Miracle-dz/UniFAR-FTUs huggingface dataset:
The crystal structure of barite, BaSO4, at high pressure

Abstract The structure of barite, or baryte, BaSO4, has been refined by single-crystal methods at room temperature to a maximum of 21.5 GPa in He medium. Lattice parameters have been obtained at select pressures by powder diffraction and complemented by the collection of Raman specta at the highest attained pressure. The results of all analyses correspond to BaSO4 remaining in the baritetype structure to the highest investigated pressure. Therefore, the search for transitions leading to a post-barite structure, in BaSO4, must be conducted at pressures higher than those investigated here, or, in “lower pressure” analogs
COMPARATIVE ASSESSMENT OF ANTIOXIDANT POTENTIAL OF CASSIA AURICULATA (LINN.) FLOWER, LEAF AND SEED METHANOLIC EXTRACTS

Objective: The present study aimed to investigate the antioxidant potential of the methanolic extract of flowers, leaves and seeds of Cassia auriculata (Linn.) along with the quantification of total phenolics and flavonoids content. Methods: The antioxidant activity of flowers, leaves and seeds of Cassia auriculata (Linn.) was assessed with the help of various in vitro antioxidant assay systems as 2,2-Diphenyl-1-picrylhydrazyl (DPPH) scavenging assay, reducing power assay and Nitric oxide scavenging assay. For the determination of phenolic content the Folin Ciocalteu method and for flavonoids Aluminium Chloride spectrophotometric method was adopted. Results: The flowers, leaves and seeds methanolic extracts of Cassia auriculata (Linn.) were screened for different phyto chemicals present and the major antioxidants polyphenols and flavonoids were quantified. All the extracts showed significant antioxidant activity in all assays with the same trend as in total phenolics and flavonoids content. Flowers show most antioxidant activity in all assay systems due to higher phenolics and flavonoids content. That indicated the direct correlation among antioxidant potential, total phenolics and flavonoids content. Conclusion: The result implies that the Cassia auriculata (Linn.) plant parts especially flowers can be serving as natural sources of antioxidants and could be used in the treatment of diseases that have free-radical origin and as a substitute for synthetic drugs.
Feasibility of recycled newspaper as cellulose source for regenerated cellulose membrane fabrication

An environmental friendly regenerated cellulose membrane (RCM) was successfully prepared via NaOH/urea aqueous solution system by utilizing recycled newspaper (RNP) as the cellulose source. The morphological and chemical structure of resulting membrane were characterized using scanning electron microscopy (SEM), atomic force microscopy (AFM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) spectroscopy, and thermogravimetric analysis (TGA). Results from FTIR and XRD verified that the transparent RCM possesses cellulose II structure. SEM observation revealed that the transparent RCM consist of homogeneous dense symmetric membrane structure and composed of a skin layer with mean roughness parameter Ra, obtained from AFM analysis of 29.53 nm. Pure water flux, water content, water contact angle, porosity, and pore size of the resulting membrane were also measured. This study promotes the potential of the cellulose-based membrane obtained from low cost cellulose source for application in filtration and separation system
Dietary absorption efficiencies and elimination rates of polycyclic aromatic hydrocarbons (PAHs) in rainbow trout (salmo gairdneri)

Dietary absorption efficiencies and elimination rates of acenaphthylene, 1-phenyl naphthalene, 2-methyl anthracene, 9-methyl anthracene, triphenylene, perylene, benzo[b]fluorene, dibenzo[a,h]anthracene, benzo [ghi]perylene and coronene were examined in rainbow trout. Subadult fish were exposed to 10 mg of each chemical over 5 d and polycyclic aromatic hydrocarbon (PAH) levels were monitored during the following 25 d. The results indicated that PAHs were not accumulated by trout through dietary exposure because of the combined effects of poor absorption efficiencies and rapid elimination rates. Phenyl naphthalene was more persistent than the other PAHs examined, with a half-life of 25 d.
The Influence of Capital Structure and Macroeconomic Faktor on Financial Performance and Its Implications on Firm Value.” (An Empirical Study in Textile and Textile’s Products Companies Listed in Indonesia Stock Exchange (IDX)

Textile industry and Textile Product (TPT) contributes to GDP, foreign exchange earnings and employment at the same time. Globalization which is marked by the termination of the quota system opens opportunities for open market segments. But the textile industry in Indonesia over the last ten years is known as sunset industry, the effect of this is the tendency to be difficult to gain the trust of the stakeholders concerned. This causes the decrease value of the textile companies registered in the stock exchange market which is represented by the stock price. The cause of the the low level of the company value is the company’s financial performance of the last five years which is still poor. It is related to capital structure policy issues that cannot be separated from macroeconomic factors. Referring to the problems above, this study aimed to obtain the results of a study on the influence of the capital structure and the macro-economic factor toward financial performance as well as its implications on the value of Textile Company in Indonesia Stock Exchange (BEI). Also, to get the results of the analysis of the influence among these variables. The population in this study is the Company Textile and textile products registered in the Indonesia Stock Exchange (IDX). The test results showed: the long-term capital structure and the inflation of macroeconomic factors influence positively to financial performance. Referring to the research findings, it is suggested that textile companies should always consider the capital structure and anticipate the macroeconomic factors. It is necessary to increase the roles and responsibilities of the textile industry associations in Indonesia as well as the government policy to support the textile industry development.
Achieving Hidden-terminal-free Channel Assignment in IEEE802.11-based Multi-radio Multi-channel Wireless Mesh Networks

SUMMARY Wireless Mesh Networks (WMNs) are often designed on IEEE 802.11 standards and are being widely studied due to their adaptability in practical network scenarios, where the overall performance has been improved by the use of the Multi-Radio and Multi-Channel (MRMC) con-ﬁguration. However, because of the limitation on the number of available orthogonal channels and radios on each router, the network still suﬀers from low throughput due to packet collisions. Many studies have demonstrated thattheoptimizedchannelassignmenttoradiointerfacessoastoavoidinter-ferenceamongwirelesslinksisaneﬀectivesolution. However,noexistingchannelassignmentschemecanachievehidden-terminal-freetransmission andthusavoidcommunicationperformancedegradationgiventhelimitednumberoforthogonalchannels.Inthispaper,weproposeanewstatic channelassignmentschemeCASCA(CSMA-awareStaticChannelAssign-ment)basedonaPartialMAX-SATformulationofthechannelassignment problemthatincorporatesaCSMA-awareinterferencemodel.Theevalu-ationresultsshowthatCASCAachieveshidden-terminal-freedominboth gridandrandomtopologynetworkswith3-4orthogonalchannelswithpreservationofnetworkconnectivity.Inaddition,thenetworksimulation resultsshowthatCASCApresentsgoodcommunicationperformancewithlowMAC-layercollisionrate.
Anti-Inflammatory, Antinociceptive, and Sedating Effects of Lafoensia pacari. Aqueous Extract

Abstract The acetic acid–induced abdominal writhing, the tail flick, and the croton oil–induced mouse ear edema tests were used to study the anti-inflammatory effects of the aqueous extract from Lafoensia pacari. A. St.-Hil. (Lythraceae) stem bark. Pentobarbital-induced sleeping time was used to study the central nervous system depressant effect of the extract. The aqueous extract caused a dose-dependent inhibition of acetic acid–induced abdominal writhing and ear edema formation and produced a significant (p < 0.05) dose-related increase in the duration of sleep. The results suggest that Lafoensia pacari. stem bark contains compounds with anti-inflammatory, analgesic, and central depressant actions.
Responses of Soil Respiration to Clipping and Grazing in a Tallgrass Prairie

Soil-surface CO 2 flux (F,) is an important component in prairie C budgets. Although grazing is common in grasslands, its effects on F s have not been well documented. Three clipping treatments: (i) early-season clipping (EC); (ii) full-season clipping (FC); and (iii) no clipping (NC); which represented two grazing strategies and a control, were applied to plots in a tallgrass prairie in northeastern Kansas, USA. Measurements of F s were made with a portable gas-exchange system at weekly to monthly intervals for 1 yr. Concurrent measurements of soil temperature and volumetric soil water content at 0.1 m were obtained with dual-probe heat-capacity sensors. Measurements of F, also were obtained in grazed pastures. F, ranged annually from 8.8 x 10 -3 mg m -2 s -1 during the winter to 0.51 mg m -2 s -1 during the summer, following the patterns of soil temperature and canopy growth and phenology. Clipping typically reduced F s 21 to 49% by the second day after clipping despite higher soil temperatures in clipped plots. Cumulative annual F s were 4.94, 4.04, and 4.11 kg m -2 yr - 1 in NC, EC, and FC treatments, respectively; thus, dipping reduced annual F s by 17.5%. Differences in F s between EC and FC were minimal, suggesting that different grazing strategies had little additional impact on annual F,. Daily F s in grazed pastures was 20 to 37% less than F, in ungrazed pastures. Results suggest that grazing moderates F, during the growing season by reducing canopy photosynthesis and slowing translocation of carbon to the rhizosphere.
Oil/Water‐Partitioning and Interfacial Behavior of Naphthenic Acids

Abstract Partitioning and dissociation constants for naphthenic acids from crude oils and several naphthenic acid model compounds are reported. The pK a for naphthenic acids from crude oil was found to be 4.9. The logarithm of the partition coefficients varies linearly vs. the number of carbons in the naphthenic acid molecules. The naphthenic acids with three rings were found to be more hydrophilic than acids with one or two rings. The data can be used to predict the content of different naphthenic acids in produced water at a given pH, given the acid content and mole weight distribution in the crude oil. By accounting for the dissociation in water and partitioning of undissociated acid a model for the total acid concentration in water was derived. Experiments with synthetic naphthenic acids were performed and the model proved to describe the experimental points at pH < 8. At higher pH there was a deviation between the model and the experimentally determined concentrations. This was suggested to be due to formation of ordinary and reversed micelles. The correlation between interfacial tension and pH was studied for several naphthenic acid systems. A decrease in interfacial tension was seen at high pH; this was explained by an increase in the total concentration of ionized naphthenic acids at the interface. The fraction of ionized naphthenic acids at the interface was lower than the fraction in the bulk phases. This effect is explained by the fact that interfacial pH is lower than the bulk pH due to electrical double layer effects.
Understanding Saving Habit of Individualsfor the Varied Financial MeasurementCategories using Cluster Analysis

Saving being a rational behaviour, it was observed that many people cannot deal with their finances which affect their long-term financial needs. Also, the economic growth of a nation depends on the Gross Domestic Saving (GDS) which is the saving from the private, public, and household sector. Thereby, this research aims at understanding the saving behaviour or saving habit of the individuals. For this purpose, the financial well-being survey data from the Consumer Financial Protection Bureau (CFPB) is being used. The saving behaviour is observed for the six categories of financial measurement. Initially, the attributes falling into these categories are identified using Multiple Linear Regression (MLR) and Random Forest (RF). Having known, the significant factors, clustering which is a type of unsupervised machine learning is being used to discover the factors influencing saving habit of individuals. Five types of clustering algorithm- K-means, Partitioning around Medoids (PAM), Clustering Large Applications (CLARA), Hierarchical, and Fuzzy (Fanny) are evaluated using internal validation metrics to find the optimal number of clusters, thereby, interpreting those results to analyse the saving behaviour. The internal validation metrics like connectivity, the Dunn’s index, and the Silhouette index has shown significant results for all the categories. Finally, the interpreted results reveal various factors leading to a good saving habit and they are education, income; also, the unmarried individuals, who owns a house, had no bad financial experience, and the ones who are goal-oriented have a good saving habit.
Runoff of copper and zinc caused by atmospheric corrosion

Runoff and total corrosion loss for copper and zinc were investigated at seven sites in Switzerland. The exposure sites were chosen near the stations of the National Air Pollution Monitoring Network (NABEL), where climatic and air pollution data are measured. Runoff and corrosion rates were investigated after 0.5, 1, 2 and 4 years of exposure. Runoff rates differ from corrosion rates depending on the material, the exposure time and the sampling site.
Spray Drying of Probiotics: Process Development and Scale-Up

Spray drying is an alternative method to freeze drying of Bifidobacterium bifidum biomass during the production of solid dosage forms. In order to develop a new drying process for probiotics and to establish the generalized mathematical model for the proposed technology, both experimental and theoretical studies on B. bifidum biosuspension have been carried out. These studies focused on drying kinetics, kinetics of cell death due to thermal shock and growth of osmotic pressure; on defining the influence of process parameters on product quality; and on identifying the limitations of process parameters due to material characteristics. Based on experimental data and modeling results, recommendations for organization of industrial process have been provided.
Volatile constituents of the fruit oil of Illicium griffithii Hook. f. et Thoms. from Vietnam

ABSTRACT The essential oil obtained by steam distillation of the fruit of Illicium griffithii Hook. f. et Thoms. growing wild in Vietnam was investigated by a combination of GC and GC/MS. This oil was found to contain more than 70 compounds of which α-pinene (19.4%), linalool (19.0%), limonene (13.2%) and 1,8-cineole (9.3%) were found to predominate.
Effects of low dietary aflatoxin B1 on broiler liver concentration without and with Mycosorb ® toxin binder

A pilot study was conducted to evaluate the suitability of hepatic aflatoxin (AFB1) concentration as a biomarker to assess the in vivo efficacy of a mycotoxin binder in poultry when AFB1 dietary concentrations are low. Diets containing low doses of AFB1 without or with Mycosorb ® (MTB), a mycotoxin binder, were fed to broilers from 7 to 21 days of age. The accumulation of AFB1 in liver was measured by high performance liquid chromatography with a detection limit of 5 ng/kg liver. In response to 10 and 50 µg AFB1/kg feed, hepatic AFB1 accumulation was 27 and 145 ng AFB1/kg liver, respectively. At each dietary concentration of AFB1, the inclusion of 5 g MTB/kg of feed reduced ( P P
Synthesis and spectroscopic properties of some new N,N'-disubstituted thiorueas of potential biological interest

Thirty-six new N,N'-disubstituted thioureas have been synthesized by the reaction of phenyl-, p-fluorophenyl- and benzoylisothiocyanates with various substituted anilines, aminopyridines and 4-aminoquinolines. The uv, ir and nmr spectral data are presented and discussed.
Controls on iron(III) hydroxide solubility in seawater: The influence of pH and natural organic chelators

Iron solubilities of Fe(III) hydroxide in coastal and oceanic waters and in the ultraviolet (UV)-irradiated seawaters over a pH range of 5.7-8.2 at 20°C were determined by a sim:Dle filtration (0.025 pm) involving y-activity measurement of 59Fe. At pH ranges of 5.7-7.2 (coastal water) and of 5.7-7.6 (oceanic water), only the Fe(OH),+ species is significant. The calculated solubility products, log*&,, for coastal and oceanic waters were 4.8-5.0 and 4.4-4.6, respectively. The solubilities within the pH range of 7.8-8.2 are relatively independent of pH and aging time. Solubility in the oceanic water was about one order of magnitude lower than that in the coastal water, and UV irradiation reduced solubility to 40.1 r-I solubility minima (0.15-0.2 nM) occur at a depth of 50-200 m. These results suggest that natural organic Fe(III) chelators exist in significant concentrations and control the dissolved iron concentration in seawaters.
Quaternary quantum wells for electro‐optic intensity and phase modulation at 1.3 and 1.55 μm

We demonstrate for the first time that large quantum‐confined Stark effect can be obtained in high quality InGaAsP/InP quantum well p‐i‐n heterostructures. The compositional flexibility of this material system is particularly suited for quantum well device applications in optical communications systems operating between 1.55 and 1.3 μm. We measure the magnitude of the shift of the ground‐state exciton transition with applied electric field and find that it is significantly enhanced over ternary wells. We have also determined the electro‐optic intensity and phase modulation response in these structures.
Development of fluridil, a topical suppressor of the androgen receptor in androgenetic alopecia

Nonsteroidal antiandrogens (AA) cannot be topically used for androgenetic alopecia (AGA) because of systemic resorption. A new class of androgen receptor (AR) suppressors designed for safe topical treatment of AGA was synthesized from (3‐amino‐2‐hydroxy‐2‐methyl‐N‐(4‐nitro‐3‐trifluoromethyl)phenyl) propanamide (BP‐34), to contain perfluoroalkyl moieties. The trifluoromethyl derivative (fluridil) at 10 μM decreased expression of the AR in LNCaP human cells by 95%, its serum half‐life was 6 h; it decomposes hydrolytically to BP‐34 and trifluoroacetic acid. Acute intraperitoneal maximum tolerated dose (MTD) of fluridil in mice is 270–300 mg/kg/d and the subacute MTD is 450 mg/kg/d. The oral LD50 in mice was 2,872 mg/kg in males, 2,232 mg/kg in females, and >2,500 mg/kg in rats. Fluridil solution in isopropanol was not cutaneously absorbed in rabbits, did not sensitize or show any phototoxic or photoallergic effects on guinea pig skin, and demonstrated no skin irritation potential in rabbits and humans. Fluridil solid induced only slight and reversible eye irritancy in rabbits and displayed no cytotoxicity to rabbit corneal fibroblasts in vitro. Fluridil demonstrated no significant mutagenicity potential by Ames method. In a double‐blind study, 43 males with AGA, Norwood grade II to Va, used topical 2% fluridil in isopropanol or the vehicle daily for 12 months. Anagens (growing hairs) increased in the fluridil group from 76% to 89%. All hematological and biochemistry values remained within normal range, including testosterone, which varied but seasonally. No fluridil or its decomposition product (BP‐34) was detected in serum. No adverse side effects were reported. Drug Dev. Res. 59:292–306, 2003. © 2003 Wiley‐Liss, Inc.
Comparison of the performance of direct current atmospheric pressure glow microdischarges operated between a small sized flowing liquid cathode and miniature argon or helium flow microjets

Low power direct current atmospheric glow microdischarges were sustained between miniature Ar or He flow nozzle microjets and a small-sized flowing liquid cathode as new excitation microsources for optical emission spectrometry. The morphology of emission spectra of both microdischarges was compared and the effect of the flow rate of both gases on their performance and the emission characteristic related to molecular bands and atomic lines of selected metals (Ca, Cd, Cu, Fe, K, Li, Mg, Mn, Na and Zn) were studied using optical emission spectrometry. It was established that in the microdischarge with the miniature He flow microjet there were more convenient conditions for the quenching of the band emission originating from OH, N2, NH and NO molecules as compared to those with the Ar microjet. The background level and its fluctuation in the vicinity of analytical lines of metals were lower, while their signal to noise ratios were higher. Under compromised conditions, selected figures of merit for the better microdischarge with the He microjet were evaluated. The detection limits assessed for Ca, K, Li, Mg and Na were within the range of 0.001 to 0.077 mg L−1. These metals were determined in six samples of tap water. The accuracy of this analysis, expressed as the relative error with reference to values determined with flame atomic absorption spectrometry (Ca, Mg) and flame atomic emission spectrometry (K, Li, Na), ranged from −2.1 to +10.1%. In addition, recoveries of metals added to the analyzed tap water samples varied from 90.6 to 106.9%. The precision of the analysis was within 0.2–4.6%.
Effect of Coated Platinum Thickness on Hydrogen Detection Sensitivity of Graphene-Based Sensors

The effect of Pt metal thickness on the hydrogen sensing sensitivity of Pt-coated, multi-layered graphene grown by chemical vapor deposition on Si-polar 4H-SiC, was investigated. As-grown graphene samples and graphene samples coated with 1 or 4 nm thick Pt films were used in this study. Compared to graphene without platinum, significantly improved hydrogen detection sensitivity was observed with the addition of platinum films. The highest hydrogen sensitivity was observed with the graphene sensor with 1 nm platinum coating. The platinum coated graphene sensor also showed good selectivity for hydrogen detection over methane, ammonia, oxygen, and nitrogen oxide.
Efeito do hidrorresfriamento na qualidade de pêssegos 'Chimarrita' e 'Chiripá'

In the present work the effects of hydro cooling on the quality of 'Chimarrita' and 'Chiripa' peaches were evaluated. Peaches were hydrocooled by immersion in water at 5oC with flesh temperatures monitored for 3 minutes and thereafter stored at 0oC ('Chiripa') or 0,5oC ('Chimarrita') for 7, 14 or 21 days. Samples were evaluated at harvest, after retrieval from cold storage and after 2 or 3 more days at 20oC for ripening. Hydrocooled peaches dehydrated more, but both, hydrocooled and control peaches showed symptoms of shriveling after ripening at 20oC. Decay losses of both cultivars did not differ amongst treatments during storage, though, were higher in 'Chimarrita' control peaches after ripening at 20°C. Flesh firmness was similar in hydrocooled and not hydrocooled 'Chimarrita' peaches, but was higher in hydrocooled 'Chiripa' peaches during storage. In both cultivars flesh firmness decreased to the same values after ripening at 20oC. After 21 days of cold storage, woolliness was observed in 50% of 'Chiripa' and in 15% of 'Chimarrita' hydro cooled and not hydrocooled peaches. Firmness retention was observed in 20% of 'Chiripa' and in 50% of 'Chimarrita' peaches. Index terms: Stone fruits, pre cooling, cold storage, chilling injuries.