bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pulmonary Hypertension and Necrotizing Enterocolitis in Neonates Treated with Diazoxide
Authors: Duggal Mounya , Moore Shiran S. , Simoneau Jessica , Girard Gabrielle , Gernet Irène B. , Oettingen Julia E. Von , Sant'Anna Guilherme , Altit Gabriel 
Published: March 2023

Objective This study aimed to evaluate the prevalence of adverse outcomes, specifically pulmonary hypertension (PH) and suspected or confirmed necrotizing enterocolitis (NEC), and their associated risk factors, in neonates treated with diazoxide.
Study Design A retrospective study in infants born ≥ 316/7 weeks and admitted between January 2014 and June 2020. Combined adverse outcomes possibly associated to diazoxide were PH (systolic pulmonary pressure of ≥40 mm Hg or an eccentricity index ≥1.3) and suspected or confirmed NEC (suspected: stop feeds and antibiotics and confirmed: modified Bell stage ≥2). Echocardiography data extractors were masked to infants' characteristics.
Results A total of 63 infants were included; 7 (11%) with suspected and 1 (2%) with confirmed NEC. Of the 36 infants with an available echocardiography after initiation of diazoxide treatment, 12 (33%) had PH. All infants with suspected or confirmed NEC were males (p = 0.01), whereas PH occurred mostly in females (75%, p = 0.02). The combined adverse outcome occurred in 14/26 (54%) infants exposed to >10 mg/kg/day, compared to 6/37 (16%) exposed to ≤10 mg/kg/day (p = 0.006). This association remained significant after adjustment for sex, small for gestational age status, and gestational age at birth (odds ratio: 6.1, 95% confidence interval: 1.7–21.7, p = 0.005). Left ventricular dysfunction was found in 19 infants (30%) but was not discriminative for the combined outcome.
Conclusion PH and suspected or confirmed NEC were identified frequently in neonates treated with diazoxide. A total dose >10 mg/kg/day was associated with an increased occurrence of these complications.
Key Points
Static modeling and experimental analysis of three-degree-of-freedom pneumatic flexible arm
Authors: Wang Xia , Geng Dexu , Peng He , Zhang Lizhong 
Published: March 2023

Aiming at the problems of weak driving ability and low torsional stiffness of a pneumatic flexible arm, a new type of pneumatic flexible arm is developed using three fan-shaped driving cavities and convex–concave nested constraint ring structure. A prototype was constructed, and a static model of the elongation and bending characteristics of the flexible arm was established. In addition, static experiments were conducted. Through the comparative analysis of experiment and theory, the results show that the experimental data are basically consistent with the theory, which verifies the correctness of the theoretical model. When the elongation was 0 mm and the three fan-shaped driving cavities were filled with the same air pressure of 0.25 MPa, the driving force was 2087.3N; when the three fan-shaped driving cavities were filled with the same air pressure of 0.11 MPa, the flexible arm reached a maximum elongation of 140 mm and elongation percentage of 61.9%. The proposed flexible arm could be controlled to bend in any direction in the range of 0°–360° and at any angle in the range of 0°–98° by adjusting the pressure of the three fan-shaped driving cavities. The flexible arm overcomes the shortcomings of the weak driving ability and anti-torsion ability of the flexible robot and has strong flexibility. It can be used in flexible robots in the fields of service, medical treatment, and rescue and other operations to provide greater power and reliable support for manipulators and other actuators.
Imaging incidence and type in primary care patients with low back pain: a cross-sectional study on new referrals to an Australian specialist spinal surgical centre
Authors: Tennant Isaac J. , Yau Yun-Hom , Yull Derek , Murphy Peter , Whittle Ian R. 
Published: March 2023

Introduction Low back pain (LBP) is common and a significant cause of morbidity. Many patients receive inappropriate imaging for LBP in primary care. Aim To explore the incidence and type of spinal imaging conducted for LBP patients referred from general practice for specialist surgical opinion, and evaluate whether imaging conformed to clinical guidelines. Methods Audit of a sequential cohort (n = 100) of new LBP patients referred from primary care for specialist opinion at a suburban Australian capital city independent Spinal Centre. Results In the 6 months before referral, 90% (95% CI 83–95%) of patients underwent spinal imaging. Imaging was performed in 95% of those who did and 79% of those who did not meet guidelines for radiological investigation. 35% of patients were inappropriately imaged and 3% inappropriately not imaged. Spinal computed tomography (CT) imaging was used in 52% of patients, magnetic resonance imaging (MRI) in 42% and image-guided lumbar spinal interventional procedures in 28%. Discussion Most patients with LBP referred for surgical opinion have diagnostic radiological investigations whether or not it is indicated by clinical guidelines. The more frequent use of spinal CT compared to MRI may be due to idiosyncrasies of the Australian Medicare Benefits Schedule (MBS) rebate system. The findings of this pilot study provide support for the changes recommended by the 2016 MBS Review Taskforce on LBP that permit GP access to subsidised lumbar MRI, while constraining access to lumbar CT, and provide novel data about spinal imaging and practice in this cohort of patients.
Principles of New Science
Authors: Weigand Edda 
Published: March 2023

AbstractThe current state of the art in Dialogue Analysis represents a multitude of diverse models of dialogue, communication, pragmatics, discourse, interaction, organization, and management, which claim to be science or philosophy. Can we indeed expose science and philosophy to arbitrary decisions on issues and methodology? As soon as our object becomes ‘dialogue in the stream of life’, science faces the issue of complexity. The challenge is to develop a new type of science which is capable of grasping the complex whole and deriving the components from it. New Science asscience of complexityalso demonstrates how science and philosophy can be united by description and explanation in science and evaluation and recommendation in philosophy.
Towards anisotropic cosmology in group field theory
Authors: Calcinari Andrea , Gielen Steffen 
Published: March 2023

AbstractIn cosmological group field theory (GFT) models for quantum gravity coupled to a massless scalar field the total volume, seen as a function of the scalar field, follows the classical Friedmann dynamics of a flat Friedmann–Lemaître–Robertson–Walker Universe at low energies while resolving the Big Bang singularity at high energies. An open question is how to generalise these results to other homogeneous cosmologies. Here we take the first steps towards studying anisotropic Bianchi models in GFT, based on the introduction of a new anisotropy observable analogous to theβvariables in Misner’s parametrisation. In a classical Bianchi I spacetime,βbehaves as a massless scalar field and can be used as a (gravitational) relational clock. We construct a GFT model for which in an expanding Universeβinitially behaves like its classical analogue before ‘decaying’ showing a previously studied isotropisation. We support numerical results in GFT by analytical approximations in a toy model. One possible outcome of our work is a definition of relational dynamics in GFT that does not require matter.
Thermal environment analysis for TianQin: III. Low-frequency thermal transfer inside the flat-top sun shield
Authors: Chen Houyuan , Ding Yanwei , Pan Jiajian , Ling Chen , Sun Zening , Gu Lingyun , Zhao Xin , Tong Yelong 
Published: March 2023

Abstract
Flat-top Sun shield is a part of the disturbance reducing system on the space-based gravitational wave detector TianQin. The Sun shield is expected to guards temperature stability of the satellite’s top deck from the low-frequency solar flux fluctuation. This paper introduces an analytic method to study the Sun shield’s temperature response to sinusoidal variations of incoming heat flux. Oscillation mode of temperature field is described in the form of wave equation, which satisfies globally the thermal diffusion equation. The continuity equation is solved to reveal the wave behaviours when crossing different media. Three typical boundary conditions are studied in order to solve the wave equation. By applying the method to the TianQin’s thermal model, the low-frequency temperature response of the Sun shield and the top deck are derived. The results suggest adopting insulation materials with low thermal diffusivity in the thermal design to shield the solar disturbances.
Diffuse emission from black hole remnants
Authors: Kazemian Sina , Pascual Mateo , Rovelli Carlo , Vidotto Francesca 
Published: March 2023

Abstract
At the end of its evaporation, a black hole may leave a remnant where a large amount of information is stored. We argue that the existence of an area gap as predicted by loop quantum gravity removes a main objection to this scenario. Remnants should radiate in the low-frequency spectrum. We model this emission and derive properties of the diffuse radiation emitted by a population of such objects. We show that the frequency and energy density of this radiation, which are measurable in principle, suffice to estimate the mass of the parent holes and the remnant density, if the age of the population is known.
Competing interface and bulk anisotropies in Co-rich TbCo amorphous thin films
Authors: Thórarinsdóttir K A , Thorbjarnardóttir B R , Arnalds U B , Magnus F 
Published: March 2023

Abstract
We study the magnetic properties of amorphous Tb
x
Co

100
−
x

films with x in the range 8−12 at% and with a thickness of 5−100 nm. In this range the magnetic properties are shaped by a competition between a perpendicular bulk magnetic anisotropy and an in-plane interface anisotropy, in addition to the changes in magnetization. This results in a temperature controllable spin reorientation transition from in-plane to out-of-plane which is thickness and composition dependent. Furthermore, we show that perpendicular anisotropy is recovered throughout an entire TbCo/CoAlZr multilayer, where neither TbCo nor CoAlZr single layers exhibit perpendicular anisotropy. This illustrates the important role of the TbCo interfaces in the overall effective anisotropy.
Reversible fatigue-rejuvenation procedure and its mechanism in Hf0.5Zr0.5O2 epitaxial films
Authors: Liu Zhuohui , Zhong Hai , Xie Donggang , He Meng , Wang Can , Lyu Hangbing , Yang Guozhen , Jin Kuijuan , Ge Chen 
Published: March 2023

Abstract
HfO2-based ferroelectrics, such as Hf0.5Zr0.5O2, arouse great attention in recent years because of their CMOS compatibility and robust nano-scale ferroelectricity. However, fatigue is one of the toughest problems for ferroelectric applications. The fatigue mechanism of HfO2-based ferroelectrics is different from conventional ferroelectric materials, and research on the fatigue mechanism in HfO2-based epitaxial films have been rarely reported. In this work, we fabricate 10 nm Hf0.5Zr0.5O2 epitaxial films and investigate the fatigue mechanism. The experimental data show that the remanent ferroelectric polarization value decreased by 50% after 108 cycles. It is worth noting that the fatigued Hf0.5Zr0.5O2 epitaxial films can be recovered through applying electric stimulus. Combined with the temperature-dependent endurance analysis, we propose that fatigue of our Hf0.5Zr0.5O2 films comes from both phase transition between ferroelectric Pca21 and antiferroelectric Pbca as well as defects generation and dipole pinned. This result offers a fundamental understanding of HfO2-based film system, and could provide an important guideline for subsequent studies and future applications.
Characterizing and tuning exceptional points using Newton polygons
Authors: Jaiswal Rimika , Banerjee Ayan , Narayan Awadhesh 
Published: March 2023

Abstract
The study of non-Hermitian degeneracies—called exceptional points (EPs)—has become an exciting frontier at the crossroads of optics, photonics, acoustics, and quantum physics. Here, we introduce the Newton polygon method as a general algebraic framework for characterizing and tuning EPs. Newton polygons, first described by Isaac Newton, are conventionally used in algebraic geometry, with deep roots in various topics in modern mathematics. We propose and illustrate how the Newton polygon method can enable the prediction of higher-order EPs, using a recently experimentally realized optical system. Using the paradigmatic Hatano-Nelson model, we demonstrate how our method can predict the presence of the non-Hermitian skin effect. As further application of our framework, we show the presence of tunable EPs of various orders in PT-symmetric one-dimensional models. We further extend our method to study EPs in higher number of variables and demonstrate that it can reveal rich anisotropic behaviour around such degeneracies. Our work provides an analytic recipe to understand exceptional physics.
Spiraling elliptic hollow beams with cross phase
Authors: Liang Guo , Shu Fangjie , Ma Shaoshuo , Cheng Wenjing , Sun Chunzhi 
Published: March 2023

Abstract
We introduced a class of spiraling elliptic hollow beams with the cross phase. Due to the cross phase, the spiraling elliptic hollow beams exhibit three key characteristics, having the elliptic peak ring, carrying the orbital angular momentum (OAM), and performing rotations. We investigated both linear and nonlinear evolutions of the spiraling elliptic hollow beams, and found they can propagate stably, thanks to the cross phase. Especially, we obtained the breather states of spiraling elliptic hollow beams in nonlocally nonlinear medium, and could handily control the rotation by changing optical powers. We discussed both the OAM property and optical force property. By using the spiraling elliptic hollow beams, we can achieve a jointly multiple manipulation on particles at the same time. In one step, we can trap and simultaneously rotate the particles.
Thermally induced all-optical ferromagnetic resonance in thin YIG films
Authors: Schmoranzerová Eva , Kimák Jozef , Schlitz Richard , Goennenwein Sebastian T B , Kriegner Dominik , Reichlová Helena , Šobáň Zbyněk , Jakob Gerhard , Guo Er-Jia , Kläui Mathias , Münzenberg Markus , Němec Petr , Ostatnický Tomáš 
Published: March 2023

Abstract
All-optical ferromagnetic resonance (AO-FMR) is a powerful tool for the local detection of micromagnetic parameters, such as magnetic anisotropy, Gilbert damping or spin stiffness. In this work we demonstrate that the AO-FMR method can be used in thin films of yttrium iron garnet (YIG) if a metallic capping layer (Au, Pt) is deposited on top of the film. Magnetization precession is triggered by heating of the metallic layer with femtosecond laser pulses. The heat pulse modifies the magneto-crystalline anisotropy of the YIG film and shifts the quasi-equilibrium orientation of the magnetization, which results in precessional magnetization dynamics. The laser-induced magnetization precession corresponds to a uniform (Kittel) magnon mode, with the precession frequency determined by the magnetic anisotropy of the material as well as the external magnetic field, and the damping time set by a Gilbert damping parameter. The AO-FMR method thus enables measuring local magnetic properties, with a resolution given by the laser spot size.
Density of states effects on emission and scattering of photons in plasmas
Authors: Gaponenko Sergey V , Novitsky Denis V , Guzatov Dmitry V 
Published: March 2023

Abstract
Plasma supports electromagnetic waves propagation for frequencies higher than plasma frequency but features dielectric permittivity less than 1. This property leads to photon density of states (DOS) lower than in vacuum and should result in subnatural spectral linewidths, sub-Planckian spectrum of thermal radiation, and sub-Rayleigh scattering as well as in lower inelastic photon scattering including Raman scattering. Lamb shift will be altered as well though the decisive contribution from high-energy modes in this case makes the photon DOS effect rather small since plasma DOS converges with the vacuum one in the limit of infinite frequencies. We emphasize the basic character of all these phenomena though absolute values of corrections in many real experiments may appear to be small as compared to other factors. We found that dissipative losses make possible DOS effects smaller though not vanishing and additionally bring about indefinite growth of DOS in the low-frequency limit.
A variationally improved Hulburt-Hirschfelder analytical potential energy function for diatomic molecules
Authors: Tian Hongrui , Fan Qunchao , Fan Zhixiang , Li Huidong , Fu Jia , Ma Jie , Xie Feng 
Published: March 2023

Abstract
In this paper, a variationally improved Hulburt-Hirschfelder (VIHH) analytical potential energy function (APEF) is presented and tested. The VIHH potential is composed of the remedy function

Λ

r

and the improved Hulburt-Hirschfelder (IHH) APEF which possesses the same explicit parameters (

D

e

,

ω

e

,

ω

e

x

e

,

B

e

,

α

e

,

r

e

) with VIHH potential. Potential energy curves (PECs) for the ground electronic states of HI, HBr and KLi molecules have been modeled by the VIHH analytical potential, and it suggests that the VIHH potential is in good agreement of Rydberg-Klein-Rees (RKR) potential points and is superior to the original Hulburt-Hirschfelder (HH) potential, IHH potential and Morse potential, especially in the dissociation and the long-range region. The vibrational energy levels for the ground electronic state of the HI, HBr, and KLi molecules are obtained by numerically solving the radial Schrödinger equation using the LEVEL program for the case of the Morse potential, HH potential, IHH potential and the VIHH potential functions. The comparison for both vibrational energy levels and VIHH potential functions shows better agreement with the experimental data than the other potential functions. Comparing with IHH potential, the VIHH potential which included the remedy function

Λ

r

has better physical behavior in the long-range region and the

Λ

r

is effective for vanishing the invalid barrier.
Revisiting D-meson twist-2, 3 distribution amplitudes*
Authors: Zhong Tao , Huang Dong , Fu Hai-Bing 
Published: March 2023

Abstract
Owing to the significant difference between the experimental measurements and the theoretical predictions of the standard model (SM) for the value of

of the semileptonic decay

, researchers speculate that this decay may be evidence of new physics beyond the SM. Usually, the D-meson twist-2, 3 distribution amplitudes (DAs)

,

, and

are the main error sources when perturbative QCD factorization and light-cone QCD sum rules are used to study

. Therefore, it is important to obtain more reasonable and accurate behaviors for these DAs. Motivated by our previous work [Phys. Rev. D 104, no.1, 016021 (2021)] on pionic leading-twist DA, we revisit D-meson twist-2, 3 DAs

,

, and

. New sum rule formulae for the

-moments of these three DAs are suggested for obtaining more accurate values. The light-cone harmonic oscillator models for the DAs are improved, and their parameters are determined by fitting the values of ξ
-moments via the least squares method.
One-loop formulas for H → Zν

l

ν

l
for l = e, µ, τ in 't Hooft-Veltman gauge*
Authors: Tran Dzung Tri , Phan Khiem Hong 
Published: March 2023

Abstract
In this paper, we present analytical results for one-loop contributions to the decay processes

(for

). The calculations are performed within the Standard Model framework in the 't Hooft-Veltman gauge. One-loop form factors are then written in terms of scalar one-loop functions in the standard notations of

. As a result, one-loop decay rates for the decay channels can be evaluated numerically by using the package. Furthermore, we analyze the signals of

via the production processes

, including the initial beam polarizations at future lepton colliders. The Standard Model backgrounds, such as the processes

, are also examined in this study. Numerical results indicate that one-loop corrections make contributions of approximately 10% to the decay rates. These are sizeable contributions and should be taken into account at future colliders. We show that the signals

are clearly visible at the center-of-mass energy

GeV and are difficult to probe in higher-energy regions owing to the dominant backgrounds.
How to entrain a selected neuronal rhythm but not others: open-loop dithered brain stimulation for selective entrainment
Authors: Duchet Benoit , Sermon James J , Weerasinghe Gihan , Denison Timothy , Bogacz Rafal 
Published: March 2023

Abstract

Objective. While brain stimulation therapies such as deep brain stimulation for Parkinson’s disease (PD) can be effective, they have yet to reach their full potential across neurological disorders. Entraining neuronal rhythms using rhythmic brain stimulation has been suggested as a new therapeutic mechanism to restore neurotypical behaviour in conditions such as chronic pain, depression, and Alzheimer’s disease. However, theoretical and experimental evidence indicate that brain stimulation can also entrain neuronal rhythms at sub- and super-harmonics, far from the stimulation frequency. Crucially, these counterintuitive effects could be harmful to patients, for example by triggering debilitating involuntary movements in PD. We therefore seek a principled approach to selectively promote rhythms close to the stimulation frequency, while avoiding potential harmful effects by preventing entrainment at sub- and super-harmonics. Approach. Our open-loop approach to selective entrainment, dithered stimulation, consists in adding white noise to the stimulation period. Main results. We theoretically establish the ability of dithered stimulation to selectively entrain a given brain rhythm, and verify its efficacy in simulations of uncoupled neural oscillators, and networks of coupled neural oscillators. Furthermore, we show that dithered stimulation can be implemented in neurostimulators with limited capabilities by toggling within a finite set of stimulation frequencies. Significance. Likely implementable across a variety of existing brain stimulation devices, dithering-based selective entrainment has potential to enable new brain stimulation therapies, as well as new neuroscientific research exploiting its ability to modulate higher-order entrainment.