bluuebunny/crossref_metadata_2025_split huggingface dataset:
Primary breast angiosarcoma: A case report
Authors: He Yu , Qian Liyuan , Chen Lang , Liu Yang , Wen Yanguang , Cao Peiguo 
Published: February 2023

BackgroundPrimary breast angiosarcoma (PBA) is a rare sarcoma, accounting for only 0.04% of all breast malignancies, with a difficult diagnosis and a poor prognosis. Mastectomy is the standard treatment, and the role of adjuvant treatment (chemotherapy and/or radiotherapy following surgery) remains uncertain with very few studies.Case PresentationWe report the case of a 17-year-old female patient who presented with a right breast lump that had rapidly increased in size and was hemorrhaging. She was diagnosed with breast angiosarcoma by needle biopsy and pathological evaluation. However, the mass showed a quick tendency to bleed during biopsies. After that, we performed angiography and tumor vascular embolization. The patient underwent a mastectomy followed by adjuvant chemotherapy.ConclusionTumor vascular embolization reduced the surgical risk of PBA with hemorrhage complications. Postoperative therapeutic roles still need further exploration and verification.
Case Report: Ovarian pregnancy, a rare but lethal condition: An analysis of 112 cases
Authors: Shao Mengyuan , Wang Xinyi , Zhou Xin 
Published: February 2023

Study ObjectiveTo explore how to improve the treatment, and prognosis of ovarian pregnancy (OP).PatientsA total of 111 OP patients, one of the patients suffered from OP twice.ResultsIn this study, 112 OP cases confirmed by postoperative pathology were retrospectively analyzed. Common risk factors for OP were previous abdominal surgery (39.29%) and intrauterine device use (18.75%). We modified the ultrasonic classification into four types: gestational sac type, hematoma type I, hematoma type II, and intraperitoneal hemorrhage type. Among these four types, the proportion of patients who underwent emergency surgery as initial treatment after admission was 68.75%, 10.00%, 92.00%, and 81.36%, respectively. The treatment for hematoma type I patients was often delayed. The rate of OP rupture was 86.61%. All methotrexate therapy for OP patients failed. All these 112 cases underwent surgery treatment finally. The surgical procedures were pregnancy ectomy and ovarian reconstruction by laparoscopy or laparotomy. No significant differences were observed in the operation time or intraoperative blood loss between laparoscopy and laparotomy. Laparoscopy showed less influence on patients regarding length of hospital stay and postoperative fever than laparotomy. Further, 49 patients who desired fertility were followed up over 3 years. Among them, 24 (48.98%) experienced spontaneous intrauterine pregnancy.ConclusionAmong the four modified ultrasonic classifications, hematoma type I was associated with more delays in surgical time. Laparoscopic surgery was a better choice for OP treatment. The reproductive prognosis of OP patients was promising.
Is 3D-printed Titanium cage a reliable option for 3-level anterior cervical discectomy and fusion in treating degenerative cervical spondylosis?
Authors: Wang Shanxi , Fang Xuan , Qu Yunkun , Lu Rui , Yu Xiaojun , Jing Shaoze , Ding Qing , Liu Chaoxu , Wu Hua , Liu Yang 
Published: February 2023

BackgroundTo assess the clinical and radiographical outcomes of 3-level anterior cervical discectomy and fusion (ACDF) with a 3D-printed titanium cage in treating degenerative cervical spondylosis.MethodsIn this study, 25 patients with degenerative cervical spondylosis who underwent 3-level ACDF using a 3D-printed titanium cage from March 2019 to June 2021 were retrospectively enrolled. The patient-reported outcome measures (PROMs) were evaluated by visual analog scale (VAS) for the neck (VAS-neck) and arm pain (VAS-arm), Neck Disability Index (NDI) score, Japanese Orthopedic Association (JOA) score, SF-12 concise health survey, and the Odom criteria. The radiographical parameters, including C2-C7 lordosis, segmental angle, segmental height, and subsidence, were assessed. The mean duration of follow-up was 25.6 months.ResultsBony fusion was achieved in all patients (100%). In three patients (12%) mild dysphagia was observed during the follow-up. The VAS-neck, VAS-arm, NDI score, JOA score, SF-12 score, C2-C7 lordosis, and segmental angle improved noticeably at the latest follow-up. Based on the Odom criteria, 22 patients (88%) reported satisfactory (excellent or good). The mean loss of C2-C7 lordosis and segmental angle between the immediate postoperative and the latest follow-up values were 1.6° ± 0.5° and 1.1° ± 0.5°, respectively. The mean subsidence was 0.9 ± 0.6 mm.ConclusionIn patients with multi-level degenerative cervical spondylosis, 3-level ACDF using the 3D-printed titanium cage can effectively relieve the symptoms, stabilize the spine, and restore segmental height and cervical curvature. It is proven to be a reliable option for patients with 3-level degenerative cervical spondylosis. However, a future comparative study involving a larger population and longer follow-up time may be required to further evaluate the safety, efficacy and outcomes of our preliminary results.
Microbiome of High-Rank Coal Reservoirs in the High-Production Areas of the Southern Qinshui Basin
Authors: Shi Wei , Tang Shuheng , Zhang Songhang 
Published: February 2023

To study the distribution features of microorganisms in distinct hydrological areas of the southern Qinshui Basin, C-N-S microorganisms were studied using 16S RNA sequencing, metagenome sequencing and geochemical technologies, showing the high sensitivity of microorganisms to the hydrodynamic dynamics of coal. The hydrodynamic intensity of the #3 coal gradually decreased from the runoff areas to the stagnant areas. The stagnant zones have higher reservoir pressure, methane content, δ13CDIC and TDS and lower SO42−, Fe3+ and NO3− concentrations than the runoff areas. C-N-S-cycling microorganisms, including those engaged in methanogenesis, nitrate respiration, fermentation, nitrate reduction, dark oxidation of sulfur compounds, sulfate respiration, iron respiration, chlorate reduction, aromatic compound degradation, denitrification, ammonification and nitrogen fixation, were more abundant in the stagnant areas. The relative abundance of C-N-S functional genes, including genes related to C metabolism (e.g., mcr, mer, mtr, fwd and mtd), N metabolism (e.g., nifDKH, nirK, narGHI, nosZ, amoB, norC and napAB) and sulfur metabolism (e.g., dsrAB and PAPSS), increased in the stagnant zones, indicating that there was active microbiological C-N-S cycling in the stagnant areas. The degradation and fermentation of terrestrial plant organic carbon and coal seam organic matter could provide substrates for methanogens, while nitrogen fixation and nitrification can provide nitrogen for methanogens, which are all favorable factors for stronger methanogenesis in stagnant areas. The coal in the study area is currently in the secondary biogenic gas generation stage because of the rising of the strata, which recharges atmospheric precipitation. The random forest model shows that the abundance of C-N-S microorganisms and genes could be used to distinguish different hydrological zones in coal reservoirs. Since stagnant zones are usually high-gas-bearing zones and high-production areas of CBM exploration, these microbiological indicators can be used as effective parameters to identify high-production-potential zones. In addition, nitrate respiration and sulfate respiration microorganisms consumed NO3− and SO42−, causing a decrease in the content of these two ions in the stagnant areas.
Synthesis, Antifungal Activity, 3D-QSAR and Controlled Release on Hydrotalcite Study of Longifolene-Derived Diphenyl Ether Carboxylic Acid Compounds
Authors: Wu Xiaocui , Lin Guishan , Duan Wengui , Li Baoyu , Cui Yucheng , Cen Bo , Lei Fuhou 
Published: February 2023

Twenty-two novel longifolene-derived diphenyl ether-carboxylic acid compounds 7a–7v were synthesized from renewable biomass resources longifolene, and their structures were confirmed by FT-IR, 1H NMR, 13C NMR, and HRMS. The preliminary evaluation of in vitro antifungal activity displayed that compound 7b presented inhibition rates of 85.9%, 82.7%, 82.7%, and 81.4% against Alternaria solani, Cercospora arachidicola, Rhizoctonia solani, and Physalospora piricola, respectively, and compound 7l possessed inhibition rates of 80.7%, 80.4%, and 80.3% against R. solani, C. arachidicola, P. piricola, respectively, exhibiting excellent and broad-spectrum antifungal activities. Besides, compounds 7f and 7a showed significant antifungal activities with inhibition rates of 81.2% and 80.7% against A.solani, respectively. Meanwhile, a reasonable and effective 3D-QSAR mode (r2 = 0.996, q2 = 0.572) has been established by the CoMFA method. Furthermore, the drug-loading complexes 7b/MgAl-LDH were prepared and characterized. Their pH-responsive controlled-release behavior was investigated as well. As a result, complex 7b/MgAl-LDH-2 exhibited excellent controlled-releasing performance in the water/ethanol (10:1, v:v) and under a pH of 5.7.
Personalización de la política y liderazgos políticos: Los casos de las elecciones presidenciales de 2012 y 2018 en México
Authors: Martínez-García Ramsés Daniel , Vivero-Ávila Igor 
Published: February 2023

El propósito esencial de la ponencia es analizar la tendencia de la personalización de la política en campañas electorales como resultado del cambio dentro de las organizaciones partidistas, entendida como arreglos y ajustes institucionales que los partidos políticos han tenido que asumir para mantenerse presentes en el sistema de partidos mexicano, al maximizar la visibilidad mediática de los candidatos y de sus cualidades personales, delegando la experiencia política en segundo plano (Rahat, 2015) y, por otra parte, debido a los liderazgos políticos personales que han desarrollado.
Los estudios de caso que se presentan son dos. El primero es la elección presidencial de 2012 marca el regreso al poder del Partido Revolucionario Institucional (PRI) con su candidato Enrique Peña Nieto, bajo un esquema de campaña basado en el apoyo estructural del partido, pero también por una elevada exposición mediática de la vida personal de un político con cualidades carismáticas personales. El segundo caso que se analiza es la victoria de Andrés Manuel López Obrador, supone el ascenso de un partido político de reciente creación; Movimiento de Regeneración Nacional (MORENA) quien vio en la figura de su candidato el medio para ser protagonista de la vida política nacional. Ambos casos representaron alternancias de gobierno y muestran dos tipos de liderazgos políticos contrastantes desde su origen y en la forma que desarrollaron sus carreras políticas para llegar a la presidencia de la República.
También es importante señalar que hay factores exógenos que impulsan el cambio partidista y el surgimiento de liderazgos políticos personales. Entre ellos, se encuentra la disminución de identidades partidistas (Moreno, 2009) volatilidad del voto (Díaz y Vivero, 2015) y ascenso del uso de los medios de comunicación digital. Todo ello abona a que las campañas electorales se encuentren en la etapa posmoderna (Díaz, 2016) caracterizada por priorizar la exposición de la imagen personal de los candidatos y candidatas.
Osteoporosis-related characteristics in care home residents in England: a retrospective cohort study
Authors: Gerasimaviciute Vaiva , Mathur Rohini , Mansfield Kathryn Elizabeth , McDermott Matthew Paul , Neasham David Edward , O'Kelly James Liam 
Published: February 2023

BackgroundThe characteristics of care home populations, with respect to fracture risk factors, have not been well-defined.AimTo describe osteoporosis-related characteristics among care home residents, including fracture risk factors, fracture rates, post-fracture outcomes, and osteoporosis treatment duration.Design & settingA descriptive cohort study of care home residents aged ≥60 years (n= 8366) and a matched cohort of non-care home residents (n= 16 143) in England from 2012 to 2019. Clinical Practice Research Datalink (CPRD) linked to Hospital Episode Statistics (HES) and Office for National Statistics (ONS) death data were used.MethodThe characteristics were assessed using descriptive statistics. Fracture risk factors and fracture rates were described in both the care home and matched population. In the care home population, Kaplan–Meier curves were plotted to assess osteoporosis treatment duration.ResultsAt index, fracture risk factors were more common in care home residents versus the matched cohort, including body mass index (BMI) <18.5 (12.2% versus 5.1%), history of falls (48.9% versus 30.7%), prior fracture (26.5% versus 10.8%), and prior hip fracture (17.1% versus 5.8%). Fracture rate was 43.5 (95% confidence interval [CI] = 39.7 to 47.5) in care home residents and 28.0 (95% CI = 26.3 to 29.9) per 1000 person–years in the matched cohort. Overall, osteoporosis treatment was initiated in 3.6% (n= 225/6265) of care home residents and 45.9% remained on treatment at 12 months. Among care home residents who experienced fracture, 21.9% (n= 72/329) received an osteoporosis diagnosis; 21.2% (n= 63/297) initiated osteoporosis treatment post-hip fracture.ConclusionCare home residents had more fracture risk factors and higher fracture rates than the matched cohort; however, osteoporosis diagnosis, treatment rates, and treatment duration were low. There is an opportunity to improve osteoporosis management in this vulnerable population.
Coaxial heterostructure formation of highly crystalline graphene flakes on boron nitride nanotubes by high-temperature chemical vapor deposition
Authors: Kato Masakiyo , Inoue Taiki , Chiew Yi Ling , Chou Yungkai , Nakatake Masashi , Takakura Shoichi , Watanabe Yoshio , Suenaga Kazu , Kobayashi Yoshihiro 
Published: February 2023

Abstract
We develop a high-temperature chemical vapor deposition of highly crystalline graphene on the surface of boron nitride nanotubes (BNNTs). The growth of few-layer graphene flakes on BNNT templates was confirmed by scanning transmission electron microscopy. Based on an investigation of the effect of growth temperature and growth time on defect density, graphene with relatively high crystallinity was obtained at 1350 °C. The absence of undesirable alterations in the BNNT lattice during graphene growth was verified by multiple analyses. The high-temperature growth of heterolayers would assist in the advancement of nanodevices that coaxially combine graphene and boron nitride.
Effects of initial three-dimensional electron energy distribution on terahertz Bloch oscillations in a biased semiconductor superlattice
Authors: Unuma Takeya , Ueda Kosuke , Okamoto Ryuichi 
Published: February 2023

Abstract
We investigate how the initial three-dimensional energy distribution of electrons created by femtosecond pump pulses in a biased semiconductor superlattice affects terahertz Bloch oscillations, which imitate a step response to a bias electric field. The emitted terahertz waveforms are well reproduced from a damped oscillation current with capacitive nature, exhibiting shorter relaxation times and worse temporal resolutions for central pump photon energies that are outside the range of ordinary electron excitation into the conduction first miniband. This indicates that in-plane excess energy changes the relaxation time via scattering processes, while partial use of the pump pulse spectrum reduces the temporal resolution.
Financial Technology and Human Resource Competency in Financial Management for UMKM at Palopo City
Authors: Lestari A. Wulan , Antong Antong , Usman Halim 
Published: February 2023

Abstract
This study aint to determine the effect of fintech and human resource competencies in the financial management of umkm in palopo city. The data source in this study is primary data. The primary data used in this study were obtained from distributing questionnaires. The population selected for this study were UMKM in Palopo City. Respondents were given a number of statements and then asked to respond with their own statements. Furthermore, respondents were asked to fill out the questionnaire using an anonymous system. This approach aims to avoid potential bias during the data collection process. The research method used is quantitative method and analyzed using Structural Equation Model (SEM) approach using AMOS software. The questionnaire in this study was prepared based on the variables to be tested, namely Financial Technology, Resources, Financial Management of UMKM. All variables are measured using a Liket scale with 5 (five) alternative answers. The following are the specifications: 1) Strongly Disagree; 2) Disagree; 3) Neutral; 4) Agree; 5) Strongly Agree. The results showed that (1) The results of data analysis show that human resource competencies affect financial technology. (2) The results showed that simultaneously the umkm financial management variable had a significant influence on financial technology. (3) While the results of umkm financial management variables have an effect on human resource competencies.

Keywords: Fintech, Finance, Human Resources, Management, UMKM
An Immersive Virtual Reality Platform Integrating Human ECOG & sEEG: Implementation & Noise Analysis
Authors: Paschall Courtnie , Rao Rajesh P.N. , Hauptman Jason , G. Ojemann Jeffrey , Herron Jeffrey 
Published: February 2023

<p> Virtual reality (VR) offers a robust platform for human behavioral neuroscience, granting unprecedented experimental control over every aspect of an immersive and interactive visual environment. VR experiments have already integrated non-invasive neural recording modalities such as EEG and functional MRI to explore the neural correlates of human behavior and cognition. Integration with implanted electrodes would enable significant increase in spatial and temporal resolution of recorded neural signals and the option of direct brain stimulation for neurofeedback. In this paper, we discuss the first such implementation of a VR platform with implanted electrocorticography (ECoG) and stereo?electroencephalography (sEEG) electrodes in human, in-patient subjects. Noise analyses were performed to evaluate the effect of the VR headset on neural data collected in two VR-naïve subjects, one child and one adult, including both ECOG and sEEG electrodes. Results demonstrate an increase in line noise power (57-63Hz) while wearing the VR headset that is mitigated effectively by common average referencing (CAR), and no significant change in the noise floor bandpower (125-240Hz). To our knowledge, this study represents first demonstrations of VR immersion during invasive neural recording with in-patient human subjects. </p>
Adaptive-Output-Voltage-Regulation-Based Solution for the DC-Link Undervoltage of Grid-Forming Inverters
Authors: Luo Cheng , Ma Xikui , Liu Teng , Wang Xiongfei 
Published: February 2023

<p>This paper proposes an adaptive-output-voltage regulation (AOVR) based solution to alleviate the dc-link undervoltage for grid-forming (GFM) inverters. First, it is shown that large disturbances may cause the dc-link undervoltage for GFM inverters threatening the safe operation of the system. To tackle this issue, an AOVR-based control strategy is proposed, where the main idea is to reduce the output voltage of the GFM inverter and also speed up the dynamic process of the power angle by intentionally enlarging the frequency deviation of the active power control loop. By doing so, the dc-link output energy will reduce to avoid possible undervoltage. The parameter design of the proposed method is based on the overmodulation constraints, and an auxiliary module is configured for the low-voltage-ride-through (LVRT) requirements. The applicability of the proposed solution is also checked when considering the overcurrent limitation. The effectiveness of the proposed control strategy is finally confirmed by the experimental tests. </p>
Cosmic Muon Rates and Neutron Background in a Backpack Radiation Detection System
Authors: Pausch Guntram , Kong Yong , Kreuels Achim , Lentering Ralf , Schaedler Boris , Scherwinski Falko , Wolf Andreas , Stein Jürgen 
Published: February 2023

<p>Radiation detection systems for security applications are often equipped with neutron sensors and required to promptly respond with an alarm if the neutron flux exceeds the background level. As the ambient neutron flux is essentially caused by cosmic radiation, this background could be evaluated by assessing the rate of muons crossing the gamma-ray detector which is comprised in such systems anyway. A study performed with a commercial Backpack Radiation Detection System (BRD) demonstrates the feasibility of this approach, supposed the gamma spectrometer is capable of discriminating muon signals from energetic events caused by the gamma-ray cascades following neutron captures. This requires a dynamic range exceeding the usual 3-4 MeV. The instrument used provided standard spectroscopy up to 10 MeV and facilitated charge-loss compensated spectroscopy up to 1 GeV, which allowed a separate assessment of normal gamma events (< 3 MeV), neutron-capture gamma events (3-7 MeV), and muon events (> 10 MeV). In this case, the rate of neutron-capture gamma events can be used as a neutron indicator on its own, while the muon rate signals the ambient neutron background level.</p>
Training Postural Balance Control with Pelvic Force Field at the Boundary of Instability
Authors: Omofuma Isirame , Santamaria Victor , Ai Xupeng , Agrawal Sunil 
Published: February 2023

<p>This articles discusses the use of the Robotic Upright Stand Trainer (RobUST), a cable driven exoskeleton that actuates the trunk and pelvis independently, for postural balance control training. It examines the changes that occur in healthy patients after a perturbation based balance training session conducted in virtual reality. In addition, there are two testing conditions tested. In one condition subjects are given assistive support at the pelvis by RobUST to help resist perturbations and in the other, there is no assistive support. Data collected include electromyographic data from lower limb muscles, movement and variability of movement data. </p>
RadPleura: a Radiomics-based Framework for Lung Pleura Classification in Histology Images from Interstitial Lung Diseases
Authors: Cuadros Linares Oscar , Belizario Ivar Vargas , Batah Sabrina Setembre , Hamann Bernd , Fabro Alexandre Todorovic , Traina Agma J. M. 
Published: February 2023

<p>The diagnostic approach of interstitial lung diseases (ILDs) may be a challenge and requires a multidisciplinary discussion (MDD). While the definition of histological patterns of surgical lung biopsy by pathologists is helpful to the final diagnosis of MDD, its recognition could be challenging due to various degrees of lung remodeling and distortion. The pleura is a reference structure to identify some histological findings for the recognition of a pathological ILD pattern. When a pattern is found, it is important to know whether it is close to the pleura to determine its specific type and severity. This manual process is a tedious and laborious one for the pathologist. Automating this task is important for a complete computed-system-assisted ILD diagnostic process. We introduce ``RadPleura'' a framework for pleura classification of histopathological images using a radiomics-based approach. Our framework performs image pre-processing, region-of-interest segmentation, and extraction of a radiomic-signature fitted to ILD classification. To evaluate the radiomic-signature, we classified it into pleura and non-pleura, using two classifiers: Support Vector Machine and Gradient-boosted Decision Trees. Our experiments yield promising results, with F-scores of 92% for SVM, and 91% for GBD. We also created a dataset of lung histopathology images with respective ground truth for pleura classification. To the best of our knowledge, this study is the first disclosed attempt to explore and develop a radiomic-signature for pleura classification. The methods and techniques are integrated into the RadPleura framework developed.</p>