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Journal articles on the topic 'Wall-crossing phenomena'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

YAMAZAKI, MASAHITO. "CRYSTAL MELTING AND WALL CROSSING PHENOMENA." International Journal of Modern Physics A 26, no. 07n08 (2011): 1097–228. http://dx.doi.org/10.1142/s0217751x11051482.

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This paper summarizes recent developments in the theory of Bogomol'nyi–Prasad–Sommerfield (BPS) state counting and the wall crossing phenomena, emphasizing in particular the role of the statistical mechanical model of crystal melting. This paper is divided into two parts, which are closely related to each other. In the first part, we discuss the statistical mechanical model of crystal melting counting BPS states. Each of the BPS states contributing to the BPS index is in one-to-one correspondence with a configuration of a molten crystal, and the statistical partition function of the melting cr

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2

Toda, Yukinobu. "Moduli spaces of stable quotients and wall-crossing phenomena." Compositio Mathematica 147, no. 5 (2011): 1479–518. http://dx.doi.org/10.1112/s0010437x11005434.

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AbstractThe moduli space of holomorphic maps from Riemann surfaces to the Grassmannian is known to have two kinds of compactifications: Kontsevich’s stable map compactification and Marian–Oprea–Pandharipande’s stable quotient compactification. Over a non-singular curve, the latter moduli space is Grothendieck’s Quot scheme. In this paper, we give the notion of ‘ ϵ-stable quotients’ for a positive real number ϵ, and show that stable maps and stable quotients are related by wall-crossing phenomena. We will also discuss Gromov–Witten type invariants associated to ϵ-stable quotients, and investiga

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3

Nagao, Kentaro, and Masahito Yamazaki. "The Non-commutative Topological Vertex and Wall Crossing Phenomena." Advances in Theoretical and Mathematical Physics 14, no. 4 (2010): 1147–81. http://dx.doi.org/10.4310/atmp.2010.v14.n4.a3.

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4

BELLUCCI, STEFANO, and BHUPENDRA NATH TIWARI. "SCALAR MODULI, WALL CROSSING AND PHENOMENOLOGICAL PREDICTIONS." Modern Physics Letters A 27, no. 27 (2012): 1250155. http://dx.doi.org/10.1142/s0217732312501556.

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We present the scalar moduli stabilization from the perspective of the real intrinsic geometry. In this paper, we describe the physical nature of the vacuum moduli fluctuations of an arbitrary Fayet configuration. For finitely many Abelian scalar fields, we show that the framework of the real intrinsic geometry investigates the mixing between the marginal and threshold vacua. Interestingly, we find that the phenomena of wall crossing and the search of the stable vacuum configurations, pertaining to D-term and F-term scalar moduli, can be accomplished for the Abelian charges. For given vacuum e

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5

Martinez, Cristian. "Duality, Bridgeland wall-crossing and flips of secant varieties." International Journal of Mathematics 28, no. 02 (2017): 1750011. http://dx.doi.org/10.1142/s0129167x17500112.

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Let [Formula: see text] denote the [Formula: see text]-uple Veronese surface. After studying some general aspects of the wall-crossing phenomena for stability conditions on surfaces, we are able to describe a sequence of flips of the secant varieties of [Formula: see text] by embedding the blow-up [Formula: see text] into a suitable moduli space of Bridgeland semistable objects on [Formula: see text].

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6

Sułkowski, Piotr. "BPS States, Crystals, and Matrices." Advances in High Energy Physics 2011 (2011): 1–52. http://dx.doi.org/10.1155/2011/357016.

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We review free fermion, melting crystal, and matrix model representations of wall-crossing phenomena on local, toric Calabi-Yau manifolds. We consider both unrefined and refined BPS counting of closed BPS states involving D2- and D0-branes bound to a D6-brane, as well as open BPS states involving open D2-branes ending on an additional D4-brane. Appropriate limit of these constructions provides, among the others, matrix model representation of refined and unrefined topological string amplitudes.

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Francis, J., and D. Parker. "Numerical simulation of observed flow phenomena in the supply and control ports and associated feed channels of a mini-vortex amplifier." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 5 (2015): 756–81. http://dx.doi.org/10.1177/0954406215573599.

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The trajectory and reach of jets issuing from tangential control ports at the periphery of a vortex amplifier's swirl chamber depend largely on design geometry, size and pressures applied. Excessive control port pressure causes these jets to extend too far across the face of the radial supply ports, to impact on the opposing supply port wall whereupon, they bifurcate to create back diffusion of control port flow along the supply port channels. Flow through vortex amplifier geometry is simulated using a baseline Reynolds stress turbulence model with Computational Fluid Dynamics (CFX) automatic

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8

Yang, Tao, Yunkang Rao, Honggang Wu, Junyun Zhang, Hao Lei, and Haojiang Ding. "Dynamic Response of Parallel Overlapped Tunnel under Seismic Loading by Shaking Table Tests." Shock and Vibration 2021 (June 7, 2021): 1–15. http://dx.doi.org/10.1155/2021/2535762.

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Potential earthquake-induced damage to overlapped tunnels probably occurs during the operation and maintenance of mountain tunnel engineering, especially in the seismically active zone. This study investigated the dynamic response and the failure characteristics of the parallel overlapped tunnel under seismic loadings by employing shaking table tests. The failure mode of the parallel overlapped tunnels was analyzed through macroscopic test phenomena. The dynamic responses of the surrounding rock and tunnel lining were evaluated by acceleration and dynamic strain, respectively. In particular, w

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9

Wang, Lican, Yilong Zhao, Qiancheng Wang, Yuxin Zhao, Ruoling Zhang, and Li Ma. "Three-dimensional characteristics of crossing shock wave/turbulent boundary layer interaction in a double fin with and without micro-ramp control." AIP Advances 12, no. 9 (2022): 095309. http://dx.doi.org/10.1063/5.0102986.

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The three-dimensional (3D) interactions between crossing shock waves and a turbulent boundary layer (CSWBLI) inside a symmetric double fin are experimentally studied using nanoparticle-based planar laser scattering, supersonic particle image velocimetry, and surface oil visualization. The possibility of controlling the separated flow generated by CSWBLI is considered by employing micro-ramp vortex generators. First, the fractal dimension, velocity profile, and logarithmic law of the incoming turbulent boundary layer at Mach number 2.8 are examined. Then, the flow structure and velocity distrib

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10

Bullimore, Mathew, Andrea Ferrari, and Heeyeon Kim. "The 3d twisted index and wall-crossing." SciPost Physics 12, no. 6 (2022). http://dx.doi.org/10.21468/scipostphys.12.6.186.

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We study the twisted index of 3d \mathcal{N}=2𝒩=2 supersymmetric gauge theories on S^1 \times \SigmaS1×Σ in the presence of a real FI parameter deformation. This parameter induces a 1d FI parameter for the effective supersymmetric quantum mechanics on S^1S1. Using supersymmetric localisation, the twisted index can be expressed as a contour integral. We show that the contour prescription is modified in the presence of the 1d FI parameter, leading to wall-crossing phenomena for the twisted index. In particular, we derive a general wall-crossing formula for abelian gauge theories. We also examine

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11

Sektnan, Lars Martin, and Carl Tipler. "Analytic K-semistability and local wall-crossing." Annals of Global Analysis and Geometry 68, no. 2 (2025). https://doi.org/10.1007/s10455-025-10011-6.

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Abstract For a small polarised deformation of a constant scalar curvature Kähler manifold, under some cohomological vanishing conditions, we prove that K-polystability along nearby polarisations implies the existence of a constant scalar curvature Kähler metric. In this setting, we reduce K-polystability to the computation of the classical Futaki invariant on the cscK degeneration. Our result holds on specific families and provides local wall-crossing phenomena for the moduli of cscK manifolds when the polarisation varies.

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12

Galakhov, Dmitry, Alexei Morozov, and Nikita Tselousov. "Wall-crossing effects on quiver BPS algebras." Journal of High Energy Physics 2024, no. 5 (2024). http://dx.doi.org/10.1007/jhep05(2024)118.

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Abstract BPS states in supersymmetric theories can admit additional algebro-geometric structures in their spectra, described as quiver Yangian algebras. Equivariant fixed points on the quiver variety are interpreted as vectors populating a representation module, and matrix elements for the generators are then defined as Duistermaat-Heckman integrals in the vicinity of these points. The well-known wall-crossing phenomena are that the fixed point spectrum establishes a dependence on the stability (Fayet-Illiopolous) parameters ζ, jumping abruptly across the walls of marginal stability, which div

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13

Alim, Murad, Arpan Saha, Jörg Teschner, and Iván Tulli. "Mathematical Structures of Non-perturbative Topological String Theory: From GW to DT Invariants." Communications in Mathematical Physics, November 27, 2022. http://dx.doi.org/10.1007/s00220-022-04571-y.

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AbstractWe study the Borel summation of the Gromov–Witten potential for the resolved conifold. The Stokes phenomena associated to this Borel summation are shown to encode the Donaldson–Thomas (DT) invariants of the resolved conifold, having a direct relation to the Riemann–Hilbert problem formulated by Bridgeland (Invent Math 216(1), 69–124, 2019). There exist distinguished integration contours for which the Borel summation reproduces previous proposals for the non-perturbative topological string partition functions of the resolved conifold. These partition functions are shown to have another

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14

Gupta, Varun, and K. Narayan. "M5-brane prongs, string soliton bound states and wall-crossing." SciPost Physics Core 8, no. 1 (2025). https://doi.org/10.21468/scipostphyscore.8.1.004.

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We study Abelian M5-brane field configurations representing BPS bound states of self-dual string solitons whose locations correspond to the endlines of M2-branes ending on the M5-branes. The BPS equations are obtained from appropriate Bogomolny completion of the effective Abelian low energy functional with two transverse scalars, using two vectors representing the directions along which these endline strings extend. Then we impose boundary conditions on the scalars near the string soliton cores. This leads to a molecule-like equilibrium structure of two non-parallel string solitons at fixed tr

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15

Assel, Benjamin, Stefano Cremonesi, and Matthew Renwick. "Quantized Coulomb branches, monopole bubbling and wall-crossing phenomena in 3d $$ \mathcal{N} $$ = 4 theories." Journal of High Energy Physics 2020, no. 4 (2020). http://dx.doi.org/10.1007/jhep04(2020)213.

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16

Galakhov, Dmitry, Wei Li, and Masahito Yamazaki. "Shifted quiver Yangians and representations from BPS crystals." Journal of High Energy Physics 2021, no. 8 (2021). http://dx.doi.org/10.1007/jhep08(2021)146.

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Abstract We introduce a class of new algebras, the shifted quiver Yangians, as the BPS algebras for type IIA string theory on general toric Calabi-Yau three-folds. We construct representations of the shifted quiver Yangian from general subcrystals of the canonical crystal. We derive our results via equivariant localization for supersymmetric quiver quantum mechanics for various framed quivers, where the framings are determined by the shape of the subcrystals.Our results unify many known BPS state counting problems, including open BPS counting, non-compact D4-branes, and wall crossing phenomena

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17

Ventosa-Molina, Jordi, Moritz Kreuseler, and Jochen Fröhlich. "From linear to rotating compressor cascade: Assessment of data transferability." Physics of Fluids 37, no. 5 (2025). https://doi.org/10.1063/5.0267455.

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Improving the efficiency of gas turbines requires a detailed understanding of secondary flow phenomena, including tip leakage vortices (TLVs) and corner separation. While linear compressor cascades are commonly used for simplifying flow studies, their ability to replicate flow features in annular rotating cascades remains insufficiently explored. This study evaluates the transferability of flow characteristics between these configurations using wall-resolving large eddy simulations for identical blade geometries. Specifically, the effects of cascade geometry, relative end wall motion, and rota

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18

Den, Harder N., S. Brezinsek, T. Pütterich, et al. "ELM-resolved divertor erosion in the JET ITER-Like Wall." January 15, 2016. https://doi.org/10.1088/0029-5515/56/2/026014.

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Abstract Tungsten erosion in H-mode plasmas is quantified in the outer divertor of the JET ITER-Like Wall environment with optical emission spectroscopy on the 400.9 nm atomic neutral tungsten line. A novel cross-calibration procedure is developed to link slow, high spectral resolution spectroscopy and fast photomultiplier tube measurements in order to obtain ELM-resolved photon fluxes. Inter-ELM W erosion is exclusively impurity sputtering by beryllium because of the high sputter threshold for deuterons. Low beryllium concentrations resulted in low inter-ELM sputter yields of around 10−4 with

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19

Jin, Yuchen, Jing Li, Shiyang Liu, Gongqi Cao, and Jianlin Liu. "A worm-inspired robot based on origami structures driven by the magnetic field." Bioinspiration & Biomimetics, May 15, 2023. http://dx.doi.org/10.1088/1748-3190/acd59e.

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Abstract With the rapid development of origami technology, worm-inspired origami robots have attracted tremendous interest owing to their colourful locomotion behaviours, such as creeping, rolling, climbing and obstacle crossing. In the present study, we aim to engineer a worm-inspired robot based on knitting process with paper, which could realize complicated functions associated large deformation and exquisite locomotion patterns. At first we fabricate the backbone of the robot by using the paper-knitting technique. The experiment shows that the backbone of the robot can endure significant d

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20

Capizzano, Francesco, and Triyantono Sucipto. "Studying the deployment of high-lift devices by using dynamic immersed boundaries." Aircraft Engineering and Aerospace Technology ahead-of-print, ahead-of-print (2021). http://dx.doi.org/10.1108/aeat-12-2020-0325.

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Purpose This paper aims to describe a research effort towards the comprehension of the unsteady phenomena due to the deployment of high-lift devices at approach/landing conditions. Design/methodology/approach The work starts from a preexisting platform based on an immersed boundary (IB) method whose capabilities are extended to study compressible and viscous flows around moving/deforming objects. A hybrid Lagrangian-Eulerian approach is designed to consider the motion of multiple bodies through a fixed Cartesian mesh. That is, the cells’ volumes do not move in space but rather they observe the

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21

Miletic, Sasa. "Acting Out: "Cage Rage" and the Morning After." M/C Journal 22, no. 1 (2019). http://dx.doi.org/10.5204/mcj.1494.

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Introduction“Cage rage” is one of the most famous Internet memes (Figure 1) which made Nicolas Cage's stylised and sometimes excessive acting style very popular. His outbursts became a subject of many Youtube videos, supercuts (see for instance Hanrahan) and analyses, which turned his rage into a pop-cultural phenomenon. Cage’s outbursts of rage and (over)acting are, according to him (Freeman), inspired by German expressionism as in films like The Cabinet of Dr. Caligari (1920). How should this style of acting and its position within the context of the Hollywood industry today be read in socie

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22

Emmerson, Parker Yaohushuason. "Foundations of Categorical-Homotopical Operator Algebras, Daisy Network Dynamics, and Anterolateral Spectral Algebra." Journal of Liberated Mathematics, May 25, 2025. https://doi.org/10.5281/zenodo.15509974.

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This paper introduces and formalizes six novel mathematical frameworks synthesizing categorical, homotopical, operator-algebraic, and spectral constructs with emergent symmetry and criticality. We define \emph{ultranaut operators} as higher-categorical homotopy-enriched transitions; construct spectral decompositions over $\Sigma$-enriched matrices; develop integral operator algebra formalism; introduce the \emph{daisy network}, a self-similar symmetry-generating topological graph; analyze paradoxical scale-interaction criticality ($1 \ll Q \ll 1$); and establish \emph{anterolateral spectral al

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23

Ryder, Paul, and Jonathan Foye. "Whose Speech Is It Anyway? Ownership, Authorship, and the Redfern Address." M/C Journal 20, no. 5 (2017). http://dx.doi.org/10.5204/mcj.1228.

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In light of an ongoing debate over the authorship of the Redfern address (was it then Prime Minister Paul Keating or his speechwriter, Don Watson, who was responsible for this historic piece?), the authors of this article consider notions of ownership, authorship, and acknowledgement as they relate to the crafting, delivery, and reception of historical political speeches. There is focus, too, on the often-remarkable partnership that evolves between speechwriters and those who deliver the work. We argue that by drawing on the expertise of an artist or—in the case of the article at hand—speechwr

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24

Richardson, Nicholas. "Wandering a Metro: Actor-Network Theory Research and Rapid Rail Infrastructure Communication." M/C Journal 22, no. 4 (2019). http://dx.doi.org/10.5204/mcj.1560.

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IntroductionI have been studying the creation of Metro style train travel in Sydney for over a decade. My focus has been on the impact that media has had on the process (see Richardson, “Curatorial”; “Upheaval”; “Making”). Through extensive expert, public, and media research, I have investigated the coalitions and alliances that have formed (and disintegrated) between political, bureaucratic, news media, and public actors and the influences at work within these actor-networks. As part of this project, I visited an underground Métro turning fifty in Montreal, Canada. After many years studying t

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25

Wilken, Rowan. "Walkie-Talkies, Wandering, and Sonic Intimacy." M/C Journal 22, no. 4 (2019). http://dx.doi.org/10.5204/mcj.1581.

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IntroductionThis short article examines contemporary artistic use of walkie-talkies across two projects: Saturday (2002) by Sabrina Raaf and Walk That Sound (2014) by Lukatoyboy. Drawing on Dominic Pettman’s notion of sonic intimacy, I argue that both artists incorporate walkie-talkies as part of their explorations of mediated wandering, and in ways that seek to capture sonic ambiances and intimacies. One thing that is striking about both these works is that they rethink what’s possible with walkie-talkies; both artists use them not just as low-tech, portable devices for one-to-one communicati

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26

Kuang, Lanlan. "Staging the Silk Road Journey Abroad: The Case of Dunhuang Performative Arts." M/C Journal 19, no. 5 (2016). http://dx.doi.org/10.5204/mcj.1155.

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The curtain rose. The howling of desert wind filled the performance hall in the Shanghai Grand Theatre. Into the center stage, where a scenic construction of a mountain cliff and a desert landscape was dimly lit, entered the character of the Daoist priest Wang Yuanlu (1849–1931), performed by Chen Yizong. Dressed in a worn and dusty outfit of dark blue cotton, characteristic of Daoist priests, Wang began to sweep the floor. After a few moments, he discovered a hidden chambre sealed inside one of the rock sanctuaries carved into the cliff.Signaled by the quick, crystalline, stirring wave of sou

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27

Ware, Ianto. "Andrew Keen Vs the Emos: Youth, Publishing, and Transliteracy." M/C Journal 11, no. 4 (2008). http://dx.doi.org/10.5204/mcj.41.

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This article is a comparison of two remarkably different takes on a single subject, namely the shifting meaning of the word ‘publishing’ brought about by the changes in literacy habits related to Web 2.0. One the one hand, we have Andrew Keen’s much lambasted 2007 book The Cult of the Amateur, which is essentially an attempt to defend traditional gatekeeper models of cultural production by denigrating online, user-generated content. The second is Spin journalist Andy Greenwald’s Nothing Feels Good, focusing on the Emo subculture of the early 2000s and its reliance on Web 2.0 as an integral med

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28

Hanley, Janis. "Spinning Circle at the Mill." M/C Journal 26, no. 6 (2023). http://dx.doi.org/10.5204/mcj.2936.

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An artful Facebook post after a research event, a spinning circle held at a state heritage listed former mill, is used to explore the intersection of craftivism and the politics around the future of this site. This article takes a new materialism approach to explore the dynamic interactions (intra-actions) and shifting power relations around place (territorialisations). Both the spinning circle and the post were a gentle activism, or as Greer (12) describes it, craftivism, whose essence lies in ‘creating something that gets people to ask questions’. In 2018, I conducted the research event, the

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