bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel Ear Cartilage Caudal Septal Extension Graft
Authors: Foda Hossam M.T. , El Abany Ahmed 
Published: January 2023

AbstractIn cases of weak or deficient caudal septum, the caudal septum extension graft (CSEG) is the most commonly used reconstructive method. In the current study we introduce a newly-designed conchal cartilage CSEG and evaluate its cosmetic and functional outcomes. The graft has an average length of 3 ± 0.3 cm and composed of a distal double-layered part, which is 3 to 4 mm wide and a proximal single-layered part, which is 1.2 to 1.7 cm wide. The graft design allows the proximal single-layered part to be fixed on either sides of the caudal septum while keeping the distal double-layered segment in the midline. The study included 230 patients, of which 83% were revisions, all patients completed a validated patient-reported outcome measure (PROM) questionnaire pre- and postoperatively. The PROMs used were either the Nasal Obstruction Symptom Evaluation (NOSE) survey or the Standardized Cosmesis and Health Nasal Outcomes Survey (SCHNOS). During the mean follow-up period of 18.2 months (range: 9–192 months) no serious complications were encountered and only six cases (2.3%) required minor revisions of the CSEG.Using the proposed conchal cartilage, CSEG resulted in an improved cosmetic and functional outcome as evidenced by the significant postoperative improvement in the NOSE, SCHNOS-O, and SCHNOS-C scores with a p-value <0.001, <0.05, and <0.0001, respectively. The graft provided adequate tensile strength and support to the nasal tip, which resulted in improved tip projection, rotation, definition, and symmetry, while maintaining a degree of flexibility and elasticity which is much more than that of the rib or even the septum thus resulting in the most natural feel of the nasal tip lobule.
Performing IVF for surrogacy before confirmation of the surrogacy agreement by the court: a critical analysis of recent case law in South Africa
Authors: Thaldar Donrich 
Published: January 2023

AbstractThe regulation of surrogacy in South Africa centres on a scheme of judicial confirmation of surrogacy agreements before the start of the surrogate pregnancy. If such confirmation is granted by the court, actions taken in the execution of the surrogacy agreement are lawful, and the agreement itself is enforceable. Against this background, the question has arisen: is it lawful to perform in vitro fertilisation (IVF) before confirmation of the surrogacy agreement? This is a salient question: In circumstances where egg retrieval needs to take place in anticipation of surrogacy, and where sperm is available but where the surrogacy agreement has not (yet) been confirmed, there are significant clinical advantages to first creating embryos through IVF before cryopreservation—rather than cryopreserving the eggs. However, in the recent case of Ex ParteMCM, the court held that it is unlawful to perform IVF in anticipation of surrogacy where the surrogacy agreement has not (yet) been confirmed. The correctness of this decision is comprehensively analysed with reference to the two main statutory instruments that are relevant to the topic: the Children’s Act and the Regulations relating to the Artificial Fertilisation of Persons. This article concludes that Ex ParteMCM interpreted the Regulations incorrectly, and that on a proper construction of both the relevant statutory instruments, the law does not prohibit IVF in anticipation of surrogacy where the surrogacy agreement has not (yet) been confirmed.
Design and development of mechanical test bench for testing and calibration of multiple blood pressure measuring devices
Authors: Kumar Rahul , Zafer Afaqul , Dubey P. K. , Kumar Ashok , Singh Megha , Sharma Nita Dilawar , Jaiswal S. K. , Prakash Om , Kumar Harish , Gupta V. K. , Aggarwal Ashutosh , Yadav Sanjay 
Published: January 2023

Blood pressure (BP) measurement is an important physiological parameter for human health monitoring, which plays a significant role in the diagnosis of many incurable diseases. However, due to inaccuracies in the different types of BP measuring devices, the calibration of these BP measuring instruments is a major concern for a medical practitioner. Currently, these devices’ calibration, testing, and validation are performed using rigorous methods with complex clinical trials and following the available documentary standards. This article describes the design and development of an indigenous mechanical test bench (MTB) system for the testing and calibration of multiple BP devices, as per International Organization of Legal Metrology (OIML) recommended documents e.g., OIML R 16-1 and OIML R 16-2. The developed system can test and calibrate 20 BP devices, simultaneously. The traceability of the developed MTB is established by performing its calibration against the Air Piston Gauge, a national primary vacuum standard. The estimated expanded measurement uncertainty evaluated is found to be ±0.11 mmHg, which is almost one order better than the measurement uncertainty required for the test and calibration of BP measuring instruments as per standard. The MTB has successfully been used to test and calibrate several BP measuring instruments. The data of one such device is reported herein as an indicator of the performance process. The calibration of these BP measuring instruments was performed in the static mode, and the estimated expanded measurement uncertainty was found to be ±1.25 mmHg. The developed MTB system would prove to be an excellent instrument for calibration laboratories, hospitals, regulatory agencies, and other users to test and calibrate 20 BP measuring devices simultaneously and cost-effectively.
A novel compact solid-state high power pulse generator based on magnetic switch and square waveform pulse transformer
Authors: Gao Jingming , Li Song , Yang Hanwu , Jin Shangdong , Zeng Fanzheng , Qian Baoliang , Yuan Chengwei 
Published: January 2023

The high power pulse generators have been widely used in high power microwave generation and plasma physics research. In this paper, a novel compact solid-state high power pulse generator is studied, numerically and experimentally. The generator is mainly composed of the primary energy supply, the magnetic pulse compressor, the Blumlein type low-impedance pulse forming network, and the square waveform pulse transformer. Especially, design considerations for a solid-state high power pulse generator are proposed. Experimental results show that pulses with a peak power of 2 GW, a duration of 150 ns, and a repetitive rate of 10 Hz are continuously achieved on a dummy load. The dimension is Φ60 × 210 cm2, and the average power density reaches ∼5 W/L. Experimental results show reasonable agreement with numerical analysis.
Fine-structure excitation of CCS by He: Potential energy surface and scattering calculations
Authors: Godard Palluet A. , Lique F. 
Published: January 2023

The fine structure excitation of the interstellar CCS radical induced by collisions with He is investigated. The first potential energy surface (PES) for the CCS–He van der Waals complex is presented. It was obtained from a highly correlated spin unrestricted coupled cluster approach with single double and perturbative triple excitations. The PES presents two shallow minima of 31.85 and 37.12 cm−1 for the linear (He facing S) and the nearly T-shaped geometries, respectively. The dissociation energy of the complex was calculated and found to be D0 = 14.183 cm−1. Inelastic scattering calculations were performed using the close-coupling approach. Cross-sections for transitions between the 61 first fine structure levels of CCS were obtained for energy up to 600 cm−1 and rate coefficients for the 5–50 K temperature range were derived. This set of collisional data can be used to model CCS emission spectra in dark molecular interstellar clouds and circumstellar envelopes and enable an accurate determination of CCS abundance in these astrophysical media.
The synaptic organization in the
Caenorhabditis elegans
neural network suggests significant local compartmentalized computations
Authors: Ruach Rotem , Ratner Nir , Emmons Scott W. , Zaslaver Alon 
Published: January 2023

Neurons are characterized by elaborate tree-like dendritic structures that support local computations by integrating multiple inputs from upstream presynaptic neurons. It is less clear whether simple neurons, consisting of a few or even a single neurite, may perform local computations as well. To address this question, we focused on the compact neural network of
Caenorhabditis elegans
animals for which the full wiring diagram is available, including the coordinates of individual synapses. We find that the positions of the chemical synapses along the neurites are not randomly distributed nor can they be explained by anatomical constraints. Instead, synapses tend to form clusters, an organization that supports local compartmentalized computations. In mutually synapsing neurons, connections of opposite polarity cluster separately, suggesting that positive and negative feedback dynamics may be implemented in discrete compartmentalized regions along neurites. In triple-neuron circuits, the nonrandom synaptic organization may facilitate local functional roles, such as signal integration and coordinated activation of functionally related downstream neurons. These clustered synaptic topologies emerge as a guiding principle in the network, presumably to facilitate distinct parallel functions along a single neurite, which effectively increase the computational capacity of the neural network.
Neuronal membrane proteasomes regulate neuronal circuit activity in vivo and are required for learning-induced behavioral plasticity
Authors: He Hai-yan , Ahsan Arifa , Bera Reshmi , McLain Natalie , Faulkner Regina , Ramachandran Kapil V. , Margolis Seth S. , Cline Hollis T. 
Published: January 2023

Protein degradation is critical for brain function through processes that remain incompletely understood. Here, we investigated the in vivo function of the 20S neuronal membrane proteasome (NMP) in the brain of
Xenopus laevis
tadpoles. With biochemistry, immunohistochemistry, and electron microscopy, we demonstrated that NMPs are conserved in the tadpole brain and preferentially degrade neuronal activity–induced newly synthesized proteins in vivo. Using in vivo calcium imaging in the optic tectum, we showed that acute NMP inhibition rapidly increased spontaneous neuronal activity, resulting in hypersynchronization across tectal neurons. At the circuit level, inhibiting NMPs abolished learning-dependent improvement in visuomotor behavior in live animals and caused a significant deterioration in basal behavioral performance following visual training with enhanced visual experience. Our data provide in vivo characterization of NMP functions in the vertebrate nervous system and suggest that NMP-mediated degradation of activity-induced nascent proteins may serve as a homeostatic modulatory mechanism in neurons that is critical for regulating neuronal activity and experience-dependent circuit plasticity.
Voltage-controlled bimeron diode-like effect in nanoscale information channel
Authors: Hu Gengxin , Luo Jia , Wang Junlin , Lu Xianyang , Zhao Guoping , Liu Yuan , Wu Jing , Xu Yongbing 
Published: January 2023

Abstract
The magnetic bimeron, as the in-plane counterpart of the magnetic skyrmion, has potential applications in next-generation spin memory devices due to its lower energy consumption. In this work, the dynamic behavior of a current-driven bimeron in a nanotrack with voltage-controlled magnetic anisotropy (VCMA) is investigated. By adjusting the profile of the VCMA, the bimeron can display a diode-like unidirectional behavior in the nanotrack. The unidirectional behavior can be modulated by changing the driven current density and width of the VCMA region. The trajectory of the bimeron can also be controlled by the periodic VCMA region, which can enhance the stability of bimeron and realize a high-storage density bimeron-based information channel.
Characterization of single-mode multimode single-mode fiber optic sensors for steel rebar corrosion monitoring in NaCl and simulated concrete pore solutions
Authors: Tang Fujian , Qin Jiangwei , Verstrynge Els , Dang Ji , Li Hong-Nan 
Published: January 2023

Abstract
Single-mode multimode single-mode (SMS) fiber optic sensors are characterized for corrosion monitoring of steel rebars in NaCl and simulated concrete pore solutions. Three diameters of the multimode fiber (MMF) are considered including 125 µm, 90 µm, and 60 µm. Steel rebar specimens were first cast in epoxy resin and then polished to expose a rectangular section. The SMS fiber optic sensors are directly attached on the polished surface of the steel rebar and then immersed in solutions for corrosion monitoring. Two types of solution are prepared, including 3.5 wt.% NaCl solution and simulated concrete pore solutions. During the immersion tests, the corrosion evolution of the steel rebar was measured with open circuit potential and linear polarization resistance. The change of the transmission spectrum of the SMS fiber optic sensors is recorded with an optical spectra analyzer. The change of the characteristic wavelength is correlated with the corrosion-induced mass loss of the steel rebars. Results show that linear relationships are present between the corrosion-induced mass loss of the steel rebars and the shift of the characteristic wavelength of the SMS fiber optic sensors. The corrosion monitoring sensitivity of SMS fiber optic sensors increases with a decrease of the diameter of the MMF.
Automated detection of schizophrenia using deep learning: a review for the last decade
Authors: Sharma Manish , Patel Ruchit Kumar , Garg Akshat , SanTan Ru , Acharya U Rajendra 
Published: January 2023

Abstract
Schizophrenia (SZ) is a devastating mental disorder that disrupts higher brain functions like thought, perception, etc., with a profound impact on the individual’s life. Deep learning (DL) can detect SZ automatically by learning signal data characteristics hierarchically without the need for feature engineering associated with traditional machine learning. We performed a systematic review of DL models for SZ detection. Various deep models like long short-term memory, convolution neural networks, AlexNet, etc., and composite methods have been published based on electroencephalographic signals, and structural and/or functional magnetic resonance imaging acquired from SZ patients and healthy patients control subjects in diverse public and private datasets. The studies, the study datasets, and model methodologies are reported in detail. In addition, the challenges of DL models for SZ diagnosis and future works are discussed.
Distributed thermometry for superconducting magnets using non-leaky acoustic waveguides
Authors: Marchevsky M , Prestemon S 
Published: January 2023

Abstract
Distributed temperature sensing is the preferred approach for detecting and localizing normal zones in the high-field magnets of particle accelerators and fusion energy systems based on high-temperature superconductors. Optical fibers show promise in realizing this approach but suffer from known drawbacks, such as fiber fragility and cross-sensitivity to strain. Guided acoustic wave-based thermometry is a viable alternative to fiber optics; however, its application is currently limited by the leaky nature of wave propagation in acoustic waveguides. We propose the novel concept of a cladded acoustic waveguide in which, due to the elimination of the adhesion between the core and cladding, propagation of longitudinal acoustic excitations is sustained over long distances without leaking wave energy to the environment. These acoustic fibers can be structurally integrated into superconducting magnets and enable the distributed detection of local heating via thermally driven variations in the sound velocity. We present the practical design of acoustic fibers and the results of the experimental detection and localization of heat sources using our technique under ambient and cryogenic conditions. The prospects of using this technique for superconducting magnet quench diagnostics are discussed.
Optimal design of broadband acoustic metasurface absorbers
Authors: Chen Yinghang , Xu Chi , Chen Jian , Li Zhi-Han , Chen Longhu , Huang Weichun , Lu Ming-Hui 
Published: January 2023

Abstract
The absorption of low-frequency noise has always been limited by structural thickness, but the novel physical properties of sound-absorbing metamaterials provide a solution to this problem. Based on genetic algorithm, an acoustic metasurface absorber (AMA) composed of micro-perforated plates (MPPs) and impedance matching coiled-up cavities (IMCCs) is proposed. Different from previously reported metamaterials, this structure can easily provide flexible and accurate broadband sound absorption in different target frequency bands. The theoretical model behind the algorithm is established, and two optimal structures (AMA I/AMA II) are obtained for low and mid-high frequency bands. Broadband sound absorption is realized with a thickness of only 71 mm (about 1/13 of the relevant wavelength at 369 Hz), and an average sound absorption coefficient of 0.931 is achieved in the low-frequency band of 350–1000 Hz. Furthermore, by changing the frequency band of the quasi-perfect absorber to 500–2000 Hz, the average sound absorption coefficient exceeds 0.945 with a thickness of only 55 mm (about 1/11 of the relevant wavelength at 563 Hz). The reflection coefficient in the complex plane and theoretical impedance analysis are utilized to reveal the underlying mechanism of the absorption and the acoustic characteristics of the two structures, which show excellent broadband absorption performance in the low and mid-high frequency bands. This work provides a method of arbitrarily modulating surface acoustic impedance in broadband and a reference for broadband noise control.
Nonclassicality of dissipative cavity optomagnonics in the presence of Kerr nonlinearities
Authors: Moslehi Mahboobeh , Baghshahi Hamid Reza , Faghihi Mohammad Javad , Mirafzali Sayyed Yahya 
Published: January 2023

Abstract
The phenomena of photon and magnon blockade, and nonclassicality which are the key ingredient for quantum enhanced technologies, can be considered as resources in quantum information processing. This paper deals with the study of nonclassicality in a lossy optomagnonic microcavity enclosed by Kerr medium, with considering different sources of dissipation. The system contains a ferromagnetic YIG sphere coupled to two optical modes in a microcavity, with photonic and magnonic Kerr nonlinearity in the presence of magnonic and photonic losses. Considering the Heisenberg-Langevin approach, we obtain the dynamics of the second-order correlation functions (CFs) to observe the phenomenon of photon and magnon blockade (PMB), and the Cauchy-Schwarz inequality (CSI) to find the nonclassicality of the system. We then discuss the effects of magnon-photon coupling strength and different sources of dissipation on the temporal behavior of the mentioned criteria. Looking at the numerical results, we find that the depth and the domain of antibunching behavior significantly depend on the value of the thermal average photon (magnon) number. The phenomenon of perfect PMB may also be observed in the presence of dissipation at the low-temperature regime where the equilibrium thermal photon (magnon) occupation number approaches zero, i.e. T → 0. Moreover, we see a strong anticorrelation between the photonic and magnonic modes and the optical modes, too. Furthermore, it can be found that the phenomenon of PMB blockade as well as antibunching can be observed at cryogenic temperatures.
Top-quark pair production by electron–positron annihilation in a circularly polarized laser field
Authors: Chahri R , Mouslih S , Jakha M , Manaut B , Taj S 
Published: January 2023

Abstract
In the framework of the electroweak standard model, we have investigated the top quarks pair production from

e

−

e

+

annihilation at the energies of a future compact linear collider in the presence of an intense circularly polarized laser field. We have analytically generated the detailed expression for the laser-assisted differential cross section using the lowest-order Dirac-Volkov formalism, including the

γ
t

t
ˉ

and

Z
t

t
ˉ

interactions, in the center-of-mass frame. A wide range of center-of-mass energies corresponding to the future

e

−

e

+

collider has been covered to study the behavior of the total cross section (TCS); this future compact linear collider constitutes an important direction in the study of top quark physics in order to improve the measurements, and the limits of some physical parameters obtained so far at the LHC and the Tevatron. We have analyzed the dependence of the laser-assisted total and partial cross sections on the energy of the center-of-mass of the colliding system

e

−

e

+

and also on the parameters of the laser field, such as the number of exchanged photons, the laser field strength, and its frequency. The results indicate that the laser field decreases the order of magnitude of the TCS as much as the laser field strength increases or decreases its frequency.
Hybrid-kinetic simulation of synergy between fishbone/sawtooth and tearing mode-induced energetic-ion transport in a tokamak plasma
Authors: Zhu X.L. , Yu L.M. , Chen W. , Shi P.W. , Ge W.L. , Wang F. , Luan Q.B. , Sun H.E. , Wang Z.X. 
Published: January 2023

Abstract
The resonant interaction between

m

/

n
=
2

/

1

tearing mode (TM) and energetic ions redistributed by

m

/

n
=
1

/

1

fishbone/sawtooth collapse has been observed recently in HL-2A neutral beam injection-heated high-density plasmas, where m is the poloidal mode number and n is the toroidal mode number. This event essentially results from a synergistic effect with a multiple-mode nature. Understanding such experimental phenomena, especially when using high-power auxiliary heating, is crucial for achieving high-performance plasmas with high confinement and high β

N
in the prospective thermonuclear fusion reactors. In this work, based on the typical experimental phenomenon of synergy between fishbone/sawtooth and TM on HL-2A, a self-consistent nonlinear hybrid-kinetic simulation is conducted utilizing the experimental parameters and profiles before the occurrence of this synergy as the code M3D-K input. In particular, we focus chiefly on the phase-space transport, loss and redistribution of energetic ions induced by two cases, one with only

m

/

n
=
2

/

1

TM and one with synergy between

m

/

n
=
1

/

1

fishbone/sawtooth and

m

/

n
=
2

/

1

TM. It is found that the synergy of the fishbone/sawtooth and

m

/

n
=
2

/

1

TM on energetic-ion transport, loss and redistribution is important and can dramatically enhance the loss rate of energetic ions compared with the case with only

m

/

n
=
2

/

1

TM. It is due to the fact that such synergy can open up an efficient energetic-ion loss channel which connects the plasma center and edge. The phase space transport and redistribution of energetic ions induced by the two different cases are also respectively analyzed and compared in detail. Because of the overestimation of amplitudes of fishbone/sawtooth and TM in the simulations, the obtained energetic-ion transport level is only limited in the context of the numerical framework. These findings indicate that the synergy triggering the sawtooth collapse may lead to an enhancement of the energetic-ion transport and can help us understand the underlying mechanisms of synergy-induced energetic-ion transport.