bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemically detaching hBN crystals grown at atmospheric pressure and high temperature for high-performance graphene devices
Authors: Ouaj Taoufiq , Kramme Leonard , Metzelaars Marvin , Li Jiahan , Watanabe Kenji , Taniguchi Takashi , Edgar James H , Beschoten Bernd , Kögerler Paul , Stampfer Christoph 
Published: August 2023

Abstract
In this work, we report on the growth of hexagonal boron nitride (hBN) crystals from an iron flux at atmospheric pressure and high temperature and demonstrate that (i) the entire sheet of hBN crystals can be detached from the metal in a single step using hydrochloric acid and that (ii) these hBN crystals allow to fabricate high carrier mobility graphene-hBN devices. By combining spatially-resolved confocal Raman spectroscopy and electrical transport measurements, we confirm the excellent quality of these crystals for high-performance hBN-graphene-based van der Waals heterostructures. The full width at half maximum of the graphene Raman 2D peak is as low as 16 cm−1, and the room temperature charge carrier mobilitiy is around 80 000 cm2/(Vs) at a carrier density 1 × 1012 cm−12. This is fully comparable with devices of similar dimensions fabricated using crystalline hBN synthesized by the high pressure and high temperature method. Finally, we show that for exfoliated high-quality hBN flakes with a thickness between 20 and 40 nm the line width of the hBN Raman peak, in contrast to the graphene 2D line width, is not useful for benchmarking hBN in high mobility graphene devices.
Size-dependent bending and buckling of two-dimensional functionally graded microplates, an artificial neural network approach
Authors: Taghizadeh Mohsen , Mahdavian Mohsen , Askari Amir R 
Published: August 2023

Abstract
The main goal of the present study is to focus on the application of artificial neural network (ANN) in predicting the bending and buckling behaviors of size-dependent small-scale micro-plates. To this end, the recently introduced thick microplates made of two-dimensional functionally graded materials (2D-FGM) with simply supported boundary conditions are considered. Adopting the modified couple stress and third-order shear deformation theories together with the Ritz method, the bending and buckling ANN models, including nine and ten input variables, are trained by two databases containing 8842 and 9980 random data for each of these two analyses, respectively. The selected network has six hidden layers, each of them contains 32 nodes. Employing the present ANN model, whose determination coefficient is 98.6%, the variation of microplate deflection and its buckling load versus the input variables are investigated. It is observed that despite the long run-time and the complexities involved in the solution procedures associated with the governing equilibrium and eigenvalue equations, the ANN models enjoy fast and accurate predictions. The rest of the present work is devoted to optimizing the geometric and material variables of a 2D-FGM microplate with respect to the buckling load via the genetic algorithm (GA) method whose fitness function is evaluated by the trained ANN. The results reveal that the combination of the ANN and GA can be treated as a promising tool for optimizing the geometric and material parameters of a 2D-FGM microplate regarding its buckling load.
GUP-reinforced Hawking radiation in rotating linear dilaton black hole spacetime
Authors: Sucu E , Sakallı İ 
Published: August 2023

Abstract
This article investigates the influence of the Generalized Uncertainty Principle (GUP) on the emission of Hawking quanta in a rotating linear dilaton black hole spacetime. The study proposes a GUP-reinforced black hole thermal emission model that takes into account the quantum tunneling process with GUP effects. The result obtained for the corrected temperature suggests that temperature of the GUP-reinforced Hawking radiation decreases with the increasing GUP parameter and gets higher values with the increasing mass of the black hole. The study also discusses the implications of these findings on the corrected entropy and hence the information loss paradox, and the potential for experimental verification of GUP effects in astrophysical observations. Overall, this work highlights the significant role of GUP in the thermal emission of non-asymptotically flat stationary black holes and can shed light on the intricate interplay between quantum gravity and astrophysics.
Bondi-Hoyle-Lyttleton accretion onto a rotating black hole with ultralight scalar hair
Authors: Cruz-Osorio Alejandro , Rezzolla Luciano , Lora-Clavijo Fabio D. , Font José Antonio , Herdeiro Carlos , Radu Eugen 
Published: August 2023

Abstract
We present a numerical study of relativistic Bondi-Hoyle-Lyttleton (BHL)
accretion onto an asymptotically flat black hole with synchronized
hair. The hair is sourced by an ultralight, complex scalar field,
minimally coupled to Einstein's gravity. Our simulations consider a
supersonic flow parametrized by the asymptotic values of the fluid
quantities and a sample of hairy black holes with different masses,
angular momenta, and amount of scalar hair. For all models, steady-state
BHL accretion solutions are attained that are characterized by the
presence of a shock-cone and a stagnation point downstream. For the
models of the sample with the largest component of scalar field, the
shock-cone envelops fully the black hole, transitioning into a bow-shock,
and the stagnation points move further away downstream. Analytical
expressions for the mass accretion rates are obtained after fitting the
numerical results, which can be used to analyze black-hole formation
scenarios in the presence of ultralight scalar fields. The formation of a
shock-cone leads to regions where sound waves can be trapped and resonant
oscillations excited. We measure the frequencies of such quasi-periodic
oscillations and point out a possible association with quasi-periodic
oscillations in the X-ray light curve of Sgr A* and microquasars.
On the consistency of ΛCDM with CMB measurements in light of the latest Planck, ACT and SPT data
Authors: Calderon Rodrigo , Shafieloo Arman , Kumar Hazra Dhiraj , Sohn Wuhyun 
Published: August 2023

AbstractUsing Gaussian Processes we perform a thorough, non-parametric consistency test of the ΛCDM model when confronted with state-of-the-art TT, TE, and EE measurements of the anisotropies in the Cosmic Microwave Background by thePlanck, ACT, and SPT collaborations. Using ΛCDM's best-fit predictions to the TTTEEE data fromPlanck, we find no statistically significant deviations when looking for signatures in the residuals across the different datasets. The results of SPT are in good agreement with the ΛCDM best-fit predictions to thePlanckdata, while the results of ACT are only marginally consistent. However, when using the best-fit predictions to CamSpec — a recent reanalysis of thePlanckdata — as the mean function, we find larger discrepancies between the datasets. Our analysis also reveals an interesting feature in the polarisation (EE) measurements from the CamSpec analysis, which could be explained by a slight underestimation of the covariance matrix. Interestingly, the disagreement between CamSpec andPlanck/ACT is mainly visible in the residuals of the TT spectrum, the latter favoring a scale-invariant tiltns≃ 1, which is consistent with previous findings from parametric analyses. We also report some features in the EE measurements captured both by ACT and SPT which are independent of the chosen mean function and could be hinting towards a common physical origin. For completeness, we repeat our analysis using the best-fit spectra to ACT+WMAP as the mean function. Finally, we test the internal consistency of thePlanckdata alone by studying the high and low-ℓ ranges separately, finding no discrepancy between small and large angular scales.
Measurement of 169Tm(n, 2n)168Tm reaction cross sections from 12 to 19.8 MeV*
Authors: Zhu 朱 Chuanxin 传新 , Guo 郭 Hairui 海瑞 , Wang 王 Jia 佳 , Zheng 郑 Pu 普 , Lu 鹿 Xinxin 心鑫 , Zhu 朱 Tonghua 通华 
Published: August 2023

Abstract
The cross sections of the 169Tm(n, 2n)168Tm reaction have been measured at incident energies of 12 to 19.8 MeV using the activation technique, relative to the 93Nb(n, 2n)92mNb reaction. Thulium (Tm) samples were irradiated on the surface of a two-ring orientation assembly with neutrons produced from the 3H(d, n)4He reaction at the 5SDH-2 1.7-MV Tandem accelerator in China. Theoretical model calculations were performed. The present data were then compared with previous experimental data and available evaluated data. This study provides more precise nuclear data for improvement of future evaluations.
Photocatalytic activity of visible light active Sr-hexaferrite prepared by solid-state reaction and the pechini methods
Authors: Ayala M F Ramírez , Herrera-González A M , Pérez-Juache T J , Salazar-Muñoz V E , Espericueta D , Cabal-Velarde J G , García-Gallegos J H , Lobo-Guerrero A 
Published: August 2023

Abstract
In this work, strontium hexaferrite (SrFe12O19) was prepared using two different methods, the solid-state reaction and the sol–gel pechini methods. In each case, the structural properties and microstructural features were analyzed in order to evaluate their influence on the photocatalytic activity of the strontium hexaferrite. In addition, the magnetic properties of each sample were also investigated. The analysis of the photocatalytic activity was done using methylene blue as a test dye. The results show that the fabrication method significantly impacts how the photocatalytic activity occurs. Firstly, the bandgap energy of the sample obtained by the solid-state reaction method turned out to be smaller than that obtained by the sol–gel pechini method. This behavior was attributed to the structural differences shown between the two samples. On the other hand, particle size also has a significant effect on photochemical reactions. However, smaller particle sizes make it difficult for photons to transport in the system, resulting in reduced photocatalytic activity. In this case, better results were obtained from the sample obtained from the solid-state reaction method.
DEM-FEM coupling analysis of shot′s energy distribution and target′s residual stress of pneumatic shot peening
Authors: Wu Genshang , Shao Jinggan , He Zhanshu , Ding Saifei , Zhang Zhi , Li Chao , Cong Li 
Published: August 2023

Abstract
Pneumatic shot peening is a widely used surface strengthening method. During the peening process, shots often collide with each other, resulting in large energy loss and small compressive residual stress. In order to achieve the optimum compressive residual stress with as little energy loss as possible, firstly the collision mechanism of shots and the forming and coupling mechanism of the target’s residual stress are revealed, and then pneumatic shot peening is simulated by using DEM-FEM coupling model. Then, the effects of impact angle θ, initial shot velocity v
0, shot diameter d
p, and mass flow rate r
m on the percentage η of shots with different ratios of the impact velocity to initial shot velocity v
m/v
0, the energy loss (EL), the energy transferred from shots to the target (ET), the residual energy (ER) and the compressive residual stress (RS) are investigated. The results show that as many random shots successively impact the target, the RS field induced by each shot couples with some adjacent RS fields induced by other shots, so that disperse RS fields are gradually transformed into a continuous RS layer with the compressive RS in the surface and the tensile RS in the subsurface. With the increase of θ and r
m and with the decrease of v
0 and d
p, the collision probability of shots increases, so EL also increases and η of shots with a large v
m/v
0 decreases. While, ET increases with the increase of v
0 and d
p, decreases with the increase of r
m, and first increases and then decreases with the increase of θ. ET does not entirely determine but greatly affects the compressive RS field. So, the surface compressive RS and the maximum compressive RS first increase and then decrease with the increase of θ and r
m, while the two parameters increase with the increase of v
0 and d
p. The optimum parameters of shots are θ = 75°, v
0 = 60 m s−1, d
p = 0.25 mm and r
m = 2 kg min−1, in which ET reaches 45%, the surface compressive RS of S11 and S33 reach 512 MPa and 510 MPa respectively, and the maximum compressive RS of S11 and S33 reach 665 MPa and 746 MPa respectively.
Diagnostics of quantum-gate coherences deteriorated by unitary errors via end-point-measurement statistics
Authors: Gianani Ilaria , Belenchia Alessio , Gherardini Stefano , Berardi Vincenzo , Barbieri Marco , Paternostro Mauro 
Published: August 2023

Abstract
Quantum coherence is a central ingredient in quantum physics with several theoretical and technological ramifications. We consider a figure of merit encoding the information on how the coherence generated on average by a quantum gate is affected by unitary errors (coherent noise sources) in the form of rotation-angle and rotation-axis errors. We provide numerical evidences that such information is well captured by the statistics of local energy measurements on the output states of the gate. These findings are then corroborated by experimental data taken in a quantum optics setting.
Erythritol aggravates gut inflammation and anxiety-like behavioral disorders induced by acute dextran sulfate sodium administration in mice
Authors: Jiang Yuzhi , Yin Hailing , Wang Hongyu , Tao Ting , Zhang Yong 
Published: August 2023

ABSTRACT
Erythritol is a widely used sugar substitute in food and beverages with beneficial and detrimental roles in obesity and cardiovascular diseases, respectively; however, its influence on inflammatory bowel disease (IBD) and related behavioral disorders is not well understood. Here, we found that erythritol exacerbated gut inflammation by promoting macrophage infiltration and inducing M1 macrophage polarization, thus increasing gut leakage during colitis triggered by acute dextran sulfate sodium (DSS) treatment. Increased gut permeability can cause neuroinflammation and anxiety-like behavioral disorders. In conclusion, our results revealed a negative role for erythritol in gut inflammation and anxiety-like behavioral disorders induced by erythritol administration in a mouse model of acute colitis, suggesting that erythritol intake control may be necessary for IBD treatment.
The centre-calculated cutoff value is better for identifying fast peritoneal solute transfer of patients on peritoneal dialysis than the traditional value: a retrospective cohort study
Authors: Guo Jing , Liu Ruihua , Peng Yuan , Yi Chunyan , Wu Haishan , Ye Hongjian , Lin Jianxiong , Diao Xiangwen , Huang Fengxian , Mao Haiping , Guo Qunying , Yang Xiao 
Published: August 2023

ABSTRACT

Background
The mean 4-h dialysate to plasma ratio of creatinine (4-h D/Pcr) is a vital cutoff value for recognizing the fast peritoneal solute transfer rate (PSTR) in patients on peritoneal dialysis (PD); however, it shows a noticeable centre effect. We aimed to investigate our centre-calculated cutoff value (CCV) of 4-h D/Pcr and compare it with the traditional cutoff value (TCV) (0.65).

Methods
In this study, we enrolled incident PD patients at our centre from 2008 to 2019, and divided them into fast or non-fast PSTR groups according to baseline 4-h D/Pcr–based CCV or TCV. We compared the efficiency of the fast PSTR recognized by two cutoff values in predicting mortality, ultrafiltration (UF) insufficiency and technical survival.

Results
In total, 1905 patients were enrolled, with a mean 4-h D/Pcr of 0.71 ± 0.11. Compared with TCV (0.65), CCV (0.71) showed superiority in predicting mortality of PD patients [hazard ratio (HR) 1.27, 95% confidence interval (CI) 1.02–1.59 vs HR 1.24, 95% CI 0.97–1.59]. The odds ratio (OR) of the fast PSTR in centre classification was slightly higher than traditional classification in predicting UF insufficiency (OR 1.67, 95% CI 1.25–2.24 vs OR 1.60, 95% CI 1.15–2.22). Additionally, the restricted cubic splines 4-h D/Pcr has an S-shaped association with mortality and UF insufficiency, and the inflection points of 4-h D/Pcr were 0.71 (equal to CCV).

Conclusions
The CCV of 4-h D/Pcr for identifying fast PSTR was 0.71. It was superior to TCV in predicting mortality and UF insufficiency.
Short-term Psychodynamic Psychotherapy in Addition to Standard Medical Therapy Increases Clinical Remission in Adolescents and Young Adults with Inflammatory Bowel Disease: a Randomised Controlled Trial
Authors: Milo Francesco , Imondi Chiara , D’Amore Carmen , Angelino Giulia , Knafelz Daniela , Bracci Fiammetta , Dall’Oglio Luigi , De Angelis Paola , Tabarini Paola 
Published: August 2023

Abstract

Background
Inflammatory bowel diseases [IBD] are chronic and pervasive conditions of the gastrointestinal tract with a rising incidence in paediatric and young adult populations. Evidence suggests that psychological disorders might be associated with relapse of disease activity. This study aims to evaluate the efficacy of short-term psychodynamic psychotherapy [STPP] in addition to standard medical therapy [SMT] in maintaining clinical remission in adolescents and young adults [AYA] with quiescent IBD, compared with SMT alone.

Methods
A two-arm, single-centre, randomised, controlled trial was conducted in 60 IBD AYA in clinical remission. Patients were randomised to receive an 8-week STPP + SMT [n = 30] or SMT alone [n = 30]. The primary outcome was the steroid-free remission rate at 52 weeks after treatment. Secondary outcomes included the overall hospitalisation rate within 52 weeks after treatment, and medication adherence obtained from patient’s electronic medical records.

Results
Intention-to-treat analysis showed significant improvement in maintaining disease remission rates in the 8-week STPP + SMT group compared with the control one. The proportion of patients maintaining steroid-free remission at 52 weeks was higher in patients in STTP group [93.1%] compared with patients randomised to control group [64.3%; p = 0.01]. There were no significant differences in secondary outcomes, except for depression reduction in STPP + SMT group.

Conclusions
An 8-week STPP intervention in addition to SMT effectively increases the steroid-free remission rates in AYA with quiescent IBD. Results do not support effects for other secondary outcomes, except for depression reduction.
Temporal patterns of pre- and post-natal target organ damage associated with hypertensive pregnancy: a systematic review
Authors: Cutler Hannah Rebecca , Barr Logan , Sattwika Prenali Dwisthi , Frost Annabelle , Alkhodari Mohanad , Kitt Jamie , Lapidaire Winok , Lewandowski Adam James , Leeson Paul 
Published: August 2023

Abstract

Aims
Hypertensive pregnancy is associated with increased risks of developing a range of vascular disorders in later life. Understanding when hypertensive target organ damage first emerges could guide optimal timing of preventive interventions. This review identifies evidence of hypertensive target organ damage across cardiac, vascular, cerebral, and renal systems at different time points from pregnancy to postpartum.

Methods and results
Systematic review of Ovid/MEDLINE, EMBASE, and ClinicalTrials.gov up to and including February 2023 including review of reference lists. Identified articles underwent evaluation via a synthesis without meta-analysis using a vote-counting approach based on direction of effect, regardless of statistical significance. Risk of bias was assessed for each outcome domain, and only higher quality studies were used for final analysis. From 7644 articles, 76 studies, including data from 1 742 698 pregnancies, were identified of high quality that reported either blood pressure trajectories or target organ damage during or after a hypertensive pregnancy. Left ventricular hypertrophy, white matter lesions, proteinuria, and retinal microvasculature changes were first evident in women during a hypertensive pregnancy. Cardiac, cerebral, and retinal changes were also reported in studies performed during the early and late post-partum period despite reduction in blood pressure early postpartum. Cognitive dysfunction was first reported late postpartum.

Conclusion
The majority of target organ damage reported during a hypertensive pregnancy remains evident throughout the early and late post-partum period despite variation in blood pressure. Early peri-partum strategies may be required to prevent or reverse target organ damage in women who have had a hypertensive pregnancy.
The Fish Pathogen “CandidatusClavichlamydia salmonicola”—A Missing Link in the Evolution of Chlamydial Pathogens of Humans
Authors: Collingro Astrid , Köstlbacher Stephan , Siegl Alexander , Toenshoff Elena R , Schulz Frederik , Mitchell Susan O , Weinmaier Thomas , Rattei Thomas , Colquhoun Duncan J , Horn Matthias 
Published: August 2023

AbstractChlamydiae like Chlamydia trachomatis and Chlamydia psittaci are well-known human and animal pathogens. Yet, the chlamydiae are a much larger group of evolutionary ancient obligate intracellular bacteria that includes predominantly symbionts of protists and diverse animals. This makes them ideal model organisms to study evolutionary transitions from symbionts in microbial eukaryotes to pathogens of humans. To this end, comparative genome analysis has served as an important tool. Genome sequence data for many chlamydial lineages are, however, still lacking, hampering our understanding of their evolutionary history. Here, we determined the first high-quality draft genome sequence of the fish pathogen “Candidatus Clavichlamydia salmonicola”, representing a separate genus within the human and animal pathogenic Chlamydiaceae. The “Ca. Clavichlamydia salmonicola” genome harbors genes that so far have been exclusively found in Chlamydia species suggesting that basic mechanisms important for the interaction with chordate hosts have evolved stepwise in the history of chlamydiae. Thus, the genome sequence of “Ca. Clavichlamydia salmonicola” allows to constrain candidate genes to further understand the evolution of chlamydial virulence mechanisms required to infect mammals.