bluuebunny/crossref_metadata_2025_split huggingface dataset:
Room temperature photosensitive ferromagnetic semiconductor using MoS2
Authors: Lu Jingjing , Xu Yan , Cui Jingsong , Zhang Peng , Zhou Chenxi , Singh Hanuman , Zhang Shuai , You Long , Hong Jeongmin 
Published: April 2024

AbstractTwo-dimensional semiconductors, including transition metal dichalcogenides (TMDs), are of interest in electronics and photonics but remain nonmagnetic in their intrinsic form. Atomic modulation using physical and chemical ways is an effective means to control the physical properties such as magnetic and electrical properties of two-dimensional materials which can be controlled by irradiation. Here we treat mechanically exfoliated MoS2 with a helium ion beam, which exhibits semiconducting and ferromagnetic ordering at room temperature, while Monte Carlo simulations and theoretical calculations confirmed that the control of nanoholes result in the presence of magnetism. In addition, the irradiation results of multilayer MoS2 show that the magnetic moment increases with the increase of 10 layers. The conductivity remains virtually unchanged before and after being treated by a helium ion beam. The treated MoS2 spintronic device displays the switch of ‘on/off” under the light, magnetic field, and/or electric field, which means 2D photosensitive ferromagnetic semiconductor functions are successfully demonstrated at room temperature.
Impact of prematurity on lifelong cardiovascular health: structural and functional considerations
Authors: Sixtus Ryan P. , Dyson Rebecca M. , Gray Clint L. 
Published: April 2024

AbstractThe aetiology of preterm cardiovascular disease formation appears different from that of traditional population. Within the ‘traditional’ population cardiovascular disease formation is driven by functional stressors (e.g., diet, smoking). Whereas preterm cardiovascular disease risk is driven by structural changes incurred at birth. Much of the proliferative growth in the developing heart and major vessels ceases at birth, leading to permanently reduced dimensions compared to their term-born cohort. These structural changes take a back seat to functional and clinical complications within the neonatal period, but become increasingly pronounced from adolescence, at which point functional decompensation can be observed. While the cause may differ from ‘traditional’ populations, the eventual disease outcomes do not, leading them to be an overlooked population. This means that aetiology, and thus, treatment options may be very different due to the underlying mechanisms. Here, we propose that the structural cause of preterm-associated cardiovascular disease is apparent and observable early in life. Understanding the differences in cardiovascular disease aetiology may therefore aid in the early treatment of preterm-associated cardiovascular disease risk.
Second‐harmonic current reduction of dual active bridge with triple‐phase shift in two‐stage single‐phase inverter system
Authors: Li Jin , Zhang Yuming , Tang Weiyi 
Published: April 2024

AbstractThis article proposes a method to effectively suppress second‐harmonic current (SHC) of dual active bridge (DAB) converter, which adopts the triple‐phase shift (TPS) modulation strategy, in two‐stage single‐phase inverter system. Load current feedforward control with twice the output voltage frequency notch filter inserted is introduced to ensure the dynamic response performance. The averaged model of the system is established to analyse the influence of output impedance of front‐end DAB converter on SHC from the perspective of impedance. The proposed method does not need to consider the accuracy of the intermediate bus capacitance. Finally, an experimental prototype was established to verify the correctness and effectiveness of the proposed SHC reduction method.
Renewable energy hosting capacity assessment in distribution networks based on multi‐strategy improved whale optimization algorithm
Authors: Dong Chongwu , Yu Tao , Pan Zhenning , Wu Yufeng , Wang Ziyao , Wang Yipeng , Wang Keying 
Published: April 2024

AbstractThe increasing penetration of distributed renewable energy poses significant challenges to the safety and stability of distribution system, rendering the renewable energy hosting capacity of distribution networks a major concern. To effectively evaluate the renewable energy hosting capacity in distribution networks, this paper introduces a comprehensive hosting capacity assessment model considering various safety and stability constraints. Given the numerous non‐linear constraints inherent in the hosting capacity assessment model for distribution networks, a multi‐strategy improved Whale Optimization Algorithm is proposed. Improvements are made to the population initialization and population position update strategies, and a mutation strategy is introduced to prevent premature convergence, thereby enhancing the algorithm's performance. Finally, the effectiveness of the proposed model and the method is validated through the utilization of three distribution systems. Moreover, the key factors that restrict the improvement of hosting capacity are revealed from the perspective of distribution network topology.
Effects of non-continuous inverse Compton cooling in blazars
Authors: Dmytriiev A. , Böttcher M. 
Published: April 2024

Context. Blazar flares provide a window onto the extreme physical processes occurring in relativistic outflows. Most numerical codes used for modelling blazar emission during flares use a simplified continuous-loss description of particle cooling due to the inverse Compton (IC) process, neglecting non-continuous (discrete) effects that arise in the Klein–Nishina (KN) regime. The significance of such effects has not yet been explored in detail.
Aims. In this study, we investigate the importance of non-continuous Compton cooling losses and their impact on the electron spectrum and spectral energy distribution (SED) of blazars during high flux states (flares), as well as in the low state.
Methods. We solve the full transport equation numerically, accounting for large relative jumps in energy by extending our existing blazar flare modelling code EMBLEM. We perform a detailed physical modelling of the brightest γ-ray flare of the archetypal flat-spectrum radio quasar (FSRQ) 3C 279 detected in June 2015. We then compare results obtained using the full cooling term and using the continuous-loss approximation.
Results. We show that during flaring states of FSRQs characterised by high Compton dominance, the non-continuous cooling can lead to significant modification of the electron spectrum, introducing a range of distinct features, such as low-energy tails, hardening and/or softening, narrow and extended particle excesses, and shifts in the cooling break position. Such distortion translates to differences in the associated SED of up to ∼50%. This highlights the importance of non-continuous effects and the need to consider them in blazar emission models, particularly applied to extreme γ-ray flares.
Advancements in the 3D shape reconstruction of Phobos: An analysis of shape models and future exploration directions
Authors: Chen Min , Yan Jianguo , Huang Xianfeng , Zuo Zheng , Willner Konrad , Xiang Hanyu , Barriot Jean-Pierre 
Published: April 2024

Aims.Our research focuses on developing a high-precision and relatively high-resolution shape model of Phobos.Methods.We employed advanced photogrammetric techniques combined with novel computer vision methods to reconstruct the 3D shape of Phobos from nearly 900 Mars Express/SRC and Viking Orbiter images. This research also involved a comparison of the newly developed shape model with previous models to identify differences for future missions.Results.This shape model was used to generate new measurements of the volume (5740 ± 30) km3, the surface area (1629 ± 8) km2, and the bulk density (1847 ± 11) kg m−3of Phobos. By comparing our reconstructed shape model with prior models, we have identified key differences, especially in areas such as the Opik crater and near the Shklovsky crater. These findings highlight critical areas that warrant further investigation in future missions dedicated to exploring Phobos.
Management von Patienten mit akutem Koronarsyndrom und koronarer Mehrgefäßerkrankung
Authors: Feistritzer Hans-Josef , Jobs Alexander , Thiele Holger 
Published: April 2024

ZusammenfassungDer Anteil an Patienten mit koronarer Mehrgefäßerkrankung bei Patienten mit akutem Koronarsyndrom (ACS) variiert je nach Alter und Risikokonstellation. Bei Patienten mit ST-Strecken-Hebungsinfarkt (STEMI) wurde der prognostische Vorteil der vollständigen Revaskularisation in mehreren randomisierten Studien gezeigt. Entsprechende Daten fehlen bisher bei Patienten mit akutem Koronarsyndrom ohne ST-Strecken-Hebungen (NSTE-ACS), eine große randomisierte Studie ist jedoch vor Kurzem gestartet. Im infarktbedingten kardiogenen Schock ist die frühe Revaskularisation die einzige, mit in randomisierten Studien belegten Daten, prognoseverbessernde Therapie, allerdings sollte sich in der Akutphase die perkutane Koronarintervention (PCI) auf die Culprit Lesion beschränken.
From doing work on your own talk to doing work on others’ talk
Authors: Schirm Sam 
Published: April 2024

Abstract
Research on L2 interactional competence (IC) has become increasingly focused on how L2 speakers develop and
recalibrate linguistic resources to do interactional work, i.e., how L2 speakers develop a
grammar-for-interaction (Pekarek Doehler 2018). In this paper, I
use interactional linguistics to track one L2 German speaker’s IC development over 11 months by analyzing her use of German
also (English ‘so’) in formulations (see Deppermann 2011; Heritage & Watson 1979, 1980). In initial
months, the L2 speaker uses also exclusively to do work on her own prior talk, e.g., in upshots, consequences,
and unpackings. The L2 speaker’s initial also uses contribute to moves that maintain intersubjectivity by
ensuring her co-interactant’s understanding of her own talk. In later months, the L2 speaker diversifies her uses of
also, including uses oriented to co-interactants’ prior talk that address manifest problems of
intersubjectivity: to preface an other-correction of an incorrect candidate understanding, and to preface turns addressing a
co-interactant’s problem of understanding. The L2 speaker’s changing also uses demonstrate her ability to
contribute to interactional organization in increasingly diverse ways, evidencing a developing grammar-for-interaction. I end by
calling for more research on the L2 development of linguistic resources that primarily serve interactional functions, such as
particles.
Transcending medical consultations
Authors: Álvaro Aranda Cristina 
Published: April 2024

Abstract
The role of healthcare interpreters has attracted much interest over the years, with particular emphasis on the
distance between an invisible, uninvolved prescribed behaviour that contrasts with the interpreters’ behaviour in practice as
active participants. However, much of the existing literature focuses on unfolding medical consultations where providers, patients
and interpreters are simultaneously present, often overlooking situations when interpreters are left alone with patients. This
involves areas of special role complexity in which interpreters must choose whether or not to become visible to the patient in
what has been defined as the in-between (Shaffer, 2020). This contribution aims to
observe the healthcare interpreter’s role beyond the very act of the medical interview. Inspired by Shaffer (2020), we examine 66 moments “in-between” involving a sample of six interpreters (including four
student interns) that took place prior, mid and end of consultations in a Spanish hospital. Rather than staying invisible, our
analysis reveals that interpreters of the sample often participate in moments in-between (89.39%) to enact different roles (i.e.,
companion/confidant, advocate for the profession, mediator, institutional navigator, and healthcare ambassador). Among other
aspects, triggers for role adoption in the in-between space include preventing conflict and deploying empathy. In this study, the
behaviour of interpreters has demonstrated to influence the subsequent development of medical consultations (e.g., saving time or
facilitating history taking). In light of preliminary findings that must be interpreted considering our research context, the next
step is to examine how the healthcare interpreter’s behaviour in the in-between zone can facilitate interprofessional
collaboration to provide patients with quality-care.
Motile aeromonas septicaemia infection in African catfish (
Clarias gariepinus
, Burchell, 1822): A review
Authors: Omeje Victor Okonkwo , Kolndadacha Oscar Dahenji 
Published: April 2024

Abstract

African catfish,
Clarias gariepinus,
is among the important fish species cultured in sub-Saharan Africa. Because of the high stocking densities commonly seen in culture facilities, disease-causing organisms such as
Aeromonas hydrophila
is prevalent among cultured
C. gariepinus
.
A. hydrophila
is one of the Gram-negative bacteria commonly encountered in an aquatic environment worldwide. The organism has been associated with several disease conditions in fish including tail rot, fin rot and haemorrahagic septicaemia. The bacterium also infects a variety of aquatic, terrestrial and arboreal animals including man. The objective of this study was to systematically review the relevant literature on
A. hydrophila
infection in
C. gariepinus
. The study has analysed the current status of the disease, its epidemiology, clinical manifestations and pathology, and suggested methods to mitigate its impacts on fish production, especially in low-income developing countries.
Contrast source inversion of sparse targets through multi-resolution Bayesian compressive sensing
Authors: Salucci Marco , Poli Lorenzo , Zardi Francesco , Tosi Luca , Lusa Samantha , Massa Andrea 
Published: April 2024

Abstract
The retrieval of non-Born scatterers is addressed within the contrast source inversion (CSI) framework by means of a novel multi-step inverse scattering method that jointly exploits prior information on the class of targets under investigation and progressively-acquired knowledge on the domain under investigation. The multi-resolution (MR) representation of the unknown contrast sources is iteratively retrieved by applying a Bayesian compressive sensing (BCS) sparsity-promoting approach based on a constrained relevance vector machine solver. Representative examples of inversions from synthetic and experimental data are reported to give some indications on the reliability and the robustness of the proposed MR-BCS-CSI method. Comparisons with recent and competitive state-of-the-art alternatives are reported, as well.
A method for semi-empirical calculation of isospin mixing probability in nuclei
Authors: Sarkar Sukhendusekhar 
Published: April 2024

Abstract
A method has been proposed for an isolated two-level model calculation of isospin mixing probability in nuclei. It uses minimum experimental inputs. This method is capable of locating the unperturbed levels of an observed isospin mixed doublet. Isospin mixing probabilities, unperturbed level energies of the observed doublets and isospin mixing matrix elements are calculated for five self-conjugate isotopes of (Mg, P, S, Cl, Ar). Using experimental Gamow-Teller strength data, large isospin mixing probability (

39.572

−
8.271

+
9.082

%) has been found in the observed doublet (1+, 1+) at 9828.0 and 9965.3 keV, respectively, in 24Mg. This is probably the largest isospin mixing ever found in a nucleus. This is much larger than that

(

20.000

−
9.904

+
9.142

%) has been found recently in non self-conjugate 26Si sd-shell nucleus. This is also larger than that

(

27.5

+
2.5

−
2.5

%) has been measured in non self-conjugate fp-shell nucleus 55Ni. Calculated mixing probability in 24Mg has been used to predict the unknown Gamow-Teller strength for the transitions from the levels of 24Al and 24Alm to the levels in 24Mg. The method is general enough to be applicable to other two-level model applications.
Atom pair bond approach: an efficient method for determining the lattice parameters of NiAs-type compounds and comparative analysis with computational databases
Authors: Bhattacharya Devaparna , Akhil T , Bai V Seshu , Rajasekharan T 
Published: April 2024

Abstract
Comparison of EOS properties such as lattice parameters, bulk modulus, etc calculated by density functional theory (DFT) with experiments is used, in general, to assess the precision reachable in computations, when using different codes and potentials. DFT calculations using a large number of codes and potentials by different groups, have reported excellent precision (0.02 Å) in the lattice parameters of 71 elements. It is of interest to study the precision levels reachable in compounds of hexagonal NiAs type crystal structure, in which a wide range of electrical conductivity and magnetic order are found to occur. In this study, lattice parameters for 42 intermetallic compounds of the NiAs type structure are determined from internal radii using the Atom Pair Bond method. These values are compared with the lattice parameters reported from the high throughput DFT computational techniques such as AFLOW and Materials Project compilations. Precision in lattice parameters obtainable in the three methods is assessed in comparison with those reported from the experiments. Selection of a set of compounds of same crystal structure brings out the role of differences in the electronic structure of elements involved. In the APB method, lattice parameters are obtained by the best-fit equations defined by radii change in a large number of compounds with a particular structure, and do not involve several approximations, unlike in DFT. It is interesting to see that the simple APB approach could estimate lattice parameters with accuracies comparable to DFT methods.
Revealing photoluminescence and nonlinear optical absorption characteristics of PbMo0.75W0.25O4 single crystal for optical limiting applications
Authors: Doğan Anıl , Karatay Ahmet , Isik Mehmet , Yildiz Elif Akhuseyin , Gasanly Nizami , Elmali Ayhan 
Published: April 2024

Abstract
Nonlinear absorption properties of PbMo0.75W0.25O4 single crystal fabricated by the Czochralski method were studied. The band gap energy of the crystal was determined as 3.12 eV. Urbach energy which represents the defect states inside the band gap was found to be 0.106 eV. PbMo0.75W0.25O4 single crystal has a broad photoluminescence emission band between 376 and 700 nm, with the highest emission intensity occurring at 486 nm and the lowest intensity peak at 547 nm, depending on the defect states. Femtosecond transient absorption measurements reveal that the lifetime of localized defect states is found to be higher than the 4 ns pulse duration. Open aperture (OA) Z-scan results demonstrate that the PbMo0.75W0.25O4 single crystal exhibits nonlinear absorption (NA) that includes two-photon absorption (TPA) as the dominant mechanism at the 532 nm excitations corresponding to 2.32 eV energy. NA coefficient (β

eff
) increased from 7.24 × 10−10 m W−1 to 8.81 × 10−10 m W−1 with increasing pump intensity. At higher intensities β

eff
tends to decrease with intensity increase. This decrease is an indication that saturable absorption (SA) occurred along with the TPA, called saturation of TPA. The lifetime of the defect states was measured by femtosecond transient absorption spectroscopy. Saturable absorption behavior was observed due to the long lifetime of the localized defect states. Closed aperture (CA) Z-scan trace shows the sign of a nonlinear refractive index. The optical limiting threshold of PbMo0.75W0.25O4 single crystal at the lowest intensity was determined as 3.45 mJ/cm2. Results show that the PbMo0.75W0.25O4 single crystal can be a suitable semiconductor material for optical limiting applications in the visible region.
4D printing and annealing of PETG composites reinforced with short carbon fibers
Authors: Rahmatabadi Davood , Soleyman Elyas , Fallah Min Bashi Mahshid , Aberoumand Mohammad , Soltanmohammadi Kianoosh , Ghasemi Ismaeil , Baniassadi Majid , Abrinia Karen , Bodaghi Mahdi , Baghani Mostafa 
Published: April 2024

Abstract
In this study, for the first time, post-heat treatment was applied to improve the stress recovery of short carbon fiber reinforced PETG (SCFRPETG). PETG and SCFRPETG composite were printed under optimal conditions, and constrained and free shape memory cycles were applied under compression and three-point bending loadings to assess shape and stress recovery. The results of the free shape memory test for both vertical and horizontal patterns showed that PETG composite also has a higher shape memory effect (SME) compared to PETG. The SME was significantly improved by performing heat treatment. The stress recovery values for pure PETG, reinforced PETG before and after annealing are 2.48 MPa, 3.04 MPa and 3.18 MPa, respectively. It showed that the addition of 1.5% carbon fiber increases the stress recovery by 22%. The increasing trend reaches 28% by performing post-heat treatment. Additionally, altering the printing pattern affects the programming and stress recovery values. For the SCFRPETG composite samples before and after annealing, changing the printing pattern from horizontal to vertical, resulted in a 16% and 7% increase in recovery stress, respectively. SEM results confirm that the annealing process removes the layered structure, micro-holes caused by shrinkage and 4D printing mechanism. Using the controlled heat treatment method can be a practical solution to solve the problem of adhesion and reduce the anisotropy of FDM 3D printed layers.
Enhanced structural, magnetodielectric, and multiferroic response in Fe and Co Co-doped Barium strontium titanate ceramics
Authors: Khan Arbaz Reyaz , Goel Rahul , Gupta Aayush , Tripathi Harshit , Kumar Naveen , Bhardwaj Sumit , Kumar Sanjeev , Sharma Indu , Kumar Gagan , Sharma Pankaj , Kumar Sanjeev 
Published: April 2024

Abstract
In this paper, the ambient temperature multiferroic effect resulting from the incorporation of transition metal ions (Fe3+ and Co2+) in lead-free BST [

Ba

0.7

Sr

0.3

(

Fe

x
/
2

Co

x
/
2

)

Ti

1
−
x

O

3

;
x
=
0
,
0.0
1
,
0.03
,
0.05
,
0.07

] ceramics synthesized via the solid-state reaction (SSR) procedure has been thoroughly analyzed. The investigation consistently scrutinized the effects of augmenting transition metal co-doping on the structural, ferroelectric, dielectric, magnetic, and magnetodielectric characteristics. The x-ray diffraction (XRD) patterns for all ceramic compositions demonstrated the formation of a monophasic (P4mm) crystalline structure. The Raman analysis evidenced the presence of various modes, which are associated with the occurrence of the single-phase and provide strong corroboration for the x-ray diffraction observations. Scanning electron micrographs reveals that the inclusion of transition metal ions results in the diminution of grain size. The frequency-dependent dielectric characteristics were represented over the frequency range of 1 kHz to 1 MHz. The P-E hysteresis curves demonstrate a consistent reduction in the values of Ps and Pr, whereas, the M-H curve reveals the enhancement in magnetic properties with increased doping. The magnetodielectric analysis confirmed the interplay between the ferroelectric and ferromagnetic ordering. The BST-1CF sample exhibited the highest MC % value of 5.30% along with the magnetoelectric coupling coefficient ‘γ’ of

−
6.0
1
×

10

−
1

(
memu
/
g
)

−
2

,

making it a favorable entrant for the advancement of innovative non-volatile multiferroic memory gadgets.