bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of the uncertainties of 3α and 12C(α, γ)16O reactions on the He-burning phases of low- and intermediate-mass stars
Authors: Tognini F. , Valle G. , Dell’Omodarme M. , Degl’Innocenti S. , Prada Moroni P. G. 
Published: October 2023

Aims. We aim to estimate the impact on the stellar evolution of the uncertainties in the 3α and the 12C(α, γ)16O reaction rates, taking into account the recent improvements in their precision.
Methods. We calculated models of low- and intermediate-mass stars for different values of 3α and 12C(α, γ)16O reaction rates. The 3α reaction rate was varied up to ±24% around the reference value, while the 12C(α, γ)16O reaction rate was varied by up to ±35%, taking into account different recent values for these quantities available in the literature. The models were calculated with the FRANEC evolutionary code for two different initial chemical compositions, namely, Y = 0.246, Z = 0.0001, and Y = 0.28, Z = 0.015 to represent different stellar populations. A M = 0.67 M⊙ model was chosen as representative of the first class (halo ancient stars), while for the second composition (disk stars), the M = 1.5 M⊙ and M = 2.5 M⊙ models were considered. The impact of 3α and 12C(α, γ)16O reaction rates on the central He-burning lifetime and the asymptotic giant branch (AGB) lifetime, as well as the mass of the C/O core at the central He exhaustion and the internal C and O abundances, was investigated.
Results. A variation of the 12C(α, γ)16O reaction rates within its nominal error resulted in marginal differences in the analysed features among the three considered stellar masses, except for the C/O abundances. The central He-burning lifetime changed by less than 4%, while the AGB lifetime was affected only at the 1% level. The internal C and O abundances showed greater variation, with a change of about 15%. The uncertainty in the 3α reaction rate mainly influences the C and O central abundances (up to 10%) for all the models considered, and the AGB lifetime for intermediate mass stars (up to 5%). Most of the investigated features were affected by less than 2%.
Conclusions. The current uncertainty in the explored reaction rates has a negligible effect on the predicted evolutionary time scale with respect to other uncertainty sources. On the other hand, the variability in the chemical profile left at the end of the shell He-burning phase is still relevant. We also checked that there is no interaction between the effects of the two reaction rates, as would be expected in the case of small perturbations.
Spectrum of the Dirichlet Laplacian in a thin cubic lattice
Authors: Chesnel Lucas , Nazarov Sergei A. 
Published: October 2023

We give a description of the lower part of the spectrum of the Dirichlet Laplacian in an unbounded 3D periodic lattice made of thin bars (of widthε ≪ 1) which have a square cross section. This spectrum coincides with the union of segments which all go to +∞ asεtends to zero due to the Dirichlet boundary condition. We show that the first spectral segment is extremely tight, of lengthO(e−δ/ε),δ> 0, while the length of the next spectral segments isO(ε). To establish these results, we need to study in detail the properties of the Dirichlet LaplacianAΩin the geometry Ω obtained by zooming at the junction regions of the initial periodic lattice. This problem has its own interest and playing with symmetries together with max–min arguments as well as a well-chosen Poincaré–Friedrichs inequality, we prove thatAΩhas a unique eigenvalue in its discrete spectrum, which generates the first spectral segment. Additionally we show that there is no threshold resonance forAΩ, that is no non trivial bounded solution at the threshold frequency forAΩ. This implies that the correct 1D model of the lattice for the next spectral segments is a system of ordinary differential equations set on the limit graph with Dirichlet conditions at the vertices. We also present numerics to complement the analysis.
Association Between Circulating Resistin Level and Preeclampsia: A
Meta-Analysis
Authors: Xu Xiangyu , Du Yi , Wang Ni 
Published: October 2023

AbstractResistin, a diminutive secretory adipokine, has been linked to obesity and its
related ailments. A growing body of evidence suggests that resistin may also be
related to the pathogenesis preeclampsia. However, results of previous studies
were not consistent. We performed a systematic review and meta-analysis to
evaluate the level of circulating resistin in women with PE. A systematic search
of Medline, Web of Science, and Embase databases from inception to April 28,
2023, was conducted to identify studies that compared blood resistin levels in
pregnant women with and without PE. A random-effects model was utilized to pool
the results, accounting for heterogeneity. The present study analyzed eighteen
datasets from sixteen observational studies. The results of the meta-analysis
demonstrated a statistically significant increase in blood resistin levels among
women with PE compared to the control group. (standardized mean
difference=0.35, 95% confidence interval: 0.16 to 0.54,
p<0.001; I2=74%). The findings of the subgroup analysis
indicate that various study characteristics, including study design, timing, and
methods for measuring resistin, matching of body mass index between cases and
controls, and study quality scores did not exert a significant impact on the
outcomes. Nonetheless, it is noteworthy that the diagnostic criteria for PE
employed in the studies included in the analysis may have influenced the results
(p for subgroup difference=0.001). Women with preeclampsia exhibit a
greater concentration of resistin in circulation when compared to healthy
pregnant controls.
Assessment of endoscope reprocessing at World Gastroenterology Organisation training centers using adenosine triphosphate testing
Authors: Visrodia Kavel , Jones Dianne , Jennings Melissa , Conway Catherine , Burgos Herbert , Malani Jioji , Ogutu Elly , Pausawasdi Nonthalee , Sabbagh Luis , Leddin Desmond , Kassmeyer Blake , Lennon Ryan J. , Topazian Mark D. 
Published: October 2023

Abstract
Background and study aims Adequacy of endoscope disinfection in resource-limited settings is unknown. Adenosine triphosphate (ATP) testing is useful for evaluation of endoscope reprocessing, and ATP <200 relative light units (RLUs) after manual endoscope cleaning has been associated with adequacy of endoscope disinfection.
Methods Consecutive endoscopes undergoing reprocessing at five World Gastroenterology Organisation (WGO) training centers underwent ATP testing before and after an on-site educational intervention designed to optimize reprocessing practices.
Results A total of 343 reprocessing cycles of 65 endoscopes were studied. Mean endoscope age was 5.3 years (range 1–13 years). Educational interventions, based on direct observation of endoscope reprocessing practices at each site, included refinements in pre-cleaning, manual cleaning, high-level disinfection, and endoscope drying and storage. The percentage of reprocessing cycles with post-manual cleaning ATP ≧200 decreased from 21.4% prior to educational intervention to 14.8% post-intervention (P=0.11). In multivariable logistic modelling, gastroscopes were significantly less likely (odds ratio [OR] 0.04, 95% confidence interval [CI] 0.01–0.19; P<0.001) than colonoscopes to achieve post-manual cleaning ATP < 200. No other factor (educational intervention, study site, endoscope age) was significantly associated with improved outcomes. Endoscope ID was not significantly associated with ATP values, and sites that performed manual versus automated HLD did not have significantly different likelihood of post-manual cleaning ATP <200 (OR 1.18, 95% CI 0.56–2.50; P=0.67).
Conclusions In resource-limited settings, approximately 20% of endoscope reprocessing cycles may result in inadequate disinfection. This was not significantly improved by a comprehensive educational intervention. Alternative approaches to endoscope reprocessing are needed.
Cold snare resection for non-ampullary sporadic duodenal adenomas: systematic review and meta-analysis
Authors: Ciocirlan Mihai , Opri Diana Lavinia , Bilous Dana Maria , Leucuta Daniel-Corneliu , Tianu Elena , Vladut Catalina 
Published: October 2023

Abstract
Background and study aims The role of cold snare polypectomy
(CSP) in curative resection of non-ampullary sporadic duodenal adenomas (NASDA) is debated. We
conducted a systematic review and meta-analysis to investigate the efficacy and safety of CSP
for NASDA.
Patients and methods In this systematic review and meta-analysis,
we identified published series of patients with CSP for NASDA by searching PubMed and Google
Scholar, which resulted in six papers (205 lesions). The main outcome was the rate of local
remission after repeated CSP, the secondary outcomes were rates of local remission at first
control and rates for delayed bleeding and immediate perforations. We computed the weighted
summary proportions under the fixed and random effects model.
Results The pooled proportion of local remission after repeated
CSP was 88% (95% confidence interval [CI] 57%-100%). The pooled proportion of local remission
at first control was 81% (95% CI 55%-98%), the pooled proportion of delayed bleeding was 1%
(95% CI 0%-4%) and the pooled proportion of immediate perforation was 0% (95% CI
0%-2%).
Conclusions Our meta-analysis suggests that CSP should be
considered as the first-line therapy for NASDA.
Task-specific motivation and development of the Spanish L2 self during domestic immersion
Authors: Jarrett Dylan , Gurzynski-Weiss Laura 
Published: October 2023

Abstract
The present study considers global (Dörnyei’s 2005 L2 selves) and
micro (task-specific) measures of motivation in a unique task-based context: a two-week, domestic Spanish immersion program for
high schoolers in the United States (Gurzynski-Weiss, in revision).
Data was collected from eight students via task-specific questionnaires (given after 30 tasks), L2 self
questionnaires (given at the beginning and end of a two-week program), and 12 daily reflective journals. Results indicated overall
high L2 self-constructs with little change over two weeks of instruction, and all task domains were rated moderately to very high
for task motivation. It was found that higher L2 self ratings regularly patterned with higher task-specific motivation, although
participant individual differences and characteristics unique to a domestic immersion program also influenced task-specific
motivation.
A simple electrode insulation and channel fabrication technique for high-electric field microfluidics
Authors: Anand Gaurav , Safaripour Samira , Tercovich Jaynie , Capozzi Jenna , Griffin Mark , Schin Nathan , Mirra Nicholas , Snoeyink Craig 
Published: October 2023

Abstract
A simple and robust electrode insulation technique that can withstand a voltage as high as

1000
V

, which is equivalent to an electric field strength of

∼

1

MV m−1 across a

10
μ

m

channel filled with an electrolyte of conductivity

∼

0.1

S m−1, i.e. higher than sea water’s conductivity, is introduced. A multi-dielectric layers approach is adopted to fabricate the blocked electrodes, which helps reduce the number of material defects. Dielectric insulation with an exceptional breakdown electric field strength for an electrolyte confined between electrodes can have a wide range of applications in microfluidics, like high electric field strength-based dielectrophoresis. The voltage-current characteristics are studied for various concentrations of sodium chloride solution to estimate the insulation strength of the proposed materials, and the breakdown strength is calculated at the point where the electrical insulation failed. A detailed adhesion technique is also demonstrated, which will reduce the ambiguity around the fabrication of a sealed channel using SU-8.
Electronic Kapitza conductance and related kinetic coefficients at an interface between n-type semiconductors
Authors: Meilakhs A P 
Published: October 2023

Abstract
We calculate the Kapitza conductance, which is the proportionality coefficient between heat flux and temperature jump at the interface, for the case of two conducting solids separated by the interface. We show that for conducting solids in a non-equilibrium state, there should also arise the electrochemical potential jump at the interface. Hence to describe linear transport at the interface we need three kinetic coefficients: interfacial analogs of electric and heat conductances and interfacial analog of the Seebeck coefficient. We calculate these coefficients for the case of an interface between n-type semiconductors. We perform calculations in the framework of Boltzmann transport theory. We have found out that the interfacial analog of the Seebeck coefficient for some range of parameters of the considered semiconductors, has a high value of about 10−3 V K−1. Thus this effect has the potential to be used for the synthesis of effective thermoelectric materials.
Covalently bridged bond assembly of MoS2 lamellae onto a graphene sheet: an outstanding electrode for high rate and long-life lithium/sodium-ion batteries
Authors: Guo Mengyuan , Zhang Huipei , Qi Luyao , Zhang Shan , Qin Yanmin , Deng Binglu 
Published: October 2023

Abstract
The practical application of Molybdenum sulphide (MoS2) electrodes has been hindered by its structural instability, and poor electrical conductivity. To enhance the cycle stability and rate performance of MoS2 in lithium/sodium-ion batteries (LIBs/SIBs), we synthesized a graphene-supported MoS2 composite (MoS2@rGO) with affluent covalent bridged bonds through a facile and scalable hydrothermal and annealing process. The covalent bridged bonds of Mo–S–C, Mo–O–C and C–O–S provide an effective charge transfer path between MoS2 and graphene, facilitating fast charge hopping and improving rate performance. As anode materials for LIBs, the MoS2@rGO exhibited exceptional long-term cycle life (906 mAh g−1 at 1.0 A g−1 after 400 cycles) and outstanding rate capability (1267.7/314.7 mAh g−1 at 0.1/6.5 A g−1). Additionally, the MoS2@rGO electrode demonstrated a stable reversible capacity of 521.7 mAh g−1 at 1.0 A g−1 after 700 cycles and excellent rate capabilities of 665.1 and 326.3 mAh g−1 at 0.1 and 10.0 A g−1 in SIBs. The edge Mo of MoS2 is directly coupled with the oxygen of the functional group on rGO, achieved by adjusting the pH value of the solution to tune the surface charge feature, can effectively enhance the structural stability of electrode even under higher current density.
Current–voltage characteristics of focused ion beam fabricated superconducting tungsten meanders
Authors: Kumar Abhishek , Husale Sudhir , Saravanan M P , Gajar Bikash , Yousuf Majid , Saini Abhilasha , Yadav Mahesh Gaurav , Aloysius R P 
Published: October 2023

Abstract
We report on the superconducting properties and intermediate resistive steps (IRS) observed in the current–voltage characteristics (IVC) of tungsten meander (MW) structures fabricated using focused ion beam (FIB) technique. Three number of MWs were studied with individual wire widths of 240 nm, 640 nm and 850 nm with superconducting transition temperatures (

T

C

) of 4.5 K, 4.55 K and 4.60 K respectively. The measured normal state resistance values at 8 K for these wires are of ∼182 kΩ, ∼49 kΩ and ∼32 kΩ, respectively as a function of increasing wire widths; are higher than the quantum of resistance (

h

/

4

e

2

=
6.45
k
Ω
,

h

is a Planck constant and

e

is electronic charge) indicating extreme disorder nature of the fabricated samples. The variation of resistance with respect to temperature (for

T
<
T

C

) follows the theoretical simulation of weak-link induced thermally activated phase slip (WL-TAPS) for the MW wire of width ∼240 nm, while for other samples the convergence between WL-TAPS and the experimental data are not so satisfactory. Though the IRS features are present in all the samples with varying degree of prominence, an external magnetic field causes its evolution demarcating different boundary lines with respect to temperatures. Herein, we believe that the occurrence of IRS is due to phase slip (PS) mechanism which further proliferates through phase slip centers or phase slip lines in IVC either with respect to temperature or magnetic field. As per our knowledge, such IRS features are not being reported for W-meander wires fabricated using FIB technique. The observation of PS (IRS) features is promising for the use of FIB fabricated W nanowires for various quantum applications including single photon detector, bolometers.
Stochastic energetics of a colloidal particle trapped in a viscoelastic bath
Authors: Darabi Farshad , Ferrer Brandon R , Gomez-Solano Juan Ruben 
Published: October 2023

Abstract
We investigate the statistics of the fluctuations of the energy transfer between an overdamped Brownian particle, whose motion is confined by a stationary harmonic potential, and a surrounding viscoelastic fluid at constant temperature. We derive an analytical expression for the probability density function of the energy exchanged with the fluid over a finite time interval, which implicitly involves the friction memory kernel that encodes the coupling with such a non-Markovian environment, and reduces to the well known expression for the heat distribution in a viscous fluid. We show that, while the odd moments of this distribution are zero, the even moments can be explicitly expressed in terms of the autocorrelation function of the particle position, which generally exhibits a non-mono-exponential decay when the fluid bath is viscoelastic. Our results are verified by experimental measurements for an optically-trapped colloidal bead in semidilute micellar and polymer solutions, finding and excellent agreement for all time intervals over which the energy exchange takes place.
Rule switching mechanisms in the Game of Life with synchronous and asynchronous updating policy
Authors: Miszczak Jarosław Adam 
Published: October 2023

Abstract
The emergence of complex structures in the systems governed by a simple set of rules is among the most fascinating aspects of Nature. The particularly powerful and versatile model suitable for investigating this phenomenon is provided by cellular automata, with the Game of Life being one of the most prominent examples. However, this simplified model can be too limiting in providing a tool for modelling real systems. To address this, we introduce and study an extended version of the Game of Life, with the dynamical process governing the rule selection at each step. We show that the introduced modification significantly alters the behaviour of the game. We also demonstrate that the choice of the synchronization policy can be used to control the trade-off between the stability and the growth in the system.
A highly birefringent photonic crystal fiber based on a central trielliptic structure: FEM analysis
Authors: Liu Zihan , Wen Jialin , Zhou Zhengyong , Dong Yuming , Yang Tianyu 
Published: October 2023

Abstract
In this study, a highly birefringent photonic crystal fiber (PCF) with a simple center trielliptic is presented. The finite element method is applied in this study to analyze PCF. By adjusting the ellipticity and other parameters, the fiber performances can be optimized. As the parameters of the PCF are finalized, i.e., the number of cladding N = 4, lattice constant Λ = 1.6 μm, and ellipticity η = 2, a high birefringence of 3.56 × 10−2 can be obtained at the wavelength λ = 1.55 μm . Moreover, the dispersions of the X- and Y-polarized modes are relatively flat in the range of 1 μm to 1.55 μm along with a confinement loss as low as 9.63 × 10−6 dB m−1. Besides, this structure has demonstrated remarkable robustness, maintaining its superior performance even when subjected to significant displacements or rotations. Due to the characteristics of the high birefringence and low confinement loss, this PCF can be used for long distance optical fiber communication, fiber sensing, dispersion compensation, and supercontinuum generation.
Optical solitons of the (2+1)-dimensional nonlinear Schrödinger equation with spatio-temporal dispersion in quadratic-cubic media
Authors: Zhao Ya-nan , Guo Li-feng 
Published: October 2023

Abstract
The major objective of this paper is to study the perturbed nonlinear Schrödinger equation with spatio-temporal dispersion in (2+1)-dimensional by using the complete discrimination system for polynomial. This paper discusses the propagation patterns in nonlinear fibers with quadratic-cubic nonlinearity. Additionally, a host of optical wave solutions are obtained, where solitary wave patterns and elliptic functions double periodic patterns are newly received. Besides, some two dimensional figures of solutions are illustrated in parameter space. All these solutions and figures are available to investigate the propagation dynamics of optical solitons in optical fibers.
A first-principles assessment of the thermoelectric properties in half-heusler compound NbIrSn
Authors: Khatri Prakash , Adhikari Narayan Prasad 
Published: October 2023

Abstract
Converting waste heat into electric power using thermoelectric materials could significantly address global energy needs. Half-Heusler compounds exhibit significant promise as thermoelectric materials suitable for high temperatures, thereby offering a potential solution to address the energy crisis. By employing density functional theory (DFT), semi-classical Boltzmann transport theory (BTE), and density functional perturbation theory (DFPT), this study thoroughly examines the structural, electronic, magnetic, phonon, mechanical, and thermoelectric properties of 18 valence electron half Heusler compound NbIrSn. Considering the presence of heavy 5d transition element Ir in our compound, all calculations are carried out with and without spin–orbit coupling (SOC). This material display both dynamic and mechanical stability, and also possess the property of ductility as indicated by Pugh’s ratio and Poisson’s ratio. NbIrSn is identified as non-magnetic semiconductors with indirect band gaps of 0.65 eV and it reduces to 0.63 eV when SOC is included. The different transport parameters are analyzed in relation to the chemical potential and doping concentrations for different temperatures. The lattice thermal conductivity of the material at room temperature is measured to be 13.40 Wm−1K−1 and 14.81 Wm−1K−1without and with SOC respectively. The optimal zT values for NbIrSn at 1200 K are 0.98 with p-type doping and 0.31 with n-type doping. Incorporating SOC leads to a substantial improvement, raising the optimal zT values to 1.33 for p-type doping and 0.47 for n-type doping. In conclusion, incorporating SOC is essential when analyzing the characteristics of the proposed compound. The present study highlights NbIrSn as a potentially a favorable candidate for p-type doping on high-temperature power generation.
Qudit states in noisy quantum channels
Authors: Dutta Supriyo , Banerjee Subhashish , Rani Monika 
Published: October 2023

Abstract
In this work, we analyze a number of noisy quantum channels on a family of qudit states. The channels studied are the dit-flip noise, phase flip noise, dit-phase flip noise, depolarizing noise, non-Markovian Amplitude Damping Channel (ADC), dephasing noise, and depolarization noise. To gauge the effect of noise, the fidelity between the original and the final states is studied. The change of coherence under the action of noisy channels is also studied, both analytically and numerically. Our approach is advantageous as it has an explicit relation to the original approach to the multi-qubit hypergraph states.