bluuebunny/crossref_metadata_2025_split huggingface dataset:
The cosmology of $$f(R, L_m)$$ gravity: constraining the background and perturbed dynamics
Authors: Sahlu Shambel , Alfedeel Alnadhief H. A. , Abebe Amare 
Published: September 2024

AbstractThis paper delves into the late-time accelerated expansion of the universe and the evolution of cosmic structures within the context of a specific $$ f(R, L_m) $$

f
(
R
,

L
m

)

gravity model, formulated as $$ f(R, L_m) = \lambda R + \beta L_m^\alpha + \eta $$

f

(
R
,

L
m

)

=
λ
R
+
β

L
m
α

+
η

. To study the cosmological viability of the model, we employed the latest cosmic measurement datasets: (i) 57 observational Hubble parameter data points (); (ii) 1048 distance moduli data points (); (iii) a combined dataset (); and large scale structure datasets, including (iv) 14 growth rate data points (); and (v) 30 redshift space distortion data points ($$\sigma _8$$

σ
8

). These datasets facilitated the constraint of the $$ f(R, L_m) $$

f
(
R
,

L
m

)

-gravity model via MCMC simulations, followed by a comparative analysis with the $$\varLambda $$
Λ
CDM model. A comprehensive statistical analysis has been conducted to evaluate the $$ f(R, L_m) $$

f
(
R
,

L
m

)

-gravity model’s efficacy in explaining both the accelerated expansion of the universe and the growth of cosmic structures. Using large-scale structure data, we find the best-fit values of $$\varOmega _m = 0.242^{+0.016}_{-0.032}$$

Ω
m

=
0
.

242

-
0.032

+
0.016

, $$\alpha = 1.15^{+0.20}_{-0.20}$$

α
=
1
.

15

-
0.20

+
0.20

, $$\beta = 1.12^{+0.13}_{-0.30}$$

β
=
1
.

12

-
0.30

+
0.13

, $$\lambda = 0.72^{+0.30}_{-0.13}$$

λ
=
0
.

72

-
0.13

+
0.30

and $$\gamma = 0.555\pm {0.014}$$

γ
=
0.555
±

0.014

using -data and $$\varOmega _m = 0.284^{+0.035}_{-0.049}$$

Ω
m

=
0
.

284

-
0.049

+
0.035

, $$\sigma _8 = 0.799^{+0.045}_{-0.086}$$

σ
8

=
0
.

799

-
0.086

+
0.045

, $$\alpha = 0.766^{+0.026}_{-0.064}$$

α
=
0
.

766

-
0.064

+
0.026

, $$\beta = 1.08^{+0.40}_{-0.16}$$

β
=
1
.

08

-
0.16

+
0.40

, and $$\lambda = 0.279^{+0.078}_{-0.11}$$

λ
=
0
.

279

-
0.11

+
0.078

using $$\sigma _8$$

σ
8

-data at the $$1\sigma $$

1
σ

and $$2\sigma $$

2
σ

confidence levels, respectively, with the model showing substantial observational support based on $$\varDelta $$
Δ
AIC values but less observational support based on the $$\varDelta $$
Δ
BIC values on Jeffreys’ statistical criteria. On the other hand, from the joint analysis of the data, we obtain $$\alpha = 1.091^{+0.035}_{-0.042}$$

α
=
1
.

091

-
0.042

+
0.035

, $$\beta = 1.237^{+ 0.056}_{-0.16}$$

β
=
1
.

237

-
0.16

+
0.056

and $$\lambda = 0.630^{+0.031}_{-0.050}$$

λ
=
0
.

630

-
0.050

+
0.031

with the Jeffreys’ scale statistical criteria showing the $$ f(R, L_m) $$

f
(
R
,

L
m

)

model having substantial support when using data, less observational support with the joint analysis , and rejected using data, compared with $$\varLambda $$
Λ
CDM at the background level.
Weak energy condition, trapped surfaces and black hole third law
Authors: Bahmani F. , Shojai F. , Anjomshoaa Sh. 
Published: September 2024

AbstractWe consider the third law of thermodynamics for families of 4- and n-dimensional Vaidya black holes, including many of interest. Since there are several versions of the definition of surface gravity as well as the extremality condition for dynamical black holes, we first show that for the considered 4- and n-dimensional Vaidya families, these definitions are consistent with each other. We assume, first, that a non-extremal black hole evolves to an extremality state after a finite time and second, that the weak energy condition for the source holds at all times. We then compare the results of these assumptions and investigate whether there are ranges of black hole parameters where these two assumptions are in conflict.
Self-gravitating solutions in Yang–Mills–Chern–Simons theory coupled to 3D massive gravity
Authors: Corral Cristóbal , Flores-Alfonso Daniel , Giribet Gastón , Oliva Julio 
Published: September 2024

AbstractWe study self-gravitating solutions of three-dimensional massive gravity coupled to the Yang–Mills–Chern–Simons gauge theory. Among these, there is a family of asymptotically Warped-Anti de Sitter black holes that come to generalize previous solutions found in the literature and studied in the context of WAdS$$_3$$

3

/CFT$$_2$$

2

. We also present self-gravitating solutions to three-dimensional Einstein–Yang–Mills theory, as well other self-gravitating solutions in the presence of higher-curvature terms.
Non-hermitian Dirac theory from Lindbladian dynamics
Authors: Gomes Y. M. P. 
Published: September 2024

AbstractThis study investigates the intricate relationship between dissipative processes of open quantum systems and the non-Hermitian quantum field theory of relativistic fermionic systems. By examining the influence of dissipative effects on Dirac fermions via Lindblad formalism, we elucidate the effects of coupling relativistic Dirac particles with the environment and show the lack of manifest Lorentz invariance. Employing rigorous theoretical analysis, we generalize the collisionless Boltzmann equations for the relativistic dissipation-driven fermionic system and find the Lyapunov equation, which governs the stationary solutions. Using our formalism, one presents a simple non-Hermitian model that the relativistic fermionic particles and anti-particles are stable. Going further, using the solution to the Lyapunov equations, one analyses the effect of dissipation on the stationary charge imbalance of this non-Hermitian model and finds that the dissipation can induce a new kind of charge imbalance compared with the collisionless equilibrium case.
The lensing effect of quantum-corrected black hole and parameter constraints from EHT observations
Authors: Zhao Lai , Tang Meirong , Xu Zhaoyi 
Published: September 2024

AbstractThe quantum-corrected black hole model demonstrates significant potential in the study of gravitational lensing effects. By incorporating quantum effects, this model addresses the singularity problem in classical black holes. In this paper, we investigate the impact of the quantum correction parameter on the lensing effect based on the quantum-corrected black hole model. Using the black holes$$M87^*$$M87∗and$$Sgr A^*$$SgrA∗as our subjects, we explore the influence of the quantum correction parameter on angular position, Einstein ring, and time delay. Additionally, we use data from the Event Horizon Telescope observations of black hole shadows to constrain the quantum correction parameter. Our results indicate that the quantum correction parameter significantly affects the lensing coefficients$$\bar{a}$$a¯and$$\bar{b}$$b¯, as well as the Einstein ring. The position$$\theta _{\infty }$$θ∞and brightness ratioSof the relativistic image exhibit significant changes,with deviations on the order of magnitude of$$\sim 1\,\upmu \! \textrm{as}$$∼1μasand$$\sim 0.01\,\upmu \! \textrm{as}$$∼0.01μas, respectively. The impact of the quantum correction parameter on the time delay$$\Delta T_{21}$$ΔT21is particularly significant in the$$M87^*$$M87∗black hole, with deviations reaching up to several tens of hours. Using observational data from the Event Horizon Telescope(EHT) of black hole shadows to constrain the quantum correction parameter, the constraint range under the$$M87^*$$M87∗black hole is$$0\le \frac{\alpha }{M^2}\le 1.4087$$0≤αM2≤1.4087and the constraint range under the$$Sgr A^*$$SgrA∗black hole is$$0.9713\le \frac{\alpha }{M^2}\le 1.6715$$0.9713≤αM2≤1.6715. Although the current resolution of the EHT limits the observation of subtle differences, future high-resolution telescopes are expected to further distinguish between the quantum-corrected black hole and the Schwarzschild black hole, providing new avenues for exploring quantum gravitational effects.
$$X_0(2900)$$ and its spin partners productions in the $$B^+$$ decay processes
Authors: Yu Zhuo , Wu Qi , Chen Dian-Yong 
Published: September 2024

AbstractIn the present work, we investigate the productions of $$X_0(2900)$$

X
0

(
2900
)

and its spin partners in the $$B^+$$

B
+

decay processes, where $$X_0(2900)$$

X
0

(
2900
)

is regarded as a $$\bar{D}^*K^*$$

D

¯

∗

K
∗

molecular state. We infer that the initial $$B^+$$

B
+

meson and the final $$D^+ X_0(2900)$$

D
+

X
0

(
2900
)

are connected through the $$D_{s1}^{\prime +}(2460) \bar{D}^{*0} $$

D

s
1

′
+

(
2460
)

D

¯

∗
0

mesons by exchanging a $$K^{*0}$$

K

∗
0

meson. The contributions of such a meson loop to the process $$B^+ \rightarrow D^+ X_0(2900)$$

B
+

→

D
+

X
0

(
2900
)

are evaluated and our estimations indicate that the measured branching fraction of $$B^+\rightarrow D^+ X_0(2900)$$

B
+

→

D
+

X
0

(
2900
)

could be well reproduced in a reasonable range of model parameters, indicating that $$X_0(2900)$$

X
0

(
2900
)

could be interpreted as a $$\bar{D}^*K^*$$

D

¯

∗

K
∗

molecular state. In addition, the production processes $$B^+ \rightarrow D^+ \tilde{X}_{1,2}$$

B
+

→

D
+

X
~

1
,
2

, $$B^+ \rightarrow D^{*+} X_0(2900)$$

B
+

→

D

∗
+

X
0

(
2900
)

, and $$B^+ \rightarrow D^{*+}\tilde{X}_{1,2}$$

B
+

→

D

∗
+

X
~

1
,
2

are investigated, and we find that the fit fraction of $$\tilde{X}_1$$

X
~

1

in the process $$B^+ \rightarrow D^{*+} D^{*-} K^+$$

B
+

→

D

∗
+

D

∗
-

K
+

is about 6%, which should be accessible by the LHCb and Belle II Collaborations.
Rigidity and triangularity of an exponential map
Authors: Sai Krishna P. M. S. 
Published: September 2024

Let [Formula: see text] be a field of arbitrary characteristic, [Formula: see text] be a domain, and K = frac(A). Then (1) All exponential maps of [Formula: see text] are rigid, and we give a necessary and sufficient condition for the triangularity of [Formula: see text]. (2) If [Formula: see text] such that [Formula: see text], then [Formula: see text] is rigid and we give a necessary and sufficient condition for the triangularity of [Formula: see text]. When [Formula: see text] is of zero characteristic, [Formula: see text] is due to [D. Daigle, A necessary and sufficient condition for triangulability of derivations of [Formula: see text], J. Pure Appl. Algebra 113(3) (1996) 297–305] and [Formula: see text] is due to [M. K. Keshari and S. A. Lokhande, A note on rigidity and triangulability of a derivation, J. Commut. Algebra 6(1) (2014) 95–100].
A NOVEL METHOD FOR ENTREPRENEURIAL STUDENT MENTAL HEALTH ASSESSMENT USING EEG SIGNAL ANALYSIS ENHANCED BY GENERATIVE ADVERSARIAL NETWORKS
Authors: MENG XIANGMIN , LIU JIAPENG , ZHANG JIE 
Published: September 2024

Objective: This study aims to evaluate the mental health of college students who have failed in entrepreneurship by analyzing their electroencephalogram (EEG) signals. Long-term negative emotions are closely related to mental health problems. This study explores how to evaluate the mental health of college students who have failed in entrepreneurship through EEG signals and the use of generative adversarial networks (GANs) to improve classification accuracy. Methods: We first collected EEG data from college students who have failed in entrepreneurship. These data were used to extract multiple features, including time domain features, frequency domain features, and nonlinear features. To improve the accuracy and robustness of the classification model, we introduced GAN. GAN enhances the diversity of the training data set by generating more samples, thereby improving the performance of the EEG signal classification model. This process includes training the generator to generate samples similar to real data and training the discriminator to distinguish between real and generated data. Through this adversarial process, the classification model is continuously optimized. Experimental results show that the EEG signal analysis method based on GAN can effectively classify the long-term emotional state of college students who have failed in entrepreneurship and accurately identify negative emotions such as depression and anxiety. The additional samples generated by GAN significantly improve the classification model’s ability to identify emotional states, making the assessment of mental health status more accurate. Conclusion: This study successfully improved the accuracy of EEG signal classification by introducing GAN technology, thus providing an effective tool for evaluating the mental health status of college students who failed in entrepreneurship. This method not only enhances the ability to detect negative emotions of college students but also provides a novel and practical solution for mental health assessment and intervention in colleges and universities, which helps to detect and intervene in potential mental health problems of college students who failed in entrepreneurship as early as possible.
Influence of Composition on Mechanical Properties and Sound Speed of AlAs1−xPx for Various Pressures
Authors: Elkenany Elkenany Brens , Albargi Hasan B. , Dhahri R. , Al-Syadi A. M. 
Published: September 2024

The mechanical properties of AlAs1−xPx alloy under the influence of composition have been determined. The sound speed of AlAs1−xPx has been determined at various compositions. The studied properties were obtained with the effect of composition at various pressures. The predicted values were consistent with the available experimental results. The investigation used empirical method calculations based on empirical pseudo potential theory (EPM) with the virtual crystal approximation (VCA) to broaden the applications of ternary alloys and better investigate their potential as novel materials. AlAs1−xPx is a material that shows promise for usage in multi-junction solar cell designs because its properties can potentially be adjusted. The mechanical stability of AlAs1−xPx alloys was obtained according to these conditions C11 + 2C12 > 0, C44 > 0, and C11-C12 > 0. The obtained anisotropy factor was not equal to 1, indicating the presence of elastic anisotropy in the studied alloy in the applied composition range. The AlAs1−xPx alloy is a ductile material throughout the entire composition range at various pressures due to the Bu/Cs values exceeding 1.75.
Blunted Cardiac Mitophagy in Response to Metabolic Stress Contributes to HFpEF
Authors: Yoshii Akira , McMillen Timothy S. , Wang Yajun , Zhou Bo , Chen Hongye , Banerjee Durba , Herrero Melisa , Wang Pei , Muraoka Naoto , Wang Wang , Murry Charles E. , Tian Rong 
Published: September 2024

BACKGROUND:
Metabolic remodeling and mitochondrial dysfunction are hallmarks of heart failure with reduced ejection fraction. However, their role in the pathogenesis of HF with preserved ejection fraction (HFpEF) is poorly understood.

METHODS:

In a mouse model of HFpEF, induced by high-fat diet and Nω-nitrol-arginine methyl ester, cardiac energetics was measured by
31
P nuclear magnetic resonance (NMR) spectroscopy and substrate oxidation profile was assessed by
13
C-isotopmer analysis. Mitochondrial functions were assessed in the heart tissue and human induced pluripotent stem cell–derived cardiomyocytes.

RESULTS:
HFpEF hearts presented a lower phosphocreatine content and a reduced phosphocreatine/ATP ratio, similar to that in heart failure with reduced ejection fraction. Decreased respiratory function and increased reactive oxygen species production were observed in mitochondria isolated from HFpEF hearts suggesting mitochondrial dysfunction. Cardiac substrate oxidation profile showed a high dependency on fatty acid oxidation in HFpEF hearts, which is the opposite of heart failure with reduced ejection fraction but similar to that in high-fat diet hearts. However, phosphocreatine/ATP ratio and mitochondrial function were sustained in the high-fat diet hearts. We found that mitophagy was activated in the high-fat diet heart but not in HFpEF hearts despite similar extent of obesity suggesting that mitochondrial quality control response was impaired in HFpEF hearts. Using a human induced pluripotent stem cell–derived cardiomyocyte mitophagy reporter, we found that fatty acid loading stimulated mitophagy, which was obliterated by inhibiting fatty acid oxidation. Enhancing fatty acid oxidation by deleting ACC2 (acetyl-CoA carboxylase 2) in the heart stimulated mitophagy and improved HFpEF phenotypes.

CONCLUSIONS:
Maladaptation to metabolic stress in HFpEF hearts impairs mitochondrial quality control and contributed to the pathogenesis, which can be improved by stimulating fatty acid oxidation.
MDMA modulates human sensorimotor cortical pathways during gentle touch
Authors: Molla Hanna , Novembre Giovanni , Bershad Anya , Handlin Linda , Perini Irene , de Wit Harriet , Morrison India 
Published: September 2024

Abstract
The stimulant ± 3,4-methylenedioxymethamphetamine (MDMA) has been shown to enhance the perceived pleasantness of touch. However, the underlying neural processes contributing to touch-related effects of MDMA are not well understood. Using a double-blind, randomized, within-subject design, this study used fMRI to examine hemodynamic changes following MDMA (1.5 mg/kg) vs. lactose placebo administration during gentle touch stimulation in a healthy sample (N = 18). Participants were stroked on the forearm at a slower, more pleasant (3 cm/s), and a faster (30 cm/s), less pleasant speed. For the MDMA session, participants’ affective ratings of touch stimulation were higher than their placebo ratings. Increase in plasma oxytocin (OT) levels was also greater during the MDMA session. On the neural level, primary sensorimotor areas showed greater hemodynamic changes during the MDMA than during the placebo session for both touch speeds, indicating a relatively early influence within somatosensory pathways. Changes in OT levels showed an interaction with drug in an occipitotemporal region, area MT+, associated with motion perception. However, posterior insula did not show preferential activation for the slower stroking speed. These initial findings provide a basis for extending our knowledge of the neural processes underlying the effect of MDMA on affective touch.
Functional excitation-inhibition ratio indicates near-critical oscillations across frequencies
Authors: Diachenko Marina , Sharma Additya , Smit Dirk J. A. , Mansvelder Huibert D. , Bruining Hilgo , de Geus Eco , Avramiea Arthur-Ervin , Linkenkaer-Hansen Klaus 
Published: September 2024

Abstract
The concept of excitation/inhibition (E/I) balance plays an important role in understanding brain function in health and disease. We recently introduced an algorithm to determine a functional E/I ratio based on the critical brain dynamics that emerge in neuronal networks balancing between order and disorder. Little, however, is known about the frequency specificity of E/I regulation and how to measure it. Here, we optimized the algorithm for measuring functional excitation-inhibition ratio (fE/I) in narrow frequency ranges and validated it on a computational model of critical oscillations and EEG data. In the computational model, we confirmed that fE/I discriminated E/I connectivity differences across a wide range of frequencies (1–150 Hz). Twin EEG data revealed significant genetic influences on fE/I across frequencies, whereas contrasting eyes-open and -closed EEG indicated functional changes of fE/I restricted to a subset of alpha and beta oscillations and brain regions. We propose that assessing fE/I with finer frequency resolution will prove useful for understanding the functional role of E/I regulation in a spectrally refined fashion in health and disease.
Future as Past in Central Asian Gāndhārī
Authors: Giudice Alessandro 
Published: September 2024

Abstract
This paper explores the potential relationship between Aṣṭādhyāyī 3.2.112–114 and the usage of the future tense to denote past actions in Niya Prakrit. According to the interpretation by vyākaraṇa commentators, rule A 3.2.112 teaches that the l-substitutes of lṚṬ (= sigmatic future) occur after a verbal base to denote a past action excluding the present day, provided that there is a co-occurring word conveying the sense of ‘recollection’; the other two rules (A 3.2.113–114) constitute the exceptions to the latter. Specifically addressing A 3.2.112, Thomas Burrow argued that, in six Niya Prakrit occurrences (CKD 182, 309, 376, 435, 621, 634), there is “exactly what is laid down in Pāṇini 3 2 112”. This paper endeavours to demonstrate that such alignment is not entirely accurate, at least according to the traditional interpretation of the rules at stake.
‘God of Gods’
Authors: Barchi Francesco , Peschl Benedikt 
Published: September 2024

Abstract
The Iranian flavour of the Chinese epithet of the Buddha, tianzhong tian 天中天, ‘god among gods,’ and its relationship with the Indo-Aryan parallel devātideva-, ‘foremost god of gods,’ have been repeatedly addressed. Past studies of the origin of the expressions sought to establish an ultimate connection to the Achaemenid royal title ‘king of kings’ (Old Persian xšāyaθiya- xšāyaθiyānām), assuming that the divine epithet was coined based on the royal one. However, the comparative Indo-Iranian evidence speaks for the considerable antiquity of the divine epithet ‘(foremost) god of gods’—Proto-Indo-Iranian *dai̯u̯ānām dai̯u̯a(tama)-, replaced by *bagānām baga(tama-) in Old Iranian—and against its secondary character in relation to ‘king of kings’. The Middle Iranian corpora show a particularly broad usage of ‘god of gods’-like epithets to refer to supreme figures worthy of veneration; the epithet therefore may be considered part of a pan-Iranian religious vocabulary during the first millennium CE. We further make the case that the Buddhist usage of the expression in Middle Iranian languages as well as the appearance of its equivalents in Chinese and Indo-Aryan sources is specifically due to the super-regional influence of a Bactrian prototype, *βαγανο βαγαδαμο.
On the Legitimate Means for Political Action: John Dewey and the Spectator’s View on Politics
Authors: Schuckink Kool Coen 
Published: September 2024

Abstract
As public concern over governmental inaction on climate change grows, it becomes vital to answer the Question of Legitimate Means: what actions can political actors legitimately take to pursue their goals? This paper argues that a particular understanding of the political realm, which I will call the spectator’s view on politics, prevents theorists from confronting this question. Using the philosophy of Noortje Marres, I will demonstrate that the spectator’s view posits a transcendental goal to politics, subordinating any means to the realization of this goal. I will then contrast this view with the political philosophy of John Dewey. Dewey’s approach not only makes it possible to answer the Question of Legitimate Means, but highlights its importance to any democratic project.
Karl Llewellyn as Pragmatist
Authors: Butler Brian E. 
Published: September 2024

Abstract
In this article my aim is to see Karl Llewellyn as a member of the central pragmatist canon. Further, I see Llewellyn not only as a “Legal Pragmatist,” but also as developing a full pragmatist philosophy of law. Reading Llewellyn as a pragmatist would greatly add to an extended understanding of early pragmatism. This would show a strong influence of pragmatic thought within the legal academy.. Second, adding Llewellyn to the pragmatist canon would help show pragmatism in action in the world. Llewellyn might be the central theoretical pragmatist of modern US Law. If, as I believe, pragmatism is a philosophy that depends upon an underlying experimentalist attitude towards philosophizing, given his great influence on US law adding Llewellyn brings a large amount of experimentalist data to the tradition.