Miracle-dz/UniFAR-FTUs huggingface dataset:
Information structures in sociology research papers: Modeling cause–effect and comparison relations in research objective and result statements 1

When writing a research paper, the author has to select information to include in the paper to support various arguments. The information has to be organized and synthesized into a coherent whole through relationships and information structures. There is hardly any research on the information structure of research papers, and how information structure supports rhetorical and argument structures. Thus, this study is focused on information organization in the Abstract and Introduction sections of sociology research papers, analyzing the information structure of research objective, question, hypothesis, and result statements. The study is limited to research papers reporting research that investigated cause–effect relations between two concepts. Two semantic frames were developed to specify the types of information associated with cause–effect and comparison relations, and used as coding schemes to annotate the text for different information types. Six link patterns between the two frames were identified—showing how comparisons are used to support the claim that the cause‐effect relation is valid. This study demonstrated how semantic frames can be incorporated in discourse analysis to identify deep structures underlying the argument structure. The results carry implications for the knowledge representation of academic research in knowledge graphs, for semantic relation extraction, and teaching of academic writing.
Effect of Current Density on the Wear Resistance of Ni–P Alloy Coating Prepared through Immersion-Assisted Jet-Electrodeposition

To improve the wear resistance of 45 steel surfaces, a Ni−P alloy coating was prepared on the surface of 45 steel with an immersion-assisted jet-electrodeposition technology. Scanning electron microscopy, energy dispersive spectrometry, X-ray diffraction and confocal microscopy were used in testing the surface morphology, composition, structure, grain size, and wear scar parameters of the coating. The effect of immersion-assisted jet-electrodeposition on the wear resistance of Ni−P alloy coating at current densities of 20–60 A·cm−2 were explored and analyzed. Results showed that the surface quality, microhardness, and wear resistance of Ni−P alloy coatings prepared through immersion-assisted jet-electrodeposition were improved compared with those of the coatings prepared through traditional jet-electrodeposition. With the increase in the current density, the surface cell structure of the alloy coating was refined, the flatness was improved, the surface Ni content was increased, the grain size was refined, and the coating thickness, the microhardness, and wear resistance showed a trend of first increasing and then decreasing. The best surface quality of the coating was observed at a current density of 50 A·cm−2. Moreover, the unit cell structure was obvious, the surface was flat and dense, the coating thickness was the largest, reaching 21.42 μm, the highest Ni content was obtained (98.25 wt.%), the smallest grain size (6.6 nm) was obtained, the microhardness of the coating reached a maximum value (725.58 HV0.1), and the best wear resistance was observed.
Independence of placement for local Fourier analysis

Local Fourier analysis (LFA) serves a prominent role in the prediction of the convergence factor of multigrid methods for discretizations of PDEs. However, few discussions about the implementation of LFA for complicated discretizations of PDEs exist, such as higher order finite elements, as staggered meshes could lead to complex LFA representations of the grid‐transfer operator. In this work, we prove that the LFA representation for d‐dimensional PDEs is independent of the placement of degrees of freedom (DoFs). Intuitively speaking, the seeding of the unknowns has no direct effect on the LFA presentation, instead, it serves as a unitary transformation between different representations. Thus, different LFA representations for a given PDE have the same spectrum and norm. Furthermore, we provide a uniform representation in terms of the location of the unknowns, named simple representation, where we allocate all of the DoFs at nodes, resulting in a simple and unified way to compute the symbols of the discrete operators, especially for the grid‐transfer operators. This simple representation can contribute to the generalization of the implementation of LFA for different types of discretizations and different problems, especially for higher order discretization methods.
Application of kinetic Monte Carlo method to the vapour–liquid equilibria of associating fluids and their mixtures

Abstract Canonical kinetic Monte Carlo (C-kMC) simulations have been carried out to assess their feasibility and potential for calculating the vapour–liquid equilibria of various pure components with increasingly strong electrostatic interactions (carbon dioxide, methanol, ammonia and water) over a wide range of temperatures and for methanol/water mixtures at 298 K. The simulation results show that C-kMC is successful as a method for studying phase equilibria and thermodynamic properties. For all the examples investigated, the performance of the C-kMC method is at least as good as that of the conventional Monte Carlo (MC) methods and is efficient at low temperature where these fail. It also provides a route that is superior to the Widom method for the calculation of chemical potential. We recommend this method for this purpose and as an alternative to conventional MC for simulations of strongly associating fluids and at low temperatures.
Teaching under attack: The dilemmas, goals, and practices of upper-elementary school teachers when dealing with terrorism in class

ABSTRACT This article investigates how 12 upper-elementary school teachers dealt with the occurrence of a terrorist attack in their city during school hours and in the immediate aftermath. All teachers were interviewed shortly after the terrorist attack about their goals, dilemmas, and pedagogical strategies employed in the classroom. We found that during the day of the attack the teachers tried to focus on providing both emotional support and adequate information to the pupils. While doing so, the teachers encountered four types of dilemmas: their perceived lack of knowledge concerning the attack and terrorism in general, their worry about increasing fear among pupils by discussing terrorism, the conundrum of balancing the different (and contrasting) perspectives of the pupils, and the lack of clear management support or guidelines issued. The findings are discussed through the lens of a pedagogy for political trauma, and a case is made for expanding this pedagogy with a historicizing approach. Such an approach may provide teachers with a (depoliticized) framework of reference that enables them to help pupils understand and reflect on the upsetting and contested topic of terrorism.
Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System

This paper presents a Dual-sideband Optical Carrier Suppression (DSB-OCS) technique which is used to generate an optical millimeter-wave (mm-wave) signal in radio over fiber (RoF) systems. The proposed system employs a Dual-Electrode Mach-Zehnder Modulator (DE-MZM) and a carrier of 40 GHz mm-wave for data transmission through the RoF systems. Characteristics determining the performance of the system, among which are the modulation index, phase imbalance and dispersion parameters, are included. The performance evaluations of the system show that the mm-wave signal output power follows MZM’s transfer function when the modulation index is raised. Moreover, the generated optical mm-wave signal power is affected by phase imbalance and optical splitting ratio. It is observed that the optical fiber dispersion influences the DSB-OCS system by decreasing the amplitude of the mm-wave and the signal-to-noise ratio (SNR).
Blurred Lines: The Ambiguity of Disparaging Humour and Slurs in Norwegian High School Boys’ Friendship Groups

This article examines the use of disparaging humour and slurs in Norwegian high school boys’ friendship groups to shed light on the complexity of adolescent males’ friendships and everyday socialization through a phenomenon that is usually connected to bullying. The study employed a qualitative approach consisting of participant observation and individual interviews with students. The article addresses the ambiguity embedded in the boys’ use of disparaging humour and slurs. The findings of this study suggest that the boys employ prejudiced and discriminatory language frequently with friends; however, the intent behind it is not linked to discriminatory or prejudiced attitudes or practices. Thus, adolescent boys utilize a form of humour where lines between harmful and harmless are blurred and inherently complex. The ambiguity of disparaging humour and slurs may cause challenges for teachers, and this article offers valuable new knowledge that may support them in their daily work.
Bone tissue engineering via application of a collagen/hydroxyapatite 4D-printed biomimetic scaffold for spinal fusion

The fabrication of biomimetic scaffolding is a challenging issue in tissue engineering. Scaffolds must be designed with micrometer precision to enable cell proliferation and tissue growth, requiring customization based on the type of tissue being developed. Biomimetic scaffolds have attracted interest for their potential in spinal fusion applications. By providing a structured environment to promote osteogenesis, these materials offer a robust and minimally invasive means to fuse vertebrae. The present study describes the successful preparation of a biomimetic collagen/hydroxyapatite hierarchical scaffold, with each strut having several microchannels via 3D printing, leaching, and coating processes (i.e., one-way shape morphing, 4D printing). The biophysical properties of the scaffold were analyzed, as were its various cellular activities, using human adipose stem cells. This biomimetic microchannel scaffold demonstrated great potential for osteogenic activities in vitro and significantly increased new bone formation and ingrowth of blood vessels in vivo in a mouse model of posterolateral lumbar spinal fusion. These in vitro and in vivo results suggest that the microchannel collagen/hydroxyapatite scaffold could act as a potential bone graft substitute to promote high rates of successful fusion.
Rates and mechanism of Y, REE, and Cr diffusion in garnet

Abstract Numerical simulation of the evolution of stranded diffusion profiles in partially resorbed garnet crystals from the aureole of the Makhavinekh Lake Pluton, Labrador, yields quantitative determinations of rates of diffusion of Y, rare earth elements (REEs), and Cr at ~700-900 °C, 0.53 GPa. Diffusion coefficients for these trivalent cations are 0.5-1.5 log10 units smaller than those for major divalent cations measured in the same crystals, but diffusivities for trivalent cations are all equal to one another to within ±0.25 log10 unit. Integration of these new data with previously published results resolves some prior inconsistencies, and defines the dependence of diffusivities for Y, the REEs, and Cr on temperature, pressure, and oxygen fugacity, while accounting for minor effects of ionic radius and host-crystal composition. Nd, Sm, and Eu-elements that are strongly depleted in rims of relict garnet crystals due to preferential partitioning out of garnet during resorption-evolve small but distinct maxima from initially nearly flat profiles; this “uphill diffusion” results from cross-coupling with Y and the other REEs, which are strongly concentrated in relict garnet rims by resorption. The weak dependence of diffusivity on ionic radius and host-crystal composition, the near-equivalence of diffusivities of Y+REEs with that of Cr, and the strong positive cross-coupling among Y+REEs are all explained by a diffusion mechanism that links the mobility of VIIIY+REEs with that of VIAl; this is likely a consequence of the dominance of the menzerite-(Y) component as a means of incorporating Y+REEs in the garnet structure. However, the variety of possible substitution mechanisms that may enable Y+REE incorporation into garnet, and the degree to which each may be favored in different regimes of temperature, pressure, and oxygen fugacity, imply a potential for great complexity, as the net diffusional flux may result from the superposed effect of multiple diffusion mechanisms, each with different kinetics.
Reactive UAV Fleet’s Mission Planning in Highly Dynamic and Unpredictable Environments

Unmanned aerial vehicles (UAVs) create an interesting alternative for establishing more sustainable urban freight deliveries. The substitution of traditional trucks in the last-mile distribution by a UAV fleet can contribute to urban sustainability by reducing air pollution and increasing urban freight efficiency. This paper presents a novel approach to the joint proactive and reactive planning of deliveries by a UAV fleet. We develop a receding horizon-based approach to reactive, online planning for the UAV fleet’s mission. We considered the delivery of goods to spatially dispersed customers over an assumed time horizon. Forecasted weather changes affect the energy consumption of UAVs and limit their range. Therefore, consideration should be given to plans for follow-up tasks, previously unmet needs, and predictions of disturbances over a moving time horizon. We propose a set of reaction rules that can be encountered during delivery in a highly dynamic and unpredictable environment. We implement a constraint programming paradigm, which is well suited to cope with the nonlinearity of the system’s characteristics. The proposed approach to online reactive UAV routing is evaluated in several instances. The computational experiments have shown that the developed model is capable of providing feasible plans for a UAV fleet’s mission that are robust to changes in weather and customer’s orders.
Moving down the urban hierarchy: Turning point of China’s internal migration caused by age structure and hukou system

Internal migration is critically important in China, where the fertility rate is declining and international immigration is under strict control. This study explores the massive population movement in China, examines the migration pattern of non-hukou migrants, 2010–2015 and 2014–2015 migration patterns through the urban hierarchy of the urban system using migration trajectories derived from the 2015 One Percent Population Sample Survey. Results reveal an emerging reversal from a predominantly upward pattern (e.g. most of the net flows move to high-level cities) to a downward one (e.g. from super-large/extra-large cities to large cities) in the recent migration trend. Regional disparities are significant. An upward and eastward tendency still dominates in the western, central and northeastern regions, whereas a downward and decentralised tendency has been initiated in the eastern region. The causes for the structural change include common factors found in developed countries, such as the influence of age and life courses. The age structure of China’s population caused by the ‘one-child’ policy weakened the upward momentum and led to a strengthening downward trend in the current migration pattern. The contextual and institutional factor hukou also has a significant effect on people’s migration directions. Hukou attracts people to move up or down the hierarchy to their registered place or where they can acquire registration. The characteristics of registered migrants reflect the different criteria of cities in granting hukou.
Recent advances in SWRO and emerging membrane-based processes for seawater desalination

Seawater reverse osmosis (SWRO), a membrane-based process, has largely supplanted thermal processes as the conventional seawater desalination technology globally (Amy et al., 2017), although some multi-effect distillation (MED) facilities have recently been constructed in Gulf Cooperation Council (GCC) region proximate to the Gulf of Arabia and the Red Sea. The SWRO technology itself is dynamically evolving through improvements in desalting performance (overall salinity rejection as well as problematical constituents (e.g., boron (B)), unit cost ($/m3), specific energy consumption (kWh/m3), permeability (LMH/bar), and fouling resistance. There is considerable ongoing material-science work on improving SWRO performance through development of high-permeability RO (HPRO) membranes, permitting less membrane area for a given operating pressure, and antifouling RO (AF-RO) membranes, enabling longer operational cycles between cleaning-inplace (CIP) events with less chemical wastes (spent cleaning solutions). In addition, novel process configurations such as closed circuit RO (CC-RO) and flow reversal RO (FR-RO) are being developed, using standard SWRO spiral wound elements, to promote higher water recovery with lower scaling.
Population genetic structure of hard clam (Meretrix lyrata) along the Southern coast of Thailand

Abstract. Suppapan J, Sangthong P, Songrak A, Supmee V. 2021. Population genetic structure of hard clam (Meretrix lyrata) along the Southern coast of Thailand. Biodiversitas 22: 2489-2496. The hard clam (Meretrix lyrata), which is an economically important fishery item in Southern Thailand, has decreased rapidly due to overexploitation. To construct sustainable management of this species, genetic information is necessary. In our study, the genetic diversity of M. lyrata was investigated based on the variation of the nucleotide sequence (439 bp) of mitochondrial DNA (mtDNA) in the cytochrome oxidase subunit I gene (mtDNA COI). The mtDNA COI sequences of 145 individuals collecting from 6 sampling sites along the Southern coast of Thailand were analyzed. The results revealed that M. lyrata populations showed moderate to low levels of genetic diversity. All of the population genetic structure analysis revealed the genetic differentiation of the hard clam between the Gulf of Thailand and the Andaman Sea populations. Based on these results, a genetic structure of the hard clam M. lyrata in Southern Thailand was possibly caused by a disruptive gene flow from the geographic factors by the Thai-Malay Peninsula. The demographic history test revealed that the hard clam living in Southern Thailand had experienced population expansion. This study provided the first genetic information that could be used for conserving the hard clam M. lyrata in Southern Thailand.
The Seesaw of Seasonal Precipitation Variability Between North China and the Southwest United States: A Response to Arctic Amplification

Surface albedo over the ice‐covered polar ocean is decreased in a highly idealized numerical experiment, which leads to stronger (weaker) warming at high (low) latitudes, and forms Arctic amplification. With stronger warming at both high and low latitudes, the meridional temperature gradient decreases (increases) at midlatitudes (subtropical regions). A cyclonic wind anomaly appears and results in a weak Kuroshio current and warm interdecadal Pacific Oscillation phase. In response to Arctic‐amplified‐warming, the subtropical high weakens, leading to summer monsoon anomaly on its southside and increased westward transport of water vapor, resulting in a seesaw pattern: dry (wet) conditions in summer in North China (southwest United States, SWUS). In winter, the East Asian trough (North American high) decreases and induces decreased (increased) cold air transport to North China (SWUS) in response to Arctic‐amplified‐warming, which makes rain unlikely (likely) and exhibits a seesaw pattern. Moisture convergence always appears in a warmer SWUS winter, and increases precipitation there, which strengthens (counteracts) the precipitation anomaly led by the North American high in a warm (cold) interdecadal Pacific Oscillation phase. It may even shut down the seesaw pattern in winter in the cold interdecadal Pacific Oscillation phase.
From Exosome Glycobiology to Exosome Glycotechnology, the Role of Natural Occurring Polysaccharides

Exosomes (EXOs) are nano-sized informative shuttles acting as endogenous mediators of cell-to-cell communication. Their innate ability to target specific cells and deliver functional cargo is recently claimed as a promising theranostic strategy. The glycan profile, actively involved in the EXO biogenesis, release, sorting and function, is highly cell type-specific and frequently altered in pathological conditions. Therefore, the modulation of EXO glyco-composition has recently been considered an attractive tool in the design of novel therapeutics. In addition to the available approaches involving conventional glyco-engineering, soft technology is becoming more and more attractive for better exploiting EXO glycan tasks and optimizing EXO delivery platforms. This review, first, explores the main functions of EXO glycans and associates the potential implications of the reported new findings across the nanomedicine applications. The state-of-the-art of the last decade concerning the role of natural polysaccharides—as targeting molecules and in 3D soft structure manufacture matrices—is then analysed and highlighted, as an advancing EXO biofunction toolkit. The promising results, integrating the biopolymers area to the EXO-based bio-nanofabrication and bio-nanotechnology field, lay the foundation for further investigation and offer a new perspective in drug delivery and personalized medicine progress.
A new iridoid from Valeriana officinalis var. latiofolia

Objective To investigate the chemical constituents in the roots of Valeriana officinalis var. latiofolia collected from Guizhou province, China. Methods The compounds 1—6 were separated and purified by column chromatography with silica gel, RP C18, Sephadex LH-20, and preparative TLC. Their structures were elucidated on the basis of spectroscopic(MS, NMR, etc) methods and chemical evidences. Results Six compounds were isolated from ethyl acetate fractions of 95% ethanol extract of the root of V. officinalis var. latiofolia and identified as iridoids: valeriridoid P(1); dihydroxymaaliane(2), and madolin F(3); madolin A(4), volvalerenal B(5), and kissoone A(6), respectively. Conclusion Compound 1 is a new iridoid with two oxo-bridges, and compounds 2—6 are known compounds.
Numerical and Experimental Studies of Flame Stability in a Cavity Stabilized Hydrocarbon-Fueled Scramjet

Flame-holding in a recessed cavity in a Mach 2.5 preheated cross ow is investigated experimentally and numerically. A sensitivity analysis is conducted on the stability domain of self-sustained combustion with respect to the operating conditions. The combustor response is characterized for methane-hydrogen fuel, which is injected from six fuel injectors located on the oor of the cavity. Small amount of hydrogen addition to methane leads to signi cant increase in stability, while reducing the hydrogen beyond lean limit leads to blowout state. Going from stable combustion to blowout state by reducing the amount of hydrogen changes the overall heat release and the reaction zone shrinks, which a ects the overall ow structure inside the cavity. Computational studies of chosen test cases using a compressible large-eddy simulation (LES) approach is carried out using a new turbulent Arti cial neural network (TANN) based ltered chemical rate closure. The di erences in the combustion characteristics for stable and blow-out states are identi ed and discussed. The overall results are in good agreement with the experiments and in addition, good agreement is achieved with the available wall pressure data.