bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatio-temporal patterns of non-autonomous systems on hypergraphs: Turing and Benjamin–Feir mechanisms
Authors: Wang Wen , Liu Shutang 
Published: January 2023

Abstract
This paper examines the Turing patterns and the spatio-temporal chaos of non-autonomous systems defined on hypergraphs. The analytical conditions for Turing instability and Benjamin–Feir instability are obtained by linear stability analysis using new comparison principles. The comparison with pairwise interactions is presented to reveal the effect of higher-order interactions on pattern formation. In addition, numerical simulations due to different non-autonomous mechanisms, such as time-varying diffusion coefficients, time-varying reaction kinetics and time-varying diffusion coupling are provided respectively, which verifies the efficiency of theoretical results.
Novel solutions of (2+1) dimensional modified Bogoyavlenskii’s breaking soliton equation with variable coefficients
Authors: Wang Shaofu 
Published: January 2023

Abstract
In this paper, by using the homogeneous equilibrium method, the exact solutions of a modified Bogoyavlenskii’s breaking soliton equation are derived and the soliton solutions with arbitrary functions are constructed. Then, the basic law of interaction between the different solitons are revealed and some new local structures are addressed and discussed. The periodic solitons, parabolic solitons and folded solitons of arbitrary shape propagating with variable speed are considered. It is helpful not only to verify the numerical solution and analyze the stability of the solution, but also to understand the dynamics of the high dimensional nonlinear wave field.
A new general approach for obtaining matrix product operators for spin Hamiltonians with periodic boundary conditions
Authors: Solanki Payal D , Ramkarthik M S 
Published: January 2023

Abstract
This article concerns the matrix product operators for one-dimensional spin Hamiltonians under open and periodic boundary conditions. A novel approach called ‘the dynamics of blocks’ is proposed to obtain the matrix product operators in the case of Hamiltonians with periodic boundary conditions. This approach works universally for any Hamiltonian with two-particle as well as single-particle interactions. The main significance of the proposed approach is that, the dimensions of the matrix product operators obtained are the same for both open and periodic boundary conditions. This method gives us a generic way of constructing MPOs for any Hamiltonian with arbitrary neighboring interactions, immaterial of how the interaction strength falls. A general numerical implementation of the ‘dynamics of blocks’ method is also carried out. The DMRG algorithm was implemented, and the ground state eigenvalue was obtained using these MPOs to numerically validate the method.
Assessment of black rot development on apple surface using laser biospeckle technique
Authors: Koley Chhanda , Das Rittik , Nirala Anil Kumar 
Published: January 2023

Abstract
In our present study, the laser biospeckle technique has been applied to monitor the spread of black rot fungal disease and evaluate the infected area on apple surface for the first time to the best of our knowledge. Image processing algorithms such as inertia moment (IM), absolute value of differences (AVD) and spatial-temporal speckle correlation show the reduction of biospeckle activity of the black rot infected apples in comparison to that of the healthy apples with increase in time, once the visible symptom of the disease sets in. Spectral activity maps obtained using Fujii, inverse Fujii and parameterized Fujii show the spread of this infection with the progression of day. Under exposition test and histogram plot have been used to evaluate the increase of darkness of the infected apple with the progression of day and the results have come out as a replica of the change of colour of the region of interest. % biospeckle activity loss on the final day of the experiment has been found to be 17.83% and 11.91% for healthy apples & 92.42% and 78.63% for infected apples using IM and AVD respectively. An increase in the infected area and % increase in infected area of the region of interest on the image plane has been determined to be 0.33 mm2 and 58.57% respectively on the final day of the experiment.
Quantum gravity lights up spinning black holes
Authors: Eichhorn Astrid , Held Aaron 
Published: January 2023

Abstract
Quantum-gravity effects in black holes are generally expected to be unobservable if they set in at transplanckian curvature scales. Here, we challenge this expectation. A near-critical spin parameter can serve as a lever arm that translates Planckian quantum-gravity effects to a global change in the spacetime: the horizon dissolves and the black hole “lights up”.

We investigate this transition between a black hole and a horizonless spacetime and find that additional lensing features appear instantaneously, when the quantum-gravity effect is added.
In the presence of an accretion disk, a second set of internal photon rings appears in addition to the exponentially stacked set of external photon rings.
The internal and external photon rings merge into cresent-like features as a function of increasing spin parameter. We explore how these simulated images would be reconstructed by a radio-very-long-baseline-interferometry array like the Event Horizon Telescope. We find that a future next-generation Event Horizon Telescope may be sensitive to the additional lensing features.
Full-shape BOSS constraints on dark matter interacting with dark radiation and lifting the S8
tension
Authors: Rubira Henrique , Mazoun Asmaa , Garny Mathias 
Published: January 2023

Abstract
In this work we derive constraints on interacting dark matter-dark radiation models from a full-shape analysis of BOSS-DR12 galaxy clustering data, combined with Planck legacy cosmic microwave background (CMB) and baryon acoustic oscillation (BAO) measurements. We consider a set of models parameterized within the effective theory of structure formation (ETHOS), quantifying the
lifting of the S8
tension in view of KiDS weak-lensing results. The most favorable scenarios point to a fraction f ∼ 10-100% of interacting dark matter as well as a dark radiation temperature that is smaller by a factor ξ ∼ 0.1-0.15 compared to the CMB, leading to a reduction of the tension to the ∼ 1σ level.
The temperature dependence of the interaction rate favored by relaxing the S8
tension is realized for a weakly coupled unbroken non-Abelian SU(N) gauge interaction in the dark sector.
To map our results onto this SU(N) model, we compute higher-order corrections due to Debye screening. We find
a lower bound αd
≡ gd

2/(4π) ≳ 10-8 (10-9) for dark matter mass 1000 (1) GeV for relaxing the S8
tension, consistent with upper bounds from galaxy ellipticities and compatible with self-interactions relevant for small-scale structure formation.
Instability in axion inflation with strong backreaction from gauge modes
Authors: Peloso Marco , Sorbo Lorenzo 
Published: January 2023

Abstract
We perform an analytical study of the stability of the background
solution [1] of the model in which an inflaton, through an axionic coupling to a
U(1) gauge field, causes an amplification of the gauge field modes that strongly backreact on
its dynamics. To this goal, we study the evolution of the gauge field modes coupled to the
inflaton zero mode, treating perturbatively the deviation of the inflaton velocity from its
mean-field value. As long as the system is in the strong backreaction regime we find that the
inflaton velocity performs oscillations of increasing amplitude about the value it would have in
the approximation of constant velocity, confirming an instability that has been observed in
numerical studies.
Local variations of charge radii for nuclei with even Z from 84 to 120
Authors: An Rong , Dong Xiao-Xu , Cao Li-Gang , Zhang Feng-Shou 
Published: January 2023

Abstract
Pronounced changes of nuclear charge radii provide a stringent benchmark on the theoretical models and play a vital role in recognizing various nuclear phenomena. In this work, the systematic evolutions of nuclear charge radii along even Z = 84–120 isotopic chains are first investigated by the recently developed new ansatz under the covariant density functional. The calculated results show that the shell closure effects of nuclear charge radii appear remarkably at the neutron numbers N = 126 and 184. Interestingly, the arch-like shapes of charge radii between these two strong neutron-closed shells are naturally observed. Across the N = 184 shell closure, the abrupt increase in charge radii is still evidently emerged. In addition, the rapid raise of nuclear charge radii from the neutron numbers N = 138 to N = 144 is disclosed clearly in superheavy regions due to the enhanced shape deformation.
Decoding spatial locations from primate lateral prefrontal cortex neural activity during virtual navigation
Authors: Johnston Renée , Abbass Mohamad , Corrigan Benjamin , Gulli Roberto , Martinez-Trujillo Julio , Sachs Adam 
Published: January 2023

Abstract

Objective. Decoding the intended trajectories from brain signals using a brain-computer interface system could be used to improve the mobility of patients with disabilities. Approach. Neuronal activity associated with spatial locations was examined while macaques performed a navigation task within a virtual environment. Main results. Here, we provide proof of principle that multi-unit spiking activity recorded from the lateral prefrontal cortex (LPFC) of non-human primates can be used to predict the location of a subject in a virtual maze during a navigation task. The spatial positions within the maze that require a choice or are associated with relevant task events can be better predicted than the locations where no relevant events occur. Importantly, within a task epoch of a single trial, multiple locations along the maze can be independently identified using a support vector machine model. Significance. Considering that the LPFC of macaques and humans share similar properties, our results suggest that this area could be a valuable implant location for an intracortical brain-computer interface system used for spatial navigation in patients with disabilities.
Perturbative analysis of low-frequency instabilities in high-field ST40 experiments
Authors: Duarte V.N. , Gorelenkov N.N. , Kaye S.M. , Bonofiglo P.J. , Podestà M. , Bland J. , Buxton P. , Gryaznevich M. , Romanelli M. , Sertoli M. 
Published: January 2023

Abstract
Linear and nonlinear perturbative analyses of low-frequency instabilities are presented for ST40 spherical torus high field plasmas, with simultaneous neutral beam heating due to two tangential sources at 25 keV and 55 keV. Initial plasma profiles on which the TRANSP and NUBEAM codes were based were obtained using an integrated analysis of several diagnostics including line-of-sight integrated and volume average measurements, as well as limited profile information from a charge-exchange-recombination spectrometer. Magnetohydrodynamics (MHD) analysis using the NOVA/NOVA-K codes suggests that the modes in the experiments are core-localized n = 1 eigenmodes with mixed acoustic and electromagnetic Alfvénic polarization. The global transport combined with the perturbative mode analysis indicates that there is greater tendency for bursty chirping response as the level of background micro-turbulence decreases in time and those predictions are shown to be consistent with the experimental data. This finding is interpreted in terms of the suppression of coherent phase-space structures that support chirping when the resonant fast ion dynamics is dominated by frequent stochastic, orbit-decorrelating events.
A high-resolution clock phase shifter circuitry for ALTIROC
Authors: Huang X. , de La Taille C. , Gong D. , Liu C. , Liu T. , Morenas M. , Seguin-Moreau N. , Ye J. , Zhang L. 
Published: January 2023

AbstractA high-resolution clock phase shifter is implemented to adjust the phase of multiple clocks at 40 MHz, 80 MHz, or 640 MHz in the ALTIROC chip. The phase shifter has a coarse-phase shifter and a fine-phase shifter to achieve a step size of 97.7 ps and an adjustable range of 25 ns. The fine delay unit is based on a Delay Locked Loop (DLL) operating at 640 MHz. The phase shifter is fabricated in a 130 nm CMOS process. The area of the phase shifter is 725 µm × 248 µm. The Differential Non-Linearity (DNL) and the Integral Non-Linearity (INL) are ±0.6 LSB and ±0.75 LSB, respectively. The jitter from −25 °C to 20 °C is less than 15.5 ps (RMS), including the contributions from the FPGA clock source and the PLL. The power consumption is 11.2 mW.
The Airy2 process and the 3D Ising model
Authors: Ferrari Patrik L , Shlosman Senya 
Published: January 2023

Abstract
The Ferrari–Spohn diffusion process arises as limit process for the 2D Ising model as well as random walks with area penalty. Motivated by the 3D Ising model, we consider M such diffusions conditioned not to intersect. We show that the top process converges to the Airy2 process as

M
→
∞

. We then explain the relation with the 3D Ising model and present some conjectures about it.
Fully solution-processed carbon nanotubes thin film transistors and PMOS inverters on glass substrate
Authors: Singh Subhash 
Published: January 2023

Abstract
We report fully solution-processed thin film transistors and PMOS inverters fabricated on glass substrates using single-walled carbon nanotubes (SWCNTs) as active semiconducting material. All the electrodes (gate, source, and drain) were inkjet-printed using silver (Ag) as conductive ink. Spin coated poly-4-vinylphenol dielectric was optimized in terms of thickness and heating conditions for solution-processed SWCNTs thin film transistors to achieve a mobility equal to 0.81 cm2 V−1s−1. We will show that, hole traps at the dielectric-semiconductor interface are responsible for the hysteresis in the transfer curve, and controlled by the different sweep rate of the gate field. Drain-current transients under different bias conditions were studied and the increase in current occurs due to slow polarizations of residual dipolar groups in the dielectric. The adopted technology has been exploited to fabricate a PMOS inverter and studied for high gain and noise margin values at the supply voltage, V
DD = −40 V.
What’s not trending on Weibo: China’s missing climate change discourse
Authors: Liu Chuxuan , Wallace Jeremy Lee 
Published: January 2023

Abstract
Given the central role of People’s Republic of China (PRC) in the global climate crisis, discussion and analysis of Chinese actions and pledges on decarbonization abound. However, less examined are the popular ‘demand’ side of climate change politics inside of China. Our article explores a new set of data to gauge public discourse in China related to climate change by looking at trending topics on the prominent social media platform, Sina Weibo. In over 348,000 trending topics on Weibo from June 2017 to February 2021, we find only 336 unique topics, that is 0.12%, related to climate change. Even in the rare occasions when climate-related topics start trending, we find a general lack of substantive engagement in Weibo posts.
Extreme pressure properties of garlic oil: comparative investigations with PAO4 base oil and PAO/garlic oil blend
Authors: Bashir Shahnaz , Khan M Jebran , Wani M F , Saleem S Shahid , John Mir Mohsin , Ashraf Qazi Junaid , Nissar Tabin 
Published: January 2023

Abstract
This study aims at exploring the improvement in extreme pressure (EP) properties with addition of natural Garlic oil as EP additive. Comparative investigations were conducted on PAO4 base oil, Natural Garlic oil (NGO) and PAO4 + 1 wt% NGO (Natural Garlic Oil) for evaluating the extreme pressure properties. The EP tests were conducted on a four ball tester according to ASTM D 2783. The results revealed that NGO possesses significantly good extreme pressure properties having a weld load of 3087N and load wear index of 513N. The results also revealed that NGO could significantly improve the weld load and load wear index of PAO4 base oil. After adding 1 wt% garlic oil to PAO4 the load wear index increased by 62.51% and weld load increased by 25%. This study proposes garlic oil as a replacement to the use of nano-particles as EP additives and aims to eliminate the disadvantages that are prominent with nano-particles without comprising the performance.
AFTGAN: prediction of multi-type PPI based on attention free transformer and graph attention network
Authors: Kang Yanlei , Elofsson Arne , Jiang Yunliang , Huang Weihong , Yu Minzhe , Li Zhong 
Published: January 2023

AbstractMotivationProtein–protein interaction (PPI) networks and transcriptional regulatory networks are critical in regulating cells and their signaling. A thorough understanding of PPIs can provide more insights into cellular physiology at normal and disease states. Although numerous methods have been proposed to predict PPIs, it is still challenging for interaction prediction between unknown proteins. In this study, a novel neural network named AFTGAN was constructed to predict multi-type PPIs. Regarding feature input, ESM-1b embedding containing much biological information for proteins was added as a protein sequence feature besides amino acid co-occurrence similarity and one-hot coding. An ensemble network was also constructed based on a transformer encoder containing an AFT module (performing the weight operation on vital protein sequence feature information) and graph attention network (extracting the relational features of protein pairs) for the part of the network framework.ResultsThe experimental results showed that the Micro-F1 of the AFTGAN based on three partitioning schemes (BFS, DFS and the random mode) on the SHS27K and SHS148K datasets was 0.685, 0.711 and 0.867, as well as 0.745, 0.819 and 0.920, respectively, all higher than that of other popular methods. In addition, the experimental comparisons confirmed the performance superiority of the proposed model for predicting PPIs of unknown proteins on the STRING dataset.Availability and implementationThe source code is publicly available at https://github.com/1075793472/AFTGAN.Supplementary informationSupplementary data are available at Bioinformatics online.
BLTSA: pseudotime prediction for single cells by branched local tangent space alignment
Authors: Li Limin , Zhao Yameng , Li Huiran , Zhang Shuqin 
Published: January 2023

Abstract

Motivation
The development of single-cell RNA sequencing (scRNA-seq) technology makes it possible to study the cellular dynamic processes such as cell cycle and cell differentiation. Due to the difficulties in generating genuine time-series scRNA-seq data, it is of great importance to computationally infer the pseudotime of the cells along differentiation trajectory based on their gene expression patterns. The existing pseudotime prediction methods often suffer from the high level noise of single-cell data, thus it is still necessary to study the single-cell trajectory inference methods.

Results
In this study, we propose a branched local tangent space alignment (BLTSA) method to infer single-cell pseudotime for multi-furcation trajectories. By assuming that single cells are sampled from a low-dimensional self-intersecting manifold, BLTSA first identifies the tip and branching cells in the trajectory based on cells’ local Euclidean neighborhoods. Local coordinates within the tangent spaces are then determined by each cell’s local neighborhood after clustering all the cells to different branches iteratively. The global coordinates for all the single cells are finally obtained by aligning the local coordinates based on the tangent spaces. We evaluate the performance of BLTSA on four simulation datasets and five real datasets. The experimental results show that BLTSA has obvious advantages over other comparison methods.

Availability and implementation
R codes are available at https://github.com/LiminLi-xjtu/BLTSA.

Supplementary information
Supplementary data are available at Bioinformatics online.
Immunological Efficacy of Pneumococcal Vaccination Including the 13-Valent Pneumococcal Conjugate Vaccine in Adult Patients With Sickle Cell Disease: Results of the Randomized DREVAC Controlled Trial
Authors: Melica Giovanna , Bartolucci Pablo , Audureau Etienne , Le Corvoisier Philippe , Habibi Anoosha , Gellen Justine , Selmane Dalia , Michel Marc , Lacabaratz Christine , Levy Yves 
Published: January 2023

Abstract

Background
Patients with sickle cell disease (SCD) are at high risk for invasive pneumococcal diseases. The immunological efficacy of 13-valent conjugate pneumococcal vaccine (PCV13) followed by a 23-valent polysaccharide vaccine (PPSV23) is poorly documented in adults with SCD.

Methods
This was a randomized open-labeled phase 2 study of the immunogenicity of PCV13 at week 0, followed by PPSV23 at week 4, compared with PPSV23 alone at week 4 in adult patients with SCD. The proportion of responders (4-fold increase in serotype-specific immunoglobulin [Ig] G antibodies) to ≥10 shared serotypes was assessed at week 8. Secondary end points were (1) geometric mean titers, (2) responders to 0–1, 2–5, 6–9, or 10–12 serotypes, (3) pneumococcal opsonophagocytic activity, and (4) response durability at weeks 24 and 96.

Results
In total, 128 patients were randomized in the PCV13/PPSV23 (n = 63) or PPSV23-alone groups (n = 65). At week 8, 24.56% and 8.20% of patients from the PCV13/PPSV23 and PPSV23 groups, respectively, reached the primary end point (P = .02). These numbers were 36.2% and 8.7% for opsonophagocytic activity responders (P = .002). A combined PCV13/PPSV23 strategy improved the breadth of responses to 0–1, 2–5, 6–9, or 10–12 serotypes with 15.8%, 35%, 24.6%, and 24.6% versus 52.5%, 31%, 8%, and 8% in the PPSV23 group. At week 96, geometric mean titers were significantly higher in the PCV13/PPSV23 than in the PPSV23-alone group for 5 serotypes (4, 14, 19A, 19F, 23F).

Conclusions
A PCV13/PPSV23 regimen improved the breadth and magnitude of antibody responses against a large range of pneumococcal serotypes in adults with SCD. The sustainability of the immune response requires recall strategies.
Clinical Trial Registration: NCT02274415
Incremental diagnostic value of post-exercise lung congestion in heart failure with preserved ejection fraction
Authors: Kagami Kazuki , Obokata Masaru , Harada Tomonari , Sorimachi Hidemi , Yuasa Naoki , Saito Yuki , Kato Toshimitsu , Wada Naoki , Adachi Takeshi , Ishii Hideki 
Published: January 2023

Abstract

Aims
Lung ultrasound (LUS) may unmask occult heart failure with preserved ejection fraction (HFpEF) by demonstrating an increase in extravascular lung water (EVLW) during exercise. Here, we sought to examine the dynamic changes in ultrasound B-lines during exercise to identify the optimal timeframe for HFpEF diagnosis.

Methods and results
Patients with HFpEF (n = 134) and those without HF (controls, n = 121) underwent a combination of exercise stress echocardiography and LUS with simultaneous expired gas analysis to identify exercise EVLW. Exercise EVLW was defined by B-lines that were newly developed or increased during exercise. The E/e′ ratio peaked during maximal exercise and immediately decreased during the recovery period in patients with HFpEF. Exercise EVLW was most prominent during the recovery period in patients with HFpEF, while its prevalence did not increase from peak exercise to the recovery period in controls. Exercise EVLW was associated with a higher E/e′ ratio and pulmonary artery pressure, lower right ventricular systolic function, and elevated minute ventilation to carbon dioxide production (VE vs. VCO2) slope during peak exercise. Increases in B-lines from rest to the recovery period provided an incremental diagnostic value to identify HFpEF over the H2FPEF score and resting left atrial reservoir strain.

Conclusion
Exercise EVLW was most prominent early during the recovery period; this may be the optimal timeframe for imaging ultrasound B-lines. Exercise stress echocardiography with assessments of recovery EVLW may enhance the diagnosis of HFpEF.