bluuebunny/crossref_metadata_2025_split huggingface dataset:
SWEET-Cat: A view on the planetary mass-radius relation
Authors: Sousa S. G. , Adibekyan V. , Delgado-Mena E. , Santos N. C. , Rojas-Ayala B. , Barros S. C. C. , Demangeon O. D. S. , Hoyer S. , Israelian G. , Mortier A. , Soares B. M. T. B. , Tsantaki M. 
Published: September 2024

Aims. SWEET-Cat (Stars With ExoplanETs Catalog) was originally introduced in 2013, and since then, the number of confirmed exoplanets has increased significantly. A crucial step for a comprehensive understanding of these new worlds is the precise and homogeneous characterization of their host stars.
Methods. We used a large number of high-resolution spectra to continue the addition of new stellar parameters for planet-hosting stars in SWEET-Cat following the new detection of exoplanets listed both in the Extrasolar Planets Encyclopedia and in the NASA exoplanet archive. We obtained high-resolution spectra for a significant number of these planet-hosting stars, either observed by our team or collected through public archives. For FGK stars, the spectroscopic stellar parameters were derived for the spectra following the same homogeneous process using ARES+MOOG as for the previous SWEET-Cat releases. The stellar properties were combined with the planet properties to study possible correlations that could shed more light on the star-planet connection studies.
Results. We have increased the number of stars with homogeneous parameters by 232 (~25% – from 959 to 1191). We focus on the exoplanets that have had both mass and radius determined to review the mass-radius relation, and we find results consistent with the ones previously reported in the literature. For the massive planets, we also revisit the radius anomaly, confirming a metallicity correlation for the radius anomaly already hinted at in previous results.
Emergency Surgical Management of Meningiomas: Factors Affecting Early Outcomes and Complications
Authors: Tyagi Gaurav , Chandshah Mustafa Iqbal , Birua Gyani Jail Singh , Sadashiva Nishanth , Konar Subhas , Beniwal Manish , Prabhuraj A.R. , Lingaraju T. S. , Krishna Gopal , Pruthi Nupur , Shukla Dhaval P. 
Published: September 2024

Abstract
Objective Intracranial meningiomas constitute a third of all brain tumors and are among the most common indications for neurosurgical procedures performed worldwide. Most meningiomas present with an indolent, longstanding history. However, the data on outcomes of emergency surgeries for meningioma is limited. This study aims to present our experience of urgent surgical intervention in patients with meningiomas presenting acutely. We also analyze the factors influencing early neurological outcomes and complications.
Materials and Methods All nonelective meningioma surgeries done on an emergency basis between January 2015 and December 2019 were retrospectively reviewed. Patients' demography, clinical, and radiological details were recorded for analysis. The surgical procedure, complications, and follow-up outcomes were also included for statistical comparison.
Results Forty-four patients qualified for the study with a mean age of 49.4 ± 13.4 years. The average presenting Glasgow Coma Scale (GCS) was 13; 47.7% of cases presented with altered sensorium. The most common lesion location was convexity (25, 56.8%), and the mean tumor volume was 74.1 ± 36.5 mL. Gross peritumor edema with mass effect was seen in 16 patients (36.4%). The mean Karnofsky Performance Status at 3 months' follow-up was 89.3 ± 18.2. Patient age and tumor size did not affect outcomes. The presenting GCS of < 15 (odds ratio [OR] 8.8, confidence interval [CI] 0.95–80.72, p 0.03) and the occurrence of postoperative complications (OR 25.71, CI 2.65–249.2, p 0.001) were associated with unfavorable outcomes. Although not statistically significant, a poor tumor grade was also associated with worse clinical outcomes (p 0.20).
Conclusion Emergency meningioma surgery has comparable outcomes and complication rates with routine elective procedures. Grade II/III meningiomas are more likely to present with acute neurological deterioration and carry a relatively worse prognosis. Poor presenting GCS and postoperative complications are the most critical factors associated with poor patient outcomes in our study.
Metachronous Second Primary in the Form of Nasopharyngeal Carcinoma Following Treatment of Small Cell Neuroendocrine Carcinoma of the Head and Neck: Dual Tracer PET/CT Findings Highlighting SSTR2 Expression and Its Theranostic Implications
Authors: Edamadaka Yeshwanth , Sonavane Sunita Nitin , Basu Sandip 
Published: September 2024

AbstractPatients of head and neck squamous cell carcinoma (HNSCC) experience increased risk of developing second primary cancer (SPC) necessitating active surveillance during their disease course. SPCs are associated with poor prognosis and are the leading cause of long-term morbidity and mortality impacting survival of patients with HNSCC. Small cell neuroendocrine carcinoma (SmNEC) is a rare but aggressive neoplasm with poor prognosis and high risk of local recurrence and distant metastasis. We report an exceedingly rare case of nasopharyngeal carcinoma (NPC) presenting as a recurrence in the form of metachronous second primary to primary SmNEC 9 years after chemotherapy. The dual tracer positron emission tomography and computed tomography (PET/CT) imaging approach ([68Ga]Ga-DOTATATE-PET/CT with 18F-FDG-PET/CT) was explored in such metachronous NPCs, and the findings are illustrated with its potential for theranostic applications. NPC is a rare malignancy with significant geographical variations in incidence rates. Somatostatin receptor 2 (SSTR2) expression in NPC is well documented and can serve as a potential theragnostic marker in advanced NPC where the successful outcome is minimal with currently available treatment modalities.
Outpatient Endocrine Protocol and Testing Coincides with Reduced Length of Postpituitary Surgery Admission
Authors: Eitan Dana N. , Cave Taylor B. , Bendok Bernard R. , Krishna Chandan , Lal Devyani , Miglani Amar , Patel Naresh P. , Patra Devi P. , Turkmani Ali , Marino Michael J. 
Published: September 2024

Abstract
Objective The study objective was to compare the length of stay (LOS) and the proportion of one-night admissions before and after the implementation of an endocrine monitoring protocol following endoscopic transsphenoidal surgery (ETSS) for pituitary adenoma.
Methods Patients who underwent transsphenoidal pituitary adenoma resection between July 1, 2018, and September 9, 2022, were identified, and divided into two cohorts before and after the implementation of the monitoring protocol. The overall LOS and number of nights of admission were recorded. Readmission within 30 days after surgery was also recorded. The number of outpatient laboratory tests performed and the time to the first test were also noted.
Results Thirty patients were identified in the preprotocol group and 60 in the postprotocol group. The average admission length in the preprotocol group was significantly longer than the average admission length in the postprotocol group (2.4 vs. 1.7 days, p = 0.004). The percentage of one-night admissions increased from 13 to 57% (p < 0.001). There were no significant differences in readmission rates between the two groups (p = 0.681). The number of laboratory encounters increased from a mean of 1.38 to 2.40 (p = 0.030), while the time to the first test decreased from a mean of 3.43 to 2.36 days (p = 0.049).
Conclusion Patients admitted after ETSS for pituitary adenoma had shorter hospital stay and greater proportion of one-night admission with the implementation of an endocrine monitoring protocol. The all-cause readmission rate was not statistically different between the two groups. Through aggressive outpatient laboratory monitoring, one-night admission for ETSS may be feasible.
Research on the electromagnetic ultrasonic detection method of initiation crack based on multi-acoustic coefficients fusion
Authors: Xing Yanhao , Zhang Xiaohui , Zhang Jia , Jin Haiyu , Lin Hongwei 
Published: September 2024

Abstract
The traditional single acoustic coefficient cannot judge the different degrees of fatigue damage such as initiation crack and crack extension. Based on the law between the structural evolution of dislocation pile-up initiation crack and the acoustic coefficients, a multi-acoustic coefficients fusion feature-fatigue damage stage detection method is proposed, according to the ultrasonic echo time-domain signal peak-to-peak amplitude of linear characteristics and ultrasonic echo frequency-domain signal nonlinear characteristics as the multi-acoustic coefficient fusion features. The multi-acoustic coefficient fusion feature is obtained by using the multi-point detection signal of a single fatigue-damaged aluminium plate in order to determine the different fatigue stages such as initiation crack and crack extension. The fatigue damage stage is calibrated by microscopic observation, and the accuracy of electromagnetic ultrasonic detection in the fatigue damage stage is compared and analyzed. The results show that the multi-acoustic coefficient fusion feature can effectively provide fatigue damage degree characteristics compared to a single acoustic coefficient. The detection method of multi-acoustic coefficients fusion can provide early warning of initiation crack and crack extension damage, which provides a theoretical and experimental basis for the application of electromagnetic acoustic transducer (EMAT) assessment of fatigue damage in metallic materials.
Absorbance measurement for interdisciplinary educational experiment on cytotoxicity
Authors: Zaharieva L , Stoyanova M , Dimova V , Genova T S , Antonov L , Markovski A , Iliev I , Andreeva C 
Published: September 2024

Abstract
We propose a multidisciplinary educational experiment, linking knowledge and skills in physics, biology and information technology through the training and application of the research method by students. From a physics point of view, the experiment consists in light absorption measurement, and in terms of biology, it demonstrates the process of cytotoxicity evaluation by means of the colorimetric method neutral red uptake in vitro test. The test allows to determine the concentration of a test drug at which 50% cytotoxicity (CC50 values) of the cells is observed. After initial exposure to the tested drug, neutral red (NR) is added to the cell culture medium, it is absorbed by the living cells and subsequently released in a desorb buffer. The cell culture medium becomes coloured, and the more intensive colour corresponds to higher cell viability, while more transparent solution corresponds to lower number of living cells. The NR concentration in the solution is estimated by the absorbance value. We measure the absorbance of NR by utilizing a very affordable educational-grade spectrometer and compare its output with that of a professional microplate reader. We show that the educational spectrometer gives a result on the CC50 value that is in agreement with the acceptable values of the official protocol. We include a comment on the results when performing this laboratory exercise in one class of 18 year old students (in their last year of secondary education). The experiment can be also successfully applied in the laboratory practicum of first year university study.
A novel plasma source concept for negative ion generation in neutral beam injectors for fusion applications
Authors: Chitarin G , Abate D , Elio F , Sartori E , Spizzo G 
Published: September 2024

Abstract
A low-temperature plasma can very well be confined by a simple magnetic dipole, such as in the Van Allen belts of Earth’s magnetosphere. This configuration can be reproduced in laboratory as a small experimental device, designed in such a way that the magnetic field lines remain within a vacuum-tight container and are virtually not intercepted by the container wall. In this paper we propose to use a dipole field for the realization of an efficient negative Ion source. To this purpose, we analyze the plasma confinement capabilities of such plasma source, in order to assess the equilibrium pressure and estimate the particle trajectories and drifts.
Various optimized artificial neural network simulations of advection-diffusion processes
Authors: Sari Murat , Gulen Seda , Celenk Pelin 
Published: September 2024

Abstract
The aim of this research is to describe an artificial neural network (ANN) based method to approximate the solutions of the natural advection-diffusion equations. Although the solutions of these equations can be obtained by various effective numerical methods, feed forward neural network (FFNN) techniques combined with different optimization techniques offer a more practicable and flexible alternative than the traditional approaches to solve those equations. However, the ability of FFNN techniques to solve partial differential equations is a questionable issue and has not yet been fully concluded in the existing literature. The reliability and accuracy of computational results can be advanced by the choice of optimization techniques. Therefore, this study aims to take an effective step towards presenting the ability to solve the advection-diffusion equations by leveraging the inherent benefits of ANN methods while avoiding some of the limitations of traditional approaches. In this technique, the solution process requires minimizing the error generated by using a differential equation whose solution is considered as a trial solution. More specifically, this study uses a FFNN and backpropagation technique, one of the variants of the ANN method, to minimize the error and the adjustment of parameters. In the solution process, the loss function (error) needs to be minimized; this is accomplished by fitting the trial function into the differential equation using appropriate optimization techniques and obtaining the network output. Therefore, in this study, the commonly used techniques in the literature, namely gradient descent (GD), particle swarm optimization (PSO) and artificial bee colony (ABC), are selected to compare the effectiveness of gradient and gradient-free optimization techniques in solving the advection-diffusion equation. The calculations with all three optimization techniques for linear and nonlinear advection-diffusion equations have been run several times to obtain the optimum accuracy of the results. The computed results are seen to be very promising and in good agreement with the effective numerical methods and the physics-informed neural network (PINN) method in the literature. It is also concluded that the PSO-based algorithm outperforms other methods in terms of accuracy.
KCaAs and KCaP: promising half-Heusler compounds for UV protection and thermoelectric applications
Authors: Hammadache O , Mesbah S , Houari M , Khelifa-Kerfa K , Benghanem M , Lantri T , Belarbi B 
Published: September 2024

Abstract
This study investigates the structural, electrical, optical, and thermoelectric properties of the half-Heusler compounds KCaAs and KCaP using the Full-Potential Linearized Augmented Plane Wave (FP-LAPW) method within the framework of density functional theory. Our analysis reveals that both compounds exhibit favourable characteristics for high-performance applications. Specifically, KCaAs and KCaP show high static refractive indices and significant reflectivity in the ultraviolet (UV) range, making them ideal for UV protection and optical devices. Thermoelectric analysis indicates that both materials are p-type semiconductors with high Seebeck coefficients at low temperatures, high electrical conductivity, and relatively low thermal conductivity. The temperature-dependent figure of merit (

ZT

) reveals robust thermoelectric performance across a wide temperature range, with maximum

ZT

values of approximately 0.77 for both compounds. These results suggest that KCaAs and KCaP are promising candidates for thermoelectric applications, offering significant potential for energy conversion and sustainable energy solutions.
Multi-objective simulated annealing-based quantum circuit cutting for distributed quantum computation
Authors: Hou Guangwu , Zhu Changhua , Sun Yi 
Published: September 2024

Abstract
In the current noisy intermediate-scale quantum (NISQ) era, the number of qubits and the depth of quantum circuits in a quantum computer are limited because of complex operation among increasing number of qubits, low-fidelity quantum gates under noise, and short coherence time of physical qubits. However, with distributed quantum computation (DQC) in which multiple small-scale quantum computers cooperate, large-scale quantum circuits can be implemented. In DQC, it is a key step to decompose large-scale quantum circuits into several small-scale subcircuits equivalently. In this paper, we propose a quantum circuit cutting scheme for the circuits consisting of only single-qubit gates and two-qubit gates. In the scheme, the number of non-local gates and the rounds of subcircuits operation are minimized by using the multi-objective simulated annealing (MOSA) algorithm to cluster the gates and to choose the cutting positions whilst using non-local gates. A reconstruction process is also proposed to calculate the probability distribution of output states of the original circuit. As an example, the 7-qubit circuit of Shor algorithm factoring 15 is used to verify the algorithm. Five cutting schemes are recommended, which can be selected according to practical requirements. Compared with the results of the mixing integer programming (MIP) algorithm, the number of execution rounds is efficiently reduced by slightly increasing the number of nonlocal gates.
Design of a high-gain, low-ECC 2x2 MIMO antenna for 28 GHz 5G wireless communication system
Authors: Pant Mohit , Malviya Leeladhar 
Published: September 2024

Abstract
In this paper, a 2 × 2 MIMO antenna with inset feed is designed for the frequency Range 2 (FR2) millimeter wave frequencies such as n257 (26-29.5 GHz), n258 (24.25-27.5 GHz), and n261 (27.5-28.35 GHz). The MIMO antenna is designed and fabricated using low loss Rogers RT/duroid 5880 substrate having dimension of 1.4λ
0×2.8λ
0×0.073λ
0, where λ
0 is the free-space wavelength operating at 28 GHz.The defected ground structure (DGS) minimized the surface waves current. Thus DGS are used to increased the gain and the isolation of the proposed MIMO antenna design. The gain of the MIMO antenna reported is 10.3 dBi with 97.01% radiation efficiency at 28 GHz resonant frequency. The -10 dB impedance bandwidth lies between 26.95-29.50 GHz, which covers the 5G frequency bands. The isolation is ≥28 dB and envelope correlation coefficient (ECC) is 10 −5, respectively, in the complete operating band.
Geometric parameter control for tunable resonance frequencies in asymmetric nanodots: equilibrium states and dynamic response
Authors: Sandoval Pedro , Mancilla Cristian , Tasso Nicolas , Saavedra Eduardo , Escrig Juan 
Published: September 2024

Abstract
Through numerical simulations, we delve into the examination of the equilibrium state and dynamic response of asymmetric nanodots. Within these nanodots, we identify two distinct equilibrium states—single domain and vortex. Our findings reveal a direct correlation between the number and frequencies of peaks and the minimum energy configuration, which is contingent upon the physical parameters of the system. This observation implies the potential to intentionally manipulate a desired set of frequencies by precisely controlling the geometric parameters of the system.
On the analytical soliton approximations to damping forced Zakharov-Kuznetsov equation arising in dissipative nonthermal magnetized plasma
Authors: El-Awady E I , Hussain S , Akhtar N 
Published: September 2024

Abstract
This paper aims to analyse the nonlinear characteristics of ion-acoustic solitary waves (IASWs) in a plasma system that is collisional and homogeneous in nature. The system under consideration comprises positive ions, negative ions, and nonthermal electrons and is influenced by an ambient magnetic field. To analyse the system, we utilize the reductive perturbation technique (RPT) and obtain the damped forced Zakharov-Kuznetsov (DFZK) equation. The DFZK equation provides a solitary wave solution when an external periodic force is present. Through numerical analysis of DFZK, we have observed that different parameters, e.g., the nonthermal parameters (r, q), the direction cosine, the temperature ratio of a positive ion to an electron, the temperature ratio of a negative ion to an electron, the density ratio of a negative ion to a positive ion source strength, and the source frequency, affect the phase velocity and the structures of IASWs significantly. This finding could help clarify the plasmas observed in the D- and F-regions of Earth’s ionosphere, as well as in laboratory experiments where pair ions and nonthermal electrons are key characteristics.
Analysis of molecular interactions of an aqueous benzoates with glycolic and lactic acid: spectroscopic, acoustic, and volumetric approach
Authors: Gill Ashpinder Kaur , Chakraborty Nabaparna , Juglan K C 
Published: September 2024

Abstract
Volumetric as well as Acoustic properties for the ternary liquid combination (water + sodium methyl p-hydroxybenzoate + glycolic acid/lactic acid) are evaluated at several temperatures using a Densimeter (DSA 5000 M) over the range of concentrations (0.000, 0.015, 0.025, 0.035) mol.kg−1. Several thermo-acoustical properties were computed utilizing the experimental data. These values were then used to derive several parameters, including the apparent molar volume(

V

∅

); partial molar volume

(

V

∅

0

)
;

apparent molar isentropic compression

(

K

∅
,
S

)
;

transfer properties(Δ

V

∅

0

,

Δ

K

∅
,
s

0

); partial molar isentropic compression

(

K

∅
,
s

0

)
;

apparent molar expansibility (

E

∅

0

) as well as its first derivative (

∂

E

ϕ

0

/
∂
T

) P; and coefficient of thermal expansivity(

α

p

). The obtained results are explained by analyzing the several interactions that take place inside the liquid system by implementing the theory of co-sphere overlap. Utilizing these thermodynamical parameters, the interaction coefficients are computed to evaluate the ternary mixture corresponding to the interactions between solutes and solvents. FTIR spectrum analysis revealed the presence of H-bonds along with the other molecular interactions in the analyzed systems, as shown by the shifting of the O-H stretching band.
Geometric structures and adsorption energies of mixed methanol and C60 cationic clusters produced within helium nanodroplets
Authors: Atta Sobia , Niaz Shanawer , Goulart Marcelo , Rasul Bilal 
Published: September 2024

Abstract
Mass spectrometry is a useful technique for studying molecular cluster sizes, their distributions, compositions, and stability. Methanol and fullerenes are among the species identified in the interstellar medium and, due to their high abundance, their interactions are an interesting investigation topic. A mass spectrometric study of mixed clusters of methanol and C60 inside helium nanodroplets is presented. Anomalies in the distribution intensities or magic numbers were observed for

[
C

H

3

OH
]

4

[

C

60

]

m

+

,
1
≤
m
≤
7
.

Water molecules within clusters were also detected, arising as one of the products of intermolecular methanol dehydration. Optimized and supposedly stable geometrical structures of these molecules are presented along with corresponding HOMO–LUMO gaps and adsorption energies. A linear decrease in adsorption energy and saturation at a critical cluster size was noticed.