bluuebunny/crossref_metadata_2025_split huggingface dataset:
Computation of monostatic RCS using adaptive sparsity pattern preconditioning with an MBF‐MLFMM approach
Authors: Delgado Carlos , García Eliseo , Cátedra Felipe 
Published: November 2024

AbstractThis work presents a numerical technique for the analysis of the Radar Cross Section (RCS) of large targets combining macro‐basis functions, the multilevel fast multipole method and the generation of near‐field preconditioners, using an approximate inverse matrix where the sparsity pattern is dynamic and computed considering an upper memory threshold. In order to improve the scalability, a group of rows is computed using the same least squares matrix minimising the Frobenius norm of the error, rendering each row group problem independent from the rest. This approach is applied to large and realistic problems in the test cases included. The presented preconditioner can be used to optimise the convergence of complex problems with respect to the hardware resources available in each case while being transparent to the user.
Impact of Parkinson Medication on Neuropsychiatric and Neurocognitive
Symptoms in Patients with Advanced Parkinson Disease Prior to Deep Brain
Stimulation
Authors: Haeckert Jan , Roeh Astrid , Karch Susanne , Koeglsperger Thomas , Hasan Alkomiet , Papazova Irina 
Published: November 2024

Abstract
Introduction This study evaluates the impact of Parkinson disease (PD)
medication in advanced PD on neuropsychological performance, psychiatric
symptoms, impulsivity and the quality of life. In the 4-year period 27 patients
with advanced PD, scheduled for deep brain stimulation (DBS) surgery (N=27, mean
age: 58.9±7.1, disease duration: 10.0 years±4.2) were examined preoperatively.
We hypothesized that a high dosage of PD medication or current use of dopamine
agonists affect cognitive functioning and psychiatric wellbeing.
Methods We performed two subgroup analyses with low versus high
levodopa-equivalent Dosage (LED) medication and without versus with
dopaminagonistic medication.
Results The neuropsychological testing revealed significant differences in
the verbal learn- and memory-test (VLMT) during the learning passage (U=36.500,
Z=− 2.475, p=0.012) and in the subtest of the semantic fluency of Regensburg
verbal fluency test (RWT) (t(25)=− 2.066, p=0.049) with better results for
patients without dopaminagonistic medication. Pearson correlation analyses of
LED in correlation with the clinical and cognitive dependent variables showed a
significant higher PANSS total score in patients with higher LED medication
(r=0.491, p=0.009). In addition, lower LED treatment was associated with
significant higher scores in the impulsivity perseverance subtest (r=− 0.509,
p=0.008).
Discussion In conclusion, we found lower LEDs to be correlated with a
better perseverance in the impulsivity test and additional treatment with a
dopamine agonist influenced some verbal learning tasks and the PANSS total score
in patients with advanced PD. This should be considered prior to DBS
surgery.
Endoscopic features of solitary colorectal hamartomatous polyps: Solitary juvenile polyp and Peutz-Jeghers polyp
Authors: Kawasaki Keisuke , Torisu Takehiro , Umeno Junji , Kurahara Koichi , Egashira Shinjiro , Miyazono Satoshi , Taniguchi Yoshiaki , Oshiro Yumi , Kawatoko Shinichiro , Nagasue Tomohiro , Matsuno Yuichi , Kawakubo Naonori , Nagata Kouji , Moriyama Tomohiko , Tajiri Tatsuro , Kitazono Takanari 
Published: November 2024

AbstractThe aim of this study was to clarify the endoscopic characteristics of colorectal hamartomatous polyps, including solitary juvenile polyp (JP) and solitary Peutz-Jeghers polyp (PJP). We reviewed the clinicopathological and endoscopic findings of 151 colorectal polyps with a diagnosis of solitary JP or solitary PJP. The clinicopathological and endoscopic findings of 119 JPs and 32 PJPs were retrospectively compared.Endoscopic findings included significantly higher incidences of erosion, whitish exudates, and chicken-skin mucosa in JPs compared with PJPs. A lobular surface was more common in PJPs. Magnified narrow-band imaging endoscopic findings indicated that expanded crypt openings, sparse marginal crypt epithelia, and proliferation of capillary vessels were characteristic of JPs. Branching structures were more prevalent in PJPs. Magnifying chromoendoscopy found a predominance of star-like pit patterns and decreased pit densities in JPs, whereas tubular and branching pit patterns were more frequent in PJPs. Neither type of polyp was found to contain adenomas, dysplasia, or malignant cells. Combinations of specific characteristic endoscopic findings in the JPs and PJPs showed high diagnostic accuracy for those polyps. Solitary JPs and PJPs in the colorectum manifested characteristic endoscopic findings, and combinations of specific characteristic endoscopic findings may be useful for endoscopic diagnosis of solitary JPs and PJPs.
Impact of Cannabis Legalization on Umbilical Cord Tissue Tetrahydrocannabinol Levels
Authors: Spence Kimberly , Milota Sarah , Buchanan Paula , Acharya Nirja , Mathur Amit M. 
Published: November 2024

Objective This study aimed to assess the impact of cannabis legalization on both qualitative and quantitative umbilical cord tissue tetrahydrocannabinol (THC) rates and concentrations as a proxy for fetal exposure.
Study Design This is a retrospective, observational study of umbilical cord tissue THC levels in a single center, comparing THC exposure rates and concentration levels before and after cannabis legalization in the state of Illinois, Epoch 1 (October 1, 2018–June 30, 2019, pre-legalization) and Epoch 2 (July 1, 2019–August 31, 2021, post-legalization).
Results A total of 811 umbilical cords were analyzed during epoch 1 and 2,170 during epoch 2. A higher percentage of umbilical cord tissue tested positive for THC in Epoch 2 compared with Epoch 1 (46.2% vs. 40.6%; p < 0.01). Mean THC levels were 51% higher in umbilical cord tissue in Epoch 2 versus Epoch 1 (6.2 ng/g vs. 4.1 ng/g; p < 0.001).
Conclusion Legalization of recreational cannabis was associated with more fetuses exposed to THC and in higher concentrations.
Key Points
Scientific Research Trend on Guided Tissue Regeneration: A Bibliometric Analysis
Authors: Alhumaidan Abdul Kareem Abdullah , Alam Beenish Fatima , Alsuwaiyan Asim , Aljoghaiman Eman Ahmed , Helmi Mohammad , Ali Saqib 
Published: November 2024

Abstract
Objectives Guided tissue regeneration (GTR) is a widely used technique in contemporary dentistry which helps achieve regeneration of periodontal tissues. This study aims to identify leading countries, authors, institutes, journals, scientific publications, and mostly used keyword regarding role of GTR in treatment for periodontal disease using the Scopus database.
Materials and Methods A well-curated search through Scopus database for significant literature related to GTR published between 1987 and 2023 was performed. Bibliographical data which comprised of abstracts, title, keywords, references, citations, and other relevant information were composed. The data was analyzed using MS Excel and VOSviewer.
Results Scientific literature on GTR was manually scrutinized, and 308 paper were analyzed using the Scopus database. The first paper on GTR was published in 1987. Journal of Periodontology was identified as the leading journal, while the United States and Italy were the top contributing countries. University of Sienna was the most productive organization. Roberto Pontoriero was identified as the highly cited author. A highly cited scientific paper was published by Pintippa Bunyaratavej in 2001.
Conclusion The present bibliometric study gives useful information related to the total number of scientific articles published from 1987 to 2023. A rising trend of scientific publication was identified which continued followed by a notable decline after 2004. The analysis also recognized the United States and University of Sienna, from Italy as most active country and organizations, while the Journal of Periodontology as the leading journal.
Clinical Relevance This study may assist in continuing education and evidence-based practice for clinicians and new researchers by providing knowledge and aiding literature searches in the domain of GTR used in treatment for periodontal conditions.
Effect of Cranial Cruciate Ligament Transection during TPLO on Patellar Desmitis in Dogs with Partial Cranial Cruciate Ligament Rupture
Authors: Almeida Mariana , Livet Véronique 
Published: November 2024

Abstract
Objective The aim of this study was to assess the protective effect of transecting a partially ruptured cranial cruciate ligament (CCL) during tibial plateau levelling osteotomy (TPLO) surgery on postoperative patellar ligament thickness (PLT) and shortening.
Study Design Dogs with partial CCL rupture that underwent a unilateral TPLO were included. The population was divided into two groups: remnant CCL transected (study group) and left in situ (control group). Preoperative and 6-week postoperative measurements of PLT, in three specific locations, and patellar ligament length (PLL) were collected. Risk factors for PLT and shortening were also included.
Results Fifty-two dogs (56 stifles) with partial CCL rupture were retrospectively included. Twenty-nine stifles (51.8%) had the remnant CCL transected (study group) and 27 stifles (48.2%) had the remnant CCL left in situ (control group). Significant differences were found on PLT measurements between pre- and 6-week post-surgery for all three ligament locations with greatest difference at the middle region. Median PLL was significantly shorter 6-week post-surgery for both groups. No significant differences in PLT nor PLL were identified between procedures where the remnant was transected or not.
Conclusion This study did not identify a protective effect of transecting the CCL remnant on PLT or patellar ligament shortening, contrary to other reports within the literature. Further investigation is needed in the form of prospective studies with higher number of cases to understand the clinical implications of patellar ligament thickening and shortening in dogs.
Experimental and computational optimization of sheet metal forming parameters for cylindrical cups of Al1100 and SS202
Authors: Kaimkuriya Amit , Balaguru S. 
Published: November 2024

Deep drawing is a critical manufacturing process in the automobile, aerospace, and packaging industries, widely employed for producing cup-shaped components. This paper provides a comprehensive evaluation of the deep drawing process for cylindrical cups formed from Al1100 and SS202, focusing on the influence of material type, blank diameter (50, 55, 60, and 70 mm), and lubrication conditions. A hybrid approach, combining experimental investigations, Finite Element Analysis (FEA), and the Whale Optimization Algorithm (WOA), was utilized to determine optimal process parameters, including load, compressive strength, and elongation. Experimental results indicated that FEA accurately predicted elongation (20 mm) across all blank diameters but overestimated maximum loads and compressive strengths, particularly for SS202. Lubrication significantly reduced loads and defects while enhancing elongation, although these improvements were not fully captured by FEA simulations. WOA outperformed FEA in predictive accuracy, achieving error margins as low as 1.87% for minimum load and 2.31% for compressive strength. The optimization process identified a 50 mm blank diameter as the most efficient for both the materials, enhancing material utilization and process efficiency. Integrating WOA with FEA yielded valuable insights into defect mitigation, particularly in reducing wrinkling and fractures, thereby improving product quality. This study demonstrates the effectiveness of combining advanced optimization algorithms with simulation tools, promoting sustainable manufacturing by enhancing efficiency and material utilization in deep drawing processes.
Investigating language learning strategy use in adult L2 literacy
Authors: Dalderop Kaatje 
Published: November 2024

Abstract
The study focuses on the language learning experiences of adult migrants from refugee backgrounds with limited
educational experiences before migration. This group is often referred to as LESLLA learners; LESLLA is an acronym for Literacy
Education and Second Language Learning for Adults. The study used Constructivist Grounded Theory (CGT) — a data-driven, bottom-up
methodology for qualitative research — to gain understanding of the conditions that help or hinder LESLLA learners’ language
development and of the strategies they use to enhance learning and to overcome obstacles. The dataset is comprised of thirty
interviews with adult refugees from Syria and Eritrea learning Dutch in the Netherlands. The analyses identified self-efficacy,
which has been described as ‘the soul of strategies’ (Oxford, 2017), as a core
category, differentiating between learners who showed contentment about their language learning achievements and expressed
confidence in further learning, and those who expressed little confidence and a sense of failure. Conditions hindering
self-efficacy include the cognitive conditions ‘forgetting’ and ‘stress’, and the social condition ‘isolation’. Facilitative
conditions in the cognitive realm are ‘motivation’ and ‘language learning strategies’. ‘Social strategies in new social networks’
is the condition that stands out as strongly supportive for self-efficacy. The data showed how LESLLA learners are often not in
the position of power to build their networks. This means that social strategies are not an individuals’ asset but rather a
condition that is distributed in a social system.
Translating Arabic allusions into English
Authors: Burohaima Lobna , Rabab’ah Ghaleb , Benmessaoud Sanaa 
Published: November 2024

Abstract
This article analyzes the translation of Key-Phrase (KP) allusions in the short story collection
“al-‘Abarāt” by Al-Manfaluti from Arabic to English. More specifically, it looks into how the translator
handled the complexity that arises from the highly intertextual and dialogical nature of Al-Manfaluti’s work. Drawing on Leppihalme’s (1997) categorization of allusions and Venuti’s (2009) approach to the translation of intertextuality, this research maps the translation strategies that the
translator employed and their effectiveness in the course of reconstituting source text intertextuality in the target language.
The results showed that, by and large, the translator very often employed a literal translation strategy by focusing on semantic
correspondence. Such an approach produced a translation that failed to capture the rich intertextual relations in Al-Manfaluti’s
original, leading to much cultural and thematic loss. The article concludes that a hermeneutic rather than an instrumental
approach would be more effective at preserving the intertextual richness of source texts.
Chemistry of C2S and C3S in L1544 with NSRT
Authors: Ma Rong , Li Xiaohu , Quan Donghui , Tuo Juan , Szczerba Ryszard , Esimbek Jarken , Zhou Jianjun , Iqbal Wasim , Ge Jixing , Fedoseev Gleb , Zhang Xia , Feng Yanan , Zhang Yong , Yang Tao , Fang Xuan , Wu Yihan , Li Fangfang , Miao Zhenzhen , Tang Xindi , Li Dalei , He Yuxin , Wu Gang , Ji Weiguang , Yang Chuan-Lu 
Published: November 2024

Abstract
Sulfur-bearing species are widely utilized to investigate the physical structure of star-forming regions in interstellar media; however, the underlying sulfur chemistry in these environments remains poorly understood. Therefore, further studies of S-bearing species are fundamentally important, as they can enhance our understanding of the physical evolution of star-forming regions. This study presents observations of C2S and C3S in L1544, acquired using the Nanshan 26-m radio telescope, along with simulations of their chemical behavior using a one-dimensional physical model. The simulation results reveal significant radial variations in the column densities of C2S and C3S. Additionally, the column densities of both molecules are found to be sensitive to the cosmic ray ionization rate at several radial positions, while variations in the C/O ratio have comparatively minimal impact on L1544.
Observational prospects of self-interacting scalar superradiance with next-generation gravitational-wave detectors
Authors: Collaviti Spencer , Sun Ling , Galanis Marios , Baryakhtar Masha 
Published: November 2024

Abstract
Current- and next-generation gravitational-wave observatories may reveal new, ultralight bosons. Through the superradiance process, these theoretical particle candidates can form clouds around astrophysical black holes and result in detectable gravitational-wave radiation. In the absence of detections, constraints—contingent on astrophysical assumptions—have been derived using LIGO-Virgo-KAGRA data on boson masses. However, the searches for ultralight scalars to date have not adequately considered self-interactions between particles. Self-interactions that significantly alter superradiance dynamics are generically present for many scalar models, including axion-like dark matter candidates and string axions. We implement the most complete treatment of particle self-interactions available to determine the gravitational-wave signatures expected from superradiant scalar clouds and revisit the constraints obtained in a past gravitational-wave search targeting the black hole in Cygnus X-1. We also project the reach of next-generation gravitational-wave observatories to scalar particle parameter space in the mass-coupling plane. We find that while proposed observatories have insufficient reach to self-interactions that can halt black hole spin-down, next-generation observatories are essential for expanding the search beyond gravitational parameter space and can reach a mass and interaction scale of

∼

10

−
13

–10−12 eV

/

c
2

and

≳

10

17

GeV, respectively.
Formulating the complete initial boundary value problem in numerical relativity to model black hole echoes
Authors: Dailey Conner , Schnetter Erik , Afshordi Niayesh 
Published: November 2024

Abstract
In an attempt to simulate black hole echoes (generated by potential quantum-gravitational structure) in numerical relativity, we recently described how to implement a reflecting boundary outside of the horizon of a black hole in spherical symmetry. Here, we generalize this approach to spacetimes with no symmetries and implement it numerically using the generalized harmonic formulation. We cast the evolution equations and the numerical implementation into a Summation By Parts scheme, which seats our method closer to a class of provably numerically stable systems. We implement an embedded boundary numerical framework that allows for arbitrarily shaped domains on a rectangular grid and even boundaries that evolve and move across the grid. As a demonstration of this framework, we study the evolution of gravitational wave scattering off a boundary either inside, or just outside, the horizon of a black hole. This marks a big leap toward the goal of a generic framework to obtain gravitational waveforms for behaviors motivated by quantum gravity near the horizons of merging black holes.
Potential application of p-type diamane as back surface field layer in silicon-based heterojunction solar cells
Authors: Naima  , Tyagi Pawan K , Singh Vinod 
Published: November 2024

Abstract
A higher efficiency of photovoltaic cells can be attained by optimizing their design, selecting the appropriate materials, and implementing of effective passivation process. The present study investigates the influence of the thickness and band gap of different layers of the solar cell and resuting opto-electric performance parameters of both single junction heterojunction (HJ) and heterojunction with intrinsic thin layer (HIT) cells. These cells are made up of a crystalline silicon (c-Si) active layer having back surafce field layer. The reported simulated work was conducted using AFORS-HET, an automated program specifically designed for simulating heterostructures. An efficiency of 26.86% has been attained for a HJ solar cell, this efficiency was further improved to 29.38% for the HIT solar cell by optimising all parameters. These cells require an emitter layer with a bandgap of around 1.4 eV. The optimal values of open-circuit voltage (V
OC), short-circuit current density (JSC), and fill factor are determined and found to be: 631.2 mV, 51.16 mA cm−2, and 83.16% for HJ solar cell, and 683 mV, 52.74 mA cm−2, and 81.55% for HIT solar cell. Moreover, the J-V curve, spectral response and quantum efficiency analysis have also been studied.
High performance AlGaN/GaN MISHEMTs using N2O treated TiO2 as the gate dielectric
Authors: Zhama Tuofu , Cui Peng , Chen Zijun , Zhang Jie , Zhao Haochen , Wei Lincheng , Sharma Ashwani , Bakaul Saidur , Zeng Yuping 
Published: November 2024

Abstract
In this work, TiO2 thin films deposited by the atomic layer deposition (ALD) method were treated with a special N2O plasma surface treatment and used as the gate dielectric for AlGaN/GaN metal insulator semiconductor high electron mobility transistors (MISHEMTs). The N2O plasma surface treatment effectively reduces defects in the oxide during low-temperature ALD growth. In addition, it allows oxygen atoms to diffuse into the device cap layer to increase the barrier height and thus reduce the gate leakage current. These TiO2 films exhibit a dielectric constant of 54.8 and a two-terminal current of 1.96 × 10−10 A mm−1 in 2 μm distance. When applied as the gate dielectric, the AlGaN/GaN MISHEMT with a 2 μm-gate-length shows a high on/off ratio of 2.59 × 108 and a low subthreshold slope (SS) of 84 mV dec−1 among all GaN MISHEMTs using TiO2 as the gate dielectric. This work provides a feasible way to significantly improve the TiO2 film electrical property for gate dielectrics, and it suggests that the developed TiO2 dielectric is a promising high-κ gate oxide and a potential passivation layer for GaN-based MISHEMTs, which can be further extended to other transistors.
Efficacy of nickel doped graphitic carbon nitride as energy storage material
Authors: Parashar M , Banerjee D , Chauhan K , Adalder A , Ghorai U K , Sen N , Chattopadhyay K K 
Published: November 2024

Abstract
The current article reports the synthesis of graphitic carbon nitride (GCN), through simple thermal decomposition of urea at a moderate temperature of 550 °C and doping of as-developed material with transition element like nickel. The proper phase formation of the sample was confirmed by x-ray diffraction whereas electron microscopic images analyzed the sample morphologies. The successful doping was verified by x-ray photoelectron spectroscopy whereas thermogravimetric study predicted the stability of the material under elevated temperature. Fourier transformed infrared spectroscopy showed that after Ni doping there is a substantial change in the vibrational energy level of the sample. UV–vis reflectance spectra confirmed the reduction of optical bandgap after metal doping. The samples show promises towards supercapacitor application. Cyclic voltametric study shows that after metal doping the value of specific capacitance became 162 Fg−1 at scan rate 5 mV s−1 and when the same was calculated from galvanostatic charging–discharging characteristics the values came even higher. The energy and power density of both the samples was calculated and all these when compared with different reported results, confirmed the performance of Ni doped GCN is comparable and sometimes even far better along with the advantages of the easy, large scale and high yield synthesis approach.