bluuebunny/crossref_metadata_2025_split huggingface dataset:
CD47 promotes peripheral T cell survival by preventing dendritic cell–mediated T cell necroptosis
Authors: Komori Satomi , Saito Yasuyuki , Nishimura Taichi , Respatika Datu , Endoh Hiromi , Yoshida Hiroki , Sugihara Risa , Iida-Norita Rie , Afroj Tania , Takai Tomoko , Oduori Okechi S. , Nitta Eriko , Kotani Takenori , Murata Yoji , Kaneko Yoriaki , Nitta Ryo , Ohnishi Hiroshi , Matozaki Takashi 
Published: August 2023

Conventional dendritic cells (cDCs) are required for peripheral T cell homeostasis in lymphoid organs, but the molecular mechanism underlying this requirement has remained unclear. We here show that T cell–specific CD47-deficient (
Cd47
ΔT
) mice have a markedly reduced number of T cells in peripheral tissues. Direct interaction of CD47-deficient T cells with cDCs resulted in activation of the latter cells, which in turn induced necroptosis of the former cells. The deficiency and cell death of T cells in
Cd47
ΔT
mice required expression of its receptor signal regulatory protein α on cDCs. The development of CD4
+
T helper cell–dependent contact hypersensitivity and inhibition of tumor growth by cytotoxic CD8
+
T cells were both markedly impaired in
Cd47
ΔT
mice. CD47 on T cells thus likely prevents their necroptotic cell death initiated by cDCs and thereby promotes T cell survival and function.
Geographies of inequalities
Authors: Reite Torun 
Published: August 2023

Abstract
Theoretically positioned at the intersections between human geography, ethnography of space and place, and Linguistic Landscape Studies (LLS), this ethnographically grounded study mediates a dialogue between LLS and Pierre Bourdieu’s sociology and shows how the intersubjective dimension of the habitus provides a powerful lens with which to explore the people-place relation, central to disentangling the political economy of language and place. Inspired by existing ethnographically and people-centered LLS, the study is set in Maputo city, well-known for its enduring social and spatial division from colonial to postcolonial times. The analyses foreground the people-place relation in different sites across the material and non-material urban geographies. By relocating LLS, the study challenges modernist notions of divides, foregrounding the often-neglected invisible embodied dynamics of conflicting schemata – fundamental to the understanding of the reciprocal people-in-place relationship and the spatialization of inequalities, thus offering a rich and thick LLS.
Comparison of quick speech-in-noise test and pure tone audiometry in noise-induced hearing loss
Authors: Loukzadeh Ziba , Alizadeh Narges , Mehrparvar Amir Houshang 
Published: August 2023

Objective:
Complaints of speech understanding in situations where background noise exists, can be seen from early stages of Noise-Induced Hearing Loss (NIHL); therefore, speech-in-noise tests including Quick speech-in-noise (Q-SIN) tests may be a suitable method for screening NIHL. The Q-SIN test uses the Signal to Noise Ratio (SNR) to evaluates speech perception in the presence of noise. This study aimed to compare pure tone audiometry and Q-SIN tests in patients with NIHL and normal hearing subjects.

Methods:
In this cross-sectional study, according to the result of audiometry, subjects were classified into two groups: 45 individuals with audiograms suggestive of NIHL as a case group and 57 normal-hearing individuals as controls. The Persian version of the Quick-SIN test was performed for two study groups. The Mann-Whitney U Test was used for the comparison of mean SNR and hearing thresholds between the study groups. Spearman test was implemented for evaluation of the correlation between mean SNR and mean hearing thresholds in high and low frequencies in both ears.

Results:
The median SNR loss was significantly higher in the NIHL group [0.75 (IQR: −0.75, 2.75)] than in the normal hearing group [−1.25 (−0.25, 1.25)] (p < 0.0001). It was also found that in the NIHL group, SNR loss had a direct and significant correlation with the high frequencies of both ears and the low frequency of the left ear, as the average hearing threshold increases at high frequencies and low frequencies of the left ear, the SNR loss mean increases as well.

Conclusion:
The present study showed that the Q-SIN test as a rapid, easily applicable test has a positive correlation with pure tone audiometry results, especially at higher frequencies.
Boosting the open-circuit voltage of Cu2ZnSn(S,Se)4 solar cell by Cd/NH3 soaking
Authors: Ma Yujiao , Sun Yuzhou , Zhang Zihan , Zhao Haokai , Gao Haifeng , Zhou Qing , Li Wenbo , Teng Xiaoyun , Gao Chao , Yu Wei 
Published: August 2023

Abstract
In this paper, the open-circuit voltages (V
OC) of Cu2ZnSn(S,Se)4 (CZTSSe) solar cells were improved by soaking the CZTSSe films in Cd/NH3 solutions before the deposition of buffer layers. The effects of Cd/NH3 soaking on the properties of CZTSSe films and solar cells were investigated in depth. We found Cd/NH3 soaking can promote downward band bending of the CZTSSe layer at the surface region. In addition, the Cd/NH3 soaking can eliminate the deep level acceptor in CZTSSe and decrease the density of the defects at the absorber/buffer interface. These effects can significantly reduce the carrier recombination in the depletion region of CZTSSe solar cells. As a result, the V
OC of CZTSSe solar cells were increased from ∼460 mV to ∼480 mV, the efficiency of the best CZTSSe solar cell was increased from 10.2% to 11.6% by the Cd/NH3 soaking process.
Modification of topological corner excitations at the interplay of boundary geometry and Coulomb interaction
Authors: Fedoseev A D 
Published: August 2023

Abstract
The effect of Coulomb interaction on the 2D second order topological superconductor is investigated taking into account different geometries of the boundary in the mainframe of the mean-field approximation. The spontaneous symmetry breaking, described earlier in Aksenov et al (2023 Phys. Rev. B 107 125401), is found to be robust against the boundary deformation. Meanwhile, the details of the state with spontaneously broken symmetry is found to be dependent on the specific boundary geometry. Considering different types of the boundary of the 2D system, it is demonstrated that the deviation of the electron density in the broken symmetry state is determined by the position of the zero-dimensional (second-order) excitations with nearly zero energy. The critical value of the Coulomb interaction, at which the transition occurs, is found to be determined by the energy of these excitations, which is non-zero due to overlapping of the wave-functions at different corners.
Oxide-mediated nitrogen doping of CVD graphene and their subsequent thermal stability
Authors: Zahra Khadisha M , Byrne Conor , Li Zheshen , Hazeldine Kerry , Walton Alex S 
Published: August 2023

Abstract
Heteroatom doping of graphene is a promising approach for tailoring its chemical and electronic properties—a prerequisite for many applications such as sensing, catalysis, and energy storage. Doping chemical vapour deposition (CVD) graphene with nitrogen during growth (in situ doping) is a common strategy, but it produces a distribution of inequivalent dopant sites and requires substantial modifications to the CVD growth process. In this study, we demonstrate a novel and simple oxide-mediated approach to introduce nitrogen dopants into pre-existing CVD graphene (ex situ doping) which achieves comparable doping densities to in situ doping methodologies. Furthermore, we demonstrate that thermal annealing of N-doped graphene can selectively remove pyridinic, retaining graphitic and pyrrolic nitrogen dopants, offering an attractive route to further modify graphene functionality. The methodologies we present are simple and scalable to precisely tailor graphene properties without the need to alter CVD growth protocols.
Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet
Authors: Bernat Jakub , Kołota Jakub , Gajewski Piotr , Marcinkowska Agnieszka 
Published: August 2023

Abstract
Dielectric elastomer actuators have become one of the most important smart material transducers in recent times. One of the crucial aspects in this field is the application of bias to find the best operating conditions. The basic task is to find the proper bias configuration to obtain a wide range of displacements in the actuator. In the literature, various biases, such as mechanical springs, permanent magnets (PMs), or pneumatic springs, are studied. In our work, the magnetorheological elastomer (MRE) is applied to build a novel bias that ensures a wide range of displacement. Because of the softness and the compliant chemical structure, the MRE can be easily integrated with the dielectric elastomer actuator. The MRE as a bias for a dielectric elastomer actuator is verified in the series of experiments. Finally, the discussion on the advantages and disadvantages of the new bias type is performed.
Metamaterial boat fenders with supreme shape recovery and energy absorption/dissipation via FFF 4D printing
Authors: Bodaghi Mahdi , Namvar Naser , Yousefi Armin , Teymouri Hadi , Demoly Frédéric , Zolfagharian Ali 
Published: August 2023

Abstract
In maritime transportation, a fender acts like a bumper to absorb the kinetic energy of a boat berthing against a jetty, pier wall, or other boats. They have high energy absorption and low reaction forces, preventing damage to boats and berthing structures. The aim of this paper is to introduce a novel conceptual design for a new class of lightweight boat-fendering systems with superior energy absorption/dissipation and shape recovery features. Different metamaterials with honeycomb, re-entrant, and re-entrant chiral auxetic patterns are designed in the form of boat fender panels, and their thermo-mechanical behaviors are analyzed experimentally and numerically. A finite element modeling (FEM) is developed to investigate the compressive behaviors of boat fenders. Some of designs are 4D printed by fused filament fabrication of shape memory polylactic acid polymers and then tested thermo-mechanically. A good correlation is observed between numerical and experimental results, supporting the FEM accuracy. Results reveal that proposed boat fenders have considerable energy absorption/dissipation along with the capability to fully recover plastic deformations by simply heating up. The excellent mechanical property recovery of the proposed boat-fendering system is also shown under cycling loadings. Due to the absence of similar conceptual designs, models, and results in the specialized literature, this paper is expected to be instrumental towards 4D printing novel boat fenders with supreme energy absorption/dissipation and shape recovery properties promoting sustainability.
Generating rotationally hidden attractive sea via a new chaotic system with two mixed memristors
Authors: Zhou Ziwei , Ye Xiaolin 
Published: August 2023

Abstract
In this work, a novel 3D memristive chaotic system which has an exponential function is proposed. Especially, the sum of Lyapunov exponents in the proposed system is 0. It indicates that the system can generate attractive sea not attractor. In comparison with some other 3D chaotic systems, this type of chaotic system is relatively rare. In particular, the proposed system has non-equilibrium point, and it can produce hidden sea. Furthermore, the perpetual point of the proposed system is caculated. It is considered to be potentially related to the generation of hidden dynamics. By using the dynamic analysis tool such as 0–1 test and 2D dynamical map, the dynamic behaviors with different control parameters are analyzed. And then, based on the proposed 3D chaotic system, two new system models are reconstructed. The new model can produce the rotational hidden attractive sea with different angles. DSP implementation shows the feasibility of the system for industrial applications.
A further look at the nano/micro-indentation method for measuring and ranking Young’s modulus and hardness of materials
Authors: Zhang Dong , Li D Y 
Published: August 2023

Abstract
Determination of the intrinsic Young’s modulus (E) is essential for material design and applications. However, the commonly used micro/nano-indentation method does not give accurate intrinsic Young’s modulus, since the measured modulus comes from the damaged zone under the indent tip. In this study, we analyze the intrinsic Young’s modulus or that without local damage caused by indentation, and determine that the intrinsic Young’s modulus can be determined by extrapolation of the E ∼ load curve as the indentation load approaches zero. To support this finding, indentation behaviors of five ceramic materials (Al2O3, Si3N4, ZrO2, glass and cemented WC/Co) were analyzed and compared with those determined using an acoustic method. The intrinsic Young’s modulus measured, e.g., using the acoustic method, are appropriate for material ranking, while Young’s moduli of different materials measured by indentation under the same load could give misleading information because of different degrees of local damage to the materials under the indenter. Underlying mechanisms for the observed phenomena shown in this novel and unique study are elucidated based on the interatomic bonding. Hardness versus load curves show trends similar to those of Young’s modulus. However, unlike the Young’s modulus, the hardness values measured under the same load can be directly used to rank materials; the reason behind is also discussed.
On unitarity in singlet inflation with a non-minimal coupling to gravity
Authors: Lebedev Oleg , Mambrini Yann , Yoon Jong-Hyun 
Published: August 2023

Abstract
We study inflationary models based on a non-minimal coupling of a singlet scalar to gravity,
focussing on the preheating dynamics and the unitarity issues in this regime. If the scalar does not have significant couplings to other fields,
particle production after inflation is far less efficient than that in Higgs inflation.
As a result, unitarity violation at large non-minimal couplings requires a different treatment. We find that collective effects in inflaton scattering processes during preheating
make an important impact on the unitarity constraint. Within effective field theory, the consequent upper bound on the non-minimal coupling is of order a few hundreds.
Dynamic error fields derivation by inverting a validated interpretative perturbations model
Authors: Miron G. , Rimini F. ,   JET Contributors
Published: August 2023

Abstract
The need for a model able to provide the dynamic evolution of the intrinsic magnetic error fields amplitude in tokamaks is of a significant importance in order to develop strategies to correct its destabilizing effect. The present paper specifically aims to deliver this kind of model and adjacent code. A previously built direct perturbations interpretative model (Miron (JET Contributors) 2021 Nucl. Fusion
61 106016) is used to calculate the plasma instabilities amplitude and frequency aiming to match the same quantities provided by the device diagnostics data analysis specific code for various discharges at JET. The mentioned good match ensures our model validity against the experimental results. Based on its proven structural validity, our model considering the error field quantities is inverted. This time the initial direct model output results, namely the plasma perturbations amplitude and frequency, become input data for our inverse model aiming to solve the corresponding error field modes system of equations searched as unknowns. The error fields basically satisfy the same outer plasma perturbed equations as the plasma perturbations do (vacuum/wall/plasma column external structures). Obviously they do not satisfy the perturbed plasma equations. A clear and explicit dynamic error field solution is finally provided. It has been demonstrated that whenever the error fields are responsible for the mode locking effect and plasma rotation damping, the calculated error fields shows its expected disruptive resonant behavior during various discharges at JET.
The dichotomous acceleration process in one dimension: position fluctuations
Authors: Santra Ion , Ajgaonkar Durgesh , Basu Urna 
Published: August 2023

Abstract
We study the motion of a one-dimensional particle that reverses its direction of acceleration stochastically. We focus on two contrasting scenarios, where the waiting times between two consecutive acceleration reversals are drawn from (i) an exponential distribution and (ii) a power-law distribution

ρ
(
τ
)
∼

τ

−
(
1
+
α
)

. We compute the mean, variance and short-time distribution of the position x(t) using a trajectory-based approach. We show that, while for the exponential waiting time,

⟨

x
2

(
t
)
⟩
∼

t
3

at long times, for the power-law case, a non-trivial algebraic growth

⟨

x
2

(
t
)
⟩
∼

t

2
ϕ
(
α
)

emerges, where

ϕ
(
α
)
=
2

,

(
5
−
α
)

/

2

and

3

/

2

for

α
<
1
,

1
<
α
⩽
2

and α > 2, respectively. Interestingly, we find that the long-time position distribution in case (ii) is a function of the scaled variable

x

/

t

ϕ
(
α
)

with an α-dependent scaling function, which has qualitatively very different shapes for α < 1 and α > 1. In contrast, for case (i), the typical long-time fluctuations of position are Gaussian.
The ghost symmetries of the q-KP hierarchy
Authors: Tian Kelei , Du Xiaohan , Xu Ying , Yi Ge 
Published: August 2023

Abstract
In this paper, the squared eigenfunction and the ghost symmetry of the q-Kadomtsev–Petviashvili hierarchy are defined, and then the related problems are investigated. The spectral representation of the eigenfunction and the adjoint eigenfunction are derived. The definition of the ghost symmetry are generalized and the ghost flows on the tau function are also derived.
Asymptotics of noncolliding q-exchangeable random walks
Authors: Petrov Leonid , Tikhonov Mikhail 
Published: August 2023

Abstract
We consider a process of noncolliding q-exchangeable random walks on

Z

making steps 0 (‘straight’) and −1 (‘down’). A single random walk is called q-exchangeable if under an elementary transposition of the neighboring steps

(
down
,
straight
)
→
(
straight
,
down
)

the probability of the trajectory is multiplied by a parameter

q
∈
(
0
,
1
)

. Our process of m noncolliding q-exchangeable random walks is obtained from the independent q-exchangeable walks via the Doob’s h-transform for a nonnegative eigenfunction h (expressed via the q-Vandermonde product) with the eigenvalue less than 1. The system of m walks evolves in the presence of an absorbing wall at 0. The repulsion mechanism is the q-analogue of the Coulomb repulsion of random matrix eigenvalues undergoing Dyson Brownian motion. However, in our model, the particles are confined to the positive half-line and do not spread as Brownian motions or simple random walks. We show that the trajectory of the noncolliding q-exchangeable walks started from an arbitrary initial configuration forms a determinantal point process, and express its kernel in a double contour integral form. This kernel is obtained as a limit from the correlation kernel of q-distributed random lozenge tilings of sawtooth polygons. In the limit as

m
→
∞

,

q
=

e

−
γ

/

m

with γ > 0 fixed, and under a suitable scaling of the initial data, we obtain a limit shape of our noncolliding walks and also show that their local statistics are governed by the incomplete beta kernel. The latter is a distinguished translation invariant ergodic extension of the two-dimensional discrete sine kernel.
Comparative Analysis of Raft, Pile & Piled Raft Foundation using Designing Software
Authors: Dhage Amit , Solanke S. S. 
Published: August 2023

Abstract
Raft foundations are essentially a slab that extends the entire length of the building, sustaining and dispersing its mass to the earth. A pile foundation is a collection of columns that are erected or inserted into the ground to distribute weight to the subsoil underneath. A pile is a long, cylindrical construction made made of a sturdy substance such as concrete. Building loads are transferred to hard strata, rocks, or high-bearing-capacity soil using piles. Pinned raft foundations are a combination of a pile and a raft slab. They’re frequently used for large structures and when the soil is insufficient to avoid excessive settling. As a result of this, the soil is less strained. Pile foundations are necessary in areas where buildings are large and heavy, yet the soil beneath them is weak. In areas where settlement. Deep foundations with pile rafts can help move strata Adding piles to a raft increases the effective size of the foundation and can help it sustain horizontal loads.
On a G+20 residential structure, the research of raft, pile, and stacked raft foundations was conducted using structural software safe 16. For a zone factor II earthquake, a building’s seismic study is completed. The pile raft foundation has less upward soil carrying load and less settling than the raft foundation, according to a study of the G+20 structure for pile, raft, and piled raft foundations.
Experimental Investigation on Self Healing of Fibre Reinforced Concrete
Authors: Neeraja P , Prasad B.S.R.K 
Published: August 2023

Abstract
In recent years sustainability in all domains is expected to be implemented, and in Civil Engineering the importance of sustainability has to be addressed with utmost care. Keeping this as main concern there has been an increasing trend in the study of self-healing materials in concrete. Self healing materials have the ability to heal the concrete once crack is formed. These materials are a family of the super family of the so-called “smart materials”, characterized for their ability to retrieve part of the damage caused by mechanical loads (pores, micro cracks, etc.). In the current study the artificial healing in concrete is induced by crystalline admixture. To decrease the cement content in concrete so as to make it environment friendly fly ash is replacing cement by 15%. Nylon fibres are incorporated to improve the tensile properties of concrete. Cracks would be artificially induced in concrete and the recovery mechanism of the cracks in terms of healing would be studied. Also, the recovery in mechanical properties of concrete: Compressive strength split tensile strength after crack healing would be studied so as to know the variation if any in these properties has occurred by using the chemicals.