Miracle-dz/UniFAR-FTUs huggingface dataset:
Safety of early same-admission laparoscopic cholecystectomy for acute mild biliary pancreatitis. A retrospective study for acute pancreatitis

Introduction As the standard procedure for the surgical treatment for gallbladder stones, we investigated the controversy surrounding the optimal time for laparoscopic cholecystectomy (LC) for acute mild biliary pancreatitis (AMBP). Aim To further address the optimal timing of LC, we conducted a retrospective study comparing early (< 72 h, group I) with delayed (> 72 h, group II) LC for AMBP during the same admission. Material and methods This retrospective study included medical records of all patients who were admitted with a diagnosis of acute mild biliary pancreatitis at Dongyang People’s Hospital from July 2011 to June 2019. Results A total of 119 patients were divided into an early LC group (group I; 52 patients) and a control group (group II; 67 patients). Conversion to open cholecystectomy (COC) was performed in 17 patients (6 patients in group I and 11 patients in group II, p = 0.62). There were no significant differences in terms of estimated blood loss and duration of surgery (p = 0.08 and p = 0.64, respectively). The overall hospital stay in group I was significantly shorter than in group II (10.86 ±3.21 vs. 13.29 ±4.51 days, p = 0.001). Compared with postoperative bile leakage (p = 0.72) and postoperative morbidity (p = 0.97) and mortality, there were no significant differences between the groups. Conclusions Early LC during the same admission is safe for acute mild biliary pancreatitis and has the advantage of shortening overall hospital stay. There was no significant increase in COC, bile duct injury, and complications.
Types of Lexical Cohesion and Grammatical Cohesion in Thesis Abstracts

This research attempted at investigating the types of lexical cohesion and grammatical cohesion used in thesis abstracts composed by undergraduate English department students of Universitas Bengkulu and also the errors of using cohesion. The research was designed as a descriptive quantitative method. The corpus of this study was 30 thesis abstracts composed by undergraduate English department students of Universitas Bengkulu. The instrument of this research was self-developed checklist. In analyzing data, the researchers were using formula by Sugiono. The results of this research showed that : 1. ) There were 458 as the total number of six lexical cohesion types found in 30 thesis abstracts and the most dominant type is Repetition (58.7%). 2. ) There were 783 as the total number of four grammatical cohesion types found in 30 thesis abstracts and the most dominant type is Reference (70.2%). 3. ) There werere three errors of using cohesion namely omission of conjunction and selection of conjunction. Therefore, it was concluded that the thesis abstracts composed by undergraduate English department students of Universitas Bengkulu were in the percentage of 99.76% good.
Antibacterial Activity of Essential Oils from Pinaceae Leaves Against Fish Pathogens

1) Fish pathogens cause not only economic damages to fish farming but also infectious pathogens known as a zoonotic agent. Since the continued use of antibiotics to control fish pathogens entails side effects, materials of natural origin need to be developed. The purpose of this study is to discover coniferous essential oils with excellent antibacterial effects in order to develop antibiotic alternatives. We have extracted essential oils using hydro-distillation from the leaves of Abies holophylla, Pinus thunbergii, Pinus parviflora, Tsuga sieboldii, and Pinus rigitaeda, which are all Pinaceae family. And, we have evaluated antibacterial activity with the extracted essential oils against Edwardsiella tarda, Photobacterium damselae, Streptococcus parauberis, and Lactococcus garvieae, which are fish pathogens. As a result, the essential oils from A. holophylla and P. thunbergii showed the selectively strong antibacterial activity against E. tarda and P. damselae, which are gram-negative bacteria. From GC-MS analysis, it was identified that main component of A. holophylla essential oils are (-)-bornyl acetate (29.45%), D-limonene (20.47%), and camphene (11.73%), and that of P. thunbergii essential oils is α-pinene (59.81%). In addition, we found three compounds: neryl acetate, (-)-borneol, and (-)-carveol, which are oxygenated monoterpenes. These exist in a very small amount but exhibit the same efficacy as essential oil. Therefore, we expect that A. holophylla and P. thunbergii essential oils having excellent growth inhibitory effect against gram-negative fish pathogens can be used as biological products such as feed additives and fishery products.
Organic Complexes Built by Halogenated Molecules: Unexpected in Situ C-N Bond Formation in Metal-Free Solvothermal Conditions

Reactions of two halogenated derivatives of bis(4-hydroxyphenyl)sulphone (BPS, 1), tetrabromobisphenol-S (TBBPS, 2), and tetrachlorobisphenol-S (TCBPS, 3), with piperazine (PZ, 4), were investigated by means of the combinational usage of solvothermal and mechanochemical methods. The resultant organic complexes, [(C6H2OBr2)2SO2]·[(C4H10N2)2CH2] (5), [(C6H2OBr2)2SO2]2·(C4H12N2)2·3(CH3OH) (6), [(C6H2OCl2)2SO2]·[(C4H10N2)2CH2] (7), and [(C6H2OCl2)2SO2]2·(C4H12N2)2·3(CH3OH) (8), were fully characterized by single crystal and powder X-ray diffractions. In the cases of complexes 5 and 7 that were prepared from solvothermal conditions, a rare metal-free in situ ligand formation has been observed, in which the new organic molecule 1,2-bispiperazinylmethane was presumably originated from the double C–N coupling of two piperazines on a carbon atom coming from methanol. In addition, the relevant concomitants 6 and 8 were also isolated from the solutions of 5 and 7, respectively. Complexes 6 and 8 contain 1:1 starting.
A photoluminescence study of REE3+ emissions in radiation-damaged zircon

Abstract A series of natural zircon samples (with U concentrations of 140-2600 ppm and ranging from well crystalline to severely radiation damaged) were investigated by means of REE3+ photoluminescence spectroscopy. We found systematic changes in REE3+ emissions depending on the accumulated radiation damage expressed by the effective time-integrated a-dose of zircon samples. Structural reconstitution as caused by dry annealing resulted in intensity gains and decreases of half-widths of REE3+ emissions. The band half-widths of distinct luminescence Stark’s levels of the 4F9/2 → 6H13/2 transition of Dy3+ (~17 250 cm-1; ~580 nm wavelength) and the 4F3/2 → 4I9/2 transition of Nd3+ (~11 300 cm-1; ~885 nm wavelength) were found to correlate sensitively with the degree of radiation damage accumulated. These REE3+ emissions are proposed as potential measure of the irradiation-induced structural disorder of zircon. The two emissions are considered particularly suitable because (1) they are commonly detected in PL spectra of natural zircon, and (2) they are hardly biased by other emissions or Stark’s levels. Preliminary calibration curves that relate band-width increases to the a dose were established using a suite of well-characterized Sri Lankan zircon. Band broadening upon increasing corpuscular self-irradiation is assigned to increasing structural destruction, i.e., the increasing perturbation of REE3+ cationic lattice sites. Possible advantages of REE3+ luminescence spectroscopy, complementary to Raman spectroscopy, as method to quantify structural radiation damage are discussed.
Oxygen vacancies on nanosized ceria govern the NOx storage capacity of NSR catalysts

Pt/BaO/CeO2 catalysts derived from CeO2 nanomaterials with shapes of rods, cubes, and particles were investigated for NOx storage/reduction. Catalytic tests were performed in a transient flow reactor system. A series of characterization techniques including XRD, TEM, XPS, EXAFS, NOx-TPD, H2-TPR and in situ DRIFTS were conducted to investigate the electrical, chemical, and structural properties. The NOx storage-reduction performance ranked by the CeO2 support was nanorods > nanoparticles > nanocubes. Amazingly, the CeO2-nanorod based NSR catalyst possessed a superior NOx storage capacity (NSC) of 913.8 μmol NOx gcat−1 at 350 °C in the absence of H2O and CO2, which almost reached the theoretical value. Even under harsh lean–rich cycling conditions (90 s vs. 6 s) and a high GHSV of 360 000 h−1, the nanorod-based catalyst also showed the best reduction efficiency, affording ~ 99% NOx conversion levels from 200 °C to 400 °C under the conditions without H2O and CO2. The morphology of ceria has significant influences on the selectivity of ammonia, and on the H2O and CO2 tolerance during the NSR process. For the first time, a close linear correlation was drawn between the NOx storage capacity and the amount of oxygen vacancies of NSR catalysts. Over the NSR catalysts, oxygen vacancies play a crucial role in anchoring Pt. Meanwhile, H2-TPR results showed that the number of active surface oxygen species trapped in oxygen vacancies was closely related to the NSC value. This suggests that the oxygen vacancies on the NSR surface govern the NOx storage capacity by creating efficient sites or channels for the formation of nitrate and its further transformation to Ba-based storage sites. These findings may be fundamental for designing ceria-based NSR catalysts with better performance.
Heterogeneous Ice Nucleation Induced by Electric Fields

Heterogeneous ice nucleation is an important phenomenon in the physical environment influencing atmospheric and biological processes. Despite this relevance, the mechanism of heterogeneous ice nucleation is not understood at the microscopic level, and what exactly constitutes a good ice nucleus is an open question. Employing molecular dynamics simulations, we demonstrate that an electric field, which acts very near a surface, can create an effective ice nucleus in models of supercooled liquid water. To serve as an ice nucleus, the field must polarize only a very thin water layer (∼10 A), and the field strength required is realistic on the relevant length scale. Our results support the idea that local electric fields could play a major role in heterogeneous ice nucleation, particularly for the very rough particles with many surface structure variations, that serve as ice nuclei in environmentally realistic situations.
Chemical constituents from Angelica sinensis

Objective To study chemical constituents from EtOAc extract of Angelica sinensis.Methods The compounds were isolated by various chromatographic techniques and the structures were elucidated on the basis of spectral analysis.Results Sixteen compounds were obtained and their structures were identified as senkyunolide G(1),senkyunolide H(2),senkyunolide I(3),senkyunolide J(4),(3Z,3′Z)-6,8′,7,3′-diligustilide(5),3R,8S-falcarindiol(6),11S,16R-dihydroxyoctadeca-9Z,17-dien-12,14-diynoic-1-yl acetate(7),4-(2-hydroxy-1-methoxyethyl) phenol(8),4-(2-hydroxy-1-ethoxyethyl)phenol(9),5-acetoxymethyl-furaldehyde(10),5-hydromethylfuraldehyde(11),brefeldin A(12),vanillin(13),4-methylphenol(14),ferulic acid(15),and ferulaldehyde(16). Conclusion Compounds 8—10 are firstly obtained from the plants of Angelica L. ,and compounds 6 and 7 are isolated from A.sinensis for the first time.Furthermore,the assignments of 13C-NMR data of compound 1 are reported in this paper for the first time.
Graphene : from diffusive to ultraclean-interacting systems

In this thesis electron transport in disordered, substrate supported graphene and suspended ultraclean graphene is studied. We investigate graphene lying on top of silicon oxide and contacted with superconducting aluminium electrodes. The conductions fluctuations (CF) are studied in single layer graphene devices. The CF are found to be enhanced by superconductivity by a factor of 1.4 to 2. This (near) doubling of the CF indicates that the phase coherence length is l >= L/2. Compared to previous work, we find a relatively weak dependence of the CF on the gate voltage, and hence on the carrier density. We also demonstrate that whether the CF are larger or smaller at the charge neutrality point can be strongly dependent on the series resistance Rc, which needs to be subtracted. Furthermore, ultraclean suspended graphene is investigated. We explain the fabrication steps and show measurements at low temperatures of suspended single layer graphene and bilayer graphene devices. For suspended single layer graphene we find that very small perpendicular magnetic fields (>100 mT) are sufficient to form Landau level quantisation. At fields above 0.4 T, the graphene becomes insulating and we observe that this transition is independent of temperature from 0.24 K to 1.5 K. Moreover, we study the electrical transport in clean current annealed suspended bilayer graphene. Bilayer graphene bears an eight-fold degeneracy due to spin, valley and layer symmetry, allowing for a wealth of broken symmetry states induced by magnetic or electric fields, by strain, or even spontaneously by interaction. We find two kinds of devices. In bilayers of type B1 the eight-fold zero-energy Landau level is partially lifted above a threshold field revealing an insulating v=0 quantum Hall state at the charge neutrality point (CNP). In bilayers of type B2 the LL lifting is full and gap-like features appear in IV spectroscopy even at zero magnetic field, suggesting an insulating spontaneously broken symmetry state. Unlike B1, the minimum conductance in B2 is not exponentially suppressed, but remains finite with a value G < e2/h even in a large magnetic field. We suggest that this phase of B2 is insulating in the bulk and bound by compressible edge states. In the last part, we probe the quantum Hall effect in suspended bilayer graphene Hall crosses. Four contacts allow to determine the homogeneity of the current annealing. From the quantum Hall signal we extract a surprisingly low mobility of 10'000 - 40'000 m2/Vs, much lower than expected from previously reported field effect mobilities. The observed features in IV spectroscopy are found to show a strong growth in size with perpendicular magnetic field.
Association between cigarette smoking and plasma concentration of efavirenz: a systematic review

Introduction: Statistics show that prevalence of smokers is higher among human immunodeficiency virus-positive patients. Efavirenz is still widely used in resource-limited setting around the world. In view of overlapping metabolic pathways between cigarette smoking and efavirenz, it is suggested that poorer treatment outcome among smokers with HIV might be in some way associated with abnormal plasma concentration of efavirenz. Material and methods: Comprehensive search of the literature was performed using PubMed Central, PubMed/Medline, Cochrane Review, Science Direct, Springer Link, Oxford Academic, and Lippincott Williams & Wilkins journals. Results: A total of 157 articles were chosen, out of which 8 met eligibility criteria and were reviewed. Lower efavirenz plasma concentration were found in 5 articles, where genetic polymorphism was the major significant co-variate. Only 2 studies described smoking as significantly associated with lower efavirenz plasma concentration. Conclusions: Smoking was found to be associated with a lower efavirenz plasma concentration, especially in population with genetic polymorphism. Future research is required with better methodological design, and subjects with genetic polymorphism need to be excluded, to further investigate the causal relationship of smoking status and efavirenz plasma concentration. retrospective cohort study, case-control study, and pharmacokinetic study.
An Integrated Common-Mode Fast-Balancing Mechanism for Three-Phase Three-Level Converter With LCL Filter

A three-phase three-level converter with an LCL filter has been used in the industry because of its low switching harmonics. However, it inevitably suffers from dc neutral-point imbalance, which may unnecessarily stress semiconductors and deteriorate power quality. The imbalance will, nevertheless, naturally rebalance, but it usually takes a long time. A common rectification is, thus, to add an active or a passive booster to speed up the balancing. An active booster requires sensitive sensors and control modification, which will increase the system cost and complexity. A passive booster is, therefore, preferred owing to its exemption of monitoring and control efforts. The existing three-phase passive booster, however, contains several extra separate LC components, which are normally not functioning during the balanced conditions. They should, hence, be reduced. One approach is to dual use the existing LCL (or other high-order) filter for both harmonic filtering and dc-link balancing. Topologically, it requires only the addition of one extra capacitor along the return common-mode path. Using newly formulated criterions related to sizing, harmonic, and modulation selections, the balancing performance of the resulting capacitive balancer has been evaluated comprehensively. Finally, an experimental prototype is built for testing the balancing mechanism under different operating conditions.
Evaluation of probationary performance of Thai Government officials

This mixed methodology research aims to evaluate the probationary performance of Thai Government officials in order to obtain the suggestion for improving the criteria and method of probationary performance. The qualitative research started from an interview with executives, followed by the survey on behaviours of new generation and opinion survey on probationary performance among government officials. Content analysis and multiple regression analysis were applied. According to the findings, data from every source agreed that the main function of probationary performance is to be the last step in selecting qualified government officials suitable for specific agencies. The factors of organisation culture of government agencies, the nature of Thai Government officials, and behaviours of the new generation can forecast the decision of new generation to work in civil service by 56.90%. The result suggested that the probationary period should be six months. It is also recommended that e-learning and general seminar among officials during probationary period as should not be part of the judgment criteria, but be under supervision of supervisors. In addition, the ratio of performance and behavioural score should be maintained at 50:50, but the minimum score of each attribute is 60%, and the minimum total score is 70%.
Research on AHP-based Entrepreneurial Oriented Evaluation Model Taking Manufacturing Enterprises as an Example

As the foundation of China's real economy, manufacturing industry is an important promoter of China's industrial transformation and upgrading. As market uncertainty increases, how to quickly respond to market changes and maintain a competitive advantage is a concern for manufacturing companies. Entrepreneurship orientation is an important strategy for enterprises to maintain vitality and sustain healthy development, which is of great significance to the development of manufacturing enterprises. This paper sorts out 21 specific factors in 5 categories that affect the entrepreneurial orientation of the manufacturing industry, and constructs an evaluation model of the entrepreneurial orientation of the manufacturing enterprises based on AHP, which provides directions for the transformation and upgrading of the manufacturing industry.
Using natural language generation to bootstrap missing Wikipedia articles: A human-centric perspective

Nowadays natural language generation (NLG) is used in everything from news reporting and chatbots to social media management. Recent advances in machine learning have made it possible to train NLG systems that seek to achieve human-level performance in text writing and summarisation. In this paper, we propose such a system in the context of Wikipedia and evaluate it with Wikipedia readers and editors. Our solution builds upon the ArticlePlaceholder, a tool used in 14 under-resourced Wikipedia language versions, which displays structured data from the Wikidata knowledge base on empty Wikipedia pages. We train a neural network to generate an introductory sentence from the Wikidata triples shown by the ArticlePlaceholder, and explore how Wikipedia users engage with it. The evaluation, which includes an automatic, a judgement-based, and a task-based component, shows that the summary sentences score well in terms of perceived fluency and appropriateness for Wikipedia, and can help editors bootstrap new articles. It also hints at several potential implications of using NLG solutions in Wikipedia at large, including content quality, trust in technology, and algorithmic transparency.
One-pot, Solvent-free Cascade Michael-reductive Cyclization Reaction for the Synthesis of Ethyl 3,5-disubstituted-1H-pyrrole-2-carboxylates Under Microwave Irradiation

An efficient, one-pot, solvent-free synthesis of ethyl 3,5-disubstituted-1H-pyrrole-2-carboxylate is achieved by a reaction of 1,3-disubstituted propen-2-one and ethylnitroacetate, in presence of diethylamine (Et2NH) and triethyl- phosphite (P(OEt)3) under microwave (MW) irradiation via cascade Michael-reductive cyclization. The mechanistic out- come of the reaction has also been described. This protocol establishes an easy access to disubstituted-1H-pyrrole-2- carboxylates in one pot.
Mechanism of Dehydration of Phenols on Noble Metals via First-Principles Microkinetic Modeling

Phenolic compounds constitute a sizable fraction of depolymerized biomass and are an ideal feedstock for the production of chemicals such as benzene and toluene. However, these compounds require catalytic upgrade via hydrodeoxygenation (HDO), a process whereby oxygen is removed as water by adding hydrogen while retaining the carbon molecular architecture. While the HDO of phenolics has been widely studied, a mechanism that is consistent with the data is still lacking. Herein, we perform first-principles microkinetic calculations for the HDO mechanism of an archetypical compound, p-cresol, on Pt(111). In contrast to the general belief, and in accordance with experimental data, we show that the single metal functionality is sufficient to carry out the HDO chemistry selectively, although ring activation is necessary. However, complete hydrogenation of the ring is neither necessary nor kinetically preferred. As a result, the conversion of p-cresol to toluene follows a complex energy landscape, where methylcyc.
Preparation and characterization of nanofunctionalized alginate/methacrylated gelatin hybrid hydrogels

Curcumin has been shown to be effective in many biomedical processes. However, the functionalization of hydrogel constructs with curcumin has been challenging due to its low water solubility. Here, we developed the preparation of alginate/methacrylated gelatin (GelMA) hybrid hydrogels functionalized with nanoliposomes encapsulating curcumin. Physicochemical properties of the polymer solutions and resulting hydrogels were studied. The engineered systems showed great rheological and swelling properties. The release behavior of curcumin-loaded nanoliposomes demonstrated their suitability as a drug delivery system. These novel biomaterial systems could be an excellent candidate for tissue engineering applications.