported by Coates et al. [5]. The amino acid composition of the translated mature sequence of pGmc76 closely approximates the reported amino acid composition of the soybean subunit [5, 18] (data not shown). Inspection of the predicted amino acid se-
Characterization of Bacterial Copolyesters with Unsaturated Pendant Groups -Production and Thermal Properties-

Poly(3-hydroxyoctanoate-co-3-hydroxyundec-10-enoate)s, PHOUs, with various amounts of unsaturated side chains were produced by Pseudomonas oleovrans from mixtures of 10-undecenoic acid and sodium octanoate. The amount of unsaturated unit in copolymers was established by ¹HNMR analysis and the results indicate that the amount of olefin in the carbon source directly correlates with the amount of unsaturated unit in the copolymer, PHOUs. For the PHOU samples with unsaturated pendant unit, thermal properties such as the glass transition temperature(Tg), melting temperature (Tm)and heat of fusion (ΔHm) tend to decrease as the amount of unsaturated unit in the copolymer increases. The onset and maximum decomposition temperatures as measured by thermogravimetric analysis did not change significantly for the PHOUs with various unsaturation.
Study on the hydrogen bonding in the ethanol-water system by ~1H NMR

The changes in hydrogen bonding of 40% and 60% ethanol were examined by 1H nuclear magnetic resonance spectroscopy(1H NMR)within 190 days of storage.With the increase of storage time,the peaks of hydroxyl protons in both ethanol and water had gradually moved to the lower field,which indicated that the strength of hydrogen bonding in ethanol-water solution gradually increased.Compared with 40% ethanol-water system,the hydrogen bonding in 60% ethanol-water system consistently showed less strength,and peaked at a later stage.
Active Share and the Predictability of the Performance of Separate Accounts

Abstract Separate accounts are a large and unique, but understudied, part of the investment management industry. Within our sample, on net, the average separate account underperforms, but for those with high active share, we find positive performance persistence. Among high active share separate accounts, a portfolio of those with strong past performance has a subsequent net alpha of 1.38% per year (t = 2.11). That result strengthens when return dispersion is high and among separate accounts with a small cap style, a fundamental investment approach, or lower cash holdings. These results provide out-of-sample support for the predictive utility of active share.