bluuebunny/crossref_metadata_2025_split huggingface dataset:
RON‐based cross‐chain routing optimization strategy in metaverse
Authors: Huang Junjie , Tan Liang , Xiao Jianmei 
Published: June 2024

AbstractMetaverse is a new ecology that integrates the digital world with the physical world, generates a mirror image of the real world based on digital twin technology, and guarantees the fairness of the virtual world through the trusted mechanism of blockchain. Cross‐chain communication technology is the key to realizing data circulation and collaborative processing between blockchains, which provides the communication foundation for the massive connection of blockchains in the metaverse. The current cross‐chain communication mode is dominated by direct‐connect routing, leading to network congestion and high propagation delay once the direct‐connect link fails and cannot be recovered quickly. To optimize direct‐connect routing, this paper proposed a cross‐chain routing optimization strategy based on RON (Resilient Overlay Network), that is, Cross‐Chain_RON, which firstly applies RON to reconstruct the direct‐connect routing model, and then selects the optimal link through the shortest‐path algorithm and policy routing, and combines with the RON performance database to improve the data transmission efficiency. Finally, the two communication modes were simulated by simulation tools. The experiments show that Cross‐Chain_RON outperforms the direct‐connect routing in terms of latency, rate of successful data transmission, and throughput in poor network environments, but at the expense of a certain amount of system overhead.
RETRACTED: An improved hybrid network‐on‐chip with flexible topology and frugal routing
Authors: Ijaz Qaiser , Bourennane El‐Bay 
Published: June 2024

AbstractThis study proposes an improved Hybrid Network‐on‐Chip (HNoC) with a flexible topology and frugal routing. The key advantage is in terms of latency and saturation because of the optimal use of RF‐based wireless networks. The performance improvement is achieved by managing the communication resources through a radio bandwidth allocation algorithm and a frugal routing algorithm that optimizes RF consumption by choosing between wired and wireless networks. The architecture of a hybrid network‐on‐chip has been modeled in SystemC by extending IP from the SoCLib library and Noxim simulator. The distinction of the flexible topology is exhibited by an 11% reduced delay compared to the fixed topology and a 31% shorter delay compared to a wired mesh network for lower transaction rates. A 21% increase in saturation has also established the superiority of the frugal routing algorithm. The hybrid design can be useful in addressing the limitations of purely wireless design, and the frugal routing algorithm can be seen as a complex topology for increasing the size of on‐chip networks.
Neurobiologie und Wirkmodelle zu Psychedelika
Authors: Herwig Uwe , Avram Mihai , Borgwardt Stefan , Aicher Helena D. 
Published: June 2024

ZUSAMMENFASSUNGZur Beantwortung der Frage, ob Psychedelika eine therapeutische Wirkung bei psychischen Erkrankungen aufweisen, ist entscheidend, sich mit möglichen Wirkmechanismen auseinanderzusetzen. Solche können auf psychopharmakologischer, neurobiologischer, neurosystemischer und psychotherapeutischer Ebene beschrieben werden. Neben der klassischen Pharmakologie befasst sich der Artikel mit neurobiologischen Befunden zur Emotionsregulation, der Wahrnehmungsverarbeitung und dem Ruhemodus-Netzwerk unter dem Einfluss von Psychedelika. Hieraus können Hypothesen zur Wirkweise aus einer neurodynamischen Perspektive abgeleitet werden. Letztlich wird der Übergang zu psychotherapeutischen Wirkfaktoren beschrieben. Eine neurobiologisch und psychotherapeutisch integrative Betrachtung der Psychedelikawirkung kann helfen, gezielte psychotherapeutische Interventionen bzw. eine psychotherapeutische Basis für die Einbettung einer Psychedelikaanwendung zu gestalten.
Geschichte der Anwendung von Psychedelika
Authors: Herwig Uwe 
Published: June 2024

ZUSAMMENFASSUNGDie menschliche Nutzung heute als psychedelisch bezeichneter Substanzen erfolgt bereits seit Jahrtausenden. Die wissenschaftliche Untersuchung, zunächst pharmakologisch, später psychiatrisch, setzte ab Ende des 19. Jahrhunderts ein. Die ersten Überlegungen zur klinischen Anwendung insbesondere zur Unterstützung von Psychotherapien wurden ab Mitte des 20. Jahrhunderts umgesetzt und erlebten eine breitere Anwendung in den 1950er- und 1960er-Jahren. Nach Entlegalisierung ab den 1970er-Jahren waren bis Ende des 20. Jahrhunderts nur wenige Studien insbesondere zu neurobiologischen Grundlagen erfolgt. Ab den 2000er-Jahren kam es zu neuen klinischen Studien mit einem steilen Anstieg in den letzten Jahren, besonders bezüglich der Anwendung von Psilocybin bei Depressionen. Heute findet eine breitere fachliche und gesellschaftliche Diskussion zu dem Thema statt und die Frage einer Einführung von Psychedelika in die klinische Psychiatrie in Deutschland steht im Raum.
Encoding control system for twin-field quantum key distribution
Authors: Zheng Xin-Yang , Lin Jin , Li Yu-Huai , Wang Min-Yan , Liao Sheng-Kai , Peng Cheng-Zhi 
Published: June 2024

The Twin-Field Quantum Key Distribution (TF-QKD) protocol has the potential to realize secure key distribution over extremely long distances, which is an important technique for realizing a global quantum network. Compared to the conventional BB84 protocol, practical TF-QKD and its variant protocols require an accurate phase modulation to at least 16 different values with randomized encoding. In this work, we developed an encoding control system for TF-QKD. Optical pulses with five different intensities and 16 different phases can be modulated with a clock frequency of 100 MHz with a field programmable gate array based arbitrary waveform generator (AWG). With the assistance of DDR4 memory, waveforms exceeding 200 ms in length can be output simultaneously on 4 pairs of differential channels, making the random number pairing between two different encoding systems close to the expected ratio when using cyclic random numbers for experimental demonstration. The AWG boasts a long-term amplitude stability better than 0.03% and supports seamless concatenation and cyclic output of waveforms, demonstrating a strong and sustained performance in long-duration experiments. Sending-or-not-sending TF-QKD was demonstrated with the encoding control system, with a secure key rate of 1.33 × 10−5 per pulse under the total channel loss of ∼32 dB.
Social identity construction in expert-lay dialogue on Facebook
Authors: Tereszkiewicz Anna 
Published: June 2024

Abstract
The paper focuses on identity construction on the Facebook profiles of medical professionals. Drawing on existing
conceptualisations of identity and proximity, the study explores how five Polish medical experts construct their social identity
and create affinity spaces in their interaction with an audience. The analysis shows that affinity spaces are established through
the reduction of social distance and epistemic asymmetry between the professionals and their audience. Increasing emotional
proximity and stressing the proximity of experience between the interlocutors also contributes to the creation of affinity.
Affinity spaces are co-constructed in dialogue with the profile visitors through e.g. deictic resources indicating proximity,
personal stories, recontextualisation of medical concepts, expressiveness, and the stressing of commonalities between the
orthopaedic surgeons and their followers.
Viral peer advice
Authors: Stvan Laurel Smith 
Published: June 2024

Abstract
By examining a collection of health-related memes, I propose ways to categorize the illocutionary force of memes
functioning as the speech act of advice. 200 English-language memes were gathered in the period 2018–2023 through Google image
searches. I found the affiliative and disaffiliative strategies that Placencia (2012)
described within Yahoo! Respuestas advice exchanges; meme multimodality, however, offered additional versions of
these strategies: characters generated affiliation or disaffiliation and more humor appeared in affiliative and disaffiliative
moves. I highlight four characteristics of advising in memes: the speech act is performed indirectly; both characters and wordplay
can create humor; peer advisors must signal what authorizes them to give advice; and advice deploys mythbusting. Thus, memes align
interlocutors within vernacular online conversations.
Tightly coupled visual-inertial fusion with image enhancement for robust positioning
Authors: Fu Zhumu , Shi Yongzhe , Si Pengju , Gao Song , Yang Yi 
Published: June 2024

Abstract
Traditional vision-based inertial odometry suffers from significant visual degradation, which substantially impacts state estimation in challenging lighting environments. Thermal imaging cameras capture images based on the thermal radiation of objects, rendering them impervious to lighting variations. However, integrating thermal infrared data into conventional visual odometry poses challenges due to its low texture, poor contrast, and high noise levels. In this paper, we propose a tightly coupled approach that seamlessly integrates information from visible light cameras, thermal imaging cameras, and inertial measurement units. First, we employ adaptive bilateral filtering and Sobel gradient enhancement to smooth infrared images, thereby reducing noise and enhancing edge contrast. Second, we leverage the Sage-Husa adaptive filter in conjunction with iterative Kalman filtering (IEKF) to effectively mitigate the impact of non-Gaussian noise on the system. Finally, we conduct comprehensive evaluations of the proposed system using both open datasets and real-world experiments across four distinct scenarios: normal lighting, low-light conditions, low-light conditions with camera shake, and challenging lighting environments. Comparative analysis reveals that our method outperforms IEKF, yielding a reduction in localization error measured by root mean square error by 58.69%, 57.24%, 60.23%, and 30.87% in these respective scenarios.
Trajectory planning for AGV based on the improved artificial potential field- A* algorithm
Authors: Liu Wei , Chen Linfeng , Wang Rongjun , Wan Yidong 
Published: June 2024

Abstract
There are many redundant nodes and inflection points in the path planned by the traditional A* algorithm, leading to the inefficient trajectory planning of the automatic guided vehicle (AGV) in the multi-static obstacles environment. The artificial potential field (APF) algorithm suffers from the problem of unreachable objectives and falling into optimal local value. This article studies the trajectory optimization of AGVs to improve the trajectory planning algorithm’s iteration efficiency and shorten the trajectory’s total length. This article establishes the forward kinematic and unified robot description format model of the AGV and proposes the APF-A* algorithm for trajectory planning. The search cost and the number of turns are effectively optimized. The article simulates the APF-A* algorithm, the results are compared with the trajectory before optimization, and the optimized time is 60% less than that before optimization. The experimental platform of AGV trajectory planning is built, and the algorithm verification experiment of AGV trajectory planning is carried out. The experimental results show that the algorithm studied in this article achieves path smoothing and trajectory length optimization.
Investigation of intra-fractionated range guided adaptive proton therapy (RGAPT): II. Range-shift compensated on-line treatment adaptation and verification
Authors: Chen Mingli , Yang Dongxu , Zhu Xiaorong R , Ma Lin , Grosshans David R , Shao Yiping , Lu Weiguo 
Published: June 2024

Abstract
We previously proposed range-guided adaptive proton therapy (RGAPT) that uses mid-range treatment beams as probing beams and intra-fractionated range measurements for online adaptation. In this work, we demonstrated experimental verification and reported the dosimetric accuracy for RGAPT. A STEEV phantom was used for the experiments, and a 3 × 3 × 3 cm3 cube inside the phantom was assigned to be the treatment target. We simulated three online range shift scenarios: reference, overshoot, and undershoot, by placing upstream Lucite sheets, 4, 0, and 8 that corresponded to changes of 0, 6.8, and −6.8 mm, respectively, in water-equivalent path length. The reference treatment plan was to deliver single-field uniform target doses in pencil beam scanning mode and generated on the Eclipse treatment planning system. Different numbers of mid-range layers, including single, three, and five layers, were selected as probing beams to evaluate beam range (BR) measurement accuracy in positron emission tomography (PET). Online plans were modified to adapt to BR shifts and compensate for probing beam doses. In contrast, non-adaptive plans were also delivered and compared to adaptive plans by film measurements. The mid-range probing beams of three (5.55MU) and five layers (8.71MU) yielded accurate range shift measurements in 60 s of PET acquisition with uncertainty of 0.5 mm while the single-layer probing (1.65MU) was not sufficient for measurements. The adaptive plans achieved an average gamma (2%/2 mm) passing rate of 95%. In contrast, the non-adaptive plans only had an average passing rate of 69%. RGAPT planning and delivery are feasible and verified by the experiments. The probing beam delivery, range measurements, and adaptive planning and delivery added a small increase in treatment delivery workflow time but resulted in substantial dose improvement. The three-layer mid-range probing was most suitable considering the balance of high range measurement accuracy and the low number of probing beam layers.
Collapsing domain wall networks: impact on pulsar timing arrays and primordial black holes
Authors: Ferreira Ricardo Z. , Notari Alessio , Pujolàs Oriol , Rompineve Fabrizio 
Published: June 2024

Abstract
Unstable domain wall (DW) networks in the early universe are cosmologically viable and can emit a large amount of gravitational waves (GW) before annihilating. As such, they provide an interpretation for the recent signal reported by Pulsar Timing Array (PTA) collaborations. A related important question is whether such a scenario also leads to significant production of Primordial Black Holes (PBH).
We investigate both GW and PBH production using 3D numerical simulations in an expanding background, with box sizes up to N = 3240,
including the annihilation phase. We find that:
i) the network decays exponentially, i.e. the false vacuum volume drops as ∼ exp(-η
3), with η the conformal time;
ii) the GW spectrum is larger than traditional estimates by more than one order of magnitude, due to a delay between DW annihilation and the sourcing of GWs. We then present a novel semi-analytical method to estimate the PBH abundances: rare false vacuum pockets of super-Hubble size collapse to PBHs if their energy density becomes comparable to the background when they cross the Hubble scale. Smaller (but more abundant) pockets will instead collapse only if they are close to spherical. This introduces very large uncertainties in the final PBH abundance. The first phenomenological implication is that the DW interpretation of the PTA signal is compatible with observational constraints on PBHs, within the uncertainties. Second, in a different parameter region, the dark matter can be entirely in the form of asteroid-mass PBHs from the DW collapse. Remarkably, this would also lead to a GW background in the observable range of LIGO-Virgo-KAGRA and future interferometers, such as LISA and Einstein Telescope.
Efficient fidelity estimation: alternative derivation and related applications
Authors: Starke Diego S , Basso Marcos L W , Maziero Jonas 
Published: June 2024

Abstract
In [Phys. Rev. A
107 012427 (2023)], Baldwin and Jones prove that Uhlmann–Jozsa’s fidelity between two quantum states ρ and σ, i.e.,

F
(
ρ
,
σ
)

≔

Tr

ρ

σ

ρ

2

, can be written in a simplified form as

F
(
ρ
,
σ
)
=

Tr

ρ
σ

2

. In this article, we give an alternative proof of this result, using a function power series expansion and the properties of the trace function. Our approach not only reinforces the validity of the simplified expression but also facilitates the exploration of novel dissimilarity functions for quantum states and more complex trace functions of density operators.
Modeling of plasma facing component erosion, impurity migration, dust transport and melting processes at JET-ILW
Authors: Borodkina I. , Borodin D.V. , Douai D. , Romazanov J. , Pawelec E. , de la Cal E. , Kumpulainen H. , Ratynskaia S. , Vignitchouk L. , Tskhakaya D. , Kirschner A. , Lazzaro E. , Uccello A. , Brezinsek S. , Dittmar T. , Groth M. , Huber A. , Thoren E. , Gervasini G. , Ghezzi F. , Causa F. , Widdowson A. , Lawson K. , Matveev D. , Wiesen S. , Laguardia L. ,   JET Contributors
Published: June 2024

AbstractAn overview of the modeling approaches, validation methods and recent main results of analysis and modeling activities related to the plasma-surface interaction (PSI) in JET-ILW experiments, including the recent H/D/T campaigns, is presented in this paper. Code applications to JET experiments improve general erosion/migration/retention prediction capabilities as well as various physics extensions, for instance a treatment of dust particles transport and a detailed description of melting and splashing of PFC induced by transient events at JET. 2D plasma edge transport codes like the SOLPS-ITER code as well as PSI codes are key to realistic description of relevant physical processes in power and particle exhaust. Validation of the PSI and edge transport models across JET experiments considering various effects (isotope effects, first wall geometry, including detailed 3D shaping of plasma-facing components, self-sputtering, thermo-forces, physical and chemically assisted physical sputtering formation of W and Be hydrides) is very important for predictive simulations of W and Be erosion and migration in ITER as well as for increasing quantitative credibility of the models. JET also presents a perfect test-bed for the investigation and modeling of melt material dynamics and its splashing and droplet ejection mechanisms. We attribute the second group of processes rather to transient events as for the steady state and, thus, treat those as independent additions outside the interplay with the first group.
High energy cooling
Authors: Lebedev Valeri 
Published: June 2024

Abstract
The paper considers methods of heavy particle cooling for
high energy colliders in the energy range of the RHIC-based
ep-collider. There are two major methods of the cooling — the
electron cooling and stochastic cooling. The latter can be
additionally separated on the microwave stochastic cooling, the
optical stochastic cooling (OSC) and the coherent electron cooling
(CEC). OSC and CEC are essentially extensions of microwave
stochastic cooling operating in 1–10 GHz frequency range to the
optical frequencies corresponding to 30–300 THz frequency
range. The OSC uses undulators as a pickup and a kicker, and an
optical amplifier for signal amplification, while the CEC uses an
electron beam for all these functions.
Particles with constant speed and random velocity in 3+1 space-time: separation of the space variables
Authors: Serva Maurizio 
Published: June 2024

Abstract
We consider a particle in 3+1 space-time dimensions which constantly moves at speed of light c, randomly changing its velocity which can be represented by a point on the surface of a sphere of radius c. The velocity performs an isotropic Wiener process on this surface so that the velocity trajectories are almost everywhere continuous although not differentiable, while the position trajectories are continuous and differentiable. Together with the process that describes the particle in the ‘rest frame’, where the diffusion of velocity on the surface of the sphere is isotropic, the entire family of anisotropic processes which result from Lorentz boosts is also described. The focus of this article is on stochastic evolution in space. We identify a reduced set of variables whose stochastic evolution is autonomous from the remaining variables, but, nevertheless, carry all the relevant information concerning the spatial properties of the process. The associated stochastic equations as well the Forward Kolmogorov equation are considerably simplified compared to those of the complete set of position and velocity variables.
Exploring cooperative hunting dynamics and PRCC analysis: insights from a spatio-temporal mathematical model
Authors: Santra Nirapada , Saha Sangeeta , Samanta Guruprasad 
Published: June 2024

Abstract
The proposed mathematical model explores the intricate dynamics of a predator-prey system involving prey infection and cooperative hunting of predators. The model incorporates habitat complexity, emphasizing its influence on ecological interactions. The well-posedness of the system has rigorously been examined in a temporal setting and also conducted stability analysis. The bifurcation analysis reveals the existence of several local bifurcations on the system, namely transcritical bifurcation, saddle-node bifurcation, and Hopf bifurcation. Furthermore, these investigations delineate the two-dimensional bifurcations including Bogdanov–Takens and cusp bifurcations for different parametric combinations. With suitable choices of parameter values, the proposed model exhibits diverse dynamic phenomena, including bistable and tri-stable behavior. Latin hypercube sampling is utilized to conduct uncertainty analysis on input parameters, aiming to observe their effects on population dynamics. Subsequently, Kendall’s tau and Spearman’s rank correlation coefficients are also computed to investigate the impact of these uncertainties on the population. In the later part, a spatio-temporal system is proposed with two-dimensional diffusion terms to obtain the conditions for Turing instability. Numerical simulations have been conducted to observe the emergence of spatial patterns and the impact of predator cooperation in these patterns. The study provides valuable insights into the dynamics of complex ecological systems, emphasizing the interplay of spatial and temporal factors in shaping population dynamics and predator-prey interactions.
A comprehensive review of atomically thin silicates and their applications
Authors: Mahapatra Preeti Lata , Costin Gelu , Galvao Douglas S , Lahiri Basudev , Glavin Nicholas , Roy Ajit K , Ajayan P M , Tiwary Chandra Sekhar 
Published: June 2024

Abstract
Silicate is one of the most abundant minerals on Earth’s crust and a sustainable source of two-dimensional (2D) complex oxides. In this review, we discuss the research progress of layered and non-layered 2D silicates, their comparison with conventional 2D materials, and a brief discussion on 2D silicate applications. The review begins with thoroughly examining synthesis strategies, emphasizing the various methods used to create layered and non-layered 2D silicates. The discussions then address the distinctive features of these materials, emphasizing their physicochemical characteristics. Furthermore, the review outlines recent breakthroughs in utilizing 2D silicates in electrical and memory devices, energy harvesting, energy storage, sensors, optoelectronics, water treatment, wound healing, cancer theranostics, bacterial ablation, fire retardancy, etc. By summarizing the most recent research findings in the field of 2D silicates and providing an overview of silicate evolution, this review intends to present a comprehensive resource for researchers interested in the diverse and fascinating area of 2D silicates.