Miracle-dz/UniFAR-FTUs huggingface dataset:
Plant metabolomics driven chemical and biological comparison of the root bark of Dictamnus dasycarpus and Dictamnus angustifolius

The root bark of Dictamnus dasycarpus (DD) and Dictamnus angustifolius (DA), two commonly used traditional Chinese medicines from the genus Dictamnus (Rutaceae), have been widely used for the treatment of skin ulcer, skin inflammation and other related inflammatory diseases in clinical therapy. The present study compares the chemical and biological differences between DD and DA. An ultra-fast liquid chromatography-tandem mass spectrometry (UFLC-MS/MS)-based plant metabolomics approach has been employed to compare the chemical profiles of DD and DA. 16 chemical markers, including 4 degraded limonoids, 3 limonoids and 9 furoquinoline alkaloids, were identified and the results indicated that there were significant differences in the chemical composition between the two medicinal plants. The methanolic extracts of DA have a relatively higher level of many major furoquinoline alkaloids than that of DD, whereas DD contains more degraded limonoids and limonoids. In addition, the cytotoxic, antimicrobial and antioxidant activities of chemical markers and methanolic extracts of these two medicinal herbs were evaluated. The results presented in this study suggest that DD and DA possess cytotoxic, antimicrobial and antioxidant activities. However, the extracts of DA showed significantly stronger activities than DD in these three bioactivity tests mentioned above. Bioassays also suggested that furoquinoline alkaloids may play a major role in the bioactivities of these two plants and thus could be used as references for quality control.
Design of AgM Bimetallic Alloy Nanostructures (M = Au, Pd, Pt) with Tunable Morphology and Peroxidase-Like Activity

Bimetallic alloy nanoparticles (NPs) exhibit unique optical and catalytic properties that are dependent on their morphology and composition. In this paper, a general and facile way was developed to prepare Ag-related bimetallic alloy NPs with hollow/porous structures, including AgAu, AgPd, and AgPt. The formation of the alloy structures is evidenced by high-resolution transmission electron microscopy (TEM), scanning transmission electron microscopy−energy-dispersive X-ray analysis (STEM-EDX) mapping, and ultraviolet−visible−near-infrared (UV−vis−NIR) absorption spectra. AgM alloy NPs exhibit peroxidase-like activity. A unique composition dependence is found and can be used to tailor the catalytic activity. In addition to the recent discoveries about peroxidase mimetics on Fe3O4 NPs and sheetlike FeS nanostructures, our findings suggest a new type of candidate as peroxidase mimics. Furthermore, for noble metals, apart from size and shape, tailoring the composition poses another effective way to tune the ca.
Quantum cluster equilibrium theory of liquids: Freezing of QCE/3-21G water to tetrakaidecahedral ''Bucky-ice''

We extend the Quantum Cluster Equilibrium (QCE/3-21G-level) theory of liquid water to include larger icelike clusters, including tetrahedral and fullerenelike clusters up to 26-mers. A low-energy tetrakaidecahedral 24-mer (labeled w24_0, with two hexagonal apical faces bridged by 12 pentagons in a cooperatively charge-balanced H-bond pattern) is found to lead to a new low-T phase that bounds both liquid and vapor regions in first-order transition lines, giving rise to a true QCE triple point. We characterize the microstructural composition and macroscopic properties of this “Bucky-ice” phase and examine its dependence on calculated energetics and vibrational properties of constituent clusters. Although the Bucky-ice phase differs in significant respects from physical ice-I (e.g., melting point ∼20 K too high, molar volume ∼5% too low), it manifests qualitatively correct thermodynamic features of true ice polymorphs, suggesting an important role of clathratelike clusters in the liquid/solid transition region.
The Role of Active Constructive Feedback in Building Employee Performance (Case study at a private construction company in Indonesia 2018-2019)

ABSTRACT--Feedback becomes an important part of the performance appraisal process. Feedback is one of the processes to explore the strengths of employees so that it is easier to identify many competencies and the potential of each employee. But the fact is that there are still many leaders who do not consider feedback as an important activity. This has an impact on improving individual performance. This paper aims to describe the activities of leaders at the managerial level in the technical division in the process of improving the performance of their members in 2018 at one of Indonesia's private construction companies. Secondary data were obtained from individual development programs, assessment results, performance appraisal in 2017, while primary data were obtained from field notes, interviews and observations. To express this incident a qualitative case study method is used. The sampling technique is done by purposive and quota sampling and assigns 10 technical division employees as informants. Invalidating the findings of researchers involving the HR management team, leadership, HR practitioners The assessment process carried out by some leaders in assessing technical competencies, core competencies of the company and measuring key performance indicators employees are quite effective, but formal meaningful face-to-face activities have not been used optimally, especially in providing constructive active feedback. In the era of the Industrial Revolution, 4.0 leaders need to understand the philosophy of employee performance appraisal effectively. Based on these findings, human resource managers need to design effective feedback skills training and provide rewards to managers who carry out constructive feedback well.
Effect of Incorporation of Crop Residues on a Maize–Groundnut Sequence in the Humid Tropics. II. Soil Physical and Chemical Properties

Abstract A two‐year study (1997–1999) was conducted on a sandy clay loam (Typic Paleudult) at the experimental farm of the Universiti Putra to determine the effects of application of crop residues on changes of some soil properties in a maize (Zea mays L.)–groundnut (Arachis hypogaea) crop rotation system. Five crops of a rotation of sweet corn–groundnut–sweet corn–groundnut–sweet corn were sown with three treatments: recommended inorganic fertilizer [nitrogen (N), phosphorus (P), and potassium (K)] with crop residue (T1), recommended inorganic fertilizer without crop residues (T2) or one‐half of the recommended inorganic fertilizer with crop residues combined with 10 t ha−1 of chicken manure (T3). Soil organic carbon (OC), soil water content and soil bulk density were not significantly changed. Application of crop residues for two years increased cation exchange capacity (CEC) whereas supplementing crop residues with CM had significantly increased soil pH of the topsoil. Phosphorous in manure treatment had moved down the soil profile, which might cause eutriphication of under ground water, particularly during the rainy season. Based on this work, incorporation of crop residues could be a beneficial practice for improving the fertility of acid soils.
Effect of Potassium Addition on Coprecipitated Iron Catalysts for Fischer-Tropsch Synthesis Using Bio-oil-syngas

The effects of potassium addition and the potassium content on the activity and selectivity of coprecipitated iron catalyst for Fischer-Tropsch synthesis (FTS) were studied in a fixed bed reactor at 1.5 MPa, 300°C, and contact time (W/F) of 12.5 gcath/mol using the model bio-oil-syngas of H2/CO/CO2/N2 (62/8/25/5, vol%). It was found that potassium addition increases the catalyst activity for FTS and the reverse water gas shift reaction. Moreover, potassium increases the average molecular weight (chain length) of the hydrocarbon products. With the increase of potassium content, it was found that CH4 selectivity decreases and the selectivity of liquid phase products (C5+) increases. The characteristics of FTS catalysts with different potassium content were also investigated by various characterization measurements including X-ray diffraction, X-ray photoelectron spectroscopy and Brunauer-Emmett-Teller surface area. Based on experimental results, 100Fe/6Cu/16Al/6K (weight ratio) was selected as the optimal catalyst for FTS from bio-oil-syngas. The results indicate that the 100Fe/6Cu/16Al/6K catalyst is one of the most promising candidates to directly synthesize liquid bio-fuel using bio-oil-syngas.
Novel approach to highly porous superabsorbent hydrogels: synergistic effect of porogens on porosity and swelling rate

A novel practical strategy for preparing highly porous superabsorbent hydrogels (HPSHs) was invented. HPSHs were quantitatively prepared through an optimized rapid convenient solution polymerization of partially neutralized acrylic acid in the presence of a crosslinking agent under normal atmospheric conditions. Acetone and sodium bicarbonate were used as porosity generators (porogens) during the polymerization process to create highly porous structures. Time and sequence of addition of the porogens, as well as the gelation time of the polymerization, were recognized to affect the efficiency of the porogens. Sodium bicarbonate produced the more porous hydrogels with a higher rate of swelling. In comparison with a hydrogel prepared under porogen-free conditions (control), acetone and sodium bicarbonate enhanced the swelling rate as high as 43–55% and 111–131% of the control, respectively. When both the porogens were used consecutively in the process, a remarkable synergistic effect was observed in the swelling rate of the products. Nearly all the two-porogen processes resulted in foamy products from the polymerization system. With the single-porogen systems, however, the foam formation stage was observed only in a part of the total process time. The apparent volume of the as-synthesized foamy products prepared from the two-porogen system was more than that of the single-porogen systems by up to fourfolds. Morphological studies using scanning electron microscopy (SEM) showed that the two-porogen systems created highly porous structures. The density of all the HPSHs synthesized was about 1.5 g cm−3 and no distinct differences were observed in their equilibrium swelling. These superabsorbent hydrogels exhibited a very high rate of swelling, so that their swelling time was measured to be less than one minute. Copyright © 2003 Society of Chemical Industry
Density relaxation of silicon dioxide on (100) silicon during thermal annealing

Measurements of the refractive index of thermally grown oxide after annealing reveal that the density relaxation of the oxide is well described by a stretched exponential decay function. The experiments of two‐step oxidation show that oxygen diffusivity in the oxide exponentially decreases with the oxide density. The relation between the oxide density and the refractive index is well expressed by a simple power relation rather than the Lorenz–Lorenz formula.
Molecular stability of chitosan in acid solutions stored at various conditions

The stability of chitosan with a degree of deacetylation (DD) of 88 and 81% was investigated in solution during storage for 60 days at various temperatures (60, 28, and 5°C) and acid concentrations (0.8M, 0.2M, and 0.1M). The first-order rate constant of chain hydrolysis of 88%DD chitosan at 60°C was about 1.4 times higher than that of the 81%DD sample. At 28°C, the rates of hydrolysis for both chitosan samples were four to five times lower than those at 60°C and are similar. At 5°C, chain degradation was not significant. Although acetic acid caused significantly higher (P ≤ 0.05) chain scission than formic acid, no significant difference of rate change was observed among three different acid concentrations. Reprecipitation of dissolved chitosan was applied for its purification and to transfer dissolved chitosan to the solvent used to measure its molecular weight. Reprecipitation resulted in slightly lower molecular weight (P ≤ 0.05) for both 88%DD and 81%DD samples. The molecular weight of chitosan before and after reprecipitation had good linear relationship (r2 > 0.9). © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
ANALISIS PENGARUH DESENTRALISASI FISKAL TERHADAP KETIMPANGAN DISTRIBUSI PENDAPATAN DI INDONESIA

Penelitian ini bertujuan untuk mengetahui pengaruh dari desentralisasi fiskal, yang diwakili oleh Derajat Desentralisasi Fiskal, serta variabel lain yang mewakili karakteristik daerah yaitu PDRB yang mewakili kondisi ekonomi daerah, total populasi yang mewakili kondisi demografi daerah, dan Indeks Demokrasi Indonesia (IDI) yang mewakili kondisi sosial politik daerah terhadap tingkat ketimpangan distribusi pendapatan yang diwakili oleh Gini Ratio (GR). Penelitian ini menggunakan analisis data panel dengan model Fixed Effect. Hasil penelitian menunjukkan Derajat Desentralisasi Fiskal tidak berpengaruh signifikan terhadap GR dikarenakan pengelolaan keuangan daerah yang masih belum efektif. PDRB berpengaruh negatif signifikan terhadap GR. IDI berpengaruh positif signifikan terhadap GR. Sedangkan Total Populasi tidak berpengaruh signifikan terhadap GR. Kata kunci: desentralisasi fiskal, ketimpangan pendapatan, PDRB, populasi, Indeks DemokrasiIndonesia.
The Innovation and Development of Chinese Film and Television Music from the Perspective of Cultural Identity

With the development of Chinese film and television music mainly through three periods, in each period, China's film and television music has left behind excellent film and television works. With the deepening of China's reform and opening policy, China's film industry has entered a new period. At the same time, with the introduction of western composition techniques into China, Chinese composers absorb it and innovate it, and finally form a unique film style in China. This paper mainly expounds the development of Chinese film and television music, analyzes the role of Chinese film and television music from the perspective of cultural identity, and describes the development of Chinese film and television music from the perspective of cultural identity.
The Growth of Uniform Colloidal Dispersions

Recently, much interest has been focused upon the preparation of monodispersed colloids using the ``growth by diffusion'' process. Although these colloids are useful tools in experimental procedures, no well‐established reason has been given to explain why the ``growth by diffusion'' method should produce such uniform dispersions. In this paper it is shown that an assembly of competing particles, growing by diffusion, develop the squares of their radii at equal rates. This condition provides a mechanism leading towards uniformity.A method, based on this equal square rule, is suggested for the determination of size distributions in polydispersed systems.
Detection of Salmonella sp. on Layer Chicken Eggs Sold at The Vegetable Market of Magetan Regency

Background: Eggs are poultry products that cannot be separated from the possibility of Salmonella contamination . Traditional markets are places where consumers can get chicken eggs with poor hygiene and sanitation aspects. Habits of today's society that often consumes raw or undercooked eggs can trigger Salmonellosis. Purpose: To identify the presence of Salmonella sp . in eggs sold in Magetan Regency Vegetable Market. Method: Sampling of eggs from different random stores. The eggs then proceeded with selection pre-enrichment, selective enrichment, isolation, and identification. Results: The handling of eggs in the Magetan Regency Market was quite good in its storage period, and purebred eggs sold in the Magetan Regency Market were negatively contaminated with Salmonella sp. Conclusion: Broiler chicken eggs sold in Magetan Vegetable Market are safe to consume.
Peripartum cardiomyopathy and its relationship with preeclampsia

Objectives: To know the characteristic of PPCM in RSUD Dr. Soetomo Hospital Surabaya and to know the relationship between PPCM and PE.Materials and Methods: This was a case control study. Data was obtained from medical record of 2843 patients within 2014-2015, divided into 2 groups, 19 patients with PPCM in a case group, and 2824 patients in control group. The statistical analysis used was Fisher exact test.Results: Peripartum cardiomyopathy patients were older compared to control group (32.21 ± 6.83 y.o vs 29.26 ± 6.45 y.o). The incidence of PPCM in our study was about 1 per 149 live births. Most cases were diagnosed antepartum (52.63%), and about 84.2% PPCM cases were also complicating with preeclampsia. The statistical analysis revealed that there was increase risk of PPCM if the pregnant women complicates PE during pregnancy, with Odds Ratio (OR) 20.679, p<0.05. The most common perinatal outcomes was Small for Gestational Age (SGA) babies (81.8%), whereas case fatality rate (CFR) in maternal was 15.7%. Conclusion: Although diagnosis of PPCM is still an exclusion diagnosis, we have to pay more attention to pregnant women complicating with preeclampsia, since preeclampsia can increase the risk of PPCM.
The physical and chemical properties of policosanol-based organogel shortening for replacing saturated and trans-fat in cookies

Organogel is edible oil gel with organogelators which are interested in an alternative way of making zero trans-fat and low saturated fat shortening. Policosanol is a group of long-chain fatty alcohol that shows good organogelator property. Policosanol can be extracted from many sources such as sugar cane wax (SCW), rice bran wax (RBW), and beeswax (BW). The policosanol from different sources are varied in their compositions that may affect on the gelling ability. Therefore, the objective of this study was to investigate the fatty acid composition, physical and chemical properties of policosanol-based organogel shortening for replacing saturated and trans-fat in cookies. The results showed that the organogel shortening had high monounsaturated fatty acid as well as rice bran oil and no trans-fat. Moreover, organogel shortening had lower saturated fat (23.77%) than commercial shortening (CS) (34.39%). The stability index and firmness value were ordered from CS, RWS, SWS, and BWS, respectively. The lowest peroxide value was CS (1.32 meq/ kg oil) and followed by BWS (1.46 meq/ kg oil) whereas there was no significant difference in the acid value between the commercial and organogel shortening (0.03 ± 0.00 mg KOH/g oil). It was also found that the replacement of shortening with organogel produced cookies with high hardness and crispiness than CS cookies. Furthermore, all organogel shortening cookies had low saturated fat and zero trans-fat. Thus, policosanol-based organogel shortening can be used as alternative shortening in cookies.
Sub-20-fs Time-Resolved Measurements in an Apertured Near-Field Optical Microscope Combined with a Pulse-Shaping Technique

We have constructed an ultrafast near-field optical microscope system with near-field pump/probe pulses with a 17 fs duration at the probe tip. The dispersion effects arising from the optical components, especially from the optical fiber, were removed by a pulse-shaping system that consists of passive and adaptive group-velocity dispersion compensators. With this apparatus, we succeeded in measuring dephasing in a single gold nanostructure with a time constant on the order of 10 fs.
Sentinel-1 Image Classification Using Machine Learning Algorithms Based on the Support Vector Machine and Random Forest

Due to concerns of recent earth climate changes such as an increase of earth surface temperature and monitoring its effect on the earth's surface, environmental monitoring is a necessity. Environmental change monitoring in earth sciences needs land use land cover change (LULCC) modeling to investigate the impact of climate change phenomena such as droughts and floods on earth surface land cover. As land cover has a direct effect on Land Surface Temperature (LST), the Land cover mapping is an essential part of climate change modeling. In this paper, for land use land cover mapping (LULCM), image classification of Sentinel-1A Synthetic Aperture Radar (SAR) Ground Range Detected (GRD) data using two machine learning algorithms including Support Vector Machine (SVM) and Random Forest (RF) are implemented in R programming language and compared in terms of overall accuracy for image classification. With seven different scenarios defined in this research, RF and SVM classification methods show their best performance with overall accuracies of 75.30 and 75.35 percent, respectively.
Plasma estradiol‐17ß concentrations in the cow during induced estrus and after injection of estradiol‐17ß benzoate and estradiol‐17ß cypionate ‐a preliminary study

: Plasma estradiol-17 beta concentrations were investigated in cows during induced estrus and after an intramuscular injection of 10 mg of estradiol-17 beta benzoate and estradiol-17 beta cypionate to determine a withdrawal period for both preparations. After the estradiol-17 beta benzoate injection, the plasma estradiol-17 beta concentration was higher than the physiological maximum of 24 pg/ml obtained during induced estrus for a period of 114 +/- 10 h (mean +/- SEM). For estradiol-17 beta cypionate the corresponding value was 170 +/- 17 h (mean +/- SEM). A withdrawal period of 7 days for the benzoate ester and of 10 days for estradiol-17 beta cypionate is therefore proposed. These results were confirmed by biopsies taken at the injection site 8 and 15 days after the injection of estradiol-17 beta benzoate and estradiol-17 beta cypionate, respectively. In these biopsies no residues of estradiol-17 beta nor of its esters could be detected.
Signal-to-Noise Improvement in in Vivo Spin-Echo Spectroscopy in the Presence of Motion

Abstract In the presence of macroscopic motion, spin-echo techniques suffer from signal losses due to motion-induced phase shifts. Several simple and efficient techniques for reducing losses are presented. They are based on coaddition of phased, modulus, or power spectra, instead of coaddition of FIDs. The advantages and drawbacks of each method are analyzed: For it to be performed, phasing of individual spectra requires a sufficiently high signal-to-noise ratio at each scan, at least for one peak. Coaddition of modulus or power spectra does not have this limitation. However coaddition of modulus spectra introduces a baseline artifact. This prevents peaks smaller than the rms value of the noise on individual scans to be observed. Furthermore this mode is nonlinear for low-intensity signals. In contrast, coaddition of power spectra is a linear mode with respect to the peak intensities. The drawback is that, for peaks smaller than the rms value of the noise on individual scans, the noise level depends on the signal-to-noise ratio. These methods have been shown to increase the signal-to-noise ratio in in vivo1H spectroscopy of the rat brain. Furthermore utilization of these techniques greatly improve the accuracy of T2 measurements and reduce t1, noise in in vivo 2D experiments.
Simple Least-Squares Estimation of Intensities of Overlapping Signals in 2D NMR Spectra

Abstract It is described how a least-squares estimate of a two-dimensional NMR signal intensity can be calculated from two one-dimensional intensities, as estimated from a row and a column, respectively. The result is independent of artifacts associated with the Fourier transform, and it is unaffected by phase distortions and poor base plane definition in the spectrum. Cases of overlapping signals are discussed, and it is shown that because of the involved least-squares procedure, optimum results can be produced even when the overlap is substantial. Results of test calculations on simulated examples are presented, and it is shown that deviations of the calculated two-dimensional intensities from the correct values are small and in agreement with the standard deviations, also provided by the method. Finally, two-dimensional intensities calculated from experimental data are presented.