bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of Short‐Term Outcomes of Colorectal Cancer Surgery Performed by Male and Female Surgeons: A Japanese Multicenter Study
Authors: Ono Rika , Tominaga Tetsuro , Nonaka Takashi , Shiraishi Toshio , Hashimoto Shintaro , Noda Keisuke , Araki Masato , Sumida Yorihisa , Takeshita Hiroaki , Fukuoka Hidetoshi , Oyama Shosaburo , Ishimaru Kazuhide , Matsumoto Keitaro 
Published: January 2025

ABSTRACTIntroductionThe number of female doctors is increasing worldwide, but the percentage of female general surgeons and gastrointestinal surgeons remains low, at only 6% in Japan. Furthermore, in rural areas, the number of doctors is small and training opportunities are limited, and training in surgical techniques is reportedly inadequate compared with urban areas. This study examined the current status and surgical outcomes of colorectal cancer surgery by surgeon sex using a multicenter database in a Japanese rural area.MethodsWe retrospectively reviewed 3440 consecutive patients who underwent laparoscopic colorectal surgery in six participating hospitals between April 2016 and March 2023. Clinical and perioperative outcomes were compared between patients who underwent surgery by a male surgeon (M group; n = 3142) or by a female surgeon (F group; n = 298).ResultsYears of experience as a doctor was significantly shorter (M group vs. F group: 12 years vs. 9 years, p < 0.001), frequency of participation of an expert surgeon was higher (79.9% vs. 89.9%, p = 0.038), frequency of preoperative treatment was lower (8.2% vs. 2.3%, p < 0.001), clinical T status was lower (p = 0.011), and re‐operation rate was lower (3.1% vs. 1.0%, p = 0.045) in the F group. Multivariate analysis of clinical factors predicting postoperative severe complications revealed comorbidities (odds ratio 1.442, 95% confidence interval 1.045–1.990, p = 0.025) as an independent predictor of severe postoperative complications but not the presence of a female surgeon.ConclusionFemale surgeons in our study achieved comparable short‐term outcomes to male surgeons, including for laparoscopic procedures. Establishing an educational system in rural areas could provide improved surgical techniques.
Karyotype and phenotype association in Turner syndrome with non‐mosaic X chromosome structural rearrangements: Systematic review
Authors: Tanoshima Miki , Tanoshima Reo , Takase Hajime , Yamamoto Daisuke , Aoki Shigeru , Sakakibara Hideya , Miyagi Etsuko 
Published: January 2025

AbstractTurner syndrome is a chromosomal disorder, characterized by the partial or total deletion of one X chromosome, resulting in various karyotypes that presumably lead to different phenotypes. However, most studies find it difficult to predict phenotypes from karyotypes due to the presence of mosaicism. The purpose of this study is to clarify the relationship between karyotype and phenotype in Turner syndrome with non‐mosaic X chromosome structural rearrangements. A systematic literature search was conducted using Medline and Embase classics plus Embase between 1947 and September 2023. A total of 487 Turner women with non‐mosaic X chromosome structural rearrangements were included from the 69 studies. The prevalence of short stature was 72.4% in Turner syndrome with non‐mosaic X chromosome structural rearrangements, 80.1% in the short arm deletion group (del (Xp)), 75% in the del(X)(p22.3) group, 65.8% in the del(X)(p21) and del(X)(p22) group, and 37.5% (20%–66.7%) in the long arm deletion group (del(Xq)). The prevalence of ovarian dysfunction was 78.8% in Turner syndrome with non‐mosaic X chromosome structural rearrangements, 72.5% in the del (Xp) group, 27.6% in the del (X)(p22.3) group, 33.3% in the del (X)(p21) and del(X)(p22) group, and 94.6% in the del (Xq) group. The recognition of X chromosome breakpoints is useful in the management of Turner syndrome complications, since some phenotypes are unique depending on the deletion region. Ovarian dysfunction is significantly related to karyotype, so the identification of karyotypes in Turner syndrome is important for managing ovarian dysfunction and predicting future fertility.
Influence of the relaxation behaviour of polyester molecular chains in supercritical carbon dioxide fluid on dyeing performance
Authors: Wu Wei , Fan Bo , Zhou Qingqing , Zhao Qingyong , Zhong Yi , Xu Hong , Wang Jian , Mao Zhiping 
Published: January 2025

AbstractThis study investigated the mechanism of dye uptake in supercritical carbon dioxide fluid (ScCO2) by examining fibre swelling and molecular chain relaxation. The swelling rate of 30 D/3 Fila polyester fibres was tested under varying temperatures and pressures using a high‐temperature and high‐pressure in situ imaging platform. The swelling rate increased with temperature and pressure, but the rate of increase slowed above 100°C. The Williams–Landel–Ferry equation was used to analyse the relationship between the thermal relaxation of polyester macromolecular chains and dye uptake at high pressure (27 MPa) during ScCO2 dyeing. For dyes with poor solubility, dyeing behaviour above 100°C aligns closely with the free volume diffusion model. Conversely, for dyes with good solubility, dyeing behaviour follows the free volume diffusion model within the 50‐100°C range and reaches equilibrium above 100°C.
Insights on proton‐conducting ceramic electrochemical cell fabrication
Authors: Meisel Charlie , Huang Jake D. , Kim You‐Dong , Stockburger Sophia , O'Hayre Ryan , Sullivan Neal P. 
Published: January 2025

AbstractThis study investigates the key factors influencing sintering behavior and grain growth in (BCZYYb4411)–NiO negatrodes and BCZYYb electrolytes for protonic ceramic electrochemical cells (PCECs). Elastic net machine learning models are applied to a dataset of nearly 200 individual PCEC button cells fabricated over the course of more than 3 years to identify the key processing parameters that significantly affect negatrode shrinkage and electrolyte grain growth. The shrinkage rate of the BCZYYb4411–NiO negatrode is primarily governed by the solid‐state sintering behavior. Higher sintering temperatures, longer dwell times, and smaller NiO particle size are the primary determinants that lead to greater shrinkage. New or lightly‐used setters and more compact negatrodes are also found to increase shrinkage. Electrolyte grain growth is chiefly controlled by the liquid‐phase sintering of the BCZYYb phase. Increased cerium content on the B‐site leads to the largest enhancement in grain size, followed by increasing maximum sintering temperature. We find that the parameters used to tune the spray deposition of the electrolyte layer are also critical, with wetter and more uniform sprays promoting grain enlargement. Finally, we find that the sintering environment (e.g. presence/absence of sintering neighbors or sacrificial powders and the ambient humidity level) also substantially impacts both shrinkage and grain growth. This work comprehensively analyzes data from nearly 200 PCECs without “success bias,” meaning that poor performers and fabrication failures were included in the analysis. By doing so, the study provides valuable insight into the critical factors controlling shrinkage and grain growth in BCZYYb‐based PCECs. The findings offer foundational guidance for processing optimization that could lead to better repeatability, increased yields, and higher performance.
Periodontal Probing Depth Trajectory in 10 Years of Follow‐Up as Associated With Tooth Loss
Authors: Meisel Peter , Völzke Henry , Kocher Thomas 
Published: January 2025

ABSTRACTAimTo elucidate whether ranked probing depth (PD) data translate into ranked PD outcomes after 10 years of follow‐up and the associated tooth loss.Materials and MethodsFrom the Study of Health in Pomerania (SHIP‐START), all participants were retrospectively included with complete PD measurements in both baseline and 10‐year follow‐up, comprising 1887 participants. The trajectory of percentile‐based quintiles of mean PD measurements was followed.ResultsQuintiles of mean PD at baseline were, in a dose dependent manner, associated with the number of teeth at baseline, number of teeth after 10 years and involved risk of tooth loss. The trajectory of membership to individual PD quintiles indicated that the majority of participants remained in or near their baseline quintile after reaching the 10‐year end analysis. Periodontal risk factors assessed at baseline continued to affect PD outcomes at follow‐up. Two categories of tooth loss were identified: 1–2 teeth lost versus ≥ 3 teeth and differentiated by baseline PD.ConclusionPD severity ranked within this population translates, in a dose‐dependent manner, to follow‐up tooth loss even after many years. This underlines the prospective importance of pocket probing in the dental practice. Ranked PD offers a simple measure to identify patients at high risk of tooth loss.
Diversify or Concentrate? Supply Chain Responses to Policy Uncertainty
Authors: Namdar Jafar , Modi Sachin , Blackhurst Jennifer 
Published: January 2025

ABSTRACTThis study examines how firms adjust their sourcing decisions due to variations in policy uncertainty. Some studies recommend diversification to manage uncertainty, whereas others argue it complicates supply chains and favors onshoring instead. The theoretical ambiguity surrounding appropriate responses to domestic and upstream policy uncertainty necessitates empirical investigation. Therefore, the study assesses how domestic and upstream policy uncertainty influences a focal firm's decisions to restructure its supply chain along two dimensions: (a) onshoring/offshoring and (b) geographical diversification/concentration. The study's empirical evidence suggests that managers decrease the ratio of onshore suppliers and diversify their supply base geographically in response to heightened upstream policy uncertainty affecting suppliers. Although domestic policy uncertainty does not significantly affect firms' decisions to adjust their supply base structure, a post hoc analysis reveals that firms are likely to bring suppliers onshore when domestic policy uncertainty is very low. The study also documents that firms are more sensitive to upstream policy uncertainty than to domestic policy uncertainty. Upstream policy uncertainty, rather than domestic uncertainty, is the primary driver of adjustments to supply chain structure.
Petrologic characterization of CO3.0 chondrites: Implications for 60Fe‐60Ni analyses
Authors: Telus Myriam , Wickland Tyler D. , Kim Kyle , Simon Steven 
Published: January 2025

AbstractSamples in which Fe and Ni isotopes have not been disturbed by secondary processing are essential for constraining the initial solar system abundance of short‐lived radionuclide 60Fe, (60Fe/56Fe)SS. However, Fe‐ and Ni‐enriched veins and fractures within chondrules in unequilibrated ordinary chondrites (UOCs) imply late‐stage open‐system alteration that poses a potential problem for both bulk and in situ 60Fe‐60Ni systematics. This study focuses on petrologic characterization of CO3.0s, which show significantly less secondary alteration than UOCs, potentially making them better targets for studying 60Fe‐60Ni systematics. We determined the petrologic type of several CO3.0 meteorites with two independent approaches, Raman spectroscopy of matrix material and Cr2O3 content of FeO‐rich olivine grains. CO3 chondrites analyzed in this study range from 3.00 to 3.2 in petrologic type with slight variations between results from the two different methods. Upon analyzing two thin sections of DOM 08006, one of the most pristine CO3 chondrites known, we found a chemically anomalous region, indicative of parent body hydrothermal alteration. Using the X‐ray fluorescence microscopy beamline at the Australian Synchrotron, we collected high‐resolution quantitative element maps to evaluate Fe and Ni mobilization for several CO3.0s. These results indicate that late‐stage Fe and Ni mobilization like that observed in UOC samples is minor for most CO3 chondrites, highly localized and mostly limited to chondrule rims. Our results support that CO3.0s are well suited for further investigation of 60Fe‐60Ni systematics and that detailed characterization of both the petrologic type and late‐stage Fe and Ni mobilization of samples is important for further development of this short‐lived radionuclide system.
Optimizing Battery Maintenance and Reliability in Ground Control Station for Tethered High-Altitude Platforms
Authors: Arya P. S. , Rangaswamy Manikandan , Krishnamoorthy A. , Dharmaraja S. 
Published: January 2025

Abstract
This paper presents an integrated system for ensuring uninterrupted power supply to tethered high-altitude platform systems (HAPS) by strategically managing the repair and replenishment of batteries in a k-out-of-n:G, COLD system. We assume that the batteries are identical and their lifetimes are independent of each other and exponentially distributed. The batteries deteriorate independently due to failures and await repair. The repair facility is activated when the number of working batteries decreases to L (L&lt;n), and a replenishment order for n−k+1 batteries is placed when the number of operational batteries falls to N (N&lt;L). We derive an explicit solution for the system-state probability and analyze key performance measures. Furthermore, we employ the particle swarm optimization (PSO) algorithm to determine the optimal cost for the proposed optimization problem and use the Morris method for sensitivity analysis. The results provide insights into efficient battery management strategies for HAPS, ensuring reliable power supply while minimizing costs.
Comparison Analysis on the Hydraulic Performance and Flow Characteristics on a Reactor Coolant Pump Under Rated Operating Condition Between Lead–Bismuth Eutectic and Water Mediums
Authors: Lu Shangxiang , Jiang Huimeng , Wu Peng , Huang Bin , Wu Dazhuan 
Published: January 2025

Abstract
Advanced Generation IV nuclear reactors aim to enhance the sustainability, passive safety, reliability, and economic efficiency of reactor operations. Within that, the reactor coolant pump is a critical component in the reactor's cooling system, due to the unique characteristics of the transported medium, posing challenges for engineering applications. This study focuses on a mixed-flow nuclear reactor coolant pump, indicating that significant differences in hydraulic performance and flow characteristics arise due to the varying flow Reynolds numbers under identical operating conditions for the two mediums. Research employing quantitative analysis of boundary layer friction losses and flow separation-induced flow blockage elucidates the origins of hydraulic performance differences. Subsequent studies focusing on the flow characteristics within the impeller reveal that, while the flow patterns inside the impeller show no fundamental differences, an increase in Reynolds number intensifies flow slippage phenomenon, partially diminishing the impeller's work capability. Analysis in static components indicates that the stronger centrifugal forces lead to increased nonuniformity in flow distribution within the guide vanes and an amplified wake phenomenon within the outlet pipe.
Wear Characteristics of Dissimilar SDSS 2507–IN 718 Parts Fabricated by Cold Metal Transfer-Based Wire Arc Additive Manufacturing
Authors: Prasad Rajendra , Yuvaraj Narayana , Vipin  
Published: January 2025

Abstract
Metals may be efficiently additively manufactured using wire-arc additive manufacturing, often known as Wire-Arc Additive Manufactured (WAAM) process. The use of a cold metal transfer (CMT) machine allows the achievement of the desired outcome due to its low heat input and minimal spatter generation. A single thin-walled structure was created by fabricating Super Duplex Stainless Steel (SDSS) 2507 and Inconel (IN) 718 utilizing a filler wire with a diameter of 1.2 mm. This manuscript presents the summary of wear on the dissimilar alloy wall manufactured using the WAAM technique, subjected to dry sliding under extreme loading conditions. Wear testing was conducted in a dry, unlubricated environment using a standard high-load ball-on-disc tribometer. Wear-rate and coefficient of friction are minimum at low loading conditions for SDSS 2507. Energy-dispersive X-ray spectroscopy (EDS) verified fine element disintegration at the IF without composition change. The microstructure investigation indicates epitaxial grain growth in the build direction and non-equilibrium microstructures in the deposited layer. Scanning electron microscopy (SEM) of SDSS 2507 shows austenite and ferrite in the lower part, while SEM of IN 718 reveals columnar and cellular crystals with white laves phases formed due to the segregation of Nb and Mo elements. Worn surfaces reveal grooving, delamination, delamination cracks, ploughing grooves, parallel grooves, and particle adherence, confirming adhesion and abrasive wear mechanism. The absence of oxygen elements in EDS analysis shows that there is an absence of oxidative wear.
Fretting Wear Behavior of LPBF Ti-6Al-4V Alloy: Influence of Annealing and Anodizing
Authors: Usha Rani S. , Kesavan D. , Ramaseshan R. , Kamaraj M. 
Published: January 2025

Abstract
The present study involves understanding the fretting wear behavior of Ti-6Al-4V alloy produced by laser powder bed fusion (LPBF) under annealed and anodized conditions. The as-built microstructure consists of martensite (α′), which, on subtransus annealing at 850 °C, produces an α + β lamellar structure. The anodized surface forms flaky-like titanium oxide, enhancing the surface's hardness and morphology. Fretting tests were conducted on annealed and anodized samples using specially customized fretting curved contact on a flat surface to simulate the femoral trunnion junction. The as-built alloy exhibited the lowest coefficient of friction (COF), which increased slightly after heat treatment. Anodizing the as-built and heat-treated samples reduced the COF by ∼4.5%, resulting in a reduction of the wear coefficient by ∼37%. The drop in COF is reflected in wear loss and its operating mechanisms. Adhesive wear was identified as the predominant wear mechanism, independent of the material conditions. The results indicate that anodizing effectively improves the wear resistance of LPBF Ti-6Al-4V alloy in both as-built and heat-treated conditions, as evidenced by a lower coefficient of friction, reduced wear loss, and a lower wear coefficient. The wear resistance ranking is as follows: (annealed + anodized) &gt; (as-built + anodized) &gt; (as-built) &gt; (annealed). The subtransus annealing at 850 °C of LPBF Ti-6Al-4V alloy followed by anodizing is highly recommended for improved wear properties.
Transient Performance Study of Compliant Foil Cylindrical Gas Film Seal With Supercritical Carbon Dioxide
Authors: Chen Yuan , Jiang Aoxiang , Li Yuntang , Li Xiaolu , Wang Bingqing , Jiang Jinbo , Peng Xudong 
Published: January 2025

Abstract
A novel transient solution model for compliant foil cylindrical gas film seal utilizing supercritical carbon dioxide as the medium, taking mass eccentricity into account, has been established under the influence of combined high-speed fluid effects. This study reveals the transient operating mechanism of the seal, investigates the impact of mass eccentricity on transient behavior, analyzes the anti-interference capability of the seal under external excitation, and further determines the structural optimal range. The results show that the seal displays robust anti-interference capabilities in the presence of mass eccentricity and external excitation. The application of unidirectional excitation leads to notable fluctuations in the vicinity of the peaks of eccentricity and mass leakage rates, thereby reducing stability. In contrast, bidirectional excitation has been observed to result in significant fluctuations in sealing performance, which ultimately leads to a degradation in the system's functionality. The optimal sealing stability is achieved when the flexibility coefficient ranges from 0.001 to 0.004 and the length-to-diameter ratio is between 2.0 and 2.5.
Improving the Tribological Behavior of NiTi Alloy via Self-Catalytically Flame Growing Amorphous Carbon Coating
Authors: Zou Jinbin , Wang Xingyao , Du Xusheng 
Published: January 2025

Abstract
In this work, for surface protection of NiTi alloy, an amorphous carbon layer was directly deposited onto it via a self-catalytic flame coating method. The effect of the flame coating time on the physicochemical structure and mechanical hardness of the products was investigated, as well as its friction and wear resistance performance. The Vickers microhardness of the carbon-coated NiTi alloy decreased with the flame coating time, which was identified to be caused by the inherent thermal treatment during the flame coating process. The tribological test results indicated that both the friction coefficient (COF) and specific wear-rate of NiTi alloy were significantly reduced after the flame coating of the alloy. After direct flame treatment of the alloy for 20 min, 82.8% and 91.4% reduction in the COF and specific wear-rate could be achieved, respectively. The wear mechanisms of the coated NiTi alloy were found to be involved with the oxidation wear, adhesive wear, and the carbon transfer film, all of which had an important influence on the friction process. The carbon layer prepared by the flame coating method as a protective layer of NiTi alloy will greatly promote its versatile applications.
Identification and Analysis of Amino Acid Metabolism-Related Subtypes in Lung Adenocarcinoma
Authors: Zhou Yifan , Lu Qiangchang 
Published: January 2025

Background: We aimed to explore the role of Amino acid metabolism (AAM) and identify biomarkers for prognosis management and treatment of lung adenocarcinoma. Methods: Differentially expressed genes (DEGs) associated with AAM in lung adenocarcinoma were selected from public databases. Samples were clustered into varying subtypes using ConsensusClusterPlus based on gene levels. Survival analysis was conducted using a survival package, and immune analysis was performed using ssGSEA and ESTIMATE. Enrichment analysis was performed using GSEA, and a protein-protein interaction network of DEGs between subgroups was established through STRING. Hub genes were screened and verified using survival analysis, and drug sensitivity prediction was performed. Results: 163 DEGs associated with AAM in lung adenocarcinoma were obtained, and two AAM-associated subtypes were identified. Cluster1 showed higher survival rates and immune levels compared with cluster2. The two subtypes were mainly enriched in immune-related signaling pathways such as B cell receptor, Jak-Stat, and natural killer cell-mediated cytotoxicity. Additionally, the mutation landscape between the two groups was significantly different. F2, AHSG, and APOA1 were key hub genes that significantly affected the prognosis differences between the two subtypes. Cluster2 showed higher sensitivity to drugs such as Mithramycin, Depsipeptide, and Actinomycin than cluster1. Conclusion: This study identified two AAM-associated gene subtypes and their biomarkers and predicted the immune status and drug treatment sensitivity of varying subtypes. The results are instructive in the clinical treatment of lung adenocarcinoma.