bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical efficiency and safety of high-power short-duration radiofrequency ablation in treatment of patients with atrial fibrillation
Authors: Fayez A. , Safonov N. V. , Steklov A. S. , Faybushevich A. G. , Farzutdinov A. F. 
Published: August 2024

Aim. Evaluation of the clinical efficacy and safety of a high-power short-duration (HPSD) strategy for ablation index (AI) - guided pulmonary vein isolation (PVI) using different power settings.Methods. 185 patients were scheduled for AI guided ablation. Patients were randomized into 2 groups and every group was divided into two subgroups. First group (n=95) PVI was performed with 50W. Second group (n=90) with 45 W. In Ia and IIa AI was 400-450 au (arbitrary unit) in posterior wall and 500-550 au. in the anterior wall. In Ib and IIb AI was 400-450 au in posterior wall and 450-500 au in the anterior wall.Results. Efficacy of the PVI was 100% in all patients. Within 6 months, atrial fibrillation recurred in Ia, Ib, IIa and IIb subgroups were 5/55 (9,0%), 4/40 (10%), 6/50 (12%) и 5/40 (12,5%) p &gt;0,05. First-pass PVI in Ia, Ib, IIa and IIb subgroups were 53/55 (96,36%), 37/40 (92.5%), 46/50 (92%), 36/40 (90,5%) (p>0,05). There was no significant intra operative complications. The total procedure time was 55±10 min, 50±8 min, 60±10 min, 56±9 min (p>0,05).Conclusions. HPSD ablation in patients with atrial fibrillation significantly reduces the procedure time, does not increase the incidence of intraoperative complications and is effective in the short term results.
Pengaruh Penambahan Limbah Plastik Polietilena Tereftalat (PET) terhadap Karakteristik Marshall dengan Filler Limbah Las Karbit
Authors: Sanjani Ikhwan , Nababan Dewi Sriastuti , Kakerissa Yance 
Published: August 2024

Karakteristik marshall merupakan kemampuan suatu campuran aspal untuk menerima beban sampai terjadinya aliran (flow) yang dinyatakan dalam kilogram. Tujuan penelitian ini mengetahui pengaruh penambahan limbah plastik PET (Polyethylene Terepthalate) pada aspal beton AC – WC (Asphalt Concrete-Wearing Course) dengan filler las karbit. Penelitian ini mengunakan metode eksperimental dengan syarat yang telah ditentukan oleh Standar Bina Marga 2018. Cara pencampuran yang digunakan proses basah pencampuran langsung plastik (Polyethylene Terepthalate) ke dalam aspal panas, kemudian ditambahkan agregat. Variasi PET sebesar 3%,7% dan 9% dari berat total aspal. Hasil penelitian pengaruh penambahan plastik PET dengan filler las karbit, dapat mempengaruhi peningkatan dan juga penurunan terhadap karakteristik marshall. Hasil evaluasi volimetrik nilai stabilitas mengalami peningkatan sebasar 0,217%, marshall quotient mengalami peningkatan sebesar 0,088%, flow mengalami penurunan sebesar 0,114%, VIM (Void in Total Mix) mengalami peningkatan sebesar 0,415%, VFA (Void Filled With Asphalt) mengalami penurunan sebesar 0,210% dan VMA (Voids in Mineral Agregat) mengalami penurunan sebesar 0,244%. Dari hasil evaluasi volimetrik menunjukan penggunaan limbah plastik PET dengan variasi 3%,7% dan 9% belum optimal untuk digunakan sebagain bahan tambahan lapisan AC - WC, karena nilai VIM, VFA dan VMA tidak memenuhi spesifikasi umum Bina Marga 2018.
Spin-wave emission using a V-shaped antenna
Authors: Yoshida Ryota , Nezu Shoki , Sekiguchi Koji 
Published: August 2024

Abstract
We investigated the dynamics of spin waves in micro-patterned Permalloy thin films using time-resolved magneto-optic Kerr effect microscopy (TR-MOKE). By applying an external magnetic field, we observe the field dependence of spin wave signals with picosecond resolution. Fourier transform analysis of the signals confirms their agreement with the dispersion relation, demonstrating the successful detection of propagating spin waves using the MOKE technique. Furthermore, we perform dynamic measurements of interfering spin waves generated by a V-shaped antenna. The experimental results reveal differences in spin wave amplitude at each detection point. In combination with simulation analysis based on wave propagation from the V-shaped antenna, we reproduced the experimental results and revealed the existence of a protective zone.
Riesgo de acretismo placentario en pacientes con cesárea previa
Authors: Osorio Sagastume Amanda María 
Published: August 2024

PROBLEMA: el acretismo placentario es una anomalía obstétrica la cual conduce a complicaciones maternas graves, cuya incidencia se ha visto aumentada como consecuencia del incremento de cesáreas. OBJETIVO: describir el riesgo de acretismo placentario en pacientes con cesárea previa. MÉTODO: Se realizó una revisión sistemática de artículos médicos para recopilar información, utilizando los términos acretismo placentario y cesárea previa. RESULTADOS: el acretismo placentario consiste en la adhesión e invasión placentaria en el útero, la cual se ha encontrado en aumento en los últimos años de 1:30,000 a 1:333-533 condicionado por el aumento de cesáreas a nivel mundial, su diagnóstico requiere estudio de factores de riesgo y realización de ecografía, el tratamiento de elección es histerectomía. CONCLUSIÓN: el riesgo de acretismo placentario en pacientes con cesárea previa se debe a las alteraciones anatómicas y químicas que se produce en la cicatriz del útero en embarazos posteriores.
Pengendalian Kualitas Produk X Menggunakan Pendekatan Six Sigma
Authors: Putri Anindita 
Published: August 2024

Pengendalian kualitas merupakan aspek kritis dalam dunia manufaktur yang memegang peranan penting dalam menjamin produk yang dihasilkan memenuhi standar mutu yang ditetapkan. Dengan menerapkan sistem pengendalian kualitas yang efektif, produk cacat dapat diminimalisir, memberikan dampak positif terhadap kepuasan pelanggan dan reputasi perusahaan. Di era industri 4.0, persaingan antar perusahaan semakin kompetitif sehingga kualitas produk yang dihasilkan haruslah sesuai dengan permintaan dan harapan pelanggan. Namun kecacatan produk dapat diminimalisir jika akar permasalahannya dapat diperbaiki sehingga kualitas produk dapat dikendalikan. Pada penelitian ini akan membahas terkait pengendalian kualitas pada produk bahan baku menggunakan metode DMAIC. Hasil penelitian menunjukkan bahwa penyebab terjadinya kecacatan produk yaitu karyawan yang kurang disiplin , perencanaan pada tindakan maintenance belum dilakukan serta tidak ada tempat untuk penyimpanan bleaching earth yang merupakan komponen penunjang proses produksi.
Analysis of The Health of Financing Companies
Authors: Panjaitan Carolina , Suriawinata Iman Sofian , Anhar Muhammad 
Published: August 2024

This study aims to determine and analyze the soundness of the case study financing company PT Astra Sedaya Finance (ASF) for the period 2020-2021 in terms of governance ratios, risk profiles, profitability and capital. The non-bank financial institution that is the main focus of this research is the financing company PT Astra Sedaya Finance (ASF). This research uses descriptive analytic method. The data used uses the financial statements of PT Astra Sedaya Finance (ASF) for 2020-2021. The results of this study indicate that PT Astra Sedaya Finance (ASF) during 2020-2021 in terms of governance factors, the results of self-assessment research get a value of 1, in accordance with applicable regulations to support the implementation of good corporate governance principles in every line of work. and operations of the Company. The results of the second factor research are the risk profile has inherent risk which is dominated by credit risk, has a strong risk management application, from the active supervision of the Board of Directors, Board of Commissioners, and DPS, as well as the completeness of policies and units in identifying, controlling, and monitoring management. risk in all functions, including the existence of three lines of defense in risk management. Thus, the risk profile of PT Astra Sedaya Finance is considered quite good. The results of the research on the third factor are profitability as long as, in terms of performance, it is very good, the ability of profits to increase capital and the prospect of future profits is still high with a value of 1 or very good. And the fourth factor, namely capital, as well as the profitability factor, has been very good. Different from banks which have minimum capital requirements regulated by OJK Regulation Number 11/POJK.03/2016 concerning Minimum Capital Adequacy Requirements for Commercial Banks, which is 8% of Risk Weighted Assets, with a capital ratio of 41.52% much higher than minimum requirement of 10%.
EDUCAÇÃO EM SAÚDE SOBRE ARBOVIROSES PARA UMA POPULAÇÃO RIBEIRINHA NA AMAZÔNIA: PERSPECTIVA PARA EMPODERAMENTO
Authors: Rabelo Mestria Thais , Tamara Alves Carretta Lucca , Schroth Baptista Mariana , Alves Gratival Raposo Francine 
Published: August 2024

Objetivo: Qualificar a eficácia de ações de educação em saúde acerca de arboviroses, realizadas in loco e adaptadas ao contexto local, no empoderamento de populações ribeirinhas. Métodos: Estudo prospectivo de abordagem qualitativa e descritiva, desenvolvido a partir de uma coleta de dados com pacientes atendidos pelo barco-ambulatório Laguna Negra. Foram realizados, em formato de roda de conversa, um pré-teste, uma exposição oral e um pós-teste, todos acerca de arboviroses. Resultados: O pré-teste evidenciou desinformação ribeirinha sobre arboviroses. No entanto, após exposição oral dinâmica, o pós-teste imediato constatou boa retenção de informações. Conclusão: Portanto, considera-se a Educação em Saúde fundamental na promoção de mudanças permanentes no âmbito da saúde, haja vista o potencial da promoção de conhecimento em gerar empoderamento, por estímulo à autonomia ribeirinha. Dessa forma, faz-se necessário ações de Educação em Saúde mais frequentes, de modo a prevenir doenças e agravos.
The NANOGrav 15 yr Data Set: Chromatic Gaussian Process Noise Models for Six Pulsars
Authors: Larsen Bjorn , Mingarelli Chiara M. F. , Hazboun Jeffrey S. , Chalumeau Aurélien , Good Deborah C. , Simon Joseph , Agazie Gabriella , Anumarlapudi Akash , Archibald Anne M. , Arzoumanian Zaven , Baker Paul T. , Brook Paul R. , Cromartie H. Thankful , Crowter Kathryn , DeCesar Megan E. , Demorest Paul B. , Dolch Timothy , Ferrara Elizabeth C. , Fiore William , Fonseca Emmanuel , Freedman Gabriel E. , Garver-Daniels Nate , Gentile Peter A. , Glaser Joseph , Jennings Ross J. , Jones Megan L. , Kaplan David L. , Kerr Matthew , Lam Michael T. , Lorimer Duncan R. , Luo Jing , Lynch Ryan S. , McEwen Alexander , McLaughlin Maura A. , McMann Natasha , Meyers Bradley W. , Ng Cherry , Nice David J. , Pennucci Timothy T. , Perera Benetge B. P. , Pol Nihan S. , Radovan Henri A. , Ransom Scott M. , Ray Paul S. , Schmiedekamp Ann , Schmiedekamp Carl , Shapiro-Albert Brent J. , Stairs Ingrid H. , Stovall Kevin , Susobhanan Abhimanyu , Swiggum Joseph K. , Wahl Haley M. , Champion David J. , Cognard Ismaël , Guillemot Lucas , Hu Huanchen , Keith Michael J. , Liu Kuo , McKee James W. , Parthasarathy Aditya , Perrodin Delphine , Possenti Andrea , Shaifullah Golam M. , Theureau Gilles 
Published: August 2024

Abstract
Pulsar timing arrays (PTAs) are designed to detect low-frequency gravitational waves (GWs). GWs induce achromatic signals in PTA data, meaning that the timing delays do not depend on radio frequency. However, pulse arrival times are also affected by radio-frequency-dependent “chromatic” noise from sources such as dispersion measure (DM) and scattering delay variations. Furthermore, the characterization of GW signals may be influenced by the choice of chromatic noise model for each pulsar. To better understand this effect, we assess if and how different chromatic noise models affect the achromatic noise properties in each pulsar. The models we compare include existing DM models used by the North American Nanohertz Observatory for Gravitational waves (NANOGrav) and noise models used for the European PTA Data Release 2 (EPTA DR2). We perform this comparison using a subsample of six pulsars from the NANOGrav 15 yr data set, selecting the same six pulsars as from the EPTA DR2 six-pulsar data set. We find that the choice of chromatic noise model noticeably affects the achromatic noise properties of several pulsars. This is most dramatic for PSR J1713+0747, where the amplitude of its achromatic red noise lowers from

log

10

A

RN

=
−

14.1

−
0.1

+
0.1

to

−

14.7

−
0.5

+
0.3

, and the spectral index broadens from

γ

RN

=

2.6

−
0.4

+
0.5

to

γ

RN

=

3.5

−
0.9

+
1.2

. We also compare each pulsar's noise properties with those inferred from the EPTA DR2, using the same models. From the discrepancies, we identify potential areas where the noise models could be improved. These results highlight the potential for custom chromatic noise models to improve PTA sensitivity to GWs.
Novel Insights on the Dust Distribution in the Zodiacal Dust Cloud from PSP/WISPR Observations at Large Elongations
Authors: Stenborg Guillermo , Vourlidas Angelos , Paouris Evangelos , Howard Russell A. 
Published: August 2024

Abstract
The Wide-Field Imager for Solar Probe (WISPR) on the Parker Solar Probe (PSP) mission maps the brightness produced by the zodiacal dust cloud (ZDC) from an historically unprecedented viewpoint. The brightness results from the scattering of photospheric light by dust particles in the ZDC, and is called zodiacal light (ZL). We exploit the PSP nominal science encounters in orbits 10 through 16 for an in-depth study of the location and brightness evolution of the symmetry axis of the ZL in images taken with the WISPR outer telescope (WISPR-O). During these 11 day encounters, PSP covered heliocentric distances between 0.25 and 0.0617 au (∼53.78−13.28 R
☉) and ∼255° in helioecliptic longitude from within the orbital plane of Venus. The unique WISPR-O viewpoint, which comprises line-of-sight elongations of 80° ± 27°, has led to further insights about the ZDC. Namely, we find that the gravitational pull of the planets warps the ZDC symmetry plane and shifts the ZDC towards the solar system barycenter, creating an east–west asymmetry in the ZL brightness. Additionally, our analysis provides the first consistent observational evidence of a circumsolar dust enhancement resulting from the sublimation of dust grains at ∼25 R
☉. Overall, the WISPR observations from the PSP platform are opening a new window in the remote sensing of the ZDC.
Evaluating the Geoeffectiveness of Interplanetary Coronal Mass Ejections: Insights from a Support Vector Machine Approach with SHAP Value Analysis
Authors: Ye Yudong , Liu Jiajia , Hao Yongqiang , Cui Jun 
Published: August 2024

Abstract
In this study, we compiled a data set of 510 interplanetary coronal mass ejections (ICME) events from 1996–2023 and trained a radial basis function support vector machine (RBF-SVM) model to investigate the geoeffectiveness of ICMEs and its dependence on the solar wind conditions observed at 1 au. The model demonstrates high performance in classifying geomagnetic storm intensities at specific Disturbance Storm Time thresholds and evaluating the geoeffectiveness of ICMEs. The model’s output was assessed using precision, recall, F1 score, and true skill statistics (TSS), complemented by stratified k-folds cross-validation for robustness. At the −50 nT threshold, the model achieves precisions of 0.84 and 0.93, recalls of 0.94 and 0.82, and corresponding F1 scores of 0.89 and 0.87 for the categories separated by this threshold, respectively. Overall accuracy is noted at 0.88, with a TSS of 0.76. Despite challenges at the −100 nT threshold due to data set imbalance and limited samples, the model maintains an overall accuracy of 0.87, with a TSS of 0.69, demonstrating the model’s ability to effectively handle imbalanced data. Physical insights were gained through model explanation with a SHapley Additive exPlanations (SHAP) value analysis, pinpointing the role of the southward magnetic field component in triggering geomagnetic storms, as well as the critical impact of shock-ICME combinations in intensifying these storms. The effective application of an SVM model with SHAP value analysis offers a way to understand and predict the geoeffectiveness of ICMEs. It also underscores the capability of a relatively simple machine learning model in predicting space weather and revealing the underlying physical mechanisms.
Phase-resolved Deadtime of the Crab Pulsar Using IXPE Data
Authors: Vivekanand M. 
Published: August 2024

Abstract
After receiving an X-ray photon, an X-ray detector is not operational for a duration known as deadtime. It is detector specific and its effect on the data depends upon the luminosity of the source. It reduces the observed photon count rate in comparison to the expected one. In periodic sources such as the Crab pulsar, it can distort the folded light curve (FLC). An undistorted FLC of the Crab pulsar is required in combination with its polarization properties for studying its X-ray emission mechanism. This work derives a simple formula for the distortion of the FLC of a pulsar caused by the detector deadtime, and validates it using Crab pulsar data from the X-ray observatories Neutron Star Interior Composition Explorer and Nuclear Spectroscopic Telescope Array, which have very small and relatively large detector deadtimes respectively. Then it derives a method for correcting the distorted FLC of the Crab pulsar in Imaging X-ray Polarimeter Explorer data, which have intermediate detector deadtime. The formula is verified after addressing several technical issues. This work ends with a discussion of why an undistorted FLC is important for studying the formation of cusps in the FLC of the Crab pulsar.
On the Formation and Detectability of H2CNCN and Its Progenitors
Authors: Fortenberry Ryan C. , Esposito Vincent J. 
Published: August 2024

Abstract
New highly exothermic formation pathways incorporating both thermodynamic and kinetic control for the newly astronomically detected H2CNCN molecule are paired with extremely accurate quantum chemical rovibrational spectroscopic computations. The reactions between astronomically known CH2CN/CH2CCH + HNCN follow effectively identical pathways and proceed through stable intermediates and over deeply submerged transition states to form H2CNCN and HCN/HCCH coproducts. Similarly, the reaction between CH2CN and NCN− can also form H2CNCN, although this pathway first requires the initial formation of NCN−, which is currently undetected in space, via HNCN + CN−. This two-step mechanism uses the highly abundant CN− as the catalyst. Incredibly accurate quantum chemical spectroscopic data are reported for all reactants and products of these reactions, with errors between experimental values and the computations herein on the order of 0.1% or less. Anharmonic vibrational frequencies and intensities are also reported in order to guide experimental and observational searches for these molecules that have mostly been detected in the radio but may now be detectable via JWST.
Atomic Transition Probabilities for Ultraviolet and Optical Lines of Tm ii
*
Authors: Den Hartog E. A. , Voith G. T. , Roederer I. U. 
Published: August 2024

Abstract
We report new branching fraction measurements for 224 ultraviolet and optical transitions of Tm ii. These transitions range in wavelength (wavenumber) from 2350 to 6417 Å (42,532–15,579 cm−1) and originate in 13 odd-parity and 24 even-parity upper levels. Thirty-five of the 37 levels, accounting for 213 of the 224 transitions, are studied for the first time. Branching fractions are determined for two levels studied previously for comparison to earlier results. The levels studied for the first time are high lying, ranging in energy from 35,753 to 54,989 cm−1. The branching fractions are determined from emission spectra from two different high-resolution spectrometers. These are combined with radiative lifetimes reported in an earlier study to produce a set of transition probabilities and log(gf) values with accuracy ranging from 5% to 30%. Comparison is made to experimental and theoretical transition probabilities from the literature where such data exist. These new log(gf) values are used to derive an abundance from one previously unused Tm ii line in the UV spectrum of the r-process-enhanced metal-poor star HD 222925, and this abundance is consistent with previous determinations based on other Tm ii lines.
A Technique for Retrieving the Exospheric Number Density Distribution from Pickup Ion Ring Distributions
Authors: Masunaga Kei , Terada Naoki , Leblanc François , Harada Yuki , Hara Takuya , Sakai Shotaro , Yokota Shoichiro , Seki Kanako , Yamazaki Atsushi , McFadden James. P. , Usui Tomohiro 
Published: August 2024

Abstract
Ion pickup by the solar wind is ubiquitous in space plasma. Because pickup ions are originally produced by ionization of an exospheric neutral atmosphere, their measurements contain information on the exospheric neutral abundance. Here we established a method to retrieve exospheric number densities, by analyzing the ion velocity distribution functions of pickup ions measured by the Mars Atmosphere and Volatile EvolutioN spacecraft. We successfully retrieved exospheric oxygen density distributions at altitudes ranging from 1000 to 10,000 km around Mars except for the vicinity of the bow shock. This method can be applied to other space missions to study the upper atmosphere of planets, moons, and other small bodies in our solar system, where pickup ions exist.
Conceptualising Responsible Leadership in South Africa: An Interactive Qualitative Analysis
Authors: Grobler Anton , Koen Werner 
Published: August 2024

Purpose: The studying of responsible leadership as a leadership construct is facing challenges in defining, specifically within a South African context. This has been amplified by real-world challenges such as the increased unethical behaviour. This study aims to conceptualise responsible leadership as a leadership construct across industries, encompassing both private and public sectors in the context of South Africa.Design/methodology/approach: An exploratory qualitative design is employed: The Interactive Qualitative Analysis (IQA), a research methodology approach qualitative in format. This involves a step-by-step application to conceptualise responsible leadership through a controlled focus groups comprising of 19 leaders representing a diverse range of industries within South African. The inductive nature of initial stages, combined with deductive techniques, facilitates detection of perspectives on responsible leadership, enhancing the exploratory aspect of qualitative research.Findings/results: Results are illustrated using System Influence Diagram (SID): Demonstrating the primary driver in responsible leadership as growth, with sustainability and planning as secondary drivers. These secondary drivers, resulted in team mental health and values as secondary outcomes, and culminated to the primary outcome of business insight. Grounded on this, recommendations for future research are made.Practical implications: The significance of the study resides in the conceptualisation of the construct responsible leadership, within the South African context.Originality/value: This conceptualisation of responsible leadership is valuable because it aids in elucidating the social and ethical responsibilities of leaders, including their accountability to both stakeholders and society.