bluuebunny/crossref_metadata_2025_split huggingface dataset:
GPCR voltage dependence controls neuronal plasticity and behavior
Authors: Rozenfeld Eyal , Tauber Merav , Ben-Chaim Yair , Parnas Moshe 
Published: December 2021

AbstractG-protein coupled receptors (GPCRs) play a paramount role in diverse brain functions. Almost 20 years ago, GPCR activity was shown to be regulated by membrane potential in vitro, but whether the voltage dependence of GPCRs contributes to neuronal coding and behavioral output under physiological conditions in vivo has never been demonstrated. Here we show that muscarinic GPCR mediated neuronal potentiation in vivo is voltage dependent. This voltage dependent potentiation is abolished in mutant animals expressing a voltage independent receptor. Depolarization alone, without a muscarinic agonist, results in a nicotinic ionotropic receptor potentiation that is mediated by muscarinic receptor voltage dependency. Finally, muscarinic receptor voltage independence causes a strong behavioral effect of increased odor habituation. Together, this study identifies a physiological role for the voltage dependency of GPCRs by demonstrating crucial involvement of GPCR voltage dependence in neuronal plasticity and behavior. Thus, this study suggests that GPCR voltage dependency plays a role in many diverse neuronal functions including learning and memory.
Environmental and molecular approach to dye industry waste degradation by the ascomycete fungus Nectriella pironii
Authors: Góralczyk-Bińkowska Aleksandra , Długoński Andrzej , Bernat Przemysław , Długoński Jerzy , Jasińska Anna 
Published: December 2021

AbstractTextile industry effluents and landfill leachate contain chemicals such as dyes, heavy metals and aromatic amines characterized by their mutagenicity, cytotoxicity and carcinogenicity. The aim of the present study was investigation of the ascomycete fungus N. pironii isolated from urban postindustrial textile green space for its ability to grow and retain metabolic activity in the presence of the dye industry waste. Research focused mainly on dyes, heavy metals and aromatic amines, which had been detected in landfill leachate via HPLC–MS/MS analysis. Presence of all tested compounds as well as leachate in the growth medium clearly favored the growth of fungal biomass. Only slight growth limitation was observed in the presence of 50 mg L-1o-tolidine. The fungus eliminated o-tolidine as well as dyes at all tested concentrations. The presence of metals slightly influenced the decolorization of the azo dyes; however, it was still similar to 90%. During fungal growth, o-tolidine was hydroxylated and/or converted to toluidine and its derivatives. Laccase and cytochrome P450 involvement in this process has been revealed. The results presented in the paper provide a valuable background for the development of a fungus-based system for the elimination of toxic pollutants generated by the textile industry.
A6Mo2P4O19 (A = Rb, Cs) and Rb2MoP2O9: new molybdophosphates with distinct polyanionic configurations
Authors: Abudoureheman Maierhaba , Zheng Juanjuan , Wang Peng , Wei Bo , Guo Zhiyong , Chen Zhaohui , Chen Yanna 
Published: December 2021

Several new Mo(v) phosphates Rb2MoP2O9, Rb6Mo2P4O19 and Cs6Mo2P4O19 with dissimilar polyanionic configurations to be synthesized through a spontaneous nucleation method.
Neurotrophic factors combined with stem cells in the treatment of sciatic nerve injury in rats: a meta-analysis
Authors: Liu Kuang-Pin , Ma Wei , Li Chun-Yan , Li Li-Yan 
Published: December 2021

Abstract
Treatment of peripheral nerve regeneration with stem cells (SCs) alone has some limitations. For this reason, we evaluate the efficacy of neurotrophic factors combined with stem cell transplantation in the treatment of sciatic nerve injury (SNI) in rats. PubMed, Cochrane Library, Embase, WanFang, VIP and China National Knowledge Infrastructure databases were retrieved from inception to October 2021, and control experiments on neurotrophic factors combined with stem cells in the treatment of SNI in rats were searched. Nine articles and 551 rats were included in the meta-analysis. The results of meta-analysis confirmed that neurotrophic factor combined with stem cells for the treatment of SNI yielded more effective repair than normal rats with regard to sciatic nerve index, electrophysiological detection index, electron microscope observation index, and recovery rate of muscle wet weight. The conclusion is that neurotrophic factor combined with stem cells is more conducive to peripheral nerve regeneration and functional recovery than stem cells alone. However, due to the limitation of the quality of the included literature, the above conclusions need to be verified by randomized controlled experiments with higher quality and larger samples.
A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
Authors: Cheng Xikang , Liu Wei , Luo Weiqi , Sun Minghao , Zhang Yang 
Published: December 2021

AbstractThis paper proposes modelling on the transmission torque of an eddy‐current axial magnetic coupling (EAMC) considering the thermal effect. A new and simple equivalent reluctance network is established to obtain the magnetic flux density based on the two‐dimensional (2D) finite‐element analysis. Furthermore, the expressions of the transmission torque and the thermal loss are derived by establishing the computational coordinate system for the conductor sheet (CS) eddy current. Then, a simple and effective thermal network considering different convective heat transfer modes is presented to obtain the temperature rise, and the influence of temperature on some key parameters is given to correct the transmission torque. Furthermore, the proposed modelling is in good agreement with the three‐dimensional (3D) finite‐element method (FEM) and experiments under normal working conditions. Moreover, some suggestions for the design and optimization of EAMCs are provided.
Two fast and accurate routines for solving the elliptic Kepler equation for all values of the eccentricity and mean anomaly
Authors: Tommasini Daniele , Olivieri David N. 
Published: December 2021

Context. The repetitive solution of Kepler’s equation (KE) is the slowest step for several highly demanding computational tasks in astrophysics. Moreover, a recent work demonstrated that the current solvers face an accuracy limit that becomes particularly stringent for high eccentricity orbits.
Aims. Here we describe two routines, ENRKE and ENP5KE, for solving KE with both high speed and optimal accuracy, circumventing the abovementioned limit by avoiding the use of derivatives for the critical values of the eccentricity e and mean anomaly M, namely e > 0.99 and M close to the periapsis within 0.0045 rad.
Methods. The ENRKE routine enhances the Newton-Raphson algorithm with a conditional switch to the bisection algorithm in the critical region, an efficient stopping condition, a rational first guess, and one fourth-order iteration. The ENP5KE routine uses a class of infinite series solutions of KE to build an optimized piecewise quintic polynomial, also enhanced with a conditional switch for close bracketing and bisection in the critical region. High-performance Cython routines are provided that implement these methods, with the option of utilizing parallel execution.
Results. These routines outperform other solvers for KE both in accuracy and speed. They solve KE for every e ∈ [0, 1 − ϵ], where ϵ is the machine epsilon, and for every M, at the best accuracy that can be obtained in a given M interval. In particular, since the ENP5KE routine does not involve any transcendental function evaluation in its generation phase, besides a minimum amount in the critical region, it outperforms any other KE solver, including the ENRKE, when the solution E(M) is required for a large number N of values of M.
Conclusions. The ENRKE routine can be recommended as a general purpose solver for KE, and the ENP5KE can be the best choice in the large N regime.
A novel cosmic filament catalogue from SDSS data
Authors: Carrón Duque Javier , Migliaccio Marina , Marinucci Domenico , Vittorio Nicola 
Published: December 2021

Aims.In this work we present a new catalogue of cosmic filaments obtained from the latest Sloan Digital Sky Survey (SDSS) public data.Methods.In order to detect filaments, we implement a version of the Subspace-Constrained Mean-Shift algorithm that is boosted by machine learning techniques. This allows us to detect cosmic filaments as one-dimensional maxima in the galaxy density distribution. Our filament catalogue uses the cosmological sample of SDSS, including Data Release 16, and therefore inherits its sky footprint (aside from small border effects) and redshift coverage. In particular, this means that, taking advantage of the quasar sample, our filament reconstruction covers redshifts up toz = 2.2, making it one of the deepest filament reconstructions to our knowledge. We follow a tomographic approach and slice the galaxy data in 269 shells at different redshift. The reconstruction algorithm is applied to 2D spherical maps.Results.The catalogue provides the position and uncertainty of each detection for each redshift slice. The quality of our detections, which we assess with several metrics, show improvement with respect to previous public catalogues obtained with similar methods. We also detect a highly significant correlation between our filament catalogue and galaxy cluster catalogues built from microwave observations of thePlanckSatellite and the Atacama Cosmology Telescope.
Reconstructive Principles for the Metacarpal Hand: Case Report
Authors: Escuredo Iker Miguel , Arzua Guillermo Ibarrondo , Gutierrez Juan José García 
Published: December 2021

AbstractMetacarpal hand is one of the most devastating upper-extremity lesions. We report a case of a multidigit amputation corresponding to a Wei et al.5 IA metacarpal hand in a 56 year-old-male. He underwent a sequential toe-to-hand transfer to the third and fourth radii. Reconstruction of the metacarpal hand, either in an acute or deferred presentation, must consider some reconstructive principles, including the identification of the structures to be spared and the coverage strategies for the acute stage. Toe-to-hand transfer is the preferred technique when replantation is not an option. It is critical to know which structures should be transferred to which positions, as well as to adapt the reconstructive plan to the characteristics from each patient.
Socio-pragmatic potential of (verbo)-visual metaphtonymy in Internet memes featuring Donald Trump
Authors: Martynyuk Alla , Meleshchenko Olga 
Published: December 2021

AbstractThe present study explores (verbo)-visual metaphtonymy in Twitter-based Internet memes featuring Donald Trump, focusing both on the patterns of conceptual interaction of metaphor and metonymy and their socio-pragmatic potential to influence Internet users. The results of the study reveal four types of (verbo)-visual metaphtonymy employed in the analyzed Internet memes. The types are differentiated in accordance with the complexity of the metaphoric source: metaphtonymy with a simple metaphoric source, metaphtonymy with a metaphoric source structured by simple metonymy, metaphtonymy with a metaphoric source structured by metonymic chain, and metaphtonymy with a metaphoric source structured by radial metonymy. In all the four types, the metaphoric target is structured by metonymic amalgam–a metonymic complex in which metonymies that are based on different ICMs merge due to the association of contiguity that is relevant in the current communicative and social/political context. Besides metonymic amalgam, the study introduces the notion of radial metonymy–a metonymic complex that emerges when one metonymic source gives access to several metonymic targets. We argue that the analyzed metaphtonymies rest on conceptual incongruity created to trigger negative evaluative inferences and emotional responses to shape Trump’s image.
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the NRC, Canada and the BIPM in 60Co gamma radiation
Authors: Kessler C , Burns D , Downton B , McEwen M , Mainegra-Hing E 
Published: December 2021

Main text
A new key comparison of the standards for air kerma of the National Research Council of Canada (NRC), Canada and the Bureau International des Poids et Mesures (BIPM) was carried out in the 60Co radiation beam of the BIPM in October 2020. The comparison result, based on the calibration coefficients for three transfer chambers and expressed as a ratio of the NRC and the BIPM standards for air kerma, is 1.0022 with a combined standard uncertainty of 2.2 parts in 103. The result agrees within the uncertainties with the indirect comparison carried out in 2009. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Active species evolution in the presence of different targets impacted by a helium plasma jet at atmospheric pressure
Authors: Cosimi J , Merbahi N , Marchal F , Eichwald O , Yousfi M 
Published: December 2021

Abstract
A low-temperature plasmas jet is generated by a dielectric barrier discharge powered by a pulsed high voltage in helium flow (3 L min−1) at atmospheric pressure in the presence of different targets (a glass slide, ultra-pure water and a grounded metal plate) positioned perpendicular to the plasma propagation axis. Experimental electrical characterizations such as discharge current, voltage and power, and optical characterizations such as intensified camera ICCD, Schlieren imaging and emission spectroscopy to follow specific excited species have been achieved. The transition from laminar to turbulent regime was observed during the discharge ignition with a larger spreading of the plasma on the surface target with lower dielectric permittivity. The generation of two discharges during each voltage pulse is highlighted during the propagation of the ionization wave which has a variable speed along the plasma axis not depending on the target kind. The evolution of some active species (such as OH, O and excited nitrogen and helium) are investigated using time resolved mapping of the emissions of radiative excited species propagating in ambient air between the plasma jet output and the target. For a low relative permittivity target (glass), the volume ionization wave at its arrival on the target spreads on its surface thus behaving as a surface ionization wave. For the highest relative permittivity (metal), a conductive channel appears between the target surface and the plasma jet during the first discharge, followed by a diffuse plasma plume from the target surface towards the plasma jet after the impact of the ionization wave on the target. A hybrid behavior is highlighted for the ultra-pure water which leads to a short spreading of the ionization wave on the target surface, the formation of a conductive channel in ambient air between tube output and target and the formation of a plasma plume on the target surface.
Hard gluon evolution in the last stage of the bottom-up thermalization
Authors: Ben F G , Machado M V T 
Published: December 2021

Abstract
The study of how fast thermalization in heavy ion collisions occurs has been one of the central topics in the heavy ion community. In the weak coupling picture this thermalization occurs from ‘the bottom up’: high energy partons, formed early in the collision, radiate low energy gluons which then proceed to equilibrate among themselves, forming a thermal bath that brings the high energy sector to equilibrium. In this scheme we apply a model on parton energy loss to discuss the effects of medium expansion on the thermalization problem and estimate the average transverse momentum diffusivity for thermalization in a Bjorken expanding medium.
Carrier mobility of one-dimensional vanadium selenide (V2Se9) monolayer and nanoribbon systems: DFT study
Authors: Lee Junho , Chung You Kyoung , Sung Dongchul , Jeong Byung Joo , Oh Seungbae , Choi Jae-Young , Huh Joonsuk 
Published: December 2021

Abstract
Vanadium selenide (V2Se9) is a true one-dimensional (1D) crystal composed of atomic nanochains bonded by van der Waals (vdW) interactions. Recent experiments revealed the mechanical exfoliation of newly synthesized V2Se9. In this study, we predicted the electronic and transport properties of V2Se9 through computational analyses. We calculated the intrinsic carrier mobility of V2Se9 monolayers (MLs) and nanoribbons (NRs) using density functional theory and deformation potential theory. We found that the electron mobility of the two-dimensional (2D) (010)-plane ML of V2Se9 is highly anisotropic, reaching

μ

2
D
,

z

e

=
1327

cm2 V−1 s−1 across the chain direction. The electron mobility of 1D NR systems in a (010)-plane ML of V2Se9 along the chain direction continuously increased as the thickness increased from 1-chain to 4-chain NR (width below 3 nm). Interestingly, the electron mobility of 1D 4-chain NR along the chain direction (

μ

1
D
,
x

e

=
775

cm2 V−1 s−1) was higher than that of a 2D (010)-plane ML (

μ

2
D
,
x

e

=
567

cm2 V−1 s−1). These results demonstrate the potential of vdW-1D crystal V2Se9 as a new nanomaterial for ultranarrow (sub-3 nm width) optoelectronic devices with high electron mobility.
Building resistive switching memory having super-steep switching slope with in-plane boron nitride
Authors: Wang Yisen , Huang Zhifang , Chen Xinyi , Lu Miao 
Published: December 2021

Abstract
The two-dimensional hexagonal boron nitride (h-BN) has been used as resistive switching (RS) material for memory due to its insulation, good thermal conductivity and excellent thermal/chemical stability. A typical h-BN based RS memory employs a metal-insulator-metal vertical structure, in which metal ions pass through the h-BN layers to realize the transition from high resistance state to low resistance state. Alternatively, just like the horizontal structure widely used in the traditional MOS capacitor based memory, the performance of in-plane h-BN memory should also be evaluated to determine its potential applications. As consequence, a horizontal structured resistive memory has been designed in this work by forming freestanding h-BN across Ag nanogap, where the two-dimensional h-BN favored in-plane transport of metal ions to emphasize the RS behavior. As a result, the memory devices showed switching slope down to 0.25 mV dec−1, ON/OFF ratio up to 108, SET current down to pA and SET voltage down to 180 mV.
Role of wave-particle resonance in turbulent transport in toroidal plasmas
Authors: Dong G , Lin Z 
Published: December 2021

Abstract
A clear understanding of wave-particle interaction and associated transport mechanisms of different particle species in the drift wave instabilities is important for accurate modeling and predictions of plasma confinement properties in tokamaks. In particular, the roles of linear resonance and nonlinear scattering in turbulent transport need to be delineated when constructing reduced transport models. First-principle, global gyrokinetic simulations find that electron particle and heat transport decreases to a very low level, while ion heat transport level has no dramatic change when wave-particle resonance is suppressed in the collisionless trapped electron mode (CTEM) turbulence. On the other hand, ion heat transport in the self-consistent ion temperature gradient (ITG) turbulence simulation is qualitatively similar to that in the test-particle simulation using the static ITG turbulence fields. These simulation results show that electron transport is primarily driven by the wave-particle resonance in the CTEM turbulence, and the ion transport is mostly driven by the nonlinear wave-particle scattering in both the CTEM and ITG turbulence.
Current biased gradiometric flux qubit in a circuit-QED architecture
Authors: Kim Mun Dae 
Published: December 2021

Abstract
We propose a scheme for controlling the gradiometric flux qubit (GFQ) by applying an ac bias current in a circuit-QED architecture. The GFQ is insensitive to the magnetic flux fluctuations, which at the same time makes it challenging to manipulate the qubit states by an external magnetic field. In this study, we demonstrate that an ac bias current applied to the α-junction of the GFQ can control the qubit states. Further, the present scheme is robust against the charge fluctuations as well as the magnetic flux fluctuations, promising a long coherence time for quantum gate operations. We introduce a circuit-QED architecture to perform the single and two-qubit operations with a sufficiently strong coupling strength.
Bidirectional switchable beam splitter/filter based graphene loaded Si ring resonators
Authors: Bagheri Amin , Nazari Fakhroddin , Moravvej-Farshi Mohammad Kazem 
Published: December 2021

Abstract
Using bus waveguides coupled to the graphene-loaded Si-ring resonators (GSRRs) all on a Si-on-insulator substrate, we propose a compact bidirectional switchable beam splitter/filter controlled by graphene-based electro-absorptive (refractive) mode modulation. The design is suitable for dense wavelength division multiplexing (DWDM), according to International Telecommunication Union (ITU) standard. The proposed device consists of a through waveguide coupled to two drop waveguides via two GSRRs. Each GSRR consists of a stack of hBN/graphene/hBN nanolayers sandwiched between two Si-ring resonators. Using a finite difference time domain method, we have tuned the resonant wavelengths of GSRRs in the range of 1551.5 < λ < 1552.1 nm, linearly with the slope of ∼ 2.46 nm eV−1 via appropriately changing the graphene chemical potential, electrostatically. The numerical results show that when both GSRRs are in an electro-refractive state and a transverse electric (TE) polarized light beam of an appropriate wavelength is launched into one of the though-ports, ∼ 84.5% of the input intensity equally splits between the adjacent drop-ports. The transmission out of the second through-port is less than 0.8%. The numerical results further show that when one GSRR is in an electro-refractive mode, and the other one is in an electro-absorptive state, ∼ 68.4% of the input intensity transmits out of the drop-port adjacent to the former GSRR, and the other ports experience insignificant outputs (<0.7%). The device’s structural symmetry makes it a bidirectional tunable, suitable for long-haul optical telecommunication applications. Finally, we investigated the fabrication tolerances in the designed parameters.
The dynamic of quantum entanglement of two dimensional harmonic oscillator in non-commutative space
Authors: Koumetio Armel Azangue , Deuto Germain Yiande , Alain Giresse Tene , Martin Tchoffo 
Published: December 2021

Abstract
In the present paper, we study the influence of non-commutativity on entanglement in a system of two oscillators-modes in interaction with its environment. The considered system is a two-dimensional harmonic oscillator in non-commuting spatial coordinates coupled to its environment. The dynamics of the covariance matrix, the separability criteria for two Gaussian states in non-commutative space coordinates, and the logarithmic negativity are used to evaluate the quantum entanglement in the system, which is compared to the commutative space coordinates case. The result is applied for two initially entangled states, namely the squeezed vacuum and squeezed thermal states. It can be observed that the phenomenon of entanglement sudden death appears more early in the system for the case of squeezed vacuum state than in the case of squeezed thermal state. Thereafter, it is also observed that non-commutativity effects lead to an increasing of entanglement of initially entangled quantum states, and reduce the separability in the open quantum system. It turns out that a separable state in the usual commutative quantum mechanics might be entangled in non-commutative extension.